JP2016102319A - Switchgear and repair method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switchgear and a repair method thereof, adaptable to a change in an external environment and a secular change.SOLUTION: An automatic closing device being a mechanical control device provided in a shutter device being a switchgear before repair, having a slide member of freely sliding and mechanically controlling an opening-closing machine 13 and a mechanical joining device arranged in a shutter curtain 1 being an opening-closing body and making tensioning force for turning on a brake device act by dead weight of the curtain 1 by sliding a slide member on a locking wire by mechanically joining the curtain 1 and the locking wire being a string-like member when the curtain 1 abuts on an obstacle 34 existing in a moving passage of this curtain 1 in the middle of closing movement, are respectively changed to the automatic closing device provided in a composite device 300 and the mechanical joining device stored in a case 233, in the shutter device after repair.SELECTED DRAWING: Figure 23

Description

  The present invention relates to an opening / closing device provided with a mechanical opening / closing body stop device for mechanically stopping the closing movement when the opening / closing body that opens and closes contacts an obstacle during the closing movement, and a method for repairing the same. For example, the present invention can be used for various opening / closing devices such as a shutter device such as a management and disaster prevention combined use (combined) in which the shutter curtain is an opening / closing body, an awning device, and a smoke-proof hanging wall device.

  In the shutter device that is an opening / closing device disclosed in Patent Document 1 below, a shutter curtain that is an openable / closable movable body and a shutter curtain that can be stopped and moved by turning on and off An opening and closing machine having a brake device, an automatic closing device that has a slide member that is slidable to switch the brake device on and off, and is a mechanical control device for mechanically controlling the opening and closing machine; When the shutter curtain closes and moves, the shutter curtain and the lock wire that is a string-like member are mechanically By connecting, tension to turn on the brake device by sliding the slide member on this lock wire A mechanical coupling device that acts on the shutter curtain by its own weight, and a mechanical shutter curtain stopping device that is a mechanical opening / closing body stopping device for mechanically stopping the closing movement of the shutter curtain. ing.

JP 2010-059767 A

  By the way, when a change occurs in the external environment of the shutter device described above (for example, when the environment where the shutter device is exposed is changed to a poor one, or the structure, layout, etc. of the installation location of the shutter device are changed) Etc.) or when the above-mentioned shutter device changes over time (for example, the quality of the shutter curtain, switch, automatic closing device, mechanical coupling device, etc. provided in the shutter device over time) -When the performance changes, etc., it is necessary to adapt the shutter device described above to changes in the external environment and changes over time.

  For this reason, when a change occurs in the external environment of the shutter device, or when a secular change occurs in the shutter device, a device for adapting the shutter device to these changes is required.

  An object of the present invention is to provide a switchgear that can be adapted to changes in the external environment and changes over time, and a method for repairing the same.

  An opening / closing apparatus according to the present invention includes an opening / closing body that is openable / closable, an opening / closing machine having a brake device for stopping and moving the opening / closing body by turning on / off, and turning on the brake device. , Having a slide member that is slidable to switch off, mechanically controlling the opening / closing machine, and being disposed on the opening / closing body, wherein the opening / closing body is closed and moved When it comes into contact with an obstacle existing in the moving path of the opening / closing body in the middle, the sliding member is slid onto the string-like member by mechanically coupling the opening / closing body and the string-like member. And a mechanical coupling device for applying a tension force for turning on the brake device by the weight of the switching body, wherein the mechanical control device and the mechanical coupling device are , Is characterized in that at least one device is changed.

As described above, when a change occurs in the external environment of the switchgear or when a secular change occurs in the switchgear, it is necessary to adapt the switchgear to a change in the external environment or a secular change.

  In the switchgear according to the present invention, in order to adapt to these changes, at least one of the mechanical control device and the mechanical coupling device provided in the switchgear is changed.

  Therefore, according to the switchgear according to the present invention, the switchgear can be adapted to changes in the external environment and aging.

  Here, in the “change” of “the device has been changed”, the existing device (may be a part or all) may be changed to a device (device) having a different form and structure from the existing device. In addition, repairing existing equipment (some or all) may be repaired (including replacement with new equipment (device)) or existing equipment (some or all). Is simply moved (in other words, moved) from the place where the existing apparatus is provided to another place.

  It should be noted that the above-mentioned “changing an existing device to a type and structure different from this existing device” or “repairing an existing device” may involve movement, May be. In addition, in the above-mentioned “simply moving an existing device from a place where the existing device was provided” to maintenance of the existing device (for example, maintenance such as inspection, repair, maintenance, etc.) It may or may not be accompanied by modification (for example, addition, change, or deletion of a function).

  In the switchgear according to the present invention, as described above, “at least one of the mechanical control device and the mechanical coupling device has been changed”. For this reason, in the switchgear according to the present invention, The “change” pattern includes a first change pattern “the mechanical coupling device has not been changed, only the mechanical control device has been changed”, and “the mechanical control device has not been changed. There is a second change pattern in which only the mechanical coupling device is changed, and a third change pattern in which both the mechanical control device and the mechanical coupling device are changed.

  In the first change pattern described above, the form and structure of the mechanical coupling device that is not changed may be arbitrary, and the first example includes a pair of sandwiching members disposed on the opening / closing body and is closed. When the moving opening / closing body abuts against an obstacle, the pair of sandwiching members sandwich the string-like member so that a tension force acts on the string-like member. In addition, the second example of the structure and structure of the mechanical coupling device that has not been changed includes a rotating member that is provided with a plurality of teeth on the outer peripheral portion and that is rotated by a string-like member when the opening / closing body is moved, An engaging portion that can be engaged with the tooth portion of the rotating member is provided, and moves when the opening / closing body that is being closed is in contact with the obstacle. And a locking member that engages with the tooth portion and makes the rotating member non-rotatable.

  On the other hand, in the second change pattern or the third change pattern described above, the type and structure of the mechanical coupling device after the change may be arbitrary, and the first example is a plurality of teeth on the outer peripheral portion. A rotating member that is rotated by a string-like member when the opening / closing body is moved, and an engaging portion that can be engaged with the tooth portion of the rotating member. A lock member that moves when it comes into contact with an obstacle, and that engages with the tooth portion by this movement to make the rotating member non-rotatable. In addition, the second example of the type and structure of the mechanical coupling device after the change is provided with a pair of clamping members arranged on the opening / closing body, and the closing / moving opening / closing body contacts an obstacle When the pair of sandwiching members sandwich the string-like member, a tension force acts on the string-like member.

  In any one of the first to third change patterns described above, the removal of the obstacle causes the slide member to switch the brake device from on to off, and the opening / closing body resumes the closing movement to delay the removal of the obstacle. A delay device for starting at least before the change of the at least one device and after the change (of the at least one device) after the change (of the at least one device) You may or may not.

  That is, in any one of the first to third change patterns described above, the delay device may be at least one of a change before the change for at least one device and a change for the at least one device described above. You may or may not prepare for this change.

  For this reason, a pattern in which a delay device is provided (in other words, installed) includes a first installation pattern “provided after the change of the at least one device”, and “the above-mentioned of the at least one device. There is a second installation pattern that is “provided both before and after the change”.

  In the above-described second installation pattern of the delay device, the delay device may or may not be changed. That is, the delay device provided after the change of the at least one device may or may not be a change of the delay device provided before the change of the at least one device. Good.

  As an example of the former case, the delay device before being changed is the mechanical control device that has not been changed (the mechanical control device that has not been changed in the above-mentioned “second change pattern”) or before the change. The delay device after being changed and disposed at a location separated from the mechanical control device (the mechanical control device before being changed in the above-mentioned “first change pattern” or “third change pattern”) The mechanical control device that has not been changed (the mechanical control device that has not been changed in the above-mentioned “second change pattern”) or the mechanical control device that has been changed (the above-mentioned “first” Examples thereof include those arranged at a location close to the mechanical control device after being changed in “one change pattern” or “third change pattern”.

  The delay device is a device that is closely linked to the mechanical control device (and also the switch having a brake device). Therefore, the maintenance work of the delay device is performed together with the maintenance work of the mechanical control device. In many cases, it is more efficient that the delay device is arranged near the mechanical control device because the delay device maintenance work and the mechanical control device maintenance work can be performed together.

  In the change example of the delay device described above, the delay device after the change is arranged at a location closer to the mechanical control device than the location where the delay device before the change was arranged. .

  For this reason, according to the modification example of the delay device described above, the maintenance work of the delay device can be efficiently performed together with the maintenance work of the mechanical control device as compared with before the delay device is changed.

  Note that the “change” of “the delay device has been changed” is the same as the “change” of “the device has been changed” as described above, and the existing delay device (may be part or all). In addition to changing to a different type and structure (delay device) from this existing delay device, repairing the existing delay device (some or all) may be repaired (new one (delay device) ) Or an existing delay device (some or all) may be simply moved from the location where the existing delay device was provided to another location (in other words, moved) ) Etc. are included.

  In addition, the above-mentioned “changing an existing delay device to a type and structure different from this existing delay device” or “repairing an existing delay device” may involve movement. Good or not. In addition, in the above-mentioned “simply moving the existing delay device from the place where the existing delay device is provided to another place”, maintenance of the existing delay device (for example, inspection, repair, maintenance, etc.) Maintenance) or modification (for example, addition, change, or deletion of a function) may or may not be involved.

  The above-described string-like member may be an unmodified mechanical coupling device (an unmodified mechanical coupling device in the “first modification pattern” described above) or a modified mechanical coupling device (the above-described “first” It may or may not extend from the mechanical coupling device after the change in the “second change pattern” or “third change pattern”.

  In the former case, the string-like member may be connected to the mechanical control device that has not been changed or the mechanical control device that has been changed via the intermediate device, without the intermediate device ( In other words, it may be connected directly to an unmodified mechanical control device (without an intermediate device) or to a modified mechanical control device.

  In the former case, the delay device before being changed and / or the delay device after being changed may or may not delay the operation of the intermediate device described above.

  The intermediate device may or may not be changed. That is, the intermediate device provided after the change of the at least one device may or may not be a change of the intermediate device provided before the change of the at least one device. Good.

  In the former case, it may be provided with a composite device in which the changed mechanical control device, the changed intermediate device, and the changed delay device are combined. You don't have to.

  In the former case, the above-described composite device may or may not be a unitized device.

  According to the former case, it is easier to place and remove the mechanical control device after the change, the intermediate device after the change, and the delay device after the change compared to the latter case. It will be something.

  Note that “Change” in “Intermediate device has been changed” is similar to “Change” in “Change in device” or “Change in delay device” as described above. In addition to changing the type (some or all) to a different type and structure (intermediate device) from this existing intermediate device, existing intermediate devices (some or all) may be replaced. Repair (including replacing with a new one (intermediate device)) or an existing intermediate device (some or all of them) may be different from the location where the existing intermediate device was installed. Includes simply moving (in other words, moving).

  In addition, the above-mentioned “changing the existing intermediate device to a type and structure different from this existing intermediate device” or “repairing the existing intermediate device” may involve movement. Good or not. In addition, the above-mentioned “simply moving the existing intermediate device from the place where the existing intermediate device was provided” to maintenance of the existing intermediate device (for example, inspection, repair, maintenance, etc.) Maintenance) or modification (for example, addition, change, or deletion of a function) may or may not be involved.

  As described above, the string-like member is not mechanically changed via an intermediate device (including an intermediate device before being changed and an intermediate device after being changed). When the string-like member is the first string-like member in the case where the string-like member is connected to the control device or the changed mechanical control device, the mechanical control device is turned on by being pulled. You may make it connect the 2nd string-like member for turning off the brake device which has been set manually.

  In this case, the third string-like member for returning the mechanical control device to the initial state by pulling the mechanical control device that has not been changed or the mechanical control device that has been changed. May also be connected.

  Note that the direction of the string-like member extending in the opening movement direction of the opening / closing body from the mechanical coupling apparatus that has not been changed or the mechanical coupling apparatus that has been changed forms an angle with the opening movement direction by the direction changing device. It may be made to change into direction and does not need to be.

  The present invention can be applied to a switchgear having at least a function as a disaster prevention switchgear among functions as a management switchgear and a disaster prevention switchgear. In addition, the delay device before being changed and / or the delay device after being changed may be only for the function as a disaster prevention switchgear, for the function and management as the disaster prevention switchgear. It may be for both functions as a switchgear.

  The function as the management opening / closing device is that the opening / closing body is opened, moved, closed, and stopped by the operation of the operating device, thereby opening and closing an opening such as an entrance / exit. In addition, the function as a disaster prevention switchgear is that the switchgear that has a disaster prevention function such as fire prevention and smoke prevention closes and moves in the event of an abnormal situation such as a fire. A disaster prevention zone is formed.

  In the case where the switchgear according to the present invention also has a function as a management switchgear, when the switchgear is functioning as a management switchgear, the mechanical coupling device that has not been changed or after being changed You may make it provide the detection means for detecting that the said tension | tensile_strength acted on the said string-like member extended from this mechanical coupling device.

  According to this, when functioning as a management opening / closing device, it is possible to detect that the opening / closing body has come into contact with an obstacle, thereby electrically detecting the closing movement of the opening / closing body in contact with the obstacle. It becomes possible to control.

  The place where the detection means is provided (in other words, disposed) may be an arbitrary place. For example, it may be provided in the vicinity of the delay device before being changed and / or the delay device after being changed. Further, it may be provided on a stationary member such as a lintel that is an upper side forming member that forms an upper side of an opening such as an entrance that is opened and closed by an opening / closing body.

  Further, the type and structure of the detecting means may be arbitrary as long as it can detect that a tension force has acted on the string-like member. One example is that the tension force has acted on the string-like member. It is an electrical switch such as a micro switch that is operated by.

  In the above-described switchgear according to the present invention, as described above, “at least one of the mechanical control device and the mechanical coupling device has been changed”, and “delay device” Has been changed ", and further," the intermediate device has been changed ", but other members and devices provided in the opening / closing device, for example, an opening / closing body, an opening / closing device, and a string-like member Of these, at least one of them may be changed.

  An opening / closing device modification method according to the present invention includes: an opening / closing body that is openable / closable; an opening / closing machine that has a brake device for stopping and moving the opening / closing body by turning on and off; and the brake A sliding member that is slidable to switch the device on and off; and a mechanical control device for mechanically controlling the opening / closing device; and the opening / closing body, wherein the opening / closing body When the opening / closing body and the string-like member are mechanically coupled to each other when the abutment exists on the moving path of the opening / closing body during the closing movement, the slide member is attached to the string-like member. A mechanical coupling device that causes a tension force for sliding and turning on the brake device to act by its own weight, and a method for repairing the switching device, wherein the mechanical control device and the A first working step for deactivating at least one of the mechanical coupling devices, and a second working step for changing the at least one defunctionalized device to a device different from this device; , Is included.

  Note that, in the method of repairing a switchgear according to the present invention, “defunction” of “deactivate device (in other words, disable)” is an existing device (in other words, existing) (partially In addition to leaving this device in a state where it does not perform its functions as an existing device (for example, destroying or cutting wiring), the existing device (one Removal of the device from the place where the switchgear is provided (in other words, the repair site), and the like.

  The “change” in “Change to a device different from this device” includes changing the existing device to a different type and structure (device) from this existing device, as well as existing devices. Is replaced with a new one (device).

  In the present invention described above, the delay device (including the delay device before being changed and the delay device after being changed) may be of any form and structure. For example, it may be a mechanical device using a resistance force of a viscous fluid, a mainspring type timer, or the like, or an electric device using an electric timer.

  In the more specific example of the former case, the delay device includes a viscous fluid type damper, and this damper has a one-way clutch, and this one-way clutch acts on a string-like member with tension. When this occurs, the delay action by the viscous fluid is not generated, and when the tension of the string-like member disappears, the delay action by the viscous fluid is generated.

  The damper may be a rotary damper in which a blade rotating in a viscous fluid is attached to a rotation center shaft via a one-way clutch.

  In this case, the delay device is configured to include a rotation member for transmitting rotation to the rotation center axis of the rotary damper, and this rotation member acts on the tension force on the string-like member. It may be rotated in one direction and rotated in the other direction opposite to the one direction when the tension of the string-like member disappears.

  Note that, as described above, the delay device is provided both before and after the change of at least one device, and when this delay device is changed, the delay device is changed. If the type and structure of the delay device before being changed and the type and structure of the changed delay device are both configured to include a viscous fluid type damper, the delay device before being changed All or part of the constituent members and components may be used (in other words, diverted) as the constituent members and components of the delay device after the change.

  In the present invention, the string-like members (first, second and third string-like members) may have any shape and structure, and the string-like members may be, for example, wires made of metal or the like, and are synthetic resins. It may be a string made of rope, a rope, a chain such as a roller chain or a ball chain, or other elongated member.

  Further, the brake device provided in the opening / closing machine may be a single device by itself or, for example, in combination with an electric motor device for moving the opening / closing body to open / close the opening / closing body. It may be a part of an opening / closing machine for movement.

  In addition, the slide member for switching on and off the brake device is a mechanical control device for closing and moving the opening / closing body that has reached the fully open position or the like (if changed, the machine before being changed) Or a member constituting a device other than the mechanical control device, or a member constituting a mechanical control device after change). But you can.

  In the present invention, the mechanical coupling device (including the mechanical coupling device before being changed and the mechanical coupling device after being changed, if changed) is arranged at an arbitrary position of the opening / closing body. When the opening / closing body is configured to include an opening / closing body main portion and an opening / closing body sub-portion provided movably with respect to the opening / closing body main portion, The main part of the opening / closing body or the sub part of the opening / closing body may be used. However, when the mechanical coupling device is arranged in the main part of the opening / closing body, the part of the opening / closing body that moves by contacting the obstacle during the closing movement of the opening / closing body is an opening / closing body sub-part, and Since it is not the main part, the mechanical coupling device can be prevented from moving when contacting the obstacle. Thereby, the structure for making the opening / closing body and the string-like member mechanically coupled by the mechanical coupling device can be simplified.

  Further, in the present invention, when the closing movement direction of the opening / closing body is a downward direction, the opening / closing body includes the opening / closing body main body and an end member disposed on the lower side of the opening / closing body main body. In addition, the end member includes a fixed portion fixed to the opening / closing body main body, and a movable portion disposed below the fixed portion and movable in the vertical direction with respect to the fixed portion. The opening / closing body main part and the fixed part constitute the aforementioned opening / closing body main part, and the movable part can be the aforementioned opening / closing body sub-part.

  According to this, when the opening / closing body is closing and moving, the opening / closing body abuts against the obstacle present in the closing direction, the movable part serving as the opening / closing body sub-part abuts the obstacle. Therefore, the movement of the opening / closing body sub-part with respect to the opening / closing body main part by the obstacle can be more reliably performed.

  Further, the present invention can be applied to any opening / closing device, and an example of the opening / closing device is a shutter device in which the opening / closing body is a shutter curtain, and another example is a smoke-proof hanging wall device or the like. The present invention can be applied to various opening / closing devices.

  Furthermore, the shutter device may be a dedicated disaster prevention shutter device that forms a disaster prevention zone with a shutter curtain that is fully closed, or the shutter curtain opens and closes and moves according to the function as a disaster prevention dedicated shutter device and operation of the operation device. It may be a shutter device for both management and disaster prevention that has both functions as a management shutter device for stopping. The disaster prevention shutter device includes a disaster prevention shutter device for lifting means that closes the vicinity of the lifting means such as an elevator with a fully closed shutter curtain.

  Further, in the shutter device to which the present invention is applied, the shutter curtain may be configured by an arbitrary member and structure. That is, all or the main part of the shutter curtain may be formed by a plurality of slats, may be formed by a sheet, may be formed by a plurality of pipes connected by a link member, or may be formed by a plurality of panels. It may be formed with a net, and may be formed by combining a plurality of members among these members.

  Further, the opening / closing movement direction of the shutter curtain may be the vertical direction, or may be the horizontal direction. When the opening / closing movement direction of the shutter curtain is the vertical direction, the closing direction of the shutter curtain may be the downward direction or the upward direction.

  Furthermore, at least one of the opening and closing movements of the shutter curtain may be performed by the driving force of the electric motor device provided in the opening / closing device, or may be performed manually.

  Further, when the shutter curtain opening / closing movement direction is the vertical direction and the closing movement is downward, the closing movement may be performed by the dead weight of the shutter curtain, or the dead weight of the shutter curtain. The driving force of the electric motor device provided in the opening / closing machine may be added.

  Further, the means for stopping the shutter curtain before closing and moving in the downward direction may be a brake device of an opening / closing machine, or an end member provided at the end of the shutter curtain on the closing side, etc. The latching means provided with the latching member latched to this shutter curtain structural member may be sufficient.

  Further, the shutter curtain can be opened and closed by winding or unwinding the shutter curtain using a winding shaft, or the shutter curtain can be moved and opened when the shutter curtain reaches the fully closed position like an overhead door. May be performed while maintaining the same shape as the overall shape (including some that are slightly deformed but substantially the same shape), or the shutter curtain opening movement may be The curtain may be deformed into a curved shape, or a plurality of structural members such as a panel constituting the shutter curtain are connected when the shutter curtain is closed and moved when the shutter curtain is opened (shutter curtain storage) ) So that they are separated from each other and the components overlap in the thickness direction. You can have me.

  The shutter curtain opening and closing movement is performed by winding and unwinding the shutter curtain by forward and reverse rotation of the winding shaft, and the downward closing movement of the shutter curtain is the shutter curtain's own weight or the electric motor of the switchgear in addition to this own weight. For shutter devices that are driven by the driving force of the device, the winding shaft is provided with a return spring by a torsion coil spring or a mainspring spring that accumulates the return force during the closing movement of the shutter curtain, and the shutter curtain opens upward. The movement may be performed using the return force accumulated in the return spring as an auxiliary force.

  Note that the above-described method for repairing an opening / closing device according to the present invention may include a work process for changing at least one of the mechanical control device and the mechanical coupling device.

  In the case of this refurbishing method, a work process for changing other members and devices provided in the switchgear may also be performed (in other words, performed). For example, an operation process of changing at least one of a delay device, an intermediate device, an opening / closing body, an opening / closing machine, and a string-like member may be performed.

  In addition, in the “change” of the “operation process for changing the device” described above, as in the case of the switchgear according to the present invention described above, an existing device (may be part or all) may be used. In addition to changing to a different type and structure (device) from the device, repairing existing devices (some or all of them) (including replacing with new ones) In addition, it includes simply moving (in other words, moving) an existing device (may be part or all) from a place where the existing device is provided to another place.

  It should be noted that the above-mentioned “changing an existing device to a type and structure different from this existing device” or “repairing an existing device” may involve movement, May be. In addition, in the above-mentioned “simply moving an existing device from a place where the existing device was provided” to maintenance of the existing device (for example, maintenance such as inspection, repair, maintenance, etc.) It may or may not be accompanied by modification (for example, addition, change, or deletion of a function).

  According to the present invention, it is possible to obtain an effect that the switchgear can be adapted to changes in the external environment and aging.

FIG. 1 is a front view showing an entire shutter device serving as an opening / closing device before renovation (in other words, before change (before change)) according to an embodiment of the present invention. 2 is a cross-sectional view taken along line S2-S2 of FIG. FIG. 3 is a cross-sectional view showing the internal structure of the switch shown in FIGS. 1 and 2. FIG. 4 is a perspective view showing a mechanical obstacle detection device for mechanically detecting an obstacle when the shutter curtain as an opening / closing body abuts on the obstacle while moving. FIG. 5 is a view showing the front side of the case of the mechanical coupling device shown in FIG. 4 before being changed. FIG. 6 is a front sectional view of FIG. 5 showing the structure of the mechanical coupling device before being changed. FIG. 7 is a front view showing a state where the mechanical coupling device before being changed is attached to the shutter curtain. 8 is a cross-sectional view taken along line S8-S8 in FIG. FIG. 9 is a cross-sectional view showing a structure in which the mechanical coupling device before being changed is attached to the fixing portion of the seat plate of the shutter curtain. FIG. 10 is a view similar to FIG. 9 showing the structure of an embodiment different from FIG. FIG. 11 is a front view showing that the swinging member disposed inside the fixing portion of the seat plate is formed by connecting a plurality of extruded molded products or pull-molded products with connecting members. . FIG. 12 is a front view showing that the movable part of the seat plate is formed by simply arranging a plurality of extruded molded products or drawn molded products in the length direction without connecting them. 13 is a cross-sectional view taken along line S13-S13 in FIG. FIG. 14 is an opening / closing body sub-portion, and is similar to FIG. 13, which shows a case where the movable portion of the seat plate, which is the curtain sub-portion, is raised with respect to the obstacle by contact with the obstacle. FIG. FIG. 15 shows that when the shutter curtain being moved is in contact with an obstacle, the locking wire as the bridging member is locked by the mechanical coupling device before being changed, and the shutter curtain and the locking wire are It is a figure similar to FIG. 6 which shows the time of combining. FIG. 16 is a diagram showing an internal structure of a second processing device that is an intermediate device before the mechanical obstacle detection device shown in FIG. 4 is changed. FIG. 17 is a front view showing the internal structure of the automatic closing device before being changed as shown in FIG. FIG. 18 is a plan view showing the internal structure of the automatic closing device before being changed. FIG. 19 is a view similar to FIG. 18 illustrating when the solenoid of the automatic closing device is energized and excited before being changed due to a disaster such as a fire. FIG. 20 is a view similar to FIG. 18 showing when energization and excitation of the solenoid of the automatic closing device before being changed are stopped. FIG. 21 is a view similar to FIG. 18 showing when the shutter curtain in the closing movement comes into contact with an obstacle. FIG. 22 is a view similar to FIG. 16 showing the internal structure of the second processing apparatus when the shutter curtain that is being closed is in contact with an obstacle. FIG. 23 is a front view similar to FIG. 1 showing the entire shutter device which is an opening / closing device after refurbishing (in other words, after being changed (after being changed)) according to an embodiment of the present invention. 24 is a cross-sectional view taken along line S24-S24 of FIG. FIG. 25 is a cross-sectional view showing the internal structure of the switch shown in FIGS. 23 and 24. 26 is a cross-sectional view taken along line S26-S26 of FIG. FIG. 27 is a view similar to FIG. 26 illustrating when the shutter curtain that is being closed is in contact with an obstacle. FIG. 28 is a side sectional view showing an internal structure of the case shown in FIGS. 26 and 27. FIG. 29 is a front view showing the entire case shown in FIGS. 26 and 27. 30 is a front view showing the structure housed in the case of FIG. FIG. 31 is a view similar to FIG. 30 showing when the shutter curtain that is being closed is in contact with an obstacle. 32 is a cross-sectional view taken along line S32-S32 of FIG. 33 is a view taken in the direction of arrow S33 in FIG. 34 is a cross-sectional view taken along line S34-S34 in FIG. FIG. 35 is an enlarged front view showing the lock member shown in FIGS. 30 and 31. 36 is a side sectional view showing the direction changing device shown in FIGS. 23 and 24. FIG. FIG. 37 is a front view showing the internal structure of the composite device including the automatic closing device after being changed shown in FIGS. FIG. 38 is a plan view showing the internal structure of the composite apparatus. 39 (A) and 39 (B) are plan views showing separately the intermediate device after being changed and the automatic closing device, which are the devices constituting the composite device. 40 (A) and 40 (B), the intermediate device after the change and the automatic closing device are separated when the solenoid of the automatic closing device after being changed due to a disaster such as a fire is energized and excited. It is the top view shown. 41 (A) and 41 (B) are plan views showing separately the intermediate device after being changed and the automatic closing device when energization and excitation of the solenoid of the automatic closing device after being changed are stopped. is there. 42 (A) and 42 (B) are plan views showing the intermediate device after being changed and the automatic closing device separated when the shutter curtain during the closing movement comes into contact with the obstacle.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The opening / closing device according to the present embodiment is a shutter device in which the opening / closing body is a shutter curtain. The shutter device according to the present embodiment is a combined (in other words, combined use) shutter device for management and disaster prevention. That is, the shutter device according to the present embodiment has a function as a shutter device for management in which the shutter curtain moves to open and close an opening such as an entrance and a shutter curtain having a disaster prevention function such as smoke prevention. It has a function as a shutter device for disaster prevention for forming a disaster prevention zone in a structure such as a building by closing and moving when an abnormal situation such as a fire occurs.

  Further, the shutter device according to this embodiment will be described in detail later, but the shutter curtain that can be opened and closed and a brake device that can be stopped and moved by turning on and off the shutter curtain. An opening / closing machine having a sliding member that is slidable to switch the brake device on and off, and a mechanical control device for mechanically controlling the opening / closing machine, and a shutter curtain. When the shutter curtain closes and moves, the shutter curtain and the lock wire, which is a string-like member, are mechanically coupled to each other when the shutter curtain abuts against an obstacle existing in the moving path of the shutter curtain. The shutter force is applied to the wire for sliding the slide member to turn on the brake device. It has a mechanical coupling device that acts by its own weight, and it is a mechanical shutter curtain stop device that is a mechanical opening / closing body stop device for mechanically stopping the closing movement of the shutter curtain, and by removing obstacles A delay device for causing the slide member to switch the brake device from on to off and restarting the closing movement of the shutter curtain with a time delay from the removal of the obstacle.

  As will be described below, in the present embodiment, the shutter device shown in FIGS. 1 to 22 described later provided with the above-described devices is modified to the shutter device shown in FIGS. 23 to 42. It is supposed to be.

  FIG. 1 shows the entire shutter device before refurbishment according to the present embodiment (in other words, before change). FIG. 1 shows that the opening / closing movement direction is vertical, and the shutter device is downward. The shutter curtain 1 that is closed and moved is shown in a half-closed state in which the shutter curtain 1 is closed to about half. The opening that is opened and closed by the shutter curtain 1 is an entrance 2 formed in the building. The entrance 2 includes a left and right building housing 3 such as a wall and a lower end of the shutter curtain 1 when fully closed. It is surrounded by a floor 4 and a ceiling member 5 that are counterpart members to be hit. Left and right guide rails 6 in which both end portions in the left and right direction of the shutter curtain 1, in other words, both end portions in the width direction of the shutter curtain 1 are slidably inserted are attached to the left and right building housings 3. Guided by these guide rails 6, the shutter curtain 1 moves up and down.

  A shutter box 8 is disposed in a ceiling space 7 partitioned by the ceiling member 5 with respect to the entrance / exit 2, and this shutter box 8 is shown in FIG. 2, which is a cross-sectional view taken along line S <b> 2-S <b> 2 of FIG. As shown in the figure, it is coupled to a building housing 9 such as a falling wall existing in the ceiling space 7 with a coupler 10 such as a bolt. A take-up shaft 11 is horizontally accommodated in the shutter box 8, and the take-up shaft 11 is rotatably supported by the left and right side portions 8A and 8B shown in FIG. Yes. As shown in FIG. 1, an opening / closing machine 13 is connected to one end of the winding shaft 11 via a driving force transmission means 12 using a sprocket wheel and a roller chain. The opening / closing machine 13 serving as a driving device for driving the winding shaft 11 is also shown in FIG. 2, and the rotational force of the driving shaft 14 of the opening / closing machine 13 is driven by a driving sprocket attached to the driving shaft 14. A driving force transmission means 12 includes a wheel 12A, a driven sprocket wheel 12B attached to the one end of the winding shaft 11, and an endless roller chain 12C bridged between the sprocket wheels 12A and 12B. Then, it is transmitted to the winding shaft 11.

