JP6329383B2 - Opening / closing member stop device for opening / closing device - Google Patents

Description

  The present invention relates to an opening / closing body stop device for an opening / closing device for stopping the closing movement when the opening / closing body that opens and closes contacts an obstacle during the closing movement. For example, a shutter curtain serves as the opening / closing body. It can be used for various opening / closing devices such as a shutter device for combined management and disaster prevention (combined use), an awning device, and a smoke protection banner device.

  In the management shutter device that is an opening and closing device that is an opening and closing body in which the shutter curtain is opened and closed, the shutter curtain for opening and closing the opening such as the entrance is opened and closed by the operation of the operation device, Stop moving. 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 shutter device for management, a shutter device for disaster prevention, and a shutter device for both management and disaster prevention, there is an obstacle in the closing direction of the shutter curtain that can be opened and closed, and the shutter that is closing and moving When the curtain comes into contact with the obstacle, the closing movement of the shutter curtain is stopped. A shutter curtain stop device for executing this stop is shown in Patent Document 1 below.

  In the shutter curtain stopping device disclosed in Patent Document 1, the openable / closable opening / closing body is mechanically coupled to the open / close body and the string-like member when the closing open / close body abuts against an obstacle. By doing so, the mechanical coupling device for applying the tension force due to the weight of the opening / closing body to the string-like member, and the string-like member is extended when the opening / closing body is closed, and the string-like member is wound when the opening / closing body is opened. The take-up reel for picking up and the return spring force is accumulated when the opening / closing body is closed, and the accumulated return spring force is used to cause the take-up reel to wind the string-like member when the opening / closing body is opened. And a spring.

JP 2013-49948 A

  In the opening and closing device of Patent Document 1, even when the opening and closing movement of the opening and closing body is repeated, or even when a long period of time has elapsed since the opening and closing device has been installed at the construction site, a predetermined value is given when the opening and closing body moves to the return spring. It is necessary to be able to accumulate a return spring force having a magnitude of 2 and to allow the string-like member to be wound on the take-up reel in a predetermined manner when the opening / closing body is opened. For this reason, even if the spring force of a return spring changes, the device for enabling it to cope with this is calculated | required.

  An object of the present invention is to provide an opening / closing body stopping device for an opening / closing device that can cope with a change in spring force of a return spring.

  An opening / closing body stopping device for an opening / closing apparatus according to the present invention mechanically couples the opening / closing body and a string-like member to an opening / closing body that can be freely opened and closed when the opening / closing body that is being closed is in contact with an obstacle. By doing this, the mechanical coupling device for applying a tension force due to the weight of the opening / closing body to the string-like member, and the string-like member is extended when the opening / closing body is closed, and when the opening / closing body is opened, A take-up reel for winding the string-like member, and a return spring force is accumulated when the opening / closing body is closed, and the accumulated return spring force is used to form a string on the take-up reel when the opening / closing body is opened. An opening / closing body stop device for an opening / closing device in which a return spring for winding a member is disposed, comprising spring force adjusting means for adjusting the magnitude of the spring force of the return spring. It is what.

  Since the opening / closing body device of the opening / closing apparatus according to the present invention includes the spring force adjusting means for adjusting the magnitude of the spring force of the return spring, the opening / closing movement of the opening / closing body is repeated, whereby the spring of the return spring Even if the force changes, or even if the return spring deteriorates due to a long period of time after the switchgear is installed at the construction site, the spring force of the return spring changes accordingly. , So that the spring force of the return spring can effectively cope with the change.

  The spring force adjusting means in the present invention can be arranged on the opening / closing body in various forms. For example, when the opening / closing body has an opening / closing body main body and an end member disposed at the end of the opening / closing body in the opening / closing body, the take-up reel and the return reel are arranged. The spring is arranged on the end member, and the take-up reel and the operation place to be operated among the spring force adjusting means are juxtaposed in the thickness direction of the opening / closing body. It is to be placed between the main body.

  According to this, since the operating point where the spring force adjusting means is operated is disposed between the take-up reel and the opening / closing body body, after the spring force adjustment, an operator or the like may mistakenly It can prevent operating this operation location.

  The return spring according to the present invention accumulates the return spring force when the opening / closing body is closed, and the accumulated return spring force can wind the string-like member around the take-up reel when the opening / closing body moves open. As long as it is an arbitrary return spring, one example is that the return spring is a spiral spring such as a mainspring spring, and another example is that the return spring is a torsion coil spring.

  In the case where the return spring is a spiral spring such as a mainspring spring, in order to be able to adjust the spring force of the return spring, the spring force adjusting means includes at least one of the inner end portion and the outer end portion of the spiral spring. One of them may be a means for rotating the spiral spring in the circumferential direction.

  When the spring force adjusting means is a means for rotating the inner end portion of the spiral spring in the circumferential direction of the spiral spring, the shaft is arranged at the center portion of the spiral spring. The inner end of the return spring is connected to this shaft, and the spring force adjusting means can be used as means for rotating the shaft.

  Further, when the spring force adjusting means is a means for rotating the inner end portion of the spiral spring in the circumferential direction of the spiral spring, the spiral spring is provided on the take-up reel. What is necessary is just to accommodate in the inside and to connect the outer end part of a spiral spring to this take-up reel.

  It should be noted that connecting the outer end of the spiral spring to the take-up reel in this way may be directly connecting the outer end of the spiral spring to the take-up reel, or the outer end of the spiral spring may be connected to the take-up reel. The outer end of the spiral spring may be indirectly connected to the take-up reel by connecting to a member connected to the take-up reel.

  Also, as described above, the inner end of the spiral spring is connected to the shaft inserted into the center of the spiral spring, and the spiral spring is stored inside the take-up reel. In order to indirectly connect the outer end of the spiral spring to the take-up reel, as an example, a split groove is formed in the shaft, and the inner end of the return spring is inserted into the split groove. By locking, the inner end portion of the return spring is connected to this shaft, and a loop portion is formed at the outer end portion of the return spring. The loop portion is provided on a member connected to the take-up reel. By inserting the inserted portion, the outer end portion of the return spring can be indirectly connected to the take-up reel.

  In addition, the take-up reel and the spiral spring may be arranged on the aforementioned opening / closing body in a state of being exposed to the outside. However, the take-up reel and the spiral spring may be housed in a case attached to the opening / closing body. Is preferred.

  According to this, since the take-up reel and the spiral spring are housed inside the case and disposed in the opening / closing body, the take-up reel and the spiral spring can be effectively protected from external force and the like.

  When the take-up reel and the spiral spring are housed in the case and arranged in the opening / closing body as described above, at least one end portion of the both ends of the shaft inserted through the central portion of the spiral spring is provided. The spring plate is projected to the outside of the case, a rotating plate is coupled to the protruding portion, and the spring force adjusting means may be a means having a connecting member for connecting the rotating plate after rotation about the shaft and the case. .

  According to this, the rotation of the rotating plate about the shaft causes the inner end of the spiral spring to rotate in the circumferential direction of the spiral spring by the rotation of the shaft to which the inner end is connected. When the spring force changes and then the rotating plate and the case are connected by the connecting member, the spring force of the spiral spring is fixed to the magnitude.

  Thus, when the spring force adjusting means is a means having a connecting member for connecting the rotating plate after rotation about the axis and the case, for example, the rotating plate is provided with a circle centered on the axis. A plurality of holes formed in the circumferential direction are provided, and the connecting member can be a pin-like member inserted into one of these holes and a hole provided in the case.

  Further, the above-described mechanical coupling device may be housed inside the case.

  According to this, the mechanical coupling device can also be effectively protected from external force or the like.

  Further, the opening / closing body stopping device of the opening / closing apparatus according to the present invention described above includes a brake device for stopping and moving the opening / closing body by turning on and off, and a slide for switching the brake device on and off. The mechanical coupling device is mechanically connected between the opening and closing body and the above-described string-like member when the closing and moving opening and closing body abuts against an obstacle. In this case, a tension force for sliding the slide member to turn on the brake device may be applied to the string-like member by its own weight.

  Furthermore, in the present invention, the above-described string-like member may be a wire, a synthetic resin string, a chain such as a roller chain, or any string-like member.

  Further, the above-described brake device may be a single device, or, for example, an opening / closing for opening / closing movement of the opening / closing body in combination with an electric motor device for opening / closing movement of the opening / closing body. It may be a part of the machine.

  Further, the above-mentioned slide member for switching on and off the brake device may be a member constituting an automatic closing device for closing and moving the opening / closing body that has reached the fully open position or the like, or It may be a member constituting a device other than the automatic closing device.

  Further, the present invention can be applied to an arbitrary opening / closing device in which an arbitrary opening / closing body is freely movable, and an example of the opening / closing device is a shutter device in which the opening / closing body is a shutter curtain, In addition, the present invention can be applied to various opening / closing devices such as an awning device and a smoke-proof banner device.

  Furthermore, the shutter device may be a shutter device for management in which the shutter curtain is opened, closed, moved or stopped by operation of the operation device, or may be a shutter device for disaster prevention that forms a disaster prevention zone by the shutter curtain that is fully closed, Or the shutter apparatus of management and disaster prevention combined use may be sufficient.

  According to the present invention, even if the spring force of the return spring changes, it is possible to cope with this.

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. 4 is a cross-sectional view taken along line S4-S4 of FIG. FIG. 5 is a view similar to FIG. 4 showing a state where the shutter curtain being moved in close contact comes in contact with an obstacle. FIG. 6 is a side sectional view showing an internal structure of the case shown in FIGS. 4 and 5. FIG. 7 is a front view showing the entire case shown in FIGS. 4 and 5. FIG. 8 is a front view showing a structure housed in the case of FIG. FIG. 9 is a view similar to FIG. 8 showing a state where the shutter curtain that is being closed is in contact with an obstacle. 10 is a cross-sectional view taken along line S10-S10 in FIG. FIG. 11 is a view taken in the direction of arrow S11 in FIG. 12 is a cross-sectional view taken along line S12-S12 of FIG. FIG. 13 is an enlarged front view showing the lock member shown in FIGS. 8 and 9. FIG. 14 is a side sectional view showing the direction changing device shown in FIGS. 1 and 2. FIG. 15 is a front view showing the internal structure of the composite device including the automatic closing device shown in FIGS. FIG. 16 is a plan view showing the internal structure of the composite apparatus. FIGS. 17A and 17B are plan views showing the intermediate device and the automatic closing device, which are devices constituting the composite device, separated from each other. FIGS. 18A and 18B are plan views showing the intermediate device and the automatic closing device separately when the solenoid of the automatic closing device is energized and excited due to a disaster such as a fire. FIGS. 19A and 19B are plan views showing the intermediate device and the automatic closing device separately when energization and excitation of the solenoid of the automatic closing device are stopped. FIGS. 20A and 20B are plan views showing the intermediate device and the automatic closing device separately when the shutter curtain during the closing movement comes into contact with the obstacle.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The opening / closing device according to the present embodiment is a shutter device in which the opening / closing body is a shutter curtain. The shutter device according to the present embodiment is a combined (combined) shutter device for management and disaster prevention. That is, the shutter device according to the present embodiment is configured such that the shutter curtain having a disaster prevention function such as smoke prevention closes and moves when an abnormal situation such as a fire occurs, so that the shutter curtain is fully closed by the shutter curtain. Function as a shutter device for disaster prevention in order to form a disaster prevention section in the structure of the door, and the shutter curtain can be opened, closed, moved and moved by operating the operation device to open and close openings such as doorways by the shutter curtain And a function as a management shutter device for stopping.

  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. A pair of left and right guide rails 6 slidably inserted at both ends in the left and right direction of the shutter curtain 1, in other words, both ends in the width direction of the shutter curtain 1, are attached to the left and right building housings 3. The shutter curtain 1 is moved up and down by being guided by these guide rails 6 as members.

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

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

  As can be seen from FIG. 2, the shutter curtain 1 is wound around the winding shaft 11, and the upper end of the shutter curtain 1 is coupled to the outer peripheral surface of the winding shaft 11. Further, the lower part of the shutter curtain 1 from the winding shaft 11 is suspended below the ceiling member 5 through a slit 17 provided in the lintel 16 disposed on the ceiling member 5, and further the shutter. Both ends in the width direction of the curtain 1 are slidably inserted into the left and right guide rails 6 as described above. 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 switch 13 includes a DC or AC electric motor device 18 and a brake device 19 arranged in parallel in the axial direction, and the drive shaft 14 described above includes an electric motor device. This is a rotating shaft arranged at the center of 18 rotating rotors 18A. A disc-shaped first brake member 20 is coupled to the end of the drive shaft 14 on the brake device 19 side. The brake device 19 is provided with a brake shaft 21 that is slidable by a fixed distance in the axial direction. The brake shaft 21 is coupled to a first brake member 20 and a second brake member 22 that faces in the axial direction. Has been. The brake shaft 21 and the second brake member 22 in the normal state are pressed toward the electric motor device 18 by the spring 23, so that the brake device 19 is pressed by the pressure contact between the first brake member 20 and the second brake member 22. Is on. Accordingly, the drive shaft 14 of the electric motor device 18 at this time is not rotated by the braking force of the brake device 19.

