JP2013049948A - 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, capable of avoiding an abutting state of an engaging member and a rotary member and preventing excessive loads from acting on the engaging member or the like.SOLUTION: A shutter curtain which is an opening/closing body can be stopped and moved by a brake device. When the shutter curtain is abutted to an obstacle, tensioning force acts on a lock wire 36 which is a string-like member, and the brake device is turned on. To the curtain, a mechanical coupling device 55 for coupling the curtain and the wire 36 and making the tensioning force act on the wire 36 when the curtain is abutted to the obstacle is arranged. The device includes a rotary member 35 having a tooth part 35A, and an engaging member 50 for engaging an engaging part 53 with the tooth part 35A by performing a motion to the curtain when the curtain is abutted to the obstacle, and an elastically deformable elastic part 54 is provided in a motion load transfer route for transferring the motion load of the engaging member from the curtain through the engaging member to the tooth part of the rotary member.

Description

  The present invention relates to an opening / closing body stop device of an opening / closing device for stopping the closing movement when the opening / closing body being closed contacts with an obstacle. The present invention can be used for various opening / closing devices such as shutter devices for disaster prevention and the like, awning devices, and smoke protection banner devices.

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

  The stopping device is a brake device for stopping and moving the shutter curtain, which is an openable and closable opening / closing body by turning on and off, and tension when the closing shutter curtain abuts against an obstacle. A string-like member that turns on the brake device in order to stop the movement of the shutter curtain due to the force, and the shutter curtain is arranged on the shutter curtain. A mechanical coupling device that mechanically couples the string-shaped member and applies tension to the string-shaped member. The mechanical coupling device includes a tooth portion, a rotating member that rotates when the shutter curtain moves, and an engaging portion that can be engaged with the tooth portion, and the shutter curtain abuts against an obstacle. The engagement portion includes an engagement member that engages with the tooth portion by performing a movement with respect to the shutter curtain, and the rotation member rotates by the engagement of the engagement portion with the tooth portion. The opening / closing body and the string-like member are mechanically coupled by stopping the movement.

JP 2009-13647 A

  In the above stop device, when the shutter curtain comes into contact with the obstacle, the engaging member moves with respect to the shutter curtain, whereby the engaging portion of the engaging member engages with the tooth portion of the rotating member, and the rotating member. However, the engaging portion of the engaging member does not engage with the tooth portion of the rotating member, and the tip of the engaging portion and the tip of the tooth portion of the rotating member come into contact with each other. Thereby, there is a possibility that the engaging member and the rotating member may be in abutting state, in other words, there is a possibility that the engaging member and the rotating member may be in a deadlocked state. Since an excessive load is applied to the engaging member or the like due to the abutment between the engaging member and the rotating member, a device that can avoid the above-described state is required.

  An object of the present invention is to provide an opening / closing body stopping device for an opening / closing device that can prevent an engagement member and a rotating member from coming into contact with each other and prevent an excessive load from acting on the engagement member or the like. There is to offer.

  An opening / closing body stop device for an opening / closing apparatus according to the present invention includes a brake device for stopping and moving an openable / closable opening / closing body by turning it on and off, and the opening / closing body in a closed movement hitting an obstacle. A tension force acts upon contact, and is arranged on the opening / closing body and a string-like member that turns on the brake device in order to stop the movement of the opening / closing body by the tension force, and the opening / closing body is the obstacle A mechanical coupling device that mechanically couples the opening and closing body and the string-like member by abutting on the string-like member and applies the tension to the string-like member, and the mechanical coupling device includes a tooth portion. A rotating member that rotates when the opening / closing body is moved, and an engaging portion that can be engaged with the tooth portion, and the movement with respect to the opening / closing body when the opening / closing body contacts the obstacle The engaging portion engages with the tooth portion by performing An opening / closing device that includes an engaging member and mechanically couples the opening / closing body and the string-like member by stopping the rotation of the rotating member by engaging the engaging portion with the tooth portion. In the opening / closing body stop device, the movement load transmission path for transmitting the movement load of the engaging member from the opening / closing body to the tooth portion of the rotating member through the engagement member can be elastically deformed. An elastic part is provided.

  In the stopping device according to the present invention, an elastic portion that is elastically deformable is provided in a motion load transmission path for transmitting the motion load of the engagement member from the opening / closing body to the tooth portion of the rotation member via the engagement member. Therefore, the engagement member moves with respect to the opening / closing body when the closing movement of the opening / closing body abuts on the obstacle, and thereby the engagement portion of the engagement member tries to engage the tooth portion of the rotating member. When the engagement portion and the tip of the tooth portion are in contact with each other and the engagement member and the rotation member are in contact with each other, the engagement member is caused by elastic deformation of the elastic portion. Can be avoided by elastically retreating with respect to the rotating member, and therefore, an excessive load can be prevented from acting on the engaging member or the like.

  In the present invention described above, the movement performed by the engaging member with respect to the opening / closing body when the opening / closing body in the closing movement abuts on the obstacle may be a rotational movement (oscillating movement) or a linear movement. These may be combined movements, and any movement may be used as long as the engaging part of the engaging member can engage with the tooth part of the rotating member.

  Further, in the present invention, the elastic portion that can be elastically deformed is engaged with these opening and closing bodies in order to transmit the motion load of the engaging member from the opening and closing body to the tooth portion of the rotating member through the engaging member. As long as it is in the motion load transmission path formed by the teeth of the member and the rotating member, it can be provided at any location.

  For example, when the opening / closing body and the engagement member are provided with an opening / closing body-side contact portion and an engagement member-side contact portion that contact each other in order to move the engagement member by the opening / closing body, the opening / closing body-side contact The part is an elastic part.

  Moreover, you may provide the said elastic part in an engaging member. In this way, the elastic member is provided on the engagement member, and the opening / closing body side contact portion and the engagement member side contact which contact the opening / closing body and the engagement member to move the engagement member by the opening / closing body are provided. When the contact portion is provided, the engagement member side contact portion may be an elastic portion.

  Moreover, when providing the said elastic part in an engaging member, this engaging member contains the elastic member which forms the said elastic part, and at least 2 component member connected with this elastic member. Of these components, one component member may be movable with respect to the other component member by elastic deformation of the elastic member.

  In this case, the movement of the one constituent member performed by the elastic deformation of the elastic member with respect to the other constituent member may be a rotational motion, a linear motion, a combined motion thereof, or an arbitrary motion.

  Further, when the movement of the engagement member with respect to the opening / closing body due to the closing movement of the opening / closing body in contact with the obstacle is a movement of the engagement member rotating about the axis, The movement of the constituent member by the elastic deformation of the elastic member relative to the other constituent member may be rotated about the axis.

  Further, the elastic member in this case may be arbitrary. For example, one end of the elastic member is locked to the one component member, and the other end is locked to the other component member. Torsion coil spring.

  Further, as described above, the engaging member includes an elastic member forming an elastic portion and at least two constituent members connected by the elastic member, and among these constituent members, When one component member is movable with respect to the other component member by elastic deformation of the elastic member, at least one component member among the one component member and the other component member is elastic When the one constituent member moves relative to the other constituent member due to elastic deformation of the member, the one constituent member moves before the engaging portion of the engaging member disengages from the tooth portion of the rotating member. Stop means for stopping is provided.

