JP2013083114A - Opening/closing body stopping device for opening/closing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such an opening/closing body stopping device for an opening/closing apparatus that the structure can be simplified.SOLUTION: A disaster prevention signal BS is inputted continuously to a control circuit 200 provided in a shutter curtain stopping device that is an opening/closing body stopping device. When a contact of a microswitch 170 which has been opened by abutting a shutter curtain to an obstacle is closed by removing the obstacle, after the lapse of a time set by a timer circuit 211 of a delay device 210, a solenoid 126 of the control circuit 200 which has been closed is electrified. Therefore, a brake device which has been turned on by a tensioning force that acts on a bridging member coupled with the shutter curtain when the shutter curtain is abutted to the obstacle in the middle of closing movement is turned off, and the shutter curtain starts the closing movement again.

Description

  The present invention relates to an opening / closing body stop device of an opening / closing device for stopping the closing movement when the opening / closing body being closed contacts with an obstacle. The present invention is applicable to various opening / closing devices such as a shutter device used in combination with disaster prevention, an awning device, and a smoke curtain device.

  In a disaster prevention shutter device that is an opening and closing device that opens and closes the shutter curtain, the shutter curtain that has a disaster prevention function such as smoke prevention is closed and moved when an abnormal situation such as a fire occurs. Thereby, a disaster prevention zone is formed in a structure such as a building. In such a disaster prevention shutter device, when there is an obstacle in the closing direction of the shutter curtain and the shutter curtain that is moving in contact with the obstacle, the closing movement of the shutter curtain is stopped. . An apparatus for executing this stop is disclosed in Patent Document 1 below.

  The device shown in Patent Document 1 is a shutter curtain stop device of a disaster prevention shutter device, which is a shutter curtain that opens and closes in the vertical direction and a stationary member that is stationary with respect to the shutter curtain. This is a bridge member that has a floor, etc., and a part that spans between the shutter curtain and the floor, etc., and is joined to this shutter curtain when it comes into contact with an obstacle during the closing movement. A certain string-like member and a brake device that is mechanically turned on by a tension force acting on the string-like member and stops the closing movement of the shutter curtain are configured.

JP 2008-223459 A

  By the way, after the obstacle abutting against the shutter curtain is removed, it is preferable to close and move the shutter curtain, which has been stopped from the aspect of disaster prevention, to the fully closed position again, as shown in the above-mentioned Patent Document 1. In the shutter curtain stop device, when the obstacle is removed, the tension force acting on the string-like member disappears, so that the brake device is mechanically turned off. As a result, the shutter curtain that has been stopped is closed and moved again.

  However, when the brake device is mechanically turned off, the number of mechanical parts constituting the shutter curtain stop device is increased, which complicates the structure of the shutter curtain stop device.

  For this reason, the device for simplifying the structure of the shutter curtain stop device is required.

  An object of the present invention is to provide an opening / closing body stopping device for an opening / closing device that can simplify the structure.

  An opening / closing body stop device for an opening / closing apparatus according to the present invention is the opening / closing body stop device for an opening / closing apparatus for stopping the opening / closing movement of the opening / closing body, when the opening / closing body abuts an obstacle during the closing movement, The closing movement of the opening / closing body is mechanically stopped, and when the obstacle is removed, the opening / closing body is released from the stopped state for closing and moving the opening / closing body that has been stopped. It is characterized by this.

  In the present invention, the closing movement of the opening / closing body due to the contact of the opening / closing body with the obstacle in the middle of the closing movement is mechanically performed, but the opening / closing body is stopped when the obstacle is removed. Further, the release of the stop state of the opening / closing body for closing and moving the opening / closing body is performed electrically.

  Thereby, when the obstacle is removed, the release of the stop state of the opening / closing body for closing and moving the opening / closing body that has been stopped is mechanically performed, The number of machine parts constituting the opening / closing body stopping device can be further reduced.

  Therefore, according to the present invention, the structure of the opening / closing body stopping device of the opening / closing device can be simplified.

  Further, in the present invention, when the obstacle is removed, since the release of the stop state of the opening / closing body for closing and moving the opening / closing body which has been stopped is electrically performed, Compared with the case where the release state of the opening / closing body for closing and moving the opening / closing body is mechanically performed, the opening / closing body due to contact with the obstacle during the closing movement It is possible to flexibly perform the operation control of the opening and closing body after the stop movement of the door is stopped. That is, various operation controls can be performed on the opening / closing body that has stopped the closing movement due to contact with an obstacle in the middle of the closing movement.

  In the present invention, when the opening / closing body abuts an obstacle in the middle of the closing movement, the closing movement of the opening / closing body is mechanically stopped, and when the obstacle is removed, the opening / closing is stopped. The form, structure, etc. for allowing the release of the stop state of the opening / closing body for closing and moving the body to be performed electrically may be arbitrary, and one example is that the opening / closing body is immobile. A fixed member, and a portion spanned between the opening and closing body and the stationary member, and is coupled to the opening and closing body when the opening and closing body contacts the obstacle during the closing movement. A bridging member and a brake device that is mechanically turned on by a tension force acting on the bridging member to stop the closing movement of the opening / closing body, and is stopped when the obstacle is removed. For closing and moving the opening / closing body again Off the serial braking device is obtained so as to be electrically conducted.

  According to this, the stop of the closing movement of the opening / closing body due to the contact of the opening / closing body with the obstacle during the closing movement is performed by mechanically turning on the brake device. When removed, the brake device for closing and moving the stopped opening and closing body is turned off electrically.

  Thereby, when the obstacle is removed, the opening / closing body stopping device is compared with the case where the brake device for closing and moving the opening / closing body which has been stopped is mechanically turned off. The number of machine parts constituting the can be further reduced.

  Further, according to this, when the obstacle is removed, the brake device for closing and moving the stopped open / closed body again is electrically turned off. Compared with the case where the brake device for closing and moving again is mechanically performed, since the closing movement of the opening and closing body due to contact with the obstacle during the closing movement has been stopped Operation control of the opening / closing body can be performed flexibly. That is, various operation controls can be performed on the opening / closing body that has stopped the closing movement due to contact with an obstacle in the middle of the closing movement.

  In the present invention, the form and structure for electrically turning off the brake device may be arbitrary. For example, a solenoid that is energized by removing the obstacle, and an operation that is energized by the solenoid. It is possible to use a member that has an actuating member that is turned off, and the brake device is turned off by the actuating of the actuating member.

  Here, the type and structure of the actuating member are also arbitrary. As an example, the actuating member slides in the forward direction to a position where the brake device is turned on when the tension is applied to the bridging member, and the solenoid A member that is a slide member that slides in the reverse direction to a position where the brake device is turned off by energization can be given.

  As another example of the type and structure of the actuating member, when the tension force acts on the bridging member, the actuating member rotates in the forward direction to a position where the brake device is turned on, and the solenoid is energized to The thing which becomes the rotation member which rotates to a reverse direction to the position which turns off a brake device can be mentioned.

  And in these examples, it shall have a holding member for holding that the slide member and the rotation member stop at the position which turns on the brake device, and the above-mentioned by the holding member by energization of the solenoid It is preferable that the stopped holding state of the slide member or the rotation member is released.

  The type and structure of the holding member may be arbitrary as long as the slide member and the rotating member hold the stop at the position where the brake device is turned on. For example, the holding member May include those having an engaging portion that engages with an engaged portion provided on the slide member or the rotating member.

  In the present invention, when the solenoid that is energized when the obstacle is removed is provided, the solenoid is connected, and a control circuit for electrically controlling the brake device is provided. preferable.

  Here, the signal input to the control circuit for operating the control circuit may be arbitrary, for example, a disaster prevention signal (DC24V), a signal from a battery, or a signal from a commercial power supply (AC May be converted into direct current).

  When the signal input to the control circuit is the disaster prevention signal, the disaster prevention signal is preferably continuously input to the control circuit, and the solenoid is preferably energized by the disaster prevention signal.

  Note that the signal input to the control circuit indicates that the opening / closing body is in the fully closed position at least during the event that the opening / closing body abuts on the obstacle, that is, immediately after the opening / closing body starts to close. In the meantime, it is preferable to continuously input to the control circuit.

  In the present invention, when the control circuit is provided, it is preferable to provide an obstacle removal detection means for detecting that the obstacle has been removed.

  The type and structure of the obstacle removal detecting means may be arbitrary. For example, the obstacle removing detecting means may detect that the tension force acting on the bridging member has disappeared, and is in contact with the opening / closing body. It may detect that the obstacle itself has been removed.

  As an example of the obstacle removal detecting means in the latter case, the control circuit is connected in series with the solenoid, and is turned off when a tension is acting on the bridging member, and is acting on the bridging member. An obstacle removal detection switch means that is turned on when the tension has disappeared can be cited.

  According to this, when the obstacle is in contact with the opening / closing body and a tension force is acting on the bridging member, no current flows through the solenoid of the control circuit. On the other hand, when the tension force acting on the bridge member disappears due to the removal of the obstacle, a current flows through the solenoid of the control circuit, and the brake device is turned off.

  The obstacle removal detection means may or may not serve as an obstacle detection means for detecting an obstacle. In the latter case, the obstacle removal detection means and the obstacle detection means coexist.

  In the present invention, when the control circuit is provided, when the obstacle is removed, the brake device for electrically closing and moving the stopped opening / closing body is electrically turned off. A delay device for delaying this may or may not be provided.

  According to the former case, the electrical switching of the brake device from on to off is not instantaneously performed due to the delay action of the delay device. Therefore, the closing and resuming of the opening / closing body by the removal of the obstacle starts with a time delay from the removal of the obstacle. For this reason, the removal operation of the obstacle has a time margin. It can be carried out. That is, the obstacle can be moved from one space partitioned by the opening / closing body to the other space with a time margin.

  The type and structure of the delay device is to delay the electrically turning off of the brake device for closing and moving the open / close body that has been stopped when the obstacle is removed. Any can be used.

  The delay device may be one that electrically delays the turning off of the brake device being electrically performed, or may be one that is mechanically performed.

  As an example of the delay device in the former case, the delay device is connected to the control circuit, and the delay device includes a timer circuit that counts an elapsed time from when the obstacle is removed, and the solenoid. Timer switch means that is connected in series to the timer circuit and is turned on and off by the timer circuit, and the timer circuit until the elapsed time counted by the timer circuit reaches a predetermined time. An example is a device that turns off the switch means and turns on the timer switch means when the elapsed time counted by the timer circuit reaches a predetermined time (so-called on-delay timer).

  According to this, since the timer switch means is turned off until the elapsed time counted by the timer circuit reaches a predetermined time, no current flows through the solenoid of the control circuit. On the other hand, when the elapsed time counted by the timer circuit reaches a predetermined time, the timer switch means is turned on, so that a current flows through the solenoid of the control circuit, and the brake device is turned off. It becomes. Note that it is preferable to turn off the timer switch means (to prevent current from flowing through the timer circuit) after the brake device is turned off.

  Further, in the present invention, when the control circuit is provided, the opening / closing body in the closing movement reaches the fully closed position after reaching a position separated from the fully closed position by a predetermined distance in the opening movement direction. In the meantime, the closing movement of the opening / closing member is stopped by mechanically turning on the brake device when it comes into contact with the obstacle. The brake device for closing and moving the body again may not be turned off.

  According to this, the opening / closing body in the closing movement hits the obstacle from a position spaced a predetermined distance in the opening movement direction (of the opening / closing body) from the fully closed position to the fully closed position. When contacted, the opening / closing body continues to stop at the position in contact with the obstacle without moving again, even if the obstacle is removed. On the other hand, when the opening / closing body in the closing movement comes into contact with the obstacle during the period from the fully open position to the position spaced apart from the fully closed position in the opening movement direction by a predetermined distance, After the obstacle is removed, the obstacle moves again.

  Here, the predetermined distance means that when the obstacle is a person or the like, it is difficult for a person or the like contacting the opening / closing body to pass from one space partitioned by the opening / closing body to the other space. It means the distance from the position of the closing end of the opening / closing body to the fully closed position when the opening / closing body is closed to the extent.

  The configuration of the control circuit for realizing the above-described operation may be arbitrary, and as an example, the opening / closing body that is closing is moved from the fully closed position to the position separated by the predetermined distance in the opening movement direction. Opening / closing body position detecting switch means that is turned on until reaching the position and is turned off when the opening / closing body that is being closed is moved to the position that is spaced apart from the fully closed position in the opening movement direction by the predetermined distance. The thing connected in series can be mentioned.

  According to this, when the opening / closing body in the closing movement comes into contact with the obstacle from the position that is spaced apart from the predetermined position in the opening movement direction from the fully closed position to the fully closed position, Since the opening / closing body position detection switch means is turned off, no current flows through the solenoid of the control circuit. For this reason, even if the obstruction is removed, the opening / closing body does not move again and continues to stop at the position in contact with the obstruction. On the other hand, even if the opening / closing body in the closed movement contacts the obstacle from the fully open position until reaching the position separated from the fully closed position by a predetermined distance in the opening movement direction, The position detection switch means remains on. For this reason, after the obstacle is removed, a current flows through the solenoid of the control circuit, the brake device is turned off, and the opening / closing body is closed and moved again.

  In the present invention, the position where the obstacle removal detecting means is arranged is arbitrary, but is preferably arranged at a position where it cannot be visually recognized from the outside. According to this, the external force received by the obstacle removal detection means can be further reduced. As an example of the position where the obstacle removal detecting means is arranged, the inside of an opening / closing body housing member for housing the opening / closing body that has reached the fully opened position can be cited. In addition, “fully open” includes the meaning of substantially fully open, and “substantially fully open” means, for example, substantially “fully open” in order to achieve the original purpose even if there is a slight difference. What you can do. Even when the obstacle removal detection means also serves as the obstacle detection means for detecting that the opening / closing body abuts on the obstacle, the obstacle removal detection means It is preferable that it is arrange | positioned in the position which cannot be visually recognized.

  In the present invention, the position where the bridging member is disposed is also arbitrary, but is preferably disposed at a position where it cannot be visually recognized from the outside. According to this, the external force which the said bridge member receives can be decreased more. It should be noted that all or a part of the bridging member may be arranged at a position where it cannot be visually recognized from the outside.

  In the present invention, an electric motor device for moving the opening / closing body in at least one of closing movement and opening movement may or may not be provided. That is, both the opening and closing movements of the opening / closing body may be performed by the driving force of the electric motor device, or only the opening movement of the opening / closing body may be performed by the driving force of the electric motor device. Good.

  In the present invention, the type and structure of the opening / closing body is arbitrary, and as an example, the opening / closing body includes an opening / closing body main part, and an opening / closing body sub-part provided movably with respect to the opening / closing body main part, Can be mentioned.