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

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

  In the present embodiment, as shown in FIG. 1, an electrical circuit such as a relay circuit or a computer control device 26 is attached to the switch 13, and the control device 26 is an electric motor for the switch 13. The motor device 18 and the brake device 19 are electrically controlled. The control device 26 may be attached to a member, means, device, or the like different from the opening / closing device 13, and the arrangement location thereof is arbitrary.

  Among the left and right building housings 3A and 3B shown in FIG. 1, in one building housing 3A, the shutter curtain 1 is opened and moved upward with respect to the entrance 2 and closed and moved downward. An operation device 30 is attached to cause the operation to be performed. 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. And has. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically.

  The curtain main body 1A is an opening / closing body main body in the present embodiment, and the seat plate 1B is an end member according to the present embodiment disposed at the end of the curtain main body 1A on the closing side of the shutter curtain 1. Yes.

  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 shutter button 1 of the operating device 30 is operated when the shutter curtain 1 that has reached the halfway position is in the half-closed state (half-open state), the control device 26 receives a signal from the “close” button. Since the solenoid 24 of the brake device 19 is energized by this control, the brake device 19 is turned off. Thus, the shutter curtain 1 is rotated downward from the take-up shaft 11 by rotating the take-up shaft 11 and the drive shaft 14 by the dead weight of the shutter curtain 1, and the shutter curtain 1 that is closed and moved thereby is brought into the fully closed position. When it reaches, the control of the control device 26 to which a signal from a sensor (not shown) that detects the fully closed position is input, the energization to the solenoid 24 is cut off, and the brake device 19 is turned on by the spring 23. In addition, when the shutter curtain 1 is fully closed, or the shutter curtain 1 is in a half-open state where the seat plate 1B reaches the midway position between the lintel 16 and the floor 4 as shown in FIG. When the “open” button is operated in a half-closed state), the solenoid 24 of the brake device 19 is energized under the control of the control device 26 to which a signal from the “open” button is input. While being turned off, the coil 25 of the electric motor device 18 is energized under the control of the control device 26. 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 moves 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 energization to the solenoid 24 is cut off and the brake device 19 is turned on by the spring 23 under the control of the control device 26 that receives a signal from a sensor (not shown) that detects the fully open position. At the same time, the power to the coil 25 is cut off by the control of the control device 26.

  Further, when the “stop” button is operated while the shutter curtain 1 is being closed and moved, the energization of the solenoid 24 is cut off by the control of the control device 26 to which a signal from the “stop” button is input. When the brake device 19 is turned on by the spring 23, the shutter curtain 1 stops at that position. 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 of the control device 26 to which a signal from the “stop” button is input. The brake device 19 is turned on by the spring 23, and energization of the coil 25 of the electric motor device 18 is interrupted by the control of the control device 26, whereby the shutter curtain 1 stops at that position.

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

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

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

  In the present embodiment, as shown in FIG. 3, a lever member 31 is disposed at the end of the brake shaft 21 opposite to the electric motor device 18 side. The lever member 31 penetrates the brake shaft 21 and includes a first portion 31A and a second portion 31B that are divided with the brake shaft 21 as a boundary. A first bent portion 31C is formed in the first portion 31A, and a second bent portion 31D is formed in the second portion 31B. When a load is applied to the first portion 31A in the A direction, that is, the side opposite to the electric motor device 18 side, the first portion 31A swings in the A direction with the second bent portion 31D as a fulcrum. 21 and the 2nd brake member 22 slide to A 'direction which is the same direction as A direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24.

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

  Note that the load in the A direction acts on the first portion 31A by an automatic closing device 32, which will be described later, which is a component device of the composite device 100 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 brake device 19 of the opening / closing machine 13 that is a driving device of the shutter curtain 1.

  Further, when a load in the same direction as the A direction acts on the second portion 31B, the second portion 31B swings in the same direction as the A direction with the first bent portion 31C as a fulcrum. 21 and the 2nd brake member 22 slide to A 'direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24 at this time.

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

  4 is a cross-sectional view taken along the line S4-S4 of FIG. 1, showing the structure of the portion of the seat plate 1B of the shutter curtain 1 shown in FIG. As described above, the shutter curtain 1 of the present embodiment includes the curtain main body 1A and the seat plate 1B, and the seat plate 1B includes the fixed portion 70A and the movable portion 70B. The shutter curtain 1 has a curtain main portion 71A and a curtain sub-portion 71B. The curtain main portion 71A is composed of a curtain body 1A and a fixed portion 70A of the seat plate 1B. The sub part 71B is configured by a 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.

  Also, as shown in FIG. 4, in the seat plate 1B, a fixed portion 70A coupled to the curtain body 1A is formed by inner and outer members 75 and 76 both having a cross-sectional box shape. The movable portion 70B is movable up and down with respect to 70A. As can be seen from FIG. 4, the lower surfaces of the inner and outer members 75, 76 forming the fixed portion 70A are openings 78, and the upper end of the rising portion 79 of the movable portion 70B extends from the opening 78 to the fixed portion 70A. Is inserted into the interior space. At the upper end of the rising portion 79, extending portions 79A and 79B extending outward in the thickness direction of the shutter curtain 1 are formed, and these extending portions 79A and 79B are formed at the lower end of the inner member 76 of the fixing portion 70A. By riding on the upper surfaces of the formed projecting piece portions 76A and 76B, the lower limit of movement of the movable portion 70B relative to the fixed portion 70A is defined.

  A swinging member 81 that can swing up and down around a fulcrum shaft 80 extending in the width direction of the shutter curtain 1 is housed inside the fixed portion 70A. As shown in FIG. 5, when the movable portion 70B is raised with respect to the fixed portion 70A, that is, when the shutter curtain 1 being moved in contact with the obstacle 34 shown in FIG. When the extending portion 79A of the rising portion 79 of the portion 70B pushes up the swinging member 81, the swinging member 81 swings upward about the fulcrum shaft 80.

  As shown in FIGS. 4 and 5, the case 33 shown in FIG. 1 is attached to the fixing portion 70 </ b> A of the seat plate 1 </ b> B, and the inside of the case 33 is shown in FIGS. 6 and 8. Is shown in As shown in FIG. 8, inside the case 33, a rotating member 35 that is a ratchet-hole type gear having a large number of teeth 35 </ b> A formed on the outer periphery at equal intervals in the circumferential direction; As will be described later, the take-up reel 37 is accommodated so as to be rotatable about a shaft 41 which is a fixed shaft fixed to the case 33, and is coaxial with the rotation center shaft serving as the shaft 41. The rotating member 35 and the take-up reel 37 are combined and integrated as will be described later. Further, the lower end of the lock wire 36 is coupled to the take-up reel 37, and the lower portion of the lock wire 36 extending downward from the lintel 16 portion has a shaft 29 </ b> A inside the case 33. The upper portion of the lock wire 36 extends upward from the upper surface of the case 33. Then, the upper end of the locking wire 36 extends to the direction changing device 38 shown in FIGS. 1, 2, and 14.

  In the above, the locking wire 36 whose lower portion is wound around the take-up reel 37 so as to be freely drawn out is a flexible string-like member. When the shutter curtain 1 closes and moves downward, the shutter curtain 1 closes and moves while the locking wire 36 is fed out from the take-up reel 37 that rotates in the S direction around the shaft 41 in FIG. .

  7 shows an overall front view of the case 33 in which the rotating member 35, the take-up reel 37, and the guide roller 29 are housed. FIG. 10 shows a cross section taken along line S10-S10 in FIG. The figure is shown. As shown in FIG. 10, a return spring storage space 37A (see also FIG. 8) is formed inside the take-up reel 37 in which a groove 37B for winding the lock wire 36 is formed on the outer periphery. In this return spring storage space 37A, a return spring 39, which is partially omitted in FIG. 8, is stored, and is a shaft that is the rotation center axis of the rotary member 35 and the take-up reel 37. This return spring 39 wound around the outer periphery of 41 is a mainspring spring. For this reason, the return spring 39 is a spiral spring in which the shaft 41 is inserted into the center.

  An inner end portion which is one end portion of the return spring 39 is fixed to the case 33 and connected to a shaft 41 which is a member on the case 33 side, and an outer end portion which is the other end portion will be described later. Thus, the rotary member 35 and the take-up reel 37 are connected. For this reason, when the rotating member 35 and the take-up reel 37 rotate in the S direction in FIG. 8 and the shutter curtain 1 closes and moves downward, the return spring 39 has a winding that rotates to feed out the locking wire 36. When the return spring force is accumulated by the take-up reel 37 and the shutter curtain 1 is opened and moved upward, the return spring force accumulated in the return spring 39 causes the rotating member 35 and the take-up reel 37 to be opposite to the S direction. By rotating in the direction, the lock wire 36 is wound around the take-up reel 37.

  Therefore, in the present embodiment, the take-up reel 37 and the return spring 39 constitute a take-up device 40 for taking up the lock wire 36 so as to be unwound. Further, when the shutter curtain 1 is opened and closed, the rotating member 35 and the take-up reel 37 are rotated by the lock wire 36.

  In the present embodiment, the return spring 39 that is a spiral spring by the mainspring spring is housed in a space 37 </ b> A formed inside the take-up reel 37, so that the thickness of the shutter curtain 1 with respect to the case 33 is increased. Even if the dimensions are small, as can be seen from FIG. 6, the dimension in the thickness direction of the shutter curtain 1 with respect to the take-up reel 37 can be made sufficiently large. The taking length is sufficiently long, and the shutter curtain 1 can be adapted to a shutter device having a long opening / closing movement distance.

  As shown in FIG. 8, a lock member 50 that is rotatable in the vertical direction about a shaft 56 provided in the case 33 is accommodated in the case 33. The lock member 50 of the present embodiment includes a main member 52 that does not have the tooth portion 53 that can be engaged with the tooth portion 35A of the rotating member 35 that is a ratchet wheel gear, and the shutter curtain 1. The main member 52 having a length in the width direction is fastened to the sub member 51 having a tooth portion 53. In this way, the lock member 50 is formed into a combined structure in which the sub member 51 and the main member 52 that are separate parts are overlapped in the thickness direction of the shutter curtain 1, so that the tooth portion 35 </ b> A of the rotating member 35 is formed. By quenching the sub-member 51 on which the engaging tooth portion 53 is formed, the tooth portion 53 can be similarly treated as the tooth portion 35A of the rotating member 35 without quenching the lock member 50 as a whole. , Great strength can be imparted. Further, by making the sub member 51 made of hard metal which is harder than the main member 52, the entire lock member 50 does not have to be formed of an expensive hard material.

  In this embodiment, as shown in FIG. 13, a plurality of tooth portions separated in the rotation direction of the lock member 50 around the shaft 56 are provided as the tooth portions 53 of the lock member 50. These tooth portions 53 in this embodiment are a first tooth portion 53A, a second tooth portion 53B, and a third tooth portion 53C, and these tooth portions 53A, 53B, and 53C are the rotations of the lock member 50. It is provided on a circular arc or a substantially circular arc centering on the shaft 56 that is the center of movement.

  Further, as shown in FIG. 4, the swinging member disposed so as to be swingable up and down around the fulcrum shaft 80 inside the fixed portion 70 </ b> A (curtain main portion 71 </ b> A) of the seat plate 1 </ b> B described above. A pressing member 54 is attached to 81.

  As can be seen from FIG. 8, the lock member 50 is provided with a torsion coil spring 57. As shown in FIG. 13, one end 57 </ b> B of the torsion coil spring 57 in which the coil portion 57 </ b> A is wound around the outer periphery of the large-diameter portion 56 </ b> B of the shaft 56 has the main member 52, the sub member 51, and the like. The other end portion 57C is engaged with both side surfaces 33B and 33C of the case 33 shown in FIG. Among these, it is locked to the case 33 by being inserted into a hole of a bent portion 33D formed at the lower end of the side surface portion 33C shown in FIG. Therefore, the torsion coil spring 57 is provided between the shaft 56 and the lock member 50 and the case 33, and the lock member 50 is centered on the shaft 56 by the spring force of the torsion coil spring 57 in FIG. It is urged to rotate in the M direction. As a result, a part of the lock member 50 swings up and down freely around the pressing member 54 provided in the shutter curtain 1, that is, around the fulcrum shaft 80 provided in the curtain main portion 71A of the shutter curtain 1. The pressing member 54 disposed on the member 81 is in contact with the pressing member 54.