  According to this, even if the engaging member is configured to include the elastic member forming the elastic portion, the one constituent member moves relative to the other constituent member due to elastic deformation of the elastic member. Sometimes, the movement of the one component member with respect to the other component member is stopped by the stop means before the engagement portion of the engagement member disengages from the tooth portion of the rotating member. It is possible to maintain the engagement portion engaging with the tooth portion of the rotating member, whereby the rotation of the rotating member is stopped by the engaging member, and the opening / closing body and the string-like member are coupled by the mechanical coupling device described above. It is possible to realize that the above-described brake device is turned on by the tension force acting on the string-like member by this connection, and the closing movement of the opening / closing body in contact with the obstacle is stopped.

  Furthermore, in the present invention, in order to provide the elastic portion in the above-described motion load transmission path, the engaging member is rotatable about an axis that is an elastic member that can be elastically deformed. This axis may be an elastic part.

  Further, the shaft support member may be an elastic portion by making the engagement member rotatable about the shaft and supporting the shaft by a shaft support member that can be elastically deformed.

  Furthermore, in the present invention, in order to provide the elastic portion in the motion load transmission path described above, the engaging portion of the engaging member may be formed of an elastic material, and the engaging portion may be used as the elastic portion. Furthermore, it is good also considering this tooth part as an elastic part by forming the tooth part of a rotation member with an elastic material.

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

  Furthermore, the brake device of the stop device according to the present invention may be a single device by itself, or, for example, combined with an electric motor device for opening and closing the opening and closing body to open and close the opening and closing body. It may be a part of an opening / closing machine for movement.

  Further, in the present invention, when the opening / closing body that is being closed is in contact with an obstacle and a tension is applied to the string-like member, the tension is applied to mechanically turn on the brake device to close the opening / closing body. The movement may be stopped, or the intermediate member is actuated by the tension force acting on the string-like member, and the brake device is electrically turned on by the operation of the intermediate member to close the opening / closing body and stop the movement. Etc. may be performed. The intermediate member in the latter case is, for example, an electric switch attached to an immovable member that is immovable with respect to the opening / closing body that opens and closes, and the electric switch is turned on by a tension force acting on the string-like member. Therefore, the brake device may be electrically turned on by the control of the control device to which the ON signal is input, and the opening / closing body may be stopped and the movement of the opening / closing body may be stopped. When the tension of the string-like member disappears and the electrical switch is turned off, the brake device is delayed and electrically turned off by the control of the control device to which this off signal is input, thereby opening and closing The closing movement of the body may be delayed and restarted. Further, when the electrical switch is turned on as described above, the opening / closing body is moved under the control of the control device to which the ON signal is input. An electric motor or the like is operated may be gradually closed moved like the opening and closing member for causing.

  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 signal transmission method of the operation device of the management shutter device may be a wired method or a wireless method.

  According to the present invention, it is possible to obtain an effect that it is possible to avoid the engagement member and the rotation member from being brought into contact with each other and to prevent an excessive load from acting on the engagement member or the like.

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 cross-sectional view of the mechanical coupling device shown in FIG. 4 as seen from the back side of the shutter curtain. FIG. 6 is a view similar to FIG. 4 showing when the shutter curtain abuts against an obstacle. FIG. 7 is a view similar to FIG. 5 illustrating the time of FIG. 6, and is a view illustrating a state where the engaging member and the rotating member are brought into abutting state. FIG. 8 is a view similar to FIG. 5 showing when the contact of the shutter curtain with the obstacle further proceeds, and when the engaging portion of the engaging member and the tooth portion of the rotating member are engaged. FIG. FIG. 9 is a partially enlarged view of FIG. FIG. 10 is a diagram showing an internal structure of the delay device shown in FIGS. 1 and 2. FIG. 11 is a front view showing the internal structure of the automatic closing device shown in FIGS. 1 and 3. FIG. 12 is a plan view showing the internal structure of the automatic closing device. FIG. 13 is a view similar to FIG. 12 showing when the solenoid of the automatic closing device is energized and excited due to a disaster such as a fire. FIG. 14 is a view similar to FIG. 12 showing when energization and excitation of the solenoid of the automatic closing device are stopped. FIG. 15 is a view similar to FIG. 12 showing when the shutter curtain that is being closed and moved is in contact with an obstacle. FIG. 16 is a view similar to FIG. 5 showing an embodiment in which an elastic portion provided in the motion load transmission path is an engagement member side contact portion. FIG. 17 is a view of the engaging member showing an embodiment in which the engaging member includes an elastic member and two components connected by the elastic member. FIG. 18 is a diagram of an engagement member showing another embodiment of FIG. FIG. 19 is a diagram of the engaging member showing an embodiment in which the engaging member is rotatable about an axis that is an elastic portion. FIG. 20 is a diagram of the engaging member showing an embodiment in which the engaging member is rotatable about an axis, and the axis is supported by a shaft supporting member that is an elastic portion. FIG. 21 is a view similar to FIG. 1 showing an embodiment in which the string-like member is folded back by a mechanical coupling device arranged on the shutter curtain. FIG. 22 is a view similar to FIG. 1 showing an embodiment in which a string-like member is housed inside a guide rail for guiding the movement of the shutter curtain.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The opening / closing device according to the present embodiment is a shutter device in which the opening / closing body is a shutter curtain. The shutter device according to the present embodiment is a combined management and disaster prevention shutter device. That is, the shutter device according to the present embodiment has a function as a management shutter device that opens, closes, and stops moving by operating the operation device so that the shutter curtain opens and closes an opening such as an entrance / exit. The shutter curtain that has a disaster prevention function such as smoke is closed and moved in the event of an abnormal situation such as a fire, so that this shutter curtain is fully closed to form a disaster prevention zone in a structure such as a building. And a function as a shutter device for disaster prevention.

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

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

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

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

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

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

  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, a control device 26 is attached to the switch 13, and the control device 26 electrically connects the electric motor device 18 and the brake device 19 of the switch 13. To control. 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 3 shown in FIG. 1, in one building housing 3A, the shutter curtain 1 is opened and moved upward with respect to the doorway 2, closed and moved downward, and the movement is stopped. An operating device 30 is attached to perform the above. 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 brake drum 22 slide in the A ′ direction which is the same direction as the A direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24.

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

  In addition, it is performed by the below-mentioned automatic closing device 32 attached to the opening / closing machine 13 that the load to A direction acts on 31 A of 1st parts. As will be described later, the automatic closing device 32 is a mechanical control device for mechanically controlling the opening / closing machine 13 serving as a driving device for driving the shutter curtain 1.

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

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

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

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

  A swinging member 81 that can swing up and down around a fulcrum shaft 80 extending in the width direction of the shutter curtain 1 is housed inside the fixed portion 70A. As shown in FIG. 6, when the movable part 70B is lifted with respect to the fixed part 70A, the swing member 81 is closed when the shutter curtain 1 is in the closed position, such as the obstacle 34 shown in FIG. When the abutting portion is in contact, the extending portion 79A of the rising portion 79 of the movable portion 70B pushes up the swinging member 81, so that the swinging member 81 swings upward about the fulcrum shaft 80.

  As shown in FIG. 4, the case 33 also shown in FIG. 1 is attached to the fixing portion 70A of the seat plate 1B, and the inside of the case 33 is also shown in FIG. . Inside the case 33, a rotating member 35 having a large number of teeth 35 </ b> A formed in the circumferential direction on the outer peripheral portion and a take-up reel 37, a shaft 41 serving as a fixed shaft fixed to the case 33. The rotating member 35 and the take-up reel 37 are combined and integrated. Further, the lower end of the lock wire 36 is coupled to the take-up reel 37, and the lower portion of the lock wire 36 is taken up by the take-up reel 37 and the upper portion is placed on the upper surface of the case 33. The hole 33A extends upward from the formed hole 33A. The upper end of the locking wire 36 is connected to the rotating member 42 of the delay device 38 shown in FIG.

