JP6215705B2 - Opening / closing member stop device for opening / closing device - Google Patents

Description

  The present invention relates to an opening / closing body stop device of an opening / closing device for stopping the closing movement when the opening / closing body being closed contacts with an obstacle. 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, which is an open / close device and is an open / close body in which the shutter curtain moves open / close, the shutter curtain for opening / closing the opening such as the entrance / exit is opened and moved by operating the operation device. Close, move, 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. Devices for executing this stop are disclosed in Patent Document 1 and Patent Document 2 below.

  These devices include a shutter curtain that opens and closes, a string-like member that is coupled to the shutter curtain when the shutter curtain comes into contact with an obstacle during the closing movement, and a tension force that acts on the string-like member. And a brake device that turns on and stops the closing movement of the shutter curtain. When the shutter curtain comes into contact with an obstacle in the middle of the closing movement, the shutter curtain and the string-like member are coupled, whereby the brake device is turned on by the tension generated in the string-like member, and the closing movement of the shutter curtain is stopped.

  Further, in Patent Document 3 below, even if the obstacle is a hard object that does not deform or hardly deform even when the shutter curtain comes into contact, and / or when the shutter curtain comes into contact with the obstacle, and / or A tension device is shown that can pull the string-like member in a direction to turn on the brake device after contact. According to this pulling device, even if the obstacle is hard, the string-like member can be pulled in the direction in which the brake device is turned on, as in the case where the obstacle is a soft one that dents and deforms. For this reason, the shutter curtain that is in contact with the obstacle during the closing movement can be stopped more reliably.

The pulling device shown in Patent Document 3 includes two lever members arranged on both sides of the string-like member so as to sandwich the string-like member, and the shutter curtain is closed and moved. When it comes into contact with the obstacle, the string member is clamped by these lever members, and by this clamping, the linear part of the string member is transformed into a non-linear part, The string-like member is pulled in the direction to turn on the brake device.
JP 2000-96961 A JP 2009-13647 A JP 2010-59767 A (paragraphs 0133 to 0144, especially 0138, FIGS. 15 and 21)

  However, according to the tension device shown in Patent Document 3, the string-like member is clamped by two lever members in order to pull the string-like member in the direction in which the brake device is turned on. The member receives a clamping force from the two lever members, and the string-like member when receiving this clamping force is pulled in a direction to turn on the brake device, and therefore receives a rubbing force from the lever member. Become.

  An object of the present invention is to provide an opening / closing body stop device for an opening / closing device in which a load such as a clamping force or a rubbing force does not act on a string-like material when pulled in a direction to turn on a brake device.

  An opening / closing body stop device for an opening / closing apparatus according to the present invention includes: an opening / closing body that opens and closes; a string-like member that is coupled to the opening / closing body when the opening / closing body contacts an obstacle during the closing movement; A brake device which is turned on by tension force acting on the string-like member to stop the closing movement of the opening / closing body, and the string-like member simultaneously with and / or after the contact of the opening / closing body with the obstacle A pulling device for pulling the brake device in a direction in which the brake device is turned on, and an opening / closing body stop device for the opening / closing device, the winding device winding up the string-like member freely. The pulling device is a device that causes the winding device, which is a device for paying out the string-like member when the opening / closing body is closed, to perform an operation of winding the string-like member. To do.

  The opening / closing body stop device of the opening / closing device has a winding device that winds the string-like member so as to be freely drawn out, and the pulling device is a device for feeding the string-like member when the opening / closing body is closed. Since it is a device that causes the winding device to wind the string-like member, when the string-like member is pulled in the direction to turn on the brake device, only the pulling force due to winding is applied to this string-like material. Since it acts and loads such as clamping force and rubbing force do not act, the safety of the string-like member can be ensured.

  In the opening / closing body stop device of the opening / closing device, the winding device has a take-up reel that winds the string-like member so that the string-like member can be unwound freely. It may be a device that rotates the winding reel that is a member to wind the string-like member.

  In addition, the winding device includes a rotating member having a plurality of teeth formed on the outer peripheral portion and coupled and integrated with the winding reel, and rotates around the axis of the opening / closing body. Thus, an engaging member that engages with the tooth portion of the rotating member is provided, and the engaging member engages with the tooth portion of the rotating member, so that the take-up reel rotates to take up the string-like member. It may be.

  The winding reel and the rotating member may be combined and integrated by combining the winding reel and the rotating member manufactured as separate parts, respectively, or by winding a part of one part. A reel may be used and the other part may be a rotating member.

  Further, the engaging member can be rotated around the shaft even after engaging with the tooth portion of the rotating member, and by this rotation, the take-up reel can take up the string-like member. Good.

  The opening / closing body includes an opening / closing body main portion and an opening / closing body sub-portion that moves relative to the opening / closing body main portion when the opening / closing body abuts against an obstacle during the closing movement. A body movable part, a first movable member disposed on the opening / closing body main part side, a second movable member disposed on the side opposite to the opening / closing body main part with respect to the first movable member, An elastic member disposed between the first movable member and the second movable member, and the elastic member is elastically deformed and deformed when the opening / closing body abuts against an obstacle. The joint member may be rotated about the axis even after engaging the tooth portion of the rotating member.

  Further, the engaging member is provided with a plurality of engaging portions on an arc or substantially arc on the axis, and these engaging portions are sequentially engaged with the tooth portions of the rotating member, The take-up reel may be rotated to take up the string-like member.

  Further, the rotation of the engaging member about the shaft when the opening / closing body abuts on the obstacle is at least two stages of rotation, and the take-up reel is laced by at least two stages of rotation. You may make it perform rotation which winds up a shape member.

  The opening / closing body includes an opening / closing body main portion and an opening / closing body sub-portion that moves relative to the opening / closing body main portion when the opening / closing body abuts against an obstacle during the closing movement. The engagement member may be rotated at least in two stages around the axis by the movement of the body sub part.

  Furthermore, the engaging member is provided with a plurality of places where a push-up force acts in order when the open / close body sub-part moves with respect to the open / close body main part, and the engagement member is engaged by the push-up force acting in order on these places. The joint member may rotate at least two stages around the axis.

  Further, the respective distances from the shaft for the plurality of locations are different, and the shaft for the location where the pushing force is applied last is more than the distance from the shaft for the location where the pushing force is applied first. You may shorten the distance from.

  According to this, the winding force of the string-like member by the take-up reel can be increased stepwise by the pushing force acting on each part in turn, whereby the string-like member turns on the brake device. The length pulled in the direction can be made sufficiently long.

  An opening / closing body stopping device for an opening / closing apparatus according to the present invention includes: an opening / closing body that opens and closes; and a string-like member that is coupled to the opening / closing body when the opening / closing body contacts an obstacle during the closing movement. A brake device that is turned on by a tension force acting on the string-like member to stop the closing movement of the opening / closing body, and the string that is simultaneously with and / or after the contact of the opening / closing body with the obstacle An opening / closing body stopping device for an opening / closing device comprising a tension device for pulling the shaped member in a direction to turn on the brake device, wherein at least a part of the string-like member is stretched in a straight line. It has two passed rotating members, and the pulling device is a device that makes the straight portion of the string-like member non-linear, and the pulling device is the straight line of the string-like member Press the part The moving portion is configured to include a moving member that is non-linear, and the portion that pressurizes the linear portion of the moving member is a rotatable pressing member. .

  The pulling device in the opening / closing body stopping device of the opening / closing device is a device that makes the linear portion of the string-like member non-linear, and this pulling device pressurizes the linear portion of the string-like member. The linear portion of the lever is configured to include a moving member, and the portion that pressurizes the linear portion of the moving member is a rotatable pressing member. When the moving member is pulled in the direction to turn on the brake device, the pressurizing member will rotate, so that no load such as clamping force or rubbing force acts on the string-like material, The safety of the member can be ensured.

  The moving member may be a swinging member that swings about an axis, or a sliding member that slides linearly, and may be a member that performs arbitrary motion.

  Furthermore, the opening / closing body stop device of the opening / closing apparatus according to the present invention includes an opening / closing body that opens and closes, and a string-like member that is coupled to the opening / closing body when the opening / closing body contacts an obstacle during the closing movement. A brake device that is turned on by a tension force acting on the string-like member to stop the closing movement of the opening / closing body, and the string that is simultaneously with and / or after the contact of the opening / closing body with the obstacle An opening / closing body stop device for an opening / closing device configured to include a tension device for pulling the shape member in a direction in which the brake device is turned on. A guide member for guiding is rotatably provided, and the pulling device is a device that moves the guide member to pull the string-like member in a direction to turn on the brake device. In .

  In the opening / closing body stop device of the opening / closing device, a guide member for guiding the string-like member is rotatably provided in the middle of the extending direction of the string-like member, and the pulling device turns on the brake device for the string-like member. Since the guide member is moved to pull in the direction, the guide member rotates when the string-like member is pulled in the direction to turn on the brake device by the movement of the guide member. Further, no load such as clamping force or rubbing force acts on the string-like material, and the safety of the string-like member can be ensured.

  An opening / closing body stopping device for an opening / closing apparatus according to the present invention includes: an opening / closing body that opens and closes; and a string-like member that is coupled to the opening / closing body when the opening / closing body contacts an obstacle during the closing movement. A brake device that is turned on by a tension force acting on the string-like member to stop the closing movement of the opening / closing body, and the string that is simultaneously with and / or after the contact of the opening / closing body with the obstacle And an opening / closing body stop device for an opening / closing device comprising a pulling device for pulling the shaped member in a direction to turn on the brake device, and a winding device for winding the string-like member freely. The pulling device is a device that moves the winding device to pull the string-like member in a direction in which the brake device is turned on.

  The opening / closing body stop device of the opening / closing device has a winding device for winding the string-like member so as to be freely drawn out, and the pulling device pulls the string-like member in a direction to turn on the brake device. Therefore, when the string-like member is pulled in the direction to turn on the brake device, only the pulling force acts on the string-like material, and loads such as clamping force and rubbing force do not act. Therefore, the safety of the string-like member can be ensured.

