JP5524520B2 - Opening / closing member stop device for opening / closing device - Google Patents

Description

  The present invention relates to an opening / closing body stop device of an opening / closing device for stopping the closing movement when the opening / closing body being closed contacts with an obstacle, for example, a shutter device in which a shutter curtain is an opening / closing body. It can be used for various opening / closing devices such as awning devices and smoke-proof banner devices.

  In the management shutter device that is an opening / closing device and is an opening / closing body in which the shutter curtain is opened / closed, the shutter curtain is opened / closed to open / close an opening such as an entrance / exit. In addition, in the shutter device for disaster prevention, which is also an open / close device, the shutter curtain having a disaster prevention function such as smoke prevention is closed and moved in the event of an abnormal situation such as a fire. A disaster prevention zone is formed. In such a management shutter device, a disaster prevention shutter device, and a combined management and disaster prevention shutter device, an obstacle exists in the closing direction of the shutter curtain, and the shutter curtain that is being moved closes against this obstacle. When touching, the downward closing movement of the shutter curtain is stopped. A stop device for executing this stop is shown in Patent Document 1 below.

  The stopping device of Patent Document 1 mechanically stops the closing movement of the shutter curtain even in the event of a power failure when the shutter curtain that has started closing movement upon occurrence of an abnormal situation such as a fire comes into contact with an obstacle. It is a mechanical device that can.

  And the stop device of patent documents 1 is for transmitting the tension force by the dead weight of a shutter curtain when the shutter curtain which can be opened and closed freely in the up-and-down direction contacts the obstacle in the middle of the downward closing movement. A tension force transmitting member and a closing movement stop device for transmitting a tension force from the tension force transmitting member in the form of a string and stopping the closing movement of the shutter curtain are provided.

JP 2008-223459 A (paragraphs 0093, 0104, 0105, FIG. 16)

  Like this stopping device, the shutter curtain that is in contact with the obstacle during the closing movement is transmitted to the closing movement stopping device via the tension transmitting member that is a string-like tension force due to its own weight. Therefore, it is important that the tension force due to the weight of the shutter curtain acting on the tension force transmission member is closed and transmitted to the movement stop device without any trouble, for example, the tension force transmission in the form of a string. If the member is in a tortuous state or the like, it will hinder the transmission of the tension force to the movement stop device.

  The tension transmission member is wired at a construction site where the shutter device is installed, and various operations are performed at this construction site. As one of the operations, when the closing movement stopping device is disposed in the ceiling space partitioned by the ceiling member, there is a ceiling member construction work performed after the wiring work of the tension transmission member. If the operator mistakenly puts the string-like tension transmission member in a winding state or the like during construction work of the member, the tension transmission member may interfere with the transmission of the tension to the movement stop device. It will be in a state that occurs.

  For this reason, when the closing movement stopping device is arranged in the ceiling space as described above, and even when the closing movement stopping device is not arranged in the ceiling space, the tension transmission member is closed and stopped. It is required to maintain a wiring state in which tension can be transmitted to the device.

  An object of the present invention is to provide an opening / closing body stopping device for an opening / closing device capable of maintaining a tension force transmitting member in a wiring state capable of transmitting a tension force to a closed movement stopping device.

  The opening / closing body stop device for an opening / closing apparatus according to the present invention is configured to reduce the tension caused by the weight of the opening / closing body when the opening / closing body, which can be opened / closed in the vertical direction, comes into contact with an obstacle during the downward closing movement A tension force transmission member for transmitting, and a closing movement stop device for transmitting the tension force from the tension force transmission member in the form of a string and stopping the closing movement of the opening and closing body. In the opening / closing body stopping device of the opening / closing device, at least a part of the tension transmitting member is wired in a state protected from the external environment.

  In the present invention, since at least a part of the tension transmission member is wired in a state protected from the external environment, at least a part of the tension transmission member can be protected from work performed in the external environment. .

  That is, the tension transmission member according to the present invention is maintained in a wiring state capable of transmitting the tension to the closing movement stop device for work performed in the external environment, and thereby the closed movement from the tension transmission member. Tension force can be transmitted to the stop device as prescribed.

  In the present invention, wiring in a state in which at least a part of the tension transmission member is protected from the external environment can be performed in various modes depending on the relationship with the work performed in the external environment.

  In one example, at least a part of the tension transmission member is placed on the protective member and wired, whereby at least a part of the tension transmission member is protected from the external environment below the protective member by the protective member. It is to be.

  According to this, at least a part of the tension transmission member can be protected from the work performed below the protection member by the protection member, and the protection member is mounted for mounting at least a part of the tension transmission member. It can also be used as a mounting member.

  When the closing movement stopping device is disposed in the ceiling back space partitioned by the ceiling member and the ceiling member is disposed below the protective member, from the construction work of the ceiling member, the tension force transmitting member At least a part can be protected by the protective member.

  Further, the next example is to wire at least a part of the tension transmission member inside the case, thereby protecting at least a part of the tension transmission member from the external environment outside the case in this case. .

  According to this, at least a part of the tension transmission member can be protected from work performed outside the case by the case.

  Thus, when wiring at least a part of the tension transmission member inside the case, the case may be a shielding case in which all surfaces such as front and rear, left and right, and top and bottom are in a shielding state. A substantially shielding case with a part of the opening may be used.

  In addition, when the closing movement stop device is disposed in the ceiling back space partitioned by the ceiling member, and the ceiling member is disposed below the bottom plate portion of the case, from the construction work of the ceiling member, the tension force transmitting member Can be protected by the bottom plate portion of the case.

  Such a case may be a dedicated case for wiring only at least a part of the tension transmission member inside, or may be a case for the other use which is originally a case for other uses. It may be a dual-purpose case used for wiring the part inside.

  An example of a case in which this case is used as this case is that when the opening / closing movement of the opening / closing body is performed by winding and unwinding the winding shaft, the case is stored in a winding shaft in which the winding shaft is stored. It is to be a case.

  According to this, since at least a part of the tension transmission member is wired inside the take-up shaft storage case in which the take-up shaft is stored, it is possible to effectively utilize the take-up shaft storage case to transmit the tension force. At least a part of the member can be protected from work performed outside the winding shaft storage case.

  Further, when the case is the above-described dedicated case, the winding shaft storage case, and the other case, the closing movement stop device is provided in a ceiling space partitioned by a ceiling member. In the case of being arranged, a ceiling member may be arranged on the side portion of the case.

  Also by this, at least a part of the tension transmission member can be protected from the construction work of the ceiling member by the case.

  Thus, when arrange | positioning a ceiling member in the side part of the said case, you may provide the mounting part for mounting the edge part of a ceiling member in the case formation member which forms this case.

  According to this, a ceiling member can be arrange | positioned using the case for wiring at least one part of the tension transmission member inside.

  In the above, in order to transmit the tension force due to the weight of the opening / closing body when the opening / closing body contacts an obstacle in the middle of the downward closing movement to the closing movement stopping device via the tension force transmitting member, The tension force due to the body weight may be directly applied to the tension force transmission member, or the tension force due to the weight of the opening / closing body may be indirectly applied to the tension force transmission member via another member.

  One example of the latter is that the stopping device according to the present invention has a portion that spans from the stationary member that is stationary with respect to the opening / closing body to the opening / closing body, and the opening / closing body is moved by opening / closing movement of the opening / closing body. A connecting member that causes movement relative to the opening and closing member, and the opening and closing member abuts against an obstacle during the downward closing movement to mechanically connect the opening and closing member and the connecting member. And a relay device disposed on the stationary member and connected to the bridging member, and the opening and closing body when the opening and closing body abuts on an obstacle during the downward closing movement. The tension force due to its own weight is caused to act on the tension force transmission member via the bridge member and the relay device.

  When the above-described bridging member is provided in the stopping device according to the present invention, the bridging member, which is a mechanical member, may be of any shape and structure. That is, the bridging member may be, for example, a rod-like member or a block-like member that can be telescopically expanded or contracted, or a string-like member. When the bridge member is a string-like member, the string-like member may be a wire made of metal, a string made of synthetic resin, a rope, or a chain including a roller chain or a ball chain. Other elongated members may be used.

  When the bridging member is a string-like member, the string-like member has a U shape in which a portion corresponding to the mechanical coupling device is a folded portion, and one end of the string-like member Is connected to a winding device that winds up freely, and the winding device is arranged on the stationary member that is stationary relative to the movable body that can be opened and closed or on a stationary member that is different from the stationary member. Also good. According to this, the string-like member can be made to follow the opening / closing movement of the opening / closing body by winding and unwinding of the winding device, so that the opening / closing body of the string-like member is moved by opening / closing movement of the opening / closing body. Movement can occur.

  Further, when the bridging member is a string-like member, the string-like member extends straight except for the portion corresponding to the mechanical coupling device, and one end of the string-like member is The stationary member that is immovable with respect to the openable / closable opening / closing body is made to reach, and the other end of the string-like member is made to reach this stationary member or another stationary member different from the stationary member. Also good. Also by this, it is possible to cause the string-like member to move relative to the opening / closing body, that is, to move relative to the opening / closing body by opening / closing movement of the opening / closing body.

  Furthermore, the closing movement stop device described above for stopping the closing movement of the opening / closing body by transmitting the tension force due to the weight of the opening / closing body via the tension force transmitting member may be of any structure and type.

  That is, this closing movement stopping device may be a device for stopping the closing movement of the opening / closing body by itself, or may be constituted by a combination of a plurality of devices, means and the like.

  In both cases where the closing movement stop device is the former and the latter, the opening / closing movement of the opening / closing body is performed by winding and unwinding the winding shaft, and the winding shaft is rotated for winding and unwinding. When the opening / closing machine having the brake means is used, the closing movement stopping device may be configured to include the brake means.

  According to this, the closing movement stop device for stopping the closing movement of the opening / closing body can be configured using the brake means of the opening / closing machine that rotates the winding shaft to wind up and feed out the opening / closing body.

  The present invention described above can be applied to any opening / closing device. One example is a shutter device whose opening / closing body is a shutter curtain. The present invention can also be applied to an opening / closing device such as an awning device or a smoke-proof banner device.

  When the present invention is applied to a shutter device, the shutter device may be a shutter device for an arbitrary use. That is, the shutter device to which the present invention is applied may be a management shutter device in which the shutter curtain is opened and closed to open and close an opening such as an entrance, and the shutter curtain having a disaster prevention function such as smoke prevention fires. It may be 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 the above occurs, and may also be a combined shutter device for management and disaster prevention. The disaster prevention shutter device includes a disaster prevention shutter device for lifting means for closing 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 of a plurality of slats, a sheet, a plurality of pipes connected by link members, or a plurality of panels. It may be formed by a net, and may be formed by combining a plurality of members among these members.

  Further, at least one of the opening and closing movements of the shutter curtain may be performed by an automatic driving device such as an electric motor or may be performed manually.

  Further, the closing movement of the shutter curtain facing downward may be performed by the weight of the shutter curtain, or may be performed by adding the driving force of a driving device such as an electric motor to the weight of the shutter curtain. Good.