  Note that one or a plurality of guide rollers may be rotatably housed in the case 33 and guided by the guide rollers so that the lock wire 36 is guided to the take-up reel 37.

  The delay device 38 is installed in the above-described lintel 16 as shown in FIGS. 1 and 2. For this reason, the locking wire 36 is bridged between the shutter curtain 1 on which the take-up reel 37 is arranged and the lintel 16 that is a stationary member with respect to the shutter curtain 1 that opens and closes. The lock wire 36 that is a member and can be wound around the take-up reel 37 is also a flexible string-like member. When the shutter curtain 1 closes and moves downward, the shutter curtain 1 closes and moves while the locking wire 36 is fed out from the take-up reel 37 that rotates in the S direction around the shaft 41 in FIG.

  As shown in FIG. 4, a space 37A is formed inside the take-up reel 37, and a return spring 39, which is partially omitted in FIG. The return spring 39 that is housed and wound around the outer periphery of the shaft 41 that is the rotation center axis of the rotary member 35 and the take-up reel 37 is a mainspring spring, and one end of the return spring 39 is a case. The other end portion is coupled to a take-up reel 37 integrated with the rotating member 35. Therefore, when the rotating member 35 and the take-up reel 37 rotate in the S direction and the shutter curtain 1 closes and moves downward, the take-up reel 37 that rotates to feed the lock wire 36 to the return spring 39. When the rotary member 35 and the take-up reel 37 rotate in the T direction and the shutter curtain 1 opens and moves upward, the take-up reel 37 is moved to the T by the accumulated pressure accumulated in the return spring 39. 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.

  In this embodiment, the return spring 39 by the mainspring spring is housed in a space portion 37A formed inside the take-up reel 37, so that the case 33 has a small size in the thickness direction of the shutter curtain 1 with respect to the case 33. As can be seen from FIG. 4, the thickness in the thickness direction of the shutter curtain 1 with respect to 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 is sufficient. Therefore, the shutter curtain 1 can be adapted to a shutter device having a long opening / closing movement length.

  As shown in FIG. 5, the case 33 accommodates an engaging member 50 that is rotatable in the vertical direction about a shaft 56 provided in the case 33. The engagement member 50 according to the present embodiment is coupled to the first component member 51 having an engagement portion 53 that can be engaged with the tooth portion 35 </ b> A of the rotation member 35, and the first component member 51. The second constituent member 52 has a length in the width direction of the shutter curtain 1. Thus, by making the engaging member 50 a combination of the first constituent member 51 and the second constituent member 52 that are separate parts, the engaging portion 53 that engages with the tooth portion 35A of the rotating member 35 is obtained. The formed first component member 51 can be hardened by a quenching process or the like, so that the teeth of the rotating member 35 can be placed on the engaging part 53 without the entire engaging member 50 being quenched. Similar to 35A, a large strength can be imparted.

  In the present embodiment, as the engaging portion 53 of the engaging member 50, as shown in FIG. 5, the first engaging portion separated in the rotation direction of the engaging member 50 around the shaft 56. 53A and a second engagement portion 53B are provided, and the first engagement portion 53A and the second engagement portion 53B are on an arc or a substantially arc on the center of rotation of the engagement member 50. It has been formed.

  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. The pressing member 54 of this embodiment is formed of a leaf spring bent in a U shape or a V shape.

  As can be seen from FIG. 4, the engaging member 50 is provided with a torsion coil spring 57. One end 57 </ b> A of the torsion coil spring 57 in which the coil portion is wound around the outer periphery of the shaft 56 is locked to the engaging member 50, and the other end 57 </ b> B is locked to the case 33. . Therefore, the engagement member 50 is urged to rotate in the M direction about the shaft 56 by the spring force of the torsion coil spring 57 in FIG. 5, and as a result, shown in FIGS. 5, 7, and 8. As shown, a part of the engaging member 50 is centered on the pressing member 54 provided on the shutter curtain 1, specifically, on the fulcrum shaft 80 provided on the curtain main portion 71 </ b> A of the shutter curtain 1. The pressing member 54 is disposed on a swinging member 81 that can swing up and down.

  For this reason, as will be described later, the shutter curtain 1 and the engagement member 50 are moved in the direction M in FIG. 5 when the shutter curtain 1 that is being closed is in contact with the obstacle 34. Thus, a shutter curtain side contact portion 58 and an engagement member side contact portion 59 that are in contact with each other to rotate in the N direction opposite to the direction are provided. The shutter curtain side contact portion 58 is formed by the pressing member 54, and the engagement member side contact portion 59 is in contact with the second component member 52 of the engagement member 50 in the first engagement member side contact portion 59A. There are two second engagement member side contact portions 59B. The first engagement member side contact portion 59A and the second engagement member side contact portion 59B are separated from each other in the width direction of the shutter curtain 1.

  Further, as shown in FIG. 5, the engagement member 50 is provided with the first engagement member side contact portion 59A and the second engagement member side contact portion 59B. Of these, the portion below the shaft 56, specifically, the second constituent member 52 that forms the engaging member 50 together with the first constituent member 51 overlaps with the first constituent member 51. It can implement | achieve by making the part except an existing part into an L shape or a substantially L shape.

  And since the shutter curtain side contact part 58 is based on the press member 54 formed with the leaf | plate spring, this shutter curtain side contact part 58 is an elastic part which can be elastically deformed.

  In order to urge the engaging member 50 in the M direction around the shaft 56 in FIG. 5, the weight of the engaging member 50 around the shaft 56 without using the torsion coil spring 57. It may be realized only by setting the balance.

  As shown in FIG. 6, the seat plate 1 </ b> B of the shutter curtain 1 during the closing movement comes into contact with the obstacle 34 shown in FIG. 1. As shown in FIG. 6, the fixing portion 70 </ b> A ( 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. The member 50 rotates in the N direction about the shaft 56 in FIG. As a result, the engaging portion 53 of the engaging member 50 is engaged with the tooth portion 35A of the rotating member 35 as shown in FIG. 8 through the state of FIG. And the take-up reel 37 coupled and integrated with the rotating member 35 cannot rotate in the rotating direction (S direction in FIG. 5) when the shutter curtain 1 is moving in the closing direction. The rotating member 35 and the take-up reel 37 are locked.

  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 the present embodiment, the mechanical coupling device 55 for mechanically coupling the locking wire 36 and the shutter curtain 1 is configured by the rotating member 35, the engaging member 50, and the like.

  Next, the delay device 38 shown in FIG. 10 will be described. As described above, the delay device 38 is provided with the rotating member 42 in which the upper end of the locking wire 36 is connected via the spring 43. The turning direction of the turning member 42 is a vertical direction centering on a horizontal central axis 42A. A return spring 100 such as a mainspring spring is disposed behind the rotation member 42. The return force of the return spring 100 rotates the rotation member 42 in the C direction, that is, the lock wire 36 is moved. The rotating member 42 acts so as to rotate the rotating member 42 in the pulling-up direction. The rotating member 42 is formed with an arc-shaped long hole 42B centered on the central axis 42A, and the stop member 101 attached to the machine frame 49 of the delay device 38 is inserted into the long hole 42B. The rotation amount of the rotation member 42 is restricted to a fixed amount by the stop member 101.