  For this reason, as will be described later, the shutter curtain 1 and the lock member 50 have the lock member 50 in the M direction in FIG. 8 when the shutter curtain 1 being moved in contact with the obstacle 34. A shutter curtain side contact portion 58 and a lock member side contact portion 59 that are in contact with each other in order to rotate in the opposite N direction are provided. The shutter curtain side contact portion 58 is formed by the pressing member 54, and the lock member side contact portion 59 is connected to the first lock member side contact portion 59 </ b> A and the second lock in the main member 52 of the lock member 50. There are two member side contact portions 59B. The first lock member side contact portion 59A and the second lock member side contact portion 59B are separated from each other in the width direction of the shutter curtain 1, which is the length direction of the lock member 50.

  Providing the lock member 50 with the first lock member side contact portion 59A and the second lock member side contact portion 59B constitutes the lock member 50 as shown in FIGS. It can be realized by forming a portion of the main member 52 that does not overlap with the sub member 51 into an L shape or a substantially L shape.

  In the present embodiment, among the lock member side contact portions 59, the first lock member side contact portion 59A is formed by the leaf spring 60 coupled to the main member 52. The member side contact portion 59A is an elastic portion that can be elastically deformed.

  As shown in FIGS. 6 and 8, the main member 52 of the lock member 50 has an extension member having a length extending on both sides in the thickness direction of the lock member 50, which is the thickness direction of the shutter curtain 1. 63 is provided, and the extending member 63 is formed by a rod-like member that penetrates the main member 52. As shown in FIG. 6, a bent stop portion 33E is provided at the lower end of the side surface portion 33C of the case 33. For this reason, the case 33 in which the lock member 50 and the like are housed is arranged. Is attached to the fixing portion 70A of the seat plate 1B of the shutter curtain 1 even if the lock member 50 is urged to rotate in the M direction in FIG. When the end of the extending member 63 comes into contact with the stop portion 33E, the limit of rotation of the lock member 50 in the M direction is defined. It is possible to eliminate the protrusion from the lower surface opening 33.

  As shown in FIG. 5, the seat plate 1 </ b> B of the shutter curtain 1 in the closed movement abuts against the obstacle 34 shown in FIG. 1. When the movable portion 70B (curtain sub-portion 71B) rises relative to the curtain main portion 71A), the swing member 81 swings upward about the fulcrum shaft 80. 50 rotates in the N direction about the shaft 56 in FIG. As a result, the tooth portion 53 of the lock member 50 is engaged with the tooth portion 35A of the rotating member 35 as shown in FIG. 9, and by this engagement, the rotating member 35 and the rotating member 35 are coupled. The integrated take-up reel 37 cannot be rotated in the rotation direction (S direction in FIG. 8) when the shutter curtain 1 is moving in the closing direction. For this reason, the rotation member 35 and the take-up reel 37 are disabled. Is locked by the lock member 50 and cannot be rotated.

  For this reason, at this time, the lock wire 36 partially wound on the take-up reel 37 and the shutter curtain 1 on which the take-up reel 37 is disposed are mechanically coupled. Therefore, in this embodiment, the mechanical coupling device 55 for mechanically coupling the lock wire 36 that is a string-like member and the shutter curtain 1 is configured by the rotating member 35, the lock member 50, and the like. become.

  As described above, the lock member 50 is configured by stacking the main member 52 having the length in the width direction of the shutter curtain 1 and the sub member 51 in the thickness direction of the shutter curtain 1. As shown in FIG. 13, the sub member 51 is attached to the main member 52 so as to be rotatable about a rotation center shaft 61. The main member 52 is formed with an arc-shaped elongated hole 52A centering on the rotation center shaft 61, and is a fastening screw member inserted into the elongated hole 52A from a round hole of the sub member 51. The shaft portion of the bolt 62 is inserted, and the end portion of the shaft portion of the bolt 62 protruding from the long hole 52A is screwed to a nut that is prevented from rotating around the main member 52 and is movable along the long hole 52A. Then, by tightening the bolt 62, the sub member 51 is fastened to the main member 52 with the bolt 62 and the nut. Further, when the bolt 62 is loosened, the sub member 51 can be rotated with respect to the main member 52 around the rotation center shaft 61 by the elongated hole 52A for guiding the shaft portion of the bolt 62. When the bolt 62 is tightened later, the sub member 51 whose position relative to the main member 52 is changed and adjusted can be fastened to the main member 52 again with the bolt 62 and the nut.

  For this reason, in this embodiment, the bolt 62 in which the shaft portion is screwed to the nut is a fastening member for fastening and releasing the main member 52 and the sub member 51.

  The small-diameter portion 56A of the shaft 56 is inserted into the round hole of the main member 52 so that the sub member 51 can be rotated about the rotation center shaft 61 with respect to the main member 52. In addition, the hole 51A formed in the sub member 51 for inserting the small diameter portion 56A is an arc-shaped long hole centered on the rotation center shaft 61 as shown in FIG. It has become. The coil portion 57A of the torsion coil spring 57 is wound around the outer periphery of the large-diameter portion 56B of the shaft 56.

  In the present embodiment, the position of the sub member 51 relative to the main member 52, more specifically, the rotation center shaft 61 is determined by the rotation center shaft 61 and the bolt 62 having a nut screwed into the shaft portion. The position adjusting means 64 shown in FIG. 13 for adjusting the position of the sub member 51 with respect to the main member 52 as the center is configured.

  When the position adjusting means 64 adjusts the position of the sub member 51 with respect to the main member 52 with the rotation center shaft 61 as the center, as can be seen from FIG. Since the size of the gap 65 between the tip of the tooth portion 35 </ b> A changes and is adjusted, the position adjusting means 64 also becomes a gap adjusting means 66 that can adjust the size of the gap 65. In this embodiment, the gap adjusting means 66 is provided on the lock member 50.

  Further, in the present embodiment, in order to allow the gap adjusting means 66 to adjust the size of the gap 65, the position of the rotation center shaft 61 is the rotation axis of the entire lock member 50. Is shifted in the width direction of the shutter curtain 1, which is the length direction of the lock member 50. As can be seen from FIG. This is the direction opposite to the rotating member 35 with respect to the shaft 56.

  Both ends of the shaft 56 that is the central axis of rotation of the entire lock member 50 are inserted into holes formed in both side surfaces 33B and 33C of the case 33 shown in FIG. These holes are shown as elongated holes 67 in FIGS. The longitudinal direction of the long hole 67 is a direction toward the rotating member 35. That is, the hole 67 formed to insert and support both end portions of the shaft 56 in the case 33 is a long hole that is elongated toward the rotating member 35. For this reason, the lock member 50 and the shaft 56 are movable toward and away from the rotating member 35.

  The coil portion 57A is wound around the outer periphery of the shaft 56, and the torsion coil spring 57 provided between the case 33, the shaft 56, and the lock member 50 causes the shaft 56 and the lock member 50 to be moved by the spring force. The torsion coil spring 57 is constantly urged toward the rotating member 35 indicated by the arrow X in FIG. 13 and is an elastic member having such an urging force. By the elastic biasing force of the elastic member, the shaft 56 is pressed against the end of the elongated hole 67 on the rotating member 35 side, whereby the size of the gap 65 becomes the size set by the gap adjusting means 66.

  The case 33 which is attached to the fixing portion 70A of the seat plate 1B of the shutter curtain 1 and in which the above-described mechanical coupling device 55 is housed is a case main body 85 as can be seen from FIGS. And a lid member 86 that covers the case main body 85. The case body 85 coupled to the fixing portion 70A of the seat plate 1B of the shutter curtain 1 by the coupling tool 84 such as a screw shown in FIG. 7 and FIG. 8 is the thickness of the shutter curtain 1 as shown in FIG. A main portion 85A facing the lid member 86 in the vertical direction, and a bent portion 85B of the entire outer edge portion of the main portion 85A that is bent in the thickness direction of the shutter curtain perpendicularly from the main portion 85A. A threaded hole 85D is formed in the tongue piece portion 85C provided in the bent portion 85B shown in FIG. A shaft portion of a fastening tool 87 such as a screw is inserted into the hole of the lid member 86 shown in FIG. 7, and this shaft portion is screwed into the screw hole 85D, thereby attaching the lid member 86 to the case body 85. be able to. Further, the lid member 86 can be separated from the case main body 85 by removing the fastener 87.

  That is, the lid member 86 can be attached to and detached from the case main body 85.

  As shown in FIG. 7, the lid member 86 is formed with a window hole 86A through which the inside of the case 33 can be seen, and the gap adjusted by the gap adjusting means 66 in FIG. An operation for confirming the size of 65 can be performed. This confirmation operation is performed by inserting, for example, an inspection tool such as a clearance gauge between the tooth portion 35A of the rotating member 35 and the tooth portion 53 of the lock member 50 from the window hole 86A. When it is determined that the size is inappropriate, the lid member 86 is removed, and then the bolt 62 described with reference to FIG. 13 is loosened to rotate the position of the sub member 51 relative to the main member 52 of the lock member 50. By adjusting the center axis 61 as the center, the size of the gap 65 can be adjusted to an appropriate size.

  Note that the window hole 86A of the lid member 86 attached to the case body 85 may be closed with a closing member such as an adhesive sheet after the adjustment of the gap 65.

  Further, the window hole through which the inside of the case 33 can be visually recognized may be provided not only in the lid member 86 but also in the case main body 85. According to this, before attaching the case 33 to the fixing portion 70A of the seat plate 1B of the shutter curtain 1, the size of the gap 65 can be confirmed by the aforementioned inspection tool inserted from the window hole provided in the lid member 86, It becomes possible to check the size of the gap 65 by an inspection tool inserted from a window hole provided in the case body 85. Further, even if the inspection tool is long in the thickness direction of the shutter curtain 1, By passing this inspection tool through the window holes provided in both the case main body 85 and the lid member 86, the size of the gap 65 can be confirmed.

  Unlike the above description, the main member 52 and the sub member 51 of the lock member 50 are formed of the same material, and the tooth portion 53 of the sub member 51 is subjected to a hard surface coating process such as hard chrome plating. The tooth portion 53 may be given the required hardness.

  The case 33 of the present embodiment has the case main body 85 and the lid member 86 as described above, and the case main body 85 is opposed to the lid member 86 in the thickness direction of the shutter curtain 1. 6 and FIG. 10, which is a sectional view taken along line S10-S10 of FIG. 7, this main portion 85A is the shutter of the side portions 33B and 33C of the case 33 described above. A side surface portion 33B close to the curtain body 1A of the curtain 1 is formed, and the lid member 86 forms a side surface portion 33C far from the curtain body 1A, and these side surface portions 33B and 33C are the thickness of the shutter curtain 1. Opposite direction.

  Further, in the present embodiment, as shown in FIG. 10, a stepped portion 85 </ b> E that forms a step in the thickness direction of the shutter curtain 1 in the middle in the vertical direction of the main portion 85 </ b> A of the case main body 85. The upper and lower portions of the stepped portion 85E are a first surface portion 88 and a second surface portion 89 of the main portion 85A. The upper first surface portion 88 is a location close to the lid member 86 in the main portion 85A, and the lower second surface portion 89 is a location far from the lid member 86 in the main portion 85A. .

  As shown in FIG. 10, the rotating member 35 and the take-up reel 37 described above are coupled and integrated by a coupling tool 42 such as a screw, and this combined integration is achieved by connecting the shaft 41 to the rotating member 35 and the take-up reel. It is carried out coaxially as 37 common rotation center axes. The aforementioned return spring storage space 37 </ b> A provided for storing the return spring 39 inside the take-up reel 37 is a through space penetrating in the axial direction of the take-up reel 37. For this reason, the width dimension of the return spring 39 that is a spiral spring by the mainspring spring can be made as large as the axial dimension of the take-up reel 37 (the thickness dimension of the take-up reel). Therefore, the return spring 39 can accumulate a large return spring force when the shutter curtain 1 is closed, and when the shutter curtain 1 is opened, this return spring force causes the lock wire 36 to be more securely attached to the take-up reel 37. It can be set as a spring with a large spring force which can be wound around.

  In the present embodiment, among the openings on both sides in the axial direction of the return spring storage space 37A, the opening on the curtain body 1A side of the shutter curtain 1 is closed by the rotating member 35 and the curtain body of the shutter curtain 1 The opening on the side opposite to the 1A side is closed by a closing member 43. The closing member 43 has a cup shape having a closing member main body 43A facing the rotating member 35 in the axial direction and a flange portion 43B formed in a ring shape on substantially the entire circumferential edge of the closing member main body 43A. The flange 43B is press-fitted into the return spring housing space 37A, and the tip of the flange 43B is in contact with the rotating member 35. A shaft 41 serving as a rotation center axis common to the rotating member 35 and the take-up reel 37 passes through the return spring housing space 37A inside the take-up reel 37 and is formed in the rotating member 35 and the closing member main body 43A. The one end of the shaft 41 projecting from the hole formed in the main portion 85A of the case main body 85 and the lid member 86 to the outside of the case 33 has a retaining member. 44 is attached.