  In this case, the bridging member is assumed to move with respect to the opening / closing body by the opening / closing movement of the opening / closing body, and is arranged on the bridging member and the opening / closing body, and is moved during the closing movement of the opening / closing body. A mechanical coupling device for mechanically coupling the opening / closing body and the bridging member by moving the opening / closing body sub-part relative to the opening / closing body main part by the obstacle in contact with the obstacle You may make it provide.

  According to this, the opening / closing body sub-portion moves with respect to the opening / closing body main part by the obstacle abutted in the middle of the closing movement of the opening / closing body, so that the opening / closing body and the bridge member are machined. It becomes a state connected to the expression. As a result, a tension force in the closing movement direction of the opening / closing body acts on the bridging member, and the closing movement of the opening / closing body is prevented and stopped by the bridging member. For this reason, the bridging member is a mechanical member for stopping the closing movement of the opening / closing body in contact with the obstacle.

  In the present invention, the bridging member may be of any shape and structure, and the bridging member may be, for example, a telescopic telescopic rod-like member or block-like member, It may be a shaped member. When the bridging member is the string member, the string member may be a metal wire, a synthetic resin string, a rope, or a chain including a roller chain and a ball chain. Alternatively, other elongated members may be used.

  When the bridging member is the string-like member, the string-like member has a U shape in which a portion corresponding to the mechanical coupling device is a folded portion, and the string-like member can be fed out freely. The winding device may be connected to a winding device that winds up and down, and the winding device may be disposed on the stationary member that is stationary relative to the opening / closing body or on a stationary member that is different from the stationary member. According to this, the string-like member can be made to follow the opening / closing movement of the opening / closing body by winding and unwinding the winding device, and thereby the string-like member can be opened and closed by the opening / closing body. Movement with respect to the opening / closing body can be caused by movement.

  When the bridging member is the string-like member, the string-like member extends linearly except for the portion corresponding to the mechanical coupling device, and one of the string-like members Even if the end portion reaches the stationary member that is immovable with respect to the opening and closing body, and the other end portion of the string-like member reaches the stationary member that is different from the stationary member or the stationary member. Good. This also makes it possible to cause the string-like member to move relative to the opening / closing body, that is, to move relative to the opening / closing body by opening / closing movement of the opening / closing body.

  In the present invention, when the closing movement direction of the opening / closing body is a downward direction, the opening / closing body that is in contact with the obstacle during the closing movement acts on the bridge member based on the weight of the opening / closing body. You may make it stop with the tension which does. In other words, the opening / closing body sub-portion moves with respect to the opening / closing body main part by the obstacle abutted during the closing movement of the opening / closing body, whereby the opening / closing body and the bridging member are moved to the machine. When the mechanical coupling is achieved by the type coupling device, a tension force due to the weight of the opening / closing body acts on the bridge member, and the closing movement of the opening / closing body is stopped by the tension force. Also good.

  In the above-described present invention, each of the immovable members described above may be an arbitrary member as long as it is a member that is immovable with respect to the opening / closing body that opens and closes. Members that form the outer frame of the opening (including the floor of the opening), guide members that guide the opening / closing movement of the opening / closing body, a structural housing of the opening / closing device, and a building in which the opening / closing device is installed And so on for the structure.

  In the present invention, the mechanical coupling device can be disposed at an arbitrary position of the opening / closing body, and as described above, the opening / closing body includes the opening / closing body main portion and the opening / closing body sub-portion. In this case, the arrangement position of the mechanical coupling device may be the main part of the opening / closing body or the sub part of the opening / closing body. However, when the mechanical coupling device is disposed in the opening / closing body main part, the part of the opening / closing body that moves by contacting the obstacle during the closing movement of the opening / closing body is the opening / closing body sub-part. And since it is not the said opening-and-closing body main part, it can eliminate that the said mechanical coupling device moves at the time of contact | abutting to the said obstruction. Thereby, the structure for making the said opening-closing body and the said bridging member mechanically couple | bonded with the said mechanical coupling device can be simplified.

  Further, in the present invention, when the closing movement direction of the opening / closing body is a downward direction, the opening / closing body includes an opening / closing body main body and an end member disposed below the opening / closing body main body. In addition, the end member includes a fixed portion fixed to the opening / closing body main body, and a movable portion disposed below the fixed portion and movable in the vertical direction with respect to the fixed portion. The opening / closing body main part and the fixed part constitute the opening / closing body main part, and the movable part can be the opening / closing body sub-part.

  According to this, when the opening / closing body is closing and moving, the opening / closing body is in contact with the obstacle existing in the closing / moving direction. Is performed by abutting against the obstacle, so that the obstruction can move the opening / closing body sub part with respect to the opening / closing body main part more reliably.

  In the present invention, the coupling method for mechanically coupling the opening / closing body and the bridging member by the mechanical coupling device described above may be in any form or structure.

  For example, the first coupling method is to sandwich the bridging member by a plurality of clamping members arranged on the opening / closing body. In this case, the clamping member may be a lever member that can swing, or may be a roller, a pin, or the like.

  Further, in the second coupling method, the bridging member, which is an elongated member such as the aforementioned string-like member, is inserted into a hole inside the cylindrical member, and reaches the hole inside this cylindrical member. A groove is formed over the entire length of the cylindrical member, and the obstacle is formed on the outer surface of the cylindrical member arranged in a fixed state at a fixed position of the opening / closing body by contact with the obstacle. By causing the load generated by the contact of the cylindrical member to act on the outer surface of the cylindrical member, the width of the split groove is reduced to reduce the outer diameter of the cylindrical member, thereby reducing the diameter of the cylindrical member. The bridging member is sandwiched between the inner surfaces of the holes, and the bridging member is locked by the cylindrical member arranged in a fixed state at a fixed position of the opening / closing body.

  Further, in the third coupling method, a rotary member such as a ratchet wheel that is rotated by the bridging member that is an elongated member such as a string-like member is provided in the open / close body, and the open / close body is provided on the rotary member. A claw member such as a ratchet member disposed in

  Furthermore, in the fourth coupling method, the bridging member, which is an elongated member such as a string-like member, extends linearly except for the portion corresponding to the mechanical coupling device as described above. The portion of the bridging member corresponding to the mechanical coupling device is wound around a rotating member, and the rotating member includes the opening / closing body main portion and the opening / closing body sub-portion. The opening / closing body main part of the body is connected to the opening / closing body main part and the opening / closing body sub-part by a link mechanism bent in a square shape toward the bridging member extending linearly. The opening / closing body can be bent in the opening / closing movement direction, and the link mechanism is bent by contact with the obstacle, so that the rotating member moves away from the bridging member extending linearly. Slide the rack It is to tensioning to the transfer member.

  The brake device of the opening / closing body stopping device of the opening / closing device according to the present invention may be a single device alone, or, for example, at least an opening movement of an opening movement and a closing movement of the opening / closing body It may be a part of an opening and closing machine that is a driving device for opening and closing the opening and closing body in combination with an electric motor device for causing the opening and closing.

  In the present invention, the closing movement of the opening / closing body is mechanically stopped when the opening / closing body abuts on an obstacle in the middle of the closing movement, and stopped when the obstacle is removed. The form, structure, and the like for electrically releasing the stop state of the opening / closing body for closing and moving the opening / closing body may be as follows.

  That is, a brake device for stopping the opening / closing movement of the opening / closing body, a control unit for electrically controlling the brake device, and an end of the closing movement direction of the opening / closing body during the closing movement of the opening / closing body When the seat plate, which is a member (tip member), comes into contact with an obstacle, the opening / closing movement of the opening / closing body is guided from both ends of the seat plate in the direction (width direction) orthogonal to the opening / closing movement direction of the opening / closing body. An engaging portion that protrudes toward the guide member and engages with an engaged portion (for example, a protruding portion protruding in the width direction) provided on the guide member at a predetermined interval in the opening / closing movement direction of the opening / closing body. The stop mechanism that stops the closing movement of the opening and closing body by protruding, and the electric that is provided on the seat plate and is turned on when contacting the obstacle, and turned off when the obstacle is removed. switch And the step is provided on the seat plate by being energized, retracting the engaging portion protruding inside of the seat plate, and a solenoid for receiving may be one having a.

  In this example, when the control unit receives a control signal such as a disaster prevention signal when the opening / closing body is in an open state, the control unit releases the brake device, so that the opening / closing body is closed by its own weight. Thus, when the seat plate of the opening / closing body abuts on the obstacle during the closing movement of the opening / closing body, the closing movement of the opening / closing body is stopped by the operation of the stop mechanism.

  On the other hand, when the obstacle is removed, the electric switch means provided on the seat plate is switched from on to off. When the control unit detects this switching, a delay time by a timer or the like provided in the control unit is secured as necessary, and then the solenoid provided in the seat plate is controlled by the control unit. A signal is input. Thereby, the solenoid is energized, and the engaging portion engaged with the engaged portion is retracted and stored inside the seat plate. That is, when the solenoid is energized, the operation of the stop mechanism is released. As described above, since the brake device is released under the control of the control unit that has received a disaster prevention signal or the like, when the operation of the stop mechanism is released, the stopped open / closed body is again weighted. It will be moved by closing.

  Of course, when an electric motor that is a driving means for driving the opening / closing body is provided, the opening / closing body is slightly opened in the moving direction by rotating the electric motor reversely under the control of the control unit. After the movement, the opening / closing body may be closed and moved again by its own weight or the driving force of the electric motor.

  A signal line for transmitting a signal from the electrical switch means, a control signal from the control unit, and a power line for supplying power to these devices are wired from the control unit to the seat plate. Tighten up.

  Further, as a modification of the above-described example, the on / off detection of the electric switch means and the control for releasing the operation of the stop mechanism are not performed by the control unit described above, but inside the seat plate. In addition, a control unit and a power supply unit different from the control unit may be arranged, and the control unit may perform the above control.

  Also in this example, when the operation of the stop mechanism is released, the brake device is released under the control of the control unit that has received a disaster prevention signal or the like. It will be moved by closing.

  The present invention can be applied to an arbitrary opening / closing device in which an arbitrary opening / closing body is freely movable. One example is a shutter device in which the opening / closing body is a shutter curtain. The present invention can also be applied to hinged door devices and sliding door devices, and can also be applied to awning devices, smoke-proof banner devices, and the like.

  When the present invention is applied to a shutter device, the shutter device may be a shutter device for an arbitrary use. That is, the shutter device to which the present invention is applied may be a management shutter device in which the shutter curtain is opened and closed to open and close an opening such as an entrance by operating the operation device, and has a disaster prevention function such as smoke prevention. It may be a shutter device for disaster prevention to form a disaster prevention zone in a structure such as a building by closing and moving the shutter curtain when an abnormal situation such as a fire occurs, and it may also be a combined shutter device for management and disaster prevention . The disaster prevention shutter device includes a disaster prevention shutter device for lifting means for closing the vicinity of the lifting means such as an elevator with a fully closed shutter curtain.

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

  Further, in the shutter device to which the present invention is applied, the shutter curtain may be configured by an arbitrary member and structure. That is, all or the main part of the shutter curtain may be formed by a plurality of slats, may be formed by a sheet, may be formed by a plurality of pipes connected by a link member, or may be formed by a plurality of panels. It may be formed with a net, and may be formed by combining a plurality of members among these members.

  Further, the opening / closing movement direction of the shutter curtain may be the vertical direction, or may be the horizontal direction. When the opening / closing movement direction of the shutter curtain is the vertical direction, the closing movement direction of the shutter curtain may be the downward direction or the upward direction.

  Further, at least the opening movement of the opening movement and closing movement of the shutter curtain may be performed by the driving force of the electric motor device, or may be performed manually.

  Further, when the shutter curtain opening / closing movement direction is the vertical direction and the closing movement is downward, the closing movement may be performed by the dead weight of the shutter curtain, or the dead weight of the shutter curtain. The driving force of the electric motor device may be added.

  Further, the means for stopping the shutter curtain before closing and moving in the downward direction may be the brake device, or a shutter such as a seat plate provided at the end of the shutter curtain on the closing side. The locking device provided with the locking member locked to a curtain structural member may be sufficient.

  In the brake device, for the shutter device that performs the opening and closing movement of the shutter curtain by winding and unwinding of the shutter curtain by the winding shaft, the opening and closing of the opening and closing machine that is a driving device for rotating the winding shaft A brake device for braking the electric motor device is included.

  Further, in the locking device, the locking member is locked to a shutter curtain constituent member such as a seat plate when the shutter curtain reaches the fully open position, thereby stopping the shutter curtain in the fully open position. included.

  Further, the opening and closing movement of the shutter curtain may be performed by winding and unwinding the shutter curtain by the winding shaft as described above, or the opening movement of the shutter curtain may be performed by the shutter like an overhead door. It may be performed while maintaining the same shape as the overall shape when the curtain has reached the fully closed position (including a shape that is slightly deformed but substantially the same shape), or The opening movement of the shutter curtain may be performed while the shutter curtain is deformed into a curved shape or the like, or a plurality of structural members such as the above-described panel constituting the shutter curtain are connected when the shutter curtain is closed. When the shutter curtain opens and moves (when the shutter curtain is stored), Separated, may be these components is not so overlapped in the thickness direction.

  Further, the opening and closing movement of the shutter curtain is performed by winding and unwinding the shutter curtain by forward and reverse rotation of the winding shaft, and the downward closing movement of the shutter curtain is in addition to the own weight of the shutter curtain or its own weight. For the shutter device that is driven by the driving force of the electric motor device, the winding shaft 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, The upward movement of the shutter curtain may be performed using the return force accumulated in the return spring as an auxiliary force.

  When the opening / closing movement of the shutter curtain is performed by winding and unwinding the shutter curtain by the winding shaft as described above, the opening / closing body position detection switch means described above performs the opening / closing movement of the shutter curtain. It may be provided on a guide member (guide member) for guiding and actuated (turned on) by abutting on the shutter curtain that opens and closes. The winding shaft of the winding shaft that winds and feeds the shutter curtain may be used. It may be activated (turned on) when the number of rotations from the fully open position reaches a predetermined number.

  In the present invention, when the brake device is combined with the electric motor device and becomes a part of the opening / closing device, in the event of an emergency such as a fire, the disaster prevention An automatic closing device for electrically turning off the brake device that has been holding the open / close body in a fully open state and closing and moving the open / close body by receiving a signal (the disaster prevention signal is input); You may make it prepare. As described above, the automatic closing device is to electrically turn off the brake device when the disaster prevention signal is input. Therefore, the opening / closing body stopping device of the opening / closing device according to the present invention described above, A function of the automatic closing device may be further provided. That is, the opening / closing body stop device for an opening / closing device according to the present invention may also serve as the function of the automatic closing device.