  In the above-described opening / closing body stopping device for an opening / closing device according to the present invention, the string-like member may be a wire, a chain such as a roller chain, or a synthetic resin string.

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

  Also, a slide member for switching the brake device on and off by sliding is provided between the string-like member and the brake device, and when the string-like member is pulled, the slide member slides and the brake device is It may be switched from off to on.

  The slide member may be, for example, a member constituting an automatic closing device for closing and moving the opening / closing body that has been stopped at the fully open position, or a member constituting a device other than the automatic closing device.

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

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

  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, a load such as a clamping force or a rubbing force does not act on the string-like material when pulled in the direction in which the brake device is turned on, and an effect that the safety of the string-like member can be ensured can be obtained.

FIG. 1 is a front view showing the entirety of a shutter device serving as an opening / closing device according to an embodiment of the present invention. 2 is a cross-sectional view taken along line S2-S2 of FIG. FIG. 3 is a cross-sectional view showing the internal structure of the switch shown in FIGS. 1 and 2. 4 is a cross-sectional view taken along line S4-S4 of FIG. FIG. 5 is a view similar to FIG. 4 showing the mechanical coupling device housed in the case shown in FIGS. 1 and 4. FIG. 6 is a cross-sectional view of the mechanical coupling device shown in FIG. 5 as viewed from the back side of the shutter curtain. FIG. 7 is a view similar to FIG. 4 showing when the shutter curtain abuts against an obstacle. FIG. 8 is a view similar to FIG. 6 showing the time of FIG. FIG. 9 is a view similar to FIG. 4 showing when the shutter curtain is in contact with an obstacle and the pulling device is activated. FIG. 10 is a view similar to FIG. 6 showing the time of FIG. FIG. 11 is a diagram showing an internal structure of the delay device shown in FIGS. 1 and 2. FIG. 12 is a front view showing the internal structure of the automatic closing device shown in FIGS. FIG. 13 is a plan view showing the internal structure of the automatic closing device. FIG. 14 is a view similar to FIG. 13 showing when the solenoid of the automatic closing device is energized and excited due to a disaster such as a fire. FIG. 15 is a view similar to FIG. 13 showing when energization and excitation of the solenoid of the automatic closing device are stopped. FIG. 16 is a view similar to FIG. 13 showing when the shutter curtain that is being closed is in contact with an obstacle. FIG. 17 is a view similar to FIG. 4 showing the pulling device of the first alternative embodiment. FIG. 18 is a view similar to FIG. 6 showing the pulling device of the first alternative embodiment. FIG. 19 is a view similar to FIG. 10 showing the pulling device of the first alternative embodiment. FIG. 20 is a view similar to FIG. 6 showing a pulling device of a second alternative embodiment. FIG. 21 is a view similar to FIG. 10 showing a pulling device of a second alternative embodiment. FIG. 22 is a view similar to FIG. 6 showing a pulling device of a third alternative embodiment. FIG. 23 is a view similar to FIG. 10 showing a pulling device of a third alternative embodiment. FIG. 24 is a view similar to FIG. 6 showing a pulling device of a fourth alternative embodiment. FIG. 25 is a view similar to FIG. 10 showing a pulling device of a fourth alternative embodiment. FIG. 26 is a view similar to FIG. 6 showing a pulling device of a fifth alternative embodiment. FIG. 27 is a view similar to FIG. 10 showing a pulling device of a fifth alternative embodiment. FIG. 28 is a view similar to FIG. 5 showing a pulling device of a sixth alternative embodiment. FIG. 29 is a view similar to FIG. 6 showing a pulling device of a sixth alternative embodiment. FIG. 30 is a view similar to FIG. 7 showing a pulling device of a sixth alternative embodiment. FIG. 31 is a view similar to FIG. 6 showing a state after the operation of the pulling device has slightly advanced from FIG. FIG. 32 is a view similar to FIG. 10 showing a pulling device of a sixth alternative embodiment. FIG. 33 is a partially enlarged view of FIG. FIG. 34 is a view similar to FIG. 1 showing another embodiment relating to the arrangement of the winding device. FIG. 35 is a view similar to FIG. 1 showing an embodiment in which the bridging member is a roller chain.

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is an opening-and-closing body 13 Opening and closing machine 16 Crib which is a stationary member 19 Brake device 32 Automatic closing device 34 Obstacle 35, 235, 635 Rotating member 35A, 235A, 635A Tooth part 36 Locking wire which is a string-like member 36A Linear portion 37,637 Take-up reel 38 Delay device 40 Take-up device 50,654 Center axis 51,251,650 of rotation of engaging member Engaging member 55 Mechanical coupling device 56 Pulling device 71A Opening / closing body main Curtain main portion 71B Curtain sub-portion as opening / closing member sub-portion 72 First movable member 73 Second movable member 74 Elastic member 150, 237, 338 Guide roller 152, 254 as guide member Swing member that is also a movement member 153,238 Pressure member 653 Engagement part 836 Roller chain which is a string-like member

  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 first brake member 20 is coupled to the end of the drive shaft 14 on the brake device 19 side. The brake device 19 is provided with a brake shaft 21 that is slidable by a fixed distance in the axial direction. The brake shaft 21 is coupled to a first brake member 20 and a second brake member 22 that faces in the axial direction. Has been. The brake shaft 21 and the second brake member 22 in the normal state are pressed toward the electric motor device 18 by the spring 23, so that the brake device 19 is pressed by the pressure contact between the first brake member 20 and the second brake member 22. Is on. Accordingly, the drive shaft 14 of the electric motor device 18 at this time is not rotated by the braking force of the brake device 19.

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

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

  In the present embodiment, as shown in FIG. 1, 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. It has become. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically.

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

  When the shutter curtain 1 reaches the height position of the lintel 16 disposed on the ceiling member 5 as described above, or when the occupant plate 1B has the lintel 16 and the floor 4 as shown in FIG. When the shutter button 1 of the operating device 30 is operated when the shutter curtain 1 that has reached the halfway position is in the half-closed state (half-open state), the control device 26 receives a signal from the “close” button. Since the solenoid 24 of the brake device 19 is energized by this control, the brake device 19 is turned off. Thus, the shutter curtain 1 is rotated downward from the take-up shaft 11 by rotating the take-up shaft 11 and the drive shaft 14 by the dead weight of the shutter curtain 1, and the shutter curtain 1 that is closed and moved thereby is brought into the fully closed position. When it reaches, the control of the control device 26 to which a signal from a sensor (not shown) that detects the fully closed position is input, the energization to the solenoid 24 is cut off, and the brake device 19 is turned on by the spring 23. In addition, when the shutter curtain 1 is fully closed, or the shutter curtain 1 is in a half-open state where the seat plate 1B reaches the midway position between the lintel 16 and the floor 4 as shown in FIG. When the “open” button is operated in a half-closed state), the solenoid 24 of the brake device 19 is energized under the control of the control device 26 to which a signal from the “open” button is input. While being turned off, the coil 25 of the electric motor device 18 is energized under the control of the control device 26. For this reason, the drive shaft 14 rotates in the reverse direction, and this rotation is transmitted to the winding shaft 11 via the driving force transmission means 12 described above, and the shutter curtain 1 is moved to the winding shaft 11 by the reverse rotation of the winding shaft 11. It is rolled up and moved. When the shutter curtain 1 reaches the fully open position, the energization to the solenoid 24 is cut off and the brake device 19 is turned on by the spring 23 under the control of the control device 26 that receives a signal from a sensor (not shown) that detects the fully open position. At the same time, the power to the coil 25 is cut off by the control of the control device 26.

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

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

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

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

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

  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 2nd brake member 22 slide to A 'direction. For this reason, the brake device 19 can be turned off without energizing the solenoid 24 at this time.

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

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

  Also, as shown in FIG. 4, in the seat plate 1B, a fixed portion 70A coupled to the curtain body 1A is formed by inner and outer members 75 and 76 both having a cross-sectional box shape. The movable portion 70B of the present embodiment that is movable up and down with respect to 70A includes an upper first movable member 72 and a lower second movable member that is movable up and down with respect to the first movable member 72. The first movable member 72 is arranged on the curtain main portion 71A side which is the above-mentioned opening / closing body main portion, and the second movable member 73 is the first movable member 73. The first movable member 72 is disposed on the opposite side of the curtain main portion 71A. An elastic member 74 is disposed between the first movable member 72 and the second movable member 73 which are members constituting the curtain sub-portion 71B. The elastic member 74 is shown in FIG. As shown in FIG. 1, the spring is formed of a U-shaped leaf spring.

  As can be seen from FIG. 4, the lower surfaces of the inner and outer members 75, 76 forming the fixed portion 70 </ b> A form an opening 78, and the rising portion 79 of the first movable member 72 of the seat plate 1 </ b> B from this opening 78. Is inserted into the internal space of the fixed portion 70A. At the upper end of the rising portion 79, extending portions 79A and 79B extending outward in the thickness direction of the shutter curtain 1 are formed, and these extending portions 79A and 79B are formed at the lower end of the inner member 76 of the fixing portion 70A. A movement limit to the lower side of the first movable member 72 relative to the fixed portion 70A is defined by riding on the upper surfaces of the formed projecting piece portions 76A and 76B. In addition, the upper end of the second movable member 73 having a shape that entirely encloses the lower portion of the first movable member 72 excluding the rising portion 79 is extended to the inside in the thickness direction of the shutter curtain 1. 73B are formed, and these extending portions 73A, 73B are placed on the upper surface of the first movable member 72, whereby the lower limit of movement of the second movable member 73 relative to the first movable member 72 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 FIGS. 7 and 9, when the first movable member 72 and the second movable member 73 are raised with respect to the fixed portion 70 </ b> A, that is, the shutter curtain 1 in the closing movement is shown in FIG. 1. When contacting the obstacle 34 or the like, the extending portion 79A of the rising portion 79 of the first movable member 72 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 shown in FIG. 1 is attached to the fixing portion 70A of the seat plate 1B. The inside of the case 33 is shown in FIGS. Has been. As shown in FIG. 6, the case 33 is provided with a rotating member 35 having a large number of teeth 35 </ b> A formed on the outer periphery in the circumferential direction, and a take-up reel 37. 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 lock wire 36 is connected to the rotating member 42 of the delay device 38 shown in FIG.