  As shown in FIG. 10, the lid member 86 has a take-up reel axial position defining portion 45 for defining the axial position of the take-up reel 37 that is rotatable about the shaft 41. , Provided outside the return spring storage space 37 </ b> A about the shaft 41. As can be seen in FIG. 10, the take-up reel axial direction position defining portion 45 projects toward the take-up reel 37, and as can be seen in FIG. It is a protrusion provided. Such a take-up reel axial position defining portion 45 can be formed by half-cutting a sheet metal lid member 86.

  In this way, the take-up reel axial position defining portion 45 is provided so as to protrude toward the take-up reel 37, and a plurality of protrusions are provided in the circumferential direction around the shaft 41. Since the contact area between the take-up reel axial position defining portion 45 and the take-up reel 37 and the rotational frictional resistance are reduced, the take-up reel 37 can be smoothly rotated around the shaft 41.

  The lid member 86 is provided with a closing member axial position defining portion 46 for defining the axial position of the closing member 43 that is rotatable about the shaft 41. As shown in FIG. 10, the blocking member axial position defining portion 46 protrudes toward the closing member 43, and as shown in FIG. 7, a circular protrusion in which the shaft 41 is inserted in the center. Has become a department. The closing member axial position defining portion 46 can also be formed by performing half-punching or drawing on a sheet metal lid member 86.

  By providing the take-up reel axial position defining portion 45 and the closing member axial position defining portion 46 in the lid member 86, the rotating member 35 becomes the main portion 85 </ b> A of the case main body 85 as shown in FIG. 10. In addition to being in contact with the inner surface, the positions of the rotating member 35 and the take-up reel 37 in the axial direction of the shaft 41 can be defined. In other words, the take-up reel provided in the lid member 86 may be configured such that the return spring storage space 37A provided inside the take-up reel 37 for storing the return spring 39 is used as a through space penetrating in the axial direction as described above. The positions of the rotating member 35 and the take-up reel 37 in the axial direction of the shaft 41 can be defined by the axial position defining portion 45 and the closing member axial position defining portion 46, and thus the tooth portion 53 of the lock member 50 can be defined. It becomes possible to engage with the tooth portion 35A of the rotating member 35 more reliably.

  As shown in FIG. 10, the shaft 41 is formed with a split groove 41A cut from the end on the lid member 86 side, and the split groove 41A is a spiral spring formed by a mainspring spring. An inner end 39 </ b> A, which is one end of the spring 39, is inserted and locked, whereby the inner end 39 </ b> A is connected to the shaft 41. Further, a loop portion 39B is formed at the outer end portion which is the other end portion of the return spring 39 (see also FIG. 8).

  As can be seen from FIG. 10, an insertion portion 35B is formed on the rotating member 35, which is a plate-like member, by cutting and raising, and the insertion portion 35B is inserted into the loop portion 39B. Further, the insertion member 43C is also formed in the closing member 43, and this insertion portion 43C is provided at a location where the aforementioned flange portion 43B of the closing member 43 is missing, as can be seen in FIG. 43C is also inserted into the loop portion 39B. As a result, the loop portion 39B, which is the outer end portion of the return spring 39, is connected to the rotating member 35, the take-up reel 37 coupled to the rotating member 35 by the coupling tool 42, and the closing member 43. Will be. Therefore, as described above, when the shutter curtain 1 closes and moves downward and the rotating member 35 and the take-up reel 37 rotate in the S direction in FIG. 8, the lock wire 36 is fed out to the return spring 39. The return spring force is accumulated by the take-up reel 37 rotating in the direction of the rotation, and when the shutter curtain 1 opens and moves upward, the return spring force accumulated in the return spring 39 causes the rotation member 35 and the take-up reel 37 to move in the S direction. Is rotated in the opposite T direction, whereby the lock wire 36 is wound around the take-up reel 37.

  The insertion portion 35B of the rotating member 35 and the insertion portion 43C of the closing member 43 are inserted into the loop portion 39B of the return spring 39, whereby the rotating member 35 and the closing member 43 are connected via the loop portion 39B. Therefore, even if the closing member 43 is not coupled to the take-up reel 37 with screws or the like, or the flange portion 43B of the closing member 43 is input to the return spring storage space 37A of the take-up reel 37 with a large pressure. The rotary member 35 and the closing member 43 can be connected in the rotational direction about the shaft 41 without being press-fitted or simply inserted without being press-fitted.

  As shown in FIG. 10, the end of the case body 85 on the main portion 85A side of both ends of the shaft 41 protrudes from the main portion 85A, and the spacer 47 and the rotating member are formed on the protruding end. A rotation plate 48 and a retaining member 49 are attached, and the rotation plate 48 is coupled and integrated with the shaft 41. FIG. 11 is a view taken in the direction of arrow S11 in FIG. 10. As shown in FIG. 11, the rotating plate 48 having a disc shape with the shaft 41 penetratingly fixed to the center portion includes the shaft 41. A plurality of holes 48A are provided at equal intervals in a circumferential direction centering on the center. Further, as shown in FIG. 10, an opening 85 </ b> F for allowing the lower portion of the rotating plate 48 to be inserted is formed in the above-described stepped portion 85 </ b> E of the case main body 85.

  Of the main portion 85A of the case main body 85, the second surface portion 89 below the stepped portion 85E is provided with a protruding portion 85G protruding toward the rotating plate 48 by cutting or the like, and the protruding portion 85G The shaft portion of the bolt 101 that is a pin-like member is screwed into the formed screw hole 85H, and this shaft portion can be inserted into the hole 48A of the rotating plate 48. By performing this insertion, the rotating plate 48 and the shaft 41 to which the rotating plate 48 is coupled are fixed to the case 33 so as not to rotate.

  Further, after the shaft portion of the bolt 101 is removed from the hole 48A by the rotation operation of the bolt 101, the rotation plate 48 is rotated or the tool is engaged with the engagement groove 41B provided on the shaft 41. By performing the rotation operation of 41, the shaft 41 can be rotated with respect to the case 33. When this rotation is performed, the return spring 39 having the inner end 39 </ b> A connected to the shaft 41 and wound around the outer periphery of the shaft 41 rotates the inner end 39 </ b> A in the circumferential direction of the return spring 39. Therefore, since the winding is tightened or the tightening is eased according to the rotation direction of the shaft 41, the spring force of the return spring 39 which is a spiral spring by the mainspring spring is adjusted. Later, by inserting the shaft portion of the bolt 101 into the hole 48 </ b> A of the rotating plate 48 reaching the portion facing the shaft portion, the shaft 41 is again fixed to the case 33 so as not to rotate.

  For this reason, the return spring 39 is provided by the shaft 41, the rotating plate 48, the bolt 101 that is disposed in the screw hole 85H of the case 33, and is a pin-like member that can be inserted into and removed from the hole 48A of the rotating plate 48. The spring force adjusting means 102 is configured for adjusting the magnitude of the spring force. The spring force adjusting means 102 is a means configured to rotate the inner end portion of the return spring 39 by rotating the shaft 41.

  The bolt 101 serving as a pin-like member is formed in the case 33 and one hole 48A among the holes 48A formed in the circumferential direction around the shaft 41 in the rotating plate 48. By being inserted into the screw hole 85H, it serves as a connecting member for connecting the rotated plate 48 and the case 33 around the shaft 41.

  According to this spring force adjusting means 102, even if the spring force of the return spring 39 changes due to repeated opening / closing movement or aging deterioration of the shutter curtain 1, the return spring is used to wind the lock wire 36 around the take-up reel 37. The magnitude of the return spring force accumulated in 39 can be adjusted to an appropriate value.

  Further, the spring force adjusting means 102 adjusts the spring force of the return spring 39 to, for example, a magnitude corresponding to the up / down movement stroke of the shutter curtain 1 shown in FIG. It can also be used to adjust to an appropriate size when the shutter curtain is fully opened, reaching the position of the lintel 16.

  Further, in the spring force adjusting means 102 of the present embodiment, adjusting the spring force of the return spring 39 is to rotate the rotating plate 48 or engage the tool in the engaging groove 41B provided in the shaft 41, Since this is done by rotating the shaft 41 with this tool, the location of the rotating plate 48 and the location where the engagement groove 41B of the shaft 41 is provided are the operating locations operated in the spring force adjusting means 102. . In the present embodiment, as shown in FIG. 4, the operation location and the case 33 in which the take-up reel 37 is housed are arranged side by side in the thickness direction of the shutter curtain 1. The operation location is arranged between the case 33 and the curtain body 1A described above in the shutter curtain 1.

  According to this, after attaching the case 33 in which the spring force adjusting means 102 has been assembled in advance to the fixing portion 70A of the seat plate 1B of the shutter curtain 1, the operator or the like mistakenly or others have adjusted this after the spring force adjustment. It is possible to prevent the operation part from being operated. Therefore, after the case 33 is attached to the fixing portion 70A of the seat plate 1B of the shutter curtain 1, the spring force of the return spring 39 can be maintained at the adjusted magnitude.

  In order to allow an operator or the like to operate the spring force adjusting means 102 even after the case 33 is attached to the fixing portion 70A, the operating position of the spring force adjusting means 102 is designated as the shutter curtain 1 in the case 33. You may provide in the location on the opposite side to 1 A of curtain main bodies.

  Further, as shown by a two-dot chain line in FIG. 10, among the members constituting the lock member 50 described above, the main member 52 ′ is extended beyond the sub member 51 to the side surface of the rotating member 35. It is good also as what has a part. According to this, in the rotating member 35, the portion facing the second surface portion 89 of the main portion 85 </ b> A of the case main body 85 has a space portion between this portion and the second surface portion 89. The rotation of the rotary member 35 and the take-up reel 37 can be prevented from being displaced toward the second surface portion 89 by the extended portion of the main member 52 ', whereby the tooth portion 35A of the rotary member 35 and the locking member can be prevented. Engagement of the 50 sub-members 51 with the tooth portions 53 can be realized more reliably.

  Further, in the case where the extended portion is provided in the main member 52 ′ as described above, the window hole provided for inserting an inspection tool such as a clearance gauge into the lid member 86 or the case body 85 of the case 33 as described above. A hole similar to 86A may be provided in this extended portion.

  Further, according to the present embodiment, the take-up reel 37 and the return spring 39 are housed inside the case 33 and disposed on the seat plate 1B that serves as the end member of the shutter curtain 1 described above. The take-up reel 37 and the return spring 39 can be effectively protected from external force when the shutter curtain 1 is opened and closed. Since the mechanical coupling device 55 described above is also housed in the case 33 and disposed on the seat plate 1B of the shutter curtain 1, the mechanical coupling device 55 is also used when the shutter curtain 1 is opened and closed. It can be effectively protected from external forces.

  As shown in FIG. 8, a guide member 103 for guiding the above-described locking wire 36 is arranged in the case 33. The guide member 103 made of synthetic resin includes a first guide portion 103A facing the outer periphery of a part of the guide roller 29 described above inside the case 33, and a lock wire 36 inside and outside the case 33. The second guide portion 103B is disposed at a place where it enters and exits, and a part of the second guide portion 103B is exposed to the outside of the case 33 and the other portion is housed inside the case 33. A hole 103 </ b> C through which the lock wire 36 is vertically inserted is formed as a long hole in the width direction of the shutter curtain 1.

  103 A of 1st guide parts are arrange | positioned in the position close | similar to the outer peripheral surface of the guide roller 29 between the guide roller 29 and the locking member 50 arrange | positioned below this guide roller 29. FIG. For this reason, even if the locking wire 36 is loosened before performing the work of attaching the case 33 to the shutter curtain 1, the first guide portion 103A prevents the loosened portion from reaching the locking member 50. Can do. In addition, when the shutter curtain 1 is moved up and down, the tension of the portion of the lock wire 36 that is hung around the guide roller 29 may disappear, and this portion contacts the lock member 50. It can be prevented by the first guide portion 103A, and it can be ensured that the shutter curtain 1 is normally opened and closed. That is, the first guide portion 103 </ b> A of the guide member 103 can prevent a situation in which the lock wire 36 is entangled with the lock member 50.

  12 is a cross-sectional view taken along line S12-S12 of FIG. As shown in FIG. 12, both ends of the extending member 63 fixed to the main member 52 of the lock member 50 through the thickness of the lock member 50 are the shutter curtains in the case 33. 1 is in contact with the inner surfaces of the two side surface portions 33B and 33C facing each other in the thickness direction, or faces the inner surfaces of these side surface portions 33B and 33C with a slight gap. The portion of the lock member 50 where the extending member 63 is disposed is the length of the lock member 50 that is the width direction of the shutter curtain 1 from the shaft 56 that is the rotation center axis of the entire lock member 50. It is a place away in the direction. For this reason, as described above, when the shutter curtain 1 in the closing movement is brought into contact with the obstacle 34, the lock member 50 rotates about the shaft 56 in the N direction in FIG. 8 or in the M direction. When rotating, the lock member 50 swings around the shaft 56 in the thickness direction of the lock member 50 (the thickness direction of the shutter curtain 1 and the thickness direction of the rotating member 35 described above). Blocked by member 63.