  Gear teeth 42C are formed on a part of the outer peripheral portion of the rotating member 42. For this reason, the rotating member 42 is a sector gear formed with a part of the gear teeth 42C. The delay device 38 includes two rotary dampers 102, and these dampers 102 include a pinion gear 103 that meshes with the gear teeth 42 </ b> C of the rotating member 42. A plurality of blades arranged inside the damper 102 are attached to the rotation center shaft 104 of the pinion gear 103 via a one-way clutch, and the pinion gear 103 and the center shaft are rotated by the rotation member 42 rotating in the C direction. When 104 rotates in the E direction, each blade rotates in the viscous fluid filled in the damper 102 via the one-way clutch. For this reason, the rotation member 42 rotates in the C direction at a low speed by the resistance force of the viscous fluid. On the other hand, when the rotating member 42 rotates in the D direction opposite to the C direction and the pinion gear 103 and the central shaft 104 rotate in the F direction, the rotation in this direction is caused by the cutting action of the one-way clutch. Is not transmitted to the blade. For this reason, the rotation member 42 can rotate at high speed in the D direction.

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

  As shown in FIG. 1, an automatic closing device 32 is placed and fixed on the upper part of the switch 13. FIG. 11 is a front view showing the internal structure of the automatic closing device 32, and FIG. 12 is a plan view showing the internal structure of the automatic closing device 32. The automatic closing device 32 automatically closes and moves the shutter curtain 1 stopped at the fully opened position or the halfway position in the opening and closing direction by mechanically controlling the opening and closing machine 13 in the event of a disaster such as a fire. The doorway 2 shown in FIG. 1 is closed by a shutter curtain 1 that is fully closed and has smoke resistance and / or fire resistance. The automatic closing device 32 is attached to the opening / closing machine 13 by a bracket part 110A of FIG. 11 provided in the machine casing 110 of the automatic closing device 32. Further, as shown in FIG. 12, each of the first control wire 111, the second control wire 112, and the third control wire 113 for controlling the automatic closing device 32 up to the automatic closing device 32 is provided. The end of is extended. These control wires 111 to 113 are flexible string-like members, and are also elongated members, like the aforementioned locking wires 36.

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

  As shown in FIGS. 1, 2 and 10, the first control wire 111 extends to the delay device 38, and the end of the first control wire 111 is shown in FIG. As described above, it is connected to the rotating member 42 of the delay device 38.

  As shown in FIGS. 11 and 12, the machine casing 110 of the automatic closing device 32 is provided with two rising portions 110B and 110C facing each other, and formed on these rising portions 110B and 110C. The plate-like slide member 120 of FIG. 13 having a length straddling the two rising portions 110B and 110C is slidably inserted into the holes 110D and 110E. A spring 121 is wound around the outer periphery of the slide member 120. Due to the spring force of the spring 121, a forward force toward the rising portion 110B is constantly acting on the slide member 120. The direction of the forward force is a direction in which the first portion 31A of the lever member 31 provided in the opening / closing machine 13 described in FIG.

  As shown in FIGS. 3 and 11, an operating member 122 is attached to a bent portion 120 </ b> A bent downward at the front end of the slide member 120, and the lever member 31 of FIG. An actuated member 123 is erected and coupled to the first portion 31A. When the slide member 120 moves forward by the spring force of the spring 121, the load in the direction A shown in FIG. 3 is applied to the first portion 31A of the lever member 31 by the operating member 122 coming into contact with the operated member 123. It comes to work. As shown in FIG. 11, in this embodiment, the actuating member 122 is a head 124A of a bolt 124. Therefore, the head 124A is rotated to turn the bolt 124 into a bent portion of the slide member 120. By moving forward and backward with respect to 120A, the distance between the actuating member 122 and the actuated member 123 can be adjusted to an appropriate dimension. After this adjustment, the lock nut 125 screwed into the bolt 124 is rotated, and the lock nut 125 is pressed against the bent portion 120A, whereby the position of the operating member 122 relative to the operated member 123 is adjusted. It can be fixed in an appropriate position.

  As shown in FIG. 12, a solenoid 126 is attached to the machine casing 110 of the automatic closing device 32, and a spring force of a spring 128 is applied to the plunger 127 of the solenoid 126 from the solenoid 126. It always works in the protruding direction. One end of an L-shaped bent lever member 129 that is rotatable about a central axis 129A is connected to the tip of the plunger 127 by a slide-type connecting portion 129B. A roller 130 is rotatably provided at the other end of the bent lever member 129.

  A concave portion 120 </ b> B is formed in the portion of the slide member 120 that faces the roller 130. A portion of the recess 120B on the backward side of the slide member 120 is an inclined surface 120C. In the automatic closing device 32, the spring 131 for applying a turning force in the G direction about the central axis 129A to the bending lever member 129 and the direction in which the plunger 127 protrudes from the solenoid 126 together with the spring 128 described above. And a spring 132 for rotating the bending lever member 129 in the G direction about the central axis 129A. The roller 130, 131, 132 is provided with a spring force so that the roller 130 in a normal state is provided. As shown in FIG. 12, the slide member 120 is fitted into the recess 120 </ b> B, and the forward movement of the slide member 120 by the spring 121 is stopped by this fitting. Thus, the position of the front end of the slide member 120 when the forward movement is stopped by the roller 130 fitted in the recess 120B is the H position among the three positions H, I, and J shown in FIG.

  As shown in FIG. 12, the automatic closing device 32 is provided with an electric switch 135, and this electric switch 135 is provided with an actuator 136 that is biased in a direction protruding from the electric switch 135 by a spring. ing. In addition, a dog member 137 is attached to the slide member 120 at a portion opposite to the concave portion 120 </ b> B, and the actuator 136 is in contact with the dog member 137.

  A connecting member 138 provided with a first connecting portion 138A and a second connecting portion 138B is connected to the slide member 120, and a connecting member 140 is connected to the tip of the plunger 127 of the solenoid 126, as described above. One end of the spring 132 is connected to the connecting member 140. The other end of the first control wire 111 is connected to the rotating member 42 of the delay device 38 shown in FIG. 10, and the first connecting portion of the connecting member 138 of the slide member 120. The end of the second control wire 112 is connected to the connecting member 140 connected to the plunger 127, and the end of the third control wire 113 is connected to the second of the connecting member 138 of the slide member 120. It is connected to the connecting part 138B.

  Further, the second control wire 112 inserted into the outer cable 115 extends to the operating device 30 shown in FIG. 1, and the end of the second control wire 112 protruding from the outer cable 115. A manual operation member such as a lever member arranged in the operation device 30 is connected to the operation device 30. Further, the third control wire 113 inserted into the outer cable 116 also extends to the operation device 30, and the end of the third control wire 113 protruding from the outer cable 116 is also connected to the operation device 30. A manual operation member such as a lever member is disposed.

  As can be seen from the above description, the delay device 38 shown in FIG. 10 includes the locking wire 36 which is the above-described bridging member and also a flexible string-like member, and the switch 13. Since the locking wire 36 and the automatic closing device 32 are relayed to each other, the delay device 38 and the automatic closing device are provided. The device 32 is connected via a first control wire 111.

  Further, on the extension line of the lock wire 36, the opening / closing machine 13 composed of a combination of the electric motor device 18 and the brake device 19 is arranged via the delay device 38, the first control wire 11 and the automatic closing device 32. Will be. In the present embodiment, as will be understood from the following description, a downward tension force acts on the lock wire 36 and the lock wire 36 is pulled downward, thereby turning off the brake device 19 of the switch 13. For this reason, the slide member 120 of the automatic closing device 32 that has been moved forward is moved backward, whereby the brake device 19 is turned on.

