JP2015214794A - Opening/closing body stop device of opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing body stop device of an opening/closing device which can stop the closing movement of the opening/closing body even if an obstacle abuts on any point in a width direction of the opening/closing body which is large in a width dimension.SOLUTION: This opening/closing body stop device is a shutter curtain stop device of a shutter device in which a mechanical connection device is arranged in a shutter curtain 1 being an openable/closable and movable opening/closing body, the shutter curtain 1 and a lock wire 36 being a string member are mechanically connected to each other by the mechanical connection device when the shutter curtain 1 abuts on an obstacle 34 during closing movement, and thereby a tensioning force caused by the own weight of the shutter curtain 1 is made act on the lock wire 36. A plurality of mechanical connection devices 55, 555 are arranged at the shutter curtain 1 in a width direction.

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 a management shutter device that opens and closes a shutter curtain that is an opening and closing body of an opening and closing device, a shutter curtain for opening and closing an opening such as an entrance is opened, closed, and stopped by operation of the operating device. In addition, in a shutter device for disaster prevention, a shutter curtain having a disaster prevention function such as smoke prevention is closed and moved when an abnormal situation such as a fire occurs, thereby forming a disaster prevention zone in a structure such as a building. . In such a management shutter device, a shutter device for disaster prevention, and a shutter device for combined use of 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 moves. When the shutter curtain inside comes into contact with this 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 and Patent Document 2 below.

  These shutter curtain stopping devices shown in Patent Document 1 and Patent Document 2 are arranged on a shutter curtain that can be freely opened and closed, and when the shutter curtain that is closing and moving contacts an obstacle, By mechanically coupling the string-like member, a mechanical coupling device for applying a tension force due to the weight of the shutter curtain to the string-like member is provided.

JP 2013-49948 A JP 2013-217192 A

  In the shutter curtain stopping device shown in Patent Literature 1 and Patent Literature 2, the number of mechanical coupling devices arranged on the shutter curtain is one.

  By the way, the shutter curtain has a width dimension corresponding to an opening such as an entrance and exit partitioned by the shutter curtain when fully closed. Therefore, the shutter curtain is applied to an opening having a large width dimension. The width of the shutter curtain increases. In a shutter curtain with a large width dimension, the range of the shutter curtain with which the obstacle abuts during the closing movement of the shutter curtain increases, so the obstacle abuts at any part in the width direction of the shutter curtain with a large width dimension. However, it is required that the shutter curtain and the string-like member are mechanically coupled by a mechanical coupling device, the tension force due to the weight of the shutter curtain is applied to the string-like member, and the closing movement of the shutter curtain is stopped. .

  SUMMARY OF THE INVENTION An object of the present invention is to provide an opening / closing body stop device for an opening / closing device that can stop the closing movement of the opening / closing body regardless of where the obstacle comes into contact with in the width direction of the opening / closing body having a large width dimension. There is to offer.

  An opening / closing body stop device for an opening / closing apparatus according to the present invention is disposed on an opening / closing body that can be freely opened and closed. In an opening / closing body stop device of an opening / closing device having a mechanical coupling device for causing a tension force due to the weight of the opening / closing body to act on the string-like member by mechanically coupling, the mechanical coupling device includes the opening / closing device. It is provided with two or more in the width direction of the body.

  In this switchgear stop device of the switchgear, a plurality of mechanical coupling devices are provided in the width direction of the switchgear, and for this reason, an obstacle comes into contact with any part in the widthwise direction of the switchgear having a large width dimension. However, the mechanical coupling device can mechanically couple the opening / closing body and the string-like member, and a tension force due to the weight of the shutter curtain acts on the string-like member, thereby closing and moving the opening / closing body. Can be stopped.

  In the present invention described above, the number of mechanical coupling devices provided in the width direction of the opening / closing body may be two, three, or four or more.

  In addition, these mechanical coupling devices include different types of mechanical types that have different structures for mechanically coupling the opening and closing body and the string-like member when the closing and moving opening and closing body abuts against an obstacle. A coupling device may be included, or the same type of structure for mechanically coupling the opening and closing body and the string-like member when the closing and moving opening and closing body contacts the obstacle A mechanical coupling device may be included.

  The string-like member may be provided for each mechanical coupling device, or at least two mechanical coupling devices among a plurality of mechanical coupling devices provided in the width direction of the opening / closing body. About one, the string-like member may be a common member.

  Thus, in order to use one string-like member as a common member for at least two mechanical coupling devices among a plurality of mechanical coupling devices provided in the width direction of the opening / closing body, The string-like member may be provided with a bridging portion having a length extending in the width direction of the opening / closing body and spanning the at least two mechanical coupling devices.

  Each mechanical coupling device according to the present invention can mechanically couple the opening / closing body and the string-like member when the closing / moving opening / closing body abuts against an obstacle. Any structure, form, or the like may be used as long as it can apply a tension force due to its own weight.

  One example of the mechanical coupling device is a rotary member that is rotated by a string-like member when the opening and closing body is opened and closed, and operates when the opening and closing body abuts on an obstacle. And a locking member.

  In another example, the mechanical coupling device includes an operating member that operates when the opening / closing body abuts on the obstacle to place the string-like member in a pinched lock state.

  The opening / closing body stopping device for an opening / closing apparatus according to the present invention is slidable to switch the brake device on and off, and a brake device for stopping and moving the opening / closing body by turning on and off. The mechanical coupling device mechanically couples the opening / closing body and the string-like member when the opening / closing body abuts against an obstacle, A tension force for sliding the slide member on the shape member to turn on the brake device may be applied by the weight of the opening / closing body.

  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, when the string-like member is provided for each of the mechanical coupling devices provided in the width direction of the opening / closing body, the tension member is attached to at least one of the string-like members. When acting, the slide member may be slid to turn on the brake 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.

  The operating device may be a wired type or a wireless type using infrared rays or the like.

  According to the present invention, it is possible to obtain an effect that the closing movement of the opening / closing body can be stopped regardless of where the obstacle comes into contact with in the width direction of the opening / closing body having a large width dimension.