  Therefore, as can be seen from FIG. 6, the rotary member 35 is formed of a plate material having a small thickness, and the sub member 51 of the lock member 50 includes the tooth portion 53 that engages with the tooth portion 35 </ b> A of the rotary member 35. In addition, even if it is formed of a plate-like material having the same thickness as the rotating member 35, the extending member 63 prevents the locking member 50 from swinging in the thickness direction of the locking member 50 around the shaft 56. Therefore, when the locking member 50 rotates in the N direction in FIG. 8 about the shaft 56 by the shutter curtain 1 being moved in contact with the obstacle 34, the teeth of the sub member 51 of the locking member 50 The portion 53 can be more reliably engaged with the tooth portion 35 </ b> A of the rotating member 35.

  For this reason, the extending member 63 prevents the lock member 50 from swinging in the thickness direction of the lock member 50 around the shaft 56, in other words, in the axial direction of the shaft 56 and in the thickness direction of the rotating member 35. This is a locking member steadying means.

  The fact that the lock member 50 swings in the thickness direction of the lock member 50 about the shaft 56 means that the size of the hole of the lock member 50 through which the shaft 56 is inserted or the case where both ends of the shaft 56 are inserted. This occurs when the size of the hole 33 is not an accurate predetermined value and is larger than the predetermined value. For this reason, according to this embodiment, by providing the extending member 63 in the lock member 50, it is not necessary to set the size of these holes to an accurate predetermined value, so that these holes can be easily processed. Become.

  Moreover, the extending | stretching member 63 of this embodiment is a product made from a hard synthetic resin with a smaller friction coefficient than a metal, for example. For this reason, even if both ends of the extending member 63 come into contact with the inner surfaces of the side surfaces 33B and 33C of the case 33 made of metal, the lock member 50 can be smoothly rotated up and down around the shaft 56. Can be ensured.

  FIG. 14 shows a specific structure of the direction changing device 38 shown in FIGS. 1 and 2. The direction changing device 38 determines the direction of the lock wire 36 that is a flexible string-like member extending vertically upward or substantially vertically upward from the case 33 of the shutter curtain 1 according to the thickness of the shutter curtain 1. This is for conversion to the horizontal direction or the substantially horizontal direction. The main body 38A of the direction changing device 38 is mounted and fixed to a step portion 16C formed horizontally or substantially horizontally on the upper or lower middle portion or the upper surface of the lintel member 16A among the members constituting the lintel 16 described in FIG. Has been. A plurality of guide rollers 90 are rotatably provided on the main body 38A.

  In the present embodiment, there are five guide rollers 90A to 90E, and the first guide roller 90A is disposed at a position closest to the shutter curtain 1, and is a second guide provided on the upper side of the first guide roller 90A. The roller 90B is disposed at a position closest to the shutter curtain 1, and a third guide roller 90C provided on the upper side of the second guide roller 90B is disposed at a position closest to the shutter curtain 1. The fourth guide roller 90D having the same or substantially the same height position as the third guide roller 90C is disposed at a position farthest from the shutter curtain 1. The fifth guide roller 90E is disposed above the third guide roller 90C.

  The locking wire 36 extending vertically upward or substantially vertically upward from the case 33 is guided by the first to fourth guide rollers 90A to 90D and is moved up and down by the third guide roller 90C and the fifth guide roller 90E. The direction of the shutter curtain 1 is changed in the horizontal or substantially horizontal direction, which is the thickness direction of the shutter curtain 1, and the converted lock wire 36 is slidably inserted into the cylindrical guide member 91. Yes.

  The guide member 91 includes a bent portion 38B formed on the main body 38A, a rising portion 16D rising from the step portion 16C of the lintel member 16A, and two downward extending portions 92A and 92B of the support member 92. The end portion of the lock wire 36 protrudes from the end portion of the guide member 91. The end portion of the lock wire 36 is protruded from the end portion of the guide member 91.

  As can be seen from FIG. 2, the support member 92 is an intermediate member 93 interposed between the shutter box 8 and the lintel member 16A in order to attach the lintel member 16A to the shutter box 8 described above. Is bound to.

  In this embodiment, as shown in FIG. 8, the locking wire 36 whose lower end is coupled to the take-up reel 37 is directly extended from the take-up reel 37 to the outside of the case 33. Instead, it extends to the outside of the case 33 through the guide roller 29, and the height position of the rotation center shaft 29A of the guide roller 29 is set to the rotation center shaft 41 of the take-up reel 37 as shown in FIG. As shown in FIG. 14, the shutter curtain 1 is opened to the fully open position by setting the guide roller 29 to a position lower than the height position of the guide roller 29 or making the diameter of the guide roller 29 smaller than the diameter of the take-up reel 37. When moved, in other words, when the position of the lower surface of the seat plate 1B of the shutter curtain 1 coincides with or substantially coincides with the position of the lower surface of the lintel 16, the lock wire 36 Can be converted into a predetermined horizontal direction or a substantially horizontal direction by a direction changing device 38 disposed on the step portion 16C of the lintel member 16A which is a stationary member with respect to the shutter curtain 1 which is opened and closed. Yes.

  In other words, by setting the height position where the direction changing device 38 is arranged to be lower than the height position of the upper surface of the case 33, the direction changing device 38 is immovable with respect to the shutter curtain 1 that is opened and closed. It can arrange | position to the step part 16C of the lintel member 16A which is an immovable member.

  As shown in FIGS. 1 to 3, the composite device 100 is placed and fixed on the upper part of the switch 13. FIG. 15 is a front view showing the internal structure of the composite apparatus 100, and FIG. 16 is a plan view showing the internal structure of the composite apparatus 100. The composite device 100 is a device in which an automatic closing device 32, an intermediate device 200, and a delay device 300 are combined. The automatic closing device 32 brakes the switch 13 in the event of a disaster such as a fire. By controlling the device 19 mechanically, the shutter curtain 1 that has been stopped at the fully open position or in the middle of the opening and closing direction is automatically closed and moved to the fully closed position, and has smoke resistance and / or fire resistance. 1 for closing the doorway 2 of FIG.

  The composite apparatus 100 is attached to the upper part of the opening / closing machine 13 by a bracket portion 110A of FIG. 15 provided in the machine casing 110 of the composite apparatus 100. This state is also shown in FIG. Further, as shown in FIG. 16, each end of the first control wire 111, the second control wire 112, and the third control wire 113 for controlling the composite device 100 up to the composite device 100. The part is stretched. 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 FIGS. 1, 2, and 14, the first control wire 111 extends from the composite device 100 to the vicinity of the direction changing device 38, and the end of the first control wire 111 is As shown in FIG. 14, the locking wire 36 is connected via a connecting member 94. In addition, the end portion of the outer cable 114 of the first control wire 111 is coupled to the downward extension portion 92 </ b> B of the two downward extension portions 92 </ b> A and 92 </ b> B of the support member 92.

  In this embodiment, the locking wire 36 and the first control wire 111 are separate members connected by the connecting member 94, but the locking wire 36 is extended to the composite device 100 to perform the first control. The wire 111 may be omitted.

  As shown in FIGS. 15 and 16, the automatic closing device 32 and the intermediate device 200, each of which is a component of the composite device 100, are arranged in the machine casing 110 of the composite device 100. ing. In other words, the machine frame in which the automatic closing device 32 is arranged and the machine frame in which the intermediate device 200 is arranged are the same machine frame 110, and in this machine frame 110, the automatic closing device 32 and the intermediate device 200 are mutually connected. Adjacent to each other. Further, as will be apparent from the description to be described later, the above-described delay device 300 is also arranged in the machine casing 110. For this reason, the automatic closing device 32, the intermediate device 200, and the delay device 300 are formed as a single unit. For this reason, the factory for the automatic closing device 32, the intermediate device 200, and the delay device 300 is used. Therefore, handling work such as transport to the shutter device installation site and maintenance work can be easily performed.

  Of the automatic closing device 32, the intermediate device 200, and the delay device 300, the intermediate device 200 and the delay device 300 are disposed in the upper part of the machine casing 110. The figure is shown in FIG. Further, the automatic closing device 32 is disposed in the lower part inside the machine casing 110, and a plan view of the automatic closing device 32 is shown in FIG.

  The intermediate device 200 is interposed between the first control wire 111 connected to the mechanical coupling device 55 shown in FIGS. 8 and 9 via the locking wire 36 and the automatic closing device 32. It is a deployed device. In other words, the intermediate device 200 is a connection device for directly connecting the first control wire 111 that is a string-like member and the automatic closing device 32.

  Next, the automatic closing device 32 will be described.

  As shown in FIGS. 15 and 16, the machine casing 110 of the composite apparatus 100 is provided with two rising portions 110 </ b> B and 110 </ b> C that face each other, and are formed in these rising portions 110 </ b> B and 110 </ b> C. The plate-like first slide member 120 shown in FIG. 17B having a length extending over the two rising portions 110B and 110C is slidably inserted into the holes 110D and 110E shown in FIG. A spring 121 is wound around the outer periphery of the first 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 first 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 FIGS. 3 and 15, an operating member 122 is attached to a bent portion 120 </ b> A that is bent downward at the front end of the first slide member 120, and the lever member of FIG. 3 is also attached. An actuated member 123 is erected and coupled to the first portion 31 </ b> A of 31. When the first slide member 120 moves forward by the spring force of the spring 121, the actuating member 122 abuts on the actuated member 123, so that the load in the A direction shown in FIG. It comes to work. As shown in FIG. 15, the actuating member 122 of the present embodiment is a head portion 124 </ b> A of the bolt 124. Therefore, the bolt 124 is bent by bending the first slide member 120 by rotating the head portion 124 </ b> A. By moving the part 120A forward and backward, 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. 17B, a solenoid 126 is attached to the machine casing 110 of the composite apparatus 100, and the spring force of the spring 128 causes the plunger 127 to move to the plunger 127 of the solenoid 126. It always acts in the direction of protruding from 126. A distal end member 140 is attached to the distal end of the plunger 127, and one end of an L-shaped bent lever member 129 that is rotatable about the central axis 129A is in contact with the distal end member 140. Yes. As can be seen from FIG. 15, the tip member 140 having an inverted L shape is provided with a raising / lowering member 141 on the surface opposite to the surface with which the one end of the bending lever member 129 is in contact. The raising / lowering member 141 is in contact with the center of the lower part through which the center shaft 142A (see also FIG. 15) by the screw provided at the rising portion of the bracket 142 shown in FIG. It is easy to rise and fall.

  And the roller 130 is rotatably provided in the other edge part of the bending lever member 129 used as a trigger lever member, as FIG.17 (B) shows. A concave portion 120B is formed in a portion of the first slide member 120 facing the roller 130, and a portion of the concave portion 120B on the retreat side of the first slide member 120 is an inclined surface 120C.

  As shown in FIG. 17B, the automatic closing device 32 is provided with a first electric switch 135, and the first electric switch 135 attached to the machine casing 110 is a spring. And a swingable actuator 136 biased in a direction protruding from the head. In addition, a protrusion member 137 is attached to the first slide member 120 at a portion opposite to the recess 120 </ b> B, and the actuator 136 is in contact with the protrusion member 137.

  A connecting member 138 having a connecting portion 138A is attached to the first slide member 120. The other end portion of the third control wire 113 is connected to the connecting portion 138A, and the end portion of the second control wire 112 is connected to the upper portion of the raising / lowering member 141. (See also FIG. 15).

  As shown in FIG. 17B, the automatic closing device 32 includes a spring 131 for applying a turning force in the K direction about the central axis 129A to the bending lever member 129, and a second control device. A spring 132 is provided for returning the raising / lowering member 141 to an upright state when the raising / lowering member 141 to which the end of the wire 112 is connected falls to the solenoid 126 side around the central axis 142A; The normal roller 130 provided at the other end of the bending lever member 129 by the spring force of the spring 131 causes the concave portion of the first slide member 120 to be recessed as shown in FIG. It fits into 120B.

  Further, when the roller 130 is fitted into the recess 120B, the advancement of the first slide member 120 by the spring 121 described above is stopped. Thus, when the forward movement is stopped by the roller 130 fitted in the recess 120B, the position of the front end of the first slide member 120 is the three positions H, I, J shown in FIGS. 16 and 17B. Of these, the H position.

  The second control wire 112, which has an end connected to the raising / lowering member 141 and is inserted into the outer cable 115, extends to the operating device 30 shown in FIG. 1 and protrudes from the outer cable 115. A manual operation member such as a lever member disposed in the operation device 30 is connected to the end of the second control wire 112. Further, a third control wire 113 having an end connected to the first slide member 120 and inserted into the outer cable 116 also extends to the operating device 30 and protrudes from the outer cable 116. A manual operation member such as a lever member disposed in the operation device 30 is also connected to the end of the control wire 113.