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

  In the building where the shutter device according to the present embodiment is installed, when a disaster such as a fire occurs when the shutter curtain 1 is stopped at the fully open position or in the middle of the opening and closing movement direction, the sensor from the sensor that has detected this disaster The solenoid 126 of the automatic closing device 32 is energized and the solenoid 126 is excited by a control device (not shown) to which a signal is input (this control device may also serve as the control device 26 in FIG. 1). The plunger 127 of the solenoid 126 moves backward against the spring force of the spring 128. As a result, the bending lever member 129 rotates against the spring force of the springs 131 and 132 about the central axis 129A in the direction opposite to the G direction in FIG. The state at this time is shown in FIG. When the bending lever member 129 rotates about the central axis 129 </ b> A in the direction opposite to the G direction, the roller 130 of the bending lever member 129 escapes from the recess 120 </ b> B of the sliding member 120. The forward movement is stopped when the front end of the connecting member 138 comes into contact with the above-described rising portion 110B of the machine casing 110 of the automatic closing device 32. The position of the front end of the slide member 120 at this time is the I position which is the foremost position among the three positions H, I and J shown in FIG. 12, as shown in FIG.

  Further, when the slide member 120 moves forward, the actuator 136 of the electric switch 135 is disengaged from the position of the dog member 137 attached to the slide member 120. Therefore, the electric switch 135 is caused by the actuator 136 protruding and moving by the biasing force of the spring. In response to the signal from, the control device stops energizing the solenoid 126.

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

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

  Further, when a person discovers that a disaster such as a fire has occurred, this person is arranged in the operating device 30 shown in FIG. 1 and is connected to the end of the second control wire 112 described above. The second control wire 112 is pulled by a manual operation member such as a lever member. As a result, the plunger 127 of the solenoid 126 moves backward, so that even before the solenoid 126 is energized and excited, the bending lever member 129 is centered on the central axis 129A even when the solenoid 126 is energized and excited. 12, the roller 130 of the bending lever member 129 escapes from the recess 120B of the slide member 120, and the slide member 120 moves forward by the spring force of the spring 121.

  When the shutter curtain 1 reaches the fully closed position as described above 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. Thus, since the third control wire 113 is connected to the slide member 120 of the automatic closing device 32, the slide member 120 is retracted against the spring force of the spring 121. For this reason, the slide member 120 returns from the position shown in FIG. 14 to the initial position where the front end becomes the H position in FIG. Further, when the slide member 120 returns to this initial position, the bending lever member 129 rotates in the direction G in FIG. 12 by the spring force of the springs 131 and 132 about the central axis 129A. As illustrated in FIG. 12, the roller 130 is fitted into the recess 120 </ b> B of the slide member 120, and the slide member 120 stops in a state where the front end of the slide member 120 reaches the H position. Thereby, the automatic closing device 32 returns to the initial state before the occurrence of a disaster such as a fire.

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

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

  When the shutter device according to the present embodiment is a shutter device for disaster prevention and the shutter curtain 1 is closing and moving, in other words, the automatic closing device 32 is in the state shown in FIG. 14 and the shutter curtain 1 is closed. When the obstacle 34 shown in FIG. 1 exists on the lower side of the shutter curtain 1 in the closing movement direction when moving, the shutter curtain 1 is moved during the closing movement of the shutter curtain 1. In other words, the curtain sub-portion 71B arranged at the front end portion on the closing side is in contact with the obstacle 34 by the movable portion 70B of FIG. 4 forming the lower portion of the seat plate 1B of the shutter curtain 1. Thus, the descent of the movable part 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. Due to the relative rise of the curtain sub-portion 71B (movable portion 70B) with respect to the curtain main portion 71A generated by this lowering, as shown in FIG. 6, the swing member 81 disposed inside the fixed portion 70A is moved. It swings upward about the fulcrum shaft 80. Accordingly, the engaging member 50 constituting the mechanical coupling device 55 described above is rotated in the N direction of FIG. 5 by the pressing member 54 provided on the swinging member 81, so that the state of FIG. After that, the state shown in FIG. 8 is obtained, and the engaging portion 53 of the engaging member 50 engages with the tooth portion 35 </ b> A of the rotating member 35.

  Accordingly, the rotating member 35 and the take-up reel 37 that have been rotated in the S direction in FIG. 5 when the shutter curtain 1 is closed and moved cannot be rotated in this S direction. The locking wire 36 fed out from 37 is coupled by a mechanical coupling device 55 having the rotating member 35 and the engaging member 50 as constituent elements. Therefore, a downward tension force due to the weight of the shutter curtain 1 excluding the movable portion 70B, that is, the weight of the curtain main portion 71A, acts on the lock wire 36.

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

  Further, even if the obstacle 34 is a hard object that does not dent or deform hardly, when the engaging member 50 is rotated in the N direction of FIG. 5 by the pressing member 54 of the swinging member 81, it is shown in FIG. As shown, the first engaging portion 53A of the rotating member 35 is first of the first engaging portion 53A and the second engaging portion 53B that are provided as two engaging portions 53 on the engaging member 50. The second engaging portion 53B is engaged with the tooth portion 35A of the rotating member 35 after engaging with the tooth portion 35A. Of these engagements, at least the engagement of the first engagement portion 53A with the tooth portion 35A is performed on the engagement member 50 in the longitudinal direction of the engagement member 50 as shown in FIG. Of the first engagement member side contact portion 59A and the second engagement member side contact portion 59B that are provided as two engagement member side contact portions 59 apart from each other, the rotation center axis of the engagement member 50 The first engaging member side contact portion 59A located far from the shaft 56 is pushed up by the pressing member 54 serving as the shutter curtain side contact portion 58.

  The interval between the first engaging portion 53A and the second engaging portion 53B is the same as or substantially the same as the interval (tooth pitch) between the teeth 35A of the rotating member 35, or between the teeth 35A. Since it is a dimension that is an integer multiple of 2 or substantially an integral multiple of the interval dimension, when the first engagement portion 53A is engaged with the tooth portion 35A, the second engagement portion 53B is also engaged with the tooth portion 35A. It comes to match.

  FIG. 9 shows a partially enlarged view of FIG. 8 when the first engaging portion 53A and the second engaging portion 53B are engaged with the tooth portion 35A of the rotating member 35 as described above. When the first engaging portion 53A is engaged with the tooth portion 35A of the rotating member 35 and the second engaging portion 53B is engaged with the tooth portion 35A of the rotating member 35, or the first engaging portion 53A is rotated. After engaging the tooth portion 35A of the member 35 and engaging the second engaging portion 53B with the tooth portion 35A of the rotating member 35, or the first engaging portion 53A engages with the tooth portion 35A of the rotating member 35. And before the second engaging portion 53B engages with the tooth portion 35A of the rotating member 35, the second engaging member side contact of the engaging member 50 as shown in FIG. The part 59B comes into contact with the pressing member 54 and is pushed up. That is, the pushing-up of the engagement member side contact portion 59 of the engagement member 50 by the pressing member 54 is performed by shifting from the first engagement member side contact portion 59A to the second engagement member side contact portion 59B. This push will be done in two stages.

  For this reason, in FIG. 9, the rotation of the engagement member 50 in the N direction is continued, whereby the first engagement portion 53A of the engagement member 50 is disengaged from the engagement with the tooth portion 35A of the rotation member 35. Even so, the second engaging portion 53B continues to engage with the tooth portion 35A of the rotating member 35, and the second engaging portion 53B rotates the rotating member 35 in the T direction. The rotation in the T direction is the rotation in the direction in which the take-up reel 37 winds the lock wire 36.