  As shown in FIG. 2, the opening / closing device 13 of the present embodiment is attached to a bracket member 15 coupled to one of the left and right side surface portions 8A and 8B of the shutter box 8. ing.

  As can be seen from FIG. 2, the shutter curtain 1 is wound around the winding shaft 11, and the upper end of the shutter curtain 1 is coupled to the outer peripheral surface of the winding shaft 11. Further, the lower part of the shutter curtain 1 from the winding shaft 11 is suspended below the ceiling member 5 through a slit 17 provided in the lintel 16 disposed on the ceiling member 5, and further the shutter. Both ends in the width direction of the curtain 1 are slidably inserted into the left and right guide rails 6 as described above. A fixed member lintel 16 such as a lintel that is an upper side forming member that forms the upper side of the doorway 2 that is an opening is formed by lintel members 16A and 16B that are arranged to face each other, and these lintel members 16A and 16B. A slit 17 is formed between them.

  FIG. 3 is a cross-sectional view showing the internal structure of the switch 13. As shown in FIG. 3, the switch 13 includes a DC or AC electric motor device 18 and a brake device 19 arranged in parallel in the axial direction, and the drive shaft 14 described above includes an electric motor device. The rotary shaft is fixedly arranged at the center of the 18 rotating rotors 18A. A disc-shaped brake shoe 20 as a first brake member is coupled to the end of the drive shaft 14 on the brake device 19 side. The brake device 19 is provided with a brake shaft 21 that is slidable by a fixed distance in the axial direction. The brake shaft 21 is a brake drum 22 that is a second brake member facing the brake shoe 20 in the axial direction. Are combined. The brake shaft 21 and the brake drum 22 in the normal state are pressed toward the electric motor device 18 by the spring 23. Therefore, the brake device 19 is turned on by the pressure contact between the brake shoe 20 and the brake drum 22. Accordingly, the drive shaft 14 of the electric motor device 18 at this time is not rotated by the braking force of the brake device 19.

  On the other hand, when the solenoid 24 arranged in the brake device 19 is energized, the brake shaft 21 and the brake drum 22 slide in a direction away from the electric motor device 18 against the spring 23 by the magnetic force of the solenoid 24. For this reason, the pressure contact between the brake shoe 20 and the brake drum 22 is released, and the brake device 19 is turned off. Therefore, at this time, the drive shaft 14 of the electric motor device 18 can be rotated by energizing the coil 25.

  When the solenoid 24 is energized as described above, the brake device 19 is turned off. When the energization is stopped, the brake device 19 is turned on, so that the brake device 19 is electrically turned on and off. ing.

  Of the left and right building housings 3 shown in FIG. 1, in one of the building housings 3, the shutter curtain 1 is opened and moved upward with respect to the doorway 2, closed and moved downward, and stopped. An operating device 30 for performing the above is attached. The operation device 30 is provided with an “open” button, a “close” button, and a “stop” button. Further, the shutter curtain 1 occupies most of the area of the shutter curtain 1, and a curtain body 1A whose upper end is coupled to the winding shaft 11 and a seat plate 1B provided at the lower end of the curtain body 1A. It has become. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically.

  The curtain main body 1A is an opening / closing body main body in the present embodiment, and the seat plate 1B is an end member in the present embodiment.

  When the shutter curtain 1 reaches the height position of the lintel 16 disposed on the ceiling member 5 as described above, or when the occupant plate 1B has the lintel 16 and the floor 4 as shown in FIG. When the “close” button is operated when the shutter curtain 1 that has reached a halfway position is in a half-closed state (half-open state), the control device 27 that receives a signal from the “close” button causes the brake device 19 to Since the solenoid 24 is energized, the brake device 19 is turned off. Thus, the shutter curtain 1 is rotated downward from the take-up shaft 11 by rotating the take-up shaft 11 and the drive shaft 14 by the dead weight of the shutter curtain 1, and the shutter curtain 1 that is closed and moved thereby is brought into the fully closed position. Upon reaching, the control device 27 shown in FIG. 1 that receives a signal from a sensor (not shown) that detects this fully closed position cuts off the energization of the solenoid 24, and the brake device 19 is turned on by the spring 23 ". In addition, when the shutter curtain 1 is fully closed, or the shutter curtain 1 is in a half-open state where the seat plate 1B reaches the midway position between the lintel 16 and the floor 4 as shown in FIG. When the “open” button is operated in the (semi-closed state), the control device 27 that receives a signal from the “open” button energizes the solenoid 24 of the brake device 19, so that the brake device 19 is turned off. The control device 27 energizes the coil 25 of the electric motor device 18. For this reason, the drive shaft 14 rotates in the reverse direction, and this rotation is transmitted to the winding shaft 11 via the driving force transmission means 12 described above, and the shutter curtain 1 is moved to the winding shaft 11 by the reverse rotation of the winding shaft 11. It is rolled up and moved. When the shutter curtain 1 reaches the fully open position, the control device 27 that receives a signal from a sensor (not shown) that detects the fully open position cuts off the energization of the solenoid 24 and the brake device 19 is turned on by the spring 23. The energization of the coil 25 is cut off by the control device 27.

  Further, when the “stop” button is operated while the shutter curtain 1 is being closed and moved, the control device 27 that receives a signal from the “stop” button cuts off the energization of the solenoid 24. Is turned on by the spring 23, and the shutter curtain 1 stops at that position. Further, when the “stop” button is operated while the shutter curtain 1 is being opened and moved, the energization to the solenoid 24 is cut off by the control device 27 that receives a signal from the “stop” button. Is turned on by the spring 23, and the control device 27 cuts off the energization of the coil 25 of the electric motor device 18, whereby the shutter curtain 1 stops at that position.

  As shown in FIG. 1, an electric circuit such as a relay circuit or a computer control device 27 is attached to the switch 13, and this control device 27 includes the electric motor device 18 of the switch 13 and The brake device 19 is electrically controlled. The control device 27 may be attached to a member, means, device, or the like different from the opening / closing device 13, and the arrangement location thereof is arbitrary.

  As can be seen from the above description, the floor 4, the guide rail 6, the shutter box 8, and the lintel 16 are not moved with respect to the shutter curtain 1 that opens and closes. The guide rail 6, the shutter box 8, the lintel 16, and the like are immovable members for the shutter curtain 1.

  In addition, the winding shaft 11 that rotates forward and backward as described above is provided with a return spring by a torsion coil spring or a mainspring spring in which a return force is accumulated during the closing movement of the shutter curtain 1, and the shutter curtain 1 is moved upward. The opening movement may be performed using the return force accumulated in the return spring as an auxiliary force.

  As shown in FIG. 3, a lever member 31 is disposed at the end of the brake shaft 21 opposite to the electric motor device 18 side. The lever member 31 penetrates the brake shaft 21 and includes a first portion 31A and a second portion 31B that are divided with the brake shaft 21 as a boundary. A first bent portion 31C is formed in the first portion 31A, and a second bent portion 31D is formed in the second portion 31B. When a load is applied to the first portion 31A in the A direction, that is, the side opposite to the electric motor device 18 side, the first portion 31A swings in the A direction with the second bent portion 31D as a fulcrum. 21 and the brake drum 22 slide in the A ′ direction which is the same direction as the A direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24.

  The load in the A direction acting on the first portion 31 </ b> A in this way is performed by an automatic closing device 32 described later attached to the opening / closing machine 13. As will be described later, the automatic closing device 32 is a mechanical control device for mechanically controlling the opening / closing machine 13 serving as a driving device for driving the shutter curtain 1.

  Further, when a load in the same direction as the A direction acts on the second portion 31B, the second portion 31B swings in the same direction as the A direction with the first bent portion 31C as a fulcrum. 21 and the brake drum 22 slide in the A ′ direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24 at this time.

  Thus, applying a load in the same direction as the A direction to the second portion 31B can be performed manually. For this reason, the switch 13 according to this embodiment can turn off the brake device 19 by manual operation. Note that the second portion 31B may be omitted leaving the second bent portion 31D.

  FIG. 4 shows that the obstacle 34 is mechanically detected (in other words, detected) when the seat plate 1B of the shutter curtain 1 is in contact with the obstacle 34 shown in FIG. A mechanical obstacle detection device (in other words, a mechanical obstacle detection device) 35 is shown. The mechanical obstacle detection device 35 includes a locking wire 36 serving as a bridging member having a portion spanned between the lintel 16 serving as the stationary member and the shutter curtain 1. One end of the flexible locking wire 36 is coupled, and the first processing device 37 that processes the one end is coupled to the other end of the locking wire 36. The second processing unit 38 processing the other end and the locking wire 36 are disposed in the middle of the length of the locking wire 36, and the locking wire 36 is mechanically moved when the shutter curtain 1 comes into contact with the obstacle 34. And, in other words, a mechanical coupling device 39 for mechanically coupling the shutter curtain 1 and the locking wire 36 to each other. The mechanical coupling device 39 is attached to the shutter curtain 1 as will be described later.

  The locking wire 36 serving as the above-described bridging member is also a string-like member and an elongated member in the shutter device before the repair according to the present embodiment.

  The first processing device 37, the second processing device 38, and the mechanical coupling device 39 are connected to each other by the lock wire 36, and therefore, mechanical obstacles including these devices 37 to 39 as constituent elements. The detection device 35 is a unit that is easy to handle.

  The first processing device 37 is provided with a rotatable reel 40, and the locking wire 36 is wound around the reel 40 to which one end of the locking wire 36 is coupled. A return spring 41 such as a mainspring spring is connected to the reel 40, and when the lock wire 36 rotates the reel 40 and is drawn out from the reel 40, a return force is accumulated in the return spring 41. When the locking wire 36 is slack, the reel 40 is rotated in the direction in which the locking wire 36 is wound by the return force accumulated in the return spring 41. For this reason, the first processing device 37 is a winding device for winding the lock wire 36 in a freely retractable manner in the shutter device before the repair according to the present embodiment.

  The second processing device 38 is provided with a rotating member 42, and the other end of the locking wire 36 is coupled to the rotating member 42 via a coil spring 43.

  In addition, the first processing device 37 and the second processing device 38 are disposed on the upper surface of the base member 44 that is fixedly disposed on the lintel 16 with bolts or welding. For this reason, the first processing device 37 and the second processing device 38 The processing device 38 is a unit structure 45 connected by a base member 44. Therefore, in order to perform the operation of laying the lock wire 36 between the lintel 16 and the shutter curtain 1, the operation of arranging the first processing device 37 and the second processing device 38 in the lintel 16 is a unit structure. The work 45 can be completed simply by performing the work of fixing and installing the object 45 to the lintel 16 with bolts or welding, and this work can be easily performed.

  Also, as described above, the other end of the locking wire 36 is coupled to the rotating member 42 of the second processing device 38 via the coil spring 43, as shown in FIG. The wire 36 is passed through the slit 17 of the lintel 16 disposed on the ceiling member 5 described above. That is, the lock wire 36 has a length that extends over the top and bottom of the ceiling member 5, and the lock wire 36 is inserted into the slit 17 of the lintel 16 without contacting the lintel 16. Yes.

  The arrangement positions of the first processing device 37 and the second processing device 38 in the lintel 16 can be adjusted in the thickness direction of the shutter curtain 1. This will be described. As shown in FIG. 4, the machine casing 46 of the first processing device 37 is a fastening device such as a screw inserted into a long hole 47 formed in the side surface portion 44 </ b> A of the base member 44. 48 is attached to this side surface portion 44A. Therefore, the attachment position of the first processing device 37 on the base member 44 can be adjusted in the thickness direction of the shutter curtain 1 by the length of the long hole 47. Further, the substrate portion 49A of the machine casing 49 of the second processing apparatus 38 is attached to the base member 44 with a fastening tool 51 such as a screw inserted into a long hole 50 formed in the substrate portion 49A. Therefore, the mounting position of the second processing device 38 on the base member 44 can be adjusted in the thickness direction of the shutter curtain 1 by the length of the long hole 50.

  In addition, the structure which can adjust the arrangement position of the 1st processing apparatus 37 and the 2nd processing apparatus 38 in the lintel 16 to the thickness direction of the shutter curtain 1 is not limited to the system of the long holes 47 and 50, for example, Further, a screw feeding method using rotation of a screw shaft member such as a bolt, or a slide-and-stop method in which a plurality of stop members are arranged in the middle of the guide groove may be used.

  The case 55 of the mechanical coupling device 39 shown in FIG. 4 has a back surface portion 55A and an upper surface portion 55B shown in FIG. 4, and a front surface portion 55C shown in FIG. That is, in FIG. 4 and FIG. 5, the front and back of the mechanical coupling device 39 are reversed. FIG. 6 is a front sectional view of FIG. 5 showing the structure of the mechanical coupling device 39 housed in the case 55. As shown in FIG. 4, the upper surface portion 55B of the case 55 is formed with two holes 56 and 57 through which the locking wire 36 enters and exits. As shown in FIG. Two rotatable rollers 58 and 59 for guiding the lock wire 36 are arranged in the interior of the 55 so as to be separated from each other in the width direction of the shutter curtain 1, and together with these rollers 58 and 59, the lock wire 36. A plurality of guide members 60 such as pins for guiding them are also arranged.

  Further, in the case 55, a first lever member 61 serving as a sandwiching member for sandwiching a portion (a folded portion described later) 36A between the rollers 58 and 59 of the lock wire 36 from above and below. The second lever member 62 is disposed, and the lever members 61 and 62 can swing up and down around the same fulcrum shaft 63. A downward pressing force by a torsion coil spring 64 is acting on the upper first lever member 61, and the first lever member 61 is provided with a convex portion 61A that is curved downward. When the portion 61A hits the portion 36A of the locking wire 36, the downward swing limit of the first lever member 61 around the fulcrum shaft 63 is defined. Further, in order to prevent the first lever member 61 from largely swinging downward about the fulcrum shaft 63 when the portion 36A is relaxed, the case 55 includes a first lever member. A stop member 65 is fixed by a pin or the like for receiving the end of 61 opposite to the fulcrum shaft 63 side.

  A weight member 66 is attached to an end of the lower second lever member 62 opposite to the fulcrum shaft 63 side. Due to the weight of the weight member 66, the fulcrum shaft 63 is attached to the second lever member 62. A downward swinging force is acting around the center. Further, the second lever member 62 is provided with a convex portion 62A that is curved upward.

  Further, friction members 67 and 68 are provided on the lower surface of the upper first lever member 61 and the upper surface of the lower second lever member 62, in other words, on the surfaces of the lever members 61 and 62 facing each other. It is attached. When the first lever member 61 and the second lever member 62 pinch and lock the portion 36A of the lock wire 36, the friction members 67 and 68 generate a friction force between the portion 36A and the friction member 67 and 68. It is intended to increase the size and secure the lock. The upper first lever member 61 is formed with a downward projecting piece portion 61B. The projecting piece portion 61B and the back surface portion 55A of the case 55 provide two portions 36A for the locking wire 36. It is prevented that the lever members 61 and 62 are disengaged from each other. Further, the convex portion 62A of the second lever member 62 has the friction members 67 and 68 sandwiching the portion 36A of the locking wire 36 by the second lever member 62 swinging upward about the fulcrum shaft 63. Immediately before the attachment and locking, the portion 36A is pushed upward, whereby the portion 36A by the friction members 67 and 68 is clamped and the locking can be performed more reliably. Further, the lower second lever member 62 is provided with a convex portion 62B that is curved downward.

  FIG. 7 shows a front view when the mechanical coupling device 39 is attached to the shutter curtain 1. FIG. 8 is a cross-sectional view taken along line S8-S8 of FIG. 7. FIG. 8 shows the internal structure of the seat plate 1B of the shutter curtain 1 described above, and FIG. The mechanical coupling device 39 is indicated by a two-dot chain line. As described in FIG. 1, the shutter curtain 1 occupies most of the area of the shutter curtain 1, and is as shown in FIG. And a seat plate 1B provided at the lower end of the curtain body 1A and serving as an end member in the present embodiment. The seat plate 1B is fixed to the lower portion of the curtain body 1A, and a movable portion 70B is disposed below the fixed portion 70A and is movable in the vertical direction with respect to the fixed portion 70A. It consists of.

  Further, as shown in FIG. 7, the shutter curtain 1 of the shutter device before renovation according to the present embodiment has a curtain main part 71A and a curtain sub part 71B, and the curtain main part 71A is a curtain. The main body 1A is configured by a fixed portion 70A of the seat plate 1B, and the curtain sub-portion 71B is configured by a movable portion 70B of the seat plate 1B. Accordingly, the curtain sub-portion 71B is disposed at the end of the shutter curtain 1 on the closing side. The curtain main portion 71A is an open / close body main portion in the present embodiment, and the curtain sub-portion 71B is an open / close body sub-portion in the present embodiment.

  As shown in FIG. 8, the fixing portion 70 </ b> A of the seat plate 1 </ b> B is formed by inner and outer members 75 and 76 each having a box shape in cross section, and the outer member 75 is divided in the thickness direction of the shutter curtain 1. The two divided members 75A and 75B are arranged, and these divided members 75A and 75B are coupled to the lower end portion of the curtain body 1A by a coupling tool 77 such as a bolt or a nut. For this reason, the seat plate 1B can be attached to and detached from the curtain body 1A. Further, the lower surfaces of the inner and outer members 75 and 76 have an opening 78, and the upper end of the rising portion 79 of the movable portion 70B of the seat plate 1B is inserted into the internal space of the fixed portion 70A from the opening 78. At the upper end of the rising portion 79, extending portions 79A and 79B extending outward in the thickness direction of the shutter curtain 1 are formed, and these extending portions 79A and 79B are formed at the lower end of the inner member 76 of the fixing portion 70A. By riding on the upper surfaces of the formed projecting piece portions 76A and 76B, the lower limit of movement of the movable portion 70B relative to the fixed portion 70A is defined.

  A swinging member 81 that can swing up and down around a fulcrum shaft 80 extending in the width direction of the shutter curtain 1 is housed inside the fixed portion 70A. As shown in FIG. 14, the swinging member 81 is moved when the movable part 70B is lifted with respect to the fixed part 70A, that is, when the shutter curtain 1 in the closing movement is in contact with the obstacle 34 shown in FIG. When in contact, the extending portion 79A of the rising portion 79 of the movable portion 70B pushes up the protruding piece 81A of the swinging member 81, so that the swinging member 81 swings upward about the fulcrum shaft 80. Further, the fixed portion 70A and the movable portion 70B constituting the seat plate 1B have a length that extends to the left and right guide rails 6 shown in FIG. It has an extended length.

  The swing member 81 and the movable portion 70B are formed of an extrusion molded product or a pultruded molded product made of, for example, an aluminum alloy. When the lateral width of the entrance / exit 2 shown in FIG. 1 is large, it is difficult to form the swinging member 81 and the movable portion 70B with a single continuous extruded product or pultruded product. The swing member 81 and the movable portion 70B are formed by a plurality of extrusion molded products or pultruded molded products arranged in the length direction (width direction of the shutter curtain 1).

  FIG. 11 shows a case where the swing member 81 is formed by a plurality of molded products 82 arranged in the length direction. The swing member 81 is formed by connecting two molded products 82 adjacent to each other by connecting members 83 provided with portions 83A and 83B press-fitted into the molded products 82 at both ends. . The molded product 82 and the connecting member 83 may be joined by press-fitting as described above, using a fastener such as a screw, welding, or bonding. FIG. 12 shows a case where the movable portion 70B is formed by a plurality of molded products 84 arranged in the length direction. The movable portion 70B is formed by simply arranging a plurality of molded products 84 in the above-described length direction. Therefore, unlike the case of the swing member 81, the molded products 84 are not connected.

  Thus, even if the movable part 70B is formed by not connecting the molded products 84 to each other, thereby simplifying the structure of the movable part 70B and facilitating its manufacture, the swing member 81 extends to the left and right guide rails 6. Since it is in a continuous state, the movable portion 70B during the closing movement of the shutter curtain 1 no matter where the obstacle 34 shown in FIG. 1 exists between the left and right guide rails 6. Among the plurality of molded products 84 forming the one, the one that the obstacle 34 hits or the two molded products 84 that are adjacent to each other are raised with respect to the fixing portion 70A, whereby the swinging member 81 is moved. It can be swung upward.

  As shown in FIG. 7, the mechanical coupling device 39 described in FIG. 4 is incorporated in the fixing portion 70 </ b> A of the seat plate 1 </ b> B. That is, the mechanical coupling device 39 is disposed on the fixed portion 70A among the curtain main body 1A constituting the curtain main portion 71A described above of the shutter curtain 1 and the fixed portion 70A of the seat plate 1B. FIG. 13 is a cross-sectional view taken along line S13-S13 of FIG. 7, and is a cross-sectional view of the seat plate 1B at a portion where the mechanical coupling device 39 is disposed. As shown in FIG. 13, the upper and front parts of the inner and outer members 75 and 76 forming the fixing part 70 </ b> A of the seat plate 1 </ b> B have positions corresponding to the arrangement position of the mechanical coupling device 39. , An opening 90 is formed by notching, and a mechanical coupling device 39 is inserted into the opening 90 from above and coupled to the fixing portion 70A.

  The protruding piece 81A of the swinging member 81 that is swingable in the vertical direction around the fulcrum shaft 80 has a position corresponding to the downward convex portion 62B of the lower second lever member 62 shown in FIG. The pressing member 91 is attached. For this reason, during the closing movement of the shutter curtain 1, the movable portion 70B of the seat plate 1B comes into contact with the obstacle 34 that exists in the lower side in the closing movement direction, and as described with reference to FIG. When the extending portion 79A of the movable portion 70B swings the swinging member 81 upward about the fulcrum shaft 80, as shown in FIG. 15, the pressing member 91 presses the convex portion 62B. The second lever member 62 swings upward about the fulcrum shaft 63. Accordingly, the friction member 68 attached to the second lever member 62 pushes up the portion 36A between the roller 58 and the roller 59 of the locking wire 36 upward.

  By this push-up, the upper first lever member 61 swings upward about the fulcrum shaft 63 via the friction member 67 attached to the first lever member 61, and this upward swing As a result, the torsion coil spring 64 is compressed, so that the portion 36A between the roller 58 and the roller 59 of the lock wire 36 is clamped with a large load from above and below by the friction members 67 and 68 of the two lever members 61 and 62. By this clamping, the portion 36A of the lock wire 36 is locked, and the shutter curtain 1 and the lock wire 36 are mechanically coupled by the mechanical coupling device 39 by this locking. Become.

  As shown in FIG. 13, when the movable part 70B of the seat plate 1B reaches the lowest position with respect to the fixed part 70A, the protruding piece 81A of the swinging member 81 extends from the movable part 70B. By hitting the portion 79A, the downward swing of the swing member 81 about the fulcrum shaft 80 is restricted.

  As described above, when the shutter curtain 1 that is being closed is in contact with the obstacle 34, the friction member 67, 68 of the two lever members 61, 62 causes a large load on the portion 36A of the lock wire 36. In order to be locked, before the shutter curtain 1 comes into contact with the obstacle 34, in other words, when the movable part 70B of the seat plate 1B reaches the lowest position with respect to the fixed part 70A, It is important that the mechanical coupling device 39 is disposed at an appropriate vertical position with respect to the pressing member 91 of the swing member 81. Arranging the mechanical coupling device 39 at an appropriate vertical position with respect to the pressing member 91 of the swinging member 81 means that the mechanical coupling device 39 is attached to the fixing portion 70A of the seat plate 1B. That is, the coupling device 39 is attached to an appropriate vertical position in the fixing portion 70A. The present embodiment is devised so that the mechanical coupling device 39 can be attached to an appropriate vertical position in the fixing portion 70A.

  Next, this device will be described. As shown in FIG. 4, protrusions 55D are formed on both side surfaces of the case 55 of the mechanical coupling device 39, and the mechanical coupling device 39 is seated using these protrusions 55D. It is attached to the fixing portion 70A of the plate 1B. Since the mounting structure using these protrusions 55D is the same, the mounting structure for one protrusion 55D will be described with reference to FIG.

  A base member 92 is coupled to the inner upper surface of the fixing portion 70A by a fastening tool 93 such as a rivet. The base member 92 is formed on the above-described inner and outer members 75 and 76 forming the fixing portion 70A. A screw shaft member 95 that penetrates the holes 94A and 94B and protrudes upward from the fixing portion 70A is provided. After inserting one or a plurality of washers 96 into the screw shaft member 95, the screw shaft member 95 is inserted into the hole 55E of the projecting piece 55D. By changing the number of washers 96 inserted into the screw shaft member 95 or not inserting the washers 96 into the screw shaft member 95, the vertical arrangement position of the mechanical coupling device 39 in the fixing portion 70A is adjusted. Become. Thereby, the arrangement position of the mechanical coupling device 39 can be set to an appropriate vertical position with respect to the pressing member 91 of the swing member 81.

  In order to be able to confirm whether or not the mechanical coupling device 39 is arranged at an appropriate vertical position with respect to the pressing member 91 of the swinging member 81 as shown in FIG. In addition, a window hole 55F is formed in the front portion 55C of the case 55 of the mechanical coupling device 39. From the window hole 55F, when the movable portion 70B of the seat plate 1B reaches the lowest position with respect to the fixed portion 70A, the friction member 68 of the lower second lever member 62 described above and the lock wire 36 The distance in the vertical direction between the portion 36A described above can be checked, and when the vertical distance becomes a value within a predetermined appropriate range, the nut 97 shown in FIG. The screw shaft member 95 is screwed and tightened. Thereby, the mechanical coupling device 39 is fixed to the fixing portion 70A of the seat plate 1B. Then, the window hole 55F is shielded with a shielding member such as a tape to prevent dust and the like from entering the inside of the case 55.

  As a result, the mechanical coupling device 39 is attached to an appropriate vertical position in the fixing portion 70A. As a result, when the shutter curtain 1 moving in a closed state comes into contact with the obstacle 34, the mechanical coupling device 39 is mechanically coupled. The friction members 67 and 68 of the two lever members 61 and 62 provided in the device 39 can lock the portion 36A of the locking wire 36 with a large load.

  As described above, the structure for setting the arrangement position of the mechanical coupling device 39 to an appropriate vertical position with respect to the pressing member 91 of the swinging member 81 is not limited to the above-described structure.

  FIG. 10 shows a structure according to another method. In the structure of FIG. 10, a nut 98 is used instead of the washer 96 of FIG. When the nut 98 is rotated, the nut 98 moves up and down little by little along the screw shaft member 95. Therefore, the arrangement position of the mechanical coupling device 39 is changed according to the height position of the nut 98. The height position of the mechanical coupling device 39 in the fixed portion 70A can be finely adjusted.

  The number of nuts 98 may be one. However, in FIG. 10, two nuts 98A and 98B are used, and these nuts 98A and 98B can press one nut against the other nut so that the height of the nuts 98A and 98B in the screw shaft member 95 can be increased. It is a double nut that can fix the position. For this reason, the arrangement position of the mechanical coupling device 39 can be more reliably fixed.

  As described above, the work for attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B is performed by using the shutter curtain 1 of the shutter device before the repair according to the present embodiment before the repair according to the present embodiment. This is performed after the opening and closing movement can be made up and down along the guide rails 6 attached to the left and right building frames 3 shown in FIG. That is, the installation work of the shutter device itself excluding the mechanical obstacle detection device 35 described above with reference to FIG. 4 is performed first, and then the installation work of the mechanical obstacle detection device 35 is performed. The installation work of the mechanical obstacle detection device 35 includes the work of attaching the unit structure 45 to the lintel 16 and the work of attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B. Of the work of attaching the unit structure 45 to the lintel 16 and the work of attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B, either work may be performed first, and these work are performed simultaneously ( Including the case of being said to be substantially simultaneous).

  When performing the installation work of the mechanical obstacle detection device 35 in this way, the opening 90 and the like for arranging and attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B are previously installed. It is preferable to form in a factory.

  In the shutter device before renovation according to the present embodiment, as described above, the mechanical obstacle detection device including the lock wire 36, the first processing device 37, the second processing device 38, and the mechanical coupling device 39. Since 35 is a unitized unit, the installation work for the mechanical obstacle detection device 35 transported from the factory to the building where the shutter device according to the present embodiment is installed can be easily performed. The first processing device 37 and the second processing device 38 form a unit structure 45, and only the first processing device 37 and the second processing device 38 are unitized. The operation | work which attaches the 2nd processing apparatus 38 to the lintel 16 can also be performed easily.

  As described above, when the mechanical coupling device 39 is attached to the fixed portion 70A of the seat plate 1B, the first processing device 37 and the second processing device 38 of FIG. The locking wire 36 whose both ends are coupled to each other is bridged between the lintel 16 and the shutter curtain 1. Further, since the lock wire 36 is folded back by the mechanical coupling device 39, as shown in FIG. 1, the first portion 36B extending from the lintel 16 to the shutter curtain 1, and the shutter curtain 1 The second portion 36 </ b> C extends from the lintel 16 to the lintel 16. The portion 36 </ b> A shown in FIGS. 6 and 15 corresponding to the mechanical coupling device 39 of the locking wire 36 becomes a folded portion of the U-shaped locking wire 36.

  When the shutter curtain 1 is closed and moved by its own weight, the lock wire 36 is rotated from the reel 40 by rotating the reel 40 of the first processing apparatus by the weight of the shutter curtain 1, thereby The lengths of the first portion 36B and the second portion 36C are increased. Further, when the shutter curtain 1 is opened and moved upward by the rotation of the drive shaft 14 of the opening / closing device 13 described above, the locking wire 36 is slackened. Therefore, the return force of the return spring 41 described above is opposite to the above. The locking wire 36 is taken up by the reel 40 that rotates in the direction, whereby the length of each of the first portion 36B and the second portion 36C is shortened. For this reason, the locking wire 36 follows the opening / closing movement of the shutter curtain 1.

In the shutter device before renovation according to the present embodiment, as can be seen from FIG. 1, the unit structure 45 including the mechanical coupling device 39, the first processing device 37, and the second processing device 38 has the width of the shutter curtain 1. The mechanical coupling device 39 and the unit structure 45 that are not arranged at the central position B of the direction and constitute the mechanical obstacle detection device 35 described above are arranged in the width direction of the shutter curtain 1 from the central position B. It is arrange | positioned in the position displaced to one side of these. This displaced position is a position on the side where the above-described opening / closing device 13 serving as a driving device for driving the shutter curtain 1 is disposed.
Further, as shown in FIG. 1, the extending direction of the first portion 36B and the second portion 36C of the locking wire 36 is a vertical direction (substantially a vertical direction) along the curtain body 1A of the shutter curtain 1. The first portion 36B and the second portion 36C are parallel to each other (including what can be said to be substantially parallel to each other).