  Further, the means for stopping the shutter curtain before closing and moving in the downward direction may be a brake means or a shutter curtain such as a seat plate provided at the end of the shutter curtain on the closing side. The latching means provided with the latching member latched to a structural member may be sufficient.

  For the above-mentioned brake means, for the shutter device that performs the opening and closing movement of the shutter curtain by winding and unwinding of the shutter curtain by the winding shaft, an opening / closing machine that is a driving device for rotating the winding shaft is connected to the electric motor. Braking means are included which are configured with the means.

  Further, the locking means includes one that stops the shutter curtain at the fully open position when the locking member is locked to a shutter curtain constituent member such as a seat plate when the shutter curtain reaches the fully open position. included.

  Further, the shutter curtain can be opened and closed by winding and unwinding the shutter curtain using the take-up shaft as described above, or the shutter curtain can be opened and closed by moving the shutter curtain all over like an overhead door. It may be performed while maintaining the same shape as the overall shape when reaching the closed position (including a shape that is somewhat deformed but substantially the same shape), or opening the shutter curtain The movement may be performed while the shutter curtain is deformed into a curved shape or the like, or a plurality of structural members such as a panel constituting the shutter curtain are connected when the shutter curtain is closed and moved while the shutter curtain is opened ( When storing the shutter curtain), they are separated from each other, and these components are overlapped in the thickness direction. It may be adapted to fit.

  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 driving force of the driving device in addition to its own weight. For the shutter device used in the above, a return spring by a torsion coil spring or a mainspring spring that accumulates a return force during the closing movement of the shutter curtain is provided on the winding shaft, and the upward opening movement of the shutter curtain is performed. The return force accumulated in the return spring may be used as an auxiliary force.

  According to the present invention, it is possible to obtain an effect that the tension transmission member can be maintained in a wiring state in which tension can be transmitted to the closed movement stop device.

FIG. 1 is a front view showing the entirety of a shutter device serving as an opening / closing device 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. FIG. 6 is a front sectional view of FIG. 5 showing the structure of the mechanical coupling device. FIG. 7 is a front view showing the mechanical coupling device 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 for attaching the mechanical coupling device 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 shows a state in which the swinging member that is a member on the curtain sub-portion that is the opening / closing body sub-portion is connected to the second lever member that is the operating member of the mechanical coupling device It is a front view which shows the connection means. FIG. 12 is a perspective view showing the hook portion shown in FIG. 11. 13 is a cross-sectional view taken along line S13-S13 in FIG. FIG. 14 is a view similar to FIG. 13 showing when the curtain sub-portion, which is the opening / closing body sub-portion, abuts against the obstacle, and the curtain sub-portion is raised with respect to the curtain main portion, which is the opening / closing-body main portion. is there. FIG. 15 shows a state in which when the shutter curtain being moved is in contact with an obstacle, the locking wire that is a bridging member is locked by the mechanical coupling device, and the shutter curtain and the locking wire are coupled. It is a figure similar to FIG. 6 shown. FIG. 16 is a diagram showing the internal structure of the second processing device of the mechanical obstacle detection device shown in FIG. FIG. 17 is a front view showing an internal structure of the automatic closing device shown in FIG. 1 and the like. FIG. 18 is a plan view showing the internal structure of the automatic closing device. FIG. 19 is a view similar to FIG. 18 showing when the solenoid of the automatic closing device is energized and excited 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 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 shows a unit structure constituting the mechanical obstacle detection device and a pressing means for pressing the shutter curtain to the side opposite to the arrangement position of the unit structure in the lintel that is a stationary member. It is a figure similar to FIG. 2 which shows the arrange | positioned embodiment. FIG. 23 is a perspective view of the pressing means. FIG. 24 is a plan view of the pressing means. FIG. 25 shows a tension force transmission member for transmitting the tension force due to the weight of the shutter curtain to the automatic closing device constituting the closing movement stopping device when the shutter curtain during the closing movement comes into contact with the obstacle. It is the same figure as FIG. 2 which shows another embodiment which made the wiring state about the 1st wire for control which differed from the wiring state shown by FIG. FIG. 26 is a view similar to FIG. 1 showing the shutter device in the embodiment in which the bridging member is a linearly extending roller chain except for the portion corresponding to the mechanical coupling device. 27 is a cross-sectional view taken along line S27-S27 in FIG. FIG. 28 is a diagram illustrating the processing apparatus illustrated in FIG. 27, and is a diagram in which the front and back are reversed. FIG. 29 is an enlarged front view showing a part of the seat plate of the shutter curtain in the embodiment of FIG. FIG. 30 is a front sectional view showing the internal structure of the seat plate shown in FIG. 31 is a cross-sectional view taken along line S31-S31 of FIG. 32 is a cross-sectional view taken along line S32-S32 of FIG. FIG. 33 is a view similar to FIG. 30 showing a state in which the ratchet member, which is an operating member of the mechanical coupling device, is engaged with the ratchet wheel when the shutter curtain in the closed movement comes into contact with the obstacle. . FIG. 34 is a view similar to FIG. 32 when the state of FIG. 33 is reached.

  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 management and disaster prevention shutter device. 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.

  FIG. 1 shows the entire shutter device according to the present embodiment, and FIG. 1 shows a half in which the opening / closing movement direction is up and down, and the shutter curtain 1 that is closed and moved downward is closed to about half. It shows when it is in the closed state. 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 case 8 is disposed in a ceiling space 7 partitioned by the ceiling member 5 with respect to the entrance 2 and the shutter case 8 is shown 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 case 8, and the take-up shaft 11 is rotatably supported by the left and right side plate portions 8A and 8B shown in FIG. Yes. Therefore, the shutter case 8 is a take-up shaft storage case. 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.

  In addition, the opening / closing machine 13 of this embodiment is attached to a bracket member 15 coupled to one side plate portion 8B of the left and right side plate portions 8A and 8B of the shutter case 8.

  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. 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. 3 is a cross-sectional view showing the internal structure of the switch 13. As shown in FIG. 3, the opening / closing machine 13 has a DC or AC electric motor means 18 and a brake means 19 arranged in parallel in the axial direction. The drive shaft 14 described above is an electric motor means. The rotary shaft is fixedly arranged at the center of the 18 rotating rotors 18A. A disc-shaped brake shoe 20 is coupled to the end of the drive shaft 14 on the brake means 19 side. The brake means 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 means 18 by the spring 23, and therefore the brake means 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 means 18 at this time does not rotate due to the braking force of the brake means 19.

  On the other hand, when the solenoid 24 arranged in the brake means 19 is energized, the brake shaft 21 and the brake drum 22 slide in a direction away from the electric motor means 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 means 19 is turned off. Therefore, at this time, the drive shaft 14 of the electric motor means 18 can be rotated by energizing the coil 25.

  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.

  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 has reached a halfway position (half-open state), the brake means 19 receives a signal from the “close” button by a control device (not shown). Since the solenoid 24 is energized, the brake means 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 it reaches, the control device that receives a signal from a sensor (not shown) that detects the fully closed position cuts off the energization of the solenoid 24 and the brake means 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 solenoid 24 of the brake means 19 is energized by the control device that receives a signal from the “open” button, so that the brake means 19 is turned off. The coil 25 of the electric motor means 18 is energized by the control device. 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 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 means 19 is turned on by the spring 23. The energization of the coil 25 is cut off by the control device.

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

  As can be seen from the above description, the floor 4, the guide rail 6, the shutter case 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 case 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.

  Further, as shown in FIG. 3, a lever member 31 is disposed at the end of the brake shaft 21 opposite to the electric motor means 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 means 18, the first portion 31A swings in the A direction with the second bent portion 31D as a fulcrum, so that the brake shaft 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 means 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. Therefore, the brake means 19 can be turned off at this time without energizing the solenoid 24.

  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 opening / closing machine 13 according to this embodiment can turn off the brake means 19 by manual operation. If it is not necessary to turn off the brake means 19 by manual operation, the second portion 31B may be omitted except for the second bent portion 31D.

  4 shows a mechanical obstacle for mechanically detecting the obstacle 34 when the seat plate 1B of the shutter curtain 1 abuts against the obstacle 34 shown in FIG. A 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 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, in the present embodiment, the first processing device 37 is a winding device for winding the locking wire 36 so as to be unwound.

  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.

  Further, the first processing device 37 and the second processing device 38 are disposed on the upper surface of the base member 44 fixedly disposed on the lintel member 16A of the lintel 16 described above by bolts or welding. The first processing device 37 and the second processing device 38 are unit structures 45 connected by a base member 44. Accordingly, the first processing device 37 and the second processing device 38 are disposed on the lintel member 16A of the lintel 16 in order to perform the operation of laying the locking wire 36 between the lintel 16 and the shutter curtain 1 or the like. The work can be completed simply by performing the work of fixing and installing the unit structure 45 to the lintel 16A of the lintel 16 with bolts or welding, and the 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 described above.

  The arrangement positions of the first processing device 37 and the second processing device 38 on the lintel member 16 </ b> A of 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.

  As a result, the locking wire 36 can be bridged between the unit structure 45 and the mechanical coupling device 39 vertically along the shutter curtain 1 and without contacting the shutter curtain 1. ing.

  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 first and second lever members 61 and 62 are swing members that can swing up and down around the same fulcrum shaft 63.

  Of these first and second lever members 61 and 62, the lower second lever member 62 is an operating member in the mechanical coupling device 39 of the present embodiment.

  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 hook 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 hook member 66, the fulcrum shaft 63 is attached to the second lever member 62. A downward swinging force is acting around the center. A hook-like hook portion 66 </ b> A is formed at the end of the hook member 66. 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 locking wire 36, the friction members 67 and 68 are connected to the portion 36A and the lever members 61 and 62, respectively. The frictional force between the two is increased to secure the clamping 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 wearing lock, the portion 36A is pushed upward, so that the pinching lock of the portion 36A by the friction members 67 and 68 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 with reference to 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 of the shutter curtain 1. 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 present embodiment includes a curtain main portion 71A and a curtain sub-portion 71B. The curtain main portion 71A includes a curtain main body 1A and a seat plate 1B. The curtain sub-part 71B is constituted by the movable part 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. 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 that extends in the width direction of the shutter curtain 1 is housed in the fixed portion 70A. The fulcrum shaft 80 is the above-described inner member 76. It is a part formed integrally. Further, as shown in FIG. 14, when the movable part 70B is raised with respect to the fixed part 70A, that is, when the shutter curtain 1 being moved in contact comes in contact with the obstacle 34 shown in FIG. The extending portion 79A of the rising portion 79 of the portion 70B pushes up the protruding piece 81A of the swinging member 81, whereby 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.

  Since the swinging member 81 swings around the fulcrum shaft 80 when the movable part 70B of the seat plate 1B forming the curtain sub-part 71B ascends as described above, Since the swing member 81 is a member on the curtain sub-portion 71B side, and the curtain sub-portion 71B is an opening / closing member sub-portion as described above, the swing member 81 is a member on the opening / closing member sub-portion side. It becomes the opening-and-closing body side part side member which is.

