JP2013127202A - Self-weight descent type shutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To configure a manual operation tool for descent of a self-weight descent type shutter device by self-weight so that it can be compactly provided without being a hindrance and with proper designability.SOLUTION: A manual operation tool 12 is housed in a case body 17, and the case body 17 is internally mounted in a guide rail 4 via a notch 4f which is opened in the guide rail 4. An automatic closing switch 13, a base plate 19a and a switch cover 21, which are provided in the manual operation tool 12, are arranged in such a manner that the base plate 19a is positioned on the backside of the case body 17, that the automatic closing switch 13 is positioned on the front side of the base plate 19a and that the switch cover 21 is positioned on the front side of the automatic closing switch 13.

Description

  The present invention belongs to the technical field of a self-weight descent shutter device that is provided at an entrance / exit of a building, a passage, and the like and closes with its own weight when an abnormality such as a fire occurs.

  In general, in this kind of self-weight drop shutter device, even if a power outage occurs due to the occurrence of a fire or the like, it is detected by a smoke detector or a fire detector, or an automatic operation tool provided near the opening is automatically used. There is a switch that allows the shutter curtain to be lowered by its own weight by releasing the brake of the switchgear by performing a switching operation of the closing switch.

  As an example of such a device, a manual operation tool is formed by using a switch box, and the switch box is installed in a place where a person in the vicinity of the self-weight drop type shutter device can easily operate.

JP 2007-77719 A

By the way, the conventional switch box is provided with a panel body made of resin glass or the like on the surface to be found, and a push-type switch portion (automatic closing switch, return switch) is provided in the switch box. And, when operating the automatic closing switch, the panel body provided on the surface of the switch box is destroyed and operated. In this case, the switch box has a somewhat large shape in order to easily destroy the panel body. In this way, depending on the installation location, the design may be impaired, but the load hits the switch box when passing and the automatic closing switch is pressed, causing the shutter curtain to drop by its own weight. There are problems such as the occurrence of such malfunctions and the possibility of mischief. Furthermore, when the switch box is installed near the opening, the wiring between the switch box and the self-weight drop type shutter device is inserted through a metal pipe material, etc. to prevent fires from burning. There is also a problem that the construction becomes complicated and takes time because special wiring work including piping is required. In addition, the installation of the shutter device is often done at the stage before the housing work is completed. Therefore, when the manual operation tool is installed near the opening, the switch box is installed at the time of installation of the shutter device. It is difficult to determine the position, and even if a manual operation tool is installed at an appropriate location near the opening, there may be a situation where the installation position must be changed when the frame construction is completed. In such a case, there is a problem that a large-scale work accompanied by the frame construction is required.
Further, since the panel body is destroyed after the automatic operation switch is pushed, there is a problem that the panel body must be remounted on the switch box to return to the original state. There are issues to be addressed.

The present invention has been created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 is a brake device provided in an opening / closing machine based on an operation of a manual operation tool. In the self-weight drop type shutter device configured so that the shutter curtain is lowered by its own weight when the brake is released, the manual operation tool is housed in a case body, and the case body moves and guides both left and right sides of the shutter curtain. What is built in the guide rail through the notch hole established in the guide rail to be attached can be attached by fixing the mounting plate fixed on the front side of the case body to the hole edge of the notch hole In addition, the manual operating tool includes an automatic closing switch for outputting an automatic closing signal for setting the brake device in a brake releasing state, and the automatic closing switch. And a switch cover that is pushed to switch the automatic closing switch, and the board is disposed on the inner surface side of the case body in parallel with the mounting plate. The self-weight drop type shutter device has an automatic closing switch arranged on the front side of the substrate and a switch cover arranged on the front side of the automatic closing switch.
According to the second aspect of the present invention, when the wiring drawn out from the manual operation tool is guided to the upper side of the guide rail via the inside of the guide rail, the wiring is directed downward from the lower portion of the case body to the outside of the case body. 2. The self-weight descent shutter device according to claim 1, wherein the pulled-out object is inverted upward, and the inverted object is guided to the upper side of the case body along the outer surface of the case body. is there.

  According to the invention of claim 1, the manual operation tool can be attached without carrying out the frame construction, the number of parts can be reduced, the configuration can be simplified, and the cost can be reduced. The design of the wall surface is not impaired, the manual operation tool does not get in the way, there is no problem that the luggage collides, and the manual operation tool does not increase in size.