  In the present invention, when the automatic closing device is provided, a manual closing device for manually operating the automatic closing device may be provided. According to this, in the event of an emergency such as the occurrence of a fire, the automatic closing device has not been activated due to a failure, or a person who has discovered a disaster should determine that the opening / closing body should be closed and moved as soon as possible. In this case, the opening / closing body can be manually closed and moved. That is, the brake device can be forcibly turned off manually.

  According to the present invention, an effect that simplification of the structure of the opening / closing body stopping device of the opening / closing device can be obtained.

FIG. 1 is a front view showing the entirety of a shutter device serving as an opening / closing device according to an embodiment of the present invention. 2 is a cross-sectional view taken along line S2-S2 of FIG. FIG. 3 is a cross-sectional view showing the internal structure of the switch which is the drive device shown in FIGS. 1 and 2. FIG. 4 is a perspective view showing a mechanical obstacle detection device for mechanically detecting an obstacle when the shutter curtain as an opening / closing body abuts on the obstacle while moving. FIG. 5 is a view showing the front side of the case of the mechanical coupling device constituting the mechanical obstacle detection device shown in FIG. 4. FIG. 6 is a front view showing the internal structure of the mechanical coupling device. FIG. 7 is a front view showing the mechanical coupling device attached to the shutter curtain. 8 is a cross-sectional view taken along line S8-S8 in FIG. 9 is a cross-sectional view taken along line S9-S9 in FIG. FIG. 10 is an opening / closing body sub-portion, which is the same as FIG. 6 showing when the movable portion of the seat plate, which is the curtain sub-portion, is raised with respect to the obstacle by contact with the obstacle. FIG. FIG. 11 is a view similar to FIG. 6 showing a state where the locking wire is locked by the mechanical coupling device when the shutter curtain in the closing movement comes into contact with the obstacle. FIG. 12 is a diagram showing an internal structure of the second processing device of the mechanical obstacle detection device shown in FIG. FIG. 13 is a front view showing the internal structure of the automatic closing device shown in FIG. FIG. 14 is a plan view showing the internal structure of the automatic closing device. FIG. 15 is a view similar to FIG. 14 showing when the solenoid of the automatic closing device is energized and excited due to a disaster such as a fire. FIG. 16 is a view similar to FIG. 14 showing when the energization and excitation of the solenoid of the automatic closing device are stopped. FIG. 17 is a view similar to FIG. 12 showing when the microswitch serving as the obstacle detection means that also serves as the obstacle removal detection means of the second processing apparatus is activated by the shutter curtain being in contact with the obstacle. . FIG. 18 is a circuit diagram showing a control circuit constituting a shutter curtain stop device which is an opening / closing body stop device. FIG. 19 is a flowchart showing an operation flow when the shutter device according to the present embodiment functions as a disaster prevention shutter device. FIG. 20 is a continuation of the flowchart of FIG. FIG. 21 is a diagram showing a continuation of the flowchart of FIG. FIG. 22 is a circuit diagram illustrating an operation state immediately after a disaster prevention signal is input to the control circuit of FIG. FIG. 23 is a circuit diagram illustrating an operation state immediately after the brake device is turned off and the shutter curtain starts to move after the operation state illustrated in FIG. 22. FIG. 24 is a circuit diagram showing an operation state when the fully open limit switch is turned off after the operation state shown in FIG. FIG. 25 is a circuit diagram illustrating an operation state when the shutter curtain that is being closed and moved contacts an obstacle after the operation state illustrated in FIG. 24 and the brake device is turned on. FIG. 26 is a circuit diagram showing an operation state when the time measurement by the timer circuit of the delay device for delaying that the obstacle is removed and the brake device is turned off after the operation state shown in FIG. 25 is started. is there. FIG. 27 is a circuit diagram showing an operation state when the set time of the timer circuit elapses after the operation state shown in FIG. 26, the timer contact of the delay device is closed, and the solenoid is energized. FIG. 28 is a circuit diagram showing an operation state immediately after the brake device is turned off after the operation state shown in FIG. 27 and the shutter curtain starts closing and moving again. FIG. 29 is a circuit diagram showing an operation state when the shutter curtain reaches the fully closed position. FIG. 30 is a circuit diagram similar to FIG. 18 showing a control circuit according to an embodiment in which no delay circuit is provided. FIG. 31 is a circuit diagram showing an operation state when the shutter curtain in the closing movement comes into contact with an obstacle 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 has a function as a management shutter device in which a shutter curtain moves to open and close in order to open and close an opening such as an entrance and exit, and a shutter having a disaster prevention function such as smoke prevention. It has a function as a shutter device for disaster prevention to form a disaster prevention zone in a structure such as a building by closing and moving the curtain when an abnormal situation such as a fire occurs (hereinafter referred to as "emergency") ing.

  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. Left and right guide rails 6 in which both end portions in the left and right direction of the shutter curtain 1, in other words, both end portions in the width direction of the shutter curtain 1 are slidably inserted are attached to the left and right building housings 3. Guided by these guide rails 6, the shutter curtain 1 moves up and down.

  A shutter box 8, which is a shutter curtain storage member for storing the shutter curtain 1 that has reached the fully opened position, is disposed in the ceiling space 7 that is partitioned by the ceiling member 5 with respect to the entrance / exit 2. As shown in FIG. 2, which is a cross-sectional view taken along line S2-S2 of FIG. 1, the box 8 is coupled to a building housing 9 such as a falling wall existing in the ceiling space 7 with a coupling tool 10 such as a bolt. Yes. 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 apparatus for driving the winding shaft 11, in other words, a driving apparatus for moving the shutter curtain 1 to open / close, is also shown in FIG. 14 between the drive sprocket wheel 12A attached to the drive shaft 14, the driven sprocket wheel 12B attached to the one end of the take-up shaft 11, and the sprocket wheels 12A, 12B. It is transmitted to the take-up shaft 11 through the driving force transmission means 12 by the endless roller chain 12C laid over.

  In addition, the opening / closing machine 13 of this embodiment is attached to the bracket member 15 coupled to one of the left and right side surface portions 8A and 8B of the shutter box 8.

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

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

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

  Among the left and right building housings 3 shown in FIG. 1, one of the building housings 3 is opened and moved upward with respect to the doorway 2 by the driving force of the electric motor device 18, that is, electrically. An operating device 30 is attached as opening / closing body opening / closing / stopping operation instructing means for closing and moving downward and stopping. Although not shown, the operating device 30 is provided with an “open” button, a “close” button, and a “stop” button.

  Further, the shutter curtain 1 occupies most of the area of the shutter curtain 1, and a curtain body 1A whose upper end is coupled to the winding shaft 11 and a seat plate 1B provided at the lower end of the curtain body 1A. It has become. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically. The curtain main body 1A is an opening / closing body main body in the present embodiment, and the seat plate 1B is an end member in the present embodiment.

  As shown in FIG. 1, in the present embodiment, a control device 27 that performs drive control of the switch 13 for operating the shutter device as a management shutter device in a normal state, and the shutter device in an emergency (for example, And a disaster prevention interlock control device 181 that performs control for operating as a disaster prevention shutter device when an external disaster prevention signal is received.

  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. If the “close” button of the operating device 30 is operated when the shutter curtain 1 that has reached a halfway position in between is in a half-closed state (half-open state), a control for inputting a close signal from this “close” button Since the solenoid 24 of the brake device 19 is energized by the control of the device 27, the brake device 19 is turned off and the coil 25 of the electric motor device 18 is energized. For this reason, the drive shaft 14 rotates in the forward 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 rotated by the forward rotation of the winding shaft 11. It is drawn downward from 11 and moves to close. When the shutter curtain 1 closed and moved thereby reaches the fully closed position, a signal from a fully closed limit switch (not shown) that is a sensor that detects the fully closed position is input to the solenoid 24 by the control of the control device 27. The energization 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 the semi-closed state), the solenoid 24 of the brake device 19 is energized under the control of the control device 27 to which an open signal is input from the “open” button. 19 is turned off, and the coil 25 of the electric motor device 18 is energized. 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 by the control of the control device 27 to which a signal from a fully open limit switch (not shown) that is a sensor that detects the fully open position is input, and the brake device 19 Is turned on by the spring 23, and the power supply to the coil 25 is cut off.

  Further, when the “stop” button is operated while the shutter curtain 1 is being closed and moved, the energization to the solenoid 24 is cut off by the control of the control device 27 to which a stop signal is input from the “stop” button. Therefore, the brake device 19 is turned on by the spring 23, and the energization of the coil 25 of the electric motor device 18 is interrupted, whereby the shutter curtain 1 stops at that position. Similarly, when the “stop” button is operated while the shutter curtain 1 is being opened and moved, the energization of the solenoid 24 is controlled by the control of the control device 27 to which the stop signal from the “stop” button is input. Since it is interrupted | blocked, while the brake device 19 returns to ON with the spring 23, electricity supply to the coil 25 of the electric motor apparatus 18 is interrupted | blocked, and, thereby, the shutter curtain 1 stops in the position.

  As can be seen from the above description, the floor 4, the guide rail 6, the shutter box 8, and the lintel 16 are not moved with respect to the shutter curtain 1 that opens and closes. The guide rail 6, the shutter box 8, the lintel 16, and the like are immovable members that are immovable with respect to the shutter curtain 1.

  In addition, the winding shaft 11 that rotates forward and backward as described above 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 1 is moved upward. The opening movement may be performed using the return force accumulated in the return spring as an auxiliary force.

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

  The load in the A direction acting on the first portion 31A in this way is performed by an automatic closing device 32, a manual closing device 184, etc., which will be described later, attached to the switch 13.

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

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

  4 shows a mechanical obstacle for mechanically detecting the obstacle 34 when the seat plate 1B of the shutter curtain 1 abuts against the obstacle 34 shown in FIG. The detection device 35 is shown. This mechanical obstacle detection device 35 is a locking wire that is a bridging member that has a bridging portion between the lintel 16 that is the aforementioned stationary member and the shutter curtain 1. 36 and one end of this flexible locking wire 36 are coupled, and the first processing device 37 that processes this one end is coupled to the other end of the locking wire 36 The second processing unit 38 that processes the other end and the locking wire 36 are arranged in the middle of the length of the locking wire 36, and the locking wire 36 is moved when the shutter curtain 1 comes into contact with the obstacle 34. A mechanical coupling device 39 for mechanically locking, in other words, for bringing the shutter curtain 1 and the locking wire 36 into a mechanically coupled state is provided. The mechanical coupling device 39 is attached to the shutter curtain 1 as will be described later.

  The locking wire 36 serving as the above-described bridging member is also a string-like member and an elongated member in the present embodiment.

  The first processing device 37, the second processing device 38, and the mechanical coupling device 39 are connected to each other by the lock wire 36, and therefore, mechanical obstacles including these devices 37 to 39 as constituent elements. The detection device 35 is a unit that is easy to handle.

  The first processing device 37 is provided with a rotatable reel 40, and the locking wire 36 is wound around the reel 40 to which one end of the locking wire 36 is coupled. A return spring 41 such as a mainspring spring is connected to the reel 40, and when the lock wire 36 rotates the reel 40 and is drawn out from the reel 40, a return force is accumulated in the return spring 41. When the locking wire 36 is slack, the reel 40 is rotated in the direction in which the locking wire 36 is wound by the return force accumulated in the return spring 41.

  The second processing device 38 is provided with a rotating member 42, and the other end of the locking wire 36 is connected to the rotating member 42.

  In addition, the first processing device 37 and the second processing device 38 are disposed on the upper surface of the base member 44 that is fixedly disposed on the lintel 16 with bolts or welding. For this reason, the first processing device 37 and the second processing device 38 are disposed. The processing device 38 is a unit structure 45 connected by a base member 44. Therefore, in order to perform the operation of laying the lock wire 36 between the lintel 16 and the shutter curtain 1, the operation of arranging the first processing device 37 and the second processing device 38 in the lintel 16 is a unit structure. The work 45 can be completed simply by performing the work of fixing and installing the object 45 to the lintel 16 with bolts or welding, and this work can be easily performed.

  Further, as described above, in order to connect the other end of the locking wire 36 to the rotating member 42 of the second processing device 38, as shown in FIG. It is passed through a slit 17 of a lintel 16 disposed on the ceiling member 5. That is, the lock wire 36 has a length that extends over the top and bottom of the ceiling member 5, and the lock wire 36 is inserted into the slit 17 of the lintel 16 without contacting the lintel 16. Yes.

  The arrangement positions of the first processing device 37 and the second processing device 38 in the lintel 16 can be adjusted in the thickness direction of the shutter curtain 1. This will be described. As shown in FIG. 4, the machine casing 46 of the first processing device 37 is a fastening device such as a screw inserted into a long hole 47 formed in the side surface portion 44 </ b> A of the base member 44. 48 is attached to this side surface portion 44A. Therefore, the attachment position of the first processing device 37 on the base member 44 can be adjusted in the thickness direction of the shutter curtain 1 by the length of the long hole 47. Further, the substrate portion 49A of the machine casing 49 of the second processing apparatus 38 is attached to the base member 44 with a fastening tool 51 such as a screw inserted into a long hole 50 formed in the substrate portion 49A. Therefore, the mounting position of the second processing device 38 on the base member 44 can be adjusted in the thickness direction of the shutter curtain 1 by the length of the long hole 50.

  In addition, the structure which can adjust the arrangement position of the 1st processing apparatus 37 and the 2nd processing apparatus 38 in the lintel 16 to the thickness direction of the shutter curtain 1 is not limited to the system of the long holes 47 and 50, for example, Further, a screw feeding method using rotation of a screw shaft member such as a bolt, or a slide-and-stop method in which a plurality of stop members are arranged in the middle of the guide groove may be used.

  The case 55 of the mechanical coupling device 39 shown in FIG. 4 has a back surface portion 55A and an upper surface portion 55B shown in FIG. 4, and a front surface portion 55C shown in FIG. That is, in FIG. 4 and FIG. 5, the front and back of the mechanical coupling device 39 are reversed. FIG. 6 is a front sectional view of FIG. 5 showing the structure of the mechanical coupling device 39 housed in the case 55. As shown in FIG. 4, the upper surface portion 55B of the case 55 is formed with two holes 56 and 57 through which the locking wire 36 enters and exits. As shown in FIG. Two rotatable rollers 58 and 59 for guiding the lock wire 36 are arranged in the interior of the 55 so as to be separated from each other in the width direction of the shutter curtain 1, and together with these rollers 58 and 59, the lock wire 36. A plurality of guide members 60 such as pins for guiding them are also arranged.

  Further, in the case 55, a first lever member 61 serving as a sandwiching member for sandwiching a portion (a folded portion described later) 36A between the rollers 58 and 59 of the lock wire 36 from above and below. The second lever member 62 is disposed, and these lever members 61 and 62 are swingable up and down around the same fulcrum shaft 63. A downward pressing force by a torsion coil spring 64 is acting on the upper first lever member 61, and the first lever member 61 is provided with a convex portion 61A that is curved downward. When the portion 61A hits the portion 36A of the locking wire 36, the downward swing limit of the first lever member 61 around the fulcrum shaft 63 is defined. Further, in order to prevent the first lever member 61 from largely swinging downward about the fulcrum shaft 63 when the portion 36A is relaxed, the case 55 includes a first lever member. A stop member 65 is fixed by a pin or the like for receiving the end of 61 opposite to the fulcrum shaft 63 side.