  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. , A pressing member 91 which is a folded product of a plate material 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, which is the curtain sub-portion 71B, swings the swinging member 81 upward about the fulcrum shaft 80, the pressing member 91 that presses the convex portion 62B causes the pressing member 91 to press FIG. 2, 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 in the lock wire 36 is a swing member that can swing around a common fulcrum shaft 2 2. The lever members 61 and 62 are clamped by a large load from above and below by the friction members 67 and 68, and by this clamping, the portion 36A of the lock wire 36 is locked. The curtain 1 and the locking wire 36 are mechanically coupled by the mechanical coupling device 39.

  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 shown in FIGS. 11 and 12, the pressing member 91 disposed on the protruding piece 81A of the swinging member 81 is a base fixed to the protruding portion 81A with a fixing tool 89 such as a screw. It has a portion 91A, a pressing portion 91B formed by bending from the base portion 91A, and a hook portion 91C formed by bending from the base portion 91A in the same manner as the pressing portion 91B. As described above, the pressing portion 91B serves as an operating member of the mechanical coupling device 39 when the extending portion 79A of the movable portion 70B swings the swing member 81 upward about the fulcrum shaft 80. The second lever member 62 is swung upward about the fulcrum shaft 63.

  Further, as can be seen from FIG. 11, the hook portion 91C of the pressing member 91 is opposed to the hook portion 66A of the hook member 66 attached to the second lever member 62 in the vertical direction. When the movable portion 70B is lowered by its own weight due to the removal of the object 34 and the swing member 81 swings downward about the fulcrum shaft 80, the hook portion 91C of the pressing member 91 is attached to the second lever member 62. The hook portion 66A of the hook member 66 is hooked from above. For this reason, the second lever member 62 is forcibly swung downward about the fulcrum shaft 80 by the hooking action of the hook portion 91C of the pressing member 91.

  Therefore, the hook body 91 </ b> C of the pressing member 91 provided on the swing member 81 and the hook portion 66 </ b> A of the hook member 66 provided on the second lever member 62 constitute a curtain body sub part side member. A connecting means 88 for connecting the swing member 81 and the second lever member 62, which is an operating member in the mechanical coupling device 39, is configured. The connecting means 88 is an obstacle. When the movable portion 70B of the seat plate 1B, which becomes the curtain sub-portion 71B, is lowered by its own weight with respect to the curtain main portion 71A by removing 34 or the like, the swing member 81 and the second lever member 62 are connected. It has become.

  In the present embodiment, the hook portion 91 </ b> C provided on the swing member 81 is formed as a part of the pressing member 91 for swinging the second lever member 62 upward about the fulcrum shaft 63. Therefore, the number of members is reduced and the structure is simplified accordingly.

  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 clamped and locked, before the shutter curtain 1 comes into contact with the obstacle 34, in other words, when the movable portion 70B of the seat plate 1B reaches the lowest position with respect to the fixed portion 70A. In this case, 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 swinging 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 attachment structure using these protrusion pieces 55D is the same, the attachment structure for one protrusion piece 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. 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. With the friction members 67 and 68 of the two lever members 61 and 62 provided in the device 39, the portion 36A of the lock wire 36 can be clamped and locked 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 operation 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 according to the present embodiment and the building where the shutter device according to the present embodiment is installed. This is performed after the guide rail 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).

  In the present embodiment, as described above, the mechanical obstacle detection device 35 including the locking wire 36, the first processing device 37, the second processing device 38, and the mechanical coupling device 39 is unitized. Therefore, 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, and the first processing device 37 and Since the second processing device 38 is a unit structure 45 and only the first processing device 37 and the second processing device 38 are unitized, the first processing device 37 and the second processing device 38 are sprinkled. The attachment work to the length 16 can be easily performed.

  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. Of the locking wire 36, the portion 36 </ b> A shown in FIGS. 6 and 15 corresponding to the mechanical coupling device 39 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 device 37 due to the weight of the shutter curtain 1. The lengths of the first portion 36B and the second portion 36C are increased. Further, when the shutter curtain 1 is moved upward by the rotation of the drive shaft 14 of the opening / closing device 13 described above, the locking wire 36 is slackened. The locking wire 36 is wound up by the reel 40 that rotates in the direction, whereby the lengths of the first portion 36B and the second portion 36C are shortened. For this reason, the locking wire 36 follows the opening / closing movement of the shutter curtain 1.

  The first processing device 37 of the unit structure 45 is a winding device for winding the locking wire 36 so as to be freely drawn out.

  FIG. 16 shows the internal structure of the second processing apparatus 38 that constitutes the unit structure 45 together with the first processing apparatus 37. As described above, the second processing device 38 is provided with the rotating member 42 in which the end of the lock 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 arranged 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 a rotation gear 42 than when the rotation member 42 is a gear with gear teeth formed on the entire circumference. 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 case 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.

  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 opened position. It is intended to close the doorway 2 of FIG. 1 by the shutter curtain 1 having a smokeproof property and / or a fireproof property. 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. Therefore, the second processing device 38 is a relay device for connecting the lock wire 36 and the first control wire 111. 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 the switch 13 is disposed.

  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. Thereby, 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.

  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 shown in FIG. 18 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 fitted into the recess 120 </ b> B, and the forward movement of the slide member 120 by the spring 121 is stopped by this fitting. 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 apparatus 38 shown in FIG. 4, is the first of the connecting member 138 of the slide member 120. The end portion of the second control wire 112 is connected to the connecting portion 138A, the end portion of the third control wire 113 is connected to the connecting member 140 connected to the plunger 127, and the end portion of the connecting member 138 of the slide member 120 is connected. 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 a building where the shutter device 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 device (not shown) to which a signal from a sensor that detects the disaster is input. As a result, 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 moves backward 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 stops energizing the solenoid 126.

  When the energization of the solenoid 126 is stopped, the plunger 127 protrudes 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 limit of movement in which 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 means 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 means 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.

  In addition, when a person discovers that a disaster such as a fire has occurred, this person is placed in the operating device 30 shown in FIG. 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 means 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.

  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.

  As described above, 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 moved to the manual operation member 141 shown in FIG. Pull by the operation. 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 means 19 of the opening / closing machine 13 are moved in the direction opposite to the A ′ direction by the spring 23 described above with reference to 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 case where a coupler 36E for forming a loop portion 36D 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 36E is elongated in the thickness direction of the shutter curtain 1 by crushing the coupler 36E. According to this, the hole 57 through which the second portion 36C enters and exits is orthogonal to the elongated direction of the coupler 36E, 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 36E becomes the outer portion of the long hole 57 when the shutter curtain 1 opens and moves 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 36E from entering the inside of the long hole 57 and the shutter curtain 1 to be opened and moved 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 that receives a signal from a sensor that detects a disaster such as a fire, 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 turns off the brake means 19 of the switch 13, and the shutter curtain 1 is closed and moved downward from the fully open position. Sometimes, 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 71B arranged at the front end portion on the closing side of the shutter curtain 1 is 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 portion 70B stops, the curtain main portion 71A composed of the curtain main body 1A and the fixed portion 70A of the seat plate 1B is lowered. When the curtain sub-portion 71B constituted by 70B rises relative to the curtain main portion 71A, the swinging member 81 shown in FIG. Of the second lever member 62 of the mechanical coupling device 39 shown in FIG. 15 or the like and the upward swing about the fulcrum shaft 63 of the mechanical coupling device 39 shown in FIG. The second lever member 62 sandwiches the above-described folded portion 36A of the locking wire 36 between the friction members 67 and 68, and locks the locking wire 36 by this clamping. Due to the clamping lock, 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.

  Thus, when the curtain sub-portion 71B contacts the obstacle 34 and the curtain sub-portion 71B moves relatively upward with respect to the curtain main portion 71A, the second lever member 62 of the mechanical coupling device 39 is a fulcrum. In order to perform an upward swinging motion about the shaft 63, the second lever member 62 serves as the operating member of the mechanical coupling device 39 as described above.

  In addition, since the lock wire 36 until then follows the closing movement of the shutter curtain 1 and is fed out from the reel 40 of the first processing device 37 described above, A relative movement occurs in the locking wire 36. As described above, when the folded portion 36A of the lock wire 36 is sandwiched between the friction members 67 and 68 and the lock wire 36 is locked, the relative movement is eliminated and the obstacle 34 is recessed. Based on the deformation, the first portion 36B and the second portion 36C of the lock wire 36 that are folded at the folded portion 36A have a weight of the shutter curtain 1 above the curtain sub-portion 71B, that is, Since the weight of the curtain main portion 71A acts, a large tension force acts on the lock wire 36, particularly on the second portion 36C.

  As shown in FIG. 15, the folded portion 36 </ b> A of the lock wire 36 is pinched and locked by friction members 67 and 68 having a large frictional force provided on the first lever member 61 and the second lever member 62. Therefore, the friction members 67 and 68 can prevent the locking wire 36 from sliding with respect 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.

  Further, 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. By one guide member 60A of the guide members 60 and the second lever member 62, a detour portion 36F that is not linear is formed. 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 36F 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 is applied, the rotating member 42 of the second processing device 38 shown in FIG. 16 is rotated in the direction D in FIG. 16 against the above-described return spring 100 by this tension. 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. By the tension transmitted from the first control wire 111, the spring 121 moves backward against the spring 121.

  Therefore, the first control wire 111 is a tension force transmitting member for transmitting the tension force from the locking wire 36 based on the weight of the shutter curtain 1 from the second processing device 38 to the slide member 120 of the automatic closing device 32. It has become. The second processing device 38 is a relay device for relaying the tension force from the lock wire 36 based on the weight of the shutter curtain 1 to the first control wire 111.

  As described above, when the first control wire 111 is pulled, the pull length and the amount by which the slide member 120 moves backward are defined by the length of the long hole 42B of the rotating member 42 shown in FIG. Therefore, the slide member 120 whose front end has reached the I position shown in FIGS. 18 and 20 does not move back to the retreat limit where the front end position of the slide member 120 becomes the H position in FIG. Is stopped at a position where the position becomes the J position, that is, a position between the H position and the I position. 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 the case of FIG. 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 of FIGS. 3 and 17 is moved by the operating member 122 of the slide member 120. The load that has been pressed in the direction A in FIG. 3 is released. For this reason, the brake means 19 of the switch 13 is switched from off to on. When the brake means 19 is turned on, the drive shaft 14 of the opening / closing machine 13 cannot rotate, so that the winding shaft 11 to which the upper end of the shutter curtain 1 is coupled cannot also rotate.

  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 including the first lever member 61 and the second lever member 62 that clamp and lock the locking wire 36 with the friction members 67 and 68, and the mechanical coupling device 39. 2 The mechanical structure constituted by the processing device 38, the slide member 120 as a member of the automatic closing device 32 that slides mechanically, the brake means 19 of the switch 13 that is mechanically turned on, etc. Is called. 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. However, the shutter curtain 1 that is in contact with the obstacle 34 during the closing movement can be mechanically stopped.

  As can be seen from the above description, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 by the brake means 19 and the automatic closing device 32 of the switch 13 shown in FIG. A closing movement stopping device 200 is configured to stop the closing movement of the shutter curtain 1.