It is a schematic perspective view of a shutter device. 2A and 2B are a bottom view and a front view of the automatic closing device, respectively. FIGS. 3A and 3B are a side view and a plan cross-sectional view, respectively, illustrating a state in which the manual operation tool is incorporated in the guide rail. 4A, 4B, 4C, 4D, and 4E are a side view, a front view, a rear view, a plan view, and a bottom view of the manual operation tool, respectively. 5 (A), (B), (C), (D), (E), (F), and (G) are respectively a front view of a case body, a front view of a switch cover, a front view of a switch window, and a fixing. It is the front view of a plate, the front view of a slide body, the front view of a 1st, 2nd bullet plane, and the front view of a 3rd bullet plane. 6A and 6B are a front view and a cross-sectional view taken along line XX in FIG. 6A, respectively. It is YY sectional drawing in FIG. 6 (A). 8A, 8B, and 8C are cross-sectional views illustrating the non-operating posture state of the switch cover, the working posture state of the switch cover, and the open posture state of the switch window, respectively.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a self-weight drop type shutter device installed in an opening such as a passage or an entrance, and a shutter curtain 2 constituting the shutter device 1 is a winding drum (not shown) arranged above the opening. The shutter curtain 2 is wound and unwound by rotating the winding drum forward and backward based on the forward / reverse driving of the opening / closing device 3 disposed above the opening. Between the fully open posture that opens and closes the opening and the fully closed posture that closes the opening while moving the opening up and down with the guide rails 4 standing on the left and right sides of the opening. Are configured to open and close, and all of these configurations are conventional.

In the present embodiment, the opening / closing device 3 is configured electrically, and includes an electric motor 5 with a speed reducer 5a, a speed governor for controlling the speed when the shutter curtain 2 lowers its own weight (closes its own weight), and a shutter curtain. 2 is provided with a brake device for braking the closing operation.
Further, the opening / closing machine 3 is provided with a shutter control panel 3a having necessary wiring, and a control unit 6 for controlling opening / closing of the shutter curtain 2 is connected to the shutter control panel 3a. The control unit 6 is provided with a signal from the opening / closing / stop switches PBU, PBD, PBS of the opening / closing operation tool 7 attached to the wall surface of the opening, a fully closed posture of the shutter curtain 2 provided in the switch 3 Further, signals from necessary switches and sensors such as a signal from the limit switch 8 for detecting the fully opened posture and a signal from the obstacle detection switch 9 provided at the lower end of the shutter curtain 2 are input. The control unit 6 is set to output a corresponding drive command to the shutter control panel 3a based on these input signals.

Then, in the state where the normal opening / closing operation mode is set, the control unit 6 performs the opening or closing of the closing switches PBU and PBD and inputs a corresponding signal, so that the shutter control panel A brake release command for the brake device is output to 3a (opening / closing machine 3), and an opening or closing drive command for the electric motor 5 is output to open / close the shutter curtain 2. On the other hand, when the stop switch PBS is operated and a stop signal is input, the control unit 6 outputs a drive stop command for the electric motor 5 to the shutter control panel 3a (opening / closing machine 3) and a brake device. The normal opening / closing operation control, such as stopping the shutter curtain 2 by outputting the braking command, is performed. Since these control configurations are the same as the conventional ones, their details are omitted.
The brake release means of the brake device based on the brake release command of the control unit 6 is, for example, a displacement operation that resists an energizing ammunition by exciting an exciting iron core (not shown) of an electromagnetic solenoid (not shown). It is comprised so that it may be made electrically.

  Here, the obstacle detection switch 9 is constituted by a so-called seat plate switch arranged on a seat plate 2a provided at the lowermost end of the shutter curtain 2, and the seat plate 2a is moved up in contact with the obstacle. Based on the above, switching is performed and an obstacle detection signal is output. The lead wire 9a drawn out from the obstacle detection switch 9 is wound around a cord reel 9b attached above the opening in a state of being urged in the winding direction. Thus, the lead wire 9a is wound and unwound.

Further, a smoke detector 10 is provided above the opening, and the smoke detector 10 is configured to output an abnormality detection signal when detecting smoke at the time of a fire, and the output abnormality The detection signal is provided on the wall surface of the opening, and is configured to be input to the control unit 6 via the disaster prevention panel 11 on which a battery is mounted.
Furthermore, one of the pair of left and right guide rails 4 (in this embodiment, the left guide rail in FIG. 1) is provided with a manual operation tool 12 in which the present invention is implemented. As will be described later, the manual operation tool 12 is provided with an automatic closing switch 13 and a return switch 14, and these switches 13 and 14 are connected to the control unit 6, and these switch operations are performed. Then, an automatic closing signal and a return signal are input to the control unit 6.

