JP6600504B2 - Opening / closing member stop device for opening / closing device - Google Patents

Description

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

  In Patent Document 1 below, there is an obstacle in the closing direction of the shutter curtain that is an opening / closing body that opens and closes, and the shutter curtain is closed when the closing shutter curtain comes into contact with the obstacle. An apparatus for stopping movement is shown. This device has a brake device for stopping and moving a shutter curtain that can be opened and closed by turning it on and off, and one direction for switching this brake device on and off, and the other opposite to this direction. By mechanically connecting the shutter curtain and the string-like member when the sliding curtain that is movable in the direction of the movement and the shutter curtain being moved in close contact with the obstacle, A mechanical coupling device for applying a tension force for turning on the brake device by moving the slide member in the one direction by the dead weight of the shutter curtain, and for turning off the brake device Return means for returning the brake device to the on-state by moving the slide member that has been moved in the other direction in the one direction. It has become a thing to be.

  And the said return means in patent document 1 becomes a string-like member, such as a wire, and when this slid member is moving in the said other direction in order to turn off a brake device, this string-like member is used. When the pulling operation is performed, the slide member moves in the one direction, and the brake device is turned back on.

JP 2014-1582 A (paragraphs 0132 to 0134, FIGS. 11 to 16)

  Since the return means shown in Patent Document 1 is a string-like member that is pulled, the slide member that has moved in the other direction to turn off the brake device is moved in the one direction. In order to move the brake device back on, the string-like member must be pulled manually.

  An object of the present invention is to make it possible to perform an operation for moving the slide member that has turned off the brake device and turning the brake device back on by an electrical operation using a switch or the like. The present invention is to provide an opening / closing body stopping device for an opening / closing device which can be performed in a short time.

  An opening / closing body stopping device for an opening / closing apparatus according to the present invention includes a brake device for stopping and moving an openable / closable opening / closing body by turning on / off, and one of the brake devices for switching on / off the brake device. A sliding member that is movable in the direction opposite to this direction and the opening and closing body and the string-like member mechanically when the closing and moving opening and closing body abuts against an obstacle. A mechanical coupling device for causing a tension force for turning on the brake device by the weight of the opening and closing body to act on the string-like member by moving the slide member in the one direction; Return means for turning the brake device back on by moving the slide member that has been moved in the other direction to turn off the brake device in the one direction; In closing body stop device of the switching device for the return means, it is characterized in that it is an electrical means for moving an electric force the sliding member in the direction of the one.

  In the opening / closing body stopping device of the opening / closing device, the return means for returning the brake device to the on state by moving the slide member that has been moved in the other direction to turn off the brake device in the one direction is Since the slide member is an electric means for moving the slide member in the one direction by an electric force, the electric means can be driven by an electric operation using a switch or the like. When driven by the electrical operation device, the slide member moves in the one direction and the brake device returns to the on state. Therefore, the operation for returning the brake device to the on state can be easily performed by using an electrical operation device such as a switch. You can do it.

  The electrical means in the opening / closing body stopping device of the opening / closing device is configured to move the slide member that has been moved in the other direction to turn off the brake device by performing an electrical operation such as a switch. Any electrical means may be used as long as the brake device can be turned back on and one of them is an electric motor, and the other is a solenoid.

  When the electric means is an electric motor, for example, the drive shaft of the electric motor is connected to a pinion gear that meshes with a rack portion provided on the slide member, and the rotation of the pinion gear causes the drive shaft to rotate. The rotational force may be transmitted to the slide member as a moving force in the one direction via the rack portion.

  Further, in such a configuration, the rotation of the pinion gear when the slide member moves in the other direction is not transmitted to the drive shaft between the drive shaft of the electric motor and the pinion gear. When the shaft rotates in the direction of moving the slide member in the one direction via the pinion gear and the rack portion, a one-way clutch for transmitting the rotation to the pinion gear may be provided.

  According to this, when the sliding member moves in the other direction in order to turn off the brake device, the rotation of the pinion gear is not transmitted to the drive shaft due to the cutting action of the one-way clutch. Does not become a generator, the slide member can be quickly moved in the other direction, the brake device can be turned off instantaneously, and the slide member can be turned on to turn on the brake device. When moving in one direction, the rotation of the drive shaft of the electric motor can be transmitted as a moving force in the one direction to the slide member via the pinion gear and the rack portion by the connecting action of the one-way clutch.

  As described above, in order to connect the drive shaft of the electric motor to the pinion gear that meshes with the rack portion provided on the slide member, the pinion gear may be fitted to the drive shaft, or the drive The shaft and the pinion gear may be coupled via an intermediate mechanism such as a gear mechanism.

  In addition, when the pinion gear is fitted to the drive shaft, the one-way clutch is provided between the drive shaft and the pinion gear by fitting the pinion gear to the drive shaft via the one-way clutch. In addition, when the drive shaft and the pinion gear are connected via an intermediate mechanism, this can be realized by providing a one-way clutch in the intermediate mechanism.

  Further, when the electrical means described above is a solenoid, for example, a solenoid plunger and a slide member may be connected via a lever member.

  When the solenoid plunger and the slide member, which are electrical means as described above, are connected via the lever member, the connection structure between the plunger and the lever member is the same as the other direction. The movement of the lever member when moving to the plunger is not transmitted to the plunger, and when the plunger performs the movement for moving the slide member in the one direction, the movement is transmitted to the slide member via the lever member. It is good.

  Such a structure can be realized, for example, when the solenoid plunger has a pressing member that presses the lever member when the plunger moves backward with respect to the solenoid body. By pressing, the slide member can be moved in one direction via the lever member.

  Further, according to this structure, when the slide member moves in the other direction in order to turn off the brake device, the plunger pressing member and the lever member are not in contact with each other, so that the slide member is affected by the lever member. And can be quickly moved in the other direction, so that the brake device can be turned off instantaneously.

  The pressing member provided on the plunger is preferably a rotating member that is rotatably attached to the plunger.

  According to this, when the plunger moves backward with respect to the main body of the solenoid, the pressing member presses the lever member, and when the lever member moves by this pressing, the pressing member rotates. A pressing force can be applied without generating a frictional force or the like.

  In the present invention described above, when the slide member described above is movably disposed on the machine frame, an electric means such as an electric motor or a solenoid may be disposed inside the machine frame, or Electrical means may be arranged outside the machine frame.

  When the electric means is arranged inside the machine frame in which the slide member is movably arranged, the electric means can be protected by the machine frame, and the electric means can be moved by the slide member. When it is arranged outside the machine frame, the maintenance work for the electric means can be easily performed without being influenced by the machine frame.

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

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

  Further, the slide member that is movable to switch the brake device on and off is a member that constitutes an automatic closing device for closing and moving the opening / closing body that has reached the fully open position or the like. Alternatively, it may be a member constituting a device other than the automatic closing device.

  Further, when the opening / closing body in the closing movement comes into contact with an obstacle, the opening / closing body and the string-like member are mechanically coupled to each other to move the slide member in the one direction to the string-like member. The above-described mechanical coupling device for applying the tension force for turning on the brake device by the weight of the opening / closing body is rotatably arranged on the opening / closing body, and the rotating body for winding the string-like member so that the string-like member can be drawn out. And a locking member such as a swingable locking member for locking the rotating body and stopping the rotation of the rotating body by moving when the opening / closing body moving in contact with the obstacle moves. Alternatively, the opening / closing body is provided on both sides of the string-like member, and swings from both sides of the string-like member when the closing / moving opening / closing body contacts an obstacle. Lever for clamping the string-like member Or it may have two clamping members by members or the like.

  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, the operation for moving the slide member that has turned off the brake device to turn the brake device back on can be performed by electrical operation using a switch or the like. The effect of being able to do is 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 a state where the shutter curtain being moved in close contact comes in contact with an obstacle. FIG. 6 is a side sectional view showing an internal structure of the case shown in FIGS. 4 and 5. 7 is a front sectional view showing the internal structure of the case of FIG. FIG. 8 is a view similar to FIG. 7 showing when the shutter curtain that is being closed is in contact with an obstacle. FIG. 9 is an enlarged front view showing the lock member shown in FIGS. 7 and 8. FIG. 10 is a side sectional view showing the direction changing device shown in FIGS. 1 and 2. FIG. 11 is a front view showing the internal structure of the composite device including the automatic closing device shown in FIGS. 1 to 3, and is an electrical device for moving the slide member to turn on the brake device. It is a figure which shows embodiment which made the means an electric motor. FIG. 12 is a plan view showing the internal structure of the composite apparatus of FIG. FIGS. 13A and 13B are plan views showing the intermediate device and the automatic closing device which are the devices constituting the composite device of FIGS. 11 and 12 separately. 14A and 14B are plan views showing the intermediate device and the automatic closing device separately when the solenoid of the automatic closing device is energized and excited due to a disaster such as a fire. 15A and 15B are plan views showing the intermediate device and the automatic closing device separately when the energization and excitation of the solenoid of the automatic closing device are stopped. FIGS. 16A and 16B are plan views showing the intermediate device and the automatic closing device separately when the shutter curtain that is being closed is in contact with an obstacle. FIG. 17 is a view similar to FIG. 11 showing an embodiment in which the electrical means for moving the slide member to turn on the brake device is a solenoid. 18 is a view corresponding to FIG. 15 in which the arrangement positions of the lever member and the solenoid are enlarged in the embodiment of FIG. FIG. 19 is a view corresponding to FIG. 16 in which the arrangement positions of the lever member and the solenoid are enlarged in the embodiment of FIG. FIG. 20 is an enlarged view showing the arrangement position of the lever member and the solenoid when the slide member with the brake device turned off moves back to the position where the brake device is turned on in the embodiment of FIG.