  As shown in FIGS. 2 and 4, the first portion 36 </ b> B and the second portion 36 </ b> C of the lock wire 36 are disposed at the inner position of the slit 17 for hanging the shutter curtain in the lintel 16. For this reason, the first portion 36 </ b> B and the second portion 36 </ b> C do not interfere with the lintel 16. In other words, in the first processing device 37 and the second processing device 38 arranged on the upper surface of the lintel 16, the position of the portion where the first portion 36 </ b> B and the second portion 36 </ b> C of the locking wire 36 hang down is the lintel 16. Is arranged on the lintel 16 so as to be positioned above the internal position of the slit 17 for hanging the shutter curtain.

  Further, as shown in FIG. 13, the arrangement position of the mechanical coupling device 39 in the fixing portion 70A of the seat plate 1B is not the central position in the thickness direction of the shutter curtain 1, but the thickness of the shutter curtain 1 from this central position. The position is displaced to one side in the vertical direction. For this reason, the lock wire 36 is paraphrased to a position in the shutter curtain 1 that does not interfere with the curtain body 1A described above, as shown in FIG. 8, for both the first portion 36B and the second portion 36C. The shutter body 1 is disposed at a position away from the curtain body 1 </ b> A in the thickness direction of the shutter curtain 1. That is, since the curtain main portion 71A described above is configured by the curtain body 1A and the fixed portion 70A of the seat plate 1B, both the first portion 36B and the second portion 36C of the locking wire 36 are It is arranged at a position away from the curtain main part 71A (curtain body 1A) excluding the fixing part 70A where the mechanical coupling device 39 is arranged in the thickness direction of the shutter curtain 1.

  A portion of the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed is a curtain main body 1A, and the curtain main body 1A is a large portion that occupies most of the area of the shutter curtain 1. For this reason, as described above, both the first portion 36B and the second portion 36C of the locking wire 36 are separated from the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed. Since it is arranged at a position away from the thickness direction and does not interfere with the curtain main part 71A, it is a bridge member that is bridged between the lintel 16 and the shutter curtain 1, and this embodiment The locking wire 36 that is a mechanical member in the embodiment does not hinder the opening / closing movement of the shutter curtain 1.

  Further, as described above, the movable portion 70B of the seat plate 1B forms the curtain sub-portion 71B. As shown in FIG. 8, the thickness direction dimension of the shutter curtain 1 with respect to the movable portion 70B. Is W1. The dimension in the thickness direction of the shutter curtain 1 for the fixing portion 70A of the seat plate 1B that constitutes a part of the curtain main portion 71A described above is W2, and this W2 is smaller than W1. The locking wire 36 is disposed within the range of W1 and within the range of W2. Since the movable portion 70B forms the curtain sub portion 71B, the lock wire 36 is disposed within the shutter curtain thickness direction dimension W1 of the curtain sub portion 71B, and W1. Is a dimension that defines the overall thickness dimension of the shutter curtain 1, so that the locking wire 36 is disposed within the entire thickness dimension of the shutter curtain 1.

  Therefore, the lock wire 36 is disposed along the curtain body 1A of the shutter curtain 1, and thereby the first portion 36B and the second portion 36C of the lock wire 36 are disposed at positions that do not interfere with the curtain body 1A. Moreover, it can suppress that the whole thickness dimension of the shutter curtain 1 containing this wire 36 for a lock | rock becomes large.

  Even when W1 is equal to W2 (including a case where there is some difference and it can be said that it is substantially equal), the entire thickness of the shutter curtain 1 including the lock wire 36 is also included. An increase in the size can be suppressed.

  Further, in the shutter device before renovation according to the present embodiment, as described with reference to FIG. 4, the arrangement positions of the first processing device 37 and the second processing device 38 in the lintel 16 are the shutter curtains by the long holes 47 and 50. The main part of the curtain excluding the fixing part 70A where the mechanical coupling device 39 is arranged is used for both the first part 36B and the second part 36C of the locking wire 36 because it can be adjusted in the thickness direction of 1. It can arrange | position more reliably in the position away in the thickness direction of the shutter curtain 1 from 71A. Also. By adjusting the arrangement positions of the first processing device 37 and the second processing device 38 in the lintel 16 separately for the first processing device 37 and the second processing device 38, the first portion 36B and the second portion 36C. Can also be performed for separating the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed in the thickness direction of the shutter curtain 1 by the same distance.

  FIG. 16 shows the internal structure of the second processing device 38. As described above, the second processing device 38 is provided with the rotating member 42 in which the end of the locking wire 36 is coupled via the coil spring 43. The turning direction of the turning member 42 is a vertical direction centering on a horizontal central axis 42A. A return spring 100 such as a mainspring spring is disposed behind the rotating member 42. The return force of the return spring 100 is such that the rotation member 42 is rotated in the direction C, that is, the rotation member 42 is rotated in the direction in which the second portion 36C of the lock wire 36 is pulled up. It acts on the moving member 42. The rotating member 42 is formed with an arc-shaped long hole 42B centered on the central axis 42A, and the stop member 101 attached to the machine frame 49 of the second processing device 38 is inserted into the long hole 42B. The rotation amount of the rotation member 42 is restricted to a certain amount by the stop member 101.

  Gear teeth 42C are formed on a part of the outer peripheral portion of the rotating member 42. For this reason, the rotating member 42 is a sector gear formed with a part of the gear teeth 42C. The gear teeth 42 </ b> C are provided on the side of the rotating member 42 in the thickness direction of the shutter curtain 1 (including those that can be said to be substantially in the thickness direction; the same applies hereinafter). In addition, two rotary dampers 102 are disposed in the second processing device 38, and these dampers 102 include a pinion gear 103 that meshes with the gear teeth 42 </ b> C of the rotating member 42. A plurality of blades disposed inside the damper 102 are attached to the rotation center shaft 104 of the pinion gear 103 via a one-way clutch, and the pinion gear 103 and the center shaft are rotated by the rotation member 42 rotating in the C direction. When 104 rotates in the E direction, each blade rotates in the viscous fluid filled in the damper 102 via the one-way clutch. For this reason, the rotation member 42 rotates in the C direction at a low speed by the resistance force of the viscous fluid. On the other hand, when the rotating member 42 rotates in the D direction opposite to the C direction and the pinion gear 103 and the central shaft 104 rotate in the F direction, the rotation in this direction is caused by the cutting action of the one-way clutch. Is not transmitted to the blade. For this reason, the rotation member 42 can rotate at high speed in the D direction.

  The number of dampers 102 may be one. However, by using a plurality of dampers 102 as in the present embodiment, the above-described resistance force that rotates the rotating member 42 in the C direction at a low speed can be increased, and thus the C of the rotating member 42 can be increased. The speed in the direction can be reduced to the desired speed.

  In addition, the rotation member 42 is a sector gear partially formed with gear teeth 42 </ b> C, so that the rotation member 42 is more than the case where the rotation member 42 is a gear formed with gear teeth all around. The overall vertical dimension of the can be reduced. Accordingly, the vertical dimension of the second processing apparatus 38, and hence the vertical dimension of the unit structure 45 configured by the first processing apparatus 37 and the second processing apparatus 38 can be reduced. As shown, the unit structure 45 can be effectively arranged in a space having a small vertical dimension between the lintel 16 and the shutter box 8 described above.

  Further, the rotating member 42 is a sector gear partially formed with gear teeth 42C, and the gear teeth 42C are provided on the rotating member 42 in the thickness direction side of the shutter curtain 1 as described above. Since the arrangement position of the rotation member 42 in the second processing device 38 can be set to a high position, the shutter curtain 1 is opened to the fully open position without the rotation member 42 interfering with the seat plate 1B. It can be moved.

  The gear teeth 42C are formed on the opposite side of the rotating member 42 from the shutter curtain 1 side, and a recess 42D in which the gear teeth 42C are not formed is formed on the same side of the rotating member 42 as the shutter curtain 1. Therefore, the rotating member 42 can be prevented from interfering with the seat plate 1B when the shutter curtain 1 is fully opened. Also, when the shutter curtain 1 is opened and closed, it can be rotated. It is possible to prevent the moving member 42 from interfering with the curtain body 1A.

  In the present embodiment, as shown in FIG. 4, the connecting portion N <b> 1 between the coil spring 43 and the second portion 36 </ b> C of the locking wire 36 is the connecting portion N <b> 2 between the rotating member 42 and the coil spring 43. With respect to the shutter curtain 1 side. For this reason, even if the shutter curtain 1 reaches the fully open position, the coil spring 43 can be prevented from coming into contact with the slats forming the curtain body 1A, and the coil spring 43 is connected to the rotating member 42 and the coil spring. Since it can suppress swinging to the shutter curtain 1 side centering on the connection part N2 with 43, it can also prevent that the coil spring 43 contacts the slat which forms the curtain main body 1A by this suppression.

  Further, as shown in FIG. 16, a micro switch 170 as a contact-type switch means is fixedly arranged on the upper part of the machine casing 49 of the second processing device 38. The microswitch 170 is provided with an actuating member (actuator) 171 that is biased in a direction protruding from the microswitch 170 by a spring. The operating member 171 is fixedly disposed on the machine casing 49 of the device 38 so as to protrude downward. The lead wire 172 of the micro switch 170 is connected to the control device 27 described above. On the other hand, a dog member 173 is attached to an outer peripheral surface 42D of a portion of the rotating member 42 where the gear teeth 42C are not formed.

  The operating member 171 of the micro switch 170 is in contact with the outer peripheral surface 42 </ b> D of the rotating member 42 as long as the shutter curtain 1 that is being closed is not in contact with an obstacle. On the other hand, the shutter curtain 1 in the closed movement comes into contact with the obstacle, and the operation member 171 comes into contact with the dog member 173 by the rotation of the rotation member 42 in the D direction by the operation of the mechanical coupling device 39. It has become.

  For this reason, in this embodiment, the micro switch 170 that is an electric switch is a tension force detecting means that detects that the tension force is applied to the locking wire 36 by the operation of the mechanical coupling device 39 via the rotating member 42. The locking wire 36 is a tension acting member. And in this embodiment, when the seat board 1B of the shutter curtain 1 contacts the obstacle 34 shown in FIG. 1 during the closing movement of the shutter curtain 1 by the mechanical obstacle detection device 35 and the micro switch 170. The electric obstacle detecting device is an electric obstacle detecting means for detecting the obstacle 34 electrically.

  As described above, the mechanical coupling device 39 has a longer shutter shutter 1 than the micro switch 170 until the shutter curtain 1 reaches the fully closed position from the state where the shutter curtain 1 reaches the fully open position (in other words, always). It is located on the closing movement direction side, that is, on the lower side.

  As shown in FIG. 2, the microswitch 170 is based on the central position in the thickness direction (front-rear direction) of the shutter curtain 1 fed out from the winding shaft 11, that is, on the winding shaft 11 side from this central position. Is disposed on the control device 27 side. That is, the micro switch 170 is disposed on the same side as the control device 27 with respect to the center position in the thickness direction of the shutter curtain 1. Therefore, maintenance work such as repair and replacement of the micro switch 170 and the control device 27 is facilitated.

  FIG. 17 is a front view showing the internal structure of the automatic closing device 32 shown in FIGS. 1 to 3, and FIG. 18 is a plan view showing the internal structure of the automatic closing device 32. When a disaster such as a fire occurs, the automatic closing device 32 automatically controls the shutter 13 shown in FIGS. 1 to 3 to mechanically control the shutter curtain 1 that has reached the fully open position. It is intended to close the doorway 2 in FIG. 1 with a shutter curtain 1 having smoke resistance and / or fire resistance. The automatic closing device 32 is attached to the opening / closing machine 13 by a bracket portion 110A of FIG. 17 provided on the machine casing 110 of the automatic closing device 32. As shown in FIG. 18, each of the first control wire 111, the second control wire 112, and the third control wire 113 for controlling the automatic closing device 32 up to the automatic closing device 32. The end of is extended. These control wires 111 to 113 are flexible string-like members, and are also elongated members, like the aforementioned locking wires 36.

  Further, these control wires 111 to 113 are slidably inserted into the flexible outer cables 114 to 116. For this reason, the control wires 111 to 113 are protected by the outer cables 114 to 116.

  As shown in FIG. 16, the first control wire 111 extends to the second processing device 38, and the end of the first control wire 111 is connected to the rotating member 42 of the second processing device 38. It is connected. As shown in FIG. 2, the first processing wire 111 and the outer cable 114 into which the first control wire 111 is inserted are part of the second processing device 38. The above-described unit structure 45 and the switch 13 are wired in the ceiling space 7 where they are arranged, and avoid the object 117 existing in the ceiling space 7, in other words, bypass the object 117. The first control wire 111 and the outer cable 114 are wired in a space where wiring is possible. Note that this space may exist in advance, and when the first control wire 111 and the outer cable 114 are wired, a part of the object 117 is cut out or a hole is provided in the object 117. Or formed.

  Thus, it is possible to wire the first control wire 111 and the outer cable 114 without interfering with the object 117 because the first control wire 111 and the outer cable 114 have flexibility. is there. The object 117 may be related to the building itself in which the shutter device of the present embodiment is installed, or may be related to a part of the shutter device of the present embodiment, for example, the shutter box 8 described above.

  Further, as shown in FIG. 16, the first control wire 111 and the outer cable 114 are inclined with respect to the second processing device 38 in the vicinity of the second processing device 38. Thus, the first control wire 111 and the outer cable 114 do not interfere with the coupling member 26 that couples the lintel 16A of the lintel 16 illustrated in FIG. Yes.

  From the above, in the shutter device before renovation according to the present embodiment, the locking wire 36 extending from the mechanical coupling device 39 in the opening movement direction of the shutter curtain 1 is an intermediate device (in other words, a relay device). The second processing device 38 is connected to the automatic closing device 32 via the first control wire 111.

  As shown in FIGS. 17 and 18, the machine casing 110 of the automatic closing device 32 is provided with two rising portions 110 </ b> B and 110 </ b> C that face each other, and formed on these rising portions 110 </ b> B and 110 </ b> C. A plate-like slide member 120 having a length straddling the two rising portions 110B and 110C is slidably inserted into the holes 110D and 110E. A spring 121 is wound around the outer periphery of the slide member 120. Due to the spring force of the spring 121, a forward force toward the rising portion 110B is constantly acting on the slide member 120. The direction of the forward force is a direction in which the first portion 31A of the lever member 31 provided in the opening / closing machine 13 described in FIG.

  As shown in FIG. 3 and FIG. 17, the actuating member 122 is attached to the bent portion 120 </ b> A that is bent downward at the front end of the slide member 120, and the first portion of the lever member 31. An actuated member 123 is erected and coupled to 31A. When the slide member 120 moves forward by the spring force of the spring 121, the load in the direction A shown in FIG. 3 is applied to the first portion 31A of the lever member 31 by the operating member 122 coming into contact with the operated member 123. It comes to work. As shown in FIG. 17, in the present embodiment, the actuating member 122 is the head 124 </ b> A of the bolt 124, and thus the bolt 124 is turned by bending the head 124 </ b> A. By moving forward and backward with respect to 120A, the distance between the actuating member 122 and the actuated member 123 can be adjusted to an appropriate dimension. After this adjustment, the lock nut 125 screwed into the bolt 124 is rotated, and the lock nut 125 is pressed against the bent portion 120A, whereby the position of the operating member 122 relative to the operated member 123 is adjusted. It can be fixed in an appropriate position.

  As shown in FIG. 18, a solenoid 126 is attached to the machine casing 110 of the automatic closing device 32, and a spring force of a spring 128 is applied to the plunger 127 of the solenoid 126 from the solenoid 126. It always works in the protruding direction. One end of an L-shaped bent lever member 129 that is rotatable about a central axis 129A is connected to the tip of the plunger 127 by a slide-type connecting portion 129B. A roller 130 is rotatably provided at the other end of the bent lever member 129.

  A concave portion 120 </ b> B is formed in the portion of the slide member 120 that faces the roller 130. A portion of the recess 120B on the backward side of the slide member 120 is an inclined surface 120C. In the automatic closing device 32, the spring 131 for applying a turning force in the G direction about the central axis 129A to the bending lever member 129 and the direction in which the plunger 127 protrudes from the solenoid 126 together with the spring 128 described above. And a spring 132 for rotating the bending lever member 129 in the G direction about the central axis 129A. The roller 130, 131, 132 is provided with a spring force so that the roller 130 in a normal state is provided. As shown in FIG. 18, the slide member 120 is engaged with the recess 120B, and the forward movement of the slide member 120 by the spring 121 is stopped by this engagement. Thus, the position of the front end of the slide member 120 when the forward movement is stopped by the roller 130 fitted into the recess 120B is the H position among the three positions H, I, and J shown in FIG.

  As shown in FIG. 18, the self-closing device 32 is provided with a microswitch 135, and this microswitch 135 is provided with an actuating member 136 biased in a direction protruding from the microswitch 135 by a spring. It has been. In addition, a dog member 137 is attached to the slide member 120 at a portion opposite to the concave portion 120 </ b> B, and the operating member 136 is in contact with the dog member 137.

  A connecting member 138 provided with a first connecting portion 138A and a second connecting portion 138B is connected to the slide member 120, and a connecting member 140 is connected to the tip of the plunger 127 of the solenoid 126, as described above. One end of the spring 132 is connected to the connecting member 140. The other end of the first control wire 111, which has one end connected to the rotating member 42 of the second processing device 38 shown in FIG. The end portion of the second control wire 112 is connected to the connecting portion 138 </ b> A, and the end portion of the third control wire 113 is connected to the connecting member 140 of the slide member 120. It is connected to the second connecting part 138B.

  Further, the second control wire 112 inserted into the outer cable 115 extends to the operating device 30 shown in FIG. 1, and the end of the second control wire 112 protruding from the outer cable 115. A manual operation member such as a lever member arranged in the operation device 30 is connected to the operation device 30. Further, the third control wire 113 inserted into the outer cable 116 extends from the above-described ceiling space 7 where the automatic closing device 32 is disposed to a position where it can be manually operated in the building. In this embodiment, as shown in FIG. 1, this position is an upper position of the entrance / exit 2 that has passed through the slit 17 of the lintel 16 from the ceiling space 7 and protrudes from the outer cable 116. A manual operation member 141 capable of manually pulling the third control wire 113 is coupled to the end of the third control wire 113, and this manual operation member 141 is a ring member in this embodiment. ing.

  In the building where the shutter device before renovation according to the present embodiment is installed, when a disaster such as a fire occurs when the shutter curtain 1 is fully open, a control from which a signal from a sensor that detects the disaster is input. Due to the device 27, the solenoid 126 of the automatic closing device 32 is energized and the solenoid 126 is energized, so that the plunger 127 of the solenoid 126 is retracted against the spring force of the spring 128. As a result, the bending lever member 129 rotates against the spring force of the springs 131 and 132 about the central axis 129A in the direction opposite to the G direction in FIG. The state at this time is shown in FIG. When the bending lever member 129 rotates about the central axis 129 </ b> A in the direction opposite to the G direction, the roller 130 of the bending lever member 129 escapes from the recess 120 </ b> B of the sliding member 120. The forward movement is stopped when the front end of the connecting member 138 comes into contact with the above-described rising portion 110B of the machine casing 110 of the automatic closing device 32. The position of the front end of the slide member 120 at this time is the I position which is the foremost position among the three positions H, I and J shown in FIG. 18 as shown in FIG.

  Further, when the slide member 120 moves forward, the operation member 136 of the micro switch 135 is disengaged from the position of the dog member 137 attached to the slide member 120, so that the operation member 136 protrudes and moves by the biasing force of the spring. In response to a signal from the switch 135, the control device 27 stops energizing the solenoid 126.

  When the energization of the solenoid 126 is stopped, the plunger 127 projects and moves from the solenoid 126 by the spring force of the spring 128, and the bending lever member 129 is centered on the central axis 129A by the spring force of the springs 131 and 132 in the G direction of FIG. To turn. Since the slide member 120 at this time has advanced to the movement limit where the front end of the slide member 120 reaches the I position, the roller 130 of the bending lever member 129 slides as shown in FIG. It hits the aforementioned inclined surface 120C of the member 120. For this reason, the protruding movement of the plunger 127 and the rotation of the bending lever member 129 about the central axis 129A in the G direction stop halfway.

  When the slide member 120 of the automatic closing device 32 advances as described above, the operating member 122 provided at the front end of the slide member 120 is connected to the opening / closing machine 13 via the operated member 123 shown in FIG. In order to press the first portion 31A of the lever member 31 in the direction A in FIG. 3, as described above, the first portion 31A swings in the A direction using the second bent portion 31D of the lever member 31 as a fulcrum. As a result, the brake shaft 21 and the brake drum 22 of the brake device 19 of the opening / closing machine 13 slide in the A ′ direction, which is the same direction as the A direction, so that the brake device 19 that has been turned on until then is turned off. Become. For this reason, the shutter curtain 1 that is fully open is closed and moved downward while rotating the winding shaft 11 by the weight of the seat plate 1B and the like below the winding shaft 11. The above-described drive shaft 14 of the opening / closing machine 13 also freely rotates via the drive force transmission means 12 and the shutter curtain 1 is fully closed, whereby a disaster prevention zone is formed by the shutter curtain 1.

  Further, when a person discovers that a disaster such as a fire has occurred, this person is arranged in the operating device 30 shown in FIG. 1 and is connected to the end of the second control wire 112 described above. The second control wire 112 is pulled by a manual operation member such as a lever member. As a result, the plunger 127 of the solenoid 126 moves backward, so that even before the solenoid 126 is energized and excited, the bending lever member 129 is centered on the central axis 129A even when the solenoid 126 is energized and excited. 18, the roller 130 of the bending lever member 129 escapes from the recess 120 </ b> B of the slide member 120, and the slide member 120 moves forward by the spring force of the spring 121.

  Therefore, according to the present embodiment, even in the manual operation using the second control wire 112, the brake device 19 of the switch 13 is turned off and the shutter curtain 1 that has been fully opened is closed and moved to be fully closed. be able to.

  As described above, in this embodiment, the second control wire and the manual operation member such as a lever member connected to the end of the second control wire 112 are manually operated when a disaster such as a fire occurs. Thus, a manual closing device for closing and moving the shutter curtain 1 that has been fully opened (closing operation) is configured.

  And in this embodiment, as FIG. 1 shows, the operating device 30 is a position close to the switch 13 and the automatic closing device 32 in the building housing 3 such as the left and right walls. Since it is arranged in the building housing 3A, the length of the second control wire 112 that is spanned between the automatic closing device 32 and the operating device 30 can be shortened. For this reason, rather than the case where the operating device 30 is arranged in the other building housing 3, the pulling force when the second control wire 112 is pulled by the manual operation member such as the lever member described above is instantaneously applied to the automatic closing device 32. Thus, the closing movement of the shutter curtain 1 can be started quickly.

  When the shutter curtain 1 reaches the fully closed position and a disaster such as a fire is resolved, the end portion of the third control wire 113 is pulled by operating the manual operation member 141 shown in FIG. Thus, since the third control wire 113 is connected to the slide member 120 of the automatic closing device 32, the slide member 120 is retracted against the spring force of the spring 121. For this reason, the slide member 120 returns from the position shown in FIG. 20 to the initial position where the front end becomes the H position in FIG. Further, when the slide member 120 returns to this initial position, the bending lever member 129 rotates in the direction G in FIG. 18 by the spring force of the springs 131 and 132 about the central axis 129A. As shown in FIG. 18, the roller 130 is fitted into the recess 120 </ b> B of the slide member 120, and the slide member 120 stops in a state where the front end of the slide member 120 reaches the H position. Thereby, the automatic closing device 32 returns to the initial state before the occurrence of a disaster such as a fire.

  When the slide member 120 returns to the initial position, the brake shaft 21 and the brake drum 22 of the brake device 19 of the opening / closing machine 13 move in the direction opposite to the A ′ direction by the spring 23 described above in FIG. 19 returns to ON. Thereafter, by operating the above-mentioned “open” button provided in the operating device 30, the shutter curtain 1 opens and moves to the fully open position as described above.

  In the shutter device before renovation according to the present embodiment, the lock wire 36 and the first control wire 111 are first string-like members, and the automatic closing device 32 is turned on by being pulled. A second control wire 112 that is a second string-like member for manually turning off the brake device 19 is connected. The automatic closing device 32 is connected to a third control wire 113 that is a third string-like member for returning the automatic closing device 32 to an initial state by a pulling operation.

  In the case where a coupling tool 36F for forming a loop portion 36E for connecting the upper end to the coil spring 43 is provided at the upper end of the second portion 36C of the locking wire 36 shown in FIG. It is preferable that the horizontal cross-section of the coupler 36F be elongated in the thickness direction of the shutter curtain 1 by crushing the coupler 36F. According to this, the hole 57 through which the second portion 36C enters and exits is orthogonal to the elongated direction of the coupler 36F, which is formed in the upper surface portion 55B of the case 55 for housing the mechanical coupler 39 shown in FIG. Since the long hole is long in the width direction of the shutter curtain 1, the lower surface of the coupler 36 </ b> F is the outer portion of the long hole 57 when the shutter curtain 1 is opened and moved to the fully open position as described above. By contacting the upper surface portion 55B of the case 55, it is possible to prevent the lower surface of the coupler 36F from entering the inside of the long hole 57 and moving the shutter curtain 1 more than a predetermined amount.

  As described above, the solenoid 126 of the automatic closing device 32 is energized and excited by the control device 27 to which a signal from a sensor that detects a disaster such as a fire is input, or is connected to the end of the second control wire 112. The second control wire 112 is pulled by a manual operation member such as a lever member, which causes the brake device 19 of the switch 13 to be turned off, and the shutter curtain 1 is closed and moved downward from the fully open position. In other words, when the automatic closing device 32 is in the state shown in FIG. 20, the obstacle 34 shown in FIG. 1 exists below the shutter curtain 1 in the closing movement direction. In the middle of the closing movement of the shutter curtain 1, the curtain sub-portion 71 disposed at the front end portion on the closing side of the shutter curtain 1. But, in other words, the movable portion 70B of the above-described forming the lower portion of the seat plate 1B of the shutter curtain 1 is in contact with the obstacle 34, the descent of the movable part 70B is stopped.

  Even if the lowering of the movable part 70B is stopped, the curtain main part 71A composed of the curtain main body 1A and the fixed part 70A of the seat plate 1B is lowered. Due to the relative rise of the curtain sub-portion 71B with respect to the portion 71A, the first lever member 61 and the second lever member 62 of the mechanical coupling device 39 described above are in friction members 67 and 68 as described with reference to FIG. The above-described folded portion 36A of the locking wire 36 is clamped, and the locking wire 36 is locked by this clamping. As a result, the shutter curtain 1 and the locking wire 36 serving as the bridging member according to the present embodiment are mechanically coupled by the mechanical coupling device 39.

  Until then, the locking wire 36 is fed from the reel 40 of the first processing device 37 following the closing movement of the shutter curtain 1, and the folded portion 36 </ b> A of the locking wire 36 is formed by the friction members 67 and 68. When the locking wire 36 is clamped and locked, the first portion 36B and the second portion 36C of the locking wire 36 that are folded back by the folded portion 36A based on the dent deformation of the obstacle 34 Since the weight of the portion of the shutter curtain 1 above the curtain sub-portion 71B, that is, the weight of the curtain main portion 71A acts on the lock wire 36, particularly, the second portion 36C has a large tension. Works.

  As shown in FIG. 15, the folded portion 36A of the lock wire 36 is sandwiched between friction members 67 and 68 having a large frictional force provided on the first lever member 61 and the second lever member 62. Because the friction members 67 and 68 are locked, the locking wire 36 can be prevented from sliding relative to the first lever member 61 and the second lever member 62. Further, in the present embodiment, the above-described shaft 63 serving as the pivot center axis of the first lever member 61 and the second lever member 62 is shared by the first lever member 61 and the second lever member 62. Therefore, the structure of the mechanical coupling device 39 can be simplified by reducing the number of members, and the positional relationship between the friction members 67 and 68 can be set appropriately. For this reason, the folded portion 36A of the lock wire 36 is provided. Can be clamped and locked more reliably by the friction members 67 and 68.

  Further, the contact of the shutter curtain 1 with the obstacle 34 is not performed below the position where the mechanical coupling device 39 is disposed, and the shutter curtain 1 is viewed from below the position where the mechanical coupling device 39 is disposed. Therefore, when the portion of the shutter curtain 1 where the mechanical coupling device 39 is arranged is about to move slightly in the closing direction of the shutter curtain 1, the first processing device 37 is used. The locking wire 36 fed out from the reel 40 tries to move so that the portion clamped by the friction members 67 and 68 moves from the first portion 36B side to the second portion 36C side. Since the distance between the friction members 67 and 68 is gradually reduced in the direction opposite to the moving direction, the locking wire 36 is connected to the first lever member 61 and the second lever member 62. Can be more effectively prevented from sliding move.

  In the present embodiment, when the folded portion 36A of the locking wire 36 is clamped and locked by the friction members 67 and 68, as shown in FIG. One guide member 60A of the guide members 60 and the second lever member 62 form a detour portion 36G that is not linear. For this reason, even if the obstacle 34 is a hard object that does not dent deform or hardly dent deforms, the second portion 36C of the locking wire 36 is pulled by forming the detour portion 36G in the locking wire 36. As a result, a large tension can be applied to the second portion 36C.

  As described above, the sliding movement of the locking wire 36 relative to the first lever member 61 and the second lever member 62 is prevented by the friction members 67 and 68, and the second portion 36 </ b> C of the locking wire 36 is prevented. When a large tension force is applied, the rotating member 42 of the second processing device 38 shown in FIG. 16 rotates in the direction D in FIG. The amount of movement is in accordance with the length of the arc-shaped long hole 42B in which the aforementioned stop member 101 is inserted. The rotation at this time rotates the pinion gear 103 of the rotary damper 102 in the F direction. However, the rotation of the pinion gear 103 in the F direction does not generate a resistance force due to the viscous fluid in the damper 102 as described above. For this reason, the rotating member 42 is rotated in the direction D at a high speed by the tension applied to the second portion 36C, and the first control wire having one end connected to the rotating member 42. 111 will be pulled.

  The second portion 36C of the lock wire 36 is not directly connected to the rotating member 42, and an impact load buffering elastic member is provided between the second portion 36C and the rotating member 42. Since the above-described coil spring 43 is interposed, even if the above-described large tension force instantaneously acts on the second portion 36C, this tension force does not directly act on the rotating member 42, and the tension force Can be relaxed and act on the rotating member 42.

  Even when the amount of rotation of the rotating member 42 in the D direction reaches a limit value defined by the stop member 101 inserted in the arc-shaped elongated hole 42B, the shock load buffering action by the coil spring 43 also causes Further, it is possible to prevent a large impact load from propagating between the second portion 36 </ b> C of the locking wire 36 and the rotating member 42.