  A weight member 66 is attached to an end of the lower second lever member 62 opposite to the fulcrum shaft 63 side. Due to the weight of the weight member 66, the fulcrum shaft 63 is attached to the second lever member 62. A downward swinging force is acting around the center. Further, the second lever member 62 is provided with a convex portion 62A that is curved upward.

  Further, friction members 67 and 68 are provided on the lower surface of the upper first lever member 61 and the upper surface of the lower second lever member 62, in other words, on the surfaces of the lever members 61 and 62 facing each other. It is attached. When the first lever member 61 and the second lever member 62 pinch and lock the portion 36A of the lock wire 36, the friction members 67 and 68 generate a friction force between the portion 36A and the friction member 67 and 68. It is intended to increase the size and secure the lock. The upper first lever member 61 is formed with a downward projecting piece portion 61B. The projecting piece portion 61B and the back surface portion 55A of the case 55 provide two portions 36A for the locking wire 36. It is prevented that the lever members 61 and 62 are disengaged from each other. Further, the convex portion 62A of the second lever member 62 has the friction members 67 and 68 sandwiching the portion 36A of the locking wire 36 by the second lever member 62 swinging upward about the fulcrum shaft 63. Immediately before the attachment and locking, the portion 36A is pushed upward, whereby the portion 36A by the friction members 67 and 68 is clamped and the locking can be performed more reliably. Further, the lower second lever member 62 is provided with a convex portion 62B that is curved downward.

  FIG. 7 shows a front view when the mechanical coupling device 39 is attached to the shutter curtain 1. FIG. 8 is a cross-sectional view taken along line S8-S8 of FIG. 7. FIG. 8 shows the internal structure of the seat plate 1B of the shutter curtain 1 described above, and FIG. The mechanical coupling device 39 is indicated by a two-dot chain line. As described with reference to FIG. 1, the shutter curtain 1 occupies most of the area of the shutter curtain 1, and is as shown in FIG. And a seat plate 1B provided at the lower end of the curtain body 1A and serving as an end member in the present embodiment. The seat plate 1B is fixed to the lower portion of the curtain body 1A, and a movable portion 70B is disposed below the fixed portion 70A and is movable in the vertical direction with respect to the fixed portion 70A. It consists of.

  Further, as shown in FIG. 7, the shutter curtain 1 of the present embodiment includes a curtain main portion 71A and a curtain sub-portion 71B. The curtain main portion 71A includes a curtain main body 1A and a seat plate 1B. The curtain sub-part 71B is constituted by the 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.

  As shown in FIG. 8, the fixing portion 70 </ b> A of the seat plate 1 </ b> B is formed by inner and outer members 75 and 76 each having a box shape in cross section, and the outer member 75 is divided in the thickness direction of the shutter curtain 1. The two divided members 75A and 75B are arranged, and these divided members 75A and 75B are coupled to the lower end portion of the curtain body 1A by a coupling tool 77 such as a bolt or a nut. Further, the lower surfaces of the inner and outer members 75 and 76 have an opening 78, and the upper end of the rising portion 79 of the movable portion 70B of the seat plate 1B is inserted into the internal space of the fixed portion 70A from the opening 78. 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 fixed 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. 10, the swinging member 81 is moved when the movable part 70B is lifted with respect to the fixed part 70A, that is, when the shutter curtain 1 in the closed movement is in contact with the obstacle 34 shown in FIG. When in contact, the extending portion 79A of the rising portion 79 of the movable portion 70B pushes up the protruding piece 81A of the swinging member 81, so that the swinging member 81 swings upward about the fulcrum shaft 80. Further, the fixed portion 70A and the movable portion 70B constituting the seat plate 1B have a length that extends to the left and right guide rails 6 shown in FIG. It has an extended length.

  The swing member 81 and the movable portion 70B are formed of an extrusion molded product or a pultruded molded product made of, for example, an aluminum alloy. When the lateral width of the entrance / exit 2 shown in FIG. 1 is large, it is difficult to form the swinging member 81 and the movable portion 70B with a single continuous extruded product or pultruded product. The swing member 81 and the movable portion 70B are formed by a plurality of extrusion molded products or pultruded molded products arranged in the length direction (width direction of the shutter curtain 1).

  As shown in FIG. 7, the mechanical coupling device 39 described in FIG. 4 is incorporated in the fixing portion 70 </ b> A of the seat plate 1 </ b> B. That is, the mechanical coupling device 39 is disposed on the fixed portion 70A among the curtain main body 1A constituting the curtain main portion 71A described above of the shutter curtain 1 and the fixed portion 70A of the seat plate 1B. FIG. 9 is a cross-sectional view taken along line S9-S9 of FIG. 7, and is a cross-sectional view of the seat plate 1B at a portion where the mechanical coupling device 39 is disposed. As shown in FIG. 9, the upper and front portions of the inner and outer members 75 and 76 forming the fixing portion 70 </ b> A of the seat plate 1 </ b> B have positions corresponding to the arrangement position of the mechanical coupling device 39. , An opening 90 is formed by notching, and a mechanical coupling device 39 is inserted into the opening 90 from above and coupled to the fixing portion 70A.

  The protruding piece 81A of the swinging member 81 that is swingable in the vertical direction around the fulcrum shaft 80 has a position corresponding to the downward projecting portion 62B of the lower second lever member 62 shown in FIG. The pressing member 91 is attached. For this reason, during the closing movement of the shutter curtain 1, the movable portion 70B of the seat plate 1B comes into contact with the obstacle 34 that exists on the lower side in the closing movement direction, and as described with reference to FIG. When the extending part 79A of the movable part 70B swings the swinging member 81 upward about the fulcrum shaft 80, as shown in FIG. 11, the pressing member 91 presses the convex part 62B. The second lever member 62 swings upward about the fulcrum shaft 63. Accordingly, the friction member 68 attached to the second lever member 62 pushes up the portion 36A between the roller 58 and the roller 59 of the locking wire 36 upward.

  By this push-up, the upper first lever member 61 swings upward about the fulcrum shaft 63 via the friction member 67 attached to the first lever member 61, and this upward swing As a result, the torsion coil spring 64 is compressed, so that the portion 36A between the roller 58 and the roller 59 of the lock wire 36 is clamped with a large load from above and below by the friction members 67 and 68 of the two lever members 61 and 62. By this clamping, the portion 36A of the lock wire 36 is locked, and by this lock, the shutter curtain 1 and the lock wire 36 are mechanically coupled by the mechanical coupling device 39. Become.

  As shown in FIG. 9, when the movable portion 70B of the seat plate 1B reaches the lowest position with respect to the fixed portion 70A, the protruding piece 81A of the swinging member 81 extends from the movable portion 70B. By hitting the portion 79A, the downward swing of the swing member 81 about the fulcrum shaft 80 is restricted.

  As described above, the operation for attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B is performed by using the shutter curtain 1 of the shutter device according to the present embodiment and the building where the shutter device according to the present embodiment is installed. This is performed after the guide rail 6 attached to the left and right building frames 3 shown in FIG. That is, the installation work of the shutter device itself excluding the mechanical obstacle detection device 35 described above with reference to FIG. 4 is performed first, and then the installation work of the mechanical obstacle detection device 35 is performed. The installation work of the mechanical obstacle detection device 35 includes the work of attaching the unit structure 45 to the lintel 16 and the work of attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B. Of the work of attaching the unit structure 45 to the lintel 16 and the work of attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B, either work may be performed first, and these work are performed simultaneously ( Including the case of being said to be substantially simultaneous).

  When performing the installation work of the mechanical obstacle detection device 35 in this way, the opening 90 and the like for arranging and attaching the mechanical coupling device 39 to the fixing portion 70A of the seat plate 1B are previously installed. It is preferable to form in a factory.

  In the present embodiment, as described above, the mechanical obstacle detection device 35 including the lock wire 36, the first processing device 37, the second processing device 38, and the mechanical coupling device 39 is unitized. Therefore, the installation work for the mechanical obstacle detection device 35 transported from the factory to the building where the shutter device according to the present embodiment is installed can be easily performed, and the first processing device 37 and Since the second processing device 38 is a unit structure 45 and only the first processing device 37 and the second processing device 38 are unitized, the first processing device 37 and the second processing device 38 are sprinkled. The attachment work to the length 16 can be easily performed.

  As described above, when the mechanical coupling device 39 is attached to the fixing portion 70A of the seat plate 1B, the first processing device 37 and the second processing device 38 of FIG. 4 installed in the above-described lintel 16 which is a stationary member. The locking wire 36 whose both ends are coupled to each other is bridged between the lintel 16 and the shutter curtain 1. Further, since the lock wire 36 is folded back by the mechanical coupling device 39, as shown in FIG. 1, the first portion 36B extending from the lintel 16 to the shutter curtain 1, and the shutter curtain 1 The second portion 36 </ b> C extends from the lintel 16 to the lintel 16. Of the locking wire 36, the portion 36 </ b> A shown in FIGS. 6 and 11 corresponding to the mechanical coupling device 39 becomes a folded portion of the U-shaped locking wire 36.

  When the shutter curtain 1 is closed and moved by its own weight, the lock wire 36 is rotated from the reel 40 by rotating the reel 40 of the first processing device 37 due to the weight of the shutter curtain 1. The lengths of the first portion 36B and the second portion 36C are increased. Further, when the shutter curtain 1 is opened and moved upward by the rotation of the drive shaft 14 of the opening / closing device 13 described above, the locking wire 36 is slackened. Therefore, the return force of the return spring 41 described above is opposite to the above. The locking wire 36 is taken up by the reel 40 that rotates in the direction, whereby the length of each of the first portion 36B and the second portion 36C is shortened. For this reason, the locking wire 36 follows the opening / closing movement of the shutter curtain 1.

  In this embodiment, as can be seen from FIG. 1, the unit structure 45 including the mechanical coupling device 39 and the first processing device 37 and the second processing device 38 is disposed at the central position B in the width direction of the shutter curtain 1. The mechanical coupling device 39 and the unit structure 45 constituting the mechanical obstacle detection device 35 are not moved from the central position B to one side in the width direction of the shutter curtain 1. It is placed at a displaced position. This displaced position is a position on the side where the above-described opening / closing device 13 serving as a driving device for driving the shutter curtain 1 is disposed.

  Further, as shown in FIG. 1, the extending direction of the first portion 36B and the second portion 36C of the locking wire 36 is a vertical direction (substantially a vertical direction) along the curtain body 1A of the shutter curtain 1. The first portion 36B and the second portion 36C are parallel to each other (including what can be said to be substantially parallel to each other).

  As shown in FIGS. 2 and 4, the first portion 36 </ b> B and the second portion 36 </ b> C of the lock wire 36 are disposed at the inner position of the slit 17 for hanging the shutter curtain in the lintel 16. For this reason, the first portion 36 </ b> B and the second portion 36 </ b> C do not interfere with the lintel 16. In other words, in the first processing device 37 and the second processing device 38 arranged on the upper surface of the lintel 16, the position of the portion where the first portion 36 </ b> B and the second portion 36 </ b> C of the locking wire 36 hang down is the lintel 16. Is arranged on the lintel 16 so as to be positioned above the internal position of the slit 17 for hanging the shutter curtain.

  Furthermore, as shown in FIG. 9, the mechanical coupling device 39 in the fixing portion 70 </ b> A of the seat plate 1 </ b> B is disposed not at the central position in the thickness direction of the shutter curtain 1 but from the central position to the thickness of the shutter curtain 1. The position is displaced to one side in the vertical direction. For this reason, the lock wire 36 does not interfere with the curtain body 1A described above in the shutter curtain 1 for both the first portion 36B and the second portion 36C as shown in FIG. In other words, in the first processing device 37 and the second processing device 38 arranged on the upper surface of the lintel 16, the position of the portion where the first portion 36 </ b> B and the second portion 36 </ b> C of the locking wire 36 hang down is the lintel 16. Is arranged on the lintel 16 so as to be positioned above the internal position of the slit 17 for hanging the shutter curtain.

  A portion of the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed is a curtain main body 1A, and the curtain main body 1A is a large portion that occupies most of the area of the shutter curtain 1. For this reason, as described above, both the first portion 36B and the second portion 36C of the locking wire 36 are separated from the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed. Since it is arranged at a position away from the thickness direction and does not interfere with the curtain main part 71A, it is a bridge member that is bridged between the lintel 16 and the shutter curtain 1, and this embodiment The locking wire 36 that is a mechanical member in the embodiment does not hinder the opening / closing movement of the shutter curtain 1.

  Further, as described above, the movable portion 70B of the seat plate 1B forms the curtain sub-portion 71B. As shown in FIG. 8, the thickness direction dimension of the shutter curtain 1 with respect to the movable portion 70B. Is W1. The dimension in the thickness direction of the shutter curtain 1 for the fixing portion 70A of the seat plate 1B that constitutes a part of the curtain main portion 71A described above is W2, and this W2 is smaller than W1. The lock wire 36 is disposed within the range of W1 and within the range of W2. Since the movable portion 70B forms the curtain sub portion 71B, the lock wire 36 is disposed within the shutter curtain thickness direction dimension W1 of the curtain sub portion 71B, and W1. Is a dimension that defines the overall thickness dimension of the shutter curtain 1, so that the locking wire 36 is disposed within the entire thickness dimension of the shutter curtain 1.

  Therefore, the lock wire 36 is disposed along the curtain body 1A of the shutter curtain 1, and thereby the first portion 36B and the second portion 36C of the lock wire 36 are disposed at positions that do not interfere with the curtain body 1A. Moreover, it can suppress that the whole thickness dimension of the shutter curtain 1 containing this wire 36 for a lock | rock becomes large.

  Even when W1 is equal to W2 (including a case where there is some difference and it can be said that it is substantially equal), the entire thickness of the shutter curtain 1 including the lock wire 36 is also included. An increase in the size can be suppressed.

  In the present embodiment, as described with reference to FIG. 4, the arrangement positions of the first processing device 37 and the second processing device 38 in the lintel 16 are adjusted in the thickness direction of the shutter curtain 1 by the long holes 47 and 50. Therefore, both the first portion 36B and the second portion 36C of the locking wire 36 are removed from the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed. It can arrange | position more reliably in the position away in the vertical direction. Also. By adjusting the arrangement positions of the first processing device 37 and the second processing device 38 in the lintel 16 separately for the first processing device 37 and the second processing device 38, the first portion 36B and the second portion 36C. Can also be performed for separating the curtain main portion 71A excluding the fixing portion 70A where the mechanical coupling device 39 is disposed in the thickness direction of the shutter curtain 1 by the same distance.