  As shown in FIGS. 1 and 2, the delay device 38 is installed in the aforementioned lintel 16. 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 member. When the shutter curtain 1 closes and moves downward, the shutter curtain 1 closes and moves while the locking wire 36 is fed from the rotating take-up reel 37.

  As shown in FIG. 5, a mainspring spring 39 (in FIG. 6, the mainspring spring 39 is a return spring) is provided on the outer periphery of a shaft 41 that is a rotation center axis of the rotating member 35 and the take-up reel 37. Is omitted between the rotary member 35 and the take-up reel 37, and one end of the mainspring spring 39 is connected to the case 33, and the other end. Is connected to the rotating member 35 or the take-up reel 37, so that when the shutter curtain 1 is closed and moved downward, the mainspring spring 39 is locked by the take-up reel 37 that rotates to feed out the lock wire 36. When the accumulated pressure for winding the wire 36 is accumulated and the shutter curtain 1 opens and moves upward, the take-up reel 37 rotates in reverse due to this accumulated pressure. More, the locking wire 36 is adapted to be wound on the take-up reel 37.

  For this reason, in the present embodiment, the take-up reel 37 and the mainspring spring 39 constitute a take-up device 40 for taking up the lock wire 36 so as to be unwound.

  As shown in FIG. 6, an engagement member 51 and a lever member 52 that are rotatable up and down around a shaft 50 provided in the case 33 are housed inside the case 33. A torsion coil spring 53 is interposed between the engagement member 51 and the lever member 52 as shown in FIG. One end 53 </ b> A of the torsion coil spring 53 in which the coil portion is wound around the outer periphery of the shaft 50 is inserted into a hole formed in the engaging member 51, and the other end 53 </ b> B is the upper surface of the lever member 52. For this reason, the torsion coil spring 53 is an elastic member for elastically connecting the engaging member 51 and the lever member 52 in the rotation direction about the shaft 50. The torsion coil spring 53 may be omitted and the engaging member 51 and the lever member 52 may be directly connected.

  As shown in FIGS. 4 and 5, the swing member 81 disposed so as to be swingable up and down around the fulcrum shaft 80 inside the fixing portion 70 </ b> A of the seat plate 1 </ b> B described above is pressed. As shown in FIG. 6, the end of the lever member 52 is attached to the pressing member 54 by the balance of the total weight of the engaging member 51 and the lever member 52 with respect to the shaft 50, as shown in FIG. 6. Even if the contact is made, the lever member 52 is urged to rotate in the B direction about the shaft 50 by the torsion coil spring 53 with respect to the engagement member 51, whereby the engagement member 51. The lever member 52 is elastically pivotally connected about the shaft 50 via a torsion coil spring 53.

  As shown in FIGS. 7 and 9, when the seat plate 1B comes into contact with the obstacle 34 shown in FIG. 1, the movable portion 70B with respect to the fixed portion 70A of the seat plate 1B of the shutter curtain 1 is used. Is relatively lifted, the lever member 52 and the engaging member 51 are rotated about the shaft 50 in the direction opposite to the direction B in FIG. And as FIG. 10 shows, it engages with the tooth | gear part 35A of the rotation member 35. As shown in FIG. Due to this engagement, the rotating member 35 and the take-up reel 37 coupled and integrated with the rotating member 35 cannot rotate in the rotating direction when the shutter curtain 1 moves 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 51, the lever member 52, and the like.

  Next, the delay device 38 shown in FIG. 11 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 disposed inside the damper 102 are attached to the rotation center shaft 104 of the pinion gear 103 via a one-way clutch. 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 FIGS. 1 and 2, an automatic closing device 32 is placed and fixed on the upper part of the switch 13. FIG. 12 is a front view showing the internal structure of the automatic closing device 32, and FIG. 13 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. 12 provided in the machine casing 110 of the automatic closing device 32. Further, as shown in FIG. 13, each of the first control wire 111, the second control wire 112, and the third control wire 113 for controlling the automatic closing device 32 up to the automatic closing device 32. The end of is extended. These control wires 111 to 113 are flexible string-like members, and are also elongated members, like the aforementioned locking wires 36.

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

  As shown in FIGS. 1, 2 and 11, 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. 12 and 13, the machine casing 110 of the automatic closing device 32 is provided with two rising portions 110 </ b> B and 110 </ b> C facing each other, and formed on these rising portions 110 </ b> B and 110 </ b> C. A plate-like slide member 120 having a length straddling the two rising portions 110B and 110C is slidably inserted into the holes 110D and 110E. A coil spring 121 is wound around the outer periphery of the slide member 120. Due to the spring force of the spring 121 serving as an elastic biasing member, a forward force toward the rising portion 110B is always applied to the slide member 120. doing. 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 12, 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. 12, in this embodiment, the actuating member 122 is a head portion 124A of the bolt 124. Therefore, the head portion 124A is operated to rotate the bolt 124 so that the bent portion of the slide member 120 is turned. 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. 13, a solenoid 126 is attached to the machine casing 110 of the automatic closing device 32, and the plunger 127 of the solenoid 126 has a spring force of a coil spring 128 that causes the plunger 127 to move to the solenoid 126. It always works in the direction of projecting from. A distal end member 140 is attached to the distal end of the plunger 127 with a fastening tool 127A such as a screw. The L-shaped bent lever member 129 is rotatable about the central axis 129A. One end of the is in contact. As can be seen in FIG. 12, the tip member 140 having an inverted L shape is in contact with the raising / lowering member 141 on the surface opposite to the surface with which the one end of the bending lever member 129 is in contact. The raising / lowering member 141 is rotatably attached to the rising portion of the bracket 142 shown in FIG. 13 by a central shaft 142A (see also FIG. 12) using a screw. The member 141 can be tilted up and down around the lower part through which the central shaft 142A is inserted. And as FIG. 13 shows, the roller 130 is rotatably provided in the other edge part of the bending lever member 129 used as a trigger lever member.

  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. Further, the automatic closing device 32 includes a spring 131 for applying a turning force in the G direction around the central axis 129A to the bending lever member 129, and a tilting member 141 on the solenoid 126 side with the central axis 142A as the center. There is provided a spring 132 for returning the raising / lowering member 141 to an upright state when it falls down. Due to the spring force of the spring 131, the normal roller 130 provided at the other end of the bending lever member 129 is engaged with the recess 120B of the slide member 120 as shown in FIG. By this fitting, the advancement of the slide member 120 by the coil spring 121 described above is stopped. 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 last position among the three positions H, I, and J shown in FIG. Position.

  As shown in FIG. 13, the automatic closing device 32 is provided with an electric switch 135, and the electric switch 135 has an actuator 136 biased in a direction protruding from the electric switch 135 by a spring. Is provided. Further, a dog member 137 is attached to the slide member 120 at a position 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 coupled to the slide member 120. The other end of the first control wire 111, which has one end connected to the rotating member 42 of the delay device 38 shown in FIG. 11, is the first end of the connecting member 138 connected to the slide member 120. 1 end of the second control wire 112 is connected to the above-described tilting member 141 shown in FIGS. 12 and 13, and the end of the third control wire 113 is connected to the connecting portion 138A. The second connecting portion 138B of the connecting member 138 connected to the slide member 120 is connected.

  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. 11 includes the locking wire 36 which is the above-described bridging member and also a flexible string-like member, and the switch 13. Since it is arranged between the automatic closing device 32 provided with the slide member 120 for controlling automatically, it is a relay device that relays between the locking wire 36 and the automatic closing device 32, The delay device 38 and the slide member 120 of the automatic closing device 32 are connected via a first control wire 111.

  Further, on the extension line of the lock wire 36, the combination of the electric motor device 18 and the brake device 19 is provided via the delay device 38, the first control wire 111, and the slide member 120 of the automatic closing device 32. That is, the opening / closing machine 13 is arranged. 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 switched from OFF to 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 and the tip member 140 of the solenoid 126 are retracted against the spring force of the coil spring 128. As a result, the bending lever member 129 rotates in the direction opposite to the G direction in FIG. 13 about the central axis 129A against the spring force of the spring 131. The state at this time is shown in FIG. When the bending lever member 129 rotates about the central axis 129A in the direction opposite to the G direction, the roller 130 of the bending lever member 129 escapes from the concave portion 120B of the sliding member 120, so that the sliding member 120 is an elastic biasing member. The forward movement is stopped by the spring force of the coil spring 121, and 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. 13 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.

  By stopping the energization of the solenoid 126, the plunger 127 and the tip member 140 project and move from the solenoid 126 by the spring force of the spring 128, and the bending lever member 129 is centered on the central axis 129A by the spring force of the spring 131. Rotate in the G direction. Since the slide member 120 at this time has moved to the forward 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 rotation of the bending lever member 129 about the central axis 129A in the G direction stops halfway, and the protruding movement of the plunger 127 and the tip member 140 causes the tip member 140 to contact the tilting member 141. Stop by touching.

  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 second brake member 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. Turn off. For this reason, the shutter curtain 1 that has been stopped at the fully open position or in the middle of the opening / closing movement direction rotates the take-up shaft 11 by the weight of the seat plate 1B and the like below the take-up shaft 11. The above-described drive shaft 14 of the opening / closing machine 13 also rotates freely via the driving force transmission means 12 and the shutter curtain 1 is fully closed, so that the disaster prevention section by the shutter curtain 1 is opened. Will be formed.

  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 raising / lowering member 141 of FIGS. 12 and 13 to which the second control wire 112 is connected is tilted to the solenoid 126 side around the central shaft 142A, and thus the raising / lowering member 141 is moved to the raising / lowering member 141. The plunger 127 pushed through the tip member 140 moves backward, and the bending lever member 129 whose one end is in contact with the tip member 140 by the spring force of the spring 131 is centered on the central shaft 129A. Further, it rotates in the direction opposite to the G direction in FIG.