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 first case shown in FIGS. 1, 4, and 5. FIG. 7 is a front view showing the entirety of the first case shown in FIGS. 1, 4 and 5. FIG. 8 is a front view showing a structure housed in the first case shown in FIGS. 6 and 7. 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 front view showing the entire second case shown in FIG. 1. FIG. 15 is a front view showing a structure housed in the second case shown in FIG. FIG. 16 is a view similar to FIG. 15 showing when the shutter curtain in the closing movement comes into contact with an obstacle. FIG. 17 is a front view showing the internal structure of the composite device including the automatic closing device shown in FIGS. FIG. 18 is a plan view showing the internal structure of the composite apparatus shown in FIG. FIGS. 19A and 19B are plan views showing the intermediate device and the automatic closing device, which are devices constituting the composite device, separately. FIGS. 20A and 20B 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. 21A and 21B 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. 22 (A) and 22 (B) are plan views showing the intermediate device and the automatic closing device separately when the shutter curtain that is being closed is in contact with an obstacle. FIG. 23 is a front view showing the entirety of a shutter device serving as an opening / closing device according to another embodiment of the present invention. FIG. 24 is a front view showing a structure housed in one of the two cases shown in FIG. FIG. 25 is a front view showing the entirety of a shutter device serving as an opening / closing device according to still another embodiment of the present invention.

  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 take-up shaft 11 is also shown in FIG. 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 of the switch 13. The 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 in the present embodiment.

  When the shutter curtain 1 reaches the height position of the lintel 16 disposed on the ceiling member 5 as described above, or when the occupant plate 1B has the lintel 16 and the floor 4 as shown in FIG. When the 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 is moved to the winding shaft 11 by the reverse rotation of the winding shaft 11. It is rolled up and moved. When the shutter curtain 1 reaches the fully open position, the 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.

  Therefore, 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. The seat plate 1B includes a fixed portion 70A fixed to the curtain main body 1A and a lower side than the fixed portion 70A. 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. Therefore, the curtain sub-portion 71B is disposed closer to the shutter curtain closing side than the curtain main portion 71A. 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, the fixing 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 part 70B is movable up and down with respect to the part 70A. In the present embodiment, of the inner and outer members 75, 76, the outer member 75 is formed by a pair of components that are arranged to face each other in the thickness direction of the shutter curtain 1. As can be seen from FIG. 4, the lower surfaces of the inner and outer members 75 and 76 forming the fixed portion 70A are openings 78, and the upper end of the rising portion 79 of the movable portion 70B is fixed from the opening 78. It is inserted into the internal space of the part 70A. 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, in other words, on the shutter curtain closing side of the curtain sub-portion 71B with respect to the curtain main portion 71A. A movement limit position 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. Since the curtain sub-part 71B can move up and down with respect to the curtain main part 71A and the movable part 70B can move up and down with respect to the fixed part 70A, as shown in FIG. When the shutter curtain 1 that is moving to be closed is in contact with the obstacle 34 shown in FIG. 1 when it is lifted with respect to the fixed portion 70A, the extending portion 79A of the rising portion 79 of the movable portion 70B is moved by the swing member. By pushing up 81, the swing member 81 swings upward about the fulcrum shaft 80.

  4 and 5, the first case 33 is attached to the fixing portion 70A of the seat plate 1B. The first case 33 is also shown in FIG. The inside of one case 33 is shown in FIGS. As shown in FIG. 8, in the first case 33, the rotating member 35 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. The take-up reel 37 is housed so as to be rotatable about a shaft 41 which is a fixed shaft fixed to the first case 33 as will be described later, and the rotation center shaft is the shaft 41. The rotating member 35 and the take-up reel 37 which are coaxial are coupled and integrated as will be described later.

  Further, the end of a lock wire 36 is coupled to the take-up reel 37, and the lock wire 36 is wound around the take-up reel 37 so as to be freely drawn out, and the inside of the first case 33. As shown in FIG. 4 and FIG. 5, of the both ends of the shutter curtain 1 in the width direction of the first case 33. The lead wire 33 is led out in the width direction of the shutter curtain 1 outside the first case 33 from the hole 33A formed in one end face, and the lock wire 36 is, as shown in FIG. It extends to the direction changing device 38 shown in FIGS. 1 and 2 through the inside of the second case 533 attached to the fixed portion 70A. This direction changing device 38 is arranged in the lintel 16 of FIG.

  In the above description, the locking wire 36 that is wound around the winding reel 37 disposed on the fixing portion 70A of the seat plate 1B of the shutter curtain 1 so as to be freely drawn out is a flexible string-like member. The lock wire 36 is also a bridging member spanned between the shutter curtain 1 and the stationary member. Further, 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 first case 33 in which the rotating member 35, the take-up reel 37, and the guide roller 29 are housed, and FIG. 10 shows S10-S10 in FIG. A line cross-sectional view 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. An inner end which is one end of the return spring 39 is fixed to the first case 33 and is connected to a shaft 41 which is a member on the first case 33 side, and an outer end which is the other end. Is connected to the rotating member 35 and the take-up reel 37, as will be described later. 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, since the return spring 39 by the mainspring spring is housed in a space 37A formed inside the take-up reel 37, the dimension in the thickness direction of the shutter curtain 1 with respect to the first case 33 is small. However, as can be seen from FIG. 6, the dimension of the shutter curtain 1 in the thickness direction of the take-up reel 37 can be made sufficiently large, whereby the take-up length of the lock wire 36 by the take-up reel 37 can be increased. It is sufficiently long and can be adapted to a shutter device having a long opening / closing movement distance of the shutter curtain 1.

  As shown in FIG. 8, a lock member 50 is housed inside the first case 33 so as to be rotatable in the vertical direction about a shaft 56 provided in the first 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, The other end portion 57C is engaged with both side portions 33B of the first case 33 shown in FIG. , 33 </ b> C is engaged with the first case 33 by being inserted into the hole of the bent portion 33 </ b> D formed at the lower end of the side surface portion 33 </ b> C shown in FIG. 7. Therefore, the torsion coil spring 57 is provided between the shaft 56 and the lock member 50 and the first case 33, and the lock member 50 causes the shaft 56 to be moved by the spring force of the torsion coil spring 57 in FIG. 8. It is urged to rotate in the M direction at the center. 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 first case 33. For this reason, the lock member 50 and the like are housed and arranged inside. Before the first case 33 is attached to the fixing portion 70 </ b> A of the seat plate 1 </ b> B of the shutter curtain 1, the lock member 50 is urged to rotate about the shaft 56 in the M direction by the spring force of the torsion coil spring 57. Even if the end portion 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, thereby the first lock member side contact portion of the lock member 50. 59A is large and can be prevented from protruding from the lower surface opening of the first case 33.

  When the seat plate 1B of the shutter curtain 1 in the closing movement is brought into contact with the obstacle 34 shown in FIG. 1, as shown in FIG. 5, the fixing portion 70A of the seat plate 1B of the shutter curtain 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 rotary member 35 that rotates by the lock wire 36 that is a string-like member and the curtain tenn sub-part 71B are operated when they contact the obstacle 34, and this operation causes the rotary member 35 to rotate. The first mechanical coupling device 55 for mechanically coupling the locking wire 36 and the shutter curtain 1 is configured by the locking member 50 or the like for stopping.