  On the other hand, the switch 3 is provided with a brake release lever 15 for mechanically switching the brake device from a brake release state to a return state (brake state). The urging force is held in a braking posture, and the braking device is set to be in a braking state in the braking posture. Then, the brake device is forced to change from the braking posture to the braking releasing posture against the urging force of the ammunition, so that the brake device is brought into the braking releasing state. In this state, the shutter curtain 2 is under its own weight. It is configured to descend.

The brake release lever 15 is connected to an automatic closing device 16 provided integrally with the opening / closing device 3, and is configured to change into a braking posture and a braking release posture as the automatic closing device 16 is driven. ing.
As shown in FIG. 2, the automatic closing device 16 includes a box-shaped casing 16a, and an electric motor 16b and a brake connected to the driving force of the electric motor 16b in the casing 16a. Device 16c, a pinion 16e provided integrally with an output shaft 16d output from the brake device 16c, a rack 16f that meshes with the pinion 16e and linearly reciprocates, and a brake that is displaced integrally with the rack 16f. Members such as an arm body 16g that interferes with the lever 15, a micro switch 16h that is switched according to the displacement of the arm body 16g, and an elastic machine 16i that returns the arm body 16g to the original position are provided. When power is supplied to the automatic closing device 16, the electric motor 16b is driven and the brake device 16c is released from the braking state to rotate the pinion 16e, and the arm body 16g provided on the rack 16f is attached to the armature 16i. The brake release lever 15 that is displaced against the urging force is displaced so that the brake release lever 15 protruding into the casing 16a is changed to the brake release posture against the ammunition. In this state, the weight of the shutter curtain 2 is reduced. It is configured to make a descent.
In this case, the automatic closing device 16 of the present embodiment is configured such that the arm body 16g switches the micro switch 16h to stop the power supply to the electric motor 16b and the brake device 16c. The automatic closing device 16 keeps the brake release lever 15 in the brake release posture (the weight of the shutter curtain 2 is lowered), the power supply to the electric motor 16b and the brake device 16c is stopped, and the consumption of the battery power is suppressed. It can be configured.

The automatic closing device 16 configured as described above is connected to the control unit 6. When the abnormality detection signal is input from the disaster prevention panel 11, or the automatic closing signal is input from the manual operation tool 12. In this case, the normal opening / closing operation mode is switched to the automatic closing mode corresponding to the abnormal state, and the automatic closing device 16 is operated as described above to lower the shutter curtain 2 by its own weight. At this time, the control unit 6 is configured to include a battery power source in addition to the main power source, and the automatic closing device 16 is configured to operate upon receiving power supply from the battery power source. Even so, the shutter curtain 2 is configured so that its own weight is lowered.
Further, the control unit 6 is configured to supply power to the brake device 16c when an obstacle detection signal is input from the obstacle detection switch 9 in the automatic closing mode. In this state, in the automatic closing device 16, the brake device 16c is released and the pinion 16e is released, and the brake release lever 15 receives the biasing force of the ammunition and brakes the brake release lever 15. The arm body 16g held in the release posture receives the urging force of the ammunition 16i and returns to the original position to return to the braking posture, and the weight drop of the shutter curtain 2 is urgently stopped. Further, in this state, when no obstacle detection signal is input and an abnormality detection signal or an automatic closing signal is input, power is supplied to the electric motor 16b and the brake device 16c again, so that the arm body 16g While the brake release lever 15 is held in the brake release posture, the power supply to the electric motor 16b and the brake device 16c is stopped, and the shutter curtain 2 is lowered by its own weight. The closing device 16 can reduce the consumption of the battery power supply in the process of lowering its own weight, and when it comes into contact with the obstacle in the process of lowering its own weight, an emergency stop is made and the obstacle is removed. Thus, the shutter curtain 2 can be lowered by its own weight until it is in a fully closed posture.
When a return signal is input to the control unit 6 in a state where the abnormality is avoided, the control unit 6 switches from the automatic closing mode to the normal opening / closing operation mode, and based on the operation of the opening / closing operation tool 7. The shutter curtain 2 is configured to perform opening / closing control.