  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 is configured such that the shutter curtain having a disaster prevention function such as smoke prevention closes and moves when an abnormal situation such as a fire occurs, so that the shutter curtain is fully closed by the shutter curtain. Function as a shutter device for disaster prevention in order to form a disaster prevention section in the structure of the door, and the shutter curtain can be opened, closed, moved and moved by operating the operation device to open and close openings such as doorways by the shutter curtain And a function as a management shutter device for stopping.

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

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

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

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

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

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

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

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

  Among the left and right building housings 3A and 3B shown in FIG. 1, in one building housing 3A, the shutter curtain 1 is opened and moved upward with respect to the entrance 2 and closed and moved downward. An operation device 30 is attached to cause the operation to be performed. The operation device 30 which is an electrical operation device is provided with an “open” button, a “close” button, and a “stop” button. Further, the shutter curtain 1 occupies most of the area of the shutter curtain 1, and a curtain body 1A whose upper end is coupled to the winding shaft 11 and a seat plate 1B provided at the lower end of the curtain body 1A. And has. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  As shown in FIGS. 4 and 5, the case 33 shown in FIG. 1 is attached to the fixing portion 70A of the seat plate 1B, and the inside of the case 33 is shown in FIGS. Is shown in As shown in FIG. 7, inside the case 33, there are a rotating member 35 that is a gear having a large number of teeth 35 </ b> A formed at equal intervals in the circumferential direction, and a take-up reel 37. Are housed so as to be rotatable about a shaft 41 which is a fixed shaft fixed to the case 33, and 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 extending downward from the lintel 16 portion has a shaft 29 </ b> A inside the case 33. Is wound around a take-up reel 37 through a guide roller 29 accommodated so as to be freely rotatable, and the upper portion of the lock wire 36 is directed upward from a hole 33A formed in the upper surface of the case 33. It extends. The upper end of the locking wire 36 extends to the direction changing device 38 shown in FIGS. 1, 2, and 10.

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

  As shown in FIG. 6, a space 37A is formed inside the take-up reel 37, and a return spring 39, which is partially omitted in FIG. The return spring 39 housed and wound around the outer periphery of the shaft 41 that is the rotation center axis of the rotary member 35 and the take-up reel 37 is a mainspring spring, and one end portion of the return spring 39 Is coupled to a shaft 41 which is a member on the case 33 side, and the other end is connected to a take-up reel 37 integrated with the rotating member 35. Therefore, when the rotating member 35 and the take-up reel 37 rotate in the S direction and the shutter curtain 1 closes and moves downward, the take-up reel 37 that rotates to feed the lock wire 36 to the return spring 39. When the shutter curtain 1 is opened and moved upward, the take-up reel 37 rotates in the T direction opposite to the S direction due to the accumulated pressure accumulated in the return spring 39 when the shutter curtain 1 moves upward. The wire 36 is wound around a take-up reel 37.

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

  In this embodiment, the return spring 39 by the mainspring spring is housed in a space portion 37A formed inside the take-up reel 37, so that the case 33 has a small size in the thickness direction of the shutter curtain 1 with respect to the case 33. 6, the dimension in the thickness direction of the shutter curtain 1 with respect to the take-up reel 37 can be made sufficiently large, so that the take-up length of the lock wire 36 by the take-up reel 37 is sufficient. Thus, the shutter curtain 1 can be adapted to a shutter device having a long opening / closing movement distance.

  As shown in FIG. 7, a lock member 50 that is rotatable up and down around a shaft 56 provided in the case 33 is housed in the case 33. The lock member 50 of the present embodiment includes a main member 52 that does not have an engaging portion 53 that can engage with a tooth portion 35 </ b> A of the rotating member 35 that is a gear, and the width direction of the shutter curtain 1. The secondary member 51 is fastened to the main member 52 having a length of 5 mm and has an engaging portion 53. In this way, the lock member 50 is formed into a combined structure in which the sub member 51 and the main member 52 that are separate parts are overlapped in the thickness direction of the shutter curtain 1, so that the tooth portion 35 </ b> A of the rotating member 35 is formed. Even if the entire locking member 50 is not hardened by quenching the sub member 51 in which the engaging portion 53 to be engaged is formed, the engaging portion 53 is similar to the tooth portion 35A of the rotating member 35. In addition, great strength can be imparted. Further, by making the sub member 51 made of a hard metal that is harder than the main member 52, the entire lock member 50 does not have to be formed of an expensive hard material.

  In the present embodiment, as shown in FIG. 9, as the engaging portions 53 of the lock member 50, there are a plurality of engaging portions separated in the rotation direction of the lock member 50 around the shaft 56. These engagement portions 53 in this embodiment are a first engagement portion 53A, a second engagement portion 53B, and a third engagement portion 53C, and these engagement portions 53A, 53B, 53C. Is provided on a circular arc or a substantially circular arc centering on a shaft 56 that is the center of rotation of the lock member 50.

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

  Further, as can be seen from FIG. 7, the lock member 50 is provided with a torsion coil spring 57. As shown in FIG. 9, one end portion 57 </ b> B of the torsion coil spring 57 in which the coil portion 57 </ b> A is wound around the outer periphery of the shaft 56 is a length formed in the main member 52 and the sub member 51. By being inserted into the hole 50A, it is locked to the lock member 50, and the other end portion 57C of the side surface portions 33B and 33C of the case 33, as shown in FIG. By being inserted into the hole of the bent portion 33D formed at the lower end of the side surface portion 33C, the side portion 33C is locked to the case 33. For this reason, the torsion coil spring 57 is provided between the shaft 56 and the lock member 50 and the case 33, and the lock member 50 is centered on the shaft 56 by the spring force of the torsion coil spring 57 in FIG. It is urged to rotate in the M direction. As a result, a part of the lock member 50 swings up and down freely around the pressing member 54 provided in the shutter curtain 1, that is, around the fulcrum shaft 80 provided in the curtain main portion 71A of the shutter curtain 1. The pressing member 54 disposed on the member 81 is in contact with the pressing member 54.

  For this reason, as will be described later, the shutter curtain 1 and the lock member 50 have the lock member 50 in the M direction in FIG. 7 when the shutter curtain 1 being moved in contact with the obstacle 34. A shutter curtain side contact portion 58 and a lock member side contact portion 59 that are in contact with each other in order to rotate in the opposite N direction are provided. The shutter curtain side contact portion 58 is formed by the pressing member 54, and the lock member side contact portion 59 is connected to the first lock member side contact portion 59 </ b> A and the second lock in the main member 52 of the lock member 50. There are two member side contact portions 59B. The first lock member side contact portion 59A and the second lock member side contact portion 59B are separated from each other in the width direction of the shutter curtain 1.

  Further, providing the lock member 50 with the first lock member-side contact portion 59A and the second lock member-side contact portion 59B as described above, as shown in FIGS. It can implement | achieve by making the part which does not overlap with the submember 51 among the main members 52 to comprise into L shape or a substantially L shape.

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

  Further, before the case 33 in which the rotating member 35, the take-up reel 37, the guide roller 29, and the like are accommodated is attached to the fixing portion 70 </ b> A of the shutter curtain 1, the lock member 50 is caused by the spring force of the torsion coil spring 57. In order to prevent the first lock member-side contact portion 59A of the lock member 50 from largely projecting from the lower surface opening of the case 33 even if it is urged to rotate in the M direction in FIG. The lock member 50 is provided with a stop member 63 that abuts on the lower end bent portion 33E of the side surface portion 33B of the case 33 shown in FIG.