  When the first control wire 111 is pulled as described above, the other end of the first control wire 111 is connected to the slide member 120 shown in FIG. Retreat against the spring 121. The amount by which the first control wire 111 is pulled and the amount by which the slide member 120 is retracted are the amounts defined by the length of the long hole 42B of the rotating member 42 shown in FIG. The slide member 120 that has reached the I position shown in FIG. 20 does not move back to the retreat limit where the position of the front end of the slide member 120 becomes the H position in FIG. 18, and the position where the front end becomes the J position, Stop at an intermediate position between the H and I positions. The state at this time is shown in FIG. At this time, the position of the slide member 120 with which the roller 130 of the bending lever member 129 is in contact has moved in the length direction of the slide member 120, which is the slide direction of the slide member 120, as compared with FIG. 20. The roller 130 is still in contact with the inclined surface 120C described above.

  Further, since the position of the front end of the slide member 120 at this time is retracted from the I position to the J position, the first member 31A of the lever member 31 shown in FIGS. The load that has been pressed in the direction A in FIG. 3 is released. For this reason, the brake device 19 of the switch 13 is switched from off to on. When the brake device 19 is turned on, the drive shaft 14 of the opening / closing machine 13 cannot be rotated, so that the winding shaft 11 to which the upper end of the shutter curtain 1 is coupled cannot be rotated.

  Therefore, the shutter curtain 1 that is in contact with the obstacle 34 closes and stops moving at the contact position. This stop can be achieved by the mechanical coupling device 39 provided with the first lever member 61 and the second lever member 62 for locking the locking wire 36 with the friction members 67 and 68, or the second processing which is also mechanical. This is performed by a mechanical structure including the device 38, the slide member 120 which is a member of the automatic closing device 32 which slides mechanically, the brake device 19 of the switch 13 which is mechanically turned on, and the like. For this reason, after the shutter curtain 1 is closed and started moving, the building in which the shutter device according to the present embodiment is installed is blacked out due to the occurrence of a disaster such as a fire or other reasons. In addition, the shutter curtain 1 in contact with the obstacle 34 during the closing movement can be stopped.

  In the present embodiment, as described with reference to FIG. 1, the mechanical coupling device 39 and the unit structure 45 constituting the mechanical obstacle detection device 35 described above are arranged at the center position in the width direction of the shutter curtain 1. It is not arrange | positioned at B, but is arrange | positioned from this center position B in the position displaced to the one side in which the switch 13 and the automatic closing device 32 are arrange | positioned among the width directions of the shutter curtain 1. FIG. . For this reason, the length of the first control wire 111 wired between the second processing device 38 and the automatic closing device 32 can be shortened. Therefore, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34, the aforementioned tension force acting on the first control wire 111 can be instantaneously input to the automatic closing device 32. The brake device 19 of the machine 13 can be quickly turned on.

  As described above, in the shutter device before renovation according to the present embodiment, the mechanical coupling device 39 includes the first and second lever members 61, which are a pair of sandwiching members disposed on the shutter curtain 1. 62, and when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34, the pair of first and second lever members 61 and 62 sandwich the locking wire 36 which is a string-like member, A tension force for sliding the slide member 120 and turning on the brake device 19 acts on the lock wire 36.

  Note that, for example, there is not enough space for the first control wire 111 to be wired at the location because there is a large object between the unit structure 45 and the automatic closing device 32. For this reason, the unit structure When it is impossible or difficult to wire the first control wire 111 having a reduced length between the second processing device 38 of the object 45 and the automatic closing device 32, the unit structure in the lintel 16 The position where the object 45 is arranged is changed from the above position, whereby the first control wire 111 and the first control wire 111 can be routed between the second processing device 38 and the automatic closing device 32. You may make it wire by passing. As a result, the position of the unit structure 45 in the lintel 16 is changed from the central position B in the width direction of the shutter curtain 1 to the width direction of the shutter curtain 1 in which the switch 13 and the automatic closing device 32 are disposed. The position of the mechanical obstacle detection device 35, which is configured by the unit structure 45 or the like, is shifted to a position opposite to the one side, and the central position B of the shutter curtain 1 in the width direction. On the other hand, a position opposite to the position shown in FIG. 1, in other words, a position further away from the central position B from the switch 13 and the automatic closing device 32 may be used.

  As described above, when the shutter curtain 1 that is closing and moving contacts the obstacle 34 and the brake device 19 of the switch 13 is turned on, the obstacle 34 is removed. Since 71B descends, the locking wire 36 is not clamped or locked by the friction members 67 and 68 of the first lever member 61 and the second lever member 62 of the mechanical coupling device 39, and the shutter by the mechanical coupling device 39 is released. The mechanical coupling state between the curtain 1 and the lock wire 36 is also released. As a result, the tension force of the locking wire 36 disappears. Therefore, the rotating member 42 of the second processing device 38 on which the return force by the return spring 100 in FIG. 16 acts is rotated in the direction C in FIG. Due to this rotation, the slide member 120 of the automatic closing device 32 that has been pulled in the backward direction by the first control wire 111 is moved from the J position shown in FIG. 21 to the I position shown in FIG. The moving forward is performed by the spring 121. For this reason, the brake device 19 of the opening / closing machine 13 is switched again from on to off, and the shutter curtain 1 resumes its closed movement.

  When the rotating member 42 of the second processing device 38 rotates in the direction C in FIG. 16, the pinion gear 103 of the rotary damper 102 rotates in the E direction. Resistance is generated. For this reason, the position of the front end of the slide member 120 shifts from the J position shown in FIG. 21 to the I position shown in FIG. 20, and the brake device 19 of the opening / closing machine 13 is switched from on to off by this shift. Due to the delay action of the damper 102, it is not performed instantaneously. Therefore, when the shutter curtain 1 is closed and restarted by the removal of the obstacle 34, the movement of the obstacle 34 is started with a time delay from the removal of the obstacle 34. It can be carried out.

  As can be seen from this description, the two rotary dampers 102 arranged in the second processing device 38 are delay devices for causing the above-described delay.

  That is, in the shutter device before renovation according to the present embodiment, the damper 102 delays the operation of the second processing device 38 that is an intermediate device, that is, the rotation of the rotating member 42 of the second processing device 38. It has become a thing.

  In order to prevent the viscous fluid from dropping from the unit structure 45 shown in FIG. 4 even if the viscous fluid leaks from the damper 102 of the delay device, for example, the base member of the unit structure 45 is used. By providing a rising wall around 44, the base member 44 may be dish-shaped.

  Further, this delay device may employ, for example, mechanical means including a mainspring type timer instead of the damper 102. According to this mechanical means, unlike the viscous fluid damper 102, the delay time can be set more accurately without being affected by the environmental temperature.

  Then, after the shutter curtain 1 is fully closed, the slide member 120 of the automatic closing device 32 is positioned at the front end by pulling the third control wire 113 with the manual operation member 141 shown in FIG. In order to perform the return movement returning to the H position in FIG. 18, the entire automatic closing device 32 returns to the initial state in FIG.

  In addition, by extending the third control wire 113 to the operation device 30 shown in FIG. A rotating member that is rotated by a switch operation type electric motor disposed in the operating device 30 may be connected to a winding member for winding the third control wire 113 so as to be unwound. Thereby, you may enable it to be able to be pulled with the said winding member rotated with the said manual operation member or the said electric motor by the 3rd wire 113 for control.

  In the present embodiment described above, as described above, both the first portion 36B and the second portion 36C of the lock wire 36 are the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed. Since it is arranged at a position away from the shutter curtain 1 in the thickness direction and does not interfere with the curtain main portion 71A, it is a bridging member spanned between the lintel 16 and the shutter curtain 1. Thus, the locking wire 36, which is a mechanical member in the present embodiment, does not hinder the opening and closing movement when the shutter curtain 1 is opening and closing, and can smoothly perform the opening and closing movement. Can do.

  In the present embodiment, since the locking wire 36 is separated from the curtain main portion 71A except the fixing portion 70A of the shutter curtain 1 for both the first portion 36B and the second portion 36C, the shutter curtain 1 is opened and closed. Even if it moves, the entire lock wire 36 does not rub against the curtain main portion 71A except for the fixed portion 70A. For this reason, the entire lock wire 36 and the curtain main portion 71A excluding the fixed portion 70A However, it can be prevented from being damaged.

  Further, according to the present embodiment, as described with reference to FIG. 2, the shutter curtain 1 is suspended below the ceiling member 5 through the slit 17 of the lintel 16 disposed on the ceiling member 5, and the lock wire 36. The first and second portions 36 </ b> B and 36 </ b> C have a length straddling the top and bottom of the ceiling member 5, and the first and second portions 36 </ b> B and 36 </ b> C are not in contact with the lintel 16, and Since the slit 16 is inserted into the slit 16, smooth movement of the locking wire 36 relative to the lintel 16 can be ensured when the shutter curtain 1 is opened and closed.

  Furthermore, since the first and second portions 36B and 36C of the locking wire 36 do not interfere with the lintel 16, it is possible to prevent both the locking wire 36 and the lintel 16 from being damaged.

  The above description is the description of the operation of the shutter device when the shutter device before renovation according to the present embodiment functions as a shutter device for disaster prevention.

  Next, the operation of the shutter device when the shutter device before renovation according to the present embodiment functions as a management shutter device will be described.

  In order to close and move the shutter curtain 1 that is fully open in the normal state, the shutter curtain 1 is closed and moved electrically by operating the “close” button of the operating device 30 shown in FIG. On the other hand, in order to open and move the shutter curtain 1 that is fully closed, the shutter curtain 1 is opened and moved electrically by operating the “open” button of the operation device 30. Thus, when the shutter device before renovation according to the present embodiment operates as a management (opening) shutter device for opening and closing the entrance 2, the closing movement of the shutter curtain 1 is performed by the operating device 30. Of the automatic closing device 32 described above, and a second manually operated member such as a lever member connected to the end of the second control wire 112 described above. It is not performed by pulling the control wire 112 or the like. For this reason, the state of the automatic closing device 32 when the shutter curtain 1 starts the closing movement at the normal time (in other words, in a normal state) is the state shown in FIGS. 17 and 18.

  When the shutter curtain 1 that is being closed is in contact with the obstacle 34, the first lever member 61 and the second lever member 62 of the mechanical coupling device 39 are the friction members 67, as in the case of the emergency described above. , 68, the portion 36A of the locking wire 36 is clamped and locked, so that a downward tension force acts on the second portion 36C of the locking wire 36.

  Thereby, the closing movement of the shutter curtain 1 is stopped by the tension force acting on the second portion 36 </ b> C of the locking wire 36. Accordingly, the rotation member 42 of the second processing device 38 to which the end portion of the second portion 36C of the lock wire 36 is coupled via the coil spring 43 rotates in the direction D shown in FIG. It will be. As described above, the other end portion of the first control wire 111 whose one end portion is connected to the rotating member 42 is connected to the first connecting portion 138 </ b> A of the connecting member 138 of the slide member 120. Therefore (see FIG. 18), the first control wire 111 is pulled by the rotation member 42 rotating in the D direction. As shown in FIG. 18, there is a gap 176 between the rear end 120E of the wide portion 120D of the slide member 120 before the first control wire 111 is pulled and the roller 130 of the bending lever member 129. Is formed. For this reason, when the first control wire 111 is pulled, the slide member 120 can be retracted by the gap 176. As described above, the rotation amount of the rotation member 42 is in accordance with the length of the arc-shaped long hole 42B in which the stop member 101 is inserted, and the retreat distance (movement amount) of the slide member 120. Is substantially the same as the rotation amount of the rotation member 42. For this reason, the backward movement of the slide member 120 stops immediately after the rear end portion 120E of the wide portion 120D contacts the roller 130. Therefore, there is almost no force with which the slide member 120 presses the roller 130, and there is no possibility that the roller 130 is damaged by the retreat of the slide member 120.

  As described above, FIG. 16 is a diagram showing the second processing device 38 when the shutter curtain 1 is not in contact with the obstacle 34. At this time, the upper portion of the machine frame 49 of the second processing device 38 is shown. The operation member 171 of the microswitch 170 fixedly arranged is in a state of being in contact with the outer peripheral surface 42D of the rotating member 42, that is, in a state where the microswitch 170 is not operating. On the other hand, FIG. 22 is a diagram showing the second processing device 38 when the rotating member 42 rotates in the D direction by the shutter curtain 1 coming into contact with the obstacle 34. As shown in FIG. 22, when the rotating member 42 rotates in the D direction, the operating member 171 of the micro switch 170 contacts the dog member 173 attached to the rotating member 42 ( Get on). For this reason, the operating member 171 that protrudes downward by the biasing force of the spring is immersed, and the micro switch 170 is activated. That is, it is in a state where it is detected that a tension has acted on the second portion 36C of the locking wire 36, in other words, in a state where the obstacle 34 is electrically detected.

  For this reason, in the shutter device before renovation according to the present embodiment, as described above, in addition to the mechanical obstacle detection device 35, the mechanical obstacle detection device 35 and the micro switch 170, the shutter curtain 1 There is provided an electric obstacle detecting device that electrically detects the obstacle 34 during the electric closed movement. That is, the electric obstacle detection device 174 is a normal obstacle detection unit that detects contact of the shutter curtain 1 with the obstacle 34 during the electric descent of the shutter curtain 1 in a normal state. On the other hand, the mechanical obstacle detection device 35 is an emergency obstacle detection means for detecting contact with the obstacle 34 whose weight is falling on the shutter curtain 1 in an emergency. Further, the micro switch 170 serves as tension force detecting means for detecting that tension force is applied to the locking wire 36 that is a tension force acting member.

  The micro switch 170 is operated so that the closing movement of the shutter curtain 1 is stopped by the mechanical shutter curtain stop device after the closing shutter curtain 1 comes into contact with the obstacle 34. It has become.

  The micro switch 170 is not disposed at the center position B in the width direction (left-right direction) of the shutter curtain 1 shown in FIG. 1, and is displaced from the center position B to one side in the width direction of the shutter curtain 1. It is arrange | positioned in the position where the opening / closing machine 13 is arrange | positioned.

  When the micro switch 170 is activated, an obstacle detection signal indicating that the obstacle 34 has been detected is input to the control device 27 (not shown) to which the lead wire 172 of the micro switch 170 is connected. As a result, the following control is performed by the control device 27 for avoiding contact (collision) with the obstacle portion 34 that is in contact with the shutter curtain 1.

  First, control for cutting off the energization of the coil 25 of the electric motor device 18 of the opening / closing device 13 is performed, whereby the positive drive of the electric motor device 18 is stopped. Thereafter, control is performed to cut off the energization of the solenoid 24 of the brake device 19 of the opening / closing device 13, thereby turning on the brake device 19. As a result, the shutter curtain 1 stops the electric descent.

  Thereafter, control for energizing the solenoid 24 of the brake device of the switch 13 again is performed, and control for energizing the coil 25 of the electric motor device 18 of the switch 13 again is performed. Thereby, the electric motor device 18 is reversely driven (reversely rotated). As a result, the shutter curtain 1 is electrically lifted (opened movement), in other words, reversed and lifted.

  When a fully open limit switch (not shown) is operated while the shutter curtain 1 is being electrically raised, the control for cutting off the energization of the coil 25 of the electric motor device 18 of the switch 13 (reverse driving of the electric motor means device is performed). Control to stop) and control to cut off the energization of the solenoid 24 of the brake device 19 of the switch 13 (control to turn on the brake device 19) are performed. As a result, the shutter curtain 1 stops being lifted by electricity.

  On the other hand, if the fully open limit switch is not activated while the shutter curtain 1 is being electrically lifted, the shutter curtain 1 is in a period from when the shutter curtain 1 starts to be lifted until the first predetermined time T1 elapses. The electric increase will continue. Whether or not the first predetermined time T1 has elapsed since the start of the electric lift of the shutter curtain 1 is determined by a time counted by a timer circuit (not shown) provided in the control device 27.

  When the first predetermined time T1 has elapsed since the start of the electric raising of the shutter curtain 1, the control for cutting off the energization of the coil 25 of the electric motor device 18 of the switch 13 is performed, whereby the electric motor device is controlled. The reverse drive of 18 stops. Thereafter, control is performed to cut off the energization of the solenoid 24 of the brake device 19 of the opening / closing device 13, thereby turning on the brake device 19. As a result, the shutter curtain 1 stops being lifted by electricity.

  In the present embodiment, the electric descent is started again after the second predetermined time T2 has elapsed after the electric descent of the shutter curtain 1 is stopped. That is, the stop of the shutter curtain 1 is continued until the second predetermined time T2 elapses after the electric lift of the shutter curtain 1 is stopped. On the other hand, when the second predetermined time T <b> 2 has elapsed after the electric lift of the shutter curtain 1 has stopped, the above-described control for electrically lowering the shutter curtain 1 is performed. Note that whether or not the second predetermined time T2 has elapsed since the shutter curtain 1 stopped being electrically lifted is determined by the time counted by the timer circuit.

  In the present embodiment, the first and second predetermined times T1 and T2 counted by the timer circuit can be arbitrarily set, and T1 and T2 may be the same.

  In addition, since the curtain sub-part 71B moves away from the obstacle 34 due to the electric lift of the shutter curtain 1 in contact with the obstacle 34, the curtain sub-part 71B descends relative to the curtain main part 71A. . Accordingly, the rotation member 42 in the state shown in FIG. 22 rotates in the C direction by the return force of the return spring 100, so that it contacts the dog member 173 attached to the rotation member 42. The actuating member 171 of the micro switch 170 of the second processing device 38 that has been immersed in the step is again protruded (see FIG. 16). As a result, the operation of the micro switch 170 is released. That is, the obstacle detection state of the electric obstacle detection device 174 is canceled.

  When the electrically driven shutter curtain 1 is lowered again, if the obstacle 34 has not yet been removed, the micro switch 170 of the second processing device 38 will be actuated again. The above-described control for electrically raising the shutter curtain 1 is performed.

  As described above, when the shutter device before renovation according to the present embodiment functions as a management shutter device, when the shutter curtain 1 is fully opened, “ When the shutter curtain starts to move when the “close” button is operated, and the shutter curtain 1 in the closing movement comes into contact with the obstacle 34, the first lever member 61 of the mechanical coupling device 39 The second lever member 62 sandwiches and locks the folded portion 36A of the locking wire 36 in the friction members 67 and 68, and the mechanical coupling device 39 mechanically couples the shutter curtain 1 and the locking wire 36. Therefore, downward tension acts on the second portion 36 </ b> C of the locking wire 36.

  When the closing movement of the shutter curtain 1 is performed by operating the “close” button of the operating device 30 as described above, the tension of the second portion 36C of the lock wire 36 is the second process. It acts on the slide member 120 of the automatic closing device 32 via the rotating member 42 of the device 38 and the first control wire 111. Since the roller 130 of the bending lever member 129 is fitted in the concave portion 120B of the slide member 120 at this time, the shutter curtain 1 is slightly closed due to the dent deformation of the obstacle 34 or the like. After descending, it can be stopped.

  As described above, the shutter device before renovation according to the present embodiment has both a function as a management shutter device and a function as a disaster prevention shutter device, and is a delay device. Reference numeral 102 denotes only a function as a shutter device for disaster prevention.

  Further, in the shutter device before renovation according to the present embodiment, when this shutter device functions as a management shutter device, a micro that is a detection means for detecting that a tension force is applied to the locking wire 36. A switch 170 is provided, and the micro switch 170 is provided in the vicinity of the damper 102 disposed in the second processing device 38.

  As described above, the shutter device before the modification (in other words, before the change) according to the present embodiment shown in FIGS. And an opening / closing machine 13 having a brake device 19 for stopping and moving the shutter curtain 1 and a slide member 120 slidable to switch the braking device 19 on and off. An automatic closing device 32 that is a mechanical control device for mechanically controlling 13 and a shutter that is disposed on the shutter curtain 1 and that is present in the movement path of the shutter curtain 1 during the closing movement of the shutter curtain 1 When contacting the object 34, the shutter curtain 1 and the lock wire 36, which is a string-like member, are mechanically coupled. Further, a mechanical coupling device 39 for applying a tension force for sliding the slide member 120 to turn on the brake device 19 by the dead weight of the shutter curtain 1 and the removal of the obstacle 34 are slid on the lock wire 36. A damper 102 that is a delay device for causing the member 120 to switch the brake device 19 from on to off and the shutter curtain 1 to close and resume movement with a time delay from the removal of the obstacle 34; It has become.

  Next, the modified shutter device according to the present embodiment will be described. FIG. 23 is a view similar to FIG. 1 showing the entire shutter device after the modification of the shutter device shown in FIGS. 1 to 22 described above, that is, the modified shutter device according to the present embodiment. In FIGS. 23 to 42 used in the following description, among members, devices, etc. used in the shutter device before the refurbishment, members, devices, etc. that are used as they are in the shutter device after the refurbishment have the same reference numerals. The description is omitted.

  The shutter device after repair according to the present embodiment is a combined (combined) shutter device for management and disaster prevention, similarly to the shutter device before repair. That is, the modified shutter device according to the present embodiment has a function as a management shutter device and a function as a disaster prevention shutter device.

  As described above, FIG. 23 shows the entire modified shutter device according to the present embodiment, and FIG. 23 is similar to FIG. 1 described above, and the opening / closing movement direction is vertical. The shutter curtain 1 that is closed and moved downward is shown in a half-closed state in which the shutter curtain 1 is closed to about half. The opening that is opened and closed by the shutter curtain 1 is an entrance 2 formed in the building. The entrance 2 includes a left and right building housing 3 such as a wall and a lower end of the shutter curtain 1 when fully closed. It is surrounded by a floor 4 and a ceiling member 5 that are counterpart members to be hit. A pair of left and right guide rails 6 slidably inserted at both ends in the left and right direction of the shutter curtain 1, in other words, both ends in the width direction of the shutter curtain 1, are attached to the left and right building housings 3. The shutter curtain 1 is moved up and down by being guided by these guide rails 6 as members.

  A shutter box 8 is disposed in the ceiling space 7 partitioned by the ceiling member 5 with respect to the entrance / exit 2, and the shutter box 8 is shown in FIG. 24, which is a cross-sectional view taken along line S 24 -S 24 in FIG. As shown in the figure, it is coupled to a building housing 9 such as a falling wall existing in the ceiling space 7 with a coupler 10 such as a bolt. A take-up shaft 11 is horizontally accommodated in the shutter box 8, and the take-up shaft 11 is rotatably supported by the left and right side portions 8A and 8B shown in FIG. Yes. As shown in FIG. 23, an opening / closing machine 13 is connected to one end of the winding shaft 11 via a driving force transmission means 12 using a sprocket wheel and a roller chain. The opening / closing machine 13 serving as a driving device for driving the winding shaft 11 is also shown in FIG. 24, and the rotational force of the driving shaft 14 of the opening / closing machine 13 is driven by a driving sprocket attached to the driving shaft 14. A driving force transmission means 12 includes a wheel 12A, a driven sprocket wheel 12B attached to the one end of the winding shaft 11, and an endless roller chain 12C bridged between the sprocket wheels 12A and 12B. Then, it is transmitted to the winding shaft 11.

  In addition, the opening / closing machine 13 of this embodiment is attached to the bracket member 15 couple | bonded with one side surface part 8B among the right and left side surface parts 8A and 8B of the shutter box 8, as shown in FIG. ing.

  As can be seen from FIG. 24, the shutter curtain 1 is wound around the winding shaft 11, and the upper end of the shutter curtain 1 is coupled to the outer peripheral surface of the winding shaft 11. Further, the lower part of the shutter curtain 1 from the winding shaft 11 is suspended below the ceiling member 5 through a slit 17 provided in the lintel 16 disposed on the ceiling member 5, and further the shutter. Both ends in the width direction of the curtain 1 are slidably inserted into the left and right guide rails 6 as described above. The lintel 16 is formed by lintel members 16A and 16B arranged to face each other, and a slit 17 is formed between the lintel members 16A and 16B.

  FIG. 25 is a cross-sectional view showing the internal structure of the switch 13. As shown in FIG. 25, the switch 13 includes a DC or AC electric motor device 18 and a brake device 19 arranged in parallel in the axial direction, and the drive shaft 14 described above includes an electric motor device. This is a rotating shaft arranged at the center of 18 rotating rotors 18A. A disc-shaped brake shoe 20 is coupled to the end of the drive shaft 14 on the brake device 19 side. The brake device 19 is provided with a brake shaft 21 that is slidable by a fixed distance in the axial direction. The brake shaft 21 is coupled to a brake drum 22 facing the brake shoe 20 in the axial direction. The brake shaft 21 and the brake drum 22 in the normal state are pressed toward the electric motor device 18 by the spring 23. Therefore, the brake device 19 is turned on by the pressure contact between the brake shoe 20 and the brake drum 22. Accordingly, the drive shaft 14 of the electric motor device 18 at this time is not rotated by the braking force of the brake device 19.

  On the other hand, when the solenoid 24 arranged in the brake device 19 is energized, the brake shaft 21 and the brake drum 22 slide in a direction away from the electric motor device 18 against the spring 23 by the magnetic force of the solenoid 24. For this reason, the pressure contact between the brake shoe 20 and the brake drum 22 is released, and the brake device 19 is turned off. Therefore, at this time, the drive shaft 14 of the electric motor device 18 can be rotated by energizing the coil 25.

  Of the left and right building housings 3A and 3B shown in FIG. 23, in one building housing 3A, the shutter curtain 1 is connected to the entrance 2 in the same manner as the operation device 30 provided in the shutter device before the above-described renovation. An operating device 230 is attached for causing the robot to open and move upward, to close and move downward, and to stop moving. This operating device 230 is a modified version of the operating device 30 of the shutter device before refurbishment (in other words, a portion of the operating device 30 that is diverted). ”Button,“ close ”button, and“ stop ”button are used as they are, and the functions of these buttons are the same as the functions of the operation device 30 of the shutter device before the modification. The shutter curtain 1 includes the curtain body 1A described above and a seat plate 201B provided at the lower end of the curtain body 1A. The seat plate 201B is a shutter device before refurbishment. It has the same or substantially the same shape and structure as the seat plate 1B. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically.

  The curtain main body 1A is an opening / closing body main body in the shutter device after the renovation according to the present embodiment, similarly to the shutter device before the refurbishment, and the seat plate 201B It is an end member in the shutter device after the repair according to the present embodiment disposed at the end.

  When the shutter curtain 1 reaches the height position of the lintel 16 disposed on the ceiling member 5 described above, or when the seat plate 201B is illustrated in FIG. If the “close” button of the operation device 230 is operated when the shutter curtain 1 that has reached a halfway position between the two is in the half-closed state (half-open state), the control device 27 receives a signal from the “close” button. Since the solenoid 24 of the brake device 19 is energized by this control, the brake device 19 is turned off. Thus, the shutter curtain 1 is rotated downward from the take-up shaft 11 by rotating the take-up shaft 11 and the drive shaft 14 by the dead weight of the shutter curtain 1, and the shutter curtain 1 that is closed and moved thereby is brought into the fully closed position. When reaching, the control device 27 to which a signal from a sensor (not shown) that detects the fully closed position receives the power supply to the solenoid 24 is cut off, and the brake device 19 is turned on by the spring 23. Further, when the shutter curtain 1 is fully closed or when the seat curtain 201B reaches the midway position between the lintel 16 and the floor 4 as shown in FIG. When the “open” button is operated in the semi-closed state), the solenoid 24 of the brake device 19 is energized by the control of the control device 27 to which a signal from the “open” button is input. While being turned off, the coil 25 of the electric motor device 18 is energized under the control of the control device 27. For this reason, the drive shaft 14 rotates in the reverse direction, and this rotation is transmitted to the winding shaft 11 via the driving force transmission means 12 described above, and the shutter curtain 1 is moved to the winding shaft 11 by the reverse rotation of the winding shaft 11. It is rolled up and moved. When the shutter curtain 1 reaches the fully open position, energization to the solenoid 24 is cut off by the control of the control device 27 to which a signal from a sensor (not shown) that detects the fully open position is input, and the brake device 19 is turned on by the spring 23. At the same time, the power to the coil 25 is cut off by the control of the control device 27.

  Further, when the “stop” button is operated while the shutter curtain 1 is being closed and moved, the energization of the solenoid 24 is cut off by the control of the control device 27 to which a signal from the “stop” button is input. When the brake device 19 is turned on by the spring 23, the shutter curtain 1 stops at that position. Furthermore, when the “stop” button is operated while the shutter curtain 1 is being opened and moved, the energization of the solenoid 24 is cut off by the control of the control device 27 to which the signal from the “stop” button is input. The brake device 19 is turned on by the spring 23, and energization of the coil 25 of the electric motor device 18 is interrupted by the control of the control device 27, whereby the shutter curtain 1 stops at that position.

  As can be seen from the above description, the floor 4 and the guide rail 6, the shutter box 8, the bracket member 15 coupled to the shutter box 8, the lintel 16 and the like with respect to the shutter curtain 1 that opens and closes. Therefore, the floor 4, the guide rail 6, the shutter box 8, the bracket member 15, the lintel 16, and the like are immovable members for the shutter curtain 1.

  The shutter curtain 1 is closed and moved not only by its own weight but by its own weight and the positive rotation of the drive shaft 14 driven by the electric motor device 18. You may make it make it.

  Further, as described above, the take-up shaft 11 that can be rotated forward and backward is provided with a return spring by a torsion coil spring or a mainspring spring in which a return force is accumulated during the closing movement of the shutter curtain 1, and the shutter curtain. One upward opening movement may be performed using the return force accumulated in the return spring as an auxiliary force.

  In the present embodiment, as shown in FIG. 25, a lever member 31 is disposed at the end of the brake shaft 21 opposite to the electric motor device 18 side. The lever member 31 penetrates the brake shaft 21 and includes a first portion 31A and a second portion 31B that are divided with the brake shaft 21 as a boundary. A first bent portion 31C is formed in the first portion 31A, and a second bent portion 31D is formed in the second portion 31B. When a load is applied to the first portion 31A in the A direction, that is, the side opposite to the electric motor device 18 side, the first portion 31A swings in the A direction with the second bent portion 31D as a fulcrum. 21 and the brake drum 22 slide in the A ′ direction which is the same direction as the A direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24.

  For this reason, the brake device 19 is also a mechanical brake device that is turned on / off by the action of the load in the A direction on the first portion 31A and the spring 23 when the load is released.

  24 is a cross-sectional view taken along line S24-S24 of FIG. 23, and is the same as FIG. 2 described above. FIG. 25 is a cross-sectional view showing the internal structure of the switch 13 and is the same as FIG. 3 described above.