  In the present embodiment, as shown in FIG. 1, the unit structure 45 including the second processing device 38 to which one end of the first control wire 111 is connected, and the first control wire The automatic closing device 32 to which the other end of the wire 111 is connected is arranged at a position shifted to the same side with respect to the center position in the width direction of the shutter curtain 1. For this reason, the length of the 1st control wire 11 can be shortened rather than the case where the unit structure 45 and the automatic closing device 32 are arrange | positioned in the position on the opposite side mutually with respect to the width direction center position of the shutter curtain 1. become. As a result, the aforementioned tension force acting on the first control wire 111 when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 can be instantaneously input to the automatic closing device 32. The closing movement of the can be stopped quickly.

  If the obstacle 34 is removed after the shutter curtain 1 being closed and moving contacts the obstacle 34 as described above and the brake means 19 of the switch 13 is turned on, the curtain sub-part of the shutter curtain 1 is removed. Since the movable portion 70B of the seat plate 1B constituting the 71B descends by its own weight, the movable portion 70B itself is lowered by the first lever member 61 of the mechanical coupling device 39 and the friction members 67 and 68 of the second lever member 62. The clamping lock of the locking wire 36 is released, and thereby the mechanical coupling state between the shutter curtain 1 and the locking wire 36 by the mechanical coupling device 39 is released.

  Further, when the movable part 70B is lowered by its own weight by removing the obstacle 34 as described above, the swinging member 81 shown in FIGS. The oscillating member oscillates downward about the fulcrum shaft 80, and the oscillating member also lowers the pressing member 91 described in FIG. The pressing member 91 is provided with a hook portion 91C that constitutes the connecting means 88 shown in FIGS. 11 and 15, and the hook portion 91C is, as shown in FIG. Since the mechanical coupling device 39 is disposed so as to be vertically opposed to the hook portion 66A of the hook member 66 attached to the second lever member 62 serving as the aforementioned operating member, that is, the second lever member. The hook 91 </ b> C of the pressing member 91 provided on the swinging member 81, which is a member disposed below 62, is also the hook 66 </ b> A of the hook 66 attached to the second lever member 62. Thus, the pressing member 91 is also swung downward about the fulcrum shaft 80 of the swinging member 81 because the hook 66A is vertically opposed to the hook 66A. When descending, the second lever member 62 by hooking action of the hook portion 66A of the hook portion 91C will be induced to forcibly downward swing around the fulcrum shaft 63.

  Therefore, the locking of the locking wire 36 by the friction members 67 and 68 of the first lever member 61 and the second lever member 62 is performed with a large load. For this reason, even if the friction member 68 of the second lever member 62 is Even if the friction member 68 of the second lever member 62 is difficult to separate from the lock wire 36 due to a part of the wire entering between the twists of the lock wire 36, this separation is more reliably performed. Thus, the mechanical coupling state between the shutter curtain 1 and the lock wire 36 by the mechanical coupling device 39 can be more reliably released.

  As described above, when a part of the friction member 68 of the second lever member 62 enters between the twists of the lock wire 36, the friction member 68 of the second lever member 62 is separated from the lock wire 36. In order to be able to perform this separation even when it is difficult to separate, an elastic member such as a spring is interposed between the first lever member 61 and the second lever member 62, thereby locking. A downward turning force, which is a direction away from the wire 36, may always be applied to the second lever member 62 by the elastic force of the elastic member. Such a separating means may be used in combination with the connecting means 88 described above, or only the separating means may be used alone without using the connecting means 88.

  When the mechanical coupling state between the shutter curtain 1 and the locking wire 36 by the mechanical coupling device 39 is released as described above, the tension force acting on the locking wire 36 disappears, and thus The rotating member 42 of the second processing device 38 on which the return force by the return spring 100 of FIG. 16 is applied rotates in the direction C of FIG. 16, and is retracted by the first control wire 111 by this rotation. The slide member 120 of the automatic closing device 32 pulled in the direction is advanced by the spring 121 so that the position of the front end is shifted from the J position shown in FIG. 21 to the I position shown in FIG. For this reason, the brake means 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 that the brake means 19 of the switch 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 second processing device 38 in the present embodiment including the damper 102 is a delay device for causing the above-described delay.

  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. 1, the end portion of the third control wire 113 is connected to a manual operation member such as a lever member disposed on the operation device 30, or 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.

  FIG. 2 shows the wiring state in the ceiling space 7 of the first control wire 111 spanned between the second processing device 38 and the automatic closing device 32 of the unit structure 45 described above. Has been. As described above, the first control wire 111 is a tension-force transmitting member for transmitting the tension force based on the weight of the shutter curtain 1 when it contacts the obstacle 34 during the closing movement to the automatic closing device 32. It has become. The end portion of the protection member 201 is coupled to the lintel member 16A described above by screws, welding, or the like. The protection member 201 includes a horizontal lower surface portion 201A, and the lintel member 16A side of the lower surface portion 201A. Is provided with an upright portion 201B provided at the end on the opposite side. The first control wire 111 slidably inserted into the outer cable 114 described above is placed on the lower surface portion 201A of the protective member 201 together with the outer cable 114, and the band member 202 is placed on the upright portion 201B. It is stopped by and extended upward.

  For this reason, among the first control wires 111, the first portion 111A extending from the second processing device 38 is placed on the lower surface portion 201A of the protection member 201, and the portion 111A is The protective member 201 is protected from the external environment.

  Further, the portion 111B of the first control wire 111 extending upward from the upright portion 201B of the protection member 201 is inserted into the shutter case 8 serving as the take-up shaft storage case as described above. , And extends to the self-closing device 32. The shutter case 8 includes left and right side plate portions 8A and 8B shown in FIG. 1, an upper plate portion 8C, a bottom plate portion 8D, and a back plate portion 8E shown in FIG. A hole 203 through which the first control wire 111 is inserted vertically is formed.

Accordingly, since the above-described portion 111B of the first control wire 111 is wired inside the shutter case 8, the portion 111B is protected from the external environment of the shutter case 8 by the shutter case 8. It has become. The shutter case 8 may be provided with a front plate portion that faces the back plate portion 8E and the thickness direction of the shutter curtain 1 and closes the front surface of the shutter case.

  As described above, the closing movement stop device 200 constituted by the brake means 19 of the switch 13 and the automatic closing device 32 is disposed in the ceiling space 7, and the ceiling space 7 and the aforementioned entrance 2. The ceiling member 5 serving as a member for partitioning is disposed below the protective member 201. The height position at which the ceiling member 5 is disposed is also below the shutter case 8.

  Further, since the protective member 201 is for placing the first portion 111A of the first control wire 111 on the lower surface portion 201A as described above, the protective member 201 is the first control wire 111. As can be understood from FIG. 1 in which the wiring locations are shown, the second processing device for the unit structure 45 described above between the left and right guide rails 6 and over which the first control wire 111 is bridged. It is arranged at a position corresponding to the arrangement position from 38 to the automatic closing device 32. Further, as shown in FIG. 2, since the unit structure 45 is disposed directly below or substantially directly below the winding shaft 11, the protective member 201 is automatically closed from directly below or approximately below the winding shaft 11. The shutter curtain 1 extending toward the device 32 has a width dimension in the thickness direction.

  As described above, the construction work of the ceiling member 5 carried out by placing the end of the ceiling member 5 on the lintel 16 or the like is performed on the lower surface portion 201A of the protection member 201. This is performed after the wiring work of the first control wire 111 in the ceiling space 7 performed by placing the first portion 111A of 111 is performed.

  For this reason, according to the present embodiment, the construction work of the ceiling member 5 is performed in a state in which the portion 111A of the first control wire 111 is protected by the protective member 201, and the first Of the control wire 111, the above-described portion 111 </ b> B is performed while being protected by the shutter case 8. For this reason, when the construction work of the ceiling member 5 is performed in the ceiling space 7, for example, the work of electrical wiring, the work related to the building frame, or other work is performed, the worker or the worker Can prevent the first control wire 111 from changing the wiring state of the first control wire 111 to, for example, a tortuous state, so that the original function of the first control wire 111 can be reduced. Even after work such as construction work of the member 5, it can be maintained.

  Further, since the protection member 201 is also used to place a part 111A of the first control wire 111, the protection member 201 can be used as the first control wire placement member, and only that is required. The number of members can be reduced.

  In addition, since the first control wire 111 is inserted into the outer cable 114, the first control wire 111 can be protected by the outer cable 114 during work such as construction work of the ceiling member 5, It is possible to prevent the first control wire 111 from being damaged.

  In the embodiment described above, the weight of the shutter curtain 1 corresponds to the width dimension of the shutter curtain 1 and the vertical dimension of the entrance / exit 2 shown in FIG. 1, in other words, the opening / closing movement amount of the shutter curtain 1. In order to stop the closing movement of the shutter curtain 1 when it comes into contact with the obstacle 34 during the closing movement, the above-described spring 121 for advancing the slide member 120 of the automatic closing device 32 is attached to the weight of the shutter curtain 1. For this purpose, a spring having an appropriate spring force is selected as the spring 121 according to the width dimension of the shutter curtain 1 and the vertical dimension of the entrance 2. Good. In order to resume the closing movement of the shutter curtain 1 when the obstacle 34 is removed and an appropriate delay time has elapsed, the viscosity of the damper 102 provided in the second processing device 38 described above is resumed. What is necessary is just to set the resistance force of a fluid to the resistance force according to the weight of the shutter curtain 1, ie, the resistance force of an appropriate magnitude | size corresponding to the width dimension of the shutter curtain 1, and the vertical dimension of the entrance / exit 2.

  Then, the weight of the shutter curtain 1 may be adjusted according to the spring force of the spring 121 or the resistance force of the viscous fluid of the damper 102. This adjustment forms, for example, a curtain body at an appropriate location of the shutter curtain 1. For this purpose, a weight adjusting member can be attached to the slat at the lowermost part of the slats that are arranged in a large number in the vertical direction.

  Further, an intermediate member such as a lever member is interposed between the slide member 120 of the automatic closing device 32 shown in FIG. 17 and the actuated member 123 provided in the brake means 19 of the opening / closing machine 13 so as to slide. The advance of the member 120 may be transmitted to the actuated member 123 via this intermediate member. However, as described above, if the advance of the slide member 120 is directly transmitted to the actuated member 123, the brake means 19 can be quickly switched on and off.

  In addition, when it is impossible or difficult to start the closing movement of the shutter curtain 1 that has been fully opened due to its own weight due to the light weight of the shutter curtain 1 or the like, the shutter curtain 1 is provided with the shutter curtain 1. The weight of the weight member received by the receiving portion provided in 1 is applied, and the weight member is fully opened by being connected to a stationary member such as the lintel 16 by a string-like member such as a wire or a chain. The shutter curtain 1 that has been used starts the closing movement with the weight of the weight member as an auxiliary force, and when the shutter curtain 1 is closed and moved to a predetermined position, the weight member is separated from the receiving member. The weight member is suspended by the string-like member, and the shutter curtain 1 is opened and moved. When may also be shutter curtain 1 weight member is received in the receiving member reaches the fully open position.