  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 first case 33 shown in FIG. Yes. 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 first case 33 is a long hole that extends 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 first case 33, the shaft 56, and the lock member 50 is rotated by the spring force. 50 is constantly biased toward the rotating member 35 indicated by the arrow X in FIG. 13, and the torsion coil spring 57 is an elastic member having such a biasing 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 first case 33 that is attached to the fixing portion 70A of the seat plate 1B of the shutter curtain 1 and in which the first mechanical coupling device 55 is accommodated can be seen from FIGS. 6, 7, and 8. The case main body 85 and a lid member 86 that covers the case main body 85 are provided. 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 first case 33 can be visually recognized. The window hole 86A is adjusted by the gap adjusting means 66 in FIG. An operation for confirming the size of the gap 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 first 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 1st case 33 to the fixing | fixed part 70A of the seat board 1B of the shutter curtain 1, the magnitude | size of the clearance gap 65 can be confirmed with the above-mentioned test | inspection tool inserted from the window hole provided in the cover member 86. At the same time, the size of the gap 65 can be confirmed by an inspection tool inserted from a window hole provided in the case body 85, and the inspection tool is long in the thickness direction of the shutter curtain 1. In addition, the size of the gap 65 can be confirmed by passing the inspection tool through the window holes provided in both the case main body 85 and the lid member 86.

  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.

  As described above, the first case 33 of the present embodiment has the case main body 85 and the lid member 86, and the case main body 85 faces the lid member 86 in the thickness direction of the shutter curtain 1. Since the main portion 85A is provided, as shown in FIG. 6 which is a sectional view taken along the line S10-S10 in FIG. 7, this main portion 85A is the side portion 33B, 33C described above of the first case 33. Among them, the side surface portion 33B close to the curtain main body 1A of the shutter curtain 1 is formed, and the lid member 86 forms the side surface portion 33C far from the curtain main body 1A. These side surface portions 33B and 33C It opposes the thickness direction of the curtain 1.

  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, which is a mainspring spring, can be made as large as the axial dimension of the take-up reel 37 (thickness dimension of the take-up reel). The spring 39 can accumulate a large return spring force when the shutter curtain 1 is closed, and the lock wire 36 is more reliably wound around the take-up reel 37 by the return spring force when the shutter curtain 1 is opened. It can be set as a spring with a large spring force.

  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 both ends of the shaft 41 projecting out of the first case 33 from the holes formed in the main portion 85A of the case main body 85 and the lid member 86 are removed from the one end of the shaft 41. A stop 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 one end of the return spring 39 by the mainspring spring is formed in the split groove 41A. The inner end 39 </ b> A, which is a portion, is inserted, 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 piece 35B is formed on the rotating member 35, which is a plate-like member, by cutting and raising, and this insertion piece 35B is inserted into the loop portion 39B. Further, an insertion piece 43C is also formed in the closing member 43, and this insertion piece 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.

  Note that the insertion piece 35B of the rotating member 35 and the insertion piece 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 rotary plate 48 having a disc shape with the shaft 41 penetratingly fixed to the center portion includes A plurality of holes 48 </ b> A are provided at equal intervals on the circumference centering 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.

  Further, of the main portion 85A of the case main body 85, the second surface portion 89 below the step portion 85E is provided with a protruding portion 85G protruding toward the rotating plate 48 by cutting or the like, and this protruding portion. A shaft portion of a bolt 101 that is a pin-like member is screwed into a screw hole 85H formed in 85G, and this shaft portion can be inserted into a 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 first 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 first case 33. When this rotation is performed, the return spring 39 having the inner end 39A connected to the shaft 41 and wound around the outer periphery of the shaft 41 is wound or tightened according to the rotation direction of the shaft 41. The spring force of the return spring 39 is adjusted, and after this adjustment, the shaft portion of the bolt 101 is moved to the hole of the rotating plate 48 that reaches the position facing the shaft portion. By inserting the shaft 48A, the shaft 41 is fixed to the first case 33 again in a non-rotatable manner.

  For this reason, the spring of the return spring 39 is provided by a bolt 101 or the like that is disposed on the shaft 41, the rotating plate 48, and further the first case 33 and is a pin-like member that can be inserted into and removed from the hole 48A of the rotating plate 48. A spring force adjusting means 102 for adjusting the magnitude of the force is configured.

  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.

  Note that the spring force adjusting means 102 of the present embodiment faces the curtain body 1A of the shutter curtain 1 in the first case 33 having the same thickness as the thickness direction of the shutter curtain 1. Since the first case 33 assembled with the spring force adjusting means 102 is attached to the fixing portion 70 </ b> A of the seat plate 1 </ b> B of the shutter curtain 1, a person other than the operator or the like is provided with the spring force adjusting means 102. Can be prevented from operating. Further, even after the first case 33 is attached to the fixing portion 70A, the spring force adjusting means 102 is connected to the shutter curtain of the first case 33 so that the operator can operate the spring force adjusting means 102. You may provide in the location on the opposite side to 1A curtain main body 1A.

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

  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 in the first case 33. The inner surface of the two side portions 33B and 33C that are opposed to each other in the thickness direction of the shutter curtain 1 is in contact with the inner surface of the two side portions 33B and 33C. Yes. 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 both ends of the shaft 56 are inserted. This occurs when the size of the hole of one case 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 end portions of the extending member 63 come into contact with the inner surfaces of the side surface portions 33B and 33C of the first case 33 made of metal, the lock member 50 with the shaft 56 as the center can be smoothly rotated up and down. Can ensure movement.

  As shown in FIG. 1, the fixed portion 70A (curtain main portion 71A) of the seat plate 1B has a shutter when the shutter curtain 1 that is being closed is in contact with the obstacle 34 as described above. A first case 33 in which a first mechanical coupling device 55 for mechanically coupling the curtain 1 and the locking wire 36 that is a string-like member is housed is attached, and the seat plate 1B. The fixed portion 70A includes a second mechanical coupling device 555 for mechanically coupling the shutter curtain 1 and the lock wire 36 when the shutter curtain 1 being moved in close contact with the obstacle 34. A stored second case 533 is also attached.

  FIG. 14 shows an overall front view of the second case 533, and FIG. 15 shows an internal structure of the second case 533. As shown in FIG. 15, the upper surface 533 </ b> B of the second case 533 is formed with a hole 556 through which the locking wire 36 enters and exits, and both end surfaces of the second case 533 in the width direction of the shutter curtain 1. Among them, a hole 557 through which the lock wire 36 enters and exits is formed in the end face 533C on the side facing the first case 33. From this hole 557, the locking wire 36 led out of the first case 33 through the hole 33A of the first case 33 shown in FIGS. 4 and 5 is introduced into the second case 533. For this reason, as shown in FIG. 1, one locking wire 36 is accommodated in the first mechanical coupling device 55 accommodated in the first case 33 and in the second case 533. The second mechanical coupling device 555 is a common member, and the portion of the locking wire 36 between the first case 33 and the second case 533 is the first mechanical coupling device 55. And a second mechanical coupling device 555 is a bridging portion 36A. The bridging portion 35 </ b> A extends in the width direction of the shutter curtain 1.

