JP2007224723A - Closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a closing device such as a building shutter curtain that prevents things or the closing device itself from damages when it closes an entrance or others to be closed. <P>SOLUTION: The shutter curtain 45 as a closing device is arranged at an entrance or exit 4 to be closed, and vertically opens or closes this entrance or exit 4. The shutter curtain 45 comprises a hard part formed with a gate-shaped panel 46 that includes a lateral empty bottom in part 48, and a soft part made of a sheet 49 applied to the empty part 48. The shutter curtain 45 vertically guided by left and right guide rails 52 is stopped from lowering movements with stoppers 54 arranged within the guide rails 52. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a closing device for an opening and closing body, and can be used for, for example, a building shutter including a fire prevention and smoke prevention fire prevention shutter, a sliding door, a movable partition, and a hinged door.

  Conventionally, a shutter for a building as an opening / closing body device has a shutter curtain that opens and closes an entrance / exit that is a blocked portion by moving up and down, and this shutter curtain is an opening / closing body disposed at the entrance / exit. A slat continuous body formed by connecting a large number of slats made of a metal plate having a predetermined thickness, and a metal seat plate connected to the closed end of the slat continuous body. Yes.

  The shutter curtain of a conventional building shutter is a hard part made of steel plate, so when the shutter curtain descends and closes the entrance, if there is an object directly under the shutter curtain, this hardness There is a risk that the object may be damaged or the shutter curtain itself may be damaged by the collision with the object. Further, since the entire weight of the shutter curtain acts on the object, it is difficult to take out the object from under the shutter curtain.

  An object of the present invention is to provide an opening / closing body device and a closing method for the opening / closing body that can prevent damage to the object and damage to the opening / closing body when the opening / closing body such as a shutter curtain of a building shutter closes a blocked part such as an entrance / exit. Is to provide.

  An opening / closing body device according to the present invention includes an opening / closing body that is disposed in a blocked portion, and that opens and closes the blocked portion, and stopper means that stops movement of the opening / closing body toward the closed side. An opening / closing body device, wherein the opening / closing body has a hard part and a soft part, the soft part is disposed closer to the closing side than at least a part of the hard part, and the stopper means has an edge of the blocked part. It is characterized in that the movement of the opening / closing body to the closed side is stopped when it comes into contact with the part.

  According to this opening / closing body device, when the soft part of the opening / closing body comes into contact with the edge of the blocked part, the movement of the opening / closing body to the closing side is stopped by the stopper means, so the soft part to the edge of the blocked part When the object is present in the blocked part, the closing movement of the opening / closing body stops when the soft part hits the object and the object is moved. It is possible to effectively prevent damage and damage to the opening / closing body. Further, at this time, the soft part deforms following the shape of the object and contacts the edge of the blocked part, so that the blocked part can be reliably blocked by the opening / closing body. Further, when the closing movement of the opening / closing body is downward, the closing movement of the opening / closing body is stopped by the stopper means, and therefore the entire weight of the opening / closing body does not act on the object hitting the soft part. Easy to take out.

  An example of the opening / closing body is a shutter curtain that moves up and down a building shutter. In the case of this shutter curtain, the soft part can be a flexible sheet, for example, and the lower part of the shutter curtain can be formed with this sheet. According to this, when the lower end of the flexible sheet reaches the lower edge portion of the entrance / exit which is a blocked portion to be opened and closed by the shutter curtain, the descent of the shutter curtain is stopped by the stopper means.

  Note that the above flexible sheet may be provided with a reinforcing member such as an intermediate rail.

  Further, the seat plate as the hard portion to which the upper end of the flexible sheet is coupled may be a long through-hole continuous in the width direction of the blocked portion, and is divided in the width direction of the blocked portion, A plurality of short ones arranged side by side may be used.

  In the above opening / closing device according to the present invention, another soft part and a hard part are provided on the opposite side of the hard part from the closing side, and these constitute an opening / closing body such as a shutter curtain. May be.