  Further, the friction member 68 of the second lever member 62 serving as the operating member of the mechanical coupling device 39 shown in FIG. 15 is connected to the second lever member 62 by, for example, a long hole. It may be attached slidably in the length direction. According to this, as described above, the locking of the locking wire 36 by the friction members 67 and 68 of the first lever member 61 and the second lever member 62 is performed with a large load. Even when a part of the friction member 68 enters between the twists of the locking wire 36, when the curtain sub-part 71B moves downward with respect to the curtain main part 71A by removing the obstacle 34, By sliding the friction member 68, the friction member 68 can be separated from the locking wire 36.

  Further, in the present embodiment, when the shutter curtain 1 is fully opened, the shutter curtain starts closing movement by operating the “close” button of the operating device 30 shown in FIG. Even when the inner shutter curtain 1 abuts against the obstacle 34, the first lever member 61 and the second lever member 62 of the mechanical coupling device 39 are locked by the friction members 67 and 68 as in the case described above. The folding portion 36A of the locking wire 36 is clamped and locked, and the mechanical coupling device 39 mechanically couples the shutter curtain 1 and the locking wire 36, so that the second portion 36C of the locking wire 36 has a downward facing Tension will act.

  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 locking wire 36 is determined by the second processing device. It acts on the slide member 120 of the automatic closing device 32 via the 38 rotation members 42 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.

  In addition, although the shutter apparatus which concerns on this embodiment demonstrated above was a combined shutter apparatus of management and disaster prevention, the apparatus which concerns on this embodiment is applicable also to the shutter apparatus only for disaster prevention.

  FIG. 22 shows the unit structure 45 composed of the first processing device 37 and the second processing device 38 described above, the shutter 16 that is a stationary member with respect to the shutter curtain 1 that opens and closes, and the shutter curtain 1. In the thickness direction, an embodiment in which the pressing means 150 for pressing the shutter curtain 1 to the side opposite to the side where the unit structure 45 is arranged is shown.

  That is, when the shutter curtain 1 is unwound from the above-described winding shaft 11, the winding diameter of the shutter curtain 1 on the winding shaft 11 is reduced, so that even if the shutter curtain 1 approaches the unit structure 45, In this embodiment, the approaching position of the shutter curtain 1 relative to the unit structure 45 is limited to a certain position by the pressing means 150 so that the shutter curtain 1 does not interfere with the unit structure 45. As shown in the perspective view of FIG. 23 and the plan view of FIG. 24, the pressing means 150 is obtained by attaching a first roller 152 and a second roller 153 to the machine frame 151 so as to be rotatable up and down. The arrangement position of the upper second roller 153 with respect to the lower first roller 152 is a position that is higher by L1 and is further retracted from the shutter curtain 1 by L2.

  As shown in FIG. 22, when the shutter curtain 1 is advanced from the take-up shaft 11, the shutter curtain 1 first hits the first roller 152, and the shutter curtain 1 is taken out from the take-up shaft 11. As it further proceeds, the shutter curtain 1 then strikes both the first roller 152 and the second roller 153. For this reason, even if the winding diameter of the shutter curtain 1 on the winding shaft 11 becomes extremely small, it is possible to prevent the shutter curtain 1 from interfering with the unit structure 45 by the two rollers 152 and 153.

  The number of rollers provided in the pressing means may be one. When a plurality of rollers are used, the height positions of the rollers may be the same, and these rollers may be arranged in parallel in the width direction of the shutter curtain.

  FIG. 25 shows another embodiment of the wiring of the first control wire 111 in the ceiling space 7 described above. 25 shows an embodiment in which the pressing means 150 is used. However, the embodiment of the wiring of the first control wire 111 shown in FIG. 25 is the same as that in FIG. The present invention can also be applied when no is used.

  In FIG. 25, a protective case 210 is provided on the outer side of the shutter curtain 8 serving as the winding shaft storage case described above. The protective case 210 includes an upper plate portion 210A in which one end portion is coupled to a building housing 9 such as a falling wall existing in the ceiling space 7 by a coupling 211 such as a bolt and a bracket 212, and a lintel member 16A. The bottom plate portion 210B, one end of which is coupled to the other via the bracket 213, and the other end of the upper plate 210A and the other end of the bottom plate 210B are closed, and these ends are And a front plate portion 210C fastened with a fastening tool 214 such as a screw. The aforementioned closing movement stopping device 200 including the brake means 19 of the opening / closing device 13 and the automatic closing device 32 is disposed in the ceiling space 7 inside the protective case 210.

  The protective case 210 may be provided with left and right side plate portions for closing the left and right side surfaces of the protective case 210.

  The first control wire 111 inserted into the outer cable 114 and the third control wire 113 inserted into the outer cable 116 are wired inside the protective case 210. For this reason, the first and third control wires 111 and 113 are protected from the external environment of the protective case 210 by the protective case 210.

  As in the embodiment of FIG. 1, a ring-shaped manual operation member 141 disposed on the entrance / exit 2 side is provided at the end of the third control wire 113 of the present embodiment. For this reason, the bracket 213 and the bottom plate portion 210B are formed with holes for allowing a part of the third control wire 113 on the manual operation member 141 side to be slidably inserted.

  Further, the vertical position of the bottom plate portion 210 </ b> B coincides with or is omitted from the ceiling member 5. Further, a mounting member 215 for mounting the end of the ceiling member 5 is provided on the bottom plate portion 210B, and the mounting member provided on the protective case 210 by the mounting member 215 is provided on the ceiling member. The end of 5 is placed. Therefore, in this embodiment, the ceiling member 5 is disposed on the side portion of the protective case 210.

  Since the protective case 210 protects the first and third control wires 111 and 113, the protective case 210 having the upper plate portion 210A, the bottom plate portion 210B, and the front plate portion 210C The guide rails 6 may be disposed only at positions corresponding to the wiring positions of the first and third control wires 111 and 113, or the upper plate portion 210A, the bottom plate portion 210B, and the front plate portion 210C. Among them, at least the bottom plate portion 210 </ b> B, that is, the one that supports the end portion of the ceiling member 5 via the mounting member 215 may be formed with a left and right length dimension straddling between the left and right guide rails 6. As shown in FIG. 25, the bottom plate portion 210B of the protective case 210 has a width dimension in the thickness direction of the shutter curtain 1 that extends from directly below or substantially below the winding shaft 11 toward the automatic closing device 32. have.

  The construction work of the ceiling member 5 performed by placing the end portion of the ceiling member 5 on the placement member 215 is performed by the first and third control wires 111 and 113 inserted into the outer cables 114 and 116. Is carried out after assembling the protective case 210 containing these control wires 111 and 113 inside the upper plate portion 210A, the bottom plate portion 210B and the like.

  For this reason, at the time of construction work of the ceiling member 5 or performed in the ceiling space 7, for example, at the time of work of electrical wiring or work related to the building frame, at the time of other work, the control wires 111 and 113 are The protective case 210 can protect the worker and the tools used by the worker, so that the worker or the like mistakes the wiring state of the control wires 111 and 113 to, for example, a winding state. Thus, the original functions of the control wires 111 and 113 can be maintained even after work such as construction work of the ceiling member 5.

  Further, since the vertical position of the bottom plate portion 210B of the protective case 210 coincides with or substantially coincides with the ceiling member 5, the bottom plate portion 210B is used as a simulated ceiling member substantially the same as the ceiling member 5. Available.

  Further, since the bottom plate portion 210B, which is a protective case forming member that forms a part of the protective case 210, is provided with a mounting member 215 for mounting the end portion of the ceiling member 5, this bottom plate The ceiling member 5 can be arranged by effectively using the portion 210B.

  The shutter device according to each of the embodiments described above includes a U-shaped lock in which a bridging member having a portion spanned between the lintel 16 that is a stationary member and the shutter curtain 1 has a folded portion 36A. Next, a description will be given of a shutter device according to an embodiment in which the bridging member extends linearly except for a portion corresponding to the mechanical coupling device.

  FIG. 26 shows a combined shutter device for management and disaster prevention according to this embodiment, and FIG. 27 is a sectional view taken along line S27-S27 in FIG.

  Also in this embodiment, the opening / closing device 13 and the automatic closing device 32 described in FIGS. 1 and 2 are used, and the automatic closing device is a mechanical control device for controlling the opening / closing device 13 mechanically. Similarly to the embodiment shown in FIGS. 17 to 21, one end of the first to third control wires 111 to 113 is connected to 32. For this reason, in the following description, the structure and operation of the switch 13, the automatic closing device 32, and the first to third control wires 111 to 113 already described will be omitted.

  However, in this embodiment, the other end portion of the third control wire 113 is extended to the operating device 30 shown in FIG. 1 and also shown in FIG. A manual operation member such as a lever member disposed in the device 30 or a rotating member that is rotated by a switch operation type electric motor disposed in the operation device 30 and winds up the third control wire 113 so as to be freely drawn out. It is connected with the winding member for.

  In this embodiment, among the left and right guide rails 306 that guide the up and down movement of the shutter curtain 301, the inside of one guide rail 306A is a bridging member in this embodiment, which is a string-like member. The roller chain 335 is stored and arranged. The roller chain 335 passes from the lintel 16 that is a stationary member to the shutter curtain 301 to the lower end of the guide rail 306A that is a stationary member with respect to the shutter curtain 301 through the inside of the shutter curtain 301. It extends. For this reason, the roller chain 335 has a portion extending from the stationary member to the shutter curtain 301. Further, the lower end of the roller chain 335 is coupled to the guide rail 306A or the floor 4 by a coupling member 336 such as a pin, and the upper end of the roller chain 335 is disposed in the lintel 16 to process the upper end. It is connected to the processing device 337. The floor 4 is also a stationary member with respect to the shutter curtain 301, like the lintel 16 and the guide rail 306.

  The processing device 337 is a delay device in this embodiment, as will be described later.

  The processing device 337 is also an intermediate device disposed between the roller chain 335 and the automatic closing device 32. The processing device 337 is also shown in FIGS. FIG. 28 is a diagram in which the front and back are reversed with respect to FIG. As shown in FIG. 28, the processing device 337 includes a rotating member 339 that is rotatable about a horizontal central shaft 339A coupled to the machine casing 338 of the apparatus 337, and a machine casing 338. And a lever member 340 that is swingable up and down around a fulcrum shaft 340A. The upper end of the roller chain 335 is connected to one end portion of the lever member 340 via a coil spring 341 that is an elastic member, and the other end portion of the lever member 340 is a pin 342 coupled to the rotating member 339. It is connected to the rotation member 339 via Since the pin 342 is inserted into a long hole 340B formed in the lever member 340, when the lever member 340 swings up and down around the fulcrum shaft 340A, the rotating member 339 is centered around the central shaft 339A. Rotate up and down.