  As shown in FIG. 15, in the second case 533, two rotatable rollers 558 and 559 for guiding the lock wire 36 introduced into the second case 533 are provided as shutter curtains. 1 and a guide member 560 by a pin for guiding the lock wire 36 together with these rollers 558 and 559 are also arranged. Further, in the second case 533, a portion between the roller 558 and the roller 559 in the locking wire 36, that is, a middle member 36B of the locking wire 36 is sandwiched from above and below. The first lever member 561 and the second lever member 562 are disposed, and these lever members 561 and 562 are swingable up and down around the same fulcrum shaft 563. A downward pressing force by the torsion coil spring 564 acts on the upper first lever member 561, and the first lever member 561 is provided with a convex portion 561A that is curved downward. When the portion 561A hits the middle portion 36B of the locking wire 36, the downward swing limit of the first lever member 561 around the fulcrum shaft 563 is defined. Further, in order to prevent the first lever member 561 from largely swinging downward about the fulcrum shaft 563 when the intermediate portion 36B is relaxed, the second case 533 includes a first lever. A stop member 565 using a pin or the like for receiving the end of the member 561 opposite to the fulcrum shaft 563 side is fixed.

  A weight member 566 is attached to an end of the lower second lever member 562 opposite to the fulcrum shaft 563 side. Due to the weight of the weight member 566, the second lever member 562 has a fulcrum shaft 563. A downward swinging force is acting around the center. The second lever member 562 is provided with a convex portion 562A that is curved upward.

  Further, friction members 567 and 568 are formed on the lower surface of the upper first lever member 561 and the upper surface of the lower second lever member 562, in other words, on the surfaces of the lever members 561 and 562 facing each other. It is attached. When the first lever member 561 and the second lever member 562 pinch and lock the intermediate portion 36B of the locking wire 36, the friction members 567 and 568 generate the frictional force with the intermediate portion 36B. It is intended to increase the size and secure the lock. The convex portion 562A of the second lever member 562 immediately before the second lever member 562 swings upward about the fulcrum shaft 563 so that the friction members 567 and 568 sandwich and lock the intermediate portion 36B. The intermediate portion 36B is pushed upward, whereby the intermediate portion 36B by the friction members 567 and 568 is clamped and locked more reliably. The lower second lever member 562 is provided with a convex portion 562B that is curved downward.

  As shown in FIG. 15, the swinging member 81 shown in FIG. 4 etc. is shown in FIG. 4 etc. at a location corresponding to the convex portion 562B of the lower second lever member 562. A pressing member 554 similar to the pressing member 54 is attached.

  FIG. 16 shows a state in which the shutter curtain 1 that is moving to be closed comes into contact with the obstacle 34. As described above, this abutment is that the curtain sub-portion 71B abuts on the obstacle. Even if the descent of the curtain sub-portion 71B stops at the obstruction 34, the curtain main portion 71A descends. The swinging member 81 disposed inside the curtain main portion 71A swings upward about the fulcrum shaft 80 by the relative rise of the curtain sub-portion 71B with respect to the curtain main portion 71A generated by the lowering.

  As a result, the pressing member 554 attached to the swing member 81 pushes up the convex portion 562B of the second lever member 562, so that the second lever member 562 swings upward about the fulcrum shaft 563, and the second lever The friction member 568 attached to the member 562 pushes up the middle part 36B of the locking wire 36 upward. By this push-up, the upper first lever member 561 swings upward about the fulcrum shaft 563 via the friction member 567 attached to the first lever member 561, and this upward swing Thus, the torsion coil spring 564 is compressed, so that the intermediate portion 36B is sandwiched between the friction members 567 and 568 of the two lever members 561 and 562 with a large load from above and below. As a result, the intermediate portion 36B of the lock wire 36 is clamped and locked, so that the shutter curtain 1 and the lock wire 36 are mechanically coupled.

  For this reason, in this embodiment, the shutter curtain 1 and the lock wire 36 are connected by the two lever members 561, 562 and the like which are actuating members that are actuated when the curtain sub-part 71B comes into contact with the obstacle 34. The second mechanical coupling device 555 is configured to bring the two into a mechanically coupled state.

  The locking wire 36 in which the midway part 36B is inserted into the second case 533 passes through the hole 556 in the upper surface part 533B of the second case 533 shown in FIG. 15 and FIG. The lock wire 36 is led upward and reaches the direction changing device 38 shown in FIG. As shown in FIG. 2, the direction changing device 38 arranged in the above-described lintel 16 is used for locking that extends to the direction changing device 38 by the guide action of one or more guide rollers. The direction of the wire 36 is converted into the horizontal direction.

  As shown in FIGS. 1 to 3, the composite apparatus 100 is mounted and fixed on the upper part of the opening / closing machine 13 described above. FIG. 17 is a front view showing the internal structure of the composite apparatus 100, and FIG. 18 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 part 110A of FIG. 17 provided on the machine casing 110 of the composite apparatus 100. This state is also shown in FIG. Further, as shown in FIG. 18, 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 19, 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. 2, the end of the lock wire 36 whose direction is changed to the horizontal direction by the direction changing device 38 is connected via a connecting member 94. The end portion of the outer cable 114 of the first control wire 111 is supported by a support member 92 that is coupled to the shutter box 8 via the intermediate member 93.

  In this embodiment, the lock wire 36 and the first control wire 111, both of which are string-like members, are separate members connected by a connecting member 94. The first control wire 111 may be omitted by extending to 100.

  As shown in FIGS. 17 and 18, the above-described 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 includes a first control wire 111 connected to the first mechanical coupling device 55 shown in FIGS. 8 and 9 via the lock wire 36, and an automatic closing device 32. It is a device placed between them. 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. 17 and 18, 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. 19B having a length straddling 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 17, 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. 17, the actuating member 122 of the present embodiment is a head portion 124 </ b> A of a bolt 124. Therefore, the head portion 124 </ b> A is rotated to bend the bolt 124 of the first slide member 120. 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. 19B, 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 solenoid 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. 17, the tip member 140 having an inverted L shape has an upside down member 141 on the surface opposite to the surface with which the one end of the bending lever member 129 is in contact. This raising / lowering member 141 is centered on the lower part through which the center shaft 142A (see also FIG. 17) by a screw provided at the rising portion of the bracket 142 shown in FIG. 19 (B) is inserted. 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.19 (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. 19B, the automatic closing device 32 is provided with a first electrical switch 135, and the first electrical 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. 17).