  The opening / closing body device according to the present invention includes an opening / closing body that is disposed in the blocked portion and opens and closes the blocked portion, and stopper means for stopping the opening / closing body from moving toward the closed side. The opening / closing body device includes a first hard portion, a soft portion, and a second hard portion, and the soft portion is disposed closer to the closing side than at least a part of the first hard portion, The hard part is disposed at the end of the soft part on the closing side, and the stopper means stops the movement of the opening / closing body to the closing side when the second hard part comes into contact with the edge of the blocked part. It is characterized by being.

  In this opening / closing body device, since the movement of the opening / closing body to the closing side is stopped by the stopper means when the second hard part of the opening / closing body contacts the edge of the to-be-shielded part, the first to the edge of the to-be-shielded part is stopped. 2 The part to be blocked can be blocked more reliably by the contact of the hard part, and if there is an object in the part to be blocked, the soft part is deformed when the second hard part hits this object. The impact of the collision to the object is alleviated, and the damage to the object and the opening / closing body are prevented. In addition, when the closing movement of the opening / closing body is downward, the entire weight of the opening / closing body can be prevented from acting on the object by the stopper means, so that the object can be easily taken out.

  Even when the opening and closing body in this opening and closing body device is a shutter curtain that moves up and down the building shutter, the soft part can be a flexible sheet, and the first part provided at the lower end of this sheet that forms the lower part of the shutter curtain. Two hard parts can be used as a seat plate.

  The flexible sheet may be provided with a reinforcing member such as an intermediate rail.

  Also in this opening / closing body device, another soft part and a hard part may be provided on the side opposite to the closing side with respect to the first hard part, and an opening / closing body such as a shutter curtain may be configured by these. .

  When the opening / closing body of the opening / closing body device including the above opening / closing body devices is a shutter curtain for a building shutter and the soft part is a flexible sheet, this sheet is opened and closed by the shutter curtain. One sheet may be continuous in the width direction of the doorway, or a plurality of sheets arranged in parallel in the width direction of the doorway.

  In addition, if this building shutter is a fire prevention and smoke prevention fire prevention shutter, or a factory shutter placed at the entrance of a factory, for example, a forklift, etc., a flexible sheet is used as the entrance / exit. A plurality of sheets arranged side by side in the width direction, and at least one of these sheets may be turned freely, and an opening may be formed in the opening / closing body by turning the sheets. In this way, the opening formed by turning the sheet is removed in order to escape from one area partitioned by the shutter curtain to the other area in the event of an emergency such as a fire in the case of a disaster prevention shutter. In the case of a factory shutter, only a part of the entrance / exit is opened for people to enter and exit, and the majority of the entrance / exit is closed so that air flows into and out of the factory. This makes it possible to achieve a constant temperature inside the factory.

  Note that the turnable sheet may be arranged with an overlap margin in the width direction of the blocking portion relative to other sheets, or may be arranged without an overlap margin.

  In addition, only one sheet that can be turned may be provided, but a plurality of sheets may be provided in the width direction of the entrance and exit, and a plurality of sheets that can be turned are provided in the thickness direction of the shutter curtain, and all these sheets are turned. Thus, the opening may be formed. When multiple sheets that can be turned are provided in the thickness direction of the shutter curtain, fire and smoke can be effectively blocked for the disaster prevention shutter, and the factory temperature can be kept constant for the factory shutter. It can be achieved more effectively.

  The opening / closing body device according to the present invention includes an opening / closing body that is disposed in the blocked portion and opens and closes the blocked portion, and stopper means for stopping the opening / closing body from moving toward the closed side. In the open / close body device, at least a part of the front end portion of the open / close body is a movable body, and the stopper means opens and closes the open / close body when the movable body comes into contact with the edge of the blocked portion. The movable body is configured to stop the movement of the body to the closed side, and the movable body is movable with a displacement component in the opening / closing direction of the opening / closing body. .