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

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

  When the locking wire 36 is pulled downward as described above, the rotating member 42 of the delay device 38 shown in FIG. 10 rotates in the direction D in FIG. 10 against the return spring 100 described above. The amount of rotation corresponds to the length of the arc-shaped long hole 42B in which the stop member 101 is inserted. The rotation at this time rotates the pinion gear 103 of the rotary damper 102 in the F direction. However, the rotation of the pinion gear 103 in the F direction does not generate a resistance force due to the viscous fluid in the damper 102 as described above. Therefore, the rotation member 42 is rotated in the direction D at a high speed by the lock wire 36, and the first control wire 111 having one end connected to the rotation member 42 is pulled. become.

  The lock wire 36 of this embodiment is not directly connected to the rotating member 42, and a spring serving as an impact load buffering elastic member is provided between the lock wire 36 and the rotating member 42. Since 43 is interposed, even if the locking wire 36 is suddenly pulled downward, the pulling force can be relaxed and transmitted to the rotating member 42.

  Even when the amount of rotation of the rotating member 42 in the D direction reaches a limit value defined by the stop member 101 inserted in the arc-shaped elongated hole 42B, A large impact load can be prevented from propagating between the locking wire 36 and the rotating member 42.

  When the first control wire 111 is pulled as described above, the other end of the first control wire 111 is placed on the slide member 120 of the automatic closing device 32 in the state of FIG. 14 as described above. Since they are connected, the slide member 120 moves backward against the spring 121. The amount by which the first control wire 111 is pulled and the amount by which the slide member 120 is retracted is the amount defined by the length of the long hole 42B of the rotating member 42 shown in FIG. The slide member 120 that has reached the I position shown in FIG. 14 does not move back to the retreat limit where the position of the front end of the slide member 120 becomes the H position of FIG. 12, and the position of the front end becomes the J position, Stop at an intermediate position between the H and I positions. The state at this time is shown in FIG. At this time, the position of the slide member 120 with which the roller 130 of the bending lever member 129 is in contact has moved in the length direction of the slide member 120, which is the slide direction of the slide member 120, as compared with the case of FIG. The roller 130 is still in contact with the inclined surface 120C described above.

  Further, since the position of the front end of the slide member 120 at this time is retreated from the I position to the J position, the first member 31A of the lever member 31 of FIGS. 3 and 11 is moved by the operating member 122 of the slide member 120. The load that has been pressed in the direction A in FIG. 3 is released. For this reason, the brake device 19 of the switch 13 is mechanically switched from off to on. When the brake device 19 is turned on, the drive shaft 14 of the opening / closing machine 13 cannot be rotated, so that the winding shaft 11 to which the upper end of the shutter curtain 1 is coupled cannot be rotated.

  Therefore, the shutter curtain 1 that is in contact with the obstacle 34 closes and stops moving at the contact position. This stop is performed by the mechanical coupling device 55 described above, the delay device 38 that is also mechanical, the slide member 120 that is a member of the automatic closing device 32 that slides mechanically, and the mechanically turned on. It is performed by the mechanical structure comprised by the brake device 19 etc. of the opening / closing machine 13 which becomes. For this reason, after the shutter curtain 1 is closed and started moving, the building in which the shutter device according to the present embodiment is installed is blacked out due to the occurrence of a disaster such as a fire or other reasons. In addition, the shutter curtain 1 in contact with the obstacle 34 during the closing movement can be stopped.

  As described above, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34 and the brake device 19 of the switch 13 is turned on, the obstacle sub-portion of the shutter curtain 1 is removed when the obstacle 34 is removed. Since 71B descends, the coupling between the shutter curtain 1 and the locking wire 36 by the mechanical coupling device 55 is released. As a result, the tension force acting on the locking wire 36 disappears. Therefore, the rotation member 42 of the delay device 38 acting on the return force by the return spring 100 in FIG. The slide member 120 of the automatic closing device 32 that has been pulled in the backward direction by the first control wire 111 due to this rotation is moved from the position J shown in FIG. 15 to the position shown in FIG. The spring 121 moves forward to the I position indicated by. 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 resumes its closed movement.

  When the rotation member 42 of the delay device 38 rotates in the direction C in FIG. 10, the pinion gear 103 of the rotary damper 102 rotates in the E direction. Will occur. For this reason, the position of the front end of the slide member 120 shifts from the J position shown in FIG. 15 to the I position shown in FIGS. 12 and 14, and the brake device 19 of the switch 13 is switched from ON to OFF by this shift. This is not done instantaneously due to the delay action of the damper 102. 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.

  The rotating member 42 of the delay device 38 in FIG. 10 rotates in the D direction even when the shutter curtain 1 is in contact with the obstacle 34 when the shutter curtain 1 is closed and moved as the shutter curtain 1 of the management shutter device described above. The first control wire 111 is pulled by the movement, and the automatic closing device 32 at this time is in the state shown in FIG. 12, and the roller 130 of the bending lever member 129 is fitted into the recess 120 </ b> B of the slide member 120. As a result, the slide member 120 does not move back slightly or at all, so that the automatic closing device 32 does not change.

  In addition, the delay device 38 is provided with an electric switch that operates by rotating the rotating member 42 in the D direction, and when the electric switch is operated, a signal from the electric switch is input in the control of FIG. By electrically driving and controlling the switch 13 by the device 26, the shutter curtain 1 may be reversed and raised by a certain amount after being brought into contact with the obstacle 34 and then stopped. In this case, a signal from a sensor that detects a disaster such as a fire is input to the control device, and the shutter device according to the present embodiment becomes the shutter device for disaster prevention. When the curtain is closed and moved, the signal from the sensor is input to the control device 26 to invalidate the signal from the electric switch.

  Next, the reason why the shutter curtain side contact portion 58 by the pressing member 54 provided on the shutter curtain 1 as described above is an elastic portion by a leaf spring as described above will be described.

  In the operation of the shutter device according to the present embodiment described above, when the shutter device becomes a disaster prevention shutter device or a management shutter device and the shutter curtain 1 is closed and moved, the shutter curtain 1 is obstructed. 5, the first engagement member side contact portion 59 </ b> A of the engagement member 50 is pushed up by the pressing member 54 which is the shutter curtain side contact portion 58 as described above. The first engagement portion 53A of the engagement member 50 that rotates in the N direction around the center 56 is about to engage with the tooth portion 35A of the rotation member 35. Due to the rotation timing, as shown in FIG. 7, the tip of the first engagement portion 53A and the tip of the tooth portion 35A come into contact with each other. 35 is a butted state, these engagement members 50 and the rotary member 35 is likely to speak become deadlocked.

  However, in the present embodiment, as described above, since the pressing member 54 serving as the shutter curtain side contact portion 58 is formed of a leaf spring, the shutter curtain side contact portion 58 can be elastically deformed. Therefore, when the distal end of the first engaging portion 53A and the distal end of the tooth portion 35A come into contact with each other and the engaging member 50 and the rotating member 35 are in abutting state, the abutting action acts on the engaging member 50. When the shutter curtain side contact portion 58 is elastically deformed by the load to be applied, the engaging member 50 is rotated slightly back in the M direction in FIG. 5 and then rotated in the N direction. Then, the engaging member 50 is slightly rotated backward with respect to the rotating member 35 and then rotated forward, whereby the first engaging portion 53A of the engaging member 50 continues to rotate. The tooth 35A of the rotating member 35 is engaged.

  For this reason, according to this embodiment, the front end of the first engaging portion 53A of the engaging member 50 and the front end of the tooth portion 35A of the rotating member 35 come into contact with each other, and the engaging member 50 and the rotating member 35 are in contact with each other. It is possible to avoid this, and it is possible to eliminate an excessive load generated in the engaging member 50 or the like when this abutting state occurs.