  As shown in FIG. 6, the seat plate 1 </ b> B of the shutter curtain 1 during the closing movement comes into contact with the obstacle 34 shown in FIG. 1. As shown in FIG. 6, the fixing portion 70 </ b> A ( When the movable portion 70B (curtain sub-portion 71B) rises relative to the curtain main portion 71A), the swing member 81 swings upward about the fulcrum shaft 80. 50 rotates in the N direction around the shaft 56 in FIG. Thereby, as shown in FIG. 8, the engaging portion 53 of the lock member 50 is engaged with the tooth portion 35 </ b> A of the rotating member 35, and by this engagement, the rotating member 35, the rotating member 35, The winding reel 37 combined and integrated cannot rotate in the rotation direction (S direction in FIG. 7) when the shutter curtain 1 is moving in the closing direction. 37 is locked by the lock member 50 and cannot be rotated.

  For this reason, at this time, the lock wire 36 partially wound on the take-up reel 37 and the shutter curtain 1 on which the take-up reel 37 is disposed are mechanically coupled. Therefore, in 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 locking member 50, and the like.

  As described above, the lock member 50 is configured by stacking the main member 52 having the length in the width direction of the shutter curtain 1 and the sub member 51 in the thickness direction of the shutter curtain 1. As shown in FIG. 9, the sub member 51 is attached to the main member 52 so as to be rotatable about a rotation center shaft 61. The main member 52 is formed with an arc-shaped long hole 52A centering on the rotation center shaft 61, and is a fastening screw member inserted into the long hole 52A in the round hole of the sub member 51. The shaft portion of the bolt 62 is inserted, and the sub member 51 is fastened to the main member 52 with the bolt 62 and the nut by tightening a nut screwed into the end portion of the shaft portion of the bolt 62 protruding from the long hole 52A. Is done. Further, when the nut is loosened, the sub member 51 can be rotated with respect to the main member 52 about the rotation center shaft 61 by the elongated hole 52A for guiding the shaft portion of the bolt 62. As a result, the sub-member 51 whose position with respect to the main member 52 has been changed and adjusted can be fastened to the main member 52 again with bolts 62 and nuts.

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

  The small-diameter portion 56A of the shaft 56 is inserted into the round hole of the main member 52 so that the sub member 51 can be rotated about the rotation center shaft 61 with respect to the main member 52. As shown in FIG. 9, the hole 51A formed in the sub member 51 for inserting the small-diameter portion 56A is an arc-shaped long hole centered on the rotation center shaft 61. It has become. The coil portion 57A of the torsion coil spring 57 is wound around the outer periphery of the large-diameter portion 56B of the shaft 56.

  In the present embodiment, the position of the sub member 51 relative to the main member 52, more specifically, the rotation center shaft 61 is determined by the rotation center shaft 61 and the bolt 62 having a nut screwed into the shaft portion. The position adjusting means 64 shown in FIG. 9 for adjusting the position of the sub member 51 with respect to the main member 52 as the center is configured.

  When the position adjusting means 64 adjusts the position of the sub member 51 with respect to the main member 52 around the rotation center shaft 61, as can be seen from FIG. 9, the tip of the engaging portion 53 of the lock member 50 and the rotating member Since the size of the gap 65 between the tips of the tooth portions 35A of the 35 changes and is adjusted, the position adjusting means 64 also becomes a gap adjusting means 66 that can adjust the size of the gap 65. In this embodiment, the gap adjusting means 66 is provided on the lock member 50.

  The case 33 can be loosened or tightened with a nut screwed to the shaft portion of the bolt 62, and the size of the gap 65 adjusted by the gap adjusting means 66 can be confirmed. A window hole or the like may be provided.

  Further, in the present embodiment, in order to allow the gap adjusting means 66 to adjust the size of the gap 65, the position of the rotation center shaft 61 is the rotation axis of the entire lock member 50. 9 is shifted in the width direction of the shutter curtain 1 from the position of the shaft 56, and as shown in FIG. This is the opposite direction.

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

  The coil portion 57A is wound around the outer periphery of the shaft 56, and the torsion coil spring 57 provided between the case 33, the shaft 56, and the lock member 50 causes the shaft 56 and the lock member 50 to be moved by the spring force. The torsion coil spring 57 is constantly urged toward the rotating member 35 indicated by the arrow X in FIG. 9 and is an elastic member having such an urging force. By the elastic biasing force of the elastic member, the shaft 56 is pressed against the end of the elongated hole 67 on the rotating member 35 side, whereby the size of the gap 65 becomes the size set by the gap adjusting means 66.

  FIG. 10 shows a specific structure of the direction changing device 38 shown in FIGS. 1 and 2. The direction changing device 38 determines the direction of the lock wire 36 that is a flexible string-like member extending vertically upward or substantially vertically upward from the case 33 of the shutter curtain 1 according to the thickness of the shutter curtain 1. This is for conversion to the horizontal direction or the substantially horizontal direction. The main body 38A of the direction changing device 38 is mounted and fixed to a step portion 16C formed horizontally or substantially horizontally on the upper or lower middle portion or the upper surface of the lintel member 16A among the members constituting the lintel 16 described in FIG. Has been. A plurality of guide rollers 90 are rotatably provided on the main body 38A.

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

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

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

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

  In this embodiment, as shown in FIG. 7, the locking wire 36 whose lower end is coupled to the take-up reel 37 is directly extended from the take-up reel 37 to the outside of the case 33. Instead, it extends to the outside of the case 33 through the guide roller 29, and the height position of the rotation center shaft 29A of the guide roller 29 is set to the rotation center shaft 41 of the take-up reel 37 as shown in FIG. As shown in FIG. 10, the shutter curtain 1 is opened to the fully opened position by setting the guide roller 29 to a position lower than the height position of the guide roller 29 or making the diameter of the guide roller 29 smaller than the diameter of the take-up reel 37. When moved, in other words, when the position of the lower surface of the seat plate 1B of the shutter curtain 1 coincides with or substantially coincides with the position of the lower surface of the lintel 16, the lock wire 36 Can be converted into a predetermined horizontal direction or a substantially horizontal direction by a direction changing device 38 disposed on the step portion 16C of the lintel member 16A which is a stationary member with respect to the shutter curtain 1 which is opened and closed. Yes.

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

  As shown in FIGS. 1 to 3, the composite device 100 is placed and fixed on the upper part of the switch 13. FIG. 11 is a front view showing the internal structure of the composite apparatus 100, and FIG. 12 is a plan view showing the internal structure of the composite apparatus 100. The composite device 100 is a device in which an automatic closing device 32, an intermediate device 200, and a delay device 300 are combined. The automatic closing device 32 brakes the switch 13 in the event of a disaster such as a fire. By controlling the device 19 mechanically, the shutter curtain 1 that has been stopped at the fully open position or in the middle of the opening and closing direction is automatically closed and moved to the fully closed position, and has smoke resistance and / or fire resistance. 1 for closing the doorway 2 of FIG. Therefore, the automatic closing device 32 is a mechanical control device for mechanically controlling the brake device 19 as described above.

  The composite apparatus 100 is attached to the upper part of the opening / closing machine 13 by a bracket part 110 </ b> A of FIG. 11 provided on the machine casing 110 of the composite apparatus 100. This state is also shown in FIG. Further, as shown in FIG. 12, the ends of the first control wire 111 and the second control wire 112 for controlling the composite device 100 are extended up to the composite device 100. These control wires 111 and 112 are flexible string-like members, and are also elongated members, like the aforementioned locking wires 36.

  The control wires 111 and 112 are slidably inserted into the flexible outer cables 114 and 115A. For this reason, the control wires 111 and 112 are protected by the outer cables 114 and 115A.

  As shown in FIGS. 1, 2, and 10, the first control wire 111 extends from the composite device 100 to the vicinity of the direction changing device 38, and the end of the first control wire 111 is As shown in FIG. 10, the locking wire 36 is connected via a connecting member 94. In addition, the end portion of the outer cable 114 of the first control wire 111 is coupled to the downward extension portion 92 </ b> B of the two downward extension portions 92 </ b> A and 92 </ b> B of the support member 92.

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

  As shown in FIGS. 11 and 12, the automatic closing device 32 and the intermediate device 200, each of which is a component of the composite device 100, are arranged in the machine casing 110 of the composite device 100. ing. In other words, the machine frame in which the automatic closing device 32 is arranged and the machine frame in which the intermediate device 200 is arranged are the same machine frame 110, and in this machine frame 110, the automatic closing device 32 and the intermediate device 200 are mutually connected. Adjacent to each other. Further, as will be apparent from the description to be described later, the above-described delay device 300 is also arranged in the machine casing 110. For this reason, the automatic closing device 32, the intermediate device 200, and the delay device 300 are formed as a single unit. For this reason, the factory for the automatic closing device 32, the intermediate device 200, and the delay device 300 is used. Therefore, handling work such as transport to the shutter device installation site and maintenance work can be easily performed.