  According to this opening / closing body device, the movement of the opening / closing body to the closed side is stopped by the stopper means when the movable body comes into contact with the edge of the to-be-shielded part, so that the to-be-shielded part can be blocked by the opening / closing body. When there is an object in the blocking section, when the movable body hits this object, the movable body moves while having a displacement component to the open side due to the reaction force from the object. Is mitigated and damage to the object and to the opening and closing body is prevented. Further, when the closing movement of the opening / closing body is downward, it is possible to eliminate the object of the entire weight of the opening / closing body from the stopper means, so that the object can be easily taken out.

  In this opening / closing body device, the movable body may rotate around the center of rotation by a hinge or the like, or it may slide like the slider in the same direction as the opening / closing direction of the opening / closing body, and hits the object. Any one can be used as long as it has a displacement component in the opening and closing directions of the opening / closing body.

  In each of the above opening / closing body devices, the stopper means for stopping the movement of the opening / closing body to the closing side can adopt any structure and type, and when the opening / closing body is a shutter curtain of a building shutter, this stopper The means may be an electric signal provided on the shutter for building or a brake operated by a physical force from a mechanical limit device, and a shutter curtain key member provided on a guide rail for guiding the vertical movement of the shutter curtain, A stopper member including a locking member may be used. The shutter curtain and the winding unit are connected to each other, and the shutter curtain that is drawn out and lowered from the winding unit by its own weight is suspended and supported on the winding unit in an equilibrium state in which the shutter curtain is not rotated any further. It may be a member, and the stopper means can be arbitrarily determined according to the drive type of the building shutter, etc.

  Further, the closing method of the opening and closing body according to the present invention is a closing method of the opening and closing body that is disposed in the blocked portion and opens and closes the blocked portion, and the opening and closing body is closed. A hard part and a soft part disposed closer to the hard part than the hard part, and when the soft part comes into contact with the edge of the part to be blocked, the closing movement of the opening / closing body is temporarily stopped. The opening / closing body is closed and moved again while deforming the soft part.

  According to this closing method of the opening / closing body, the closing movement of the opening / closing body is temporarily stopped when the soft part comes into contact with the edge of the part to be blocked, so the contact of the soft part to the edge of the part to be blocked In this case, even if an object is present at the part to be blocked, the impact due to the collision with the object is mitigated by the deformation of the soft part, and the damage to the object and the opening / closing body can be prevented. The object can be removed while it is once stopped. In addition, since the opening and closing body once again stops and moves again while deforming the soft part, the hard part finally comes into contact with the edge of the blocked part through the deformed soft part. The blocking property of the blocked part can be improved.

  When this closing method of the opening / closing body is applied to a shutter curtain that moves up and down of a building shutter, the soft part can be a flexible sheet that forms the lower part of the shutter curtain.

  Thus, when this closing method of the opening and closing body is applied to the shutter curtain of a building shutter, the shutter curtain can be temporarily stopped by controlling the shutter curtain drive control device using a timer, etc. Therefore, it can be performed by a mechanical structure using a thermal fuse that melts when the environmental temperature rises above a certain value, a shape memory metal that deforms by heat, or the like.

  Further, the closing method of the opening / closing body according to the present invention is a closing method of the opening / closing body that is disposed in the blocked portion, and that opens and closes the blocked portion, and closes and moves the opening / closing body. A movable body having a displacement component in the opening and closing directions is provided at the front end of the side, and the movable body is closed when the movable body comes into contact with the edge of the blocked part. Is temporarily stopped, and then the opening / closing body is further closed and moved.

  According to this closing method of the opening / closing body, the closing movement of the opening / closing body is temporarily stopped when the movable body comes into contact with the edge of the blocked portion. In this case, even if an object is present in the part to be blocked, the impact caused by the collision with the object is mitigated by the movement of the movable body with the displacement component to the open side. And the opening / closing body can be prevented, and the object can be removed by moving the movable body to the open side.

  In this closing method of the opening / closing body, when the opening / closing body is a shutter curtain for a building shutter, the shutter curtain can be temporarily stopped by controlling the shutter curtain drive control device using a timer or the like. This can also be achieved by a mechanical structure using a thermal fuse that melts when the environmental temperature rises above a certain value due to a fire or the like, or a shape memory metal that is deformed by heat.