  FIG. 12 shows the internal structure of the second processing device 38. As described above, the second processing device 38 is provided with the rotating member 42 to which the other end of the locking wire 36 is coupled. The turning direction of the turning member 42 is a vertical direction centering on a horizontal central axis 42A. A return spring 100 such as a mainspring spring is disposed behind the rotating member 42. The return force of the return spring 100 is such that the rotation member 42 is rotated in the direction C, that is, the rotation member 42 is rotated in the direction in which the second portion 36C of the lock wire 36 is pulled up. It acts on the moving member 42.

  In addition, as shown in FIG. 12, a micro switch 170 is fixedly arranged on the upper part of the machine casing 49 of the second processing device 38. The microswitch 170 is provided with an actuating member (actuator) 171 that is biased in a direction protruding from the microswitch 170 by a spring. The microswitch 170 is a second process disposed in the lintel 16. The operating member 171 is fixedly disposed on the machine casing 49 of the device 38 so as to protrude downward. The lead wire 172 of the micro switch 170 is connected to the control device 27 and control circuits 200 and 300 described later. On the other hand, a dog member 173 is attached to the outer peripheral surface 42 </ b> D of the rotating member 42.

  The operating member 171 of the micro switch 170 is in contact with the outer peripheral surface 42 </ b> D of the rotating member 42 as long as the shutter curtain 1 that is being closed is not in contact with an obstacle. On the other hand, the shutter curtain 1 in the closed movement comes into contact with the obstacle, and the operation member 171 comes into contact with the dog member 173 by the rotation of the rotation member 42 in the D direction by the operation of the mechanical coupling device 39. It has become.

  For this reason, in the present embodiment, the micro switch 170 serves as a tension generation detection unit that detects, via the rotating member 42, that the tension is applied to the locking wire 36 by the operation of the mechanical coupling device 39. The locking wire 36 is a tension acting member. In this embodiment, the mechanical obstacle detection device 35 and the micro switch 170 cause the seat plate 1B of the shutter curtain 1 to contact the obstacle 34 shown in FIG. 1 during the closing movement of the shutter curtain 1. The electric obstacle detecting device is an electric obstacle detecting means for detecting the obstacle 34 electrically.

  Further, in this embodiment, the micro switch 170 rotates that the tension force acting on the locking wire 36 disappears due to the mechanical coupling device 39 not working when the obstacle 34 is removed. It is also a tension extinction detecting means for detecting via the member 42, in other words, an obstacle removal detecting means.

  As described above, the mechanical coupling device 39 has a longer shutter shutter 1 than the micro switch 170 until the shutter curtain 1 reaches the fully closed position from the state in which the shutter curtain 1 reaches the fully open position (in other words, always). It is located on the closing movement direction side, that is, on the lower side.

  As shown in FIG. 2, the microswitch 170 is based on the central position in the thickness direction (front-rear direction) of the shutter curtain 1 fed out from the winding shaft 11, that is, on the winding shaft 11 side from this central position. Is disposed on the control device 27 side. That is, the micro switch 170 is disposed on the same side as the control device 27 with respect to the center position in the thickness direction of the shutter curtain 1. For this reason, maintenance work such as repair and replacement of the microswitch 170 and the control device 27 is facilitated.

  FIG. 13 is a front view showing the internal structure of the automatic closing device 32 shown in FIGS. 1 to 3, and FIG. 14 is a plan view showing the internal structure of the automatic closing device 32. In an emergency, the automatic closing device 32 automatically controls the shutter 13 shown in FIGS. 1 to 3 mechanically or electrically to automatically release the shutter curtain 1 that has reached the fully opened position. It is for closing and moving to make it fully closed, and to close the entrance / exit 2 of FIG. 1 by the shutter curtain 1 having smoke resistance and / or fire resistance. The automatic closing device 32 is attached to the opening / closing machine 13 by a bracket part 110A of FIG. 13 provided in the machine casing 110 of the automatic closing device 32. As shown in FIG. 14, each of the first control wire 111, the second control wire 112, and the third control wire 113 for controlling the automatic closing device 32 up to the automatic closing device 32. The end of is extended. These control wires 111 to 113 are flexible string-like members, and are also elongated members, like the aforementioned locking wires 36.

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

  As shown in FIG. 12, the first control wire 111 extends to the second processing device 38, and the other end of the first control wire 111 is a rotating member of the second processing device 38. 42. As shown in FIG. 2, the first processing wire 111 and the outer cable 114 into which the first control wire 111 is inserted are part of the second processing device 38. The above-described unit structure 45 and the switch 13 are wired in the ceiling space 7 where they are arranged, and avoid the object 117 existing in the ceiling space 7, in other words, bypass the object 117. The first control wire 111 and the outer cable 114 are wired in a space where wiring is possible. Note that this space may exist in advance, and when the first control wire 111 and the outer cable 114 are wired, a part of the object 117 is cut out or a hole is provided in the object 117. Or formed.

  Thus, it is possible to wire the first control wire 111 and the outer cable 114 without interfering with the object 117 because the first control wire 111 and the outer cable 114 have flexibility. is there. The object 117 may be related to the building itself in which the shutter device of the present embodiment is installed, or may be related to a part of the shutter device of the present embodiment, for example, the shutter box 8 described above.

  Further, as shown in FIG. 12, the first control wire 111 and the outer cable 114 are inclined with respect to the second processing device 38 in the vicinity of the second processing device 38. Thus, the first control wire 111 and the outer cable 114 do not interfere with the coupling member 26 that couples the lintel 16A of the lintel 16 illustrated in FIG. Yes.

  As shown in FIG. 13 and FIG. 14, the machine casing 110 of the automatic closing device 32 is provided with two rising portions 110B and 110C facing each other, and formed on these rising portions 110B and 110C. A plate-like slide member 120 having a length straddling the two rising portions 110B and 110C is slidably inserted into the holes 110D and 110E. A spring 121 is wound around the outer periphery of the slide member 120. Due to the spring force of the spring 121, a forward force toward the rising portion 110B is constantly acting on the slide member 120. The direction of the forward force is a direction in which the first portion 31A of the lever member 31 provided in the opening / closing machine 13 described in FIG.

  As shown in FIGS. 3 and 13, an operating member 122 is attached to a bent portion 120 </ b> A that is bent downward at the front end of the slide member 120, and the first portion of the lever member 31 is also provided. An actuated member 123 is erected and coupled to 31A. When the slide member 120 moves forward by the spring force of the spring 121, the load in the direction A shown in FIG. 3 is applied to the first portion 31A of the lever member 31 by the operating member 122 coming into contact with the operated member 123. It comes to work. As shown in FIG. 13, in this embodiment, the actuating member 122 is the head 124 </ b> A of the bolt 124. Therefore, the head 124 </ b> A is rotated to turn the bolt 124 into the bent portion of the slide member 120. By moving forward and backward with respect to 120A, the distance between the actuating member 122 and the actuated member 123 can be adjusted to an appropriate dimension. After this adjustment, the lock nut 125 screwed into the bolt 124 is rotated, and the lock nut 125 is pressed against the bent portion 120A, whereby the position of the operating member 122 relative to the operated member 123 is adjusted. It can be fixed in an appropriate position.

  As shown in FIG. 14, a solenoid 126 is attached to the machine casing 110 of the automatic closing device 32, and a spring force of a spring 128 is applied to the plunger 127 of the solenoid 126 from the solenoid 126. It always works in the protruding direction. One end of an L-shaped bent lever member 129 that is rotatable about a central axis 129A is connected to the tip of the plunger 127 by a slide-type connecting portion 129B. A roller 130 is rotatably provided at the other end of the bent lever member 129.

  A concave portion 120 </ b> B is formed in the portion of the slide member 120 that faces the roller 130. A portion of the recess 120B on the backward side of the slide member 120 is an inclined surface 120C. In the automatic closing device 32, the spring 131 for applying a turning force in the G direction about the central axis 129A to the bending lever member 129 and the direction in which the plunger 127 protrudes from the solenoid 126 together with the spring 128 described above. And a spring 132 for rotating the bending lever member 129 in the G direction about the central axis 129A. The roller 130, 131, 132 is provided with a spring force so that the roller 130 in a normal state is provided. As shown in FIG. 14, the slide member 120 is fitted into the recess 120 </ b> B, and the advancement of the slide member 120 by the spring 121 is stopped by this fitting. Thus, the position of the front end of the slide member 120 when the forward movement is stopped by the roller 130 fitted in the recess 120B is the H position of the two positions H and I shown in FIG.

  As shown in FIG. 14, a micro switch 135 is arranged in the automatic closing device 32, and an operating member (actuator) biased in a direction protruding from the micro switch 135 by a spring is provided in the micro switch 135. 136 is provided. In addition, a dog member 137 is attached to the slide member 120 at a portion opposite to the concave portion 120 </ b> B, and the operating member 136 is in contact with the dog member 137. Although not shown in FIG. 14, the lead wire of the microswitch 135 is connected to the control device 27 and control circuits 200 and 300 described later.

  A connecting member 138 provided with a first connecting portion 138A and a second connecting portion 138B is connected to the slide member 120, and a connecting member 140 is connected to the tip of the plunger 127 of the solenoid 126, as described above. One end of the spring 132 is connected to the connecting member 140. One end of the first control wire 111, whose other end is connected to the rotating member 42 of the second processing device 38 shown in FIG. 4, is the first of the connecting member 138 of the slide member 120. The end portion of the second control wire 112 is connected to the connecting portion 138A, the end portion of the third control wire 113 is connected to the connecting member 140 connected to the plunger 127, and the end portion of the connecting member 138 of the slide member 120 is connected. It is connected to the second connecting part 138B.

  The second control wire 112 inserted into the outer cable 115 extends to the manual closing device 184 disposed adjacent to the operating device 30 shown in FIG. 1 and protrudes from the outer cable 115. A manual operation member (not shown) such as a lever member of the manual closing device 184 is connected to the end of the second control wire 112. By operating this manual operation member, the second control wire 112 can be pulled.

  The third control wire 113 inserted into the outer cable 116 extends from the above-described ceiling space 7 in which the automatic closing device 32 is disposed, and is a manual return device disposed adjacent to the operation device 30. 186 (see FIG. 1). As will be described later, the manual return device 186 is for returning the automatic closing device 32 to an initial state before a disaster such as a fire occurs. The manual return device 186 is connected to the end of the third control wire 113 on the side of the automatic closing device 32 that is not connected to a slide member 120 described later. A winding shaft (not shown) on which 113 is wound and fed, and an electric motor device (not shown) which is a driving device for generating a driving force for rotating the winding shaft to wind up the third control wire 113; And a power transmission means (not shown) for transmitting the driving force generated by the electric motor device to the take-up shaft. The electric motor device of the manual return device 186 is operated by pressing a “return” button (not shown) disposed adjacent to the operation button of the operation device 30.

  In addition, as shown in FIG. 1, there is another third control wire 113, and this third control wire 113 is from the above-described ceiling space 7 in which the automatic closing device 32 is disposed, It extends to a position where it can be manually operated in the building. In this embodiment, as shown in FIG. 1, this position is an upper position of the entrance / exit 2 that has passed through the slit 17 of the lintel 16 from the ceiling space 7 and protrudes from the outer cable 116. A manual operation member 141 capable of manually pulling the third control wire 113 is coupled to the end of the third control wire 113, and this manual operation member 141 is a ring member in this embodiment. ing. Therefore, the third control wire 113 and the manual operation member 141 constitute a manual return device (not shown) for manually returning the automatic closing device 32 to the initial state.

  In a 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 fully open, smoke is a sensor that senses smoke (heat) generated by this disaster A disaster prevention signal (DC24V) is input from the (heat) sensor 180 (see FIG. 1) to the disaster prevention interlock control device 181. The disaster prevention interlock control device 181 continuously inputs the disaster prevention signal to the automatic closing device 32, and the disaster prevention signal energizes the solenoid 126 of the automatic closing device 32. As a result, the solenoid 126 is excited, and the plunger 127 of the solenoid 126 moves backward against the spring force of the spring 128. As a result, the bending lever member 129 rotates against the spring force of the springs 131 and 132 about the central axis 129A in the direction opposite to the G direction in FIG. The state at this time is shown in FIG. When the bending lever member 129 rotates about the central axis 129 </ b> A in the direction opposite to the G direction, the roller 130 of the bending lever member 129 escapes from the recess 120 </ b> B of the sliding member 120. The forward movement is stopped when the front end of the connecting member 138 comes into contact with the above-described rising portion 110B of the machine casing 110 of the automatic closing device 32. The position of the front end of the slide member 120 at this time is the I position which is the foremost position, as shown in FIG. 15, of the two positions H and I shown in FIG.

  Further, when the slide member 120 moves forward, the operation member 136 of the micro switch 135 is disengaged from the position of the dog member 137 attached to the slide member 120, so that the operation member 136 projects and moves by the biasing force of the spring. Thereby, the contact of the micro switch 135 is switched from on to off, and the energization of the solenoid 126 is stopped. When the contact of the micro switch 135 is switched, a closing confirmation signal for confirming that the shutter curtain 1 has started closing and moving is transmitted from the disaster prevention interlock control device 181 of the control circuit 200 described later to the outside. Is done.

  The micro switch 135 and the above-described micro switch 170 are connected to a control circuit 200 (see FIG. 18) described later. Further, the contact point of the micro switch 135 is connected to the control circuit 200 side (closed) and the control line (closed operation confirmation line) 220 side having a terminal c for confirming that the shutter curtain 1 has started closing and moving. The connection to (closed) is switched.

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

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

  Further, when a human discovers (senses) that a disaster such as a fire has occurred, this human is provided in the manual closing device 184 disposed adjacent to the operating device 30 shown in FIG. The second control wire 112 is pulled by a manual operation member (not shown) such as a lever member connected to the end of the second control wire 112. As a result, the plunger 127 of the solenoid 126 moves backward, so that even before the solenoid 126 is energized and excited, the bending lever member 129 is centered on the central axis 129A even when the solenoid 126 is energized and excited. 14, the roller 130 of the bending lever member 129 escapes from the recess 120B of the slide member 120, and the slide member 120 moves forward by the spring force of the spring 121.

  Therefore, according to the present embodiment, even in the manual operation using the second control wire 112, the brake device 19 of the switch 13 is turned off and the shutter curtain 1 that has been fully opened is closed and moved to be fully closed. be able to.