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

  The intermediate device 200 is interposed between the first control wire 111 connected to the mechanical coupling device 55 shown in FIGS. 7 and 8 via the lock wire 36 and the automatic closing device 32. It is a deployed device. In other words, the intermediate device 200 is a connection device for directly connecting the first control wire 111 that is a string-like member and the automatic closing device 32.

  Next, the automatic closing device 32 will be described.

  As shown in FIGS. 11 and 12, the machine casing 110 of the composite apparatus 100 is provided with two rising portions 110B and 110C that face each other, and are formed in these rising portions 110B and 110C. The plate-like first slide member 120 of FIG. 13B having a length extending over the two rising portions 110B and 110C is slidably inserted into the holes 110D and 110E of FIG. A spring 121 is wound around the outer periphery of the first slide member 120. Due to the spring force of the spring 121, a forward force toward the rising portion 110B is constantly acting on the first slide member 120. The direction of the forward force is a direction in which the first portion 31A of the lever member 31 provided in the opening / closing machine 13 described in FIG.

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

  As shown in FIG. 13B, a solenoid 126 is attached to the machine casing 110 of the composite apparatus 100, and the plunger 127 of the solenoid 126 has a spring force of a spring 128 that causes the plunger 127 to solenoid. It always acts in the direction of protruding from 126. A distal end member 140 is attached to the distal end of the plunger 127, and one end of an L-shaped bent lever member 129 that is rotatable about the central axis 129A is in contact with the distal end member 140. Yes. As can be seen from FIG. 11, the tip member 140 having an inverted L shape has an upside-down member 141 on the surface opposite to the surface with which the one end of the bending lever member 129 is in contact. This raising / lowering member 141 is centered on the lower part through which a central shaft 142A (see also FIG. 11) by a screw provided at the rising portion of the bracket 142 shown in FIG. 13 (B) is inserted. It is easy to rise and fall.

  As shown in FIG. 11, the end portion of the second control wire 112 described above is connected to the upper portion of the raising / lowering member 141.

  And as FIG. 13 (B) 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 120B is formed in a portion of the first slide member 120 facing the roller 130, and a portion of the concave portion 120B on the retreat side of the first slide member 120 is an inclined surface 120C.

  Further, as shown in FIG. 13B, the automatic closing device 32 is provided with a first electric switch 135, and the first electric switch 135 attached to the machine casing 110 is a first electric switch by a spring. A swingable actuator 136 is urged in a direction protruding from the switch 135. In addition, a protrusion member 137 is attached to the first slide member 120 at a portion opposite to the recess 120 </ b> B, and the actuator 136 is in contact with the protrusion member 137.

  In the automatic closing device 32, a spring 131 for applying a turning force in the K direction about the central axis 129A to the bending lever member 129 and the end of the second control wire 112 are connected to each other. A spring 132 is provided for returning the raising / lowering member 141 to an upright state when the member 141 falls to the solenoid 126 side about the central shaft 142A. The spring force of the spring 131 causes the bending lever member 129 to move. The normal roller 130 provided at the other end described above is fitted into the recess 120B of the first slide member 120, as shown in FIG. 13B.

  Further, when the roller 130 is fitted into the recess 120B, the advancement of the first slide member 120 by the spring 121 described above is stopped. Thus, when the forward movement is stopped by the roller 130 fitted in the recess 120B, the position of the front end of the first slide member 120 is the three positions H, I, J shown in FIGS. 12 and 13B. Of these, the H position.

  Further, as shown in FIG. 13B, the first slide member 120 has a rack member 138 in which a rack portion 138A having a length in the moving direction of the first slide member 120 is formed. For this reason, the first slide member 120 is a member having a rack portion 138A. An electric motor 113 is attached to the bottom 110F of the machine casing 110 on which the first slide member 120 is arranged. As can be understood from the description below, the electric motor 113 is provided with the first slide member 120. Of the two rising portions 110B and 110C of the machine casing 110, this is an electrical means for retreating toward the rising portion 110C. A pinion gear 115 is fitted and coupled to the outer periphery of the drive shaft 113A facing upward of the electric motor 113 through a one-way clutch 116. The pinion gear 115 is provided on the first slide member 120. It meshes with the rack portion 138A.

  The one-way clutch 116 does not transmit this rotation to the drive shaft 113A when the first slide member 120 moves forward to the rising portion 110B side of the machine casing 110 and the pinion gear 115 rotates in the direction P in FIG. When the drive shaft 113A rotates in the Q direction, this rotation is transmitted to the pinion gear 115, whereby the rack portion 138A with which the pinion gear 115 is engaged causes the first slide member 120 to move to the frame 110. It is configured to retreat to the rising portion 110C side.

  Note that the one-way clutch 116 is, for example, in the one-way clutch housing fitted to the outer periphery of the drive shaft 113A, and the distance from the drive shaft 113A is gradually increased in the Q direction in the circumferential direction of the drive shaft 113A. A plurality of smaller spaces are formed in the circumferential direction of the drive shaft 113A, and balls that are elastically pushed in the Q direction by a spring are stored in these spaces. For this reason, when the pinion gear 115 rotates in the P direction, the ball moves toward one end of the space where the distance from the drive shaft 113A is large against the spring force of the spring. The rotation of the pinion gear 115 is not transmitted to the drive shaft 113A, and when the drive shaft 113A rotates in the Q direction, the other end side of the space where the distance between the ball and the drive shaft 113A is small. Therefore, the rotation of the drive shaft 113A is transmitted to the pinion gear 115 by the ball.

  As shown in FIG. 13B, the rack member 138 is also provided with a rising portion 138B in front of the rack portion 138A. Further, a second electric switch 117 with an actuator 118 for detecting the rear end portion of the rack portion 138A of the first slide member 120 is attached to the bottom portion 110F of the machine casing 110.

  Furthermore, the electric motor 113 is driven by the control signal of the above-described control device 26 to which the electric signal from the electric operation device 30 shown in FIG. 1 is input. Are provided with a switch or a button for driving the electric motor 113.

  The second control wire 112 having an end connected to the raising / lowering member 141 and inserted into the outer cable 115A extends to the operating device 30 shown in FIG. 1 and protrudes from the outer cable 115A. A manual operation member such as a lever member disposed in the operation device 30 is connected to the end of the second control wire 112.

  As can be seen from the above description, the automatic closing device 32 includes the first slide member 120 having the recess 120B, the bending lever member 129 having the solenoid 126 and the roller 130, the first electric switch 135, the electric motor 113, The first electric switch 117 is configured to be a reciprocating member that can reciprocate linearly in one direction with respect to the machine casing 110 and the other direction opposite to the direction. As can be seen from the description below, the slide member 120 is a switching member that operates to mechanically switch the brake device 19 on and off.

  Next, the intermediate device 200 shown in FIG. 13A will be described.

  As shown in FIG. 13A, the above-described machine casing 110 of the composite apparatus 100 includes a first rotating member 201 that is rotatable about a central axis 201A and a center axis 202A. A movable second rotating member 202 is provided, and these rotating members 201 and 202 rotate in the horizontal direction. Further, the lower ends of the central shafts 201A and 202A are supported by the bottom portion 110F of the machine casing 110, and the upper ends of the central shafts 201A and 202A are supported by a bracket 203 coupled to the machine casing 110 as shown in FIG. Has been. As shown in FIG. 13A, the first rotating member 201 is provided with a fan-shaped portion 201B having a fan shape centered on the central axis 201A in the horizontal direction. Of the wire 111, the portion inserted into the machine casing 110 is in a state of being detachably wound around the outer peripheral surface of the fan-shaped portion 201 </ b> B, and the end of the first control wire 111. Are coupled to the first rotating member 201 by a coupler 204.

  And in this embodiment, as FIG. 13 (A) shows, the extending | stretching direction of the 1st control wire 111 extended to the outer side of the machine frame 110 from the fan-shaped part 201B is the fan-shaped part 201B. It matches or substantially matches the tangential direction.

  The first rotating member 201 is horizontally formed with a cam portion 201C having a circumferential length around the central axis 201A at the lower side of the fan-shaped portion 201B. The outer peripheral surface of the cam portion 201C, which has a longer projecting length in the radial direction from the central axis 201A than 201B, is an arcuate surface centered on the central axis 201A. A coil portion of a torsion coil spring 205 is wound around the outer periphery of the central shaft 201A, and one end of the spring 205 is locked to a locking member 206 attached to the machine frame 110, and the other end is locked. The end portion is locked to a convex portion 201 </ b> E provided on the first rotating member 201. For this reason, the first rotating member 201 is always urged to rotate in the B direction in FIG. 13A about the central axis 201A by the spring 205, and the first rotating member 201 in this B direction is urged. The rotation limit is defined by a stop member 207 attached to the machine casing 110 and abutting one side surface of the cam portion 201C.