The manual operation tool 12 includes a case body 17 that houses the automatic closing switch 13 and the return switch 14, and a mounting plate 18 that is fixed to one side of the case body 17. Here, in describing the manual operation tool 12 in detail, the manual operation tool 12 shown in FIG. 6A will be described as a front view.
The case body 17 is formed in a rectangular tube shape with a narrow finding width by a pair of left and right side pieces 17a and a pair of upper and lower side pieces 17b and a deep direction (corresponding to the operation direction of the switches 13 and 14). Yes. A mounting plate 18 is abutted against an opening end on the front side of the case body 17 (corresponding to one side of the present invention), and the mounting plate 18 extends from the case body upper and lower side pieces 17b in the vertical direction. The protruding mounting piece 17c is fixed by a screw 18a.
Further, the back cover body 19 is fixed to the opening end on the back side of the case body 17, and the front side surface 19 b of the back cover body 19 (corresponding to the back inner surface of the case body of the present invention). The board 19a is fixed, and the automatic closing switch 13 and the return switch 14 are provided on the board 19a together with necessary wirings so as to be adjacent to each other in the vertical direction so that the switches 13 and 14 are disposed in the case body 17. It is configured. The board 19a is provided with an abnormality display lamp 20 located between the switches 13 and 14, and is lit when the automatic closing switch 13 is switched. Yes.

The case body 17 is integrally formed with a partition piece 17d at the intermediate portion in the depth direction. The partition piece 17d faces the switches 13 and 14 and the abnormality display lamp 20 fixed to the substrate 19a. First, second, and third through holes 17e, 17f, and 17g are formed, respectively. Further, the mounting plate 18 is provided with first, second, and third through holes 18b, 18c, and 18d facing the switches 13, 14 and the abnormality display lamp 20, and the partitioning piece 17d, mounting The switches 13 and 14 and the abnormality display lamp 20 are exposed from the outside through the first, second and third through holes 17e, 17f, 17g, 18b, 18c and 18d formed in the plate 18. Has been.
Here, the first and second through holes 18 b and 18 c of the mounting plate 18 are set so as to be narrower than the found width of the case body 17.

  A switch cover 21 is provided in the mounting plate first through hole 18 b in front of the automatic closing switch 13 so as to be fitted into the case body 17. The switch cover 21 includes a main body portion 21a formed with a width to be fitted into the case body 17, a pair of left and right leg pieces 21b extending from the main body portion 21a to the back side, and a pair of upper and lower leg pieces 21c. It is prepared for. The left and right leg pieces 21b are supported so as to be movable in the depth direction in the first through hole 17e while sliding on the case body left and right side pieces 17a, respectively. The bottom through hole 17h formed above and below the first through hole 17e is inserted and supported so as to be movable in the depth direction. Further, the switch cover 21 is urged toward the mounting plate 18 side by a coil bullet machine (return bullet machine of the present invention) 21d interposed in the support hole 17h, and on the front side surface of the switch cover main body 21a. Is formed with a bulging portion 21e that fits into the mounting plate first through hole 18b. As a result, the switch cover 21 receives the urging force of the coil vault 21d, and the four peripheral edges of the main body 21a are elastically pressed against the mounting plate 18, and the front side surfaces of the bulging portion 21e and the mounting plate 18 are flush with each other. It is set to be held in the non-acting posture (restraint holding). When the switch cover 21 is in the non-acting posture, the main body 21a and the automatic closing switch 13 have a predetermined gap in the depth direction, and the automatic closing switch 13 is not switched. . On the other hand, when the switch cover 21 is pressed in the depth direction against the urging force of the coil bullet machine 21d and the main body portion 21a is transformed into an action posture to be immersed in the case body 17, the automatic closing switch 13 is changed. The switch is switched. In this state, an automatic closing signal is input to the control unit 6 from the automatic closing switch 13, and as described above, the automatic closing device 16 is activated and the shutter curtain 2 is lowered by its own weight.