  As shown in FIG. 19B, 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 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. 18 and 19B. 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. 19A will be described.

  As shown in FIG. 19A, the above-described machine casing 110 of the composite apparatus 100 includes a first rotating member 201 that is rotatable about a central axis 201A and a center 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. 19A, 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. 19 (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 rotation member 201 is always urged to rotate in the B direction in FIG. 19A about the central axis 201A by the spring 205, and the first rotation 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. 18, 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. 19A 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 that the convex portion 211 of the second rotating member 202 abuts on the end of the opening hole 210A, 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. 17, 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. Further, as shown in FIG. 19A, the second slide member 210 has a first and a first portion relative to the connecting portion 138 </ b> A 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. 17, the connecting portion 138A has a length extending upward, and the connecting portion 138A and the stepped surface 210B are in the normal state shown in FIGS. 19A and 19B. 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. 20A and 20B and FIGS. 21A and 21B, 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. 22 (A), the first slide member as shown in FIG. 22 (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 central axis 202A as the center. 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 casing 110 of the composite device 100 by being attached to the lower surface of the bracket 203 described above, as shown in FIGS. 17 and 18. Has been.

  Further, as shown in FIG. 19A, 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 An automatic closing shown in FIG. 19B by 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. 19B 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. 20B among the three positions H, I, and J shown in FIGS. 18 and 19B. 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.

  By stopping energization of the solenoid 126, 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. Therefore, as described above, the first portion 31A swings in the A direction with the second bent portion 31D of the lever member 31 as a fulcrum, so that the brake shaft 21 and the second brake of the brake device 19 of the switch 13 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. 19B, 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. 19B, 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. 20 (A) and 21 (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. 20B and 21B, the second slide member 210 is shown in FIGS. 20A and 21A. 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. 20A and 21A maintains the same state as in FIG. 19A. 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. 21B to the initial position where the front end of the first slide member 120 becomes the H position in FIGS. 18 and 19B. It will be. In addition, 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 closed and moved, in other words, the automatic closing device 32 is in the state shown in FIG. 21A is in the state shown in FIG. 21A, and when the shutter curtain 1 is closing and moving, there is an obstacle 34 shown in FIG. 1 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 locking wire 36 and the shutter curtain 1 are coupled by the first mechanical coupling device 55 described above by the pressing member 54 of FIG. The locking wire 36 and the shutter curtain 1 are coupled by the second mechanical coupling device 555 described above by the pressing member 554 of FIG. 15 provided on the swing member 81 as described below.

  That is, when the lock wire 36 and the shutter curtain 1 are mechanically coupled by the first mechanical coupling device 55, the first mechanical coupling is performed by the pressing member 54 of FIG. The lock member 50 constituting the device 55 rotates in the N direction of FIG. 8 to be in the state of FIG. 9, and the tooth portion 53 of the lock member 50 engages with the tooth portion 35 </ b> A of the rotation 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 take-up 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 first mechanical coupling device 55 having the rotary member 35 and the lock member 50 as components. It will be done. For this reason, the tension | tensile_strength by the weight except the movable part 70B among the weights of the shutter curtain 1, ie, the weight of the curtain main part 71A, acts on the wire 36 for a lock | rock.

  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 locking wire 36 coupled to the shutter curtain 1 by the first mechanical coupling device 55 is pulled by the amount corresponding to 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.

  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. Similarly, the pulling amount of the locking wire 36 can be sufficiently secured.

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

  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. 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 formed by the long holes 67 formed in the first case 33 described above. Since it is movable toward and away from the rotating 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 above-described deadlock state occurs, the lock member 50 and the shaft 56 are slightly moved in the direction of retreating from the rotating member 35 due to the reaction force from the rotating member 35 to eliminate the deadlock state and torsion. Due to the elastic biasing force of the coil spring 57, the rotary member 35 moves forward, whereby the first tooth portion 53A of the lock member 50 engages with the tooth portion 35A of the rotating member 35 that continues to rotate. It becomes door.

  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.

  The above description is about when the locking wire 36 and the shutter curtain 1 are mechanically coupled by the first mechanical coupling device 55, but the locking wire 36 and the shutter curtain 1 are coupled by the second mechanical coupling device 555. When the shutter curtain 1 is mechanically coupled, as described above, the pressing member 554 attached to the swing member 81 shown in FIGS. 15 and 16 is the convex portion 562B of the second lever member 562. By pushing up, the second lever member 562 swings upward about the fulcrum shaft 563. Therefore, the friction member 568 attached to the second lever member 562 moves the middle portion 36B of the locking wire 36 upward. By pushing up, the first lever member 561 on the upper side is pushed up and the friction member 567 attached to the first lever member 561 is pushed up. Since the torsion coil spring 564 is compressed, the intermediate portion 36B of the lock wire 36 is moved by the friction members 567 and 568 of the two lever members 561 and 562. It is sandwiched with a large load from above and below. As a result, the midway part 36B of the locking wire 36 is clamped and locked, and the shutter curtain 1 and the locking wire 36 are mechanically coupled by the second mechanical coupling device 555. And the tension | tensile_strength by the weight except the movable part 70B among the weights of the shutter curtain 1 acts on the wire 36 for a lock | rock similarly to the 1st mechanical coupling device 55. FIG.

  When the intermediate portion 36B of the locking wire 36 is clamped and locked by the friction members 567 and 568, the intermediate portion 36B is provided by the guide member 560 and the second lever member 562 as shown in FIG. A detour portion 36C that is not linear is formed. For this reason, even if the obstacle 34 is a hard object that does not dent deform or hardly dent deforms, the detour portion 36C is formed in the lock wire 36, in other words, the intermediate portion 36B that is linear is formed. By becoming non-linear, the locking wire 36 can be pulled greatly, as with the first mechanical coupling device 55.

  In the present embodiment, as shown in FIG. 1, the first case 33 and the second case 533 are separated from the fixing portion 70 </ b> A (curtain main portion 71 </ b> A) of the seat plate 1 </ b> B in the width direction of the shutter curtain 1. Are provided, the first mechanical coupling device 55 is disposed inside the first case 33, the second mechanical coupling device 555 is disposed inside the second case 533, and these mechanical coupling devices 55. And 555, a bridging portion 36A of one lock wire 36 is bridging. For this reason, the position of the obstacle 34 that is in contact with the shutter curtain 1 that is moving in the closed position is shifted to one side of the both sides in the width direction of the shutter curtain 1, and thereby the first mechanical coupling device 55. And the second mechanical coupling device 555, the mechanical coupling device arranged on the shutter curtain 1 at a position opposite to the one side swings around the fulcrum shaft 80 shown in FIG. Even if the operation may not be performed due to torsional deformation or the like of the swinging member 81, or the operation is insufficient, the shutter curtain 1 and the lock wire 36 are mechanically coupled by another mechanical coupling device. Thereby, tension force due to the weight excluding the movable portion 70B out of the weight of the shutter curtain 1 can be applied to the locking wire 36.