  As can be understood from the above description, the automatic closing device 32 includes the first slide member 120 having the recess 120B, the bending lever member 129 having the solenoid 126 and the roller 130, the first electric switch 135, and the like. The first slide member 120, which is a reciprocating member that is linearly reciprocable with respect to the machine casing 110, mechanically turns on the brake device 19 as described later. It is a switching member that operates to switch off.

  Next, the intermediate device 200 shown in FIG. 17A will be described.

  As shown in FIG. 17A, the above-described machine casing 110 of the composite apparatus 100 includes a first rotation member 201 that is rotatable about a central axis 201A and a rotation that is centered on a central axis 202A. A movable second rotating member 202 is provided, and these rotating members 201 and 202 rotate in the horizontal direction. Further, the lower ends of the central shafts 201A and 202A are supported by the bottom portion 110F of the machine casing 110, and the upper ends of the central shafts 201A and 202A are supported by a bracket 203 coupled to the machine casing 110 as shown in FIG. Has been. As shown in FIG. 17A, the first rotating member 201 is provided with a fan-shaped portion 201B having a fan shape centered on the central axis 201A in the horizontal direction. Of the wire 111, the portion inserted into the machine casing 110 is in a state of being detachably wound around the outer peripheral surface of the fan-shaped portion 201 </ b> B, and the end of the first control wire 111. Are coupled to the first rotating member 201 by a coupler 204.

  And in this embodiment, as FIG. 17 (A) shows, the extending | stretching direction of the 1st control wire 111 extended to the outer side of the machine frame 110 from the fan-shaped part 201B is the fan-shaped part 201B. It matches or substantially matches the tangential direction.

  The first rotating member 201 is horizontally formed with a cam portion 201C having a circumferential length around the central axis 201A at the lower side of the fan-shaped portion 201B. The outer peripheral surface of the cam portion 201C, which has a longer projecting length in the radial direction from the central axis 201A than 201B, is an arcuate surface centered on the central axis 201A. A coil portion of a torsion coil spring 205 is wound around the outer periphery of the central shaft 201A, and one end of the spring 205 is locked to a locking member 206 attached to the machine frame 110, and the other end is locked. The end portion is locked to a convex portion 201 </ b> E provided on the first rotating member 201. For this reason, the first rotating member 201 is always urged to rotate in the B direction in FIG. 17A about the central axis 201A by the spring 205, and the first rotating member 201 in this B direction is urged. The rotation limit is defined by a stop member 207 attached to the machine casing 110 and abutting one side surface of the cam portion 201C.

  The second rotating member 202 is provided with a fan-shaped portion 202B having a central axis 202A as a center, and the fan-shaped portion 202B is a part of a protruding portion 202C that is horizontally formed in a protruding state from the central shaft 202A. The projection 208 is provided on the upper surface of the projection 202C. The convex portion 208 in the present embodiment is a roller that is rotatable by a roller bearing or the like. Then, the side surface 201 </ b> D of the cam portion 201 </ b> C of the first rotating member 201 is in contact with the convex portion 208. Therefore, in other words, the side surface 201D is opposite to the side surface 201D in contact with the stop member 207 in the cam portion 201C of the first rotation member 201. The protrusion 208 is a contact portion that is in contact with the first rotation member 201 of the second rotation member 202. ing.

  As shown in FIG. 16, holes 110G and 110H are formed in the two rising portions 110B and 110C of the machine casing 110 of the composite apparatus 100, and two rising portions are formed in these holes 110G and 110H. A plate-like second slide member 210 shown in FIG. 17A having a length extending over 110B and 110C is slidably inserted. The second slide member 210 is a reciprocating member that can linearly reciprocate in the same direction as the first slide member 120. In addition, an opening hole 210A is formed in the second slide member 210, and a protrusion 211 is inserted into the opening hole 210A and provided on the lower surface of the protruding portion 202C of the second rotating member 202. The convex portion 211 in the present embodiment is a rotatable roller such as a roller bearing.

  Further, a biasing force in the forward direction is applied to the second slide member 210 by the spring force of the spring 212 installed between the machine casing 110 and the second slide member 210. This is the same direction as the forward direction of one slide member 120. The forward limit of the second slide member 210 is such that the convex portion 211 of the second rotating member 202 abuts on the end of the opening hole 210 </ b> A, and the convex portion 208 of the second rotating member 202 is the first rotating member 201. This is defined by abutting on the side surface 201D of the cam portion 201C and the side surface of the cam portion 201C opposite to the side surface 201D abutting on the stop member 207.

  As shown in FIG. 15, the second slide member 210 which is a constituent member of the intermediate device 200 is at a height position above the first slide member 120 which is a constituent member of the automatic closing device 32. Is arranged in the machine casing 110. Also, as shown in FIG. 17A, the second slide member 210 has a first and a first relative to the connecting portion 138A of the connecting member 138 provided on the first slide member 120. On the forward side of the two slide members 120, 210, a step surface 210 </ b> B formed to face the slide members 120, 210 in the forward / backward direction is provided. As shown in FIG. 15, the connecting portion 138A has a length extending upward, and the connecting portion 138A and the step surface 210B are in the normal state shown in FIGS. The first and second slide members 120 and 210 face each other with a large gap in the moving direction. Then, as shown in FIGS. 18A and 18B and FIGS. 19A and 19B, when the first slide member 120 moves forward, the connecting portion 138A abuts on the step surface 210B or opens a slight gap. When the second slide member 210 moves backward as shown in FIG. 20 (A), the first slide member as shown in FIG. 20 (B) due to the pressing action of the connecting portion 138A by the step surface 210B. 120 also moves backwards.

  As can be seen from the above description, the intermediate device 200 serving as a connecting device for directly connecting the first control wire 111 and the automatic closing device 32 is the first rotating member 201 or the second time. The moving member 202, the second slide member 210, and the like, and the first rotating member 201 of the first rotating member 201 and the second rotating member 202 is a first control that is a string-like member. The second rotating member 202 is a member on the side of the first slide member 120 that is the above-described switching member of the automatic closing device 32. The first rotating member 201 is a rotating contact member because the side surface 201D is in contact with the convex portion 208 of the second rotating member 202. The rotation member 202 is also a rotation-type contacted member with which the contact member is in contact.

  As described above, the second rotating member 202 is provided with the fan-shaped portion 202B having the center axis 202A as the center, and as shown in FIG. A large number of teeth 202D are formed on the outer peripheral surface. These tooth portions 202D mesh with a pinion gear 300B coupled to the rotatable central shaft 300A of the delay device 300 described above. The delay device 300 is a rotary damper, and a plurality of blades connected to the center shaft 300A via a one-way clutch are attached to the inside of the delay device 300, and the second rotating member 202 is connected to the center shaft. When the pinion gear 300B and the central shaft 300A rotate in the D direction by rotating in the F direction around the 202A, the viscosity in which each blade is filled in the delay device 300 due to the connecting action of the one-way clutch. Rotates in the fluid. For this reason, the second rotating member 202 is rotated in the F direction at a low speed by the resistance force of the viscous fluid. On the other hand, when the second rotating member 202 rotates in the G direction opposite to the F direction, and the pinion gear 300B and the central shaft 300A rotate in the E direction, the rotation in this direction causes the cutting action of the one-way clutch. Is not transmitted to each blade. For this reason, the 2nd rotation member 202 can be rotated to G direction at high speed.

  The delay device 300 that operates as described above is disposed inside the machine frame 110 of the composite device 100 by being attached to the lower surface of the bracket 203 described above, as shown in FIGS. 15 and 16. Has been.

  Further, as shown in FIG. 17A, a second electric switch 220 is attached to the machine casing 110, and the second electric switch 220 is attached in a direction protruding from the second electric switch 220 by a spring. A swingable actuator 221 is provided. The first rotating member 201 is provided with a protruding member 222, and the actuator 221 is in contact with the protruding member 222.

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

  In the 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 stopped at the fully open position or in the middle of the opening and closing movement direction, the sensor from the sensor that has detected this disaster The automatic closing shown in FIG. 17B by the control of an electric circuit such as a relay circuit (not shown) to which a signal is input or a control device by a computer (this control device may also serve as the control device 26 in FIG. 1). Since the solenoid 126 of the device 32 is energized and the solenoid 126 is energized, 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 having one end abutting against the above-described tip member 140 is opposite to the K direction in FIG. 17B around the central axis 129A against the spring force of the spring 131. It will rotate in the L direction. The state at this time is shown in FIG. When the bending lever member 129 rotates in the L direction about the central axis 129A, the roller 130 of the bending lever member 129 escapes from the concave portion 120B of the first slide member 120, so that the first slide member 120 has the spring force of the spring 121. The forward movement is stopped when the front end of the connecting member 138 provided on the first slide member 120 abuts on the above-described rising portion 110 </ b> B of the machine frame 110. That is, the connecting member 138 of the present embodiment is also an advance limit defining portion in the first slide member 120 for defining the advance limit of the first slide member 120.

  Further, the position of the front end of the first slide member 120 at this time is as shown in FIG. 18B among the three positions H, I, and J shown in FIG. 16 and FIG. And the I position which is the foremost position.

  Further, when the first slide member 120 advances as described above, the actuator 136 of the first electric switch 135 is disengaged from the protruding member 137 attached to the first slide member 120. In response to the generated signal, the control device described above stops energization of 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 spring 131. Rotate in the direction. Since the first slide member 120 at this time has advanced to the movement limit where the front end of the first slide member 120 reaches the I position, the roller 130 of the bending lever member 129 is shown in FIG. As described above, it hits the aforementioned inclined surface 120 </ b> C of the first slide member 120. For this reason, the rotation of the bending lever member 129 about the central axis 129A in the K direction stops halfway.

  When the first slide member 120 moves forward as described above, the operation member 122 of FIG. 3 provided at the front end of the first slide member 120 is connected to the lever member 31 of the switch 13 via the operated member 123. The first portion 31A is pressed in the direction A in FIG. For this reason, as described above, the first portion 31A swings in the A direction with the second bent portion 31D of the lever member 31 as a fulcrum, so that the brake shaft 21 and the second brake of the brake device 19 of the opening / closing machine 13 are provided. The member 22 slides in the A ′ direction, which is the same direction as the A direction, so that the brake device 19 that has been turned on until then is turned off. For this reason, the shutter curtain 1 that has been stopped halfway in the opening / closing movement direction is directed downward while rotating the take-up shaft 11 by the weight of the seat plate 1B and the like below the take-up shaft 11. The above-described drive shaft 14 of the opening / closing machine 13 is also freely rotated via the drive force transmission means 12 and the shutter curtain 1 is fully closed, so that a disaster prevention zone is formed by the shutter curtain 1. Will be.

  Further, when a person discovers that a disaster such as a fire has occurred, this person is arranged in the operating device 30 shown in FIG. 1 and is connected to the end of the second control wire 112 described above. The second control wire 112 is pulled by a manual operation member such as a lever member. Since the other end of the second control wire 112 is connected to the above-described raising member 141 as described with reference to FIG. 17B, the second control wire 112 is pulled. The tilting member 141 is tilted and rotated around the central shaft 142A toward the solenoid 126, and the tip member 140 and the plunger 127 are retracted by the pressing action of the tilting member 141. As a result, even before the solenoid 126 is energized and excited, the bending lever member 129 is moved through the tip member 140 by the pressing force from the raising / lowering member 141 as when the solenoid 126 is energized and excited. , The roller 130 of the bending lever member 129 escapes from the recess 120B of the first slide member 120, and the first slide member 120 moves to the spring 121. It will move forward with spring force.

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

  As described above, when the first slide member 120 moves to the forward limit, the connecting portion 138A provided on the connecting member 138 of the first slide member 120 is shown in FIGS. 18 (A) and 19 (A). As shown in FIG. 6, the second slide member 210 abuts on the step surface 210B or approaches the step surface 210B. For this reason, even if the first slide member 120 moves to the forward limit shown in FIGS. 18B and 19B, the second slide member 210 is shown in FIGS. 18A and 19A. As shown, it remains stopped at the position shown in FIG. Therefore, the second slide member 210 is configured as a constituent member, and the intermediate device 200 shown in FIGS. 18A and 19A maintains the same state as in FIG. 17A. To do.

  As described above, when the shutter curtain 1 reaches the fully closed position and a disaster such as a fire is resolved, the shutter curtain 1 is disposed on the operation device 30 and connected to the end of the third control wire 113 described above. The third control wire 113 is pulled by a manual operation member such as a lever member. Accordingly, since the third control wire 113 is connected to the connecting portion 138A of the connecting member 138 of the first slide member 120, the first slide member 120 moves backward against the spring force of the spring 121. become. For this reason, the first slide member 120 returns from the position shown in FIG. 19B to the initial position where the front end of the first slide member 120 is at the H position in FIGS. 16 and 17B. It will be. Further, when the first slide member 120 returns to this initial position, the bending lever member 129 rotates about the central axis 129A in the K direction of FIG. The roller 130 of the member 129 is fitted into the recess 120 </ b> B of the first slide member 120, so that the first slide member 120 on which the spring force of the spring 121 is acting acts on the front end of the first slide member 120. Reaches the H position and stops. Thereby, the automatic closing device 32 returns to the initial state before the occurrence of a disaster such as a fire.