Further, a switch window 22 is provided in front of the return switch 14 so as to be accommodated in the case body 17, and the second through hole 18c of the mounting plate 18 is opened and closed by moving the switch window 22 up and down. Is configured to do.
The switch window 22 includes a main body portion 22a formed to have a width of fitting into the case body 17 and a pair of left and right leg pieces 22b extending from the main body portion 22a to the back side. The front side surface of the main body portion 22a is the back side surface of the mounting plate 18, and is in sliding contact with the hole edge of the mounting plate second through hole 18c, while the extended front ends of the left and right leg pieces 22b slide on the case body partitioning piece 17d. The switch window 22 is configured to move up and down while being guided by the partition piece 17d and the mounting plate 18 to open and close the mounting plate second through hole 18c. Has been. Incidentally, the front side surface of the main body portion 22a of the switch window 22 is formed with a clasp piece 22c that bulges to the front side. The switch window 22 can be easily opened and closed by operating the clasp piece 22c. ing. As described above, the switch window 22 is configured to slide into the closed posture in which the mounting plate second through-hole 18c is closed and the closed posture in which the mounting plate second through-hole 18c is opened. In the state, the operation tool 14a of the return switch 14 provided in the case body second through-hole 17f is exposed to the outside, and the return switch 14 can be switched by pressing the operation tool 14a. Yes. In this state, a return signal is input to the control unit 6 from the return switch 14, and the control unit 6 is configured to be switched to the opening / closing operation mode as described above.

Between the switch cover 21 and the switch window 22, there is provided a switch cover operating means 23 in which the present invention is implemented.
The switch cover actuating means 23 is arranged to be fixed to the case body partitioning piece 17d located between the switch cover 21 and the switch window 22, and to be movable up and down along the fixing plate 24. The slide body 25 is provided. The fixing plate 24 is composed of a U-shaped plate body. By fixing a thick lower piece 24a, which is a middle portion in the left-right direction, to the case body partitioning piece 17d, the fixing plate 24 is moved upward from the front portion of the lower piece 24a. A gap is formed between the pair of left and right guide pieces 24b and the partition piece 17d.
On the other hand, the slide body 25 includes a pair of left and right stopper pieces 25a that are movably inserted into a gap formed between the left and right guide pieces 24b of the fixed plate 24 and the partition piece 17d, and the stopper pieces 25a are connected to the respective stoppers. An integrated piece 25b connected at the lower end of the piece 25a is provided. The stopper piece 25a of the slide body 25 is set so that the upper end surface thereof faces the lower end surfaces of the pair of left and right leg pieces 21b of the switch cover 21. The integrated piece 25b of the slide body 25 is formed so as to protrude to the front side, and when the integrated piece 25b abuts on the lower piece portion 24a of the fixed plate 24, the upward movement of the slide body 25 is restricted. It is comprised so that. Further, projecting pieces 25c projecting forward are formed on the upper end portion of the stopper piece 25a, and these projecting pieces 25c come into contact with the upper end surfaces of the guide pieces 24b of the fixed plate 24, thereby lowering the slide body 25. It is configured to be restricted to move to. The integrated piece 25b is U-shaped so as not to interfere with the abnormality display lamp 20.

On the other hand, the switch window 22 is integrally formed with operation pieces 22d that protrude upward from the upper ends of the pair of left and right leg pieces 22b. The operation pieces 22d of the slide body 25 are closed when the switch window 22 is closed. The left and right ends of the integrated piece 25b are close to each other. The left and right ends of the integrated piece 25b are respectively provided with a pair of left and right first and second bullet machines 26, 27 configured by appropriately bending a leaf spring.
Each first ammunition 26 corresponds to the energizing ammunition of the present invention. When the switch window 22 is in the closed position, the first ammunition 26 is energized between the operation piece 22d and the integrated piece 25b, and slides. Each stopper piece 25a of the body 25 is urged upward, and the upper end surface of each stopper piece 25a is elastically contacted with the lower end surfaces of the pair of left and right leg pieces 21b of the switch cover 21. Yes. On the other hand, the pair of left and right leg pieces 21b of the switch cover 21 are formed with stepped locking portions 21f by notching the front portion of the lower end portion. Then, when the switch cover 21 is pressed and the left and right leg pieces 21b are displaced to the back side and transformed into the acting posture, the stopper pieces 25a that are in contact with the left and right leg pieces 21b in a resilient manner are engaged with the locking portions 21f. It is configured to stop and hold the switch cover 21 in the operating posture.