  In the present embodiment, as shown in FIG. 1, the manual closing device 184 is located near the switch 13 and the automatic closing device 32 in the building housing 3 such as the left and right walls. Therefore, the length of the second control wire 112 spanned between the automatic closing device 32 and the manual closing device 184 can be shortened. For this reason, the pulling force when the second control wire 112 is pulled by the manual operation member such as the lever member described above is applied to the automatic closing device 32 as compared with the case where the manual closing device 184 is disposed in the other building housing 3. Input can be made instantaneously, whereby the closing movement of the shutter curtain 1 can be started quickly.

  As described above, in the present embodiment, the manual closing device 184 for manually closing and moving the shutter curtain 1 that has been fully opened to fully close the shutter curtain 1 is provided, and the manual closing device 184 includes the second control. A wire 126, a solenoid 126 connected to one end of the second control wire 112, and a manual operation member (not shown) such as a lever member connected to the other end of the second control wire 112. It is composed of.

  In addition, as described above, a disaster prevention signal is input from the smoke (heat) sensor 180 that detects smoke (heat) generated by a disaster such as a fire to the disaster prevention interlock control device 181, and the disaster prevention interlock control device 181 The solenoid 126 of the automatic closing device 32 is energized and excited by the above disaster prevention signal, or the second control wire is operated by operating the manual operation member of the manual closing device 184 connected to the end of the second control wire 112. When the 112 is pulled and thereby the brake device 19 of the switch 13 is turned off and the shutter curtain 1 is closed and moved downward from the fully open position, in other words, the automatic closing device 32 is shown in FIG. When the obstacle 34 shown in FIG. 1 exists under the shutter curtain 1 in the closing movement direction when the state shown in FIG. In the middle of the closing movement of the curtain curtain 1, the curtain sub-portion 71 </ b> B arranged at the distal end portion of the shutter curtain 1 forms the lower part of the seat plate 1 </ b> B of the shutter curtain 1. The aforementioned movable part 70B comes into contact with the obstacle 34, and the lowering of this movable part 70B stops.

  Even if the lowering of the movable part 70B is stopped, the curtain main part 71A composed of the curtain main body 1A and the fixed part 70A of the seat plate 1B is lowered. As described with reference to FIG. 11 and the like, the first lever member 61 and the second lever member 62 of the mechanical coupling device 39 described above are in friction members 67 and 68 by the relative rise of the curtain sub-portion 71B with respect to the portion 71A. The above-described folded portion 36A of the locking wire 36 is clamped, and the locking wire 36 is locked by this clamping. As a result, the shutter curtain 1 and the locking wire 36 are mechanically coupled by the mechanical coupling device 39.

  Until then, the locking wire 36 is fed from the reel 40 of the first processing device 37 following the closing movement of the shutter curtain 1, and the folded portion 36 </ b> A of the locking wire 36 is formed by the friction members 67 and 68. When the locking wire 36 is clamped and locked, the first portion 36B and the second portion 36C of the locking wire 36 that are folded back by the folded portion 36A based on the dent deformation of the obstacle 34 Since the weight of the portion of the shutter curtain 1 above the curtain sub-portion 71B, that is, the weight of the curtain main portion 71A acts on the lock wire 36, particularly, the second portion 36C has a large tension. Works.

  Then, as shown in FIG. 11, the folded portion 36A of the lock wire 36 is sandwiched between friction members 67 and 68 having a large frictional force provided on the first lever member 61 and the second lever member 62. Because the friction members 67 and 68 are locked, the locking wire 36 can be prevented from sliding relative to the first lever member 61 and the second lever member 62. Further, in the present embodiment, the above-described shaft 63 serving as the pivot center axis of the first lever member 61 and the second lever member 62 is shared by the first lever member 61 and the second lever member 62. Therefore, the structure of the mechanical coupling device 39 can be simplified by reducing the number of members, and the positional relationship between the friction members 67 and 68 can be set appropriately. For this reason, the folded portion 36A of the lock wire 36 is provided. Can be clamped and locked more reliably by the friction members 67 and 68.

  Further, the contact of the shutter curtain 1 with the obstacle 34 is not performed below the position where the mechanical coupling device 39 is disposed, and the shutter curtain 1 is viewed from below the position where the mechanical coupling device 39 is disposed. Therefore, when the portion of the shutter curtain 1 where the mechanical coupling device 39 is arranged is about to move slightly in the closing direction of the shutter curtain 1, the first processing device 37 is used. The locking wire 36 fed out from the reel 40 tries to move so that the portion clamped by the friction members 67 and 68 moves from the first portion 36B side to the second portion 36C side. Since the distance between the friction members 67 and 68 is gradually reduced in the direction opposite to the moving direction, the locking wire 36 is connected to the first lever member 61 and the second lever member 62. Can be more effectively prevented from sliding move.

  Further, in the present embodiment, when the folded portion 36A of the locking wire 36 is sandwiched and locked by the friction members 67 and 68, as shown in FIG. One guide member 60A of the guide members 60 and the second lever member 62 form a bypass portion 36F that is not linear. For this reason, even if the obstacle 34 is a hard object that does not dent deform or hardly dent deforms, the second portion 36C of the locking wire 36 is pulled by forming the detour portion 36F in the locking wire 36. As a result, a large tension can be applied to the second portion 36C.

  As described above, the sliding movement of the locking wire 36 relative to the first lever member 61 and the second lever member 62 is prevented by the friction members 67 and 68, and the second portion 36 </ b> C of the locking wire 36 is prevented. When a large tension is applied, the rotating member 42 of the second processing device 38 shown in FIG. 12 is rotated in the direction D in FIG. 12 against the return spring 100 described above by this tension. For this reason, the first control wire 111 having one end connected to the rotating member 42 is pulled.

  From the above, the locking wire 36 is a tension force acting member to which a tension force based on the abutment acts when the shutter curtain 1 abuts against the obstacle 34 during the closing movement.

  The second portion 36C of the locking wire 36 is not directly connected to the rotating member 42, and a coil spring serving as an impact load buffering elastic member is interposed between the second portion 36C and the rotating member 42. It may be provided. According to this, even if the above-described large tension force momentarily acts on the second portion 36C, this tension force does not directly act on the rotating member 42, and the tension force is relaxed to the rotating member 42. Can act.

  When the first control wire 111 is pulled as described above, the other end of the first control wire 111 is connected to the slide member 120 shown in FIG. Then, while resisting the spring 121, the front end is retracted to the retreat limit where the position becomes the H position in FIG. That is, in this embodiment, the amount by which the first control wire 111 is pulled and the amount by which the slide member 120 is retracted correspond to the distance from the I position shown in FIG. 14 to the H position that is the initial position. Yes.

  Further, when the slide member 120 returns to the H position, the bending lever member 129 rotates in the direction G in FIG. 14 by the spring force of the springs 131 and 132 about the central axis 129A. 14, 130 is fitted into the recess 120B of the slide member 120, and the slide member 120 stops when the front end of the slide member 120 reaches the H position.

  Thereby, the automatic closing device 32 returns to the initial state before the occurrence of a disaster such as a fire. Accordingly, the load that the first portion 31A of the lever member 31 of FIGS. 3 and 13 is pressed in the direction A of FIG. 3 by the operating member 122 of the slide member 120 is released. For this reason, the brake device 19 of the switch 13 is switched from off to on. When the brake device 19 is turned on, the drive shaft 14 of the opening / closing machine 13 cannot be rotated, so that the winding shaft 11 to which the upper end of the shutter curtain 1 is coupled cannot be rotated.

  Therefore, the shutter curtain 1 that is in contact with the obstacle 34 closes and stops moving at the contact position. This stop can be achieved by the mechanical coupling device 39 provided with the first lever member 61 and the second lever member 62 for locking the locking wire 36 with the friction members 67 and 68, or the second processing which is also mechanical. This is performed by a mechanical structure including the device 38, the slide member 120 which is a member of the automatic closing device 32 which slides mechanically, the brake device 19 of the switch 13 which is mechanically turned on, and the like.

  As described above, the shutter device according to the present embodiment includes the locking wire 36, the first processing device 37, the second processing device 38, and the mechanical coupling device 39. A shutter curtain stop device, which is a device, is provided.

  For this reason, after the shutter curtain 1 is closed and started moving, the building in which the shutter device according to the present embodiment is installed is blacked out due to the occurrence of a disaster such as a fire or other reasons. In addition, the shutter curtain 1 in contact with the obstacle 34 during the closing movement can be stopped.

  In the present embodiment, as described with reference to FIG. 1, the mechanical coupling device 39 and the unit structure 45 constituting the mechanical obstacle detection device 35 described above are arranged at the center position in the width direction of the shutter curtain 1. It is not arrange | positioned at B, but is arrange | positioned from this center position B in the position displaced to the one side in which the switch 13 and the automatic closing device 32 are arrange | positioned among the width directions of the shutter curtain 1. FIG. . For this reason, the length of the first control wire 111 wired between the second processing device 38 and the automatic closing device 32 can be shortened. Therefore, when the shutter curtain 1 in the closing movement comes into contact with the obstacle 34, the aforementioned tension force acting on the first control wire 111 can be instantaneously input to the automatic closing device 32. The brake device 19 of the machine 13 can be quickly turned on.

  Note that, for example, there is not enough space for the first control wire 111 to be wired at the location because there is a large object between the unit structure 45 and the automatic closing device 32. For this reason, the unit structure When it is impossible or difficult to wire the first control wire 111 having a reduced length between the second processing device 38 of the object 45 and the automatic closing device 32, the unit structure in the lintel 16 The position where the object 45 is arranged is changed from the above position, whereby the first control wire 111 and the first control wire 111 can be routed between the second processing device 38 and the automatic closing device 32. You may make it wire by passing. As a result, the position of the unit structure 45 in the lintel 16 is changed from the central position B in the width direction of the shutter curtain 1 to the width direction of the shutter curtain 1 in which the switch 13 and the automatic closing device 32 are disposed. The position of the mechanical obstacle detection device 35 configured by the unit structure 45 or the like is shifted to a position on the opposite side of the one side, and the position B of the shutter curtain 1 in the width direction is set. On the other hand, a position opposite to the position shown in FIG. 1, in other words, a position further away from the central position B from the switch 13 and the automatic closing device 32 may be used.

  As described above, when the shutter curtain 1 that is closing and moving contacts the obstacle 34 and the brake device 19 of the switch 13 is turned on, the obstacle 34 is removed. Since 71B descends, the locking wire 36 is not clamped or locked by the friction members 67 and 68 of the first lever member 61 and the second lever member 62 of the mechanical coupling device 39, and the shutter by the mechanical coupling device 39 is released. The mechanical coupling state between the curtain 1 and the lock wire 36 is also released. As a result, the tension force of the locking wire 36 disappears. For this reason, the rotating member 42 of the second processing device 38 on which the return force by the return spring 100 of FIG. 12 is acting rotates in the direction C of FIG. Move.

  Because of this rotation, the tension force acting on the first control wire 111 whose one end is connected to the rotation member 42 also disappears, so the automatic closing device in which the other end of the first control wire 111 is connected Although the slide member 120 of 32 attempts to move forward by the spring force of the spring 121, as described above, the automatic closing device 32 is in the initial state shown in FIG. 14, and the roller 130 of the bending lever member 129 is moved. Since the slide member 120 is fitted in the recess 120B, the forward movement of the slide member 120 is stopped. That is, the slide member 120 of the automatic closing device 32 continues the initial state in which the position of the front end is the H position shown in FIG.

  However, as described above, in this embodiment, by removing the obstacle 34, the tension of the locking wire 36 disappears, and thus the return force by the return spring 100 of FIG. 12 acts. The rotation member 42 of the second processing device 38 rotates in the direction C in FIG. For this reason, as shown in FIG. 17, the contact of the micro switch 170 that is open (turned off) is closed (turned on) as shown in FIG.

  Thereby, in the shutter curtain stopping device according to the present embodiment, as will be described later, the obstacle 34 with which the closing shutter curtain 1 is in contact is removed, whereby the brake device 19 of the switch 13 is electrically Therefore, the shutter curtain 1 is switched from on to off again, and the shutter curtain 1 is closed and restarted.

  FIG. 18 shows a circuit diagram of a control circuit 200 provided in the shutter curtain stop device according to the present embodiment. As shown in FIG. 18, the control circuit 200 includes at least the above-described microswitch 135 (MS1) disposed in the automatic closing device 32 and the above-described microswitch 170 (located in the second processing device 38). MS2), a delay device 210 which is a delay device having a timer circuit 211 and a timer contact 212 (T1) which is a timer switch means, the solenoid 126 which is arranged in the automatic closing device 32, and the switch 13 A fully open (upper limit) limit switch 201 (LS1) disposed and a fully closed (lower limit) limit switch 202 (LS2) disposed in the switch 13 are connected. The micro switch 170 is connected in series with the timer circuit 211.

  The timer circuit 211 starts measuring time when a voltage is applied to a power source (not shown) connected to the timer circuit 211 and is turned on. When a preset time (for example, about 10 seconds) elapses, the timer circuit 211 212 is closed (closed). Thereafter, when no voltage is applied to the power source of the timer circuit 211 and the timer circuit 211 is turned off, the timer contact 212 is opened (opened). For this reason, the delay device 210 is an on-delay timer in which the timer contact 212 operates after a set time has elapsed since the voltage was applied to the power supply of the timer circuit 211.

  Further, the contact point of the micro switch 135 is connected to the control circuit 200 side (closed) and the control line (closed operation confirmation line) 220 side having a terminal c for confirming that the shutter curtain 1 has started closing and moving. The connection to (closed) is switched.

  The control circuit 200 shown in FIG. 18 is in a state where the shutter curtain 1 is stopped at the fully open position, and a disaster prevention signal BS due to the occurrence of a fire or the like is input between the terminals a and b, as will be described later. It is a figure which shows the circuit state (initial state) which is not made, ie, the circuit state of the normal time (normal time) when the fire etc. have not occurred.

  FIGS. 19 to 21 are flowcharts showing the flow of operation of the shutter device when the shutter device according to the present embodiment functions as a disaster prevention shutter device, and FIGS. 22 to 29 are related to the present embodiment. It is a figure which shows the transition of the circuit state of the control circuit 200 of FIG. 18 in case a shutter apparatus functions as a shutter apparatus for disaster prevention.

  19, until the disaster prevention signal BS is input to the automatic closing device 32 due to the occurrence of a fire or the like, that is, the terminal a of the control circuit 200 of FIG. 18 to which the solenoid 126 of the automatic closing device 32 is connected. , B until the disaster prevention signal BS is input, the control circuit 200 of FIG. 18 repeats the operation waiting state (step S1-NO) (the loop of the determination process of step S1).

  On the other hand, when the disaster prevention signal BS is input to the automatic closing device 32 (step S1-YES), the solenoid 126 of the automatic closing device 32 is energized (step S2). In the present embodiment, the disaster prevention signal BS is continuously input to the control circuit 200 until at least the shutter curtain 1 reaches the fully closed position after the occurrence of a fire or the like.