  When the third control wire 113 is pulled by a manual operation member such as a lever member as described above, the connecting portion 138A of the connecting member 138 comes into contact with the bracket 203 shown in FIG. As a result, when the third control wire 113 is pulled with an excessive operating force by a manual operation member such as a lever member, the bracket indicates that the excessive operating force acts on the connecting member 138 and the first slide member 120. You may make it prevent by 203.

  When the first slide member 120 returns to the initial position as described above, the brake shaft 21 and the second brake member 22 of the brake device 19 of the opening / closing machine 13 are moved in the direction opposite to the A ′ direction by the spring 23 described above in FIG. In order to move, the brake device 19 returns from off 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.

  As described above, the occurrence of a disaster such as a fire is detected by the above-described sensor, or the person who discovers the occurrence of a disaster such as a fire pulls the second control wire 112, so that the shutter curtain 1 becomes a disaster prevention section. When the shutter device moves to the fully closed position to form the shutter, the shutter device according to the present embodiment is the above-described shutter device for disaster prevention. On the other hand, as described above, when the opening / closing movement and stoppage of the shutter curtain 1 are performed by operating the “open”, “closed”, and “stop” buttons of the operation device 30, the present embodiment is used. This is when the shutter device is the aforementioned management shutter device.

  When the shutter device according to the present embodiment is a shutter device for disaster prevention and the shutter curtain 1 is closing and moving, in other words, the automatic closing device 32 is in the state shown in FIG. 19A is in the state shown in FIG. 19A, and when the shutter curtain 1 is closing and moving, the obstacle 34 shown in FIG. 1 exists below the shutter curtain 1 in the closing movement direction. When the shutter curtain 1 is in the middle of the closing movement, the curtain sub-portion 71B disposed at the front end of the shutter curtain 1 on the closing side, in other words, the lower portion of the seat plate 1B of the shutter curtain 1 4 that forms FIG. 4 comes into contact with the obstacle 34, and the lowering of the movable portion 70B stops.

  Even if the lowering of the movable portion 70B stops, the curtain main portion 71A configured by the curtain main body 1A and the fixed portion 70A of FIG. 4 of the seat plate 1B is lowered from the state of FIG. As a result of the relative rise of the curtain sub-part 71B (movable part 70B) with respect to the curtain main part 71A generated by this lowering, as shown in FIG. It swings upward about the fulcrum shaft 80. Accordingly, the lock member 50 constituting the mechanical coupling device 55 described above is rotated in the N direction of FIG. 8 by the pressing member 54 provided on the swinging member 81 to be in the state of FIG. The tooth portion 53 of the lock member 50 engages with the tooth portion 35 </ b> A of the rotating member 35.

  Accordingly, the rotating member 35 and the take-up reel 37 that have been rotated in the S direction in FIG. 8 when the shutter curtain 1 is closed and moved cannot be rotated in this S direction. The reel 37 becomes non-rotatable, and the shutter curtain 1 and the lock wire 36 fed out from the take-up reel 37 are coupled by the mechanical coupling device 55 having the rotation member 35 and the lock member 50 as components. become. Therefore, a downward tension force due to the weight of the shutter curtain 1 excluding the movable portion 70B, that is, the weight of the curtain main portion 71A, acts on the lock wire 36.

  After the shutter curtain 1 that is closing and moving is in contact with the obstacle 34 as described above, downward tension due to the weight of the shutter curtain 1 excluding the movable portion 70B acts on the lock wire 36. When the obstacle 34 is dented and deformed, the lock wire 36 coupled to the shutter curtain 1 by the mechanical coupling device 55 is pulled downward by the amount of the dented deformation.

  Further, even if the obstacle 34 is a hard object that does not dent or deform hardly, when the lock member 50 is rotated in the N direction of FIG. 8 by the pressing member 54 of the swing member 81, it is shown in FIG. As described above, of the first tooth portion 53A, the second tooth portion 53B, and the third tooth portion 53C provided as the tooth portion 53 on the lock member 50, the first tooth portion 53A is first the tooth portion of the rotating member 35. The second tooth portion 53B and the third tooth portion 53C are then engaged with the tooth portion 35A of the rotating member 35. Of these engagements, at least the engagement of the first tooth portion 53A with the tooth portion 35A is locked to the lock member 50 in the longitudinal direction of the lock member 50 as shown in FIG. Of the first lock member side contact portion 59A and the second lock member side contact portion 59B provided as the two member side contact portions 59, from the shaft 56 that is the rotation center axis of the lock member 50 The first lock member-side contact portion 59A located at a distant place is pushed up by the pressing member 54 serving as the shutter curtain-side contact portion 58.

  The interval between the first teeth 53A, the second teeth 53B, and the third teeth 53C is the same as the interval (tooth pitch) between the teeth 35A formed on the rotating member 35 at regular intervals. Alternatively, they are substantially the same dimensions, or are dimensions that are an integral multiple of two or more or a dimension that is an integral multiple of the spacing between the tooth portions 35A. For this reason, when the first tooth portion 53A engages with the tooth portion 35A, the second tooth portion 53B and the third tooth portion 53C also engage with the tooth portion 35A.

  When the first lock member side contact portion 59A is pushed up by the pressing member 54 as described above, next, as shown in FIG. 9, the second lock member side contact portion 59B of the lock member 50 is used. Comes into contact with the pressing member 54, and the second lock member side contact portion 59B is pushed up. That is, the push-up member 54 pushes up the lock member side contact portion 59 of the lock member 50 from the first lock member side contact portion 59A to the second lock member side contact portion 59B. This push will be done.

  For this reason, the rotation of the lock member 50 in the N direction shown in FIG. 8 is continued in two stages, whereby the first tooth portion 53A of the lock member 50 is rotated by the rotation member 35. The second tooth portion 53B and the third tooth portion 53C continue to engage with the tooth portion 35A of the rotating member 35 even when the engagement with the tooth portion 35A of the second member 53A is disengaged. The tooth portion 53C slightly rotates the rotating member 35 in the T direction in FIG. The rotation in the T direction is a rotation in a direction in which the take-up reel 37 winds the lock wire 36 and is a direction in which the lock wire 36 is pulled downward.

  In this way, the second tooth portion 53B and the third tooth portion 53C rotate the rotation member 35 in the T direction because the distance from the shaft 56 that is the rotation center of the lock member 50 is the first lock. Since the second lock member side contact portion 59B shorter than the member side contact portion 59A is pushed up by the pressing member 54, the second tooth portion 53B and the third tooth portion 53C move in the T direction of the rotating member 35. The amount of rotation increases. Therefore, when the obstacle 34 is indented and deformed even if the amount of relative rise of the curtain sub-portion 71B with respect to the curtain main portion 71A when the shutter curtain 1 being closed is in contact with the obstacle 34 is constant. In the same manner as described above, it is possible to secure a sufficient amount of downward pulling of the locking wire 36.

  For this reason, even when the obstacle 34 is a hard thing which does not dent-deform and hardly deforms, when the obstacle 34 dents and deforms the locking wire 36 coupled to the shutter curtain 1 by the mechanical coupling device 55. Can be pulled down sufficiently.

  In the present embodiment, the number of the tooth portions 53 provided on the lock member 50 is three, but the number may be four or more.

  Further, when the shutter curtain 1 comes into contact with the obstacle 34, the first lock member side contact portion 59A of the lock member 50 is pushed up by the pressing member 54 that is the shutter curtain side contact portion 58 as described above, Accordingly, the first tooth portion 53A of the lock member 50 that rotates in the N direction around the shaft 56 in FIG. 8 attempts to engage with the tooth portion 35A of the rotation member 35. Due to the rotation timing of the rotating member 35, the tip of the first tooth portion 53 </ b> A and the tip of the tooth portion 35 </ b> A come into contact with each other, whereby the lock member 50 and the rotating member 35 are brought into contact with each other. 50 and the rotating member 35 may be in a deadlock state.

  However, in the present embodiment, as described with reference to FIG. 13, the lock member 50 and the shaft 56 serving as the rotation center axis of the lock member 50 are rotated by the long hole 67 formed in the case 33 described above. Since it is movable toward and away from the member 35 and is always biased in the X direction on the rotating member 35 side by the elastic biasing force of the torsion coil spring 57 that is an elastic member, When the deadlock state occurs, the lock member 50 and the shaft 56 move slightly in the direction of retreating from the rotation member 35 due to the reaction force from the rotation member 35, and the deadlock state is eliminated, and the torsion coil spring The first urging portion 53 </ b> A of the locking member 50 is engaged with the tooth portion 35 </ b> A of the rotating member 35 that continues to rotate. It made.

  For this reason, according to the present embodiment, the tip of the first tooth portion 53A of the lock member 50 and the tip of the tooth portion 35A of the rotating member 35 come into contact with each other, and the lock member 50 and the rotating member 35 are in a deadlock state. This can be avoided, and an excessive load generated on the lock member 50 or the like when this deadlock state occurs can be eliminated.

  Further, in the present embodiment, since the first lock member side contact portion 59A provided on the lock member 50 is an elastic portion by the leaf spring 60, the above-described deadlock state occurs. The elastic member is elastically deformed by the reaction force from the rotating member 35, so that the lock member 50 rotates slightly in the M direction in FIG. This can also eliminate the deadlock state.

  As described above, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 and the lock wire 36 is pulled downward, the tension force of the lock wire 36 is transmitted via the connecting member 94 shown in FIG. It acts on the first control wire 111 and the first control wire 111 is also pulled.

  When the first control wire 111 is pulled, the other end of the first control wire 111 is a constituent member of the intermediate device 200 in the state of FIG. 19A as described above. Since the first rotation member 201 is connected to the first rotation member 201, the first rotation member 201 rotates in the direction C in FIG. 17A, and this rotation causes the cam portion 201C of the first rotation member 201 to rotate. The second rotating member 202 in which the convex portion 208 is in contact with the side surface 201D rotates in the G direction in FIG. As a result, the second slide member 210 in which the convex portion 211 of the second rotating member 202 is inserted into the opening hole 210A, as shown in FIG. Retreats against the spring force of the spring 212.

  Accordingly, the second slide member 210 presses the connecting portion 138A of the connecting member 138 of the first slide member 120 by the step surface 210B. For this reason, the first slide member 120 also moves backward, The aforementioned brake device 19 is switched from off to on. Therefore, the shutter curtain 1 that is in contact with the obstacle 34 in FIG. 1 during the closing movement stops the closing movement. The state of the automatic closing device 32 at this time is shown in FIG. 20B, and the position of the front end of the first slide member 120 at this time is the J position shown in FIGS.

  In addition, as described above, when the first control wire 111 is pulled, the stepped surface 210B of the second slide member 210 that moves backward presses the connecting portion 138A of the connecting member 138 of the first slide member 120, thereby Since the first slide member 120 moves backward, the step surface 210B is a pressing portion of the second slide member 210 for pressing the first slide member 120, and the connecting portion 138A is pressed from the second slide member 210. It is a pressed portion of the first slide member 120 for receiving pressure.

  Further, in the above operation, when the second rotating member 202 is rotated in the G direction in FIG. 17A as described above, the pinion gear 300B of the delay device 300 rotates in the E direction. When the pinion gear 300B rotates, the one-way clutch disengaging function of the delay device 300 functions as described above. Therefore, the pinion gear 300B rotates at high speed in the E direction, and the second rotating member 202 also moves in the G direction. It can rotate at high speed. In other words, no delay action occurs in the delay device 300 at this time.

  Further, when the first control wire 111 is pulled as described above, the first rotating member 201 rotates in the C direction in FIG. 17A and the second rotating member 202 rotates in the G direction. Since the movements performed by the first rotation member 201 and the second rotation member 202 are rotation movements, even if the length of the first control wire 111 to be pulled is long, The entire rotation amount of the first rotation member 201 is not transmitted to the second rotation member 202.

  That is, in the present embodiment, as described above, the three teeth portions 53A, 53B, and 53C are provided in the lock member 50 in consideration of the case where the obstacle 34 is a hard member that does not dent and is not deformed. Even if the length by which the first control wire 111 is pulled is increased by the action of the tooth portions 53A, 53B, and 53C, the first rotation of the total rotation amount of the first rotation member 201 Only when the side surface 201D of the cam portion 201C of the member 201 is in contact with the convex portion 208 of the second rotating member 202, the rotation of the first rotating member 201 in the C direction is changed to the second rotating member 202. This is transmitted as the rotation of the second rotating member 202 in the G direction. Even if the first rotating member 201 rotates in the C direction after the side surface 201D of the cam portion 201C of the first rotating member 201 does not contact the convex portion 208 of the second rotating member 202, In other words, the rotation is an idling rotation, and the second rotating member 202 is stopped when the first rotating member 201 performs the idling rotation.