  For this reason, even before the solenoid 126 is energized and excited, as in the case where the solenoid 126 is energized and excited, the roller 130 of the bending lever member 129 escapes from the recess 120B of the slide member 120, and the slide member 120. Is moved forward by the spring force of the coil spring 121, so that the brake device 19 that has been turned on can be turned off, whereby the shutter curtain 1 is moved to the fully closed position by its own weight. Can do.

  Thus, when the shutter curtain 1 reaches the fully closed position and a disaster such as a fire is resolved, the shutter curtain 1 is disposed on the operating device 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. 15 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 about the central axis 129A in the G direction of FIG. As shown in FIG. 13, the slide member 120 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 second brake member 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. The brake device 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 disaster prevention shutter device and the shutter curtain 1 is closed and moved, in other words, the automatic closing device 32 is in the state shown in FIG. 15 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. More specifically, the movable portion 70B of FIGS. 4 and 5 in which the curtain sub-portion 71B arranged at the front end portion on the closing side forms the lower portion of the seat plate 1B of the shutter curtain 1 is more specifically described. The second movable member 73 shown in FIGS. 4 and 5 comes into contact with the obstacle 34, and the lowering of the movable portion 70B stops.

  Even if the lowering of the movable portion 70B is stopped, the curtain main portion 71A, which is composed of the curtain body 1A and the fixed portion 70A of FIGS. 4 and 5 among the seat plate 1B, is lowered from the state of FIG. Therefore, the relative movement of the curtain sub-portion 71B (movable portion 70B) with respect to the curtain main portion 71A generated by the lowering causes the swing disposed in the fixed portion 70A as shown in FIG. The member 81 swings upward about the fulcrum shaft 80. Accordingly, as shown in FIG. 8, the lever member 52 and the engaging member 51 of the mechanical coupling device 55 are pivoted in the direction opposite to the direction B in FIG. 6 by the pressing member 54 provided on the swing member 81. The engaging member 51 is engaged with the tooth portion 35 </ b> A of the rotating member 35.

  As a result, the rotating member 35 and the take-up reel 37 that were rotating when the shutter curtain 1 is closed and moved cannot be rotated, and the shutter curtain 1 and the lock wire 36 that has been fed out from the take-up reel 37 Are coupled by a mechanical coupling device 55 having the lever member 52 and the engaging member 51 as components, and the locking wire 36 has a downward tension due to the weight of the shutter curtain 1, more specifically, the shutter. Of the weight of the curtain 1, a downward tension force due to the weight excluding the movable portion 70B which is the curtain sub-portion 71B, that is, the weight of the curtain main portion 71A acts.

  The lever member 52 and the engaging member 51 of the mechanical coupling device 55 may be directly connected and integrated as described above. However, the lever member 52 and the engaging member 51 are connected to the torsion coil as in this embodiment. The spring 53 is elastically connected in the rotation direction about the shaft 50 to prevent the engagement member 51 from suddenly engaging the tooth portion 35A of the rotation member 35. It is possible to prevent the rotating member 35 from being damaged.

  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. Therefore, the rotation member 42 of the delay device 38 shown in FIG. 11 rotates in the direction D in FIG. 11 against the return spring 100 described above, and the amount of rotation is inserted into the stop member 101 described above. It corresponds to the length of the arc-shaped long hole 42B. 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 connected to the slide member 120 of the automatic closing device 32 shown in FIG. The slide member 120 moves backward while resisting 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. 15 does not move back to the retreat limit where the position of the front end of the slide member 120 becomes the H position in FIG. 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 forward 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 12 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 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 in contact with the obstacle 34 is closed and stopped 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 of the locking wire 36 disappears, so that the rotation member 42 of the delay device 38 on which the return force by the return spring 100 of FIG. 11 acts is rotated in the direction C of FIG. As a result of this rotation, the slide member 120 of the automatic closing device 32 that has been pulled backward by the first control wire 111 is moved from the position J in FIG. The forward movement to the I position in FIG. 15 is performed. For this reason, the brake device 19 of the opening / closing machine 13 is switched again from on to off, and the shutter curtain 1 resumes its closed movement.

  When the rotating member 42 of the delay device 38 rotates in the direction C in FIG. 11, 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 in FIG. 16 to the I position in FIGS. 13 and 15, and the brake device 19 of the switch 13 is switched from ON to OFF by this shift. Because of the delay action of the damper 102, it is not performed instantaneously. Therefore, when the shutter curtain 1 is closed and restarted by the removal of the obstacle 34, the movement of the obstacle 34 is started with a time delay from the removal of the obstacle 34. It can be carried out.

  In the above description, the obstacle 34 in contact with the shutter curtain 1 that is in the closed movement is deformed, in other words, the obstacle 34 is soft or flexible. When 34 is a hard thing, the dent deformation | transformation for pulling the locking wire 36 below does not arise in the obstruction 34, or hardly arises.

  For this reason, even in the case where the obstacle 34 is hard, in order to enable the locking wire 36 to be pulled downward similarly to the case where the dent deformation occurs, in the present embodiment, As described with reference to FIG. 4, the movable portion 70B of the seat plate 1B of the shutter curtain 1 is movable up and down with respect to the fixed portion 70A of the seat plate 1B, and the first movable member 72. A second movable member 73 which is disposed below the first movable member 72 and is movable up and down with respect to the first movable member 72, and a leaf spring interposed between the first movable member 72 and the second movable member 73 And an elastic member 74.

  When the shutter curtain 1 that is being closed is in contact with the obstacle 34, as described above, the movable part 70B composed of the first movable member 72 and the second movable member 73, in other words, the curtain sub part 71B is the curtain main part. The shutter curtain 1 and the locking wire 36 are coupled to each other by the mechanical coupling device 55, and downward tension due to the weight of the curtain main portion 71A acts on the locking wire 36. At the same time, when the obstacle 34 is hard, the second movable member 73 with which the obstacle 34 abuts and the elastic member 74 pushes the second movable member 73 upward. With respect to the first movable member 72, the curtain main portion 71A is disposed on the curtain main portion 71A by the weight of the curtain main portion 71A itself. Via the formula coupling device 55 and the pressing member 54 and the swing member 81 described above and the first movable member 72, while the elastic member 74 is elastically contracted and deformed, so that the lowered. The state at this time is shown in FIG. 9 and FIG.

  9, the first movable member 72 is lowered relative to the second movable member 73 by the amount of contraction deformation of the elastic member 74, the curtain main portion 71A is also lowered, and the first movable member 72 is lower than that in FIG. Is raised relative to the curtain main portion 71A due to the elastic force of the elastic member 74 whose spring force is increased by elastic contraction deformation. It swings upward about the shaft 80. For this reason, in this embodiment, the elastic contraction deformation of the elastic member 74 produces the same effect as the dent deformation in the obstacle 34.

  Thus, when the swing member 81 swings upward about the fulcrum shaft 80 as compared with FIG. 7 due to the elastic contraction deformation of the elastic member 74, it becomes a constituent element of the mechanical coupling device 55, and the teeth of the rotating member 35 As shown in FIG. 8, the engaging member 51 already engaged with the portion 35A further rotates around the shaft 50 in the direction opposite to the direction B in FIG. 6 from the state of FIG. 8 to the state of FIG. Will do. Therefore, the rotating member 35 and the take-up reel 37 coupled and integrated with the rotating member 35 rotate in the K direction in FIG. 10. In this rotating direction, the take-up reel 37 locks the locking wire 36. The locking wire 36 is pulled downward by this winding.

  In this way, the rocking member 81 is swung upward about the fulcrum shaft 80 so that the locking wire 36 is pulled downward, as a matter of course, when the obstacle 34 is hard. This also occurs when the obstacle 34 is soft or flexible. For this reason, the locking wire 36 can be pulled downward even if the obstacle 34 has any property including hardness. .

  Then, when the locking wire 36 is pulled downward, as apparent from the above description, the rotation member 42 of the delay device 38 in FIG. 11 is rotated in the D direction, and the automatic closing device 32 in FIG. 15 can be moved backward from the I position in FIG. 15 to the J position in FIG. 16, so that the brake device 19 of the switch 13 can be turned on from off. By switching, the closing movement of the shutter curtain 1 in contact with the obstacle 34 can be stopped. That is, in order to stop the shutter curtain 1 that has come into contact with the obstacle 34 during the closing movement, the brake device 19 can be turned on more reliably.

  As can be understood from the above description, the movable portion 70B of the seat plate 1B constituting the curtain sub-portion 71B of the shutter curtain 1 includes the first movable member 72, the second movable member 73, and these first movable members. Since the elastic member 74 is interposed between the second movable member 73 and the second movable member 73, the lock wire 36 is simultaneously and / or after the shutter curtain 1 is in contact with the obstacle 34. Since the first movable member 72, the second movable member 73, and the elastic member 74 constitute the tension device 56, the tension device 56 is configured.

  According to this embodiment, as can be seen from the above description, when the lock wire 36 is pulled in the direction to turn on the brake device 19 by the pull device 56, the lock wire 36 includes a take-up reel. Only the pulling force due to the winding of 37 acts and no load such as clamping force or rubbing force acts, so that the safety of the locking wire 36 can be ensured.

  The rotating member 42 of the delay device 38 in FIG. 11 also rotates in the D direction even when the shutter curtain 1 is in contact with the obstacle 34 when the shutter curtain 1 is closing and moving as the shutter curtain 1 of the management shutter device described above. The first control wire 111 is pulled and the automatic closing device 32 at this time is in the state shown in FIG. 13, and the roller 130 of the bending lever member 129 is fitted into the recess 120 </ b> B of the slide member 120. Therefore, the slide member 120 is slightly retracted by the gap between the roller 130 and the recess 120B, and therefore, the automatic closing device 32 does not change greatly.