  FIG. 22 shows a circuit state of the control circuit 200 immediately after the disaster prevention signal BS is input between the terminals a and b of the control circuit 200 of FIG. As shown in FIG. 22, the microswitch 135 in the state shown in the figure is closed to the control circuit 200 side, and the fully open limit switch 201 and the fully closed limit switch 202 are also closed. It is in the state. For this reason, the current I shown in FIG. 22 flows through the control circuit 200 to which the disaster prevention signal BS is input, and the solenoid 126 is energized.

  Thereby, the slide member 120 of the automatic closing device 32 in the H position moves forward to the I position (see FIGS. 14 and 15) (step S3). As the slide member 120 advances, the closed micro switch 135 is opened (see FIG. 15).

  The circuit state of the control circuit 200 at this time is shown in FIG. As shown in FIG. 23, the micro switch 135 is connected to the control circuit 200 side, and the control line (closing operation confirmation line) 220 having a terminal c for confirming that the shutter curtain 1 has started closing movement. Switch to the side connection.

  As a result, the control circuit 200 becomes an open circuit as shown in FIG. 23, and energization of the solenoid 126 is stopped (step S4). Accordingly, a control signal indicating that the shutter curtain 1 is closed and starts moving is transmitted from the disaster prevention interlock control device 181 to, for example, a disaster prevention center (step S5).

  Further, since the brake device 19 is turned off by the advancement of the slide member 120 in step S3 described above (step S6), the weight reduction of the shutter curtain 1 (the closing movement due to the weight of the shutter curtain 1) starts (step S7). .

  Thereafter, shortly after the shutter curtain 1 starts its own weight drop, as shown in FIG. 24, the closed fully open limit switch 201 is opened (opened) (step S8), and the shutter curtain 1 continues its own weight drop. (Step S9).

  If the fully closed limit switch 202 is not actuated (not opened) (step S10-NO), that is, if the shutter curtain 1 has not reached the fully closed position (step S10) while the shutter curtain 1 is falling under its own weight. S10-NO), and when the obstacle 34 is not detected (step S11-NO), that is, the mechanical coupling device 39 is operated by the shutter curtain 1 being closed moving against the obstacle 34. If not (NO in step S11), the weight reduction of the shutter curtain 1 is continued (step S9).

  On the other hand, when the fully closed limit switch 202 is not actuated during the descent of the shutter curtain 1 (step S10-NO) and the obstacle 34 is detected (step S11-YES), that is, it is closed. When the mechanical coupling device 39 is operated by the moving shutter curtain 1 coming into contact with the obstacle 34 (step S11-YES), as described above, the shutter curtain 1, the locking wire 36, Are mechanically coupled, and the slide member 120 is retracted by pulling the first control wire 111 in the G direction shown in FIG. 17 (step S12). As described above, the backward movement is performed until the front end of the slide member 120 changes from the I position to the H position, and the slide member 120 returns to the original position (position in the initial state) (see FIG. 14).

  Further, as shown in FIG. 14, the microswitch 135 returns to the original state as the slide member 120 moves backward. The circuit state at this time is shown in FIG. 25, and the micro switch 135 is connected to the control line (closing operation confirmation line) 220 having a terminal c for confirming that the shutter curtain 1 has started to move. Switch to the control circuit 200 side (step S13).

  When the first control wire 111 is pulled, as shown in FIG. 12, the rotating member 42 to which one end of the first control wire 111 is connected rotates in the D direction. As shown in FIG. 25, the contact of the micro switch 170 is opened (opened) (step S14).

  As can be seen from FIG. 25 in which the circuit state of the control circuit 200 in steps S13 and S14 is shown, since the contacts of the full-open limit switch 201 and the microswitch 170 are open (open), the control circuit 200 Is an open circuit, and no current flows through the control circuit 200.

  Further, as described above, when the slide member 120 returns to the original H position (step S12), the brake device 19 is turned on (step S15). As a result, the falling of the dead weight of the shutter curtain 1 in contact with the obstacle 34 stops (step S16).

  Thereafter, until the obstacle 34 is removed, the state in which the lowering of the weight of the shutter curtain 1 is stopped (step S17—NO) is repeated (the determination processing loop of step S17). That is, the tension force acting on the locking wire 36 disappears by removing the obstacle 34, and the rotating member 42 shown in FIG. Until the illustrated micro switch 170 is closed, the state (step S17-NO) in which the weight reduction of the shutter curtain 1 is stopped is repeated (the loop of the determination process in step S17).

  On the other hand, when the obstacle 34 is removed (step S17—YES), the control circuit 200 to which the disaster prevention signal BS is input becomes a closed circuit as shown in FIG. 26, and the current I flows in the circuit. Thereby, the power supply of the delay device 210 is turned on (step S18), and time measurement by the timer circuit 211 is started (step S19). The time measurement by the timer circuit 211 is repeated until a preset time (for example, 10 seconds) elapses (step S20—YES) (repetition of step S20—NO (determination process loop of step S20)).

  Then, when the set time of the timer circuit 211 elapses (step S20-YES), as shown in FIG. 27, the timer contact 212 of the delay device 210 is closed (closed) (step S21). Thereby, the solenoid 126 of the automatic closing device 32 is energized (step S22), and the slide member 120 of the automatic closing device 32 moves forward (step S23). As a result, as shown in FIG. 28, the microswitch 135 is switched from the control circuit 200 side to the control line 220 side, whereby the control circuit 200 is opened and the delay device 210 is turned off (step S24). The timer contact 212 of the delay device 210 is opened (opened) (step S25).

  Thereafter, the processing after step S4 described above is performed. That is, the brake device 19 is turned off, and the shutter curtain 1 falls by its own weight again.

  In the determination process of step S10 described above, when the fully closed limit switch 202 is operated (step S10-YES), the obstacle 34 is detected in the determination process of step S11 described above (step S11-YES). The same processing is performed. That is, the operation of the mechanical coupling device 39 is performed by the shutter curtain 1 that is being closed moving contacting the floor 4 shown in FIG.

  As described above, the shutter curtain 1 and the lock wire 36 are mechanically coupled, and the slide member 120 is retracted by pulling the first control wire 111 in the G direction shown in FIG. 17 (step S26). ). As described above, the backward movement is performed until the front end of the slide member 120 changes from the I position to the H position, and the slide member 120 returns to the original position (position in the initial state) (see FIG. 14).

  Further, as shown in FIG. 14, the microswitch 135 returns to the original state as the slide member 120 moves backward. The circuit state at this time is shown in FIG. 25, and the micro switch 135 is connected to the control line (closing operation confirmation line) 220 having a terminal c for confirming that the shutter curtain 1 has started to move. Switch to the control circuit 200 side (step S27).

  When the first control wire 111 is pulled, as shown in FIG. 12, the rotating member 42 to which one end of the first control wire 111 is connected rotates in the D direction. The contact of the switch 170 is opened (opened) (step S28).

  Further, as described above, when the slide member 120 returns to the original H position (step S26), the brake device 19 is turned on (step S29). As a result, the falling of the dead weight of the shutter curtain 1 that has come into contact with the floor 4 (that is, reached the fully closed position) stops (step S29), and the disaster prevention section is formed by the shutter curtain 1 that has reached the fully closed position. .

  FIG. 29 shows the circuit state of the control circuit 200 when the shutter curtain 1 comes into contact with the floor 4 (that is, reaches the fully closed position). Since the contacts of the switch 202 and the fully open limit switch 201 are open (open), the control circuit 200 is an open circuit, and no current flows through the control circuit 200.

  As described above, the slide member 120 slides in the forward direction (K direction in FIG. 14) to the H position where the brake device 19 that is turned off is turned on when a tension force is applied to the locking wire 36. Then, when the solenoid 126 is energized, it slides in the reverse direction (L direction in FIG. 14) to the I position where the brake device 19 is turned off. The roller 130 of the bending lever member 129 serves as a holding member for holding the slide member 120 from stopping at the H position where the brake device 19 is turned on, and the bending lever member 129 is energized by energization of the solenoid 126. The stopped holding state of the slide member 120 by the roller 130 is released.

  In the shutter curtain stopping device according to the present embodiment described above, when the shutter curtain 1 under its own weight is in contact with the obstacle 34, the brake device 19 is mechanically turned on by the operation of the mechanical coupling device 39, and the shutter curtain The weight drop of 1 stops. On the other hand, when the obstacle 34 is removed thereafter, the brake device 19 is electrically turned off by the operation of the control circuit 200 to which the disaster prevention signal BS is continuously input, and the shutter curtain 1 starts to lower its own weight again. It is like that.

  For this reason, according to the shutter curtain stop device according to the present embodiment, when the obstacle 34 is removed, the brake device 19 for lowering the weight of the shutter shutter 1 that has been stopped again is mechanically performed. Compared with the case where it is made, the number of the machine parts which comprise a shutter curtain stop apparatus can be decreased more.

  Further, according to the shutter curtain stop device according to the present embodiment, when the obstacle 34 is removed, the brake device 19 for dropping the weight of the stopped shutter curtain 1 again is mechanically performed. Compared to the case where the shutter curtain 1 is in contact with the obstacle 34 in the middle of its own weight drop, the operation control of the shutter curtain 1 after the stop of the weight drop of the shutter curtain 1 can be flexibly performed. become.

  Furthermore, the shutter curtain stop device according to the present embodiment is provided with a delay device 210 that is a delay device for delaying the turning-off of the brake device 19 of the switch 13 that has been turned on electrically. Therefore, the switching of the brake device 19 from on to off is not instantaneously performed due to the delay action of the delay device 210. Therefore, the shutter curtain 1 restarting its own weight descent by removing the obstacle 34 starts with a time delay from the removal of the obstacle 34.

  For this reason, according to the shutter curtain stopping device according to the present embodiment, the obstacle 34 can be moved from one space partitioned by the shutter curtain 1 to the other space with a time margin. When the obstacle 34 is a human, the human can move from one space partitioned by the shutter curtain 1 to the other space with a time margin.

  In the control circuit 200 shown in FIG. 18, when the shutter curtain 1 that is closing (moving under its own weight) reaches a position (in other words, a predetermined height) that is a predetermined distance away from the fully closed position in the opening movement direction. It is also possible to connect a limit switch that operates at (the contact opens) instead of the fully closed limit switch 202.

  According to this, from when the shutter curtain 1 moving in the closing position reaches a position that is a predetermined distance away from the fully closed position in the opening movement direction (when the above limit switch is actuated) and until reaching the fully closed position. When it comes into contact with the obstacle 34, the brake device 19 is turned on by the operation of the mechanical coupling device 39, so that the closing movement of the shutter curtain 1 is stopped.

  However, the control circuit 200 is an open circuit because the limit switch is open. For this reason, since the disaster prevention signal BS that is continuously input does not flow through the control circuit 200, the solenoid 126 is not energized, and the shutter curtain 1 does not move again even if the obstacle 34 is removed. That is, even when the obstacle 34 is removed, the brake device 19 for closing and moving the shutter curtain 1 again is not turned off. Therefore, the shutter curtain 1 continues to stop at the position where it comes into contact with the obstacle 34.

  In this way, the limit switch is turned on until the shutter curtain 1 in the closing movement reaches the position spaced apart from the fully closed position in the opening movement direction by the predetermined distance, and the shutter curtain 1 in the closing movement is The shutter curtain position detection switch means is turned off when reaching the position separated from the fully closed position in the opening movement direction by the predetermined distance, and is connected in series to the solenoid 126 of the control circuit 200. .

  Here, the “position where the limit switch operates” is “a position spaced apart from the fully closed position by a predetermined distance in the moving direction”, such as a person who is in contact with the shutter curtain 1 when the obstacle 34 is a person or the like. When the shutter curtain 1 is closed and moved to the extent that it is difficult to pass from one space partitioned by the shutter curtain 1 to the other space, a seat plate 1B (more on the closed end of the shutter curtain 1) Specifically, it refers to the height position of the movable part 70B).

  In addition, it is preferable that the said limit switch can adjust the position which act | operates freely. According to this, the limit switch can be used as a fully-closed limit switch by adjusting the operating position.

  When the limit switch is connected to the control circuit 200 in place of the full-closed limit switch 202, the full-closed limit switch 202 for use when the shutter device according to the present embodiment operates as a management shutter device. (It is not necessary to connect to the control circuit 200).

  Thus, according to the embodiment in which the limit switch is connected to the control circuit 200, according to the closing movement amount (falling amount) of the shutter curtain 1 when contacting the obstacle 34, in other words, the shutter curtain 1 Depending on the height position of the seat plate 1B, the operation control of the shutter curtain 1 after the stop of the closing movement of the shutter curtain 1 due to the contact with the obstacle 34 is different (in other words, the operation control is flexibly performed). It can be carried out.

  That is, in the shutter curtain stopping device according to the embodiment of FIG. 30, the shutter curtain 1 is stopped by contacting the obstacle 34 during the closing movement until the shutter curtain 1 reaches the predetermined height position from the fully open position. Then, when the obstacle 34 is removed, the shutter curtain 1 can be lowered again so that the shutter curtain 1 is in the closed movement from the predetermined height position to the fully closed position. By contacting the object 34, after the shutter curtain 1 is stopped, it is possible to perform operation control so that the shutter curtain 1 is not lowered again (still stopped) even if the obstacle 34 is removed.

  The limit switch, the aforementioned fully closed mitt switch 202 and the fully opened limit switch 201 may be provided on the guide rail 6 and operated when the seat plate 1B of the shutter curtain 1 comes into contact. It may be provided on the take-up shaft 11 and the drive shaft 14 of the opening / closing machine 13 and operate when the amount of rotation of the take-up shaft 11 or the drive shaft 14 reaches a predetermined amount.

  30 and 31 are circuit diagrams illustrating a control circuit according to the embodiment in which no delay device is provided, and FIG. 30 is a diagram illustrating an initial state of the control circuit 300 according to the present embodiment. These are figures which show the circuit state of the control circuit 300 when the obstruction 34 contact | abuts to the shutter curtain 1. FIG.

  As shown in FIG. 30, the control circuit 300 according to the present embodiment is obtained by removing the delay device 210 from the control circuit 200 according to the embodiment of FIG. The micro switch 170 is connected in series with the solenoid 126.

  Further, as shown in FIG. 31, while the shutter curtain 1 is in contact with the obstacle 34 and the obstacle 34 is not removed, the contact of the micro switch 170 remains open (open). The control circuit 300 is an open circuit, and no current flows through the control circuit 300.

  Thereafter, when the obstruction 34 is removed and the contact of the micro switch 170 is closed (closed), the control circuit 300 immediately becomes a closed circuit, the solenoid 126 is energized, and the re-lowering of the shutter curtain 1 is immediately performed without delay. Done.