  For this reason, even if the length by which the first control wire 111 is pulled is long and the rotation amount of the first rotation member 201 is large, the distance by which the first slide member 120 moves backward is not long, As a result, when the shutter curtain 1 that is being moved is in contact with the obstacle 34, the position at which the first slide member 120 moves backward is indicated by the front end of the first slide member 120 as shown in FIG. As shown, among the three positions I, J, and H shown in FIGS. 16 and 17B, the position reaches the J position. This J position is a position in front of the H position, which is the initial position, and is a position where the brake device 19 can be mechanically switched from off to on by the first slide member 120. FIG. ), The roller 130 of the bending lever member 129 is in a position where the roller 130 is in a state of being escaped from the recess 120B of the first slide member 120, as in FIG. 19B. The fact that the roller 130 is kept in the state where it has escaped from the recess 120B is shown in FIG. 20B, which shows the time when the shutter curtain 1 that is being closed is in contact with the obstacle 34. ing.

  As can be understood from the above description, after the shutter curtain 1 is closed and started to move due to the occurrence of a fire or the like, the shutter device according to the present embodiment is installed due to a fire or other reasons. Even if the building has a power failure, when the shutter curtain 1 is in contact with the obstacle 34 during the closing movement, the first slide member 120 of the automatic closing device 32 switches the brake device 19 of the switch 13 from off to on. Thus, the shutter curtain 1 can be mechanically stopped without using electricity.

  As described above, after the brake device 19 is switched from OFF to ON, and the obstacle curtain 34 is removed after the closing shutter curtain 1 stops, the curtain sub-portion 71B of the shutter curtain 1 is moved. Since it moves down, the mechanical coupling device 55 releases the coupling between the shutter curtain 1 and the locking wire 36. As a result, the tension force acting on the locking wire 36 and the first control wire 111 disappears, so the first rotating member 201 rotates in the B direction in FIG. The second rotation member 202 rotates in the direction F in FIG. 17A when the second slide member 210 moves forward with the spring 212, and the second slide member 210 moves forward, thereby automatically closing the device. The first slide member 120 of 32 moves forward by the spring force of the spring 121 so that the position of the front end shifts from the J position in FIG. 20B to the I position shown in FIGS. 16 and 17B. For this reason, the brake device 19 of the opening / closing machine 13 is mechanically switched again from on to off, and the shutter curtain 1 is closed and restarted.

  At this time, the second rotation member 202 rotates in the F direction in FIG. 17A, whereby the pinion gear 300B of the delay device 300 rotates in the D direction, and the pinion gear 300B moves in the D direction. Regarding the rotation, as described above, a resistance force due to the viscous fluid is generated in the delay device 300 which is a rotary damper. For this reason, the position of the front end of the first slide member 120 shifts from the J position in FIG. 20B to the I position in FIGS. 16 and 17B, and this shift causes the brake device 19 of the switch 13 to move. The switching from ON to OFF is not performed instantaneously due to the delay action of the delay device 300, and this switching time is delayed. Therefore, when the shutter curtain 1 is closed and restarted by the removal of the obstacle 34, the movement of the obstacle 34 is started with a time delay from the removal of the obstacle 34. It can be carried out.

  In the above, the distance by which the first slide member 120 moves backward when the shutter curtain 1 that is being closed is in contact with the obstacle 34 is such that the front end of the first slide member 120 is located behind the J position. When the distance is long, the roller 130 of the bending lever member 129 is fitted into the concave portion 120 </ b> B of the first slide member 120. When such a situation occurs, even if the obstacle 34 with which the shutter curtain 1 that is moving in contact is removed is removed, the first slide member 120 is moved to the brake device 19 by the stopper action of the roller 130. Cannot be advanced to reach the I position where it can be switched from on to off.

  That is, the operable range of the first slide member 120 of the automatic closing device 32 that is a switching member that switches the brake device 19 on and off includes a range in which the brake device 19 cannot be switched from on to off. Will be.

  However, according to the present embodiment, as is apparent from the above, the first rotating member 201 serving as the contact member on the first control wire 111 side and the first slide member 120 of the automatic closing device 32 are provided. Since the second rotating member 202 that is the contact member on the side is a member that rotates about the central axes 201A and 202A, of the total amount of rotation of the first rotating member 201, Only a part of the rotation amount is transmitted to the second rotation member 202, and for this reason, the distance by which the first slide member 120 moves backward when the shutter curtain 1 in the closed movement comes into contact with the obstacle 34. This is not a long distance in which the front end of the first slide member 120 is located on the rear side of the J position. For this reason, the first slide member 120 can be stopped at a retreat distance in which the position of the front end is the J position. Thus, after the obstacle 34 with which the shutter curtain 1 moving in contact is removed is removed, The brake device 19 can be switched from on to off.

  For this reason, according to the present embodiment, the first rotation member 201, the second rotation member 202, and the like constitute the operation range limiting means 230 that does not operate the first slide member 120 to the above-described non-switchable range. It will be.

  In this embodiment, the lock member 50 that is a constituent member of the mechanical coupling device 55 shown in FIGS. 8 and 9 is provided with the tooth portion 53 of the lock member 50 as described in FIG. Since the clearance adjustment means 66 for adjusting the magnitude | size of the clearance gap 65 between the front-end | tip of the rotation member 35 and the front-end | tip of the tooth | gear part 35A of the rotation member 35 is provided, the shutter curtain 1 does not contact | abut an obstruction normally At times, the size of the gap 65 can be set to an appropriate value. For this reason, a problem that occurs when the size of the gap 65 is larger than the appropriate value, that is, when the shutter curtain 1 that is being moved in close contact with the obstacle 34, the tooth portion of the lock member 50 immediately. Since 53 does not engage with the tooth 35A of the rotating member 35, it is possible to solve the problem that it becomes difficult to stop the shutter curtain 1 instantaneously because the obstacle sensing is delayed. Problems that occur when the size of 65 is smaller than the appropriate value, that is, when the shutter curtain 1 is not in contact with the obstacle 34, for example, when the rotating member 35 or the lock member 50 vibrates, etc. The problem that the part 53 contacts or engages with the tooth part 35A can be solved.

  The above description has been made when the shutter device according to the present embodiment is the above-described shutter device for disaster prevention. When this shutter device is the aforementioned management shutter device, that is, when the shutter curtain 1 is closed and moved by the operation of the aforementioned operation device 30, the shutter curtain 1 contacts the obstacle 34. Sometimes, the tension force and the pulling force act on the first control wire 111, so the first rotating member 201 of the intermediate device 200 rotates in the direction C in FIG. The second slide member 210 is retracted via the second rotating member 202, but the first slide member 120 at this time is retracted to the retreat limit where the front end is at the H position. 17 (A), there is a large gap between the step surface 210B of the second slide member 210 and the connecting portion 138A of the connecting member 138 of the first slide member 120. Even second slide member 210 is retracted, the retraction does not affect the first slide member 120.

  In other words, when the shutter device according to the present embodiment is a management shutter device, the first slide member 120 becomes a constituent member even if the shutter curtain 1 that is being closed is in contact with the obstacle 34. The automatic closing device 32 is not activated, and the automatic closing device 32 maintains the state shown in FIG.

  In the present embodiment, when the shutter device is a management shutter device, the shutter curtain 1 that is closing and moving is in contact with the obstacle, and the intermediate force due to the tension or pulling force of the first control wire 111 When the first rotating member 201 of the device 200 rotates in the C direction, the actuator 221 of the second electric switch 220 described above performs an operation to disengage from the protruding member 222 of the first rotating member 201. The control device 26 in FIG. 1 electrically drives and controls the electric motor device 18 and the brake device 19 of the opening / closing machine 13 with a signal from the switch 220, so that the shutter curtain 1 is predetermined from the position in contact with the obstacle. Inverts and rises to open and move to a height position. That is, after the shutter curtain 1 of the management shutter device is brought into contact with the obstacle, the shutter curtain 1 opens and moves to a height position away from the obstacle and stops.

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

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is an opening / closing body 1A Curtain main body which is an opening / closing body main body 1B Seat plate which is an end member 13 Opening / closing machine 18 Electric motor device 19 Brake device 32 Automatic closing device 33 Case 34 Obstacle 35 It is connected with the take-up reel Rotating member 35B Inserting portion 36 Locking wire 37 String reel Winding reel 39 Spiral spring and spring spring 39A Return spring inner end 39B Return spring outer end loop Part 41 Shaft 41A inserted into the center of the return spring 41A Split groove 43 Closure member 43C, which is a member connected to the take-up reel 43C Insertion part 48 Rotary plate 48A hole 55 Mechanical coupling device 85 Case Body 85H Screw hole which is a hole of the case 101 Pin-shaped member and connecting member Tsu and has bolt 102 spring force adjustment means 120 on the brake device, the first slide member is a slide member for switching off

Claims (9)

When the opening / closing body that can be opened and closed is mechanically coupled to the string-like member when the opening / closing body that is being closed is in contact with an obstacle, the opening / closing body is connected to the string-like member. A mechanical coupling device for applying a tension force due to its own weight, a take-up reel for unwinding the string-like member when the opening-closing body is opened, and unwinding the string-like member when the opening-closing body is opened, and A return spring force is accumulated during the closing movement of the opening / closing body, and a return spring for winding the string-like member around the take-up reel during the opening movement of the opening / closing body is arranged by the accumulated return spring force. In the opening / closing body stop device for the opening / closing device being operated,
Comprising spring force adjusting means for adjusting the magnitude of the spring force of the return spring ;
The opening / closing body includes an opening / closing body main body and an end member disposed at an end of the opening / closing body on a closing side of the opening / closing body, and the take-up reel and the return spring are disposed on the end member. And the operation part to be operated of the spring force adjusting means is arranged in parallel in the thickness direction of the opening / closing body, and the operation part is connected to the take-up reel. An opening / closing body stopping device for an opening / closing device, which is disposed between the opening / closing body main body . 2. The opening / closing body stopping device for an opening / closing device according to claim 1 , wherein the return spring is a spiral spring, and the spring force adjusting means has at least one of an inner end portion and an outer end portion of the spiral spring. An opening / closing body stop device for an opening / closing device, characterized in that it is means for rotating the spiral spring in a circumferential direction. 3. The opening / closing body stopping device for an opening / closing device according to claim 2 , wherein a shaft is inserted into a central portion of the spiral spring, the inner end portion is connected to the shaft, and the spring force adjusting means is connected to the shaft. An opening / closing body stop device for an opening / closing device, characterized in that it is a means for rotating. 4. The opening / closing body stop device for an opening / closing device according to claim 3 , wherein the spiral spring is housed in the take-up reel, and the outer end portion is connected to the take-up reel. An opening / closing body stop device for an opening / closing device. 5. The opening / closing body stop device for an opening / closing device according to claim 4 , wherein a split groove is formed in the shaft, and the inner end portion is inserted and locked in the split groove, whereby the inner shaft is connected to the inner shaft. End portions are connected, and a loop portion is formed at the outer end portion, and an insertion portion provided on a member connected to the take-up reel is inserted into the loop portion. An opening / closing body stopping device for an opening / closing device, wherein the outer end portion is connected to the take-up reel. 6. The opening / closing body stop device for an opening / closing apparatus according to claim 4 or 5 , wherein the take-up reel and the spiral spring are housed in a case attached to the opening / closing body, and are out of both ends of the shaft. , At least one end protrudes to the outside of the case, and a rotating plate is coupled to the protruding portion, and the spring force adjusting means connects the rotating plate and the case after rotation about the axis. An opening / closing body stop device for an opening / closing device, characterized in that the opening / closing device has a connecting member for connection. 7. The opening / closing body stopping device for an opening / closing device according to claim 6 , wherein the rotary plate is provided with a plurality of holes formed in a circumferential direction around the shaft, and the connecting member is formed of these holes. An opening / closing body stopping device for an opening / closing device, wherein the opening / closing body stopping device is a pin-like member inserted into one of the holes and a hole provided in the case. 8. The opening / closing body stop device for an opening / closing apparatus according to claim 6 , wherein the mechanical coupling device is housed in the case. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 8 , wherein the brake device for stopping and moving the opening / closing body by turning on and off, and switching the brake device on and off. A sliding member that is freely slidable, and the mechanical coupling device includes the opening and closing body and the string-like member when the opening and closing body that is being closed is in contact with the obstacle. The opening and closing device is characterized in that the tension force for sliding the slide member and turning on the brake device is applied to the string-like member by the weight of the opening and closing body Opening and closing body stop device.

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