  The fact that the load in the direction A acts on the first portion 31A of the lever member 31 of the brake device 19 shown in FIG. 25 is that, in the modified shutter device, FIG. 24 and FIG. This is performed by an automatic closing device 232 which will be described later, which is a component device of the composite device 300 shown in FIG. As will be described later, the automatic closing device 232 is a mechanical control device for mechanically controlling the brake device 19 of the opening / closing machine 13 that is a driving device of the shutter curtain 1.

  Further, when a load in the same direction as the A direction acts on the second portion 31B, the second portion 31B swings in the same direction as the A direction with the first bent portion 31C as a fulcrum. 21 and the brake drum 22 slide in the A ′ direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24 at this time.

  Thus, applying a load in the same direction as the A direction to the second portion 31B can be performed manually. For this reason, the switch 13 according to this embodiment can turn off the brake device 19 by manual operation. Note that the second portion 31B may be omitted leaving the second bent portion 31D.

  26 is a cross-sectional view taken along line S26-S26 in FIG. 23, showing the structure of the portion of the seat plate 201B of the shutter curtain 1 shown in FIG. As described above, the shutter curtain 1 of the modified shutter device according to the present embodiment includes the curtain main body 1A and the seat plate 201B, and the seat plate 201B includes the fixed portion 270A and the movable portion 270B. Further, the shutter curtain 1 has a curtain main portion 71A and a curtain sub-portion 271B of the shutter device before refurbishment, and the curtain main portion 71A is constituted by the curtain main body 1A and the fixing portion 270A of the seat plate 201B. The curtain sub-part 271B is configured by the movable part 270B of the seat plate 201B. Therefore, the curtain sub-part 271B is disposed at the end of the shutter curtain 1 on the closing side. The curtain main portion 71A is an opening / closing body main portion in the modified shutter device according to the present embodiment, and the curtain sub-portion 271B is an opening / closing body sub-portion in the modified shutter device according to the present embodiment. It has become.

  Also, as shown in FIG. 26, in the seat plate 201B, a fixing portion 270A coupled to the curtain body 1A is formed by inner and outer members 275 and 276 that are both box-shaped in cross section. The movable part 270B is movable up and down with respect to 270A. As can be seen from FIG. 26, the lower surfaces of the inner and outer members 275 and 276 forming the fixed portion 270A are openings 278, and the upper end of the rising portion 279 of the movable portion 270B extends from the opening 278 to the fixed portion 270A. Is inserted into the interior space. Extending portions 279A and 279B extending outward in the thickness direction of the shutter curtain 1 are formed at the upper end of the rising portion 279, and these extending portions 279A and 279B are formed at the lower end of the inner member 276 of the fixing portion 270A. By riding on the upper surfaces of the formed projecting piece portions 276A and 276B, the lower limit of movement of the movable portion 270B relative to the fixed portion 270A is defined. Note that the seat plate 201B is coupled to the lower end portion of the curtain main body 1A by a coupler 77 such as a bolt or a nut, similarly to the seat plate 1B described above. For this reason, the seat plate 201B can be attached to and detached from the curtain body 1A.

  A swing member 281 that is swingable up and down around a fulcrum shaft 280 extending in the width direction of the shutter curtain 1 is housed inside the fixed portion 270A. As shown in FIG. 27, when the movable part 270B rises with respect to the fixed part 270A, that is, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 shown in FIG. When the extending portion 279A of the rising portion 279 of the portion 270B pushes up the swing member 281, the swing member 281 swings upward about the fulcrum shaft 280.

  As shown in FIGS. 26 and 27, a case 233 also shown in FIG. 23 is attached to the fixing portion 270A of the seat plate 201B, and the inside of the case 233 is shown in FIGS. Is shown in As shown in FIG. 30, inside the case 233, there is a rotating member 235 that is a ratchet-hole type gear having a large number of teeth 235A formed on the outer periphery at equal intervals in the circumferential direction, The take-up reel 237 is accommodated so as to be rotatable about a shaft 241 that is a fixed shaft fixed to the case 233 as will be described later, and is coaxial with the rotation center shaft serving as the shaft 241. The rotating member 235 and the take-up reel 237 are combined and integrated as will be described later. Further, the lower end of the lock wire 236 is coupled to the take-up reel 237, and the lower portion of the lock wire 236 extending downward from the portion of the lintel 16 described above has a center of rotation inside the case 233. It is wound around a take-up reel 237 via a guide roller 229 that is housed rotatably around a shaft 229A, and the upper portion of the lock wire 236 extends upward from the upper surface of the case 233. Then, the upper end of the locking wire 236 extends to the direction changing device 238 shown in FIGS. 23, 24, and 36.

  In the above description, the lock wire 236 whose lower portion is wound around the take-up reel 237 so as to be freely drawn out is a string-like member having flexibility. When the shutter curtain 1 closes and moves downward, the shutter curtain 1 closes and moves while the locking wire 236 is fed out from the take-up reel 237 that rotates in the Y direction around the shaft 241 in FIG. .

  FIG. 29 shows an overall front view of the case 233 in which the rotating member 235, the take-up reel 237, and the guide roller 229 are housed. FIG. 32 is a cross-sectional view taken along line S32-S32 of FIG. The figure is shown. As shown in FIG. 32, a return spring storage space 237A (see also FIG. 30) is formed inside the take-up reel 237 in which a groove 237B for winding the lock wire 236 is formed on the outer peripheral portion. In this return spring storage space 237A, a return spring 239, which is partially omitted in FIG. 30, is stored, and an axis that is the rotation center axis of the rotating member 235 and the take-up reel 237 This return spring 239 that is wound around the outer periphery of 241 is a mainspring spring. For this reason, the return spring 239 is a spiral spring in which the shaft 241 is inserted into the center.

  The inner end, which is one end of the return spring 239, is fixed to the case 233 and connected to a shaft 241 which is a member on the case 233 side, and the outer end, which is the other end, will be described later. As described above, the rotary member 235 and the take-up reel 237 are connected to each other. Therefore, when the rotating member 235 and the take-up reel 237 rotate in the Y direction in FIG. 30 and the shutter curtain 1 closes and moves downward, the return spring 239 has a winding that rotates to feed out the locking wire 236. When the return spring force is accumulated by the take-up reel 237 and the shutter curtain 1 opens and moves upward, the return spring force accumulated in the return spring 239 causes the rotating member 235 and the take-up reel 237 to move in the opposite Z direction to the Y direction. The lock wire 236 is wound around the take-up reel 237 by rotating in the direction.

  For this reason, in the shutter device after the modification according to the present embodiment, the take-up reel 240 and the return spring 239 constitute a take-up device 240 for taking up the lock wire 236 so as to be unwound. Further, when the shutter curtain 1 is opened and closed, the rotating member 235 and the take-up reel 237 are rotated by the lock wire 236.

  In the modified shutter device according to the present embodiment, the return spring 239 that is a spiral spring by the mainspring spring is housed in the space 237A formed inside the take-up reel 237, and therefore the shutter for the case 233 Even if the dimension in the thickness direction of the curtain 1 is small, as can be seen from FIG. 28, the dimension in the thickness direction of the shutter curtain 1 for the take-up reel 237 can be made sufficiently large. The winding length of the lock wire 236 is sufficiently long, and the shutter curtain 1 can be adapted to a shutter device having a long opening / closing movement distance.

  As shown in FIG. 30, a lock member 250 that is rotatable up and down around a shaft 256 provided in the case 233 is housed inside the case 233. The lock member 250 of the present embodiment includes a main member 252 that does not have the tooth portion 253 that can be engaged with the tooth portion 235A of the rotating member 235 that is a ratchet wheel gear, and the shutter curtain 1. The main member 252 having a length in the width direction is fastened to the sub member 251 having a tooth portion 253. Thus, the lock member 250 is formed into a combined structure in which the sub member 251 and the main member 252 that are separate parts are overlapped in the thickness direction of the shutter curtain 1, so that the tooth portion 235 </ b> A of the rotating member 235 is formed. By performing a quenching process or the like on the sub member 251 on which the engaging tooth part 253 is formed, the tooth part 253 can have the same as the tooth part 235A of the rotating member 235 without performing a quenching process or the like on the entire lock member 250. , Great strength can be imparted. Further, by making the sub member 251 made of a hard metal that is harder than the main member 252, it is not necessary to form the entire lock member 250 from an expensive hard material.

  In the modified shutter device according to the present embodiment, a plurality of teeth 253 of the lock member 250 that are separated in the rotation direction of the lock member 250 about the shaft 256 as shown in FIG. Each tooth portion 253 in the shutter device after the repair according to the present embodiment is a first tooth portion 253A, a second tooth portion 253B, and a third tooth portion 253C. The tooth portions 253A, 253B, and 253C are provided on an arc or a substantially arc centered on the shaft 256 that is the center of rotation of the lock member 250.

  Further, as shown in FIG. 26, the swinging member is disposed so as to be swingable up and down around the fulcrum shaft 280 inside the fixed portion 270A (curtain main portion 71A) of the seat plate 201B described above. A pressing member 254 is attached to 281.

  As can be seen from FIG. 30, the lock member 250 is provided with a torsion coil spring 257. As shown in FIG. 35, one end portion 257B of the torsion coil spring 257 in which the coil portion 257A is wound around the outer periphery of the large-diameter portion 256B of the shaft 256 has a main member 252 and a sub member 251. The other end portion 257C is engaged with both side surface portions 233B and 233C of the case 233 shown in FIG. 28. Of these, it is locked to the case 233 by being inserted into a hole of a bent portion 233D formed at the lower end of the side surface portion 233C shown in FIG. Therefore, the torsion coil spring 257 is provided between the shaft 256 and the lock member 250 and the case 233, and the lock member 250 is centered on the shaft 256 by the spring force of the torsion coil spring 257 in FIG. It is urged to rotate in the W direction. As a result, a part of the lock member 250 swings up and down freely around the pressing member 254 provided in the shutter curtain 1, that is, around the fulcrum shaft 280 provided in the curtain main portion 71A of the shutter curtain 1. The pressing member 254 disposed on the member 281 comes into contact with the pressing member 254.

  For this reason, as will be described later, the shutter curtain 1 and the lock member 250 have the lock member 250 in the W direction in FIG. A shutter curtain side contact portion 258 and a lock member side contact portion 259 that are in contact with each other to rotate in the opposite X direction are provided. The shutter curtain side abutting portion 258 is due to the pressing member 254, and the lock member side abutting portion 259 is the second lock member on the main member 252 of the lock member 250 and the second lock member side abutting portion 259A. There are two member side contact portions 259B. The first lock member side contact portion 259 </ b> A and the second lock member side contact portion 259 </ b> B are separated in the width direction of the shutter curtain 1, which is the length direction of the lock member 250.

  Providing the first lock member side contact portion 259A and the second lock member side contact portion 259B in the lock member 250 constitutes the lock member 250 as shown in FIGS. It can implement | achieve by making the part which does not overlap with the submember 251 among the main members 252 into L shape or a substantially L shape.

  In the modified shutter device according to the present embodiment, of the lock member side contact portion 259, the first lock member side contact portion 259A is formed by a leaf spring 260 coupled to the main member 252. For this reason, the first lock member side contact portion 259A is an elastic portion that can be elastically deformed.

  Further, as shown in FIGS. 28 and 30, the main member 252 of the lock member 250 has a length extending to both sides in the thickness direction of the lock member 250, which is the thickness direction of the shutter curtain 1. 263 is provided, and the extending member 263 is formed by a rod-shaped member that penetrates the main member 252. As shown in FIG. 28, a bent stop portion 233E is provided at the lower end of the side surface portion 233C of the case 233. For this reason, the case 233 in which the lock member 250 and the like are housed and arranged. Is attached to the fixing portion 270A of the seat plate 201B of the shutter curtain 1 even if the lock member 250 is urged to rotate about the shaft 256 in the W direction by the spring force of the torsion coil spring 257. When the end of the extending member 263 comes into contact with the stop portion 233E, the limit of rotation of the lock member 250 in the W direction is defined. As a result, the first lock member-side contact portion 259A of the lock member 250 becomes larger in the case. Protruding from the lower surface opening of 233 can be eliminated.

  As shown in FIG. 27, for example, when the seat plate 201B of the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 shown in FIG. 23, the fixing portion 270A ( When the movable portion 270B (curtain sub-portion 271B) rises relative to the curtain main portion 71A), the swing member 281 swings upward about the fulcrum shaft 280, so that the pressing member 254 causes the lock member to In FIG. 30, 250 rotates around the shaft 256 in the X direction. As a result, the tooth portion 253 of the lock member 250 is engaged with the tooth portion 235A of the rotating member 235 as shown in FIG. 31, and the rotating member 235 and the rotating member 235 are coupled by this engagement. The integrated take-up reel 237 cannot be rotated in the rotation direction (Y direction in FIG. 30) when the shutter curtain 1 is moving in the closing direction. For this reason, the rotation member 235 and the take-up reel 237 are disabled. Is locked by the lock member 250 and cannot be rotated.

  For this reason, at this time, the lock wire 236 partially wound around the take-up reel 237 and the shutter curtain 1 on which the take-up reel 237 is arranged are mechanically coupled. Therefore, in the shutter device after the repair according to the present embodiment, the mechanical coupling device for mechanically coupling the lock wire 236 that is a string-like member and the shutter curtain 1 by the rotating member 235, the lock member 250, and the like. 255 is configured.

  In this embodiment, the mechanical coupling device 39 in the shutter device before the modification shown in FIGS. 1 to 22 is changed to the mechanical coupling device 255 in the shutter device after the modification, and this mechanical coupling is performed. The device 255 is provided with a plurality of tooth portions 235A on the outer peripheral portion, and can be engaged with the rotating member 235 rotated by the lock wire 236 when the shutter curtain 1 is moved, and the tooth portion 235A of the rotating member 235. And the toothed portion 253 is moved (rotated) when the shutter curtain 1 being moved is in contact with the obstacle 34, and the toothed portion 253 is moved to the toothed portion by this movement (turned). And a locking member 250 that engages with 235A and makes the rotating member 235 non-rotatable.

  For this reason, in this embodiment, the mechanical coupling device 39 in the shutter device before the modification is a mechanical coupling device before the change (in other words, the first mechanical coupling device), and the shutter after the modification. The mechanical coupling device 255 in the apparatus is a mechanical coupling device after being changed (in other words, a second mechanical coupling device).

  As described above, the lock member 250 is configured by stacking the main member 252 having the length in the width direction of the shutter curtain 1 and the sub member 251 in the thickness direction of the shutter curtain 1. 35, the sub member 251 is attached to the main member 252 so as to be rotatable about a rotation center shaft 261. As shown in FIG. The main member 252 is formed with an arc-shaped elongated hole 252A centering on the rotation center shaft 261, and is a fastening screw member inserted into the elongated hole 252A from a round hole of the sub member 251. The shaft portion of the bolt 262 is inserted, and the end portion of the shaft portion of the bolt 262 protruding from the long hole 252A is screwed into a nut that is prevented from rotating around the main member 252 and is movable along the long hole 252A. Then, by tightening the bolt 262, the sub member 251 is fastened to the main member 252 with the bolt 262 and a nut. Further, when the bolt 262 is loosened, the sub member 251 can be rotated with respect to the main member 252 around the rotation center shaft 261 by the long hole 252A that guides the shaft portion of the bolt 262. When the bolt 262 is tightened later, the sub member 251 whose position relative to the main member 252 is changed and adjusted can be fastened to the main member 252 again with the bolt 262 and the nut.

  Therefore, in the modified shutter device according to the present embodiment, the bolt 262 whose shaft portion is screwed to the nut serves as a fastening member for fastening the main member 252 and the sub member 251 and releasing the fastening. Yes.

  The small diameter portion 256A of the shaft 256 is inserted into the circular hole of the main member 252 so that the sub member 251 can be rotated about the rotation center shaft 261 with respect to the main member 252. As shown in FIG. 35, the hole 251A formed in the sub member 251 for inserting the small diameter portion 256A is an arc-shaped long hole with the rotation center shaft 261 as the center. It has become. The coil portion 257A of the torsion coil spring 257 described above is wound around the outer periphery of the large diameter portion 256B of the shaft 256.

  In the modified shutter device according to the present embodiment, the position of the sub member 251 relative to the main member 252 is more specifically determined by the rotation center shaft 261 and the bolt 262 in which the nut is screwed to the shaft portion. The position adjusting means 264 shown in FIG. 35 for adjusting the position of the sub member 251 with respect to the main member 252 around the rotation center shaft 261 is configured.

  When the position adjusting means 264 adjusts the position of the sub member 251 relative to the main member 252 around the rotation center axis 261, as can be seen from FIG. 35, the tip of the tooth portion 253 of the lock member 250 and the rotating member 235 Since the size of the gap 265 with the tip of the tooth portion 235A changes and is adjusted, the position adjusting means 264 also becomes a gap adjusting means 266 that can adjust the size of the gap 265. In the modified shutter device according to the present embodiment, the gap adjusting means 266 is provided on the lock member 250.

  Further, in the modified shutter device according to the present embodiment, the position of the rotation center shaft 261 is set so that the entire lock member 250 is rotated so that the gap adjustment means 266 can adjust the size of the gap 265. The position of the axis 256, which is the central axis, is deviated in the width direction of the shutter curtain 1, which is the length direction of the lock member 250, and this deviated direction is rotated as can be seen from FIG. The position of the central shaft 261 is a direction opposite to the rotating member 235 with respect to the shaft 256.

  Both ends of the shaft 256 that is the central axis of rotation of the entire lock member 250 are inserted into holes formed in both side surfaces 233B and 233C of the case 233 shown in FIG. These holes are shown as elongated holes 267 in FIGS. The longitudinal direction of the long hole 267 is a direction toward the rotating member 235. That is, the hole 267 formed to insert and support both ends of the shaft 256 in the case 233 is a long hole extending toward the rotating member 235 side. For this reason, the lock member 250 and the shaft 256 are movable toward and away from the rotating member 235.

  The coil portion 257A is wound around the outer periphery of the shaft 256, and the torsion coil spring 257 provided between the case 233, the shaft 256, and the lock member 250 causes the shaft 256 and the lock member 250 to be moved by a spring force. The torsion coil spring 257 is an elastic member having such an urging force. The torsion coil spring 257 is always urged toward the rotating member 235 indicated by the arrow X in FIG. Due to the elastic biasing force of the elastic member, the shaft 256 is pressed against the end of the elongated hole 267 on the rotating member 235 side, whereby the size of the gap 265 becomes the size set by the gap adjusting means 266.

  A case 233 which is attached to the fixing portion 270A of the seat plate 201B of the shutter curtain 1 and in which the mechanical coupling device 255 is accommodated is a case main body 285 as can be seen from FIGS. 28, 29 and 30. And a lid member 286 that covers the case main body 285. The case main body 285 coupled to the fixing portion 270A of the seat plate 201B of the shutter curtain 1 by the coupling tool 284 such as a screw shown in FIGS. 29 and 30 has a thickness of the shutter curtain 1 as shown in FIG. A main portion 285A that faces the lid member 286 in the vertical direction, and a bent portion 285B that is bent in the thickness direction of the shutter curtain at right angles to the main portion 285A from an appropriate position, out of the entire outer edge portion of the main portion 285A. A screw hole 285D is formed in the tongue piece portion 285C provided in the bent portion 285B shown in FIG. The shaft member of the fastening tool 287 such as a screw is inserted into the hole of the cover member 286 shown in FIG. 29, and the shaft member is screwed into the screw hole 285D, so that the cover member 286 is attached to the case main body 285. be able to. Further, the lid member 286 can be separated from the case main body 285 by removing the fastener 287.

  That is, the lid member 286 can be attached to and detached from the case main body 285.

  As shown in FIG. 29, the lid member 286 is formed with a window hole 286A through which the inside of the case 233 can be seen, and the gap adjusted by the gap adjusting means 266 in FIG. An operation of confirming the size of H.265 can be performed. This confirmation operation is performed by inserting an inspection tool such as a clearance gauge from the window hole 286A, for example, between the tooth portion 235A of the rotating member 235 and the tooth portion 253 of the lock member 250. When it is determined that the size is inappropriate, the lid member 286 is removed, and then the bolt 262 described with reference to FIG. 35 is loosened to rotate the position of the sub member 251 with respect to the main member 252 of the lock member 250. By adjusting the center axis 261 as the center, the size of the gap 265 can be adjusted to an appropriate size.

  Note that the window hole 286A of the lid member 286 attached to the case main body 285 may be closed by a closing member such as an adhesive sheet after the adjustment work of the gap 265.

  Further, the window hole through which the inside of the case 233 can be visually recognized may be provided not only in the lid member 286 but also in the case main body 285. According to this, before attaching the case 233 to the fixing portion 270A of the seat plate 201B of the shutter curtain 1, the size of the gap 265 can be confirmed by the aforementioned inspection tool inserted from the window hole provided in the lid member 286, and The size of the gap 265 can be confirmed also by an inspection tool inserted from a window hole provided in the case body 285. Further, even if the inspection tool is long in the thickness direction of the shutter curtain 1, By passing this inspection tool through the window holes provided in both the case main body 285 and the lid member 286, the size of the gap 265 can be confirmed.

  Further, unlike the above description, the main member 252 and the sub member 251 of the lock member 250 are formed of the same material, and the tooth portion 253 of the sub member 251 is subjected to a hard surface coating process such as hard chrome plating, for example. The required hardness may be imparted to the tooth portion 253.

  As described above, the case 233 of the present embodiment has the case main body 285 and the lid member 286, and the case main body 285 is opposed to the lid member 286 in the thickness direction of the shutter curtain 1. Since the portion 285A is provided, as can be seen from FIG. 28 which is a sectional view taken along line S32-S32 of FIG. The side surface portion 233B close to the curtain main body 1A of the curtain 1 is formed, the lid member 286 forms the side surface portion 233C far from the curtain main body 1A, and these side surface portions 233B, 233C are the thickness of the shutter curtain 1. Opposite direction.

  In the modified shutter device according to the present embodiment, as shown in FIG. 32, a step in the thickness direction of the shutter curtain 1 is provided at a position in the middle of the main portion 285 </ b> A of the case body 285. The formed step portion 285E is provided, and the upper and lower portions of the step portion 285E are a first surface portion 288 and a second surface portion 289 of the main portion 285A. The upper first surface portion 288 is a location near the lid member 286 in the main portion 285A, and the lower second surface portion 289 is a location far from the lid member 286 in the main portion 285A. .

  As shown in FIG. 32, the rotating member 235 and the take-up reel 237 described above are integrally coupled by a coupling tool 242 such as a screw. This coupling and unification is performed by connecting the shaft 241 to the rotating member 235 and the take-up reel. 237 is performed coaxially as a common rotation center axis. The aforementioned return spring storage space 237A provided for storing the return spring 239 inside the take-up reel 237 is a through space penetrating in the axial direction of the take-up reel 237. For this reason, the width dimension of the return spring 239 that is a spiral spring by the mainspring spring can be made as large as the axial dimension of the take-up reel 237 (the thickness dimension of the take-up reel). For this reason, the return spring 239 can accumulate a large return spring force when the shutter curtain 1 is closed, and when the shutter curtain 1 is opened, the return spring force ensures that the lock wire 236 is secured to the take-up reel 237. It can be set as a spring with a large spring force which can be wound around.

  In the modified shutter device according to the present embodiment, the opening on the curtain body 1A side of the shutter curtain 1 among the openings on both sides in the axial direction of the return spring storage space 237A is blocked by the rotating member 235. The opening of the shutter curtain 1 on the side opposite to the curtain body 1 </ b> A side is closed by a closing member 243. The closing member 243 has a cup shape having a closing member main body 243A facing the rotating member 235 in the axial direction, and a flange portion 243B formed in a ring shape on substantially the entire circumferential edge of the closing member main body 243A. The flange portion 243B is press-fitted into the return spring housing space 237A, and the front end of the flange portion 243B is in contact with the rotating member 235. A shaft 241 serving as a rotation center axis common to the rotating member 235 and the take-up reel 237 passes through the return spring storage space 237A inside the take-up reel 237 and is formed in the rotating member 235 and the closing member main body 243A. The end of the shaft 241 projecting from the hole formed in the main portion 285A of the case main body 285 and the lid member 286 to the outside of the case 233 has a retaining member. 244 is attached.

  As shown in FIG. 32, the cover member 286 has a take-up reel axial position defining portion 245 for defining the axial position of the take-up reel 237 that is rotatable about the shaft 241. , Provided outside the return spring storage space 237A centering on the shaft 241. As shown in FIG. 32, the take-up reel axial position defining portion 245 protrudes toward the take-up reel 237, and as shown in FIG. 29, a plurality of take-up reel axial position defining portions 245 are provided in the circumferential direction around the shaft 241. It is a protrusion provided. Such a take-up reel axial position defining portion 245 can be formed by half-cutting a cover member 286 made of sheet metal.

  In this way, the take-up reel axial position defining portion 245 is formed to protrude toward the take-up reel 237 and to be a plurality of protrusions provided in the circumferential direction around the shaft 241. Since the contact area between the take-up reel axial position defining portion 245 and the take-up reel 237 and the rotational frictional resistance are reduced, the take-up reel 237 can be smoothly rotated around the shaft 241.

  The lid member 286 is provided with a closing member axial position defining portion 246 for defining the axial position of the closing member 243 that is rotatable about the shaft 241. The blocking member axial direction position defining portion 246 protrudes toward the closing member 243 as can be seen in FIG. 32, and as shown in FIG. 29, a circular protrusion in which the shaft 241 is inserted in the central portion. Has become a department. The blocking member axial direction position defining portion 246 can also be formed by performing half-punching or drawing on a lid member 286 made of sheet metal.

  By providing the take-up reel axial position defining portion 245 and the closing member axial position defining portion 246 on the lid member 286, as shown in FIG. 32, the rotating member 235 becomes the main portion 285A of the case main body 285. In addition to being in contact with the inner surface of the shaft 241, the positions of the rotating member 235 and the take-up reel 237 in the axial direction of the shaft 241 can be defined. In other words, even if the return spring storage space 237A provided inside the take-up reel 237 for storing the return spring 239 is used as a through space penetrating in the axial direction as described above, the take-up reel provided in the lid member 286. The positions of the rotary member 235 and the take-up reel 237 in the axial direction of the shaft 241 can be defined by the axial position defining portion 245 and the closing member axial position defining portion 246, whereby the tooth portion 253 of the lock member 250 can be defined. It becomes possible to engage the teeth 235A of the rotating member 235 more reliably.

  As shown in FIG. 32, the shaft 241 is formed with a split groove 241A cut from the end on the lid member 286 side, and the split groove 241A is a spiral spring formed by a mainspring spring. An inner end 239A, which is one end of the spring 239, is inserted and locked, whereby the inner end 239A is coupled to the shaft 241. Further, a loop portion 239B is formed at the outer end which is the other end of the return spring 239 (see also FIG. 30).

  As can be seen from FIG. 32, the rotary member 235 that is a plate-like member is formed with an insertion portion 235B by cutting and raising, and the insertion portion 235B is inserted into the loop portion 239B. Further, an insertion portion 243C is also formed in the closing member 243, and this insertion portion 243C is provided at a location where the aforementioned flange portion 243B of the closing member 243 is missing, as can be seen in FIG. 243C is also inserted into the loop portion 239B. As a result, the loop portion 239 </ b> B that is the outer end portion of the return spring 239 is connected to the rotating member 235, the take-up reel 237 that is coupled to the rotating member 235 by the coupler 242, and the closing member 243. Will be. Therefore, as described above, when the shutter curtain 1 closes and moves downward and the rotating member 235 and the take-up reel 237 rotate in the Y direction in FIG. 30, the lock wire 236 is fed out to the return spring 239. When the return spring force is accumulated by the take-up reel 237 rotating in the direction and the shutter curtain 1 is opened upward and moved, the return spring force accumulated in the return spring 239 causes the rotating member 235 and the take-up reel 237 to move in the Y direction. , The lock wire 236 is taken up by the take-up reel 237 by rotating in the opposite Z direction.

  The insertion portion 235B of the rotating member 235 and the insertion portion 243C of the closing member 243 are inserted into the loop portion 239B of the return spring 239, whereby the rotating member 235 and the closing member 243 are connected via the loop portion 239B. Therefore, even if the closing member 243 is not coupled to the take-up reel 237 with a screw or the like, or the flange portion 243B of the close-up member 243 is input to the return spring housing space 237A of the take-up reel 237 with a large pressure. Thus, the rotary member 235 and the closing member 243 can be connected in the rotational direction around the shaft 241 even if they are not press-fitted or simply inserted without being press-fitted.

  As shown in FIG. 32, the end portion on the main portion 285A side of the case main body 285 among both end portions of the shaft 241 protrudes from the main portion 285A, and the spacer 247 and the rotating member are formed on the protruding end portion. A rotation plate 248 and a retaining member 249 are attached, and the rotation plate 248 is coupled and integrated with the shaft 241. FIG. 33 is a view taken in the direction of the arrow S33 in FIG. 32. As shown in FIG. 33, the rotary plate 248 having a disk shape with the shaft 241 penetratingly fixed to the center portion includes the shaft 241. A plurality of holes 248 </ b> A are provided at equal intervals in a circumferential direction centering on the center. Further, as shown in FIG. 32, an opening 285 </ b> F for inserting the lower part of the rotating plate 248 is formed in the above-described stepped portion 285 </ b> E of the case main body 285.

  Of the main portion 285A of the case main body 285, the second surface portion 289 below the step portion 285E is provided with a protruding portion 285G protruding toward the rotating plate 248 by cutting or the like, and the protruding portion 285G A shaft portion of a bolt 301 that is a pin-like member is screwed into the formed screw hole 285H, and this shaft portion can be inserted into the hole 248A of the rotating plate 248. By performing this insertion, the rotating plate 248 and the shaft 241 to which the rotating plate 248 is coupled are fixed to the case 233 so as not to rotate.

  Further, after the shaft portion of the bolt 301 is removed from the hole 248A by the rotation operation of the bolt 301, the rotation plate 248 is rotated or the tool is engaged with the engagement groove 241B provided on the shaft 241. By performing the rotation operation 241, the shaft 241 can be rotated with respect to the case 233. When this rotation is performed, the return spring 239 having the inner end portion 239A connected to the shaft 241 and wound around the outer periphery of the shaft 241 rotates the inner end portion 239A in the circumferential direction of the return spring 239. Therefore, since the winding is tightened according to the rotation direction of the shaft 241 or the tightening is relaxed, the spring force of the return spring 239 that is a spiral spring by the mainspring spring is adjusted, and this adjustment is performed. Later, by inserting the shaft portion of the bolt 301 into the hole 248A of the rotating plate 248 reaching the portion facing the shaft portion, the shaft 241 is fixed to the case 233 again in a non-rotatable manner.

  Therefore, the return spring 239 is provided by a bolt 301 or the like that is disposed in the shaft 241, the rotating plate 248, and further in the screw hole 285 </ b> H of the case 233 and is a pin-like member that can be inserted into and removed from the hole 248 </ b> A of the rotating plate 248. The spring force adjusting means 302 is configured for adjusting the magnitude of the spring force. The spring force adjusting means 302 is a means configured to rotate the inner end portion of the return spring 239 by rotating the shaft 241.