  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 driving and controlling the opening / closing machine 13 by the device 26, the shutter curtain 1 may be reversed and raised after being brought into contact with the obstacle 34 and stopped. When 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 is the shutter device for disaster prevention, the shutter curtain is closed and moved. By inputting the signal from the sensor to the control device 26, the signal from the electric switch is invalidated.

  Next, a tension device according to another embodiment will be described. In the following description, the same reference numerals are used for the same or the same functions as the members and parts already described, and the description thereof is omitted.

  The shutter curtain 1 of the embodiment of FIG. 17 also has a curtain main body 1A and a seat plate 1B, and the seat plate 1B is movable up and down with respect to the fixed portion 70A coupled to the curtain main body 1A. The movable portion 70 </ b> B in this embodiment is constituted by a single movable member 77.

  As shown in FIG. 17, a case 133 is attached to the fixed portion 70A of the seat plate 1B, and the inside of the case 133 is shown in FIG. The above-described winding device 40 and the mechanical coupling device 55 described with reference to FIG. 6 are accommodated in the case 133, and the case 133 rotates around the shaft 134 provided in the case 133. A free guide roller 150 and a swinging member 152 swingable up and down around a shaft 151 provided in the case 133 are housed. The swing member 152 is a motion member in this embodiment.

  As shown in FIG. 18, the swing member 81 that can swing up and down around the fulcrum shaft 80 of the fixed portion 70A of the seat plate 1B shown in FIG. A pressing member 54 is attached. One pressing member 54 is in contact with an end portion of a lever member 52 constituting the mechanical coupling device 55, and the other pressing member 54 has an oscillating member 152. Of these, one end projecting downward from the case 133 is in contact. In addition, an elastic member such as a spring for rotating and urging the swing member 152 is disposed on the case 133 so that one end of the swing member 152 is always brought into contact with the other pressing member 54. May be.

  The locking wire 36, which is a bridging member and also a flexible string-like member, is wound around the guide roller 150 and then wound as a constituent member of the winding device 40. It is wound around a take-up reel 37. Therefore, a portion of the locking wire 36 that is spanned between the guide roller 150 and the take-up reel 37 is a linear portion 36A. The other end of the swinging member 152 is above the linear portion 36A, and a roller-like pressure member 153 is rotatably disposed at this end. Note that the guide roller 150 and the take-up reel 37 are two rotating members on which the locking wire 36 in this embodiment is bridged.

  When the shutter curtain 1 closes and moves as a shutter curtain of the shutter device for disaster prevention, when the shutter curtain 1 comes into contact with the obstacle 34, the rocker disposed inside the fixing portion 70A of the seat plate 1B. When the moving member 81 swings upward about the fulcrum shaft 80, the engaging member 51 of the mechanical coupling device 55 engages with the tooth portion 35A of the rotating member 35 as described above, and thereby the shutter curtain. 1 and the lock wire 36 fed out from the take-up reel 37 are coupled by a mechanical coupling device 55. This state is shown in FIG.

  When the shutter curtain 1 abuts against the obstacle 34 and the swing member 81 swings upward about the fulcrum shaft 80, the swing member 152 serving as the above-mentioned motion member is pivoted as shown in FIG. The pressure member 153 that swings about 151 and is provided at the end of the swing member 152 pushes down the linear portion 36 </ b> A of the lock wire 36. Therefore, the portion 36A is a substantially V-shaped non-linear portion having a bending angle larger than 90 degrees. As a result, the locking wire 36 is pulled downward.

  Therefore, in this embodiment, the swinging member 152 and the pressure member 153 constitute the pulling device 56 for pulling the locking wire 36 downward in order to turn on the brake device 19.

  In addition, according to this embodiment, the portion of the swinging member 152 that pushes the linear portion 36A of the locking wire 36 and makes it non-linear is the rotatable pressing member 153. When 152 presses and presses the linear portion 36A to make it non-linear, the pressing member 153 rotates, so that even if the locking wire 36 moves relative to the pressing member 153, It is possible to reduce the friction with the locking wire 36 and apply pressure.

  For this reason, even in this embodiment, when the locking wire 36 is pulled in the direction to turn on the brake device 19 by the pulling device 56, a load such as a clamping force or a rubbing force is applied to the locking wire 36. Therefore, the safety of the locking wire 36 can be ensured.

  In the embodiment of FIG. 20 as well, a take-up reel 37 that rotates about a shaft 41 and a take-up reel 37 around which a lock wire 36 is taken up inside a case 233 attached to the fixing portion 70A of the seat plate 1B. The mainspring spring is configured to rotate and bias in the direction, and a winding device 40 for winding the locking wire 36 so as to be freely retracted is housed, and a shaft 41 is attached to the winding reel 37. A rotating member 235 that rotates about the center is coupled and integrated, and a plurality of tooth portions 235 </ b> A are formed on the outer peripheral portion of the rotating member 235 in the circumferential direction.

  Further, inside the case 233, an engaging member 251, a swinging member 254, and a lever member 252 that are swingable up and down around a shaft 250 provided in the case 233 are housed. 251 and the swing member 254 are combined and integrated. Further, the engaging member 251 and the swinging member 254 and the lever member 252 are elastically connected in a rotational direction about the shaft 250 by a torsion coil spring 253, and for this connection, the coil portion One end 253A of the torsion coil spring 253 wound around the outer periphery of the shaft 250 is locked to at least one of the engaging member 251 and the swinging member 254, and the other end 253B is a lever. Locked to the member 252. The swing member 254 is a motion member in this embodiment.

  Further, the engaging member 251 and the swinging member 254 and the lever member 252 may be directly coupled and integrated as in the relationship between the engaging member 251 and the swinging member 254, or the engaging member. 251, swing member 254, and lever member 252 may be a single member.

  The engaging member 251 is disposed below the rotating member 235, and a plurality of tooth portions 251A that can engage with the tooth portions 235A of the rotating member 235 are formed on the upper surface portion of the engaging member 251. ing.

  Inside the case 233, a guide roller 237 is rotatably accommodated around a shaft 236 provided in the case 233. The lock wire 36 is wound around the guide roller 237 and then the winding device 40 It is wound around a take-up reel 37 which is a constituent member. Therefore, also in this embodiment, a portion of the locking wire 36 that is spanned between the guide roller 237 and the take-up reel 37 is a linear portion 36A. Of the both ends of the swinging member 254, the end opposite to the shaft 250 side is below the linear portion 36A, and a roller-shaped pressure member 238 is freely rotatable at this end. Is arranged.

  When the shutter curtain 1 closes and moves as a shutter curtain of the shutter device for disaster prevention, when the shutter curtain 1 comes into contact with the obstacle 34, the rocker disposed inside the fixing portion 70A of the seat plate 1B. Since the moving member 81 swings upward about the fulcrum shaft 80 described above, the pressing member 54 provided on the swinging member 81 moves the lever member 252 around the shaft 250 as shown in FIG. Thus, the tooth portion 251A of the engaging member 251 is engaged with the tooth portion 235A of the rotating member 235, so that the shutter curtain 1 and the take-up reel 37 are fed out. The locking wire 36 is coupled.

  Therefore, in this embodiment, the mechanical coupling device 55 for mechanically coupling the shutter curtain 1 and the locking wire 36 is configured by the rotating member 235, the engaging member 251, and the lever member 252.

  When the shutter curtain 1 abuts against the obstacle 34 and the swing member 81 swings upward about the fulcrum shaft 80, as shown in FIG. In order to swing upward about 250, the pressing member 238 provided at the end of the swinging member 254 pushes up the linear portion 36 </ b> A of the locking wire 36. Therefore, the portion 36A is a substantially inverted V-shaped non-linear portion having a bending angle larger than 90 degrees. As a result, the locking wire 36 is pulled downward.

  Therefore, in this embodiment, the pulling device 56 for pulling the lock wire 36 downward to turn on the brake device 19 is constituted by the swing member 254 and the pressure member 238.

  Also in this embodiment, the portion of the swinging member 254 that pushes the linear portion 36A of the locking wire 36 and makes it non-linear is the pressure member 238 that is rotatable, and thus the swinging member 254. When the pressure member 238 presses the linear portion 36A to make it non-linear, the pressure member 238 rotates. Therefore, even if the locking wire 36 moves relative to the pressure member 238, It is possible to reduce the friction with the locking wire 36 and apply pressure.

  For this reason, when the lock wire 36 is pulled in the direction to turn on the brake device 19 by the pulling device 56, a load such as a clamping force or a rubbing force does not act on the lock wire 36. 36 safety can be secured.

  Also in this embodiment, the engaging member 251 and the swinging member 254 and the lever member 252 are elastically connected in the rotational direction around the shaft 250 by the torsion coil spring 253, so It is possible to prevent the tooth portion 251A of the member 251 from suddenly biting into the tooth portion 235A of the rotating member 235 and the pressing member 238 from pushing up the portion 36A of the locking wire 36 with a large force.

  The winding device 40 and the mechanical coupling device 55 in the embodiment of FIG. 22 are the same as the winding device and the mechanical coupling device of the embodiment of FIG. In this embodiment, a swinging member 354 is integrally coupled to the engaging member 251 that is a constituent element of the mechanical coupling device 55. The swinging member 354 is shorter in length than the swinging member 254 in FIG. 20, but the shaft 250 that is the rotation center axis of the engaging member 251 and the lever member 252 is the same as the swinging member 254. It can swing up and down.

  Further, inside the case 333 attached to the fixing portion 70A of the seat plate 1B is housed a lever member 336 that can swing up and down around a shaft 335 provided in the case 333. One end of the lever member 336 is in contact with the end of the swinging member 354 opposite to the shaft 250 from the bottom. At the other end of the lever member 336, a guide roller 338 that is rotatable about a shaft 337 provided at this end is disposed, and the locking wire 36 is looped around the guide roller 338. After that, it is wound around a winding reel 37 that is a constituent member of the winding device 40. The guide roller 338 in this embodiment is a guide member for guiding the locking wire 36, like the guide roller 150 in FIG. 18 and the guide roller 237 in FIG. In the middle of the extending direction of the locking wire 36, that is, between the delay device 38 shown in FIG. 11 and the winding device 40 of FIG.