  In the present embodiment, the engaging member 50 rotates about the shaft 56, and a movement load for performing this rotating movement is applied to the shutter curtain 1 provided on the shutter curtain 1. In order to transmit from the contact portion 58 to the tooth portion 35A of the rotating member 35 through the engaging member 50, a path passing through the shutter curtain side contact portion 58, the engaging member 50, and the tooth portion 35A of the rotating member 35 is It is an exercise load transmission path.

  In the embodiment described with reference to FIGS. 4 to 9, an elastic portion that is elastically deformed is provided in the motion load transmission path so as to avoid the engagement member 50 and the rotation member 35 from being brought into contact with each other. At the same time, the elastic portion is provided at the position of the shutter curtain side abutting portion 58 serving as the pressing member 54.

  Next, an embodiment will be described in which an elastic portion that is elastically deformed in order to avoid the engagement member 50 and the rotating member 35 from being brought into contact with each other is provided at another location in the motion load transmission path.

In the embodiment of FIG. 16, of the first engagement member side contact portion 159 </ b> A and the second engagement member side contact portion 159 </ b> B provided as two engagement member side contact portions 159 on the engagement member 150. The first engaging member side contact portion 159A is formed by a leaf spring 60 bent into a J-shape or a substantially J-shape. For this reason, in this embodiment, the first engagement member side contact portion 159A is an elastic portion that can be elastically deformed. In this embodiment, the pressing member 54 ′ serving as the shutter curtain side contact portion 58 is formed of a hard material such as a normal metal.
Also in this embodiment, of the first engaging portion 153A and the second engaging portion 153B provided as two engaging portions 153 on the engaging member 150, the tip of the first engaging portion 153A and the rotating member 35 are provided. When the engaging member 150 and the rotating member 35 are in abutting state due to contact with the tip of the tooth portion 35A, the first engaging member side abutting is caused by the load acting on the engaging member 150 due to the abutting. Since the portion 159A is elastically deformed, this abutting state can be avoided, and the first engaging portion 153A of the engaging member 150 and the tooth portion 35A of the rotating member 35 can be engaged.

  The engagement member 250 of the embodiment of FIG. 17 includes a first component member 251 provided with a first engagement portion 253A and a second engagement portion 253B, a first engagement member-side contact portion 259A, and a second engagement. The second component member 252 provided with the joint member side contact portion 259B and the first component member 251 and the second component member 252 that are rotatable about the shaft 56 are connected in the rotation direction. The torsion coil spring 254 is formed. One end 254A of the torsion coil spring 254, which is an elastic member, is locked to the first component 251 and the other end 254B is locked to the second component 252.

  For this reason, the elastic part that is elastically deformed in this embodiment is a torsion coil spring 254 that is an elastic member. The first component member 251 is deformed relative to the second component member 252 by the elastic deformation of the torsion coil spring 254. And can be elastically rotated about the shaft 56.

  Further, one of the first component member 251 and the second component member 252 is formed with an arc-shaped elongated hole 255 centered on the shaft 56, and the other is attached with a pin 256 inserted into the elongated hole 255. It has been. For this reason, the range in which the first component member 251 rotates about the shaft 56 with respect to the second component member 252 is defined.

  In this embodiment, when the front end of the first engagement portion 253A of the engagement member 250 and the front end of the tooth portion 35A of the rotation member 35 come into contact with each other, the engagement member 250 and the rotation member 35 are brought into abutting state. The first component member 251 avoids this abutting state by elastically rotating around the shaft 56 with respect to the second component member 252 by the elastic deformation of the torsion coil spring 254, and the first engagement portion 253A and the tooth portion 35A are engaged with each other.

  Further, when the shutter curtain 1 is closed and moved, the rotating member 35 shown in FIG. 5 rotates in the S direction of FIG. 5, and when the shutter curtain 1 contacts the obstacle 34, Although the engaging member 250 must stop the rotation of the rotating member 35, in this embodiment, the first component member 251 rotates around the shaft 56 with respect to the second component member 252 by the long hole 255 and the pin 256. Stop means 257 for defining the moving range is configured, and before the first engaging portion 253A of the engaging member 250 is disengaged from the tooth portion 35A of the rotating member 35 rotating in the S direction, Since the one component member 251 stops rotating about the shaft 56, the engagement of the first engaging portion 253A and the tooth portion 35A can be maintained and the rotation of the rotating member 35 in the S direction can be stopped. .

  The engagement member 350 of the embodiment of FIG. 18 includes a first component member 351 provided with a first engagement portion 353A and a second engagement portion 353B, a first engagement member side contact portion 359A, and a second engagement. In order to connect the second component member 352 provided with the combined member side contact portion 359B and the first component member 351 and the second component member 352 that are rotatable about the shaft 56, It is formed by an elastic member 354 made of thick rubber or the like interposed between the first component member 351 and the second component member 352. The shaft 56 also passes through the elastic member 354 forming the elastically deformable elastic portion of this embodiment.

  One of the first component member 351 and the second component member 352 has a stop means for defining a range in which the first component member 351 rotates about the shaft 56 with respect to the second component member 352. A stop member 355 which is 357 is attached.

  For this reason, also in this embodiment, the engaging member 350 and the rotating member 35 are brought into abutting state when the tip of the first engaging portion 353A of the engaging member 350 abuts the tip of the tooth portion 35A of the rotating member 35. The first constituent member 351 is elastically rotated about the shaft 56 with respect to the second constituent member 352 by the elastic deformation of the elastic member 354 so as to avoid this abutting state. Before the first engaging portion 353A is disengaged from the tooth portion 35A of the rotating member 35 that rotates in the S direction, the stop member 357 causes the first component member 251 to engage with the mating portion 353A and the tooth portion 35A. Therefore, the rotation of the rotating member 35 in the S direction can be stopped by maintaining the engagement between the first engaging portion 353A and the tooth portion 35A.

  In the embodiment of FIG. 19, in order to rotatably dispose the engaging member 450 in the case 33, a shaft 456 serving as a rotation center axis of the engaging member 450 is provided in the case 33 and the shaft 456 is provided. The elastic member can be elastically deformed by deformation, and the elastic portion is provided by the shaft 456 in the above-described motion load transmission path.

  Further, in the embodiment of FIG. 20, in order to arrange the engaging member 550 in the case 33 so as to be rotatable, a shaft 556 serving as a rotation center axis of the engaging member 550 is provided in the case 33, and this shaft 556 is supported on the case 33 via an elastically deformable shaft support member 557. For this reason, in this embodiment, the shaft support member 557 is an elastic portion.

  In the embodiment of FIGS. 19 and 20, the tips of the engaging portions of the engaging members 350 and 450 and the tips of the tooth portions 35A of the rotating member 35 come into contact with each other so that the engaging members 350 and 450 and the rotating member 35 abut against each other. In the embodiment of FIG. 19, the state is due to elastic deformation of the shaft 456, and in the embodiment of FIG. 20, one side of the shaft support member 557 is compressed and elastically deformed with respect to the shaft 556, and the other side is The shaft 556 is moved by the tensile elastic deformation to be avoided, and the engaging portions of the engaging members 350 and 450 and the tooth portion 35A of the rotating member 35 are engaged.

  Note that a hollow portion 557A is formed in the shaft support member 557 of FIG. 20 so that the one side is easily compressed and elastically deformed.

  Next, the embodiment shown in FIGS. 21 and 22 will be described. 21 and 22, the switch 13 and the automatic closing device 32 shown in FIG. 1 are omitted from the drawing.