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

  As shown in FIG. 12, holes 110G and 110H are formed in the two rising portions 110B and 110C of the machine casing 110 of the composite apparatus 100, and two rising portions are formed in these holes 110G and 110H. A plate-like second slide member 210 shown in FIG. 13A having a length extending over 110B and 110C is slidably inserted. The second slide member 210 is a reciprocating member that can linearly reciprocate in the same direction as the first slide member 120. In addition, an opening hole 210A is formed in the second slide member 210, and a protrusion 211 is inserted into the opening hole 210A and provided on the lower surface of the protruding portion 202C of the second rotating member 202. The convex portion 211 in the present embodiment is a rotatable roller such as a roller bearing.

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

  As shown in FIG. 11, the second slide member 210 which is a constituent member of the intermediate device 200 is at a height position above the first slide member 120 which is a constituent member of the automatic closing device 32. Is arranged in the machine casing 110. Further, as shown in FIG. 13A, the second slide member 210 has a first and a first portion with respect to the rising portion 138B of the rack member 138 coupled to the first slide member 120. On the forward side of the two slide members 120, 210, a step surface 210 </ b> B formed to face the slide members 120, 210 in the forward / backward direction is provided. As shown in FIG. 11, the rising portion 138B has a length extending upward, and the rising portion 138B and the step surface 210B are in the normal state shown in FIGS. The first and second slide members 120 and 210 face each other with a large gap in the moving direction. Then, as shown in FIGS. 14A and 14B and FIGS. 15A and 15B, the rising portion 138B abuts on the step surface 210B or opens a slight gap as the first slide member 120 moves forward. When the second slide member 210 moves backward as shown in FIG. 16 (A), the first slide member as shown in FIG. 16 (B) due to the pressing action of the rising portion 138B by the step surface 210B. 120 also moves backwards.

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

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

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

  Further, as shown in FIG. 13A, a third electric switch 220 is attached to the machine casing 110, and the third electric switch 220 is connected to the first and second electric switches 135 and 117 described above. Similarly, it has a swingable actuator 221 that is biased in a direction protruding from the third electric switch 220 by a spring. The first rotating member 201 is provided with a protruding member 222, and the actuator 221 is in contact with the protruding member 222.

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

  In the building where the shutter device according to the present embodiment is installed, when a disaster such as a fire occurs when the shutter curtain 1 is stopped at the fully open position or in the middle of the opening and closing movement direction, the sensor from the sensor that has detected this disaster An automatic circuit shown in FIG. 13B is controlled by control of an electric circuit such as a relay circuit (not shown) to which a signal is input or a control device by a computer (this control device may also serve as the control device 26 in FIG. 1). Since the solenoid 126 of the device 32 is energized and the solenoid 126 is energized, the plunger 127 of the solenoid 126 moves backward against the spring force of the spring 128. As a result, the bending lever member 129 having one end abutting against the tip member 140 is opposite to the K direction in FIG. 13B around the central axis 129A against the spring force of the spring 131. It will rotate in the L direction. The state at this time is shown in FIG. When the bending lever member 129 rotates in the L direction about the central axis 129A, the roller 130 of the bending lever member 129 escapes from the concave portion 120B of the first slide member 120, so that the first slide member 120 has the spring force of the spring 121. The forward movement is stopped when the front end of the rack member 138 provided on the first slide member 120 abuts on the above-described rising portion 110 </ b> B of the machine frame 110. That is, the rack member 138 of the present embodiment is also a forward limit defining portion in the first slide member 120 for defining the forward limit of the first slide member 120.

  Further, the position of the front end of the first slide member 120 at this time is as shown in FIG. 14B among the three positions H, I, and J shown in FIG. 12 and FIG. 13B. And the I position which is the foremost position.

  Further, when the first slide member 120 advances as described above, the actuator 136 of the first electric switch 135 is disengaged from the protruding member 137 attached to the first slide member 120. In response to the generated signal, the control device described above stops energization of the solenoid 126.

  When the energization of the solenoid 126 is stopped, the plunger 127 protrudes from the solenoid 126 by the spring force of the spring 128, and the bending lever member 129 is centered on the central axis 129A by the spring force of the spring 131. Rotate in the direction. Since the first slide member 120 at this time has advanced to the movement limit where the front end of the first slide member 120 reaches the I position, the roller 130 of the bending lever member 129 is shown in FIG. As described above, it hits the aforementioned inclined surface 120 </ b> C of the first slide member 120. For this reason, the rotation of the bending lever member 129 about the central axis 129A in the K direction stops halfway.

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

  Further, when a person discovers that a disaster such as a fire has occurred, this person is arranged in the operating device 30 shown in FIG. 1 and is connected to the end of the second control wire 112 described above. The second control wire 112 is pulled by a manual operation member such as a lever member. Since the other end of the second control wire 112 is connected to the above-described tilting member 141 as described with reference to FIG. 13B, the second control wire 112 is pulled. The tilting member 141 is tilted and rotated around the central shaft 142A toward the solenoid 126, and the tip member 140 and the plunger 127 are retracted by the pressing action of the tilting member 141. As a result, even before the solenoid 126 is energized and excited, the bending lever member 129 is moved through the tip member 140 by the pressing force from the raising / lowering member 141 as when the solenoid 126 is energized and excited. The roller 130 of the bending lever member 129 escapes from the concave portion 120B of the first slide member 120 and rotates in the L direction in FIG. 13B around the central axis 129A. It will move forward with spring force.

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

  As described above, when the first slide member 120 moves to the forward limit, the rising portion 138B provided on the rack member 138 of the first slide member 120 is shown in FIGS. 14 (A) and 15 (A). As shown in FIG. 6, the second slide member 210 abuts on the step surface 210B or approaches the step surface 210B. Therefore, even if the first slide member 120 moves to the forward limit shown in FIGS. 14B and 15B, the second slide member 210 is shown in FIGS. 14A and 15A. As shown, it remains stopped at the position shown in FIG. Therefore, the second slide member 210 is configured as a constituent member, and the intermediate device 200 shown in FIGS. 14A and 15A maintains the same state as in FIG. 13A. To do.

  Further, when the first slide member 120 advances to the forward limit, the rack portion 138A of the rack member 138 provided on the first slide member 120 causes the pinion gear 115 shown in FIG. However, the rotation of the pinion gear 115 in the P direction is not transmitted to the drive shaft 113A of the electric motor 113 due to the cutting action of the one-way clutch 116 described above. For this reason, since the drive shaft 113A does not rotate, the electric motor 113 does not function as a generator. Therefore, the first slide member 120 is advanced at a high speed by the spring force of the spring 121, and the brake device 19 of the opening / closing machine 13 is operated. Is turned off instantaneously, the closing movement of the shutter curtain 1 downwards is almost the same as when the signal from the sensor that detected the disaster is input to the control device, or the occurrence of a disaster such as a fire. It can be started substantially simultaneously when the discovered person operates a manual operation member such as a lever member connected to the end of the second control wire 112.

  As described above, when the shutter curtain 1 reaches the fully closed position and a disaster such as a fire is resolved, the shutter curtain 1 is disposed in the electric operation device 30 in FIG. 1 and is used to drive the electric motor 113 described above. The switch or button is operated by a person who has confirmed that a fire or other disaster has been resolved. Thus, when the drive shaft 113A of the electric motor 113 is rotated in the Q direction in FIG. 13B by a signal from the control device 26 shown in FIG. 1, and the drive shaft 113A is rotated in this direction, this rotation is Since the transmission is transmitted to the pinion gear 115 by the connection action of the one-way clutch 116, the first slide member 120 having the rack portion 138A meshing with the pinion gear 115 moves backward against the spring force of the spring 121. As a result, the first slide member 120 moves back and returns from the position shown in FIG. 15B to the initial position where the front end of the first slide member 120 becomes the H position in FIGS. 12 and 13B. become.

  Thus, when the first slide member 120 is retracted and returned to the initial position, the rear end portion of the rack portion 138A of the first slide member 120 comes into contact with the actuator 118 of the second electric switch 117, and the actuator 118 operates. The rotation of the drive shaft 113A of the electric motor 113 in the Q direction is stopped by the control signal of the control device 26 to which the signal from the second electric switch 117 is input. At this time, since the bending lever member 129 rotates about the central axis 129A in the K direction in FIG. 13B by the spring force of the spring 131, the roller 130 of the bending lever member 129 is moved to the first slide member 120. Thus, the first slide member 120 on which the spring force of the spring 121 acts is stopped at the position where the front end of the first slide member 120 has reached the H position. Thus, the automatic closing device 32 returns to the initial state before the occurrence of a disaster such as a fire.