  For this reason, according to the present embodiment, the width dimension of the shutter curtain 1 is large, and any position in the width direction of the shutter curtain 1 where the width dimension is large in this way can be in contact with the obstacle 34. As will be described later, a tension force for stopping the closing movement of the shutter curtain 1 can be applied to the locking wire 36.

  As described above, when the shutter curtain 1 in the closed movement is brought into contact with the obstacle 34 and the lock wire 36 is pulled downward, the tension of the lock wire 36 is exerted 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 that is in the state of FIG. 21A as described above. Since the first rotating member 201 is connected to the first rotating member 201, the first rotating member 201 rotates in the direction C in FIG. 19A, and this rotation causes the cam portion 201C of the first rotating 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. 22B, 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.

  In the above operation, as described above, when the second rotating member 202 is rotated in the G direction in FIG. 19A, 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. 19A 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 lock of the first mechanical coupling device 55 is considered as described above in consideration of the case where the obstacle 34 is a hard object that does not dent deformation or has a small dent deformation. The member 50 is provided with three tooth portions 53A, 53B, and 53C, and the length by which the first control wire 111 is pulled by the action of these tooth portions 53A, 53B, and 53C is increased. The second mechanical coupling device 555 forms a detour portion 36C on the lock wire 36 to make the intermediate portion 36B which is a straight line non-linear, and lengthens the first control wire 111 to be pulled. Even when the side surface 201D of the cam portion 201C of the first rotation member 201 is in contact with the convex portion 208 of the second rotation member 202 out of the total rotation amount of the first rotation member 201. Only, rotation in the C direction of the first rotation member 201 to the second rotating member 202, will be transmitted as a rotation in the direction G of the second rotating member 202.

  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 being moved is in contact with the obstacle 34, the position at which the first slide member 120 moves backward is shown in FIG. As shown, among the three positions I, J, and H shown in FIGS. 18 and 19B, the position reaches the J position. The J position is a position in front of the H position, which is the initial position, and is a position at which the brake device 19 can be mechanically switched from OFF to ON by the first slide member 120. FIG. ) Is a position where the roller 130 of the bending lever member 129 is maintained in a state of being escaped from the concave portion 120B of the first slide member 120, as in FIG. The fact that the roller 130 is in a state of being escaped from the recess 120B in this manner is shown in FIG. 22B, which shows the time when the shutter curtain 1 in the closing movement 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, when the brake device 19 is switched from OFF to ON, and the obstacle 34 is removed after the closing shutter curtain 1 stops, the curtain sub part 71B of the shutter curtain 1 descends. Therefore, the coupling between the shutter curtain 1 and the locking wire 36 by the first mechanical coupling device 55 and the second mechanical coupling device 555 is released. 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 of FIG. The second rotation member 202 rotates in the direction F in FIG. 19A when the second slide member 210 moves forward with the spring 212, and the second slide member 210 moves forward to automatically close 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 is shifted from the J position in FIG. 22B to the I position shown in FIGS. 18 and 19B. For this reason, the brake device 19 of the opening / closing machine 13 is mechanically switched again from on to off, and the shutter curtain 1 is closed and restarted.

  At this time, when the second rotating member 202 rotates in the F direction in FIG. 19A, 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. 22B to the I position in FIGS. 18 and 19B, 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 the present embodiment, the lock member 50 that is a constituent member of the first mechanical coupling device 55 shown in FIGS. 8 and 9 includes the teeth of the lock member 50 as described in FIG. Since the gap adjusting means 66 for adjusting the size of the gap 65 between the tip of the portion 53 and the tip of the tooth portion 35A of the rotating member 35 is provided, the shutter curtain 1 is in contact with the obstacle. In the normal time when there is not, 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, a tension force or a pulling force acts on the first control wire 111, so that 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. 19 (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.

  In the embodiment described above, as shown in FIG. 1, two mechanical coupling devices 55, 555 are provided in the width direction of the shutter curtain 1, and one of these mechanical coupling devices 55, 555 is provided. The mechanical coupling device 55 is operated when the shutter curtain 1 is in contact with the obstacle 34 and the rotating member 35 that is rotated by the lock wire 36 that is a string-like member when the shutter curtain 1 is opened and closed. And a locking member 50 for stopping the rotation of the rotating member 35, and the other mechanical connecting device 555 is operated when the shutter curtain 1 comes into contact with the obstacle 34 for locking. This is a case of a mechanical coupling device having two lever members 561 and 562 that are actuating members that place the wire 36 in the clamped state. These mechanical coupling devices 55,555 has a mechanical coupling device heterogeneous structure is different for coupling a lock wire 36 is a shutter curtain 1 and the cord-like member mechanically.

  FIG. 23 shows the same type of mechanical coupling in which the structure for mechanically coupling the shutter curtain 1 and the lock wire 36 when the shutter curtain 1 in the closed movement abuts against the obstacle 34 is the same. An embodiment in which the devices 555 and 455 are provided in the width direction of the shutter curtain 1 is shown.

  In this embodiment, the mechanical coupling device 555 is accommodated inside the case 533 and arranged in the fixing portion 70A (curtain main portion 71A) of the seat plate 1, and the mechanical coupling device 455 is accommodated inside the case 433. And is disposed on the fixing portion 70 </ b> A of the seat plate 1. Therefore, in this embodiment, the case 533 shown in the embodiment of FIGS. 1 and 14 and a machine that is housed in the case 533 and that is operated by being pushed up by the pressing member 554 of the swing member 81 shown in FIG. The type coupling device 555 is used as it is.

  FIG. 24 shows the case 433 shown in FIG. 23 and the mechanical coupling device 455 housed in the case 433. As with the mechanical coupling device 555 shown in FIG. 15, this mechanical coupling device 455 includes two rotatable rollers 458 and 459 for guiding the locking wire 36 introduced into the case 433, and these The guide member 460 by a pin for guiding the lock wire 36 together with the rollers 458 and 459, and the portion of the lock wire 36 between the roller 458 and the roller 459, that is, the middle portion 36D of the lock wire 36 from above and below. A first lever member 461 and a second lever member 462 that are clamping members for clamping, a fulcrum shaft 463 that is a central axis of vertical swing of these lever members 461 and 462, and an upper side The first lever member 461 includes a torsion coil spring 464 for applying a downward pressing force, and the lower second lever member. A weight member 466 is attached to the end of the 62 opposite to the fulcrum shaft 463 side, and in other words, on the lower surface of the upper first lever member 461 and the upper surface of the lower second lever member 462, Friction members 467 and 468 are attached to the surfaces of the lever members 461 and 462 facing each other.