  When the shutter curtain 1 closes and moves as a shutter curtain of the shutter device for disaster prevention, when the shutter curtain 1 comes into contact with the obstacle 34, the rocker disposed inside the fixing portion 70A of the seat plate 1B. When the moving member 81 swings upward about the fulcrum shaft 80, the pressing member 54 provided on the swinging member 81 centers the lever member 252 about the shaft 250 as shown in FIG. When the tooth portion 251A of the engaging member 251 is engaged with the tooth portion 235A of the rotating member 235, that is, when the mechanical coupling device 55 is operated, the shutter curtain 1 and the winding The lock wire 36 fed out from the take-up reel 37 is coupled.

  When the shutter curtain 1 abuts against the obstacle 34 and the swing member 81 swings upward about the fulcrum shaft 80, the swing member 354 swings upward about the shaft 250 as shown in FIG. Therefore, the lever member 336 is rotated about the shaft 335, and the guide roller 338 is lowered while rotating by this rotation. As a result, the locking wire 36 is pulled downward.

  Therefore, in this embodiment, the lock wire 36 is used to turn on the brake device 19 by moving the guide roller 338 serving as the guide member of the lock wire 36 by the swing member 354 and the lever member 336. Thus, a pulling device 56 that can pull the knives downward is configured.

  In this embodiment, when the lock wire 36 is pulled by the pulling device 56 in the direction in which the brake device 19 is turned on, the guide roller 338 that is a member for performing this pulling rotates, so that the lock A load such as a clamping force or a rubbing force does not act on the wire for use 36, and the safety of the wire for locking 36 can be ensured.

  The winding device 40 and the mechanical coupling device 55 in the embodiment of FIG. 24 are the same as the winding device and the mechanical coupling device of the embodiment of FIG. However, unlike FIG. 20, the lock wire 36 of this embodiment reaches the take-up reel 37 that is a component of the take-up device 40 without being wound around a guide member such as a guide roller. Has been taken. In this embodiment, unlike the previous embodiments, the case 433 disposed on the fixing portion 70A of the seat plate 1B is not fixed to the fixing portion 70A but is provided on the fixing portion 70A. It is rotatable up and down about the shaft 451.

  In addition, a lever member 453 that is rotatable up and down around a shaft 452 provided in the fixing portion 70A is disposed in the fixing portion 70A. One end of the lever member 453 is provided at the case 433. It is in contact with the projection 454 by a pin or the like provided from above. The other end of the lever member 453 is one of two pressing members 54 attached to a swinging member 81 provided on the fixed portion 70A so as to be swingable in the vertical direction around the fulcrum shaft 80. The end of a lever member 252 that is a constituent member of the mechanical coupling device 55 is in contact with the other pressing member 54 from above, as in the embodiment of FIG.

  When the shutter curtain 1 closes and moves as a shutter curtain of the shutter device for disaster prevention, when the shutter curtain 1 comes into contact with the obstacle 34, the rocker disposed inside the fixing portion 70A of the seat plate 1B. Since the moving member 81 swings upward about the fulcrum shaft 80, the pressing member 54 provided on the swinging member 81 moves the lever member 252 around the shaft 250 as shown in FIG. By rotating upward, the tooth portion 251A of the engaging member 251 is engaged with the tooth portion 235A of the rotating member 235, that is, the mechanical coupling device 55 is operated, and the shutter curtain 1 and the take-up reel 37 are operated. The lock wire 36 that has been fed out is coupled.

  Further, when the shutter curtain 1 abuts against the obstacle 34 and the swing member 81 swings upward about the fulcrum shaft 80, the pressing member 54 provided on the swing member 81 is pushed up as shown in FIG. Since the lever member 453 rotates about the shaft 452 due to the action, the lever member 453 pushes down the protrusion 454, whereby the case 433 rotates downward about the shaft 451.

  Since the winding device 40 winding the lock wire 36 is disposed inside the case 433, when the case 433 rotates downward about the shaft 451, the winding device 40 also faces downward. Thus, the locking wire 36 is pulled downward.

  Therefore, in this embodiment, the case 433 and the lever member 453 constitute a pulling device 56 that can pull the locking wire 36 downward to turn on the brake device 19.

  Even in this embodiment, when the lock wire 36 is pulled by the pulling device 56 in the direction in which the brake device 19 is turned on, a load such as a clamping force or a rubbing force does not act on the lock wire 36. The safety of the lock wire 36 can be ensured.

  In the embodiment of FIG. 26 as well, the case 533 disposed on the fixing portion 70A of the seat plate 1B is not fixed to the fixing portion 70A, and the shaft 551 provided on the fixing portion 70A is centered in the vertical direction. It is free to rotate. The case 533 accommodates the same winding device 40 as that of the embodiment of FIG. 20, and the winding reel 37 that is a constituent member of the winding device 40 has the same structure as that of the embodiment of FIG. 20. Similarly, the rotating member 235 is coupled and integrated.

  A lever member 553 that is pivotable in the vertical direction about a shaft 552 provided in the fixing portion 70A is disposed in the fixing portion 70A, and one end portion of the lever member 553 is disposed on the case 533. An engagement portion 553A that is inserted into the inside for a long time and is engageable with a tooth portion 235A of the rotating member 235 is provided at the tip thereof. Further, the other end of the lever member 553 contacts the pressing member 54 attached to a swinging member 81 provided on the fixed portion 70A so as to be swingable in the vertical direction around the fulcrum shaft 80 from above. It touches.

  When the shutter curtain 1 closes and moves as a shutter curtain of the shutter device for disaster prevention, when the shutter curtain 1 comes into contact with the obstacle 34, the rocker disposed inside the fixing portion 70A of the seat plate 1B. Since the moving member 81 swings upward about the fulcrum shaft 80, as shown in FIG. 27, the pressing member 54 provided on the swinging member 81 moves the lever member 553 around the shaft 552. By this rotation, the engaging portion 553A of the lever member 553 is engaged with the tooth portion 235A of the rotating member 235, and thereby the rotation about the shaft 41 of the rotating member 235 and the take-up reel 37 is prevented. Therefore, the shutter curtain 1 is coupled to the locking wire 36 which is locked and thus serves as the above-described bridging member and also as a flexible string member. It becomes Rukoto.

  For this reason, in this embodiment, the rotating member 235 and the lever member 553 constitute a mechanical coupling device 55 for mechanically coupling the locking wire 36 and the shutter curtain 1.

  Further, when the engaging portion 553A of the lever member 553 engages with the tooth portion 235A of the rotating member 235, a pressing force acts on the rotating member 235 from the engaging portion 553A, and thus the rotating member 235 is disposed. As shown in FIG. 27, the case 533 rotates downward about the shaft 551. Since the winding device 40 that winds the lock wire 36 is disposed inside the case 533, the winding device 40 is also rotated by rotating the case 533 downward about the shaft 551. By rotating downward, the locking wire 36 is pulled downward.

  Therefore, in this embodiment, the case 533 and the lever member 553 constitute the pulling device 56 for pulling the locking wire 36 downward in order to turn on the brake device 19.

  Even in this embodiment, when the locking wire 36 is pulled by the pulling device 56 in the direction in which the brake device 19 is turned on, a load such as a clamping force or a rubbing force does not act on the locking wire 36. Therefore, the safety of the locking wire 36 can be ensured.

  28 to 33 show a mechanical coupling device and a pulling device according to still another embodiment. The pulling device 56 (see FIGS. 29, 31 and 32) of this embodiment is a device for feeding out the locking wire 36 when the shutter curtain is closed, similar to the pulling device described in FIGS. The winding device 40 is configured to perform an operation of winding the locking wire 36.

  The shutter curtain 1 in this embodiment also has a curtain main body 1A and a seat plate 1B, similar to the shutter curtain shown in FIG. 17, and the seat plate 1B includes a fixed portion 70A coupled to the curtain main body 1A. The movable portion 70B is movable up and down with respect to the fixed portion 70A. The movable portion 70B is composed of a single movable member 77.

  As shown in FIG. 28, a case 633 is attached to the fixing portion 70A of the seat plate 1B, and the inside of the case 633 is also shown in FIG. Inside the case 633, a rotating member 635 having a large number of teeth 635 </ b> A formed in the circumferential direction on the outer periphery and a take-up reel 637 have a shaft 641 serving as a fixed shaft fixed to the case 633. The rotating member 635 and the take-up reel 637 are combined and integrated. Further, the lower end of the lock wire 36 is coupled to the take-up reel 637, the lower part of the lock wire 36 is taken up by the take-up reel 637, and the upper part is placed on the upper surface of the case 633. It extends upward from the formed hole 633A. The upper end of the lock 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 633 shown in FIG. 29 and guided by the guide rollers to guide the locking wire 36 to the take-up reel 637. .

  As shown in FIG. 28, a space 637A is formed inside the take-up reel 637 that is coupled and integrated with the rotating member 635, and a part of the space 637A is omitted in FIG. The return spring 639 shown in the figure is housed, and this return spring 639 wound around the outer periphery of the shaft 641, which is the rotation center axis of the rotating member 635 and the take-up reel 637, is a mainspring spring. One end of the return spring 639 is coupled to a shaft 641 which is a member on the case 633 side, and the other end is coupled to a take-up reel 637 integrated with the rotating member 635. Therefore, when the rotating member 635 and the take-up reel 637 rotate in the S direction in FIG. 29 and the shutter curtain 1 closes and moves downward, the return spring 639 is moved in the S direction to feed out the locking wire 36. The rotating take-up reel 637 accumulates a take-up force for taking up the lock wire 36 by the take-up reel 637, the rotating member 635 and the take-up reel 637 rotate in the T direction, and the shutter curtain 1 moves upward. When the take-up reel 637 rotates in the T direction by the accumulated pressure accumulated in the return spring 639 during the opening movement, the lock wire 36 is wound around the take-up reel 637.

  For this reason, also in this embodiment, the take-up reel 637 and the return spring 639 constitute the take-up device 40 for taking up the lock wire 36 in a freely feedable manner.