  As described above, when the first slide member 120 moves backward and 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 are moved by the spring 23 of FIG. Since it moves in the reverse direction, the brake device 19 returns from off to on. Thereafter, by operating the above-mentioned “open” button provided in the operating device 30, the shutter curtain 1 opens and moves to the fully open position as described above.

  For this reason, according to the present embodiment, when a disaster such as a fire is resolved, returning the brake device 19 from OFF to ON operates a switch or a button arranged in the electrical operation device 30, Accordingly, the first slide member 120 can be moved backward to drive the electric motor 113 serving as an electric means for turning on the brake device 19, in other words, to turn the brake device 19 back on. Since the return means is an electric motor 113 which is an electrical means, an operation of turning on the brake device 19 can be performed by an electrical operation using a switch or the like, and this operation can be easily performed.

  In addition, since the electric motor 113 is disposed inside the machine casing 110 where the first slide member 120 is disposed, an apparatus such as the electric motor 113 serving as a means for moving the first slide member 120 backward. The member can be protected by the machine casing 110.

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

  When the shutter device according to the present embodiment is a shutter device for disaster prevention and the shutter curtain 1 is closed and moved, in other words, the automatic closing device 32 is in the state shown in FIG. 15A is in the state shown in FIG. 15A, and the obstacle 34 shown in FIG. 1 exists under the shutter curtain 1 in the closing movement direction when the shutter curtain 1 is closing and moving. When the shutter curtain 1 is in the middle of the closing movement, the curtain sub-portion 71B disposed at the front end of the shutter curtain 1 on the closing side, in other words, the lower portion of the seat plate 1B of the shutter curtain 1 4 that forms FIG. 4 comes into contact with the obstacle 34, and the lowering of the movable portion 70B stops.

  Even if the lowering of the movable portion 70B stops, the curtain main portion 71A configured by the curtain main body 1A and the fixed portion 70A of FIG. 4 of the seat plate 1B is lowered from the state of FIG. As a result of the relative rise of the curtain sub-part 71B (movable part 70B) with respect to the curtain main part 71A generated by this lowering, as shown in FIG. It swings upward about the fulcrum shaft 80. Accordingly, the lock member 50 constituting the mechanical coupling device 55 described above is rotated in the N direction of FIG. 7 by the pressing member 54 provided on the swinging member 81 to be in the state of FIG. The engaging portion 53 of the lock member 50 engages with the tooth portion 35 </ b> A of the rotating member 35.

  Accordingly, the rotating member 35 and the take-up reel 37 that have been rotated in the S direction in FIG. 7 when the shutter curtain 1 is closed and moved cannot be rotated in this S direction. The reel 37 becomes non-rotatable, and the shutter curtain 1 and the lock wire 36 fed out from the take-up reel 37 are coupled by the mechanical coupling device 55 having the rotation member 35 and the lock member 50 as components. become. Therefore, a downward tension force due to the weight of the shutter curtain 1 excluding the movable portion 70B, that is, the weight of the curtain main portion 71A, acts on the lock wire 36.

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

  Further, even if the obstacle 34 is a hard object that does not dent or deform hardly, when the lock member 50 is rotated in the N direction of FIG. 7 by the pressing member 54 of the swing member 81, it is shown in FIG. As described above, of the first engaging portion 53A, the second engaging portion 53B, and the third engaging portion 53C provided as the engaging portion 53 on the lock member 50, the first engaging portion 53A is first rotated. The second engaging portion 53B and the third engaging portion 53C are engaged with the tooth portion 35A of the rotating member 35, and then the tooth portion 35A of the member 35 is engaged. Of these engagements, at least the engagement of the first engagement portion 53A with the tooth portion 35A is separated from the lock member 50 in the length direction of the lock member 50, as shown in FIG. Of the first lock member side contact portion 59A and the second lock member side contact portion 59B that are provided as the two lock member side contact portions 59, a shaft 56 serving as a rotation center axis of the lock member 50 The first lock member-side contact portion 59A located far from the center is pushed up by the pressing member 54 serving as the shutter curtain-side contact portion 58.

  The interval between the first engaging portion 53A, the second engaging portion 53B, and the third engaging portion 53C is the interval between the tooth portions 35A that are formed on the rotating member 35 at equal intervals (tooth pitch). The same dimension or substantially the same dimension, or a dimension that is an integral multiple of 2 or more or a dimension that is approximately an integral multiple of the spacing dimension between the tooth portions 35A. For this reason, when the first engaging portion 53A is engaged with the tooth portion 35A, the second engaging portion 53B and the third engaging portion 53C are also engaged with the tooth portion 35A.

  When the first lock member side contact portion 59A is pushed up by the pressing member 54 as described above, next, as shown in FIG. 8, the second lock member side contact portion 59B of the lock member 50 is used. Comes into contact with the pressing member 54, and the second lock member side contact portion 59B is pushed up. That is, the push-up member 54 pushes up the lock member side contact portion 59 of the lock member 50 from the first lock member side contact portion 59A to the second lock member side contact portion 59B. This push will be done.

  For this reason, the rotation of the lock member 50 in the N direction shown in FIG. 7 is continued in two stages, whereby the first engaging portion 53A of the lock member 50 is rotated. The second engagement portion 53B and the third engagement portion 53C continue to engage with the tooth portion 35A of the rotating member 35 even when the engagement with the tooth portion 35A of the 35 is disengaged, and these second engagement portions 53B and the third engaging portion 53C slightly rotate the rotating member 35 in the T direction in FIG. The rotation in the T direction is a rotation in a direction in which the take-up reel 37 winds the lock wire 36 and is a direction in which the lock wire 36 is pulled downward.

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

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

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

  Further, when the shutter curtain 1 comes into contact with the obstacle 34, the first lock member side contact portion 59A of the lock member 50 is pushed up by the pressing member 54 that is the shutter curtain side contact portion 58 as described above, Accordingly, the first engagement portion 53A of the lock member 50 that rotates in the N direction about the shaft 56 of FIG. 7 attempts to engage with the tooth portion 35A of the rotation member 35. Or the rotation timing of the rotation member 35 causes the tip of the first engagement portion 53A and the tip of the tooth portion 35A to come into contact with each other, so that the lock member 50 and the rotation member 35 are brought into contact with each other. In other words, the lock member 50 and the rotation member 35 may be in a deadlock state.

  However, in the present embodiment, as described with reference to FIG. 9, the lock member 50 and the shaft 56 serving as the rotation center axis of the lock member 50 are rotated by the long hole 67 formed in the case 33 described above. Since it is movable toward and away from the member 35 and is always biased in the X direction on the rotating member 35 side by the elastic biasing force of the torsion coil spring 57 that is an elastic member, When the deadlock state occurs, the lock member 50 and the shaft 56 move slightly in the direction of retreating from the rotation member 35 due to the reaction force from the rotation member 35, and the deadlock state is eliminated, and the torsion coil spring The first urging portion 53A of the lock member 50 is engaged with the tooth portion 35A of the rotating member 35 that continues to rotate. It made.

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

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

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

  When the first control wire 111 is pulled, the other end of the first control wire 111 is a constituent member of the intermediate device 200 in the state of FIG. 15A as described above. Since the first rotation member 201 is connected to the first rotation member 201, the first rotation member 201 rotates in the direction C in FIG. 13A, and this rotation causes the cam portion 201C of the first rotation member 201 to rotate. The second rotating member 202 in which the convex portion 208 is in contact with the side surface 201D rotates in the G direction in FIG. As a result, the second slide member 210 in which the convex portion 211 of the second rotating member 202 is inserted into the opening hole 210 </ b> A has a pressing force from the convex portion 211 as shown in FIG. Retreats against the spring force of the spring 212.

  Accordingly, the second slide member 210 presses the rising portion 138B of the rack member 138 of the first slide member 120 by the step surface 210B. For this reason, the first slide member 120 also moves backward, The aforementioned brake device 19 is switched from off to on. Therefore, the shutter curtain 1 that is in contact with the obstacle 34 in FIG. 1 during the closing movement stops the closing movement. The state of the automatic closing device 32 at this time is shown in FIG. 16B, and the position of the front end of the first slide member 120 at this time is the J position shown in FIGS.

  When the first slide member 120 moves backward as described above, the drive shaft 113 of the electric motor 113 rotates due to the connecting action of the one-way clutch 116, and the electric motor 113 becomes a generator. The retraction of the one slide member 120 is performed by the weight of the curtain main portion 71A which is substantially the same as the entire weight of the shutter curtain 1, and since this weight is extremely large, the first slide member 120 becomes a generator. The position J is sufficiently opposed to the resistance force from the electric motor 113.