  In each embodiment described above, the signal input between the terminals a and b of the control circuits 200 and 300 is the disaster prevention signal BS (DC24V) from the disaster prevention interlock control device 181. , 300 may be a signal (DC24V) from a battery (storage battery) or a signal obtained by converting an AC signal from a commercial power source into DC24V, and these are used together (for example, A power source that can be used in the order of a commercial power source, a disaster prevention interlock control device, and a battery may be employed.

  Further, in each of the embodiments described above, the obstacle removal detection means for detecting that the obstacle 34 in contact with the shutter curtain 1 has been removed is the rotation member 42 of the second processing device 38 rotating. Although it was the micro switch 170 that operates (on, off) by doing, it may be arbitrary as long as it is detected that the tension that has acted on the locking wire 36 that is the bridging member has disappeared, For example, an actuator may be connected to the lock wire 36 or the first control wire 111, and the pull switch may be turned off when the wires are pulled and turned on when the wires are released.

  In each embodiment described above, when the shutter curtain 1 reaches the fully closed position, if for some reason the automatic closing device 32 is not in the initial state, it is disposed adjacent to the operating device 30. By operating the “return” button of the manual return device 186 described above, the winding shaft of the manual return device 186 rotates in the direction in which the third control wire 113 is wound. Will be pulled. As a result, the slide member 120 of the automatic closing device 32 performs a return movement in which the position of the front end returns to the H position in FIG. 14, so that the entire automatic closing device 32 returns to the initial state. Further, as described above, the automatic closing device 32 can be returned to the initial state by pulling the third control wire 113 with the manual operation member 141 of the manual return device shown in FIG. Note that these manual return devices are not necessarily provided.

  In each of the embodiments described above, in order to close and move the shutter curtain 1 that is in the fully open state (has reached the fully open position) during normal time (normal time), the operating device shown in FIG. By operating the “close” button 30, the shutter curtain 1 is closed and moved electrically. On the other hand, in order to open and move the shutter curtain 1 in the fully closed state (having reached the fully closed position), the shutter curtain 1 is opened electrically by operating the “open” button of the operation device 30. Move. Thus, when the shutter device according to the present embodiment operates as a management (opening) shutter device for opening and closing the entrance 2, the closing movement of the shutter curtain 1 is “closed” of the operation device 30. The operation is performed by operating the button, and is not performed by the operation of the automatic closing device 32 or the operation of the manual closing device 184 described above. For this reason, normally, the state of the automatic closing device 32 when the shutter curtain 1 starts the closing movement is the initial state shown in FIG.

  In the normal state, when the shutter curtain 1 that is being closed is in contact with the obstacle 34, the first lever member 61 and the second lever member of the mechanical coupling device 39 are the same as in the case of the emergency described above. 62 holds and locks the portion 36 </ b> A of the locking wire 36 in the friction members 67 and 68, so that downward tension acts on the second portion 36 </ b> C of the locking wire 36.

  Thus, the closing movement (self-weight drop) of the shutter curtain 1 is stopped by the tension force acting on the second portion 36 </ b> C of the locking wire 36. Accordingly, the rotation member 42 of the second processing device 38 to which the end portion of the second portion 36C of the lock wire 36 is coupled via the coil spring 43 rotates in the direction D shown in FIG. It will be. As described above, the other end portion of the first control wire 111 whose one end portion is connected to the rotating member 42 is connected to the first connecting portion 138 </ b> A of the connecting member 138 of the slide member 120. Therefore (see FIG. 14), the first control wire 111 is pulled by the rotation member 42 rotating in the D direction. As shown in FIG. 14, there is a gap 176 between the rear end portion 120E of the wide portion 120D of the slide member 120 before the first control wire 111 is pulled and the roller 130 of the bending lever member 129. Is formed. For this reason, when the first control wire 111 is pulled, the slide member 120 can be retracted by the gap 176.

  As described above, FIG. 12 is a diagram showing the second processing device 38 when the shutter curtain 1 is not in contact with the obstacle 34. At this time, the upper portion of the machine frame 49 of the second processing device 38 is shown. The operation member 171 of the microswitch 170 fixedly arranged is in a state of being in contact with the outer peripheral surface 42D of the rotating member 42, that is, in a state where the microswitch 170 is not in operation (a state where the contacts are closed). On the other hand, FIG. 17 is a diagram showing the second processing device 38 when the rotating member 42 is rotated in the D direction by the shutter curtain 1 coming into contact with the obstacle 34. As shown in FIG. 17, the rotation member 42 rotates in the D direction, so that the operation member 171 of the micro switch 170 abuts on the dog member 173 attached to the rotation member 42 ( Get on). For this reason, the operating member 171 that protrudes downward by the biasing force of the spring is immersed, and the micro switch 170 is activated (contact is opened). That is, it is in a state where it is detected that a tension force is applied to the second portion 36C of the locking wire 36, in other words, a state where the obstacle 34 is electrically detected.

  In the normal state, the rotation amount of the rotation member 42 in the D direction is, as described above, the gap 176 shown in FIG. When the amount of movement reaches the gap 176 or smaller than this, the microswitch 170 is activated as shown in FIG. Thereby, the control device 27 to which the micro switch 170 is connected via the lead wire 172 performs control to cut off the energization of the coil 25 of the electric motor device 18 of the switch 13, and as a result, the electric motor device 18. The positive drive stops. Thereafter, control is performed to cut off the energization of the solenoid 24 of the brake device 19 of the opening / closing machine 13, whereby the brake device 19 is switched from OFF to ON. As a result, the shutter curtain 1 stops the electric descent.

  For this reason, the micro switch 170 electrically detects the obstacle 34 while the shutter device 1 according to this embodiment functions as a management shutter device while the shutter curtain 1 is electrically closed and moved. It is a detection means. That is, the micro switch 170 is a normal obstacle detection unit that detects contact of the shutter curtain 1 with the obstacle 34 during the electric lowering in the normal state. On the other hand, the mechanical obstacle detection device 35 shown in FIG. 4 serves as an emergency obstacle detection means for detecting contact with the obstacle 34 whose weight is falling on the shutter curtain 1 in an emergency. . Further, the microswitch 170 serves as tension force generation detection means for detecting that tension force is applied to the locking wire 36 that is a bridging member.

  Furthermore, as described above, the micro switch 170 is a tension force disappearance detecting means for detecting that the tension force acting on the locking wire 36 has disappeared. In other words, the micro switch 170 serves as an obstacle removal detection means for detecting that the obstacle 34 has been removed.

  In addition, when the microswitch 170 is activated, the control device 27 to which the lead wire 172 of the microswitch 170 is connected avoids contact (collision) with the obstacle 34 that is in contact with the shutter curtain 1. The following control is performed.

  First, control for cutting off the energization of the coil 25 of the electric motor device 18 of the opening / closing device 13 is performed, whereby the positive drive of the electric motor device 18 is stopped. Thereafter, control is performed to cut off the energization of the solenoid 24 of the brake device 19 of the opening / closing device 13, thereby turning on the brake device 19. As a result, the shutter curtain 1 stops the electric descent.

  Thereafter, control for energizing the solenoid 24 of the brake device 19 of the switch 13 again is performed, and control for energizing the coil 25 of the electric motor device 18 of the switch 13 again is performed. Thereby, the electric motor device 18 is reversely driven (reversely rotated). As a result, the shutter curtain 1 is electrically lifted (opened movement), in other words, reversed and lifted.

  When the fully open limit switch 201 (see FIG. 18) is operated while the shutter curtain 1 is being electrically lifted, control to cut off the energization of the coil 25 of the electric motor device 18 of the switch 13 (electric motor device 18). Control for stopping the reverse driving of the brake device 19 and control for cutting off the energization of the solenoid 24 of the brake device 19 of the switch 13 (control for turning on the brake device 19). As a result, the shutter curtain 1 stops being lifted by electricity.

  On the other hand, when the fully open limit switch 201 is not operated while the shutter curtain 1 is being electrically lifted, the shutter curtain 1 is not moved until a predetermined time T11 has elapsed since the shutter curtain 1 started to be lifted electrically. Electricity rise continues. Whether or not the predetermined time T11 has elapsed since the start of the electric raising of the shutter curtain 1 is determined by the time counted by the timer circuit provided in the control device 27 shown in FIG.

  When the predetermined time T11 has elapsed since the start of the electric raising of the shutter curtain 1, the control for cutting off the energization of the coil 25 of the electric motor device 18 of the switch 13 is performed. Reverse drive stops. Thereafter, control is performed to cut off the energization of the solenoid 24 of the brake device 19 of the opening / closing device 13, thereby turning on the brake device 19. As a result, the shutter curtain 1 stops being lifted by electricity.

  After stopping the electric raising of the shutter curtain 1, the electric descent is started again after a predetermined time T12 has elapsed. That is, the stop of the shutter curtain 1 is continued until the predetermined time T12 elapses after the electric lift of the shutter curtain 1 stops. On the other hand, when the predetermined time T12 has elapsed after the electric lift of the shutter curtain 1 has stopped, the above-described control for lowering the shutter curtain 1 is performed. Note that whether or not the predetermined time T12 has elapsed since the shutter curtain 1 stopped being electrically lifted is determined by the time counted by the timer circuit.

  The predetermined times T11 and T12 counted by the timer circuit can be arbitrarily set, and T11 and T12 may be the same.

  In addition, since the curtain sub-part 71B moves away from the obstacle 34 due to the electric lift of the shutter curtain 1 in contact with the obstacle 34, the curtain sub-part 71B descends relative to the curtain main part 71A. . Accordingly, the rotating member 42 in the state shown in FIG. 17 rotates in the C direction by the return force of the return spring 100, so that it contacts the dog member 137 attached to the rotating member 42. The actuating member 171 of the micro switch 170 of the second processing apparatus 38 that has been immersed in the state is projected again (see FIG. 12). As a result, the operation of the micro switch 170 is released (the contact is closed). That is, the obstacle detection state of the electric obstacle detection device is canceled.

  When the shutter curtain 1 that has been electrically raised is lowered again, if the obstacle 34 has not yet been removed, the micro switch 170 of the second processing device 38 is activated again (contacts open). Therefore, control for electrically raising the shutter curtain 1 described above by the control device 27 is performed.

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

DESCRIPTION OF SYMBOLS 1 Shutter curtain which is opening and closing body 16 Crib which is immovable member 19 Brake device 34 Obstacle 36 U-shaped locking wire 120 which is a bridging member which is a tension acting member and is also a string member 120 Actuating member Slide member 126 Control circuit solenoid 130 Roller 170 holding member Micro switch 200/300 control circuit 202 Obstacle removal detection switch means Limit switch 210 Opening / closing body position detection switch means 210 Delay device 211 Timer circuit 212 Timer Timer contact as a switch means BS Disaster prevention signal

Claims (11)

  In the opening / closing body stop device of the opening / closing apparatus for stopping the opening / closing movement of the opening / closing body, when the opening / closing body abuts on an obstacle in the middle of the closing movement, the closing movement of the opening / closing body is mechanically stopped, An opening / closing body stop device for an opening / closing device, wherein when the obstacle is removed, the stop state of the opening / closing body for reclosing and moving the stopped opening / closing body is electrically performed.   2. The opening / closing body stop device for an opening / closing apparatus according to claim 1, comprising: a stationary member that is immovable with respect to the opening / closing body; and a portion that is spanned between the opening / closing body and the stationary member. A bridging member that is coupled to the opening / closing body when the body abuts on the obstacle during the closing movement, and is mechanically turned on by a tension force acting on the bridging member to close the opening / closing body. A brake device for stopping the movement, and when the obstacle is removed, the brake device for closing and moving the stopped opening / closing body is electrically turned off. An opening / closing body stop device for an opening / closing device.   The switchgear stopping device for a switchgear according to claim 2, further comprising: a solenoid energized when the obstacle is removed; and an actuating member that is actuated by energization of the solenoid. An opening / closing body stop device for an opening / closing device, wherein the brake device is turned off.   4. The opening / closing body stopping device for an opening / closing device according to claim 3, wherein the actuating member slides in a forward direction to a position where the brake device is turned on when the tension is applied to the bridging member. A slide member that slides in the reverse direction to a position where the brake device is turned off by energizing the brake device, and has a holding member for holding that the slide member stops at a position where the brake device is turned on. An opening / closing body stopping device for an opening / closing device, wherein the holding state of the slide member by the holding member is released by energization of the solenoid.   The switchgear stop device for a switchgear according to claim 3 or 4, wherein the solenoid is connected and a control circuit for electrically controlling the brake device is provided, and a disaster prevention signal is provided in the control circuit. An opening / closing body stopping device for an opening / closing device, wherein the solenoid is continuously input and the solenoid is energized by the disaster prevention signal.   6. The opening / closing body stop device for an opening / closing device according to claim 5, further comprising obstacle removal detection means for detecting that the obstacle has been removed, the obstacle removal detection means acting on the bridging member. An opening / closing body stop device for an opening / closing device, characterized in that it detects that the tension that has been applied has disappeared.   7. The opening / closing body stop device for an opening / closing device according to claim 6, wherein the obstacle removal detecting means is connected to the control circuit in series with the solenoid, and is turned off when a tension is acting on the bridging member. An opening / closing body stopping device for an opening / closing device, which is an obstacle removal detection switch means that is turned on when the tension applied to the bridging member disappears.   The switchgear stopping device for a switchgear according to any one of claims 5 to 7, wherein when the obstacle is removed, turning off the brake device for reclosing and moving the stopped switchgear is electrically performed. An opening / closing body stopping device for an opening / closing device, comprising a delay device for delaying what is performed automatically.   9. The opening / closing body stop device for an opening / closing device according to claim 8, wherein the delay device is connected to the control circuit, and the delay device counts an elapsed time from when the obstacle is removed. And a timer switch means connected in series to the solenoid and turned on and off by the timer circuit, and the timer circuit reaches the predetermined time measured by the timer circuit. Until this time, the timer switch means is turned off, and when the elapsed time counted by the timer circuit reaches a predetermined time, the timer switch means is turned on.   The opening / closing body stopping device for an opening / closing apparatus according to any one of claims 5 to 9, wherein the opening / closing body that is being closed is moved from a fully closed position to a position separated by a predetermined distance in the opening movement direction. When the brake device comes into contact with the obstacle until it reaches the closed position, the closing movement of the opening / closing body is stopped by mechanically turning on the brake device, but the obstacle is removed. However, the opening / closing body stopping device for the opening / closing device is not turned off electrically for closing and moving the opening / closing body again.   11. The opening / closing body stopping device for an opening / closing apparatus according to claim 10, wherein the control circuit includes a state where the opening / closing body in the closing movement reaches the position separated from the fully closed position by the predetermined distance in the opening movement direction. Opening / closing body position detection switch means that is turned on and turned off when the opening / closing body that is closing and moving reaches the position spaced apart from the fully closed position in the opening movement direction by a predetermined distance is connected in series to the solenoid An opening / closing body stopping device for an opening / closing device.

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