  The bolt 301 serving as a pin-like member is formed in the case 233 and one hole 248A among the holes 248A formed in the circumferential direction around the shaft 241 in the rotating plate 248. By being inserted into the screw hole 285 </ b> H, a connecting member for connecting the rotating plate 248 after rotation about the shaft 241 and the case 233 is formed.

  According to this spring force adjusting means 302, even if the spring force of the return spring 239 changes due to repeated opening / closing movement or aging deterioration of the shutter curtain 1, the return spring is used to wind the lock wire 236 around the take-up reel 237. The magnitude of the return spring force accumulated in 239 can be adjusted to an appropriate value.

  The spring force adjusting means 302 adjusts the spring force of the return spring 239 to, for example, the magnitude corresponding to the up / down movement stroke of the shutter curtain 1 shown in FIG. It can also be used to adjust to an appropriate size when the shutter curtain is fully opened, reaching the position of the lintel 16.

  Furthermore, in the spring force adjusting means 302 of the present embodiment, adjusting the spring force of the return spring 239 is to rotate the rotating plate 248 or engage the tool with the engaging groove 241B provided on the shaft 241; Since this is done by rotating the shaft 241 with this tool, the location of the rotating plate 248 and the location where the engaging groove 241B of the shaft 241 is provided are the operating locations operated in the spring force adjusting means 302. . In the present embodiment, as shown in FIG. 26, this operation location and the case 233 in which the take-up reel 237 is housed are arranged side by side in the thickness direction of the shutter curtain 1. The operation location is disposed between the case 233 and the curtain main body 1A described above in the shutter curtain 1.

  According to this, after attaching the case 233 in which the spring force adjusting means 302 has been assembled in advance to the fixing portion 270A of the seat plate 201B of the shutter curtain 1, an operator or the like mistakes this after adjusting the spring force. It is possible to prevent the operation part from being operated. Therefore, after attaching the case 233 to the fixing portion 270A of the seat plate 201B of the shutter curtain 1, the spring force of the return spring 239 can be maintained at the adjusted magnitude.

  In order to enable an operator or the like to operate the spring force adjusting means 302 even after the case 233 is attached to the fixing portion 270A, the operating position of the spring force adjusting means 302 is designated as the shutter curtain 1 in the case 233. You may provide in the location on the opposite side to 1 A of curtain main bodies.

  Further, as shown by a two-dot chain line in FIG. 32, among the members constituting the lock member 250 described above, the main member 252 ′ is extended beyond the sub member 251 to the side surface of the rotating member 235. It is good also as what has a part. According to this, in the rotating member 235, the portion facing the second surface portion 289 of the main portion 285A of the case main body 285 has a space portion between this portion and the second surface portion 289. The rotation of the rotary member 235 and the take-up reel 237 can be prevented from being displaced toward the second surface portion 289 by the extended portion of the main member 252 ′, whereby the tooth portion 235A of the rotary member 235 and the lock member can be prevented. Engagement with the teeth 253 of the 250 sub-members 251 can be realized more reliably.

  Further, in the case where the extended portion is provided in the main member 252 ′ as described above, the window hole provided for inserting an inspection tool such as a clearance gauge into the lid member 286 and the case body 285 of the case 233 as described above. A hole similar to 286A may also be provided in this extended portion.

  Furthermore, according to the present embodiment, the take-up reel 237 and the return spring 239 are housed inside the case 233 and disposed on the seat plate 201B that serves as the end member of the shutter curtain 1 described above. The take-up reel 237 and the return spring 239 can be effectively protected from external force or the like when the shutter curtain 1 is opened and closed. Since the mechanical coupling device 255 described above is also housed in the case 233 and disposed on the seat plate 201B of the shutter curtain 1, the mechanical coupling device 255 is also used when the shutter curtain 1 is opened and closed. It can be effectively protected from external forces.

  As shown in FIG. 30, the case 233 is provided with a guide member 303 for guiding the lock wire 236 described above. The guide member 303 formed of synthetic resin includes a first guide portion 303A facing the outer periphery of a part of the guide roller 229 described above and a lock wire 236 inside and outside the case 233 inside the case 233. The second guide portion 303B has a second guide portion 303B which is disposed at a place where it enters and exits, part of which is exposed to the outside of the case 233 and the other portion is accommodated inside the case 233. A hole 303 </ b> C through which the lock wire 236 is inserted vertically is formed as a long hole extending in the width direction of the shutter curtain 1.

  The first guide portion 303A is disposed at a position near the outer peripheral surface of the guide roller 229 between the guide roller 229 and the lock member 250 disposed below the guide roller 229. For this reason, even if the lock wire 236 may be loosened before performing the work of attaching the case 233 to the shutter curtain 1, the first guide portion 303A prevents the loosened portion from reaching the lock member 250. Can do. In addition, when the shutter curtain 1 is moved up and down, even if the tension of the portion of the lock wire 236 wound around the guide roller 229 may disappear, this portion contacts the lock member 250. It can be prevented by the first guide portion 303A, and it can be ensured that the shutter curtain 1 normally opens and closes. In other words, the first guide portion 303 </ b> A of the guide member 303 can prevent the lock wire 236 from being entangled with the lock member 250.

  34 is a cross-sectional view taken along line S34-S34 in FIG. As shown in FIG. 34, both ends of the extending member 263 fixed to the main member 252 of the lock member 250 through the thickness of the lock member 250 are the shutter curtains in the case 233. 1 is in contact with the inner surfaces of the two side portions 233B and 233C facing each other in the thickness direction, or faces the inner surfaces of these side portions 233B and 233C with a slight gap. The position of the lock member 250 where the extending member 263 is disposed is the length of the lock member 250 that is the width direction of the shutter curtain 1 from the shaft 256 that is the rotation center axis of the entire lock member 250. It is a place away in the direction. For this reason, as described above, when the shutter curtain 1 in the closing movement is in contact with the obstacle 34, the lock member 250 rotates about the shaft 256 in the X direction in FIG. 30, or in the W direction. When rotating, the lock member 250 swings around the shaft 256 in the thickness direction of the lock member 250 (in the thickness direction of the shutter curtain 1 and in the thickness direction of the rotating member 235 described above). Blocked by member 263.

  Therefore, as can be seen from FIG. 28, the rotary member 235 is formed of a plate material having a small thickness, and the sub member 251 of the lock member 250 has a tooth portion 253 that engages with the tooth portion 235A of the rotary member 235. In addition, even if it is formed of a plate-like material having the same thickness as the rotating member 235, the extending member 263 prevents the locking member 250 from swinging in the thickness direction of the locking member 250 around the shaft 256. Therefore, when the locking member 250 rotates in the X direction in FIG. 30 about the shaft 256 by the shutter curtain 1 being moved in contact with the obstacle 34, the teeth of the sub member 251 of the locking member 250 The portion 253 can be more reliably engaged with the tooth portion 235A of the rotating member 235.

  Therefore, the extending member 263 stops the lock member 250 from swinging around the shaft 256 in the thickness direction of the lock member 250, in other words, in the axial direction of the shaft 256 and in the thickness direction of the rotating member 235. This is a locking member steadying means.

  The fact that the lock member 250 swings around the shaft 256 in the thickness direction of the lock member 250 means that the size of the hole of the lock member 250 through which the shaft 256 is inserted or the both ends of the shaft 256 are inserted. This occurs when the size of the hole 233 is not an accurate predetermined value and is larger than the predetermined value. For this reason, according to this embodiment, by providing the extending member 263 on the lock member 250, it is not necessary to set the size of these holes to an accurate predetermined value, so that these holes can be easily processed. Become.

  Moreover, the extending | stretching member 263 of this embodiment is a product made from a hard synthetic resin with a smaller friction coefficient than a metal, for example. For this reason, even if both ends of the extending member 263 come into contact with the inner surfaces of the side portions 233B and 233C of the case 233 made of metal, the lock member 250 can be smoothly rotated up and down around the shaft 256. Can be ensured.

  FIG. 36 shows a specific structure of the direction changing device 238 shown in FIGS. 23 and 24. The direction changing device 238 determines the direction of the lock wire 236 that is a flexible string-like member extending vertically upward or substantially vertically upward from the case 233 of the shutter curtain 1 according to the thickness of the shutter curtain 1. This is for conversion to the horizontal direction or the substantially horizontal direction. The main body 238A of the direction changing device 238 is mounted and fixed to a step portion 16C formed horizontally or substantially horizontally on the upper and lower middle portions or the upper surface of the lintel member 16A among the members constituting the lintel 16 described in FIG. Has been. A plurality of guide rollers 290 are rotatably provided on the main body 238A.

  In the present embodiment, there are five guide rollers 290, 290A to 290E, and the first guide roller 290A is disposed at a position closest to the shutter curtain 1, and is a second guide provided above the first guide roller 290A. The roller 290B is disposed at the second closest position to the shutter curtain 1, and the third guide roller 290C provided above the second guide roller 290B is disposed at the third closest position to the shutter curtain 1, The fourth guide roller 290D having the same or substantially the same height position as the third guide roller 290C is disposed at a position farthest from the shutter curtain 1. The fifth guide roller 290E is disposed above the third guide roller 290C.

  The locking wire 236 extending vertically upward or substantially vertically upward from the case 233 is guided by the first to fourth guide rollers 290A to 290D and vertically moved by the third guide roller 290C and the fifth guide roller 290E. The direction is changed in the horizontal direction or the substantially horizontal direction that is the thickness direction of the shutter curtain 1 by being sandwiched, and the converted lock wire 236 is slidably inserted into the cylindrical guide member 291. Yes.

  The guide member 291 includes a bent portion 238B formed on the main body 238A, a rising portion 16D rising from the step portion 16C of the lintel member 16A, and two downward extending portions 292A and 292B of the support member 292. The end portion of the locking wire 236 protrudes from the end portion of the guide member 291 and is inserted into and fixed to the downward extending portion 292A close to the lintel member 16A.

  As can be seen from FIG. 24, the support member 292 is an intermediate member interposed between the shutter box 8 and the lintel member 16A in order to attach the lintel member 16A to the shutter box 8 described above. The above-described coupling member 26 is coupled.

  In this embodiment, as shown in FIG. 30, the locking wire 236 whose lower end is coupled to the take-up reel 237 is directly extended from the take-up reel 237 to the outside of the case 233. Instead, it extends to the outside of the case 233 through the guide roller 229, and as shown in FIG. 30, the height position of the rotation center shaft 229A of the guide roller 229 is set to the rotation center shaft 241 of the take-up reel 237. The shutter curtain 1 is opened to the fully open position as shown in FIG. In other words, when moved, the position of the lower surface of the seat plate 201B of the shutter curtain 1 matches or substantially matches the position of the lower surface of the lintel 16. Sometimes, the direction of the locking wire 236 is changed to a predetermined horizontal direction or substantially by a direction changing device 238 arranged on the step portion 16C of the lintel member 16A that is a stationary member with respect to the shutter curtain 1 that opens and closes. It can be converted horizontally.

  In other words, by setting the height position where the direction changing device 238 is arranged to be lower than the height position of the upper surface of the case 233, the direction changing device 238 is fixed with respect to the shutter curtain 1 that is opened and closed. It can arrange | position to the step part 16C of the lintel member 16A which is an immovable member.

  As described above, in the shutter device after refurbishment according to the present embodiment, the direction of the lock wire 236 extending from the mechanical coupling device 255 in the opening movement direction of the shutter curtain 1 is determined by the direction changing device 238 by the shutter curtain. It is converted into a direction that forms an angle with the opening movement direction of 1.

  In the shutter device before renovation according to the present embodiment, the second processing device 38 shown in FIG. 16 changes the direction of the lock wire 36 extending in the opening movement direction of the shutter curtain 1 from the mechanical coupling device 39. It is also a direction changing device for converting the shutter curtain 1 into a direction that forms an angle with the opening movement direction of the shutter curtain 1.

  For this reason, in this embodiment, the 2nd processing apparatus 38 used also as the direction change apparatus in the shutter apparatus before a modification is changed into the direction conversion apparatus 38 in the shutter apparatus after a modification. In the present embodiment, the second processing device 38 in the shutter device before the modification is the direction changing device before the change (in other words, the first direction changing device), and the direction in the shutter device after the modification. The conversion device 238 is a changed direction changing device (in other words, a second direction changing device).

  As shown in FIGS. 23 to 25, the composite apparatus 300 is placed and fixed on the upper part of the opening / closing machine 13. FIG. 37 is a front view showing the internal structure of the composite apparatus 300, and FIG. 38 is a plan view showing the internal structure of the composite apparatus 300. The composite device 300 is a device in which the automatic closing device 232, the intermediate device 400, and the delay device 500 are combined in combination, and is an automatic control device that is a mechanical control device of the shutter device after the repair according to the present embodiment. When a disaster such as a fire occurs, the closing device 232 automatically closes the shutter curtain 1 that has been stopped at the fully opened position or in the middle of the opening and closing direction by mechanically controlling the brake device 19 of the opening and closing machine 13. The door is moved to be fully closed, and the entrance / exit 2 in FIG. 23 is closed by the shutter curtain 1 having smoke resistance and / or fire resistance.

  The composite apparatus 300 is attached to the upper part of the opening / closing machine 13 by a bracket portion 310A of FIG. 37 provided in the machine casing 310 of the composite apparatus 300. This state is also shown in FIG. Further, as shown in FIG. 38, each end of the first control wire 311, the second control wire 112, and the third control wire 313 for controlling the composite device 300 up to the composite device 300. The part is stretched. These control wires 111 to 113 are string-like members having flexibility like the above-described locking wires 236, and are also elongated members.

  Further, these control wires 111 to 113 are slidably inserted into the flexible outer cables 314 to 316. For this reason, the control wires 111 to 113 are protected by the outer cables 314 to 316.

  As shown in FIGS. 23, 24, and 36, the first control wire 311 extends from the composite device 300 to the direction changing device 238, and the end of the first control wire 311 is As shown in FIG. 36, the locking wire 236 is connected via a connecting member 294. Further, the end portion of the outer cable 314 of the first control wire 311 is coupled to the downward extension portion 292B of the two downward extension portions 292A and 292B of the support member 292.

  In the modified shutter device according to the present embodiment, the lock wire 236 and the first control wire 311 are separate members connected by the connecting member 294, but the lock wire 236 is connected to the composite device 300. The first control wire 311 may be omitted.

  As shown in FIGS. 37 and 38, the automatic closing device 232 and the intermediate device 400, each of which is a component of the composite device 300, are arranged in the machine casing 310 of the composite device 300. ing. In other words, the machine frame in which the automatic closing device 232 is arranged and the machine frame in which the intermediate device 400 is arranged are the same machine frame 310, and in this machine frame 310, the automatic closing device 232 and the intermediate device 400 are mutually connected. Adjacent to each other. Further, as will be apparent from the description to be described later, the aforementioned delay device 500 is also arranged in the machine casing 310. For this reason, the automatic closing device 232, the intermediate device 400, and the delay device 500 are formed as a single unit. For this reason, the factory for the automatic closing device 232, the intermediate device 400, and the delay device 500 is used. Therefore, handling work such as transport to the shutter device installation site and maintenance work can be easily performed.

  As described above, in the shutter device after the modification, the opening / closing machine 13 includes the automatic closing device 232 that is the mechanical control device after the change, the intermediate device 400 after the change, and the delay after the change. A composite apparatus 300 that is a composite combination of the apparatus 500 is placed, and the composite apparatus 300 is a single unit.

  Of the automatic closing device 232, the intermediate device 400, and the delay device 500, the intermediate device 400 and the delay device 500 are disposed in the upper part of the machine casing 310. The figure is shown in FIG. 39 (A). Further, the automatic closing device 232 is disposed in the lower part inside the machine casing 310, and a plan view of the automatic closing device 232 is shown in FIG.

  The intermediate device 400 is connected between the first control wire 311 connected to the mechanical coupling device 255 shown in FIGS. 30 and 31 via the lock wire 236 and the automatic closing device 232. It is a deployed device. In other words, the intermediate device 400 is a connection device for directly connecting the first control wire 311 that is a string-like member and the automatic closing device 232.

  Next, the automatic closing device 232 will be described.

  As shown in FIGS. 37 and 38, the machine casing 310 of the composite apparatus 300 is provided with two rising portions 310B and 310C that face each other, and are formed on these rising portions 310B and 310C. The plate-like first slide member 320 shown in FIG. 39B having a length straddling the two rising portions 310B and 310C is slidably inserted into the holes 310D and 110E shown in FIG. A spring 321 is wound around the outer periphery of the first slide member 320. Due to the spring force of the spring 321, a forward force toward the rising portion 310B always acts on the first slide member 320. The direction of the forward force is a direction in which the first portion 31A of the lever member 31 provided in the opening / closing machine 13 described in FIG. 25 is moved in the A direction.

  As shown in FIGS. 25 and 37, an operating member 322 is attached to a bent portion 320A that is bent downward at the front end of the first slide member 320, and the lever member of FIG. An actuated member 323 is erected and coupled to the first portion 31 </ b> A of 31. When the first slide member 320 moves forward by the spring force of the spring 321, the operating member 322 comes into contact with the operated member 323, so that the load in the direction A shown in FIG. 25 is applied to the first portion 31 </ b> A of the lever member 31. It comes to work. As shown in FIG. 37, since the actuating member 322 of this embodiment is a head portion 324A of the bolt 324, the head portion 324A is rotated and the bolt 324 is bent by the first slide member 320. By moving the part 320A forward and backward, the distance between the actuating member 322 and the actuated member 323 can be adjusted to an appropriate dimension. After this adjustment, the lock nut 325 screwed into the bolt 324 is rotated, and the lock nut 325 is pressed against the bent portion 320A, whereby the position of the actuating member 322 relative to the actuated member 323 is set. It can be fixed in an appropriate position.

  As shown in FIG. 39B, a solenoid 326 is attached to the machine casing 310 of the composite apparatus 300, and the spring force of the spring 328 causes the plunger 327 to be solenoided by the plunger 327 of the solenoid 326. It always acts in the direction of projecting from 326. A distal end member 340 is attached to the distal end of the plunger 327, and one end of an L-shaped bent lever member 329 that is rotatable about the central axis 329A contacts the distal end member 340. Yes. As can be seen from FIG. 37, the tip member 340 having an inverted L shape has a raising and lowering member 341 on the surface opposite to the surface with which the one end of the bending lever member 329 is in contact. The raising / lowering member 341 is in contact with the lower part through which the center shaft 342A (see also FIG. 37) by a screw provided at the rising portion of the bracket 342 shown in FIG. 39 (B) is inserted. It is easy to rise and fall.

  And the roller 330 is rotatably provided in the other edge part of the bending lever member 329 used as a trigger lever member as FIG.39 (B) shows. A concave portion 320B is formed in a portion of the first slide member 320 facing the roller 330, and a portion of the concave portion 320B on the retreat side of the first slide member 320 is an inclined surface 320C.

  As shown in FIG. 39 (B), the automatic closing device 232 is provided with a first electric switch 335, and the first electric switch 335 attached to the machine casing 310 is a spring. And a swingable actuator 336 that is biased in a direction protruding from the head. Further, a protruding member 337 is attached to the first slide member 320 at a portion opposite to the concave portion 320 </ b> B, and the actuator 336 is in contact with the protruding member 337.

  A connecting member 338 including a connecting portion 338A is attached to the first slide member 320. The other end portion of the third control wire 313 is connected to the connecting portion 338A, and the end portion of the second control wire 112 is connected to the upper portion of the raising / lowering member 341. (See also FIG. 37).

  As shown in FIG. 39B, the automatic closing device 232 includes a spring 331 for applying a turning force in the U direction around the central axis 329A to the bending lever member 329, and a second control purpose. A spring 332 is provided for returning the raising / lowering member 341 to an upright state when the raising / lowering member 341 to which the end of the wire 112 is connected falls about the central axis 342A toward the solenoid 326; Due to the spring force of the spring 331, the normal roller 330 provided at the other end of the bending lever member 329 has a concave portion of the first slide member 320 as shown in FIG. It fits into 320B.

  Further, when the roller 330 is fitted into the recess 320B, the advancement of the first slide member 320 by the spring 321 described above is stopped. Thus, the position of the front end of the first slide member 320 when the forward movement is stopped by the roller 330 fitted in the recess 320B is the three positions H, I, J shown in FIGS. 38 and 39B. Of these, the H position.

  The second control wire 112 having an end connected to the raising / lowering member 341 and inserted into the outer cable 315 extends to the operating device 230 shown in FIG. 23 and protrudes from the outer cable 315. A manual operation member such as a lever member disposed in the operation device 230 is connected to the end of the second control wire 112. Further, a third control wire 313, which has an end connected to the first slide member 320 and is inserted into the outer cable 316, extends to the operating device 230 and protrudes from the outer cable 316. A manual operation member such as a lever member disposed in the operation device 230 is also connected to the end of the control wire 313.

  As can be understood from the above description, the automatic closing device 232 includes the first slide member 320 having the recess 320B, the bending lever member 329 including the solenoid 326 and the roller 330, the first electric switch 335, and the like. The first slide member 320, which is a reciprocating member that is linearly reciprocable with respect to the machine casing 310, mechanically turns on the brake device 19 as described later. It is a switching member that operates to switch off.

  Next, the intermediate device 400 shown in FIG. 39A will be described.

  As shown in FIG. 39A, the above-described machine casing 310 of the composite apparatus 300 includes a first rotating member 401 that is rotatable about the central axis 401A and a rotation that is centered on the central axis 402A. A movable second rotating member 402 is provided, and these rotating members 401 and 402 rotate in the horizontal direction. Further, the lower ends of the central shafts 401A and 202A are supported by the bottom portion 310F of the machine casing 310, and the upper ends of the central shafts 401A and 202A are supported by a bracket 403 coupled to the machine casing 310 as shown in FIG. Has been. As shown in FIG. 39 (A), the first rotating member 401 is provided with a fan-shaped portion 401B having a fan shape centered on the central axis 401A in the horizontal direction. The portion of the wire 311 that is inserted into the machine casing 310 is in a state of being detachably wound around the outer peripheral surface of the fan-shaped portion 401B, and the end portion of the first control wire 311 Are coupled to the first rotating member 401 by a coupler 404.

  And in this embodiment, as FIG. 39 (A) shows, the extending | stretching direction of the 1st control wire 311 extended to the outer side of the machine frame 310 from the fan-shaped part 401B is the fan-shaped part 401B. It matches or substantially matches the tangential direction.

  The first rotating member 401 is formed with a cam portion 401C having a length in the circumferential direction centered on the central axis 401A on the lower side of the fan-shaped portion 401B. The outer peripheral surface of the cam portion 401C, which has a longer projecting length in the radial direction from the central axis 401A than 401B, is an arcuate surface centered on the central axis 401A. Further, a coil portion of a torsion coil spring 405 is wound around the outer periphery of the central shaft 401A, and one end portion of the spring 405 is locked to a locking member 406 attached to the machine frame 310, and the other end is locked. The end portion is locked to a convex portion 401 </ b> E provided on the first rotating member 401. For this reason, the first rotation member 401 is always urged to rotate in the O direction in FIG. 39A about the central axis 401A by the spring 405, and the first rotation member 401 in this O direction is urged. The rotation limit is defined by a stop member 407 that is attached to the machine casing 310 and abuts one side surface of the cam portion 401C.

  The second rotating member 402 is provided with a fan-shaped portion 402B centered on the central axis 402A, and the fan-shaped portion 402B is a part of the protruding portion 402C that is formed horizontally from the central shaft 402A. The protrusion 408 is provided on the upper surface of the protrusion 402C. The convex portion 408 in the present embodiment is a rotatable roller such as a roller bearing. Then, the side surface 401D of the cam portion 401C of the first rotating member 401 is in contact with the convex portion 408. Therefore, in other words, the side surface 401D is opposite to the side surface 401D in contact with the stop member 407 in the cam portion 401C of the first rotation member 401. The side surface 401D is the first rotation member 401. The convex portion 408 is a contact portion in contact with the first rotation member 401 in the second rotation member 402. ing.

  As shown in FIG. 38, holes 310G and 110H are formed in the two rising portions 310B and 310C of the machine casing 310 of the composite apparatus 300, and two rising portions are formed in these holes 310G and 110H. A plate-like second slide member 410 shown in FIG. 39A having a length straddling 310B and 310C is slidably inserted. The second slide member 410 is a reciprocating member that can linearly reciprocate in the same direction as the first slide member 320. In addition, an opening hole 410A is formed in the second slide member 410, and a protrusion 411 is inserted into the opening hole 410A and provided on the lower surface of the protruding portion 402C of the second rotating member 402. The convex portion 411 in the present embodiment is a rotatable roller such as a roller bearing.

  Further, the second slide member 410 is provided with an urging force in the forward direction by the spring force of the spring 412 installed between the machine casing 310 and the second slide member 410. This is the same direction as the forward direction of one slide member 320. The forward limit of the second slide member 410 is that the convex portion 411 of the second rotating member 402 abuts on the end of the opening hole 410A, and the convex portion 408 of the second rotating member 402 is the first rotating member 401. This is defined by abutting on the side surface 401D of the cam portion 401C and the side surface of the cam portion 401C opposite to the side surface 401D abutting on the stop member 407.

  As shown in FIG. 37, the second slide member 410 that is a constituent member of the intermediate device 400 is at a height position above the first slide member 320 that is a constituent member of the automatic closing device 232. Is disposed in the machine casing 310. Further, as shown in FIG. 39A, the second slide member 410 has a first and a first portion relative to the connecting portion 338A of the connecting member 338 provided in the first slide member 320. On the forward side of the two slide members 320, 410, a step surface 410 </ b> B that is formed to face the slide members 320, 410 in the forward / backward direction is provided. As shown in FIG. 37, the connecting portion 338A has a length extending upward, and the connecting portion 338A and the stepped surface 410B are in the normal state shown in FIGS. The first and second slide members 320 and 410 are opposed to each other with a large gap in the moving direction. Then, as shown in FIGS. 40A and 40B and FIGS. 41A and 41B, when the first slide member 320 moves forward, the connecting portion 338A abuts on the step surface 410B or opens a slight gap. As shown in FIG. 42 (A), when the second slide member 410 moves backward, the first slide member as shown in FIG. 42 (B) is pressed by the connecting portion 338A by the step surface 410B. 320 also moves backwards.

  As can be seen from the above description, the intermediate device 400 serving as a connecting device for directly connecting the first control wire 311 and the automatic closing device 232 includes the first rotating member 401 and the second rotation. The first rotating member 401 of the first rotating member 401 and the second rotating member 402 is a string control member. The second rotating member 402 is a member on the first slide member 320 side serving as the switching member of the automatic closing device 232 while being a member on the wire 311 side. The first rotating member 401 is a rotating contact member because the side surface 401D is in contact with the convex portion 408 of the second rotating member 402. The rotating member 402 is also a rotating contacted member with which the contact member is in contact.

  As described above, the second rotating member 402 is provided with the fan-shaped portion 402B having the center axis 402A as the center. As shown in FIG. A large number of tooth portions 402D are formed on the outer peripheral surface. These tooth portions 402D mesh with a pinion gear 300B coupled to the rotatable central shaft 500A of the delay device 500 described above. The delay device 500 is a rotary damper, and a plurality of blades connected to the central shaft 500A via a one-way clutch are attached inside the delay device 500, and the second rotating member 402 is a central shaft. When the pinion gear 300B and the central shaft 500A rotate in the Q direction by rotating in the S direction around the 402A, the viscosity in which each blade is filled in the delay device 500 due to the connection action of the one-way clutch. Rotates in the fluid. For this reason, the second rotating member 402 rotates in the S direction at a low speed by the resistance force of the viscous fluid. On the other hand, when the second rotating member 402 is rotated in the T direction opposite to the S direction and the pinion gear 300B and the central shaft 500A are rotated in the R direction, the rotation in this direction is the cutting action of the one-way clutch. Is not transmitted to each blade. For this reason, the 2nd rotation member 402 can be rotated in the T direction at high speed.

  Note that the delay device 500 that operates as described above is disposed inside the machine casing 310 of the composite device 300 by being attached to the lower surface of the bracket 403 described above, as shown in FIGS. Has been.

  In this way, in the modified shutter device, the lock wire 236 extending in the opening movement direction of the shutter curtain 1 from the mechanical coupling device 255 serving as the second mechanical coupling device is formed in a string shape by the connecting member 294. The first control wire 311 that is a member is connected to the automatic closing device 232 via the intermediate device 400. That is, the locking wire 236 is connected to the automatic closing device 232 via the intermediate device 400. The delay device 500 delays the operation of the intermediate device 400, that is, the rotation of the second rotation member 402 of the intermediate device 400.

  As shown in FIG. 39A, a second electrical switch 420 is attached to the machine casing 310, and the second electrical switch 420 is attached in a direction protruding from the second electrical switch 420 by a spring. A swingable actuator 421 is provided. The first rotating member 401 is provided with a protruding member 422, and the actuator 421 is in contact with the protruding member 422.

  Next, the operation of the modified shutter device according to the present embodiment will be described.

  In the building where the shutter device after renovation according to the present embodiment is installed, when a disaster such as a fire occurs when the shutter curtain 1 is stopped at the fully open position or in the middle of the opening / closing movement direction, this disaster is detected. FIG. 39B shows the control of a control device by an electric circuit such as a relay circuit (not shown) or a computer to which a signal from the sensor is input (this control device may also serve as the control device 27 in FIG. 23). Since the solenoid 326 of the automatic closing device 232 shown is energized and the solenoid 326 is excited, the plunger 327 of the solenoid 326 is retracted against the spring force of the spring 328. As a result, the bending lever member 329 having one end abutting against the tip member 340 is opposed to the U direction in FIG. 39B centering on the central axis 329A against the spring force of the spring 331. It will rotate in the V direction. The state at this time is shown in FIG. When the bending lever member 329 rotates in the V direction about the central axis 329A, the roller 330 of the bending lever member 329 escapes from the concave portion 320B of the first slide member 320, so that the first slide member 320 has the spring force of the spring 321. The forward movement is stopped when the front end of the connecting member 338 provided on the first slide member 320 comes into contact with the above-described rising portion 310 </ b> B of the machine frame 310. That is, the connecting member 338 of the present embodiment is also a forward limit defining portion in the first slide member 320 for defining the forward limit of the first slide member 320.

  Further, the position of the front end of the first slide member 320 at this time is as shown in FIG. 40B among the three positions H, I, and J shown in FIGS. 38 and 39B. And the I position which is the foremost position.

  Further, when the first slide member 320 advances as described above, the actuator 336 of the first electric switch 335 is disengaged from the protruding member 337 attached to the first slide member 320, so that the first electric switch 335 is separated from the first electric switch 335. In response to the generated signal, the above-described control device stops energization of the solenoid 326.