  In the present embodiment, as described above, when the first control wire 111 is pulled, the stepped surface 210B of the second slide member 210 that retreats presses the rising portion 138B of the rack member 138 of the first slide member 120. As a result, the first slide member 120 moves backward, so that the step surface 210B is a pressing portion of the second slide member 210 for pressing the first slide member 120, and the rising portion 138B is the second slide. This is a pressed portion of the first slide member 120 for receiving a pressing force from the member 210.

  In the above operation, as described above, when the second rotating member 202 is rotated in the G direction in FIG. 13A, the pinion gear 300B of the delay device 300 rotates in the E direction. When the pinion gear 300B rotates, the one-way clutch disengaging function of the delay device 300 functions as described above. Therefore, the pinion gear 300B rotates at high speed in the E direction, and the second rotating member 202 also moves in the G direction. It can rotate at high speed. In other words, no delay action occurs in the delay device 300 at this time.

  Further, when the first control wire 111 is pulled as described above, the first rotating member 201 rotates in the C direction of FIG. 13A and the second rotating member 202 rotates in the G direction. Since the movements performed by the first rotation member 201 and the second rotation member 202 are rotation movements, even if the length of the first control wire 111 to be pulled is long, The entire rotation amount of the first rotation member 201 is not transmitted to the second rotation member 202.

  In other words, in the present embodiment, as described above, the locking member 50 is provided with the three engagement portions 553A, 53B, in consideration of the case where the obstacle 34 is a hard member that does not dent and is not deformed. Even if the length of the first control wire 111 that is pulled by the action of the engaging portions 53A, 53B, and 53C is increased, the first rotation member 201 has a first rotation amount out of the total rotation amount. Only when the side surface 201D of the cam portion 201C of the rotating member 201 is in contact with the convex portion 208 of the second rotating member 202, the rotation of the first rotating member 201 in the C direction is the second rotating member 202. In addition, this is transmitted as the rotation of the second rotating member 202 in the G direction. Even if the first rotating member 201 rotates in the C direction after the side surface 201D of the cam portion 201C of the first rotating member 201 does not contact the convex portion 208 of the second rotating member 202, In other words, the rotation is an idling rotation, and the second rotating member 202 is stopped when the first rotating member 201 performs the idling rotation.

  For this reason, even if the length by which the first control wire 111 is pulled is long and the rotation amount of the first rotation member 201 is large, the distance by which the first slide member 120 moves backward is not long, As a result, when the shutter curtain 1 that is being moved is in contact with the obstacle 34, the position at which the first slide member 120 moves backward is indicated by the front end of the first slide member 120 in FIG. As shown, among the three positions I, J, and H shown in FIGS. 12 and 13B, the position reaches the J position. This J position is a position in front of the H position which is the initial position, and is a position where the brake device 19 can be mechanically switched from OFF to ON by the first slide member 120, and FIG. The roller 130 of the bending lever member 129 indicated by () is in a position where the roller 130 is in a state of being escaped from the concave portion 120B of the first slide member 120, as in FIG. The fact that the roller 130 is kept in the state of being escaped from the concave portion 120B is shown in FIG. 16B, which shows the time when the shutter curtain 1 that is closing and moving is in contact with the obstacle 34. ing.

  As described above, after the brake device 19 is switched from OFF to ON, and the obstacle curtain 34 is removed after the closing shutter curtain 1 stops, the curtain sub-portion 71B of the shutter curtain 1 is moved. Since it moves down, the mechanical coupling device 55 releases the coupling between the shutter curtain 1 and the locking wire 36. As a result, the tension force acting on the locking wire 36 and the first control wire 111 disappears, so the first rotating member 201 rotates in the B direction of FIG. The second rotation member 202 rotates in the direction F in FIG. 13A when the second slide member 210 moves forward with the spring 212, and the second slide member 210 moves forward to automatically close the device. The 32 first slide members 120 advance by the spring force of the spring 121 so that the position of the front end shifts from the J position in FIG. 16B to the I position shown in FIGS. 12 and 13B. For this reason, the brake device 19 of the opening / closing machine 13 is mechanically switched again from on to off, and the shutter curtain 1 is closed and restarted.

  At this time, the one-way clutch 116 provided on the drive shaft 113A of the electric motor 113 is disconnected.

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

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

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

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

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

  In the present embodiment, the lock member 50 which is a constituent member of the mechanical coupling device 55 shown in FIGS. 7 and 8 includes the engaging portion of the lock member 50 as described in FIG. Since the clearance adjustment means 66 for adjusting the magnitude | size of the clearance gap 65 between the front-end | tip of 53 and the front-end | tip of the tooth | gear part 35A of the rotation member 35 is provided, the shutter curtain 1 is not contact | abutting to an obstruction. In normal times, the size of the gap 65 can be set to an appropriate value. For this reason, a problem that occurs when the size of the gap 65 is larger than the appropriate value, that is, when the shutter curtain 1 that is moving in close contact with the obstacle 34, the lock member 50 is immediately engaged. Since the portion 53 does not engage with the tooth portion 35A of the rotating member 35, it is possible to solve the problem that it becomes difficult to stop the shutter curtain 1 instantaneously because the obstacle sensing is delayed. A problem that occurs when the size of the gap 65 is smaller than an appropriate value, that is, even when the shutter curtain 1 is not in contact with the obstacle 34, for example, when the rotating member 35 or the lock member 50 vibrates. The problem that the engaging portion 53 comes into contact with or engages with the tooth portion 35A can be solved.

  The above description has been made when the shutter device according to the present embodiment is the above-described shutter device for disaster prevention. When this shutter device is the aforementioned management shutter device, that is, when the shutter curtain 1 is closed and moved by the operation of the aforementioned operation device 30, the shutter curtain 1 contacts the obstacle 34. Sometimes, the tension force and the pulling force act on the first control wire 111, so the first rotating member 201 of the intermediate device 200 rotates in the direction C in FIG. The second slide member 210 is retracted via the second rotating member 202, but the first slide member 120 at this time is retracted to the retreat limit where the front end is at the H position. 13A, there is a large gap between the step surface 210B of the second slide member 210 and the rising portion 138B of the rack member 138 of the first slide member 120. , Even if the second slide member 210 is retracted, the retraction does not affect the first slide member 120.

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

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

  If the shutter curtain 1 is in contact with the obstacle 34 when the shutter device is the disaster prevention shutter device described above, the actuator 221 of the third electric switch 220 is disengaged from the protruding member 222 of the first rotating member 201. At this time, the signal from the third electric switch 220 is invalidated by the control device to which the signal from the sensor that detects a disaster such as a fire is input.

  FIG. 17 shows an embodiment in which a solenoid 250 is used as the electric means for retracting the first slide member 120 to switch the brake device 19 from OFF to ON. The solenoid 250 is disposed outside the machine casing 110 on which the first slide member 120 is arranged, specifically, by a bracket 257 below the bottom 110F of the machine casing 110. The solenoid 250 has a plunger 251 protruding from the main body 250A in the retreat direction of the first slide member 120. The plunger 251 is movable forward and backward with respect to the main body 250A. The slide member 120 protrudes in the backward direction.

  The rear end portion of the first slide member 120 protrudes greatly from the rising portion 110 </ b> C of the machine frame 110, and the rear end portion and the plunger 251 of the solenoid 250 are connected by a lever member 252. The lever member 252 is supported by a shaft 253 provided at a bracket 254 coupled to the machine casing 110 at a portion between both end portions in the length direction of the lever member 252. The lever member 252 is swingable around the center. In the first slide member 120 and the lever member 252, a shaft 255 provided at the rear end portion of the first slide member 120 is a long hole 252 </ b> A formed in the end portion on the first slide member 120 side of the lever member 252. It is connected by being inserted into.

  Further, the relationship between the plunger 251 and the lever member 252 of the solenoid 250 is such that the pressing member provided at the rear end portion of the plunger 251 that protrudes in the retracting direction of the first slide member 120 from the lever member 252 in a normal state. 256 has a relationship in which the end of the lever 252 on the side of the plunger 251 is opposed to the moving direction of the first slide member 120 with a large space therebetween, whereby the plunger 251 resists the spring 250B. When the first slide member 120 moves in the forward direction (the backward direction with respect to the main body 250A of the solenoid 250), the pressing member 256 approaches or contacts the lever member 120.

  The solenoid 250 is driven by the control signal of the control device 26 to which the electrical signal from the electrical operation device 30 shown in FIG. 1 is input, similarly to the electric motor 113 of the above-described embodiment. Are provided with a switch or button for driving the solenoid 250.