  A hole 457 through which the locking wire 36 enters and exits is formed in an end surface 433D on the side facing the case 533 among both end surfaces in the width direction of the shutter curtain 1 in the case 433, and a lock is formed in the upper surface portion 433B of the case 433. A hole 456 through which the wire 36 enters and exits is formed.

  As shown in FIG. 23, the end portion of the locking wire 36 extending upward from the case 533 is connected to the winding device 440 disposed on the lintel 16 serving as the stationary member described above. Yes. The take-up device 540 is provided with a take-up reel for taking up the lock wire 36 in a freely retractable manner. The take-up reel that takes out the lock wire 36 when the shutter curtain 1 is closed is returned by a mainspring spring or the like. A spring is connected to the return spring, and when the shutter curtain 1 is closed, a return force for winding the lock wire 36 is accumulated when the shutter curtain 1 is opened.

  Further, as shown in FIG. 23, the portion of the locking wire 36 between the case 533 and the case 433 includes a mechanical coupling device 555 housed inside the case 533 and the inside of the case 433. This is a bridging portion 36E that is spanned between the mechanical coupling device 455 housed in the machine.

  Further, the locking wire 36 extending upward from the hole 456 of the case 433 shown in FIG. 24 extends to the direction changing device 438 arranged in the lintel 16 in FIG. The first control wire 111 is connected to the end of the locking wire 36 whose direction has been changed in the lateral direction, as in the embodiment of FIGS.

  Further, as shown in FIG. 24, the rocking member 81 shown in FIG. 4 and the like is shown in FIG. 15 and the like at a position corresponding to the convex portion 462B of the second lever member 462 on the lower side. A pressing member 454 similar to the pressing member 554 is attached.

  For this reason, when the shutter curtain 1 in the closed movement comes into contact with the obstacle 34, the pressing member 454 pushes up the convex portion 462B of the second lever member 462, so that the second lever member 462 faces upward with the fulcrum shaft 463 as a center. The friction member 468 of the second lever member 462 pushes up the middle portion 36D of the locking wire 36 upward, and by this pushing up, the upper first lever member 461 causes the friction member of the first lever member 561 to move. Since it swings upward about the fulcrum shaft 463 via 467, the middle portion 36D of the lock wire 36 is caused by the friction members 467 and 468 of the two lever members 461 and 462 due to compression of the torsion coil spring 464. For this reason, the shutter curtain 1 and the lock wire 3 are clamped by a mechanical coupling device 455. DOO is a state of being coupled mechanically and the locking wire 36, of the weight of the shutter curtain 1, tensioning force by weight except for the movable portion 70B acts.

  Also in this embodiment, when the intermediate portion 36D of the locking wire 36 is clamped and locked by the friction members 467 and 468, the intermediate portion 36D is shown in FIG. 16 by the guide member 460 and the second lever member 462. In the same manner as described above, since a detour portion that is not linear is formed, the detour portion is formed in the lock wire 36 even if the obstacle 34 is a hard object that does not dent deform or hardly dent deform. Then, the midway portion 36D, which is linear, becomes non-linear, so that the locking wire 36 can be pulled greatly.

  In the embodiment of FIGS. 23 and 24 as well, the mechanical coupling between the mechanical coupling devices 555 and 455 arranged in the width direction of the shutter curtain 1 is similar to the embodiment of FIG. Since the bridging portion 36E of one lock wire 36 that is a common member for the devices 555 and 455 is bridging, the position of the obstacle 34 that abuts on the shutter curtain 1 that is closing and moving is determined by the shutter. Of the both sides of the curtain 1 in the width direction, the position is shifted to one side. Accordingly, the mechanical coupling devices 555 and 455 are arranged on the shutter curtain 1 at a position opposite to the one side. Even if the mechanical coupling device does not operate or becomes insufficient due to torsional deformation or the like of the swing member 81 swinging around the fulcrum shaft 80 shown in FIG. The shutter curtain 1 and the lock wire 36 can be mechanically coupled by another mechanical coupling device. For this reason, the movable portion of the weight of the shutter curtain 1 is connected to the lock wire 36. Tension force due to weight excluding 70B can be applied.

  Therefore, also in the embodiment of FIGS. 23 and 24, the width dimension of the shutter curtain 1 is large, and the obstacle 34 hits anywhere in the width direction of the shutter curtain 1 where the width dimension is thus large. Even if it comes into contact, the tension force for stopping the closing movement of the shutter curtain 1 can be applied to the locking wire 36.

  In each of the embodiments described above, two mechanical coupling devices are arranged in the width direction of the shutter curtain 1, but as shown in FIG. A single mechanical coupling device 55, 655, 555 may be arranged.

  That is, the embodiment shown in FIG. 25 is similar to the embodiment shown in FIG. 1 except that the case 633 disposed in the fixing portion 70A (curtain main portion 71A) of the seat plate 1 and the inside of the case 633 And a mechanical coupling device 655 housed therein. Similar to the mechanical coupling devices 455 and 555, the mechanical coupling device 655 is an operation member that operates when the shutter curtain 1 comes into contact with the obstacle 34 and puts the locking wire 36 in a pinched locked state. The two lever members are provided.

  For this reason, in the embodiment of FIG. 25, of the three mechanical coupling devices 55, 655, and 555, two mechanical coupling devices 655 and 555 are closed, and the shutter curtain 1 that is moving in contact with the obstacle 34. This is a mechanical coupling device of the same type that has the same structure for mechanically coupling the shutter curtain 1 and the lock wire 36 when in contact, and the remaining mechanical coupling device 55 However, the structure for mechanically coupling the shutter curtain 1 and the locking wire 36 when the closing shutter curtain 1 abuts against the obstacle 34 is different from the mechanical coupling devices 655 and 555. This is a mechanical coupling device.

  One locking wire 36 is a common member for the three mechanical coupling devices 55, 655, and 555, and the mechanical coupling device 55, the mechanical coupling device 655 in the locking wire 36, And between the mechanical coupling device 655 and the mechanical coupling device 555 are spanning portions 36F and 36G having a length extending in the width direction of the shutter curtain 1.