  When the energization of the solenoid 326 is stopped, the plunger 327 is projected and moved from the solenoid 326 by the spring force of the spring 328, and the bending lever member 329 is centered on the central axis 329A by the spring force of the spring 331. Rotate in the direction. Since the first slide member 320 at this time has advanced to the limit of movement in which the front end of the first slide member 320 reaches the I position, the roller 330 of the bending lever member 329 is shown in FIG. As described above, it hits the aforementioned inclined surface 320 </ b> C of the first slide member 320. For this reason, the rotation of the bending lever member 329 about the central axis 329A in the U direction stops halfway.

  When the first slide member 320 moves forward as described above, the operating member 322 of FIG. 25 provided at the front end of the first slide member 320 is connected to the lever member 31 of the opening / closing machine 13 via the operated member 323. The first portion 31A is pressed in the direction A in FIG. Therefore, as described above, the first portion 31A swings in the A direction with the second bent portion 31D of the lever member 31 as a fulcrum, so that the brake shaft 21 and the brake drum 22 of the brake device 19 of the opening / closing machine 13 are obtained. Slides in the A ′ direction, which is the same direction as the A direction, so that the brake device 19 that has been on until then is turned off. For this reason, the shutter curtain 1 that has been stopped at a position halfway in the fully open or open / close movement direction faces downward while rotating the take-up shaft 11 by the weight of the seat plate 201B or the like below the take-up shaft 11. The above-described drive shaft 14 of the opening / closing machine 13 is also freely rotated via the drive force transmission means 12 and the shutter curtain 1 is fully closed, so that a disaster prevention zone is formed by the shutter curtain 1. Will be.

  Further, when a person discovers that a disaster such as a fire has occurred, this person is arranged in the operating device 230 shown in FIG. 23 and is connected to the end of the second control wire 112 described above. The second control wire 112 is pulled by a manual operation member such as a lever member. Since the other end of the second control wire 112 is connected to the above-described raising member 341 as described with reference to FIG. 39B, the second control wire 112 is pulled. The raising / lowering member 341 falls about the central shaft 342A and rotates toward the solenoid 326, and the above-described tip member 340 and the plunger 327 are retracted by the pressing action of the raising / lowering member 341. As a result, even before the solenoid 326 is energized and excited, the bending lever member 329 is moved via the tip member 340 by the pressing force from the raising / lowering member 341 as in the case where the solenoid 326 is energized and excited. 39B, the roller 330 of the bending lever member 329 escapes from the concave portion 320B of the first slide member 320, and the first slide member 320 moves to the spring 321. It will move forward with spring force.

  For this reason, the shutter curtain 1 is also fully closed by operating a manual operation member such as a lever member connected to the end of the second control wire 112, and a disaster prevention zone is formed by the shutter curtain 1. Can do.

  When the first slide member 320 moves to the forward limit as described above, the connecting portion 338A provided on the connecting member 338 of the first slide member 320 is shown in FIGS. 40 (A) and 41 (A). As shown in FIG. 2, the second slide member 410 abuts on or approaches the step surface 410B. Therefore, even when the first slide member 320 moves to the forward limit shown in FIGS. 40B and 41B, the second slide member 410 is shown in FIGS. 40A and 41A. As shown, it remains stopped at the position shown in FIG. Therefore, the second slide member 410 is configured as a constituent member, and the intermediate device 400 shown in FIGS. 40 (A) and 41 (A) maintains the same state as in FIG. 39 (A). To do.

  As described above, when the shutter curtain 1 reaches the fully closed position and a disaster such as a fire is resolved, the shutter curtain 1 is disposed on the operating device 230 and connected to the end of the third control wire 313 described above. The third control wire 313 is pulled by a manual operation member such as a lever member. Thereby, since the third control wire 313 is connected to the connecting portion 338A of the connecting member 338 of the first slide member 320, the first slide member 320 moves backward against the spring force of the spring 321. become. For this reason, the first slide member 320 returns from the position shown in FIG. 41B to the initial position where the front end of the first slide member 320 is at the H position in FIGS. 38 and 39B. It will be. Further, when the first slide member 320 returns to this initial position, the bending lever member 329 rotates about the central axis 329A in the U direction of FIG. 39B by the spring force of the spring 331, so that the bending lever The roller 330 of the member 329 is fitted into the concave portion 320 </ b> B of the first slide member 320, whereby the first slide member 320 on which the spring force of the spring 321 is applied acts as the front end of the first slide member 320. Reaches the H position and stops. Thereby, the automatic closing device 232 returns to the initial state before the occurrence of a disaster such as a fire.

  When the third control wire 313 is pulled by a manual operation member such as a lever member as described above, the connecting portion 338A of the connecting member 338 is brought into contact with the bracket 403 shown in FIG. As a result, when the third control wire 313 is pulled with an excessive operation force by a manual operation member such as a lever member, the bracket indicates that the excessive operation force acts on the connecting member 338 and the first slide member 320. It may be prevented at 403.

  As described above, when the first slide member 320 returns to the initial position, the brake shaft 21 and the brake drum 22 of the brake device 19 of the switch 13 are moved in the direction opposite to the A ′ direction by the spring 23 described above with reference to FIG. Therefore, the brake device 19 returns from off to on. Thereafter, by operating the above-described “open” button provided on the operation device 230, the shutter curtain 1 is moved to the fully open position as described above.

  In the modified shutter device according to the present embodiment, the locking wire 236 and the first control wire 311 are first string-like members, and the automatic closing device 232 is turned on by being pulled. A second control wire 112 that is a second string-like member for manually turning off the brake device 19 is connected. The automatic closing device 232 is connected to a third control wire 313 that is a third string-like member for returning the automatic closing device 232 to an initial state by a pulling operation.

  As described above, the occurrence of a disaster such as a fire is detected by the above-described sensor, or the person who discovers the occurrence of a disaster such as a fire pulls the second control wire 112, so that the shutter curtain 1 becomes a disaster prevention section. When the closed shutter device is moved to the fully closed position to form the above-mentioned shutter device after the repair according to the present embodiment is the above-described shutter device for disaster prevention. On the other hand, as described above, when the opening / closing movement and stoppage of the shutter curtain 1 are performed by operating the “open”, “closed”, and “stop” buttons of the operation device 230, this embodiment is referred to as this embodiment. This is when the shutter device after such modification is the aforementioned management shutter device.

  When the shutter device after renovation according to the present embodiment is a shutter device for disaster prevention and the shutter curtain 1 is closing and moving, in other words, the automatic closing device 232 is in the state shown in FIG. When the intermediate device 400 is in the state shown in FIG. 41A and the shutter curtain 1 is closing, the obstacle 34 shown in FIG. 23 is located below the shutter curtain 1 in the closing movement direction. When the shutter curtain 1 is present, the curtain sub-portion 271B disposed at the front end of the shutter curtain 1 on the closing side of the shutter curtain 1 in other words, The movable portion 270B of FIG. 26 forming the lower portion comes into contact with the obstacle 34, and the lowering of the movable portion 270B stops.

  Even if the lowering of the movable portion 270B stops, the curtain main portion 71A described above, which is composed of the curtain main body 1A and the fixed portion 270A of FIG. 26 among the seat plate 201B, is lowered from the state of FIG. Due to the relative rise of the curtain sub-part 271B (movable part 270B) with respect to the curtain main part 71A generated by this lowering, as shown in FIG. 27, the swinging member 281 disposed inside the fixed part 270A is moved. It swings upward about the fulcrum shaft 280. As a result, the lock member 250 constituting the mechanical coupling device 255 described above is rotated in the X direction of FIG. 30 by the pressing member 254 provided on the swinging member 281 to be in the state of FIG. The tooth portion 253 of the lock member 250 is engaged with the tooth portion 235 </ b> A of the rotating member 235.

  Accordingly, the rotating member 235 and the take-up reel 237 that have been rotated in the Y direction in FIG. 30 when the shutter curtain 1 is closed and moved cannot be rotated in this Y direction. The reel 237 cannot be rotated, and the shutter curtain 1 and the locking wire 236 fed out from the take-up reel 237 are coupled by the mechanical coupling device 255 having the rotating member 235 and the locking member 250 as components. become. Therefore, a downward tension force due to the weight of the shutter curtain 1 excluding the movable portion 270B, that is, the weight of the curtain main portion 71A acts on the lock wire 236.

  After the shutter curtain 1 that is closing and moving is in contact with the obstacle 34 as described above, downward tension due to the weight excluding the movable portion 270B of the weight of the shutter curtain 1 acts on the lock wire 236. When the obstacle 34 is dented and deformed, the locking wire 236 coupled to the shutter curtain 1 by the mechanical coupling device 255 is pulled downward by the amount of the dented deformation.

  Further, even if the obstacle 34 is a hard object that does not dent or deform hardly, when the lock member 250 is rotated in the X direction of FIG. 30 by the pressing member 254 of the swinging member 281, it is shown in FIG. 35. Thus, among the first tooth portion 253A, the second tooth portion 253B, and the third tooth portion 253C provided as the tooth portion 253 in the lock member 250, the first tooth portion 253A is first the tooth portion of the rotating member 235. The second tooth portion 253B and the third tooth portion 253C are then engaged with the tooth portion 235A of the rotating member 235. Of these engagements, at least the engagement of the first tooth portion 253A with the tooth portion 235A is locked to the lock member 250 in the longitudinal direction of the lock member 250 as shown in FIG. Of the first lock member side contact portion 259A and the second lock member side contact portion 259B provided as two member side contact portions 259, from the shaft 256 which is the rotation center axis of the lock member 250 The first lock member side contact portion 259A located at a distant place is pushed up by the pressing member 254 serving as the shutter curtain side contact portion 258.

  The distance between the first teeth 253A, the second teeth 253B, and the third teeth 253C is the same as the distance (tooth pitch) between the teeth 235A that are formed on the rotating member 235 at regular intervals. Alternatively, the dimensions are substantially the same, or a dimension that is an integral multiple of two or more or a dimension that is approximately an integral multiple of the spacing between the tooth portions 235A. Therefore, when the first tooth portion 253A is engaged with the tooth portion 235A, the second tooth portion 253B and the third tooth portion 253C are also engaged with the tooth portion 235A.

  Further, as described above, when the first lock member side contact portion 259A is pushed up by the pressing member 254, next, as shown in FIG. 31, the second lock member side contact portion 259B of the lock member 250. Comes into contact with the pressing member 254, and the second lock member side contact portion 259B is pushed up. That is, the pushing-up of the lock member side contact portion 259 of the lock member 250 by the pressing member 254 is performed by shifting from the first lock member side contact portion 259A to the second lock member side contact portion 259B. This push will be done.

  For this reason, the rotation of the lock member 250 in the X direction shown in FIG. 30 is continued in two stages, whereby the first tooth portion 253A of the lock member 250 is rotated by the rotation member 235. The second tooth portion 253B and the third tooth portion 253C continue to engage with the tooth portion 235A of the rotating member 235 even if the engagement with the tooth portion 235A of the second member 235A is disengaged. The tooth portion 253C slightly rotates the rotating member 235 in the Z direction in FIG. The rotation in the Z direction is a rotation in a direction in which the take-up reel 237 winds the lock wire 236, and is a direction in which the lock wire 236 is pulled downward.

  In this way, the second tooth portion 253B and the third tooth portion 253C rotate the rotating member 235 in the Z direction because the distance from the shaft 256 that is the rotation center of the lock member 250 is the first lock. Since the second lock member side contact portion 259B shorter than the member side contact portion 259A is pushed up by the pressing member 254, the second tooth portion 253B and the third tooth portion 253C move in the Z direction of the rotating member 235. The amount of rotation increases. Therefore, when the obstacle 34 is indented and deformed even when the amount of relative rise of the curtain sub-portion 271B with respect to the curtain main portion 71A when the shutter curtain 1 being moved is in contact with the obstacle 34 is constant. Similarly to the above, it is possible to secure a sufficient amount of downward pulling of the locking wire 236.

  For this reason, even when the obstacle 34 is a hard thing which does not dent-deform and hardly deforms, when the obstacle 34 dents and deforms the locking wire 236 coupled to the shutter curtain 1 by the mechanical coupling device 255. Can be pulled down sufficiently.

  In the present embodiment, the number of the tooth portions 253 provided on the lock member 250 is three, but the number may be four or more.

  Further, when the shutter curtain 1 comes into contact with the obstacle 34, the first lock member side contact portion 259A of the lock member 250 is pushed up by the pressing member 254 which is the shutter curtain side contact portion 258 as described above, Accordingly, the first tooth portion 253A of the lock member 250 that rotates in the X direction around the shaft 256 of FIG. 30 attempts to engage with the tooth portion 235A of the rotation member 235. Due to the rotation timing of the rotating member 235, the tip of the first tooth portion 253A and the tip of the tooth portion 235A come into contact with each other, so that the lock member 250 and the rotating member 235 come into contact with each other. There is a risk that 250 and the rotating member 235 are in a deadlock state.

  However, in this embodiment, as described with reference to FIG. 35, the lock member 250 and the shaft 256 serving as the rotation center axis of the lock member 250 are rotated by the long hole 267 formed in the case 233 described above. The member 235 is movable toward and away from the member 235 and is always urged in the AA direction on the rotating member 235 side by the elastic urging force of the torsion coil spring 257 which is an elastic member. When the deadlock state occurs, the lock member 250 and the shaft 256 are slightly moved in the direction of retreating from the rotating member 235 due to the reaction force from the rotating member 235 to eliminate the deadlock state, and the torsion coil spring 257 is moved forward by the elastic biasing force of 257, whereby the first tooth portion 253A of the lock member 250 continues to rotate. It will engage the teeth 235A of the timber 235.

  Therefore, according to the present embodiment, the tip of the first tooth portion 253A of the lock member 250 and the tip of the tooth portion 235A of the rotating member 235 come into contact with each other, and the lock member 250 and the rotating member 235 are brought into a deadlock state. It is possible to avoid the excessive load generated in the lock member 250 and the like when this deadlock state occurs.

  In the present embodiment, the first lock member-side contact portion 259A provided on the lock member 250 is an elastic portion by the leaf spring 260, so that the above-described deadlock state occurs. Since the elastic portion is elastically deformed by the reaction force from the rotating member 235, the lock member 250 is rotated about the shaft 256 in the W direction in FIG. This can also eliminate the deadlock state.

  As described above, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 and the lock wire 236 is pulled downward, the tension of the lock wire 236 is exerted via the connecting member 294 shown in FIG. It acts on the first control wire 311 and the first control wire 311 is also pulled.

  When the first control wire 311 is pulled, the other end of the first control wire 311 is a constituent member of the intermediate device 400 in the state of FIG. 41A as described above. Since the first rotating member 401 is connected to the first rotating member 401, the first rotating member 401 rotates in the direction P in FIG. 39A, and the cam portion 401C of the first rotating member 401 is thereby rotated. The second rotating member 402 whose convex portion 408 is in contact with the side surface 401D rotates in the T direction in FIG. As a result, the second slide member 410 in which the convex portion 411 of the second rotating member 402 is inserted into the opening hole 410A has a pressing force from the convex portion 411 as shown in FIG. , Retreats against the spring force of the spring 412.

  Accordingly, the second slide member 410 presses the connecting portion 338A of the connecting member 338 of the first slide member 320 by the step surface 410B. For this reason, the first slide member 320 also moves backward, The aforementioned brake device 19 is switched from off to on. For this reason, the shutter curtain 1 contacting the obstacle 34 in FIG. 23 during the closing movement stops the closing movement. The state of the automatic closing device 232 at this time is shown in FIG. 42B, and the position of the front end of the first slide member 320 at this time is the J position shown in FIGS.

  Further, as described above, when the first control wire 311 is pulled, the stepped surface 410B of the second slide member 410 retracting presses the connecting portion 338A of the connecting member 338 of the first slide member 320, thereby Since the first slide member 320 moves backward, the step surface 410B serves as a pressing portion of the second slide member 410 for pressing the first slide member 320, and the connecting portion 338A is pressed from the second slide member 410. It is a pressed portion of the first slide member 320 for receiving pressure.

  In the above operation, as described above, when the second rotating member 402 rotates in the T direction in FIG. 39A, the pinion gear 500B of the delay device 500 rotates in the R direction. When the pinion gear 500B rotates, the one-way clutch disengagement function of the delay device 500 functions as described above. Therefore, the pinion gear 500B rotates at a high speed in the R direction, and the second rotating member 402 also moves in the T direction. It can rotate at high speed. In other words, no delay action occurs in the delay device 500 at this time.

  In addition, as described above, when the first control wire 311 is pulled, the first rotating member 401 rotates in the P direction in FIG. 39A and the second rotating member 402 rotates in the T direction. Since the movement performed by the first rotation member 401 and the second rotation member 402 is a rotation movement, even if the length of the first control wire 311 pulled is long, The entire rotation amount of the first rotation member 401 is not transmitted to the second rotation member 402.

  In other words, in the present embodiment, as described above, the three tooth portions 253A, 253B, and 253C are provided on the lock member 250 in consideration of the case where the obstacle 34 is a hard member that does not dent and is not deformed. Even if the length by which the first control wire 311 is pulled by the action of the tooth portions 253A, 253B, 253C is increased, the first rotation of the total rotation amount of the first rotation member 401 Only when the side surface 401D of the cam portion 401C of the member 401 is in contact with the convex portion 408 of the second rotating member 402, the rotation of the first rotating member 401 in the P direction becomes the second rotating member 402. This is transmitted as the rotation of the second rotating member 402 in the T direction. Even if the first rotation member 401 rotates in the P direction after the side surface 401D of the cam portion 401C of the first rotation member 401 does not contact the convex portion 408 of the second rotation member 402, this In other words, the rotation is an empty swing, and the second rotating member 402 is stopped when the first rotating member 401 performs the empty swing.

  For this reason, even if the length by which the first control wire 311 is pulled is increased and the rotation amount of the first rotation member 401 is increased, the distance by which the first slide member 320 is retracted is not increased, As a result, when the shutter curtain 1 in the closed movement comes into contact with the obstacle 34, the position at which the first slide member 320 is retracted is indicated by the front end of the first slide member 320 in FIG. As shown, among the three positions I, J, and H shown in FIGS. 38 and 39B, the position reaches the J position. This J position is a position in front of the H position, which is the initial position, and is a position where the brake device 19 can be mechanically switched from OFF to ON by the first slide member 320, and FIG. ) Is a position where the roller 330 of the bending lever member 329 is maintained in a state of being escaped from the concave portion 320B of the first slide member 320, as in FIG. The fact that the state in which the roller 330 has escaped from the recess 320B is maintained in this way is shown in FIG. 42B, which shows the time when the shutter curtain 1 that is being closed is in contact with the obstacle 34. ing.

  As can be understood from the above description, after the shutter curtain 1 is closed and started to move due to the occurrence of a fire or the like, the shutter device according to the present embodiment is installed due to a fire or other reasons. Even if the building has a power failure, the first slide member 320 of the automatic closing device 232 switches the brake device 19 of the opening / closing machine 13 from OFF to ON when the shutter curtain 1 is in contact with the obstacle 34 during the closing movement. Thus, the shutter curtain 1 can be mechanically stopped without using electricity.

  As described above, when the above-described brake device 19 is switched from OFF to ON so that the obstacle 34 is removed after the shutter curtain 1 being closed and moved stops, the curtain sub-part 271B of the shutter curtain 1 is Since it moves down, the coupling between the shutter curtain 1 and the locking wire 236 by the mechanical coupling device 255 is released. As a result, the tension force acting on the locking wire 236 and the first control wire 311 disappears, so the first rotating member 401 rotates in the O direction of FIG. The second rotating member 402 is rotated in the S direction in FIG. 39A when the second slide member 410 is advanced by the spring 412, and the second slide member 410 is advanced, whereby the automatic closing device. The first slide member 320 of 232 advances by the spring force of the spring 321 so that the position of the front end shifts from the J position in FIG. 42B to the I position shown in FIGS. 38 and 39B. For this reason, the brake device 19 of the opening / closing machine 13 is mechanically switched again from on to off, and the shutter curtain 1 is closed and restarted.

  At this time, when the second rotating member 402 rotates in the S direction in FIG. 39A, the pinion gear 500B of the delay device 500 rotates in the Q direction, and the pinion gear 500B moves in the Q direction. Regarding the rotation, as described above, a resistance force due to the viscous fluid is generated in the delay device 500 which is a rotary damper. For this reason, the position of the front end of the first slide member 320 shifts from the J position in FIG. 42B to the I position in FIGS. 38 and 39B, and this shift causes the brake device 19 of the switch 13 to move. The switching from ON to OFF is not instantaneously performed due to the delay action of the delay device 500, and this switching time is delayed. Therefore, when the shutter curtain 1 is closed and restarted by the removal of the obstacle 34, the movement of the obstacle 34 is started with a time delay from the removal of the obstacle 34. It can be carried out.

  In the above description, the distance that the first slide member 320 moves backward when the shutter curtain 1 that is being closed is in contact with the obstacle 34 is such that the front end of the first slide member 320 is located behind the J position. When the distance is long, the roller 330 of the bending lever member 329 is fitted into the recess 320B of the first slide member 320. When such a situation occurs, even if the obstacle 34 with which the shutter curtain 1 that is moving in contact is removed is removed, the first slide member 320 is caused to move to the brake device 19 by the stopper action of the roller 330. Cannot be advanced to reach the I position where it can be switched from on to off.

  That is, the operable range of the first slide member 320 of the automatic closing device 232 that is a switching member that switches the brake device 19 on and off includes a range in which the brake device 19 cannot be switched from on to off. Will be.

  However, according to the present embodiment, as is apparent from the above, the first rotating member 401 serving as the contact member on the first control wire 311 side and the first slide member 320 of the automatic closing device 232 are arranged. Since the second rotating member 402 that is the contact member on the side is a member that rotates about the central axes 401A and 202A, of the total amount of rotation of the first rotating member 401, Only a part of the rotation amount is transmitted to the second rotation member 402, and therefore, the distance by which the first slide member 320 moves backward when the shutter curtain 1 being moved in contact with the obstacle 34. This is not a long distance in which the front end of the first slide member 320 is located at the rear side of the J position. For this reason, the first slide member 320 can be stopped at a retreat distance in which the position of the front end is the J position. Thus, after the obstacle 34 with which the shutter curtain 1 moving in contact is removed is removed, The brake device 19 can be switched from on to off.

  For this reason, according to the present embodiment, the first rotation member 401, the second rotation member 402, and the like constitute the operation range limiting means 430 that does not operate the first slide member 320 to the above-described non-switchable range. It will be.

  In the present embodiment, the lock member 250 that is a constituent member of the mechanical coupling device 255 shown in FIGS. 30 and 31 includes the tooth portion 253 of the lock member 250 as described in FIG. Since the gap adjusting means 266 for adjusting the size of the gap 265 between the tip of the rotating member 235 and the tip of the tooth portion 235A of the rotating member 235 is provided, the shutter curtain 1 is not normally in contact with an obstacle. At times, the size of the gap 265 can be set to an appropriate value. For this reason, a problem that occurs when the size of the gap 265 is larger than the appropriate value, that is, when the shutter curtain 1 that is being moved in contact with the obstacle 34, the tooth portion of the lock member 250 immediately. Since 253 does not engage with the toothed portion 235A of the rotating member 235, it is possible to solve the problem that obstacle detection is delayed and it is difficult to stop the shutter curtain 1 instantaneously. A problem that occurs when the size of H.265 is smaller than the appropriate value, that is, when the shutter curtain 1 is not in contact with the obstacle 34, for example, when the rotating member 235 or the lock member 250 vibrates or the like. The problem that the part 253 contacts or engages with the tooth part 235A can be solved.

  The first control wire 311, the second control wire 112, and the third control wire 313 described above are the first string-like member and the second string-like shape in the modified shutter device according to the present embodiment, respectively. It becomes a member and a 3rd string-like member.

  The above description is that when the shutter device after the repair according to the present embodiment is the above-described shutter device for disaster prevention. When this shutter device is the aforementioned management shutter device, that is, when the shutter curtain 1 is closed and moved by the operation of the operation device 230 described above, the shutter curtain 1 contacts the obstacle 34. Sometimes, since the tension force or the pulling force acts on the first control wire 311, the first rotation member 401 of the intermediate device 400 rotates in the P direction of FIG. The second slide member 410 retreats via the second rotating member 402, but the first slide member 320 at this time has retreated to the retreat limit where the position of the front end is the H position. 39 (A), there is a large gap between the step surface 410B of the second slide member 410 and the connecting portion 338A of the connecting member 338 of the first slide member 320. Even if the second slide member 410 is retracted, the retraction does not affect the first slide member 320.

  In other words, when the shutter device after refurbishment according to the present embodiment is a management shutter device, the first slide member 320 is a constituent member even if the shutter curtain 1 that is being closed is in contact with the obstacle 34. The automatic closing device 232 is not activated, and the automatic closing device 232 maintains the state shown in FIG.

  In the present embodiment, when the shutter device after renovation is a management shutter device, the closing shutter curtain 1 is in contact with an obstacle and the tension force or pulling force of the first control wire 311. As a result, when the first rotating member 401 of the intermediate device 400 rotates in the P direction, the actuator 421 of the second electric switch 420 performs an operation of disengaging from the protruding member 422 of the first rotating member 401. The control device 27 in FIG. 23 electrically drives and controls the electric motor device 18 and the brake device 19 of the opening / closing device 13 with a signal from the second electric switch 420, so that the shutter curtain 1 comes into contact with an obstacle. The reversal ascending is performed by opening and moving from the position to a predetermined height position. That is, after the shutter curtain 1 of the management shutter device is brought into contact with the obstacle, the shutter curtain 1 opens and moves to a height position away from the obstacle and stops.

  As described above, the refurbished shutter device according to the present embodiment has a function as a management shutter device and a function as a disaster prevention shutter device, similarly to the shutter device before renovation according to the present embodiment described above. The delay device 500 has both functions, and is only for the function as a disaster prevention shutter device.

  Further, in the shutter device after refurbishment according to the present embodiment, when the shutter device functions as a management shutter device, it is a detection means for detecting that a tension force has acted on the locking wire 236. Two electric switch means 420 are provided, and this second electric switch means is provided in the intermediate device 400 in the vicinity of the delay device 500.

  Next, an operation procedure for modifying the shutter device shown in FIGS. 1 to 22 into the shutter device shown in FIGS. 23 to 42, that is, a modification method will be described.

  First, a device or member that is not used (in other words, unnecessary) or a member that is not used in the shutter device after modification shown in FIGS. 23 to 42 is removed from the shutter device before modification shown in FIGS. Describe the work (including the work to remove them from the site (renovation site)).

  First, the coupler 77 for coupling the seat plate 1B to the curtain body 1A is removed, and the seat plate 1B is removed (in other words, separated) from the curtain body 1A (in other words, performed). In performing the operation of removing the existing seat plate 1B, a position (for example, a position where the operator can easily remove the seat plate 1B by operating the “close” button or the “open” button of the operation device 30) (for example, When working while sitting on the floor 4, the height position of the seat plate 1B is higher than the waist of the worker in a standing posture when working while standing on the floor 4. After the shutter curtain 1 is closed or moved to the position (2), the “stop” button is operated to stop it.

  As described above, both ends of the lock wire 36 are coupled to the first processing device 37 and the second processing device 38 and are folded by the mechanical coupling device 39 attached to the seat plate 1B. Since the seat plate 1B is removed from the curtain body 1A, the seat plate 1B, the first processing device 37, and the second processing device 38 are connected via the lock wire 36 because of the U-shape. It is in the state.

  For this reason, in order to be able to quickly remove the seat plate 1B removed from the curtain body 1A from the site, an operation of separating (separating) the locking wire 36 from the mechanical coupling device 39 is performed.

  The method for separating the locking wire 36 from the mechanical coupling device 39 may be arbitrary, and the first example is from the lintel 16 of the locking wire 36 shown in FIG. One of the first part 36 </ b> B extending to the shutter curtain 1 and the second part 36 </ b> C extending from the shutter curtain 1 to the lintel 16 is cut. Further, a second example of the method for separating the locking wire 36 from the mechanical coupling device 39 is the upper end portion 36D of the second portion 36C of the locking wire 36 shown in FIG. It is to remove the coupler 36F for forming a loop portion 36E for connecting 36D to the coil spring 43. Furthermore, the third example of the method for separating the locking wire 36 from the mechanical coupling device 39 is a window formed in the front portion 55C of the case 55 of the mechanical coupling device 39 in the locking wire 36. This is to cut the folded portion 36A (see FIGS. 5 and 7) exposed from the hole 55F. The fourth example of the method for separating the locking wire 36 from the mechanical coupling device 39 is that the upper end (not shown) of the first portion 36B of the locking wire 36 is moved from the reel 40 of the first processing device 37. Is to remove.

  With the above operation, the seat plate 1B is separated (separated) from the curtain body 1A, the first processing device 37, and the second processing device 38.

  Thereafter, the both ends of the seat plate 1B are removed from the left and right guide rails 6 by, for example, tilting the seat plate 1B, or removed from the site (or moved to a place that does not interfere with the subsequent work). I do.

  Next, an operation of removing the cover member that covers the second processing apparatus 38 shown in FIG. 4 is performed, so that the inside of the second processing apparatus 38 is exposed as shown in FIG.

  Moreover, the work which removes the cover member which does not illustrate the side part and upper part of the automatic closing apparatus 32 shown in FIG.2 and FIG.3 is performed, and the inside of the automatic closing apparatus 32 is exposed as FIG.17 and FIG.18 shows. To the state.

  Thereafter, the end 111D on the second processing device 38 side (opposite side to the automatic closing device 32 side) shown in FIG. 16 among the both ends of the first control wire 111 is rotated by the second processing device 38. The operation of removing (separating) from the member 42 is performed. Specifically, a coupler 111F for forming a loop portion 111E for connecting the end 111D to the rotating member 42 is provided on the end 111D of the first control wire 111 protruding from the outer cable 114. Perform removal work. Further, the end 114B on the second processing device 38 side (opposite side to the automatic closing device 32 side) shown in FIG. 16 of both ends of the outer cable 114 is removed from the machine casing 49 of the second processing device 38 ( (Separate) work.

  By these operations, the first control wire 111 and the outer cable 114 into which the first control wire 111 is inserted are separated from the second processing device 38.

  In addition to the above-described operation, the end 111A on the side of the automatic closing device 32 shown in FIG. 18 among the both ends of the first control wire 111 is connected to the slide member 120 of the automatic closing device 32. The operation of removing (separating) from the connecting portion 138A, specifically, connecting the end portion 111A to the end portion 111A of the first control wire 111 protruding from the outer cable 114 to the slide member 120 of the automatic closing device 32 The operation of removing the coupler 111C for forming the loop portion 111B to be connected to the first connecting portion 138A, and the end 114A shown in FIG. 18 on the side of the automatic closing device 32 of both ends of the outer cable 114 May be removed from the machine casing 110 of the automatic closing device 32. By these operations, the first control wire 111 and the outer cable 114 through which the first control wire 111 is inserted are separated from both the second processing device 38 and the automatic closing device 32. .