  Further, the pressing member 256 of this embodiment is a rotating member such as a roller bearing that is rotatably attached to the plunger 251.

  FIG. 17 shows the time when the automatic closing device 32 is in the state shown in FIG. 13B. For this reason, the first slide member 120 at this time is in the retracted position, which is the initial position. The front end of one slide member 120 has reached the H position shown in FIGS. 12 and 13B. For this reason, the brake device 19 is turned on.

  FIG. 18 shows a case where a disaster such as a fire has occurred, whereby the first slide member 120 has moved forward, and the front end of the first slide member 120 has reached the I position in FIGS. 12 and 13B. At this time, the brake device 19 is off. As described above, when the first slide member 120 moves forward and the brake device 19 is turned off, the end on the plunger 251 side of the lever member 252 that swings around the shaft 253 is pressed by the plunger 251. In other words, since the movement of the lever member 251 when the first slide member 120 moves forward is not transmitted to the plunger 251, the movement of the lever member 252 does not affect the plunger 251 at all because it only approaches the member 256. . For this reason, the forward movement of the first slide member 120 is performed at a high speed, and the brake device 19 is instantaneously turned off.

  In FIG. 19, the shutter curtain 1 in the closing movement comes into contact with the obstacle 34, whereby the first slide member 120 moves backward, and the front end of the first slide member 120 is at the J position in FIGS. 12 and 13B. The brake device 19 at this time is switched from off to on. At this time, of the lever member 252 that swings around the shaft 253, the end on the plunger 251 side moves away from the pressing member 256 of the plunger 251, so that the first slide member also at this time 120 reverses at high speed, and the brake device 19 is instantly turned on.

  FIG. 20 shows a state in which the brake device 19 is turned back on after the brake device 19 is turned off due to the occurrence of a disaster such as a fire and the shutter curtain 1 reaches the fully closed position and the disaster such as a fire is resolved. ing. When the brake device 19 is turned back on in this way, the solenoid 250 is energized and excited by the control signal of the control device 26 by operating the switch or button of the electrical operation device 30 in FIG. The plunger 251 of 250 retreats against the body 250A of the solenoid 250 against the spring 250B.

  As a result, the pressing member 256 of the plunger 251 presses the end on the plunger 251 side of the lever member 252, so that the lever member 252 swings around the shaft 253, and this movement causes the first member The slide member 120 is retracted to the initial retreat limit position, and the brake device 19 is turned on. That is, when the plunger 251 performs a motion for moving the first slide member 120 backward, this motion is transmitted to the first slide member 120 via the lever member 252.

  For this reason, also in this embodiment, the first slide member 120 can be retracted to return the brake device 19 to the on state by the solenoid 250 driven by an electric operation. Can be performed easily by an electrical operation using a switch or the like.

  Further, when the brake device 19 is turned back on, the pressing member 256 of the plunger 251 presses the end of the lever member 252 on the plunger 251 side, and this pressing member 256 is rotatably attached to the plunger 251. This pressing is performed by rotating the pressing member 256. Therefore, the pressing can be performed without generating a frictional force, and the plunger 251 moves and the lever member 252 moves. Can be performed smoothly.

  Furthermore, the solenoid 250 that is an electrical means for returning the brake device 19 in this embodiment to the on state is disposed outside the machine casing 110 where the first slide member 120 is disposed. The maintenance work for the lever member 252 and the like can be performed without being affected by the machine casing 110.

  When the first slide member 120 is retracted to the retreat limit position in order to return the brake device 19 to ON, the actuator 136 of the first electric switch 135 shown in FIG. 13B is actuated by the projection member 137 of the first slide member 120. Therefore, the energization and excitation of the solenoid 250 are stopped by the signal of the control device to which the signal from the first electric switch 135 is input, whereby the plunger 251 is shown in FIG. 17 by the spring force of the spring 250B. It will return to the initial protruding state.

  In the embodiment described above, driving the electric motor 113 and the solenoid 250, which are electrical means for turning the brake device 19 back on, is performed by operating the electrical operation device 30. However, a sensor for detecting that the shutter curtain 1 has reached the fully closed position is provided at the lower end portion of the guide rail 6 that guides the opening and closing movement of the shutter curtain 1, and the detection from this sensor transmitted to the control device. The brake device 19 may be turned on by driving the electrical means based on the signal, and then the shutter curtain 1 may be opened and moved to the fully open position by operating the electrical operation device 30. Further, a sensor for detecting that the shutter curtain 1 has reached the fully open position is provided at the upper end portion of the guide rail 6, and the electric means is driven on the basis of a detection signal transmitted from the sensor to the control device for braking. By turning on the device 19, the shutter curtain 1 that has reached the fully open position from the fully closed position by the operation of the electrical operating device 30 may be stopped at the fully open position, or the length direction of the guide rail 6 By providing a sensor for detecting the lower end of the shutter curtain in the middle of driving the electrical device based on the detection signal from the sensor transmitted to the control device to turn on the brake device 19, The shutter curtain 1 that is in the process of being opened and moved from the fully closed position to the fully open position is stopped by operating the electrical operation device 30, To, by operating the electric operating device 30 again may be moved to open the shutter curtain 1 to the fully open position.

  In short, driving the electric motor 113 and the solenoid 250, which are electrical means for turning the brake device 19 back on, means that the shutter curtain 1 reaches the fully closed position or the shutter curtain 1 It may be performed when returning to the fully open position or when the shutter curtain 1 that has reached the fully closed position is moving toward the fully open position.

  Further, in order to turn on the brake device 19 when the shutter curtain 1 in the closed movement comes into contact with the obstacle 34, the tension force acting on the locking wire 36 and the first control wire 111 described above is detected. The sensor is provided to drive the electrical means based on the detection signal transmitted from the sensor to the control device. With this, along with the tension of the lock wire 36 and the first control wire 111, Or you may make it stop the shutter curtain 1 contact | abutted to the obstruction only by the drive of the said electrical means. That is, the electrical means may be used to stop the shutter curtain 1 that is in contact with an obstacle.

  Further, the power source for driving the electrical means may be a commercial power source, a battery for a 24V (volt) disaster prevention signal or the like for detecting a fire or the like, or a dedicated battery for the electrical means or the like. Good.

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

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is an opening / closing body 13 Opening / closing machine 19 Brake device 32 Automatic closing device 34 Obstacle 36 Locking wire which is a string-like member 55 Mechanical coupling device 100 Composite apparatus 110 Machine frame 111 First control which is a string-like member Wire 113 Electric motor 113A which is an electric means 113A Drive shaft 115 Pinion gear 116 One-way clutch 120 First slide member 138A which is a slide member Rack part 250 Solenoid which is an electric means 250A Solenoid body 251 Plunger 252 Lever member 256 Press member

Claims (5)

A brake device for stopping and moving the openable / closable open / close body by turning it on and off, and moving in one direction and the other direction opposite to this direction to switch the brake device on and off When the opening and closing body that is being freely moved and the opening and closing body that is being closed are in contact with an obstacle, the opening and closing body and the string-like member are mechanically coupled to each other so that the slide-like member A mechanical coupling device for moving a member in the one direction and applying a tension force for turning on the brake device by its own weight; and the other device for turning off the brake device. In an opening / closing body stop device for an opening / closing device, including a return means for returning the brake device to on by moving the slide member that has moved in the direction in the one direction,
The return means is an electric means for moving the slide member in the one direction by an electric force ,
The electrical means is a solenoid;
The solenoid plunger and the slide member are connected via a lever member,
The connecting structure of the plunger and the lever member is such that the movement of the lever member when the slide member moves in the other direction is not transmitted to the plunger, and the plunger moves the slide member in the one direction. An opening / closing body stop device for an opening / closing device, characterized in that when performing an exercise for movement, the movement is transmitted to the slide member via the lever member . 2. The opening / closing body stop device for an opening / closing device according to claim 1 , wherein the plunger includes a pressing member that presses the lever member when the plunger moves backward with respect to the main body of the solenoid. The opening / closing body stopping device of the opening / closing device, wherein the slide member moves in the one direction through the lever member by pressing the lever. 3. The opening / closing body stop device for an opening / closing apparatus according to claim 2 , wherein the pressing member is a rotating member rotatably attached to the plunger. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 3 , wherein the slide member is movably disposed in a machine frame, and the solenoid is disposed in the machine frame. An opening / closing body stop device for the opening / closing device. The opening / closing body stop device for an opening / closing device according to any one of claims 1 to 3 , wherein the slide member is movably disposed on a machine frame, and the solenoid is disposed outside the machine frame. An opening / closing body stop device for the opening / closing device.

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