  In this embodiment, the return spring 639 by the mainspring spring is housed in a space portion 637A formed inside the take-up reel 637. Therefore, even if the dimension in the thickness direction of the shutter curtain 1 with respect to the case 633 is small. As can be seen from FIG. 28, the thickness of the shutter curtain 1 in the thickness direction of the take-up reel 637 can be made sufficiently large, so that the take-up length of the lock wire 36 by the take-up reel 637 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. 29, the case 633 contains an engaging member 650 that is rotatable up and down about a shaft 654 provided in the case 633. The engagement member 650 of this embodiment is coupled to a first component member 651 having an engagement portion 653 that can be engaged with a tooth portion 635A of the rotation member 635, and the first component member 651. The second constituent member 652 has a length in the width direction of the shutter curtain 1, and the second constituent member 652 is engaged with the tooth portion 635A of the rotating member 635. Does not have a part. In this way, the engaging member 650 is a combination of the first component member 651 and the second component member 652 that are separate parts, and an engaging portion 653 that engages with the tooth portion 635A of the rotating member 635 is formed. The first component member 651 is made to be the second component member by subjecting the first component member 651 to quenching or the like, or by forming the first component member 651 with a material different from the second component member 652. It is possible to make the engaging portion 653 harder than the engaging portion 653 without quenching the entire engaging member 650 or forming the entire engaging member 650 from an expensive material. Like the tooth portion 635A of the rotating member 635, a large strength can be imparted.

  In this embodiment, as the engaging portion 653 of the engaging member 650, as shown in FIG. 29, the first engaging portion separated in the rotation direction of the engaging member 650 about the shaft 654. 653A and a second engagement portion 653B are provided, and the first engagement portion 653A and the second engagement portion 653B are on an arc centered on a shaft 654 that is a rotation center portion of the engagement member 650 or It is formed on a substantially arc.

  As can be seen from FIG. 28, the engaging member 650 is provided with a torsion coil spring 657. The coil portion 657C of the torsion coil spring 657 is wound around the shaft 654, one end 657A of the torsion coil spring 657 is locked to the engaging member 650, and the other end 657B is the case 633. The lower surface portion 633B is bent and has a small dimension. For this reason, in FIG. 29, the engaging member 650 is always urged to rotate in the M direction about the shaft 654 by the spring force of the torsion coil spring 657, whereby the end of the engaging member 650 is The pressure member 54 is disposed on a swing member 81 that can swing up and down around the fulcrum shaft 80 described above.

  For this reason, as will be described later, the shutter curtain 1 and the engagement member 650 are engaged with the engagement member 650 when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34, as shown in FIG. Therefore, a shutter curtain side contact portion 658 and an engagement member side contact portion 659 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 658 is formed by the pressing member 54, and the engagement member side contact portion 659 is a first engagement member side contact portion in the second component member 652 of the engagement member 650. Two 659A and second engagement member side contact portions 659B exist. The first engagement member side contact portion 659A and the second engagement member side contact portion 659B are separated from each other in the width direction of the shutter curtain 1.

  Further, the provision of the first engagement member side contact portion 659A and the second engagement member side contact portion 659B on the engagement member 650 as shown in FIG. Of these, the portion below the shaft 654 is specifically overlapped with the first component member 651 of the second component member 652 in which the engaging member 650 is formed together with the first component member 651. It can implement | achieve by making the part except an existing part into an L shape or a substantially L shape.

  Further, when the shutter curtain 1 in the closed movement comes into contact with the obstacle 34, the engaging member 650 rotates about the shaft 654 in the N direction in FIG. 29, so that the torsion coil spring 657 has the shaft 654. Thus, a repulsive force for rotating and biasing the engaging member 650 in the M direction is accumulated, and the torsion coil spring 657 accumulates the engaging member 650 in order to accumulate such a repulsive force. It is the elastic member provided in.

  Further, one end 657A of the torsion coil spring 657 is locked to the engaging member 650, and the other end 657B is immovably disposed on the shutter curtain 1 with respect to the engaging member 650. The torsion coil spring 657 is also an elastic member interposed between the engaging member 650 and the case 633.

  As shown in FIG. 30, 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. 30, 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 described above. The engagement member 650 rotates in the N direction about the shaft 654 in FIG. As a result, the engaging portion 653 of the engaging member 650 is engaged with the tooth portion 635A of the rotating member 635 as shown in FIG. 32 through the state of FIG. 31, and by this engagement, the rotating member 635 is engaged. Then, the take-up reel 637 combined with the rotating member 635 cannot be rotated in the rotation direction (S direction in FIG. 29) when the shutter curtain 1 is moving in the closing direction. The rotating member 635 and the take-up reel 637 are locked by the engaging member 650 and cannot be rotated.

  For this reason, at this time, the locking wire 36 partially wound around the take-up reel 637 and the shutter curtain 1 on which the take-up reel 637 is arranged are mechanically coupled. Therefore, in this embodiment, the mechanical coupling device 55 for mechanically coupling the locking wire 36 and the shutter curtain 1 is configured by the rotating member 635, the engaging member 650, and the like.

  When the shutter device is a shutter device for disaster prevention and the shutter curtain 1 is closing and moving, in other words, when the automatic closing device 32 is in the state shown in FIG. 15 and the shutter curtain 1 is closing and moving. In addition, when the obstacle 34 shown in FIG. 1 exists below the shutter curtain 1 in the closing movement direction, the front end portion on the closing side of the shutter curtain 1 during the closing movement of the shutter curtain 1. The movable portion 70B disposed in contact with the obstacle 34 stops the lowering of the movable portion 70B.

  Even if the lowering of the movable portion 70B stops, the curtain main portion 71A described above is lowered, so that the swing member 81 swings upward about the fulcrum shaft 80 as shown in FIG. Accordingly, the engaging member 650 constituting the mechanical coupling device 55 is rotated in the N direction around the shaft 654 in FIG. 29 by the pressing member 54 provided on the swinging member 81 as described above. Thus, the state shown in FIG. 32 is obtained after the state shown in FIG. 31, and the engaging portion 653 of the engaging member 650 is engaged with the tooth portion 635A of the rotating member 635.

  Accordingly, the rotating member 635 and the take-up reel 637 that have been rotated in the S direction in FIG. 29 when the shutter curtain 1 is closed and moved can be rotated in this S direction because they are locked by the engaging member 650. Thus, the shutter curtain 1 and the locking wire 36 fed from the take-up reel 637 are coupled by the mechanical coupling device 55. 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 in this way, a downward tension force due to the weight excluding the movable portion 70B of the weight of the shutter curtain 1 acts on the locking 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. As a result, the slide member 120 of the automatic closing device 32 moves in the backward direction as shown in FIG. 16 via the delay device 38 and the first control wire 111 shown in FIG. The brake device 19 of the switch 13 is switched from off to on.

  Further, even if the obstacle 34 is a hard object that does not dent or deform hardly, when the engaging member 650 is rotated in the N direction of FIG. 29 by the pressing member 54 of the swinging member 81, it is shown in FIG. As shown, the first engaging portion 653A of the first engaging portion 653A and the second engaging portion 653B provided as two engaging portions 653 on the engaging member 650 is the first engaging portion 653A of the rotating member 635. The second engaging portion 653B is engaged with the tooth portion 635A of the rotating member 635, and then the tooth portion 635A is engaged. Of these engagements, at least the engagement of the first engagement portion 653A with the tooth portion 635A is performed on the engagement member 650 in the longitudinal direction of the engagement member 650, as shown in FIG. Of the first engagement member side contact portion 659A and the second engagement member side contact portion 659B which are provided as two engagement member side contact portions 659 apart from each other, the center of rotation of the engagement member 650 is provided. The first engagement member side contact portion 659A located far from the shaft 654 serving as the shaft is pushed up by the pressing member 54 serving as the shutter curtain side contact portion 658.

  The interval between the first engaging portion 653A and the second engaging portion 653B is the same as or substantially the same as the interval (tooth pitch) between the teeth 635A of the rotating member 635, or between the teeth 635A. Since it is a dimension that is an integer multiple of two or more than the interval dimension, or a dimension that is approximately an integral multiple, when the first engagement portion 653A engages with the tooth portion 635A, the second engagement portion 653B also engages with the tooth portion 635A. Match.

  FIG. 33 shows a partially enlarged view of FIG. 32 when the first engaging portion 653A and the second engaging portion 653B are engaged with the tooth portion 635A of the rotating member 635 as described above. When the first engaging portion 653A engages with the tooth portion 635A of the rotating member 635 and the second engaging portion 653B engages with the tooth portion 635A of the rotating member 635, or the first engaging portion 653A rotates. After engaging the tooth portion 635A of the member 635 and engaging the second engaging portion 653B with the tooth portion 635A of the rotating member 635, or after engaging the tooth portion 635A of the rotating member 635, the first engaging portion 653A is engaged. After the second engaging portion 653B is engaged with the tooth portion 635A of the rotating member 635, the second engaging member side contact of the engaging member 650 as shown in FIG. The portion 659B comes into contact with the pressing member 54 and is pushed up. That is, the pushing-up of the engaging member side abutting portion 659 of the engaging member 650 performed by the pressing member 54 is the same as the first engaging member side abutting portion 659A provided as two places on the engaging member 650. Of the second engagement member side contact portion 659B, the first engagement member side contact portion 659A is first performed, and then the second engagement member side contact portion 659B is performed. For this reason, the pushing-up of the engagement member side contact portion 659 of the engagement member 650 by the pressing member 54 sequentially shifts from the first engagement member side contact portion 659A to the second engagement member side contact portion 659B. This push-up is performed in two stages.