  In the embodiment shown in FIGS. 1 and 25, the two mechanical coupling devices 55 and 555 are arranged opposite to each other, and the structures of the mechanical coupling devices 55 and 555 are symmetrical. Thus, the arrangement position of the mechanical coupling device 555 is set to a position directly below or substantially directly below the composite device 100, whereby the lock wire 36 is extended to the composite device 100, and the direction change device 38 or the direction change device 38 is combined. The first control wire 111 extending to the device 100 may be omitted. Further, in the embodiment of FIGS. 1 and 25, the lock wire 36 is extended to the composite device 100 by setting the position of the opening / closing machine 13 and the composite device 100 as the left end portion of the winding shaft 11, and the direction The conversion device 38 and the first control wire 111 extending from the direction changing device 38 to the composite device 100 may be omitted.

  However, when the arrangement positions of the mechanical coupling devices 55, 555, the switch 13, and the composite device 100 are set as described above, an object (not shown), a building frame, etc., and the lock wire 36 arranged in the ceiling space 7 or the like. 1 and 25, the mechanical coupling devices 55 and 555, the switch 13 and the composite device 100 may be arranged as shown in FIGS.

  Further, omitting the first control wire 111 means that the mechanical coupling device 455 is positioned directly below the composite device 100 even in the embodiment of FIG. 23 in which the mechanical coupling device 455 and the direction changing device 438 are used. Or it can implement similarly by omitting the direction changing device 438 in the position almost right below.

  Further, in each of the embodiments described above, the mechanical coupling device 55 includes a lock member 50 that is a swinging member that swings about the shaft 56 when the shutter curtain 1 contacts the obstacle 34. The mechanical coupling devices 455, 555, and 655 are provided with lever members 462 that are swing members that swing about the shafts 463 and 563 when the shutter curtain 1 contacts the obstacle 34. 562 is provided. At least one of the mechanical coupling devices 55, 455, 555, and 655 in which a plurality of positions in the left-right direction of the shutter curtain 1 with which the obstacle 34 abuts are provided in the left-right direction of the shutter curtain 1. In order to enable the rocking members of these mechanical coupling devices 55, 455, 555, and 655 to be rocked in conjunction with each other even at a location far from the coupling device, the mechanical coupling device 55, For example, the swing members 455, 555, and 655 may be connected by a connecting member such as a wire.

  Further, in each of the embodiments described above, the delay device 300 is provided in the composite device 100 to which the first control wire 111 that is an extension member of the lock wire 36 has been reached. Also, the seat plate 1B of the shutter curtain 1, the midpoint in the extending direction of the locking wire 36, or the midpoint in the extending direction of the first control wire 111 may be disposed. Further, a lock wire is provided for each of the mechanical coupling devices 55, 455, 555, and 655 provided in the left and right direction of the shutter curtain 1, and these lock wires are connected to one first control wire. When doing so, you may arrange | position a delay apparatus in the middle part of the extension direction of this 1st control wire.

  Further, in each of the embodiments described above, the second electric switch 220 shown in FIG. 19A for opening and moving the shutter curtain 1 from the position in contact with the obstacle 34 to the predetermined height position and stopping. However, the electric switch or the obstacle detection means similar to the electric switch may be arranged in the same manner as the delay device described above.

  Further, in each of the embodiments described above, when the shutter curtain 1 comes into contact with the obstacle 34 in the portion of the locking wire 36 that is wired in the left-right direction on the seat plate 1B of the shutter curtain 1. 16, the lever member 562 causes a non-linear state, but when the shutter curtain 1 is not in contact with the obstacle 34, except for the portion wound by the take-up reel 37, There is no portion that is in a non-linear state, a loop shape, or a folded state, and the portion that is taken up by the take-up reel 37 is merely a loop shape in the vertical direction. There is no loop in the thickness direction.

  For this reason, it is possible to eliminate or suppress the occurrence of deformation such as a bending wrinkle in the lock wire 36, so that when the shutter curtain 1 comes into contact with the obstacle 34, the tension force is immediately applied to the lock wire 36. This tension force can be transmitted to the composite device 100 configured to include the automatic closure 32.

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

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is an opening / closing body 6 Guide rail which is a guide member 13 Opening and closing machine 18 Electric motor device 19 Brake device 32 Automatic closing device 33,433,533,633 Case 34 Obstacle 35 Rotating member 36 For lock which is a string-like member Wire 36A, 36E, 36F, 36G Crossing part 50 Lock member 55, 455, 555, 655 Mechanical coupling device 71A Curtain main part 71B opening / closing body main part 71B Curtain sub part 120 serving as opening / closing body sub part 120 Brake device on First slide member 461, 462, 561, 562 which is a slide member for switching off, lever member which is an operating member

Claims (7)

The string-like member is arranged on the string-like member by being mechanically coupled to the string-like member when the opening-closing body that is movable to be opened and closed is in contact with an obstacle. In the opening / closing body stop device of the opening / closing apparatus having a mechanical coupling device for applying a tension force due to the weight of the opening / closing body,
An opening / closing body stop device for an opening / closing device, wherein a plurality of the mechanical coupling devices are provided in the width direction of the opening / closing body.   2. The opening / closing body stop device for an opening / closing apparatus according to claim 1, wherein the plurality of mechanical coupling devices include the opening / closing body and the string when the opening / closing body being closed contacts the obstacle. An opening / closing body stopping device for an opening / closing device, comprising different types of mechanical coupling devices having different structures for mechanically coupling the shaped member.   3. The opening / closing body stop device for an opening / closing apparatus according to claim 1, wherein the plurality of mechanical coupling devices include the opening / closing body and the opening / closing body when the opening / closing body being closed contacts the obstacle. An opening / closing body stop device for an opening / closing device, comprising a mechanical coupling device of the same type having the same structure for mechanically coupling the string-like member.   The switchgear stopping device for the switchgear according to any one of claims 1 to 3, wherein one of the string-like members is provided for at least two of the plurality of mechanical couplers. The single string-like member has a length extending in the width direction of the opening / closing body and is spanned between the at least two mechanical coupling devices. An opening / closing body stopping device for an opening / closing device, characterized in that a transfer section is provided.   The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 4, wherein the plurality of mechanical coupling devices include a rotating member that rotates by the string-like member when the opening / closing body is opened and closed. An opening / closing apparatus comprising: a mechanical coupling device that includes a lock member that operates when the opening / closing body abuts against the obstacle and stops the rotation of the rotating member by the operation. Opening and closing body stop device.   6. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 5, wherein the plurality of mechanical coupling devices operate when the opening / closing body abuts against the obstacle and the string. An opening / closing body stopping device for an opening / closing device, comprising: a mechanical coupling device having an operation member that puts the shaped member into a clamped lock state. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 6, 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 slidable for the mechanical coupling device to mechanically connect the opening and closing body and the string-like member when the opening and closing body contacts the obstacle. Opening / closing body stop of the opening / closing device, wherein 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 / closing body. apparatus.

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