  In the present embodiment, the first control wire 111 and the outer cable 114 are to be removed from the site and are not reused at other sites. You may make it cut | disconnect the intermediate part of the 1st wire 111 for control arrange | positioned in the ceiling space 7 shown in 2 with the outer cable 114. FIG.

  Thereafter, the lintel 16E supporting the end portion 114B on the second processing device 38 side (opposite side to the automatic closing device 32 side) of the both ends of the outer cable 114 shown in FIG. The work to remove from 16 is performed.

  Further, a connecting member in which the end 112A shown in FIG. 18 on the side of the automatic closing device 32 (the side opposite to the operating device 30) of both ends of the second control wire 112 is coupled to the plunger 127 of the solenoid 126. The operation of removing (separating) from 140, specifically, the end 112A of the second control wire 112 protruding from the outer cable 115 is coupled to the plunger 127 of the solenoid 126 of the automatic closing device 32. The connecting tool 112C for forming the loop portion 112B shown in FIG. 18 for connecting to the connecting member 140 is removed. Moreover, the operation | work which removes the edge part 115A shown in FIG. 18 by the side of the automatic closing apparatus 32 of the both ends of the outer cable 115 from the machine casing 110 of the automatic closing apparatus 32 is performed. In the present embodiment, since the second control wire 112 and the outer cable 115 are used after the repair, they are left without being removed.

  Next, the first processing device 37 and the second processing device 38 perform an operation of removing the unit structure 45 connected by the base member 44 from the lintel 16. A terminal portion (not shown) of the lead wire 172 of the microswitch 170 shown in FIG. 16 arranged in the second processing device 38 is connected to the control device 27 shown in FIG. Before the operation of removing from the control unit 16, the operation of removing (separating) the terminal portion of the lead wire 172 of the microswitch 170 from the control device 27 is performed.

  The above-described operation of removing the unit structure 45 from the lintel 16 may be performed in a state where the first control wire 111 and the outer cable 114 are not separated from the automatic closing device 32.

  Moreover, the operation | work which removes the automatic closing apparatus 32 from the opening / closing machine 13 is performed.

  In this embodiment, the third control wire 113, the outer cable 116, and the manual operation member 141 shown in FIG. 1 for manually pulling the third control wire 113 shown in FIG. Not used.

  Therefore, the end 113A shown in FIG. 18 on the side of the automatic closing device 32 (the side opposite to the manual operation member 141 side) of both ends of the third control wire 113 is used as the slide member 120 of the automatic closing device 32. The operation of removing (separating) from the connected second connecting portion 138B, specifically, the end portion 113A of the third control wire 113 is connected to the slide member 120 of the automatic closing device 32. The operation of removing the coupler 113C for forming the loop portion 113B shown in FIG. 18 for connection to the second connection portion 138B, and the end portion 116A on the automatic closing device 32 side of both ends of the outer cable 116, The operation of removing the automatic closing device 32 from the machine casing 110 is not necessarily performed.

  That is, the operation of removing the automatic closing device 32 from the switch 13 is performed while the end portion 113A of the third control wire 113 and the end portion 116A of the outer cable 116 are connected to the automatic closing device 32. May be.

  Through the operations described above, from the shutter device shown in FIGS. 1 to 22, the seat plate 1B, the unit structure 45, the automatic closing device 32, the first and third control wires 111 and 113, the outer cable 114, 116 and the lintel 16E are removed and then removed from the site.

  When the lock wire 36 is to be reused at another site, first, after performing the work of removing the seat plate 1B from the curtain body 1A, the mechanical coupling device is removed from the seat plate 1B. You may make it perform the operation | work which removes 39. FIG. Thus, the seat plate 1B is separated (separated) from the curtain body 1A, the mechanical coupling device 39, the first processing device 37, and the second processing device 38, and the mechanical coupling device 39 is not shown in FIG. The state shown in FIG. As a result, only the seat plate 1B can be removed from the site first.

  In this case, as described above, the work for separating the first control wire 111 and the outer cable 114 from the second processing device 38 is performed, and thereafter, as shown in FIG. After removing the unit structure 45 connected via the wire 36 from the lintel 16, the mechanical coupling device 39, the locking wire 36 and the unit structure 45 are put on the site. Work to remove from. In addition, after that, the work on the automatic closing device 32, the second and third control wires 112 and 113 described above may be performed.

  Next, a description will be given of a work procedure for installing a new device and member in place of these removed and removed devices and members.

  First, after performing an operation of inserting both ends of the seat plate 201B into the left and right guide rails 6 by, for example, slanting the seat plate 201B instead of the seat plate 1B of the shutter device before renovation described above, FIG. As shown in FIG. 4, the work of coupling the seat plate 201B to the curtain body 1A with the coupling tool 77 is performed in the same manner as the seat plate 1B.

  Next, an operation of attaching the case 233 in which the mechanical coupling device 255 is housed to the fixing portion 270A of the seat plate 201B is performed. Note that the top and front portions of the inner and outer members 275 and 276 forming the fixing portion 270A of the seat plate 201B shown in FIG. 26 correspond to the arrangement position of the mechanical coupling device 255, similar to the seat plate 1B. In the position to be opened, an opening is formed by notching. For this reason, the mechanical coupling device 255 is attached to the fixing portion 270A of the seat plate 201B by inserting the case 277 of the mechanical coupling device 255 from above into the opening and coupling it to the fixing portion 70A. Note that the openings on the upper and front portions of the inner and outer members 275 and 276 may be pre-formed at the factory, or may be formed on-site.

  Further, as shown in FIG. 36, the direction changing device 238 is mounted and fixed on the step portion 16C of the lintel member 16A.

  Further, as shown in FIGS. 23 to 25, an operation of mounting and fixing the composite apparatus 300 on the upper part of the switch 13 is performed. Before or after this operation, the case covering the composite device 300 is removed, and the automatic closing device 232, the intermediate device 400, and the delay device 500 are exposed.

  After the above operation, an end portion 311A shown in FIG. 38 that is arranged on one side of the both ends of the first control wire 311 protruding from the outer cable 314 on the side of the composite device 300 is used as the composite device 300. After extending to the rising portion 310C of the machine casing 310 and passing through the rising portion 310C, the end portion 311A is extended to the first rotating member 401 of the intermediate device 400 and coupled to the rotating member 401 by the coupler 404. Work to do.

  In addition, the composite device 300 has an end 314A shown in FIG. 38 arranged on the side of the composite device 300 that is one end of both ends of the outer cable 314 into which the first control wire 311 is inserted. The work of inserting and fixing to the rising portion 310C of the machine casing 310 is performed.

  Next, an operation of coupling the support member 292 to the coupling member 26 (see also FIG. 36) that couples the lintel 16A of the lintel 16 illustrated in FIG. 24 and the shutter box 8 is performed.

  Thereafter, the end 311D shown in FIG. 36 arranged on the direction changing device 238 side, which is the other end of the both ends of the first control wire 311, is inserted into the downward extending portion 292B of the support member 292. At the same time, an operation of extending the space between the downward extending portion 292A and the downward extending portion 292B is performed.

  Further, an end 314B shown in FIG. 36 arranged on the side of the direction changing device 238, which is the other end of the both ends of the outer cable 314 from which the first control wire 311 protrudes, extends downward from the support member 292. An operation of inserting and fixing the protruding portion 292B is performed.

  Then, as shown in FIG. 36, the guide member 291 includes a bent portion 238B of the main body 238A of the direction changing device 238, a rising portion 16D rising from the step portion 16C of the lintel member 16A, and a support member 292. Among the two downward extending portions 292A and 292B, an operation of inserting and fixing to the downward extending portion 292A close to the lintel member 16A is performed.

  The upper end portion 236A shown in FIG. 36, which is one end portion of the both ends of the locking wire 236, extends to the guide roller 290 of the direction changing device 238 and passes through the guide roller 290. The part 236A is extended to the guide member 291 and inserted into the guide member 291 and is extended to between the lower extension part 292A and the lower extension part 292B of the support member 292.

  As shown in FIG. 36, one of the end 311D disposed on the direction changing device 238 side, which is the other end of both ends of the first control wire 311, and one of both ends of the lock wire 236. The connection member 294 is used to connect the upper end portion 326 </ b> A that is the end portion of the connection member 294.

  The upper end 112A shown in FIG. 38, which is one of the ends of the second control wire 112 projecting from the outer cable 115, is extended to the rising portion 310C of the machine casing 310 of the composite apparatus 300 and the rising end. After inserting the portion 310C, the upper end portion 112A is further extended to the raising member 341 and connected to the upper portion of the raising member 341. The upper end portion 112A of the second control wire 112 is connected to the upper portion of the raising / lowering member 341 in order to connect the upper end portion 112A of the second control wire 112 to the upper portion of the raising / lowering member 341. This is done by providing a coupler 112C that forms the loop portion 112B.

  38, which is one of the ends of the outer cable 115 from which the upper end 112A of the second control wire 112 protrudes, is used as the rising portion of the machine casing 310 of the composite apparatus 300. The work of inserting and fixing to 310C is performed.

  As the manual closing device, an existing device provided in the operating device 30 before the repair is used. The second control wire 112 and the outer cable 115 are also used as they are.

  As shown in FIG. 38, the upper end 112A is connected to the raising / lowering member 341, and the other end of the second control wires 112 inserted into the outer cable 115 is not shown. The lower end portion extends to the operating device 30 shown in FIG. 1, and the lower end portion of the second control wire 112 protruding from the outer cable 115 is manually operated such as a lever member arranged in the operating device 30. The operation member is connected. The lower end, which is the other end of the outer cable 115 from which the lower end of the second control wire 112 protrudes, is inserted and fixed in a case (not shown) of the operating device 30 before the repair.

  After extending the upper end 313A shown in FIG. 38, which is one end of the both ends of the third control wire 313, to the rising portion 310C of the machine casing 310 of the composite apparatus 300 and passing through the rising portion 310C, Further, the upper end portion 313A is extended to the first slide member 320 of the composite apparatus 300 and connected to the connection portion 338A of the connection member 338 provided on the first slide member 320. The connection of the upper end portion 313A of the third control wire 313 to the connection portion 338A of the connection member 338 is connected to the upper end portion 313A of the third control wire 313, and the upper end portion 313A is connected to the connection portion 338A of the connection member 338. This is done by providing a coupler 313C that forms a loop portion 313B for connection. In addition, the upper end portion 316A, which is one end portion of the both ends of the outer cable 316 from which the upper end portion 313A of the third control wire 313 protrudes, extends to the rising portion 310C of the machine casing 310 of the composite apparatus 300. The work of inserting and fixing to the rising portion 310C is performed.

  A manual operation member such as a lever member to which a lower end (not shown), which is the other end of the third control wire 313, is connected is connected to a case (not shown) of the operation device 230 after the repair shown in FIG. An operation to be provided inside, that is, an operation to provide a manual return device in the operation device 230 is performed. In order to return the automatic closing device 232 to the initial state, the manual return device includes a third control wire 313 and the manual operation member connected to the end of the third control wire 313. It is composed.

  The lower end portion of the third control wire 313 protruding from the outer cable 316 is extended to the case of the operating device 230 and inserted into the case, and then connected to the manual operation member disposed inside. In addition, the lower end (not shown), which is the other end of the outer cable 316 from which the lower end of the third control wire 313 protrudes, extends to the case of the operating device 230 and is inserted into the case. Do the fixing work.

  Further, the terminal portion of the lead wire (not shown) of the second electrical switch 420 arranged in the intermediate device 400 shown in FIG. 39A is extended to the control device 27 shown in FIG. Work to connect.

  After the wiring work described above is completed, the case of the removed composite device 300 is attached again so that the automatic closing device 232, the intermediate device 400, and the delay device 500 of the composite device 300 are covered with the case.

  In addition, the order of the wiring work of each control wire and outer cable described above is arbitrary, and when a plurality of workers perform the wiring work, the wiring work may be performed in parallel.

  Also, among the renovation work, work other than the control wire and outer cable wiring work, that is, the order of the installation work of each member and device is also arbitrary, and when performing the installation work by a plurality of workers, May be performed simultaneously in parallel.

Thereafter, the operation device 230 is operated to perform an operation test of the modified shutter device. If there is no problem, the “open” button of the operation device 230 is operated to open and move the shutter curtain 1 to the fully open position. . This completes the repair work.

As described above, in the present embodiment, the shutter device shown in FIGS. 23 to 42 is a modified version of the shutter device shown in FIGS.

  As described above, the shutter device before the modification (in other words, before being changed) according to the present embodiment shown in FIGS. An opening / closing machine 13 having a brake device 19 for stopping and moving the shutter curtain 1 by turning it off, and a slide member 120 slidable for switching the brake device 19 on and off, An automatic closing device 32 that is a mechanical control device for mechanically controlling the opening / closing machine 13 and the shutter curtain 1 are disposed on the shutter curtain 1 and are present in the movement path of the shutter curtain 1 during the closing movement. When contacting the obstacle 34, the shutter curtain 1 and the locking wire 36, which is a string-like member, are mechanically coupled. As a result, a mechanical coupling device 39 for applying a tension force for sliding the slide member 120 on the lock wire 36 to turn on the brake device 19 by the weight of the shutter curtain 1 and the removal of the obstacle 34 are provided. A damper 102 that is a delay device for starting the sliding member 120 switching the brake device 19 from on to off and restarting the closing movement of the shutter curtain 1 with a time delay from the removal of the obstacle 34. It has become a thing.

  On the other hand, the shutter device after renovation (in other words, after being changed) according to the present embodiment shown in FIGS. 23 to 42 is turned on and off with the shutter curtain 1 that can be opened and closed. Has an opening / closing machine 13 having a brake device 19 for stopping and moving the shutter curtain 1, and a first slide member 320 which is a slide member which is slidable to switch the brake device 19 on and off. In addition, an automatic closing device 232 that is a mechanical control device for mechanically controlling the opening / closing device 13 and a shutter curtain 1 are disposed on the shutter curtain 1, and the movement path of the shutter curtain 1 during the closing movement of the shutter curtain 1 The shutter curtain 1 and the lock wire 236 that is a string-like member. By mechanically coupling, a mechanical coupling device 255 that causes the tension force for sliding the first slide member 320 and turning on the brake device 19 to act on the lock wire 236 by the dead weight of the shutter curtain 1; The delay device for causing the first slide member 320 to switch the brake device 19 from on to off by the removal of the obstacle 34 and to restart the closing movement of the shutter curtain 1 with a time delay from the removal of the obstacle 34. 500.

  In the present embodiment, the seat plate 1B of the shutter device shown in FIGS. 1 to 22, the mechanical coupling device 39, the locking wire 36, the automatic closing device 32, the damper 102 as a delay device, and the first as an intermediate device. 2 The processing device 38 has been changed to a seat plate 201B, a mechanical coupling device 255, a locking wire 236, an automatic closing device 232, a delay device 500, and an intermediate device 400 (in other words, they have been replaced). ).

  For this reason, the seat plate 1B of the shutter device before renovation, the mechanical coupling device 39, the locking wire 36, the automatic closing device 32, the damper 102 as the delay device, and the second processing device 38 as the intermediate device are respectively changed. It has become a seat plate before being changed, a mechanical coupling device before being changed, a mechanical control device before being changed, a delay device before being changed, and an intermediate device before being changed, The shutter device seat plate 201B, the mechanical coupling device 255, the locking wire 236, the automatic closing device 232, the delay device 500, and the intermediate device 400 are the modified seat plate and the modified mechanical coupling, respectively. It is a device, a mechanical control device after the change, a delay device after the change, and an intermediate device after the change.

  As described above, when the external environment of the shutter device shown in FIGS. 1 to 22 changes (for example, when the environment to which the shutter device is exposed is changed to a poor one, When the installation location structure, layout, etc. are changed) or when the shutter device shown in FIGS. 1 to 22 changes over time (for example, the shutter device is provided with the passage of time. When the quality and performance of the shutter curtain 1, the open / close device 13, the automatic closing device 32, the mechanical coupling device 39, etc. change), the shutter device shown in FIGS. There is a need to adapt to change and aging.

  In the present embodiment, in order to adapt to these changes, at least one member or device is changed among the members and devices provided in the shutter device shown in FIGS.

  For this reason, according to this embodiment, it becomes possible to adapt the shutter device shown in FIGS. 1 to 22 to changes in the external environment and changes over time.

  In the present embodiment, the “change” in the “members and devices have been changed” described above refers to the existing members and devices (may be part or all) as the existing members and devices. In addition to changing to a different type and structure (device), including repairing existing members and devices (some or all of them) (replacement with new ones (members and devices)) ) And existing members and devices (some or all of them) may be simply moved (in other words, moved) from the location where the existing members and devices were installed. It is.

  It should be noted that the above-mentioned “changing existing members and devices to a different type and structure from the existing members and devices” and “repairing existing members and devices” involve movement. It may or may not exist. In addition, in the above-mentioned “simply moving an existing member or device from a place where the existing member or device is provided” to maintenance of the existing member or device (for example, inspection, repair, Maintenance such as maintenance) or modification (for example, addition, change, or deletion of functions) may or may not be involved.

  In this embodiment, the delay device is used in both the shutter device before the repair and the shutter device after the repair (in other words, both before and after the change of the mechanical coupling device and the mechanical coupling device). The damper 102, which is a delay device provided in the shutter device before the repair, is disposed in the second processing device 38, which is an intermediate device placed on the lintel 16, and this damper In the modified shutter device 102, the delay device 500 is changed to the delay device 500 arranged in the intermediate device 400 of the composite device 300 placed on the opening / closing machine 13.

  In other words, in the present embodiment, as described above, the damper 102 in the shutter device before the renovation is a delay device before being changed, which is disposed in the lintel 16 that is a place away from the automatic closing device 32. In addition, the delay device 500 in the shutter device after the modification is a delayed device after being changed, which is arranged closer to the automatic closing device 232 changed from the automatic closing device 32 than to the lintel 16.

  As described above, the damper 102 that is a delay device is a device that is closely linked to the automatic closing device 32 (and the opening / closing machine 13 having the brake device 19). It is often performed together with the maintenance work of the automatic closing device 32, and the damper 102 and the maintenance work of the automatic closing device 32 are performed together when the damper 102 is disposed at a location close to the automatic closing device 32. Can be efficient.

  As described above, in the shutter device after the modification according to the present embodiment, the delay device 500 that is the delay device after the change is more effective from the automatic closing device 32 than the damper 102 that is the delay device before the change. It is arranged at a location close to the changed automatic closing device 232.

  For this reason, according to the shutter device after the repair according to the present embodiment, the maintenance work of the delay device 500 is more efficient together with the maintenance work of the automatic closing device 232 than before the repair, that is, before the damper 102 is changed. Will be able to do.

  In the modified shutter device according to the present embodiment, the intermediate device 400 and the delay device 500 are arranged above the ceiling space 7 (in other words, above).

  For this reason, according to the shutter device after the renovation according to the present embodiment, the intermediate device 400 and the delay device 500 have the dust and dust flowing in from the slit 17 provided in the lintel 16 as compared with the state before the refurbishment. The effect that it becomes difficult to be influenced is acquired.

  Moreover, in this embodiment demonstrated above, the shutter curtain 1 which can be opened and closed freely, the opening and closing machine 13 which has the brake device 19 for making the shutter curtain 1 stop and movable by turning on and off, It has a slide member 120 that is slidable to switch the brake device 19 on and off, and is disposed on the shutter curtain 1 and an automatic closing device 32 for mechanically controlling the opening and closing machine 13. When the curtain 1 is in contact with the obstacle 34 existing in the movement path of the shutter curtain 1 during the closing movement, the shutter curtain 1 and the lock wire 36 are mechanically coupled to each other to thereby lock the lock wire. 36, the tension for sliding the slide member 120 to turn on the brake device 19 is provided. The mechanical coupling device 39 operated by the dead weight of the shutter curtain 1 and the removal of the obstacle 34 indicate that the slide member 120 switches the brake device 19 from on to off and the shutter curtain 1 closes and resumes the movement. The shutter 102 shown in FIGS. 1 to 22, which includes a damper 102 that is a delay device for starting with a time delay from removal, includes a seat plate 1 </ b> B, a mechanical coupling device 39, and a locking device. The first work process of deactivating the wire 36, the automatic closing device 32, the damper 102 as the delay device, and the second processing device 38 as the intermediate device, that is, removing the same and removing it from the site, and the non-functional seat plate 1B, mechanical coupling device 39, locking wire 36, automatic closing device 32, damper 102, second processing device 38 It includes another member, a seat plate 201B which is a device, a mechanical coupling device 255, a locking wire 236, an automatic closing device 232, a delay device 500, and a second work step for changing to an intermediate device 400. .

  As described above, in the shutter device before renovation according to the present embodiment, when this shutter device functions as a management shutter device, it detects that a tension force is applied to the lock wire 36. A micro switch 170 serving as detection means is provided. The micro switch 170 detects, in the modified shutter device according to the present embodiment, that tension is applied to the lock wire 236 when the shutter device functions as a management shutter device. The second electric switch means 420 is a detecting means.

  For this reason, the micro switch 170 is changed before it is detected to detect that a tension force is applied to the lock wire 36 when the shutter device before renovation according to the present embodiment functions as a management shutter device. Detection means (in other words, the first detection means), and the second electric switch means 420 is used when the shutter device before renovation according to the present embodiment functions as a management shutter device. The detection means after being changed (in other words, the second detection means) for detecting that the tension force is applied to 236 is provided.

  Note that the detection means in the shutter device after the modification may be used as it is by moving the micro switch 170 that is the detection means in the shutter device before the modification.

  In the present embodiment, when the shutter device shown in FIGS. 1 to 22 is modified to the shutter device shown in FIGS. 23 to 42, the curtain body 1 </ b> A is not replaced but is an existing one. The curtain main body 1A may be replaced with a new curtain main body 1A during the repair work.

  Further, in the present embodiment, when the shutter device shown in FIGS. 1 to 22 is modified to the shutter device shown in FIGS. 23 to 42, the left and right guide rails 6 are also replaced without replacement. However, the guide rail 6 may be replaced with a new guide rail 3 during the repair work.

  In this embodiment, the shutter device shown in FIGS. 1 to 22 is modified to the shutter device shown in FIGS. 23 to 42, but on the contrary, FIG. The shutter device shown in FIG. 42 may be modified to the shutter device shown in FIGS.

  In the embodiment described above, the shutter device shown in FIGS. 1 to 22 including the damper 102 that is a delay device disposed in the second processing device 38 placed on the lintel 16 is used. The shutter device shown in FIGS. 23 to 42 provided with the delay device 500 arranged in the composite device 300 mounted on the opening / closing machine 13 was modified, but the shutter device shown in FIGS. In the shutter device shown in FIG. 2, the arrangement location of the damper 102 as the delay device is changed from the second processing device 38 placed on the lintel 16 to the automatic closing device 32 placed on the switch 13. You may make it do.

  In other words, in the shutter device shown in FIGS. 1 to 22, the damper 102, which is a delay device, is automatically mounted from the second processing device 38 placed on the lintel 16 to the switch 13. You may make it move to the closing device 32.

  According to this, a large-scale work for repairing the shutter device shown in FIGS. 1 to 22 to the shutter device shown in FIGS. 23 to 42 is not required. That is, the seat plate 1B of the shutter device shown in FIGS. 1 to 22, the mechanical coupling device 39, the locking wire 36, the automatic closing device 32, the damper 102 as a delay device, and the second processing device as an intermediate device. The operation of changing 38 to the seat plate 201B, the mechanical coupling device 255, the locking wire 236, the automatic closing device 232, the delay device 500, and the intermediate device 400 is not necessary.

  In this embodiment, the damper 102 before moving is a delay device before being changed, and the damper 102 after moving is a delay device after being changed. That is, in this embodiment, the delay device before the change and the delay device after the change are the same (same).

  Further, in this embodiment, the place (place) where the damper 102 is fixedly arranged on the automatic closing device 32 may be an arbitrary place. For example, the slide member 120 in the automatic closing device 32 shown in FIG. The first connecting portion 138 </ b> A and the second connecting portion 138 </ b> B connected to the connecting member 138 are provided in contact with each other. In this case, gear teeth are formed on the slide member 120 and the connecting member 138, and the pinion gear 103 of the damper 102 is arranged to mesh with the gear teeth of the slide member 120 and the connecting member 138 that move forward and backward (slide). When the slide member 120 moves backward in the direction of turning on the brake device 19 from OFF, the resistance force of the viscous fluid filled in the damper 102 is prevented from being generated, and the slide member 120 turns the brake device 19 from ON. The damper 102 is fixedly arranged so that the resistance force of the viscous fluid filled in the damper 102 is generated when the head advances in the off direction.

  The delay device in the embodiment described above is provided on a stationary member such as the lintel 16, but the delay device is provided on a shutter curtain 1 (for example, a seat plate) that is an opening / closing body. It may be what you have.

  Note that the types and structures of the automatic closing device, the mechanical coupling device, and the delay device, which are mechanical control devices, are not limited to the embodiments described above, and may be of any type and structure. Also, each member constituting the shutter device, the type and structure of the device, and each member provided in the shutter device, the type and structure of the device are not limited to the above-described embodiment, and any type, It may be of a structure.

  INDUSTRIAL APPLICABILITY The present invention can be used for various shutter devices such as management and disaster prevention combined use in which the shutter curtain is an open / close body, an awning device, and various open / close devices such as a smoke-proof hanging wall device.

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is an opening / closing body 13 Opening / closing machine 16 A lintel which is a place away from an automatic closing device which is a mechanical control device before being changed 19 Brake device 32 An automatic closing which is a mechanical control device before being changed Device 34 Obstacle 35 Rotating member 36 Locking wire that is the first string member before being changed 38 Second processing device that is an intermediate device before being changed 39 Mechanical coupling device 61 before being changed 61 The first lever member 62 that is a member 62 The second lever member 102 that is a clamping member Damper 111 that is a delay device before being changed 111 A first control wire 112 that is a first string-like member before being changed 2nd control wire 113 which is not 2nd string-like member 113 3rd control wire which is the 3rd string-like member before being changed Slide member 170 before being changed for change 170 Micro switch 232 which is detection means before change Automatic closing device 235 which is a mechanical control device after change 235 Rotating member 235A Tooth portion 236 of rotating member Changed Locking wire 238 direction changing device 250, first locking member 250 Locking member 253 Teeth 255, which is an engaging portion of the locking member, mechanical coupling device 300 after being changed 300 composite device 311 after being changed The first control wire 313 that is a single string member 313 The third control wire 320 that is a third string member after being changed The first slide member after being changed to switch on and off the brake device Slide member 400 Intermediate device after being changed 420 Second electric switch means 500 being detection means after being changed 500 Change Delay device after being done

Claims (14)

An opening and closing body that can be freely opened and closed;
An opening and closing machine having a brake device for stopping and moving the opening and closing body by turning on and off;
A mechanical control device for mechanically controlling the switch, having a slide member that is slidable to switch the brake device on and off;
The opening / closing body is mechanically coupled to the opening / closing body and the string member when the opening / closing body abuts against an obstacle existing in the moving path of the opening / closing body during the closing movement. Thus, a mechanical coupling device that acts on the string-like member by a self-weight of the opening and closing body to apply a tension force for sliding the slide member and turning on the brake device,
In a switchgear comprising
The switchgear characterized in that at least one of the mechanical control device and the mechanical coupling device is changed.   2. The switchgear according to claim 1, wherein the mechanical coupling device is not changed and only the mechanical control device is changed.   2. The switchgear according to claim 1, wherein the mechanical control device is not changed and only the mechanical coupling device is changed.   The switchgear according to claim 1, wherein both the mechanical control device and the mechanical coupling device are changed.   3. The opening / closing device according to claim 2, wherein the mechanical coupling device that has not been changed includes a pair of clamping members disposed on the opening / closing body, and the opening / closing body in a closing movement contacts the obstacle. An opening / closing device in which the tension force acts on the string-like member by the pair of the sandwiching members pinching the string-like member.   5. The opening / closing device according to claim 3 or 4, wherein the mechanical coupling device after the change is provided with a plurality of tooth portions on an outer peripheral portion and is rotated by a string-like member when the opening / closing body is moved. And an engaging portion that is engageable with the tooth portion of the rotating member, and moves when the opening and closing body that is being closed is in contact with the obstacle. And a locking member that engages with the tooth portion and makes the rotating member non-rotatable.   The opening / closing apparatus according to any one of claims 2 to 6, wherein the obstacle is configured such that when the obstacle is removed, the sliding member switches the brake device from on to off and the opening / closing body resumes the closing movement. A switching device comprising a delay device for starting with a time delay from the removal of the at least one of the at least one device before the change and after the change.   8. The switchgear according to claim 7, wherein the delay device is provided both before and after the change of the at least one device, and the delay device is changed and changed. The delay device before being changed is arranged at a location away from the mechanical control device that has not been changed or the mechanical control device before being changed, and the delay device after being changed is more Further, the switchgear is arranged at a location close to the mechanical control device that has not been changed or the mechanical control device that has been changed.   9. The switchgear according to claim 8, wherein the string-like member extending from the unmodified mechanical coupling device or the modified mechanical coupling device is not modified via an intermediate device. Connected to the mechanical control device or the modified mechanical control device, the delay device before the change and / or the delay device after the change delays the operation of the intermediate device. A switchgear characterized by being a thing.   The switching device according to claim 9, wherein the intermediate device is changed, the mechanical control device after being changed, the intermediate device after being changed, and the delay device after being changed, An opening / closing device comprising a composite device in which a plurality of devices are combined, and the composite device is a unitized device.   The switchgear according to any one of claims 8 to 10, which has at least a function as a disaster prevention switchgear among functions as a management switchgear and a disaster prevention switchgear. The previous delay device and / or the changed delay device is only for the function as the disaster prevention switchgear, characterized in that the switchgear is characterized in that:   12. The switchgear according to claim 11, which also has a function as a management switchgear, and detects that the tension has acted on the string-like member when functioning as a management switchgear. An opening / closing device provided with a detecting means.   13. The switchgear according to claim 12, wherein the detection means is provided in the vicinity of the delay device before being changed and / or the delay device after being changed. An opening and closing body that can be freely opened and closed;
An opening and closing machine having a brake device for stopping and moving the opening and closing body by turning on and off;
A mechanical control device for mechanically controlling the switch, having a slide member that is slidable to switch the brake device on and off;
The opening / closing body is mechanically coupled to the opening / closing body and the string member when the opening / closing body abuts against an obstacle existing in the moving path of the opening / closing body during the closing movement. Thus, a mechanical coupling device that acts on the string-like member by a self-weight of the opening and closing body to apply a tension force for sliding the slide member and turning on the brake device,
In the repair method of the switchgear equipped with
A first operation step of deactivating at least one of the mechanical control device and the mechanical coupling device, and the at least one of the non-functionalized device as a device different from the device. And a second work process to be changed.

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