The second elastic machine 27 corresponds to the interlocking body of the present invention, and includes a working piece 27a that extends downward and is elastically deformable. A lower end portion of the working piece 27a includes An engagement piece 27b that bends forward is formed. When the switch window 22 is in the closed posture, the operating piece 27a of the second ammunition 27 is configured to be positioned below the engagement receiving piece 22e formed at the back end of the operation piece 22d. In the process in which the switch window 22 changes from the closed position to the open position, the engagement receiving piece 22e is engaged with the second elastic machine engagement piece 27b, so that the slide body 25 is interlocked with the switch window 22. It is configured to move downward.
Note that the slide body 25 is subject to the downward movement restriction by the fixed plate 24 so that the first and second bullet machines 26 and 27 provided on the slide body 25 do not interfere with the operation tool 14a of the return switch 14. It is configured. For this reason, the interlocking state of the switch window 22 and the slide body 25 is released in the process of changing the switch window 22 into the open posture. At this time, the engagement receiving piece 22e of the switch window 22 is the second bullet By elastically deforming the operating piece 27a, the engaging piece 27b is pushed to the back side, and the engagement with the second elastic machine engaging piece 27b is released. For this reason, the front side surface of the partition piece 17d of the case body 17 is formed with a concave portion 17i for allowing elastic deformation of the second elastic machine operating piece 27a toward the back side.

  Further, the switch window 22 is formed with a lower piece 22f protruding from the lower end of the main body 22a to the back side, and the back end of the lower piece 22f is formed on a pair of upper and lower inclined surfaces 22g. ing. The lower piece 22f is urged by the third ammo 28 to hold the switch window 22 in the closed position. The urging force of the third ammo 28 is between the slide body 25 and the switch window 22 in the closed attitude. The switch window 22 is closed with the urging force of the first ammo 26 that presses the slide body 25 against the switch cover 21 and is set larger than the urging force of the first ammunition 26 provided therebetween. It is configured to be held in a posture. The third bullet machine 28 is supported on the back side surface of the case body partitioning piece 17d, and is bent so as to protrude to the front side of the partitioning piece 17d through a through hole 17j provided in the partitioning piece 17d. A bent portion 28a is formed on the switch window 22 in the closed position so as to abut the lower inclined surface 22g of the lower end of the lower piece 22f and urge the switch window 22 toward the closed position (upward). Yes. In the process of changing the switch window 22 between the closed posture and the open posture, the switch window 22 moves up and down while pushing the third bullet 28 to the back side. The folding surface 28a is configured so that the upper and lower inclined surfaces 22g of the lower piece 22f are in contact with each other as a guide surface, so that smooth vertical movement (opening / closing operation) is performed.

Next, the operation of the manual operation tool 12 will be described with reference to the drawing of FIG.
FIG. 8A shows the normal manual operation tool 12, and the switch cover 21 is in a non-acting posture with the slide body 25 receiving the urging force of the first ammunition 26 being pressed. On the other hand, the switch window 22 is held in the closed position by receiving the urging force of the third bullet 28, and the automatic closing switch 13 and the return switch 14 are not switched.
In the case where a fire or the like occurs from the above state, the switch cover 21 of the manual operation tool 12 is pushed to switch the automatic closing switch 13 and the shutter curtain 2 is lowered by its own weight. As shown in FIG. 8 (B), the cover 21 is formed in the left and right leg pieces 21b as the left and right leg pieces 21b are displaced to the back side as the automatic closing switch 13 is changed to the operating posture. The stopper piece 25a of the slide body 25 that receives the urging force of the first ammunition 26 and presses against the left and right leg pieces 21b is locked to the locking portion 21f, whereby the switch cover 21 is held in the operating posture. It is configured as follows.

When the control unit 6 is switched from the automatic closing mode to the normal opening / closing operation mode by operating the return switch 14 in a state where the abnormality is avoided, the switch window 22 is opened against the third bullet machine 28. In the process of opening the switch window 22 in the open position, the switch window 22 is formed in the switch window 22 as shown by the one-dot chain line in FIG. The engaged receiving piece 22e of the operation piece 22d thus engaged engages with the engaging piece 27b of the second elastic machine 27 to move the slide body 25 downward, whereby the switch cover 21 and the stopper piece 25b are locked. The switch cover 21 is released to return to the non-operating posture.
When the switch window 22 further moves down from the above state, the slide body 25 is restricted from downward movement by the protrusion 25c at the tip of the stopper piece 25a coming into contact with the upper end surface of each guide piece 24b of the fixed plate 24. Therefore, the engagement receiving piece 22e of the switch window 22 is elastically deformed so as to push the engagement piece 27b of the second elastic machine 27 into the concave portion 17i (back side) of the case body partitioning piece 17d. The engagement with the engagement piece 27b is released, and the switch window 22 is configured to be in the open position as shown by the solid line in FIG. 8C. In this state, the switch plate 22 is interposed via the mounting plate second through hole 18c. Thus, the operation tool 14a of the return switch 14 is exposed to the outside so that the operation tool 14a can be operated.