  FIG. 29 is an enlarged front view of a portion on the guide rail 306 </ b> A side of the seat plate 301 </ b> B that is an end member of the shutter curtain 301. 30 is a front sectional view showing the internal structure of the seat plate 301B, FIG. 31 is a sectional view taken along line S31-S31 in FIG. 30, and FIG. 32 is a sectional view taken along line S32-S32 in FIG. FIG. 32 shows a configuration of the shutter curtain 301, and the shutter curtain 301 of this embodiment is also formed by a large number of slats 326 arranged vertically as shown in FIG. The curtain body 301A is an opening / closing body, and a seat plate 301B is provided at the lower end of the curtain body 301A and is an end member. In addition, the seat plate 301B is provided with a fixed portion 370A fixed to the lower portion of the curtain body 301A, and a movable portion 370B that is disposed below the fixed portion 370A and is movable in the vertical direction with respect to the fixed portion 370A. It consists of.

  Further, as shown in FIG. 32, the shutter curtain 301 has a curtain main portion 371A and a curtain sub-portion 371B, and the curtain main portion 371A is a fixed one of the curtain main body 301A and the seat plate 301B. The curtain sub-portion 371B includes a movable portion 370B of the seat plate 301B. The curtain sub-portion 371B is disposed at the end of the shutter curtain 301 on the closing side. The curtain main portion 371A is an open / close body main portion in the present embodiment, and the curtain sub portion 371B is an open / close body sub portion in the present embodiment.

  Also, as shown in FIG. 32, the fixing portion 370A of the seat plate 301B is formed to include an outer member 375 and an inner member 376 that are both box-shaped in cross section, and the outer member 375 is a shutter. The split member 375A and 375B are divided and arranged in the thickness direction of the curtain 301. These split members 375A and 375B are coupled to the lower end of the curtain body 301A by a coupler 377 such as a bolt and a nut. ing. The inner member 376 includes a front surface portion 376A and a rear surface portion 376B that are arranged at an interval in the thickness direction of the shutter curtain 301, and an upper surface portion 376C that connects the upper ends of the front surface portion 376A and the rear surface portion 376B. Consists of. Further, the lower surfaces of the outer member 375 and the inner member 376 are openings 378.

  The curtain sub-portion 371B, which is the movable portion 370B, includes a hollow movable member 390 having an open upper surface, an elevating member 391 housed in the movable member 390 so as to be movable up and down, and an elevating member with respect to the movable member 390. And an elastic member 392 that is always elastically pushed up 391 upward. In this embodiment, the elastic member 392 is formed by a leaf spring bent into a mountain shape, and the upper end of the center of the leaf spring 392 is secured to the elevating member 391 by a fastening tool 393 such as a rivet. Both lower ends of the leaf springs 392 are slidably disposed on the upper surface of the bottom surface portion 390A of the movable member 390.

  The upper surface portions 391A and 391B of the elevating member 391 extend horizontally outward in the thickness direction of the shutter curtain 301, and these upper surface portions 391A and 391B are inserted into the inner member 376 from the opening 378. The lower surface portions 375C and 375D of the outer member 375 extend horizontally outward in the thickness direction of the shutter curtain 301, and the upper surface portions 390B and 390C of the movable member 390 extend horizontally inward in the thickness direction of the shutter curtain 301. These upper surface portions 390B and 390C are vertically opposed to the upper surfaces of the lower surface portions 375C and 375D of the outer member 375. Therefore, when the upper surface portions 390B and 390C of the movable member 390 ride on the lower surface portions 375C and 375D of the outer member 375, the aforementioned movable portion 370B reaches the lower limit position with respect to the fixed portion 370A. Therefore, the above-described curtain sub-portion 371B does not descend any more than the curtain main portion 371A.

  Further, as shown in FIG. 32, a swinging member 381 that can swing up and down around a fulcrum shaft 380 extending in the width direction of the shutter curtain 301 is housed in the fixing portion 370A. ing. As shown in FIG. 34, when the movable part 370B moves up with respect to the fixed part 370A, that is, when the shutter curtain 301 is closed, the movable member 390 hits the obstacle 34 shown in FIG. When in contact, the upper surface portion 391A of the elevating member 391 connected to the movable member 390 via the elastic member 392 pushes up the protruding piece 381A of the swinging member 381, so that the swinging member 381 is centered on the fulcrum shaft 380. Rocks upward.

  The external member 375, the inner member 376, the movable member 390, the elevating member 391, and the swinging member 381 are formed of an extruded product or a pultruded product such as an aluminum alloy, for example. Therefore, the outer member 375, the inner member 376, the movable member 390, the elevating member 391, and the swinging member 381 have a length in the width direction of the shutter curtain 301. A fulcrum shaft 380 serving as a rocking center portion of the rocking member 381 is formed integrally with the inner member 376, and the fulcrum shaft 380 also has a length in the width direction of the shutter curtain 301. Further, a plurality of elastic members 392 using the leaf springs described above are arranged at intervals in the width direction of the shutter curtain 301.

  As shown in FIG. 32, the above-described two divided members 375A and 375B of the outer member 375 are overlapped with each other in the thickness direction of the shutter curtain 301 and extended upwards 375E and 375F. These extending portions 375E and 375F are coupled to the lowermost slat 326A among the slats 326 forming the curtain body 301A by the coupling 377 described above. Each slat 326 has a length in the width direction of the shutter curtain 301 such that both left and right ends are inserted into the left and right guide rails 306 shown in FIG. Further, the two divided members 375A and 375B including the extending portions 375E and 375F, the inner member 376, the movable member 390, the elevating member 391, and the swinging member 381 are spaced apart from each other by the inner width of the left and right guide rails 306. The shutter curtain 301 has a shorter length in the width direction.

  As shown in FIG. 30, the end portions 376D and 381B on the guide rail 306A side of the inner member 376 and the swinging member 381 are separated from the guide rail 306A by a predetermined distance, and the end portions inside the outer member 375 are inside. A holding member 350 is disposed in a portion where the portions 376D and 381B can be separated from the guide rail 306A. Since the holding member 350 coupled to the two divided members 375A and 375B of the outer member 375 by welding or a fastener has the same cross-sectional shape as the inner member 376, the holding member 350 is As shown in FIG. 31, the front surface portion 350A and the rear surface portion 350B that are spaced apart in the thickness direction of the shutter curtain 301, and as shown in FIG. The upper surface portion 350C connects the upper ends of the surface portion 350B. Further, as shown in FIGS. 30 and 31, an extending member 351 extending toward the guide rail 306 </ b> A is fixed to the front surface portion 350 </ b> A and the rear surface portion 350 </ b> B of the holding member 350 with a fastener 352 such as a rivet. Has been. The extending member 351 connects the front surface portion 351A and the rear surface portion 351B which are arranged at an interval in the thickness direction of the shutter curtain 301, and a part of the upper ends of the front surface portion 351A and the rear surface portion 351B. And an upper surface portion 351C.

  29, in order to allow the front surface portion 351A and the rear surface portion 351B of the extending member 351 to be fixed to the front surface portion 350A and the rear surface portion 350B of the holding member 350 with a fixing tool 352. The front surface portion 351A and the rear surface portion 351B of the extending member 351 are inserted and disposed in the two divided members 375A and 375B of the outer member 375 that are placed outside the front surface portion 350A and the rear surface portion 350B of the holding member 350. A notch 353 that can be formed is formed.

  As shown in FIG. 31, the distance between the front surface portion 351A and the rear surface portion 351B of the extending member 351 in the thickness direction of the shutter curtain 301 is fixed to the front surface portion 350A and the rear surface portion 350B of the holding member 350. Excluding the portion fixed at 352, the thickness direction of the shutter curtain 301 with respect to the opening 354 provided in the guide rail 306A in order to insert the curtain body 301A of the shutter curtain 301 into the guide rail 306A. It is smaller than the dimension. For this reason, the portion of the extending member 351 on the guide rail 306A side is inserted into the guide rail 306A.

  As shown in FIG. 30, the first sprocket wheel 361 is rotatably disposed inside the extending member 351, and the holding member 350 is slightly below the first sprocket wheel 361, The second sprocket wheel 362 is rotatably held, and the third sprocket wheel 363 is rotatably disposed inside the extending member 351 slightly below the second sprocket wheel 362. The arrangement positions of the first and third sprocket wheels 361 and 363 in the extending member 351 are inside the guide rail 306A.

  As described above, the roller chain 335 having the upper end connected to the processing device 337 shown in FIGS. 27 and 28 is inserted into the guide rail 306A from the processing device 337, and this roller chain 335 is inserted. As shown in FIG. 30, it is hung on the lower part of the first sprocket wheel 361 and then hung on the second sprocket wheel 362. The roller chain 335 extends around the upper part of the third sprocket wheel 363 and then extends downward through the guide rail 306A. The lower end of the roller chain 335 is connected to the coupling member 336 shown in FIG. The position has been reached. For this reason, the roller chain 335 passes through the first portion 335A from the processing device 337 to the first sprocket wheel 361 and the first sprocket wheel 361 to the second sprocket wheel 362 as shown in FIG. There are a second portion 335B extending to the third sprocket wheel 363 and a third portion 335C extending from the third sprocket wheel 363 to the coupling member 336.

  Therefore, the first portion 335A and the third portion 335C of the roller chain 335 are housed inside the guide rail 306A, and the second portion 335B is housed inside the shutter curtain 301 including the extending member 351. Since the roller chain 335 is protected from an external force or the like, and the roller chain 335 cannot be visually recognized from the outside, the shutter device according to this embodiment has good appearance.

  When the shutter curtain 301 is guided by the left and right guide rails 306 and moved up and down, the length of the first and third portions 335A and 335C of the roller chain 335 changes due to the opening and closing movement of the shutter curtain 301. This is done by moving the second portion 335B of the roller chain 335 relative to the curtain 301. Thus, when the second portion 335B of the roller chain 335 moves relative to the shutter curtain 301, the three sprocket wheels 361 to 363 rotate, so that the shutter curtain 301 moves to open and close. In this case, the second portion 335B of the roller chain 335 is a guide member for guiding the roller chain 335 so that the second portion 335B of the roller chain 335 can move with respect to the shutter curtain 301.

  As shown in FIG. 31, the first space portion 355 into which the first and third sprocket wheels 361 and 363 can be inserted, and the first space portion 355 inside the guide rail 306A having the opening 354 described above as an inlet, A second space portion 356 is formed which is formed on the far side of the first space portion 355 and has a smaller dimension in the thickness direction of the shutter curtain 301 than the first space portion 355. As shown in FIG. 30, the first and third portions 335A and 335C of the roller chain 335 are disposed in the second space 356. For this reason, the first and third portions 335A and 335C are The guide rail 306A is inserted into the guide rail 306A without contacting the inner wall surface.

  Due to the positional relationship of the roller chain 335 with respect to the shutter curtain 301, the first and third portions 335A and 335C of the roller chain 335 which is a bridging member and also a string-like member in this embodiment are Thus, the shutter curtain 301 is disposed in the guide rail 306 </ b> A away from the end in the width direction of the shutter curtain 301 in the width direction of the shutter curtain 301.