  For this reason, in FIG. 33, the rotation of the engagement member 650 in the N direction is performed in two stages. Therefore, after the first engagement portion 653A is engaged with the tooth portion 635A of the rotation member 635. In addition, the rotation of the engaging member 650 in the N direction continues, so that even if the first engaging portion 653A of the engaging member 650 is disengaged from the engagement with the tooth portion 635A of the rotating member 635, the second The engaging portion 653B continues to engage with the tooth portion 635A of the rotating member 635, and the second engaging portion 653B rotates the rotating member 635 in the T direction. This rotation in the T direction is a rotation in a direction in which the take-up reel 37 winds the lock wire 36.

  The second engagement portion 653B rotates the rotation member 635 in the T direction in this way because the distance from the shaft 654 that is the rotation center of the engagement member 650 is the first engagement member side. Since the second engagement member side contact portion 659B that is shorter than the contact portion 659A is pushed up by the pressing member 54, the amount of rotation of the rotating member 635 by the second engagement portion 653B in the T direction is The amount of rotation of the rotating member 635 in the T direction by the first engaging member side contact portion 659A is larger than the amount of rotation. For this reason, the winding length of the lock wire 36 by the winding reel 637 coupled and integrated with the rotating member 635 is increased stepwise, and therefore the shutter curtain 1 that is moving in a closed state hits the obstacle 34. Even when the amount of relative rise of the curtain sub-portion 71B with respect to the curtain main portion 71A at the time of contact is constant, the lock wire 36 of the take-up reel 637 is locked as in the case where the obstacle 34 is greatly dented and deformed. The winding length can be increased, and a sufficient amount of pulling downward of the lock wire 36 can be ensured.

  For this reason, even when the obstacle 34 is hard so as not to be dented and deformed, the obstacle 34 has been dented and deformed in the lock wire 36 coupled to the shutter curtain 1 by the mechanical coupling device 55. Like sometimes, it can be pulled down sufficiently.

  The number of engaging portions 653 provided on the engaging member 650 is two in this embodiment, but the number may be three or more. Also, the number of locations of the engaging member 650 pushed up by the pressing member 54 may be three or more.

  In addition, the engaging member 650 rotates in the N direction in FIG. 29 when the shutter curtain 1 that is being closed is in contact with the obstacle 34, whereby the engaging portion 653 of the engaging member 650 is engaged with the teeth of the rotating member 635. When engaging the portion 635A, the tip of the engaging portion 653 and the tip of the tooth portion 635A come into contact with each other, so that the engagement portion 653 and the tooth portion 635A may be in a deadlock state. Therefore, for example, the pressing member 54 described above is formed of an elastic member such as a leaf spring, or the contact portion of the engaging member 650 with the pressing member 54 is formed of an elastic member such as a leaf spring. By using the elastic portion, when the tip of the engaging portion 653 and the tip of the tooth portion 635A are abutted, the pressing member 54 and the elastic portion are elastically deformed by the abutting reaction force. The tip of the joint portion 653 is temporarily displaced in a direction away from the tip of the tooth portion 635A, and after this displacement, the engaging portion 653 of the engaging member 650 is moved by the elastic repulsive force of the pressing member 54 and the elastic portion at the time of the displacement. You may make it engage with the tooth | gear part 635A of the rotation member 635 in which rotation progresses a little.

  As can be seen from the above description, in the embodiment shown in FIGS. 28 to 33, a pulling device for pulling the locking wire 36 downward to turn on the brake device 19 by the engaging member 650, the rotating member 635, or the like. 56 is configured.

  Also in this embodiment, as can be seen from the above description, when the lock wire 36 is pulled in the direction to turn on the brake device 19 by the pull device 56, the lock wire 36 has a take-up reel 637. Only the pulling force due to the winding of the wire acts, and the load such as the clamping force and the rubbing force does not act. Therefore, the safety of the locking wire 36 can be ensured.

  In each of the embodiments described above, the winding device 40 for winding the locking wire 36 so as to be freely drawn out is disposed on the shutter curtain 1.

  On the other hand, in the embodiment of FIG. 34 in which the opening / closing machine 13 and the automatic closing device 32 are omitted, the winding device 40 for winding the locking wire 36 freely is arranged on the shutter curtain 1. However, it is disposed on a stationary member that is stationary with respect to the shutter curtain 1 that opens and closes, specifically, on the lintel 16 shown in FIG. The lintel 16 is provided with the delay device 38 described with reference to FIG. 11, and the lock wire 36 extending downward from the delay device 38 faces upward in the case 733 disposed on the shutter curtain 1. It is folded back and reaches the winding device 40. In the case 733, one or more guide members for guiding the lock wire 36 are accommodated.

  Such a guide member is moved by a device similar to the pulling device shown in FIG. 22 when the shutter curtain 1 abuts against an obstacle during the closing movement, or inside the case 733, 2 By changing the linear portion of the locking wire 36 spanned between the individual guide members into a non-linear shape by a device similar to the pulling device shown in FIGS. The wire 36 can be pulled downward, in other words, against the delay device 38.

  In the embodiment shown in FIG. 34, the delay device 38 and the winding device 40 may be connected to each other.

  In the embodiment of FIG. 35 in which the opening / closing machine 13 and the automatic closing device 32 are omitted as in FIG. 34, the bridging member having a portion spanned between the shutter curtain 1 and the stationary member is flexible. This is a roller chain 836 that is a string-like member having the property. The roller chain 736 extends downward from the delay device 38 disposed in the lintel 16 inside the guide rail 6, and each of the roller chains 736 is rotatably disposed on the shutter curtain 1. After reaching around the members 801 to 803, it reaches the lower end of the guide rail 6 and is connected to the lower end. The first to third guide members 801 to 803 are sprocket wheels, and the second guide member 802 is disposed inside a case 833 provided on the shutter curtain 1.

  In this embodiment, at least one guide member among the first to third guide members 801 to 803 is moved by a device similar to the pulling device shown in FIG. 22, or two guide members. The linear portion of the roller chain 836 spanned between the two is changed non-linearly by a device similar to the pulling device shown in FIGS. 18 and 20, thereby pulling the roller chain 836 downward. be able to. Moreover, the roller chain 836 can be pulled downward by rotating the second guide member 802 with a device similar to the pulling device according to the embodiment of FIGS.

  In each of the embodiments described above, the lock wire 36 and the roller chain 836 are connected to the slide member 120 of the automatic closing device 32 via the delay device 38 and the first control wire 111. The delay device 38 and the first control wire 111 may be omitted, and the lock wire 36 and the roller chain 836 may be directly connected to the slide member 120 of the automatic closing device 32.

  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.

Claims (8)

An opening / closing body that opens and closes, a string-like member that is coupled to the opening / closing body when the opening / closing body abuts against an obstacle during the closing movement, and a tension force that acts on the string-like member. A brake device for stopping the closing movement of the opening / closing body, and for pulling the string-like member in a direction to turn on the brake device simultaneously with and / or after the contact of the opening / closing body with the obstacle In the opening / closing body stop device of the opening / closing device configured to include a pulling device,
A winding device that winds up the string-like member so that the string-like member can be unwound freely; It is a device that performs the operation of winding the member,
The winding device has a winding reel that winds the string-like member so that the string-like member can be unwound freely. It is a device that causes the take-up reel to rotate to wind up the string-like member when the opening / closing body abuts against the obstacle ,
The winding device includes a rotating member having a plurality of teeth formed on an outer peripheral portion and coupled and integrated with the winding reel. The winding device rotates around the shaft. An engaging member that engages with the tooth portion of the rotating member by moving is provided, and the engaging reel engages with the tooth portion of the rotating member, whereby the take-up reel disengages the string-like member. An opening / closing body stopping device for an opening / closing device, wherein the opening / closing device is turned up.   2. The opening / closing body stopping device for an opening / closing device according to claim 1, wherein the engaging member is rotated about the shaft even after being engaged with the tooth portion of the rotating member, and the winding is caused by the rotation. An opening / closing body stop device for an opening / closing device, wherein the reel is rotated to wind the string-like member.   3. The opening / closing body stop device for an opening / closing apparatus according to claim 2, wherein the opening / closing body includes an opening / closing body main part and the opening / closing body main part when the opening / closing body contacts the obstacle during the closing movement. An opening / closing body sub-portion that moves relative to the first movable member and the opening / closing body main portion with respect to the first movable member. And a second movable member disposed on the opposite side of the first movable member, and an elastic member disposed between the first movable member and the second movable member. The elastic member is elastically contracted and deformed when contacted, so that the engaging member rotates about the shaft even after engaging the tooth portion of the rotating member. Opening and closing body stop device.   3. The opening / closing body stopping device for an opening / closing device according to claim 2, wherein the engaging member is provided with a plurality of engaging portions on an arc or substantially an arc centered on the axis. An opening / closing body stop device for an opening / closing device, wherein the winding reel performs rotation to wind up the string-like member when the joint portion engages with the tooth portion of the rotating member in order.   3. The opening / closing body stop device for an opening / closing apparatus according to claim 2, wherein the rotation of the engaging member about the shaft when the opening / closing body abuts on the obstacle is at least two stages of rotation. An opening / closing body stopping device for an opening / closing device, wherein the winding reel performs a rotation for winding the string-like member by the rotation of at least two stages.   6. The opening / closing body stop device for an opening / closing apparatus according to claim 5, wherein the opening / closing body includes an opening / closing body main part and the opening / closing body main part when the opening / closing body contacts the obstacle during the closing movement. An opening / closing body sub-portion that moves relative to the opening / closing body, and the movement of the opening / closing body sub-portion causes the engagement member to rotate at least in two stages around the shaft. apparatus.   7. The opening / closing body stop device for an opening / closing apparatus according to claim 6, wherein a plurality of push-up forces act on the engaging member in order when the opening / closing body sub-portion moves relative to the opening / closing body main portion. An opening / closing body stopping device for an opening / closing device, characterized in that the engagement member rotates at least two stages around the shaft by a push-up force that is provided in order to the portions. The opening / closing body stop device for an opening / closing device according to claim 7, wherein the distances from the shaft at the plurality of locations are different, and the distance from the shaft at the location where the push-up force acts first. Also, the opening / closing body stopping device for the opening / closing device, characterized in that the distance from the shaft at the portion where the pushing force is finally applied is shortened.

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