In the manual operation tool 12 configured in this way, whether or not the automatic closing switch 13 is operated (whether the control unit 6 is in the automatic closing mode) and whether the switch cover 21 is in the operating posture. Judgment can be made based on. When the abnormal state is avoided and the switch cover 21 is in the acting posture and the control unit 6 needs to be switched from the automatic closing mode to the normal opening / closing operation mode, it is necessary to operate the return switch 14. However, the switch cover 21 can be returned to the non-operating posture when the switch window 22 is changed to the open posture in order to operate the return switch 14.
Note that the switch window 22 can be returned to the closed position shown in FIG. 8A by being moved up using the clue piece 22c. In the process of changing from the open position to the closed position, the switch window 22 The inclined surface 22g of the piece 22f is set so as to smoothly change into the closed posture by abutting against the inclined surface 28a of the third bullet machine 28. Further, in the process of changing to the closed posture, the engagement receiving piece 22e at the distal end on the back side of the switch window operation piece 22d moves over the engagement piece 27b by elastically deforming the operation piece 27a of the second elastic machine 27, The left and right operation pieces 22d of the switch window 22 urge the left and right first ammunition 26, and the stopper piece 25a is in the non-acting posture of the left and right leg pieces of the switch cover 21. It is comprised so that it may contact | abut to 21b elastically.

As described above, the manual operation tool 12 is provided on the guide rail 4 on the left side of the opening.
That is, the guide rail 4 is made of a metal material, and the left and right sides of the shutter curtain 2 are formed in a guide groove 4c formed by a pair of front and back guide pieces 4a and a groove bottom piece 4b for guiding the front and back surfaces of the shutter curtain 2. The side portions are configured to be loosely fitted, and support pieces 4d and 4e, which are prospective surfaces extending in the front and back directions, are integrally formed at the groove opening side end portions of the respective guide pieces 4a. These support pieces 4d and 4e are configured to be fixed to a pair of front and back leg pieces 29a of a base material 29 having a U-shaped cross section fixed to a housing. In the present embodiment, the guide rail 4 is positioned on the lower side in FIG. 3B, and is surrounded by the guide piece 4a, the support piece 4d, and the base material leg piece 29a. The void S to be formed is formed. A notch hole 4f is formed in one support piece 4d in the front and back direction constituting the gap portion S, and the case body 17 portion of the manual operating tool 12 is housed in the gap portion S via the notch hole 4f. The upper and lower ends of the mounting plate 18 are fixed to the support piece 4d using screws 18e. As a result, the manual operation tool 12 is attached to the guide rail 4 without protruding from the guide rail support piece 4d, and the manual operation tool 12 gets in the way or the manual operation tool 12 accidentally collides with a load. It is configured so as to prevent the above problems.
In addition, 18f, 18g, and 18h are the sealing materials affixed on the attachment plate 18, respectively.
And the wiring 12a pulled out from the manual operation tool 12 is connected to the control part 6 via the space | gap part S of the guide rail 4, and without providing the metal pipe for wiring for a fire countermeasure separately. The controller 6 can be wired so that the members can be shared. Here, when the wiring 12a drawn out from the manual operation tool 12 is guided to the upper side of the guide rail 4 through the guide rail 4, the wiring 12a is clearly shown in FIG. 6B and FIG. Is the one that has been pulled out from the lower part of the case body 17 to the outside of the case body 17 and is inverted upward, and the inverted one is the outer surface 19c of the back cover body 19 (the case body of the present invention (Corresponding to the outer surface of the rear side) of the case body 17 is led above the case body 17.