  Further, as shown in FIG. 30, a ratchet wheel 365 disposed coaxially with the second sprocket wheel 362 is rotatably held in the holding member 350 described above, and a plurality of ratchet wheels 365 are provided on the outer peripheral portion. The ratchet wheel 365 in which the claw portions 365A are formed at equal intervals is coupled and integrated by the second sprocket wheel 362 and the shaft portion 362A as shown in FIG. For this reason, the second sprocket wheel 362 and the ratchet wheel 365 are rotating members that rotate together.

  From the above, in the present embodiment, the second sprocket wheel 362 is a guide member for guiding the movement of the roller chain 335 by rotation with respect to the shutter curtain 301 when the shutter is being opened and closed. The ratchet wheel 365 is connected to the guide member and is a rotating member that rotates integrally with the guide member.

  As shown in FIG. 30, the ratchet member 366 is held in the holding member 350 so as to be swingable up and down at a position closer to the swing member 381 than the position where the second sprocket wheel 362 is disposed. Has been. As shown in FIG. 31, the ratchet member 366 includes a front surface portion 366A and a rear surface portion 366B that are spaced apart from each other in the thickness direction of the shutter curtain 301, and the front surface portion 366A and the rear surface portion 366B. A bottom surface portion 366C connecting the lower ends. The front surface portion 366A and the rear surface portion 366B are swingably connected to the front surface portion 350A and the rear surface portion 350B of the holding member 350 by a fulcrum shaft 367 by a pin or the like, so that the ratchet member 366 is vertically moved around the fulcrum shaft 367. It is a swingable swinging member.

  Further, as shown in FIG. 30, a claw portion 366D protruding toward the ratchet wheel 365 is formed on the bottom surface portion 366C of the ratchet member 366, and this claw portion 366D has an inverted V shape. Yes. In addition, the bottom surface portion 66C of the ratchet member 366 is formed with a protruding portion 366E that protrudes toward the swinging member 381 side. Due to the arrangement position of the fulcrum shaft 367 with respect to the position of the center of gravity of the entire ratchet member 366, the ratchet member 366 in the normal state is inclined with the protruding portion 366E on the lower side, as shown in FIG. . A pressing member 394 is attached to the upper surface of the above-described protruding piece 381A of the swinging member 381, and the protruding portion 366E of the ratchet member 366 in the normal state rides on the pressing member 394.

  Further, a hook member 291 is attached to the pressing member 394. The hook member 291 is formed with a hook portion 291A facing the protruding portion 366E of the ratchet member 366 from above, and the hook portion 291A The hook member 291 has a hook shape that can be hooked on the protruding portion 366E of the ratchet member 366 from above.

  When the claw portion 366D is engaged with the claw portion 365A of the ratchet wheel 365 by the ratchet member 366 swinging about the fulcrum shaft 367 when the shutter curtain 301 is closed and moved, the ratchet wheel 365 and Since the rotation of the second sprocket wheel 362 is prevented, the roller chain 335 is locked with respect to the shutter curtain 301, in other words, the shutter curtain 301 and the roller chain 335 are mechanically coupled, Thereby, the closing movement of the shutter curtain 301 can be stopped.

  For this reason, in this embodiment, the roller chain 335 is mechanically locked to the shutter curtain 301 that is being opened and closed by the ratchet wheel 365 and the ratchet member 366, and the shutter curtain 301 and the roller chain 335 are mechanically locked. A mechanical coupling device 368 is configured to be coupled to the equation. The ratchet member 366 is a member that operates when the curtain sub-portion 371B contacts the obstacle 34 and the curtain sub-portion 371B moves relatively upward with respect to the curtain main portion 371A. In order to operate the shutter curtain 301 and the roller chain 335 in a mechanically coupled state, the shutter curtain 301 and the roller chain 335 are actuating members in the mechanical coupling device 368.

  Further, depending on the arrangement position of the ratchet wheel 365 and the ratchet member 366 in the shutter curtain 301, the mechanical coupling device 368 is similar to the mechanical coupling device 39 according to the embodiment shown in FIG. 4 and FIG. Of the seat plate 301B of 301, it is incorporated inside the fixed portion 370A. Therefore, the mechanical coupling device 368 is disposed on the fixed portion 370A among the curtain body 301A constituting the curtain main portion 371A of the shutter curtain 301 and the fixed portion 370A of the seat plate 301B.

  The roller chain 335 is separated from the shutter curtain 301 in the width direction of the shutter curtain 301 except for the fixing portion 370A of the shutter curtain 301 on which the mechanical coupling device 368 is disposed. Further, the roller chain 335 extends linearly inside the guide rail 306A except for the second portion 335B which is a portion corresponding to the mechanical coupling device 368.

  At the end of the movable member 390 described with reference to FIG. 32 on the side of the guide rail 306A, as shown in FIG. 30, an extension member 395 extending to the side of the guide rail 306A is a fastening device 396 such as a rivet. The tip of the extension member 395, which is formed of a channel material that is fastened and opened upward, is inserted into the guide rail 306A. Such an extension member is also provided at the end opposite to the end of the movable member 390 shown in FIG. 30, and the tip of the extension member is provided at the guide rail 306B shown in FIG. Is inserted inside. Accordingly, even if the obstacle 34 shown in FIG. 26 is present inside the guide rail 306A or the guide rail 306B, the movable member 390 is connected to the above-described fixed portion of the shutter curtain 301 via the extension member. Ascending relative to the outer member 375 and the inner member 376 constituting 370A.

  A return spring 400 such as a mainspring spring is disposed behind the rotating member 339 of the processing device 337 described in FIG. The return force of the return spring 400 is such that the rotation member 339 is rotated in the C ′ direction, that is, the rotation member 339 is rotated in the direction of pulling up the roller chain 335 via the lever member 340 described above. Furthermore, it acts on the rotating member 339. An arc-shaped elongated hole 339B centering on the central axis 339A is formed in the rotating member 339, and a stop member 401 attached to the machine casing 338 of the processing device 337 is inserted into the elongated hole 339B. The rotation amount of the rotation member 339 is restricted to a constant amount by the stop member 401.

  Gear teeth 339C are formed on a part of the outer peripheral portion of the rotation member 339. Therefore, the rotation member 339 of this embodiment is also the rotation of the second processing device 38 according to the embodiment described in FIG. Similar to the moving member 42, it is a sector gear partially formed with gear teeth 339C. Similarly to the second processing apparatus 38 according to the embodiment described with reference to FIG. 16, two rotary dampers 402 are disposed in the processing apparatus 337, and the pinion gear 403 of these dampers 402 is a rotating member 339. Is engaged with the gear teeth 339C. The structure and operation of these dampers 402 are the same as those of the damper 102 of the second processing apparatus 38 according to the embodiment described with reference to FIG. 16. For this reason, a one-way clutch is attached to the rotation center shaft 404 of the pinion gear 403. When the pinion gear 403 and the central shaft 404 are rotated in the E ′ direction by rotating the rotating member 339 in the C ′ direction, the respective blades are connected via the one-way clutch. Rotates in the viscous fluid filled in the damper 402. For this reason, the rotating member 339 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 339 rotates in the D ′ direction opposite to the C ′ direction, and the pinion gear 403 and the central shaft 404 rotate in the F ′ direction, the rotation in the F ′ direction is the one-way clutch. It is not transmitted to each blade by the cutting action. For this reason, the rotation member 339 can rotate at high speed in the D ′ direction.

  In addition, the other end of the first control wire 111 is extended to one end of the automatic closing device 32 shown in FIGS. 26 and 27, and is shown in FIG. In this manner, the rotating member 339 is connected.

  For this reason, in this embodiment, the processing device 337 is a relay device for relaying the roller chain 335 and the first control wire 111 serving as the tension transmission member as described above.

  In the building where the shutter device according to this embodiment described above is installed, even when a disaster such as a fire occurs when the shutter curtain 301 is fully open, the shutter device according to the embodiment of FIG. Similarly to the case, the shutter curtain 301 is closed and moved by its own weight by the above-described operation of the automatic closing device 32 and the switch 13, and a disaster prevention zone is formed by the shutter curtain 301.

  In addition, when the shutter curtain 301 is fully opened, the obstacle 34 shown in FIG. 26 exists when the shutter curtain 301 is closed and moved by its own weight due to a disaster such as a fire. In this case, in the middle of the closing movement of the shutter curtain 301, the curtain sub-portion 371B disposed at the front end of the shutter curtain 301 closes the lower part of the seat plate 301B of the shutter curtain 301. The aforementioned movable member 390 is in contact with the obstacle 34, and the lowering of the movable member 390 stops due to this contact.

  Even if the lowering of the movable portion 370B is stopped, the curtain main portion 371A composed of the curtain main body 301A and the fixed portion 370A of the seat plate 301B is lowered by its own weight, and thus is caused by the lowering. Due to the relative rise of the movable member 390 with respect to the curtain main portion 371A, the elevating member 391 connected to the movable member 390 via the elastic member 392 is also attached to the curtain main portion 371A as shown in FIG. Relatively rises. When this rise occurs, the swinging member 381 swings upward about the fulcrum shaft 380, and by this swinging, the ratchet member 366 on which the protrusion 366E is on the pressing member 394 shown in FIG. A swing motion is performed with the claw portion 366D on the lower side about the fulcrum shaft 367. The state at this time is shown in FIG.

  As the movable member 390 serving as the curtain sub-portion 371B is relatively raised as described above, the elevating member 391 is raised and the swinging member 381 swings upward. Reference numeral 381 denotes a curtain sub-part side member which is a member on the curtain sub-part 371B side.

  When the ratchet member 366 swings around the fulcrum shaft 367 with the claw portion 366D on the lower side, the claw portion 366D of the ratchet member 366 is moved to the claw portion 365A of the ratchet wheel 365 as shown in FIG. Therefore, the rotation of the ratchet wheel 365 and the second sprocket wheel 362 stops, and the roller chain 335 is mechanically locked with respect to the shutter curtain 301 that is closing and moving. In other words, the above-described mechanical coupling device 368 constituted by the ratchet wheel 365 and the ratchet member 366 operates, and the shutter curtain 301 and the roller chain 335 are mechanically coupled by the mechanical coupling device 368 by this operation. It becomes a state.

  Thus, when the shutter curtain 301 and the roller chain 335 are mechanically coupled by the mechanical coupling device 368, the entire shutter curtain 301 including the movable member 390 is further increased by the amount of deformation of the obstacle 34. Due to the lowering, a large tension force due to the weight of the shutter curtain 301 acts on the aforementioned first portion 335A of the roller chain 335.

  In the case where the obstacle 34 is a hard object that does not dent deform or has a small amount of dent deformation, the movable member 390 that comes into contact with the obstacle 34 does not descend further due to the hard property of the obstacle 34 or It will hardly go down. However, in this embodiment, as described above, the movable member 390 and the elevating member 391 are connected by the elastic member 392 using a leaf spring, and the movable member 390 is located at a certain height position for the hard obstacle 34. The curtain main portion 371A in which the swinging member 381 and the ratchet member 366 are disposed is the distance K shown in FIG. 34 with respect to the movable member 390 due to the elastic deformation of the elastic member 392. It can only be lowered. For this reason, even if the movable member 390 does not descend or hardly descends due to the hard obstacle 34, the curtain main portion 371A can remove the weight of the movable member 390, the elevating member 391, and the elastic member 392. The weight can be lowered by a distance K, and by this descent, the elevating member 391 on which the upward elastic force of the elastic member 392 is acting rises relative to the curtain main portion 371A.