  In the embodiment described so far, the winding device 40 having the winding reel 37 for winding the locking wire 36 that is a string-like member has been arranged on the shutter curtain 1, but the embodiment shown in FIG. The winding device 640 in the form is disposed on the lintel 16 that is a stationary member with respect to the shutter curtain 1 that opens and closes. In this embodiment, the string-like member 636 extending from the delay device 38 arranged in the lintel 16 to the winding device 640 is attached to the fixing portion 70 </ b> A of the seat plate 1 </ b> B of the shutter curtain 1. By being folded inside the case 633, it is wired in a U-shape.

  As in the above-described embodiment, the case 633 accommodates an engaging member constituting the mechanical coupling device and a rotating member having a tooth portion with which the engaging portion of the engaging member engages. The rotating member is rotated by a string-like member 636 that moves relative to the shutter curtain 1 when the shutter curtain 1 opens and closes. In order to rotate the rotating member by the string-like member 636 that moves relative to the shutter curtain 1 when the shutter curtain 1 is opened and closed as described above, for example, the string-like member 636 is a roller chain. The rotating member and the sprocket wheel on which the roller chain is stretched may be combined and integrated. Thereby, when the shutter curtain 1 is opened and closed, the rotating member having the tooth portion is rotated, and the shutter curtain 1 being moved in contact with the obstacle 34 makes the engaging portion of the engaging member the tooth portion. It can be made to engage with the tooth | gear part of the rotation member which has these.

  Further, in the embodiment of FIG. 22, no winding device is used. Further, the string-like member 736 of this embodiment is inserted into the guide rail 6 that guides the opening / closing movement of the shutter curtain 1. And the upper end of the string-like member 736 is connected to the delay device 38 arrange | positioned at the lintel 16 similarly to the previous embodiment, and the lower end is connected to the stationary member with the guide rail 6. FIG. The shutter curtain 1 is provided with a first rotating member 701, a second rotating member 702, and a third rotating member 703 around which a string-like member 736 is wound, and the second rotating member 702 is a seat plate 1B of the shutter curtain 1. Is housed in a case 733 attached to the fixed portion 70A. In addition, in the case 733, as in the above-described embodiment, an engaging member constituting the mechanical coupling device and a rotating member having a tooth portion with which the engaging portion of the engaging member engages are accommodated. The rotating member having the tooth portion is coupled and integrated with the second rotating member 702.

  The string-like member 736 is, for example, a roller chain, and the first rotating member 701, the second rotating member 702, and the third rotating member 703 are, for example, sprocket wheels. When the shutter curtain 1 is moved to open and close, the rotating member having the tooth portion and the second rotating member 702 rotate as a unit, and the shutter curtain 1 in the closed movement comes into contact with the obstacle 34 to be engaged. The engaging part of the combined member can be engaged with the tooth part of the rotating member having the tooth part.

  As can be seen from the embodiment of FIGS. 21 and 22, the winding device for winding the string-like member for turning on the brake device 19 with tension is not necessarily arranged on the shutter curtain 1, and This winding device may be omitted.

  In the embodiment described above, the delay device 38 is disposed in the lintel 16. However, the delay device is disposed in proximity to the automatic closing device 32 shown in FIGS. The closing device 32 and the delay device 38 may be combined to form a part of a composite device. Further, the delay device 38 may be omitted.

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

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is an opening / closing body 13 Opening / closing machine 18 Electric motor apparatus 19 Brake apparatus 32 Automatic closing apparatus 35 Rotating member 35A Tooth part 36 Locking wire which is a string-like member 37 Take-up reel 50,150,250,350,450, 550 engaging member 51, 52, 251, 252, 351, 352 constituent member of engaging member 53, 153, 253, 353 engaging portion 55 mechanical coupling device 56 rotation center axis of engaging member 58 opening / closing body side contact Shutter curtain side contact part 59, 159, 259, 359 which is a part engaging member side contact part 254 Torsion coil spring which is an elastic member 257, 357 Stop means 354 Elastic member 456 Elastically deformable shaft 557 Shaft support member 636, 736 string member

Claims (10)

A brake device for stopping and moving the openable / closable opening / closing body that can be opened and closed by turning it on and off, and a tension force acts when the opening / closing body in the closed movement comes into contact with an obstacle. A string-like member that turns on the brake device to stop the movement of the opening-closing body, and the opening-closing body is disposed on the opening-closing body, and the opening-closing body and the string-like member are brought into contact with the obstacle A mechanical coupling device that mechanically couples the string-like member to apply the tension force,
This mechanical coupling device includes a rotating member that rotates when the opening / closing body moves and an engaging portion that can be engaged with the tooth portion, and the opening / closing body touches the obstacle. The engagement portion includes an engagement member that engages with the tooth portion by performing a movement with respect to the opening / closing body when contacted, and the rotation by the engagement of the engagement portion with the tooth portion In the opening / closing body stop device of the opening / closing device that mechanically couples the opening / closing body and the string-like member by stopping the rotation of the member,
An elastic portion that is elastically deformable is provided in a motion load transmission path for transmitting the motion load of the engagement member from the opening / closing body to the tooth portion of the rotating member via the engagement member. An opening / closing body stop device for an opening / closing device.   2. The opening / closing body stop device for an opening / closing apparatus according to claim 1, wherein the opening / closing body and the engagement member are engaged with an opening / closing body-side contact portion that contacts the opening / closing body in order to move the engagement member by the opening / closing body. An opening / closing body stop device for an opening / closing device, comprising: a member side contact portion; and the opening / closing body side contact portion serving as the elastic portion.   2. The opening / closing body stop device for an opening / closing apparatus according to claim 1, wherein the engaging member is provided with the elastic portion.   4. The opening / closing body stop device for an opening / closing apparatus according to claim 3, wherein the opening / closing body and the engagement member are engaged with an opening / closing body side contact portion that contacts the opening / closing body in order to move the engagement member by the opening / closing body. An opening / closing body stop device for an opening / closing device, characterized in that a member-side contact portion is provided, and the engagement member-side contact portion is the elastic portion.   4. The opening / closing body stop device for an opening / closing device according to claim 3, wherein the engaging member includes an elastic member forming the elastic portion and at least two components connected by the elastic member. An opening / closing body stopping device for an opening / closing device, characterized in that one of the components is movable with respect to the other component by elastic deformation of the elastic member.   6. The opening / closing body stopping device for an opening / closing device according to claim 5, wherein the front engaging member is rotatable about an axis, and the one constituent member is elastically deformed with respect to the other constituent member. The opening / closing body stop device of the opening / closing device is characterized in that the movement by the rotation is about the axis.   7. The opening / closing body stop device for an opening / closing device according to claim 6, wherein one end of the elastic member is locked to the one component member, and the other end is locked to the other component member. An opening / closing body stopping device for an opening / closing device, characterized by being a torsion coil spring.   The opening / closing body stop device for an opening / closing device according to any one of claims 5 to 7, wherein at least one of the one constituent member and the other constituent member has an elastic deformation of the elastic member. When the one constituent member moves relative to the other constituent member, the one constituent member moves before the engaging portion of the engaging member disengages from the tooth portion of the rotating member. An opening / closing body stopping device for an opening / closing device, characterized in that stop means for stopping is provided.   2. The opening / closing body stopping device for an opening / closing device according to claim 1, wherein the front engagement member is rotatable about an axis that is an elastic member that can be elastically bent and deformed, and the axis serves as the elastic portion. An opening / closing body stopping device for an opening / closing device.   2. The opening / closing body stopping device for an opening / closing device according to claim 1, wherein the front engagement member is rotatable about a shaft, and the shaft is supported by a shaft support member that can be elastically deformed. An opening / closing body stopping device for an opening / closing device, characterized by being an elastic part.

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