  In the embodiment of the present invention configured as described above, when a fire or the like occurs and the smoke detector 10 senses and operates, when the automatic closing switch 13 of the manual operating tool 12 is pushed, the automatic closing device 16 operates to bring the brake release lever 15 into the release posture, and the shutter curtain 2 is lowered by its own weight. In this case, since the manual operation tool 12 is provided on the guide rail 4, the manual operation tool 12 does not impair the design of the wall surface, and the conventional operation tool 12 is provided on the wall surface near the opening. Even if the shutter device 1 is installed before the completion of the frame work, the position of the manual operation tool 12 can be determined, and there is no need to consider any changes after the shutter device 1 is installed. Can be. Furthermore, the wiring from the manual operating tool 12 can be drawn out to the control unit 6 side through the gap S of the guide rail 4, and the wiring of the manual operating tool needs to be stored in a metal pipe for fire prevention. Therefore, the number of parts can be reduced, and the configuration can be simplified and the cost can be reduced.

  As described above, in the case where the present invention is implemented, the manual operation tool 12 is provided on the guide rail 4. In this, the manual operation tool 12 is accommodated by the automatic closing switch 13 and the return switch 14. Since the case body 17 portion is configured to be embedded in the gap S of the guide rail 4, the manual operation tool 12 does not get in the way, and there is no problem that the luggage collides. It can be made excellent.

  In addition, in this device, the automatic closing switch 13 provided in the manual operating tool 12 is switched by switching the switch cover 21 to the operating posture by pushing the switch cover 21, and the conventional panel body is broken and pushed. In addition, it is not necessary to increase the size of the manual operation tool so that the panel body is easily broken, and it is possible to make the panel body excellent in maintainability without the trouble of changing the panel body after operating the automatic closing switch. Further, since the return switch 14 is configured to be pushed by opening the switch window 22, it is possible to prevent the return switch 14 from being inadvertently operated or mischievous.

  Further, in this device, the switch cover actuating means 23 is provided between the switch cover 21 and the switch window 22, and the switch cover 21 becomes the acting posture to switch the automatic closing switch 13 to switch the control unit 6. When the switch is switched to the automatic closing mode, the switch cover 21 is held in the action posture so that the control state of the control unit 6 can be recognized. By changing the switch window 22 to the open posture so as to operate the return switch 14 that is operated to switch to the mode, the switch cover 21 in the active posture can be returned to the non-active posture. As a result, after the emergency situation is avoided, the manual operation tool 12 can be returned to the original state without performing a special return operation, and the manual operation tool 12 is excellent in operability and further excellent in maintainability. be able to.

  Of course, the present invention is not limited to the above-described embodiment. In the first embodiment, the manual operation tool is provided on the prospective surface of the guide rail. You may make it provide in the finding surface which is this surface. In addition, it is not always necessary to provide the manual operation tool so that the case body is embedded in the gap formed in the guide rail, and the manual operation tool is arranged as an arrangement state in which the case body is exposed to the outside of the guide rail according to the installation location and application. Also good.

DESCRIPTION OF SYMBOLS 1 Shutter device 2 Shutter curtain 3 Switch 3a Shutter control panel 4 Guide rail 10 Smoke detector 11 Disaster prevention panel 12 Manual operation tool 13 Automatic closing switch 14 Return switch 15 Brake release lever 16 Automatic closing device 17 Case body 18 Mounting plate 18b First One through-hole 21 Switch cover 21f Locking part 22 Switch window 23 Switch cover operating means 24 Fixing plate 25 Slide body 25a Stopper piece 26 First bullet machine 27 Second bullet machine 28 Third bullet machine

Claims (2)

  In a self-weight drop type shutter device configured to lower the shutter curtain by its own weight with the brake device provided in the switch based on the operation of the manual operation tool being released, the manual operation tool is housed in the case body. The case body is built in the guide rail through a notch hole formed in the guide rail for moving and guiding the left and right sides of the shutter curtain, and the mounting plate fixed to the front side of the case body is cut out. An automatic closing switch configured to be fixed by being fixed to a hole edge of the hole, and the manual operating tool outputting an automatic closing signal for bringing the brake device into a brake releasing state, and the automatic closing switch And a switch cover that is pushed to switch the automatic closing switch. Is located on the inner surface side of the case body in parallel with the mounting plate, and has an automatic closing switch on the front side of the substrate, and a switch cover on the front side of the automatic closing switch. Descent type shutter device.   When the wiring drawn out from the manual operation tool is guided to the upper side of the guide rail via the inside of the guide rail, the wiring drawn out from the lower part of the case body to the outside is directed upward. 2. The self-weight descent shutter device according to claim 1, wherein the inverted one is guided to the upper side of the case body along the outer surface of the case body.

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