  For this reason, even when the obstacle 34 is a hard object that does not dent deform or has a small amount of dent deformation, the roller chain 335 is mechanically moved with respect to the shutter curtain 301 moving in the same manner as described above. The coupling device 368 is mechanically locked, and a large tension force due to the weight of the shutter curtain 301 acts on the first portion 335A of the roller chain 335.

  Further, since the movable member 390 is provided with the extension member 395 inserted into the left and right guide rails 306 as described above, the obstacle 34 exists inside these guide rails 306. Also in this case, as can be seen from the above, the relative movement of the movable member 390 and the like with respect to the curtain main portion 371A occurs. Therefore, in this case as well, the shutter curtain 301 moving in a closed state and the roller chain 335 are mechanically coupled by the mechanical coupling device 368, and the first portion 335A of the roller chain 335 includes a shutter. A large tension force due to the weight of the curtain 301 acts.

  When a large tension force acts on the first portion 335A of the roller chain 335 in this way, the reversal action by the swinging of the lever member 340 provided on the processing device 337 shown in FIG. The rotation member 339 of the processing device 337 rotates in the direction D ′ in FIG. 28 against the return spring 400 described above, and this rotation amount is an arc-shaped elongated hole into which the above-described stop member 401 is inserted. It is according to the length of 339B. The rotation at this time causes the pinion gear 403 of the rotary damper 402 to rotate in the F ′ direction. However, the rotation of the pinion gear 403 in the F ′ direction generates a resistance force due to the viscous fluid in the damper 402 as described above. do not do. For this reason, the rotating member 339 rotates in the direction D ′ at high speed due to the tension force acting on the roller chain 335, and the first control wire having one end connected to the rotating member 339. 111 is pulled as in the case of the second processing apparatus 38 according to the embodiment shown in FIG.

  As described above, the automatic closing device 32 in which the first control wire 111 is pulled and the tension force is transmitted from the first control wire 111 is the brake means of the switch 13. In order to switch 19 from OFF to ON, the shutter curtain 301 in contact with the obstacle 34 closes and stops moving at the contact position.

  As described above, the shutter curtain 301 in the closing movement comes into contact with the obstacle 34, the brake means 19 of the switch 13 is turned on, and the obstacle 34 is removed after the closing movement of the shutter curtain 301 is stopped. Then, the movable member 390 of the shutter curtain 301 is lowered. By this lowering, the elevating member 391 is also lowered, the swinging member 381 returns and swings downward about the fulcrum shaft 380, and the ratchet member 366 also swings back and swings around the fulcrum shaft 367 with the protruding portion 366E downward. Therefore, the mechanical coupling state between the shutter curtain 301 and the roller chain 335 by the mechanical coupling device 368 is released.

  In particular, in this embodiment, when the swinging member 381 swings back downward about the fulcrum shaft 380, the hooking portion 291A of the hooking member 291 of FIG. 33 attached to the pressing member 394 of the swinging member 381 is provided. Is hooked on the protruding piece 366E of the ratchet member 366 from above, and the hooking action of the hook 291A causes the ratchet member 366 to forcibly perform the return swinging with the protruding portion 366E downward about the fulcrum shaft 367. Can do. For this reason, the claw portion 366D of the ratchet member 366 strongly bites into the claw portion 365A of the ratchet wheel 365, so that the claw portion 366D of the ratchet member 366 cannot be separated from the claw portion 365A of the ratchet wheel 365. Even in this case, this separation can be performed more reliably, and the mechanical coupling state between the shutter curtain 301 and the roller chain 335 by the mechanical coupling device 368 can be more reliably released.

  For this reason, in this embodiment, the hook member 291 connects the swing member 381 serving as the curtain sub-part side member and the ratchet member 366 serving as the operation member of the mechanical coupling device 368 described above. In this connection means 288 shown in FIG. 30 and FIG. 33, the curtain sub-portion 371B is directed downward with respect to the curtain main portion 371A by removing the obstacle 34. When moved to the position, the swing member 381 and the ratchet member 366 are connected.

  As described above, when the mechanical coupling state between the shutter curtain 301 and the roller chain 335 by the mechanical coupling device 368 is released, the tension force acting on the first portion 335A of the roller chain 335 disappears, and FIG. The rotating member 339 on which the return force of the return spring 400 of the processing device 337 is applied rotates in the direction C ′ of FIG. 28, and the tension acting on the first control wire 111 by this rotation. Since the force disappears, the brake means 19 of the switch 13 is switched from on to off again by the operation of the automatic closing device 32, and the shutter curtain 301 resumes the closing movement.

  When the rotating member 339 rotates in the C ′ direction in FIG. 28, the pinion gear 103 of the rotary damper 402 rotates in the E ′ direction. In this E ′ direction, the damper 402 has a resistance force due to the viscous fluid. Therefore, the switching of the brake means 19 of the switch 13 from on to off is not instantaneously performed due to the delay action of the damper 402. Therefore, the processing device 337 serving as a device for connecting the roller chain 335 and the first control wire 111 is a delay device, and the delay function of the delay device allows the shutter to be removed by removing the obstacle 34. The resumption of the closing movement of the curtain 301 is started with a time delay from the removal of the obstacle 34 as in the case of the second processing apparatus 38 according to the embodiment of FIG. Work can be done with a time margin.

  As described in the second processing device 38 according to the embodiment of FIG. 4 instead of the damper 402, for example, mechanical means including a mainspring timer may be adopted as this delay device.

  Also in this embodiment, when the shutter curtain 301 is fully opened, the shutter curtain 301 starts to move and closes when the “close” button of the operation device 30 shown in FIG. 26 is operated. Even when the moving shutter curtain 301 comes into contact with the obstacle 34, the mechanical coupling device 368 brings the shutter curtain 301 and the roller chain 335 into a coupled state, so that tension is applied to the roller chain 335. It will be. Therefore, even when the closing movement of the shutter curtain 301 is performed by operating the “close” button of the operation device 30 as described above, the closing movement of the shutter curtain 301 can be stopped.

  The device according to this embodiment can also be applied to a shutter device dedicated to disaster prevention.

INDUSTRIAL APPLICABILITY The present invention can be used for opening and closing devices such as various shutter devices, hinged door devices, sliding door devices, awning devices, and smoke-proof banner devices.

DESCRIPTION OF SYMBOLS 1,301 Shutter curtain which is an opening / closing body 1A, 301A Curtain body 1B, 301B Seat plate 5 Ceiling member 8 Shutter case which is a winding shaft storage case 11 Winding shaft 13 Opening / closing machine 16 Tuna which is a stationary member 19 Closed movement stop Brake means constituting the device 32 Automatic closing device constituting the closing movement stopping device 34 Obstacle 36 Locking wire as the bridging member 38 First processing device 39,368 as the relay device Mechanical coupling device 111 Tension force transmission member 114, the first control wire outer cable 200, the closing movement stop device 201, the protective member 210, the protective case 215, the mounting member 335 that forms the mounting portion for mounting the ceiling member. A certain roller chain 337 A processing device which is a relay device

Claims (11)

A tension transmitting member for transmitting a tension force due to the weight of the opening / closing body when the opening / closing body that can be opened and closed in the vertical direction contacts an obstacle in the middle of the downward closing movement, In the opening / closing body stop device of the opening / closing apparatus, the tension force is transmitted from the tension force transmitting member, and the closing movement stopping device for stopping the closing movement of the opening / closing body is provided.
The open / close body moves up and down in the vertical direction by winding and unwinding the winding shaft, and the winding shaft is housed in a winding shaft storage case having a bottom plate portion, and the bottom plate portion A protective member is arranged below the
An opening / closing body stopping device for an opening / closing device , wherein at least a part of the tension transmitting member is wired in a state protected from an external environment between the bottom plate portion and the protection member . 2. The opening / closing body stop device for an opening / closing device according to claim 1, wherein the protection member includes a lower surface portion and an upright portion provided at an end portion of the lower surface portion. Body stop device. The opening / closing body stop device for an opening / closing device according to claim 2, wherein the tension transmitting member is fixed to the upright portion by a band member. The opening / closing body stopping device for an opening / closing device according to any one of claims 1 to 3, wherein the closing movement stopping device is disposed in a ceiling space partitioned by a ceiling member, and the ceiling member is disposed below the protective member. A lintel member that forms a slit for hanging a portion of the opening / closing body below the winding shaft downward from the ceiling member is disposed on the ceiling member. An opening / closing body stopping device for an opening / closing device, wherein the protective member is coupled. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 4, wherein at least a part of the tension transmitting member is placed and wired on the protective member. Opening and closing body stop device. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 5, wherein a part of the tension transmitting member is protected from an external environment between the bottom plate portion and the protection member. Opening and closing of the switchgear characterized in that the other part of the tension transmitting member is wired and inserted into the inside of the take-up shaft storage case through the hole formed in the bottom plate part Body stop device. A tension transmitting member for transmitting a tension force due to the weight of the opening / closing body when the opening / closing body that can be opened and closed in the vertical direction contacts an obstacle in the middle of the downward closing movement, In the opening / closing body stop device of the opening / closing apparatus, the tension force is transmitted from the tension force transmitting member, and the closing movement stopping device for stopping the closing movement of the opening / closing body is provided.
The opening and closing body is opened and closed in the vertical direction by winding and unwinding the winding shaft, and the winding shaft is housed in a winding shaft storage case having a bottom plate portion,
A protective case is provided outside the winding shaft storage case, and at least a part of the tension transmission member is protected from the external environment inside the protective case and outside the winding shaft storage case. An opening / closing body stopping device for an opening / closing device, wherein the opening / closing body stopping device is wired in a state. 8. The opening / closing body stopping device for an opening / closing device according to claim 7 , wherein the closing movement stopping device is disposed in a ceiling space partitioned by a ceiling member, and the ceiling member is disposed on a side portion of the protective case. An opening / closing body stopping device for an opening / closing device. The opening / closing body stopping device for an opening / closing device according to claim 8 , wherein a mounting portion for mounting an end portion of the ceiling member is provided on a case forming member forming the protective case. An opening / closing body stopping device for an opening / closing device. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 9 , wherein the tension transmitting member is slidably inserted into an outer cable. apparatus. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 10 , further comprising a portion spanned from the stationary member that is stationary with respect to the opening / closing body to the opening / closing body, A bridging member that moves relative to the opening / closing body by the opening / closing movement of the opening / closing body, and the opening / closing body are disposed on the opening / closing body, and the opening / closing body abuts the obstacle during the downward closing movement, so A mechanical coupling device for mechanically coupling the transfer member, and a relay device arranged on the stationary member and connected to the transfer member, the opening / closing body facing downward The tension force due to the weight of the opening / closing body when contacting the obstacle during the closing movement of the actuator acts on the tension force transmission member via the bridge member and the relay device. Open and close Location of the closing member stop device.

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