  In this closing method of the opening / closing body, the movable body provided at the front end of the opening / closing body may be slidable in the same direction as the opening / closing direction of the opening / closing body, such as a box-shaped slider. Moreover, what can be rotated centering | focusing on rotation center parts, such as a hinge, The structure and shape are arbitrary. Further, when the movable body further closes and moves after the movable body contacts the edge of the interrupted part, only the remaining part of the movable body except for the movable body can be closed and moved with respect to the movable body. In addition, the movable body that contacts the edge of the portion to be blocked may be configured such that the opening / closing body is moved while being bent and deformed.

  In each of the above-described closing methods of the opening and closing body, the closing movement of the opening and closing body may be temporarily stopped once, may be temporarily closed after being stopped, and may be stopped once again. Also good.

  Further, the closing movement speed of the opening / closing body after being temporarily stopped may be the same as the speed before temporarily stopping, or may be slower or faster than this.

  Further, the closing method of the opening / closing body according to the present invention is a closing method of the opening / closing body that is disposed in the blocked portion, and that opens and closes the blocked portion, and closes and moves the opening / closing body. When the tip on the side reaches a certain distance from the edge of the blocked part, the closing movement speed of the opening / closing body is reduced below the previous speed, and thereafter the closing movement of the opening / closing body is maintained. Is.

  According to this closing method of the opening / closing body, when the front end of the closing side of the opening / closing body reaches a certain distance from the edge of the blocked part, the closing movement speed of the opening / closing body decreases, so there is an object in the blocked part. In this case, the collision speed of the opening / closing body to the object can be reduced, or the object can be removed from the blocked part before the opening / closing body collides. Can be prevented.

  In this closing method of the opening and closing body, after the opening and closing body that has reached a certain distance from the edge of the part to be blocked has closed and moved at a reduced speed, it has moved for a certain distance or at a certain time after moving at this decreasing speed. After that, the closing speed may be increased. According to this, it becomes possible to close and move the opening / closing body at a high speed after removing the object from the blocked part, and effectively prevent damage to the object and damage to the opening / closing body due to the collision between the opening / closing body and the object. However, the blockage of the blocked portion by the opening / closing body can be accelerated.

  Furthermore, the closing method of the opening / closing body according to the present invention is a closing method of the opening / closing body that is disposed in the blocked portion, and that opens and closes the blocked portion, and that closes and moves the opening / closing body. It comprises a hard part and a soft part arranged closer to the closing side than the hard part, and when the soft part comes into contact with the edge of the blocked part, the closing movement speed of the opening / closing body is the speed up to that time. After that, the opening / closing body is closed and moved at a reduced speed while deforming the soft part.

  Since the closing movement speed of the opening / closing body can be reduced even by this closing method of the opening / closing body, the same effect as the closing method of the opening / closing body can be achieved, and the closing movement speed of the opening / closing body is such that the soft part is the edge of the blocked part. Since it falls after contacting a part, the interruption | blocking property of a to-be-shielded part is securable while the opening-closing body is closing and moving at a decreasing speed.

  In order to reduce the closing movement speed of the opening / closing body from the middle as in these closing methods of the opening / closing body, when the opening / closing body is driven by the drive control device, the drive control device reduces the closing movement speed. Alternatively, a speed reduction means using mechanical parts may be provided in the moving path of the opening / closing body, and the closing movement speed of the opening / closing body may be reduced by this means.

  The latter can be applied to both the case where the opening / closing movement of the opening / closing body is performed by the drive control device and the case where the opening / closing body is moved manually or by its own weight without using the drive source. In addition, the latter has the effect that it can be realized with a relatively simple structure than the former.

  In the case where the opening / closing body is a shutter curtain that moves up and down the shutter for the building, when the latter is adopted, the speed reducing means includes a stationary member that is stationary relative to the shutter curtain, and the shutter curtain. Of at least one of the above.

  The immovable member here means, for example, a guide rail for guiding the opening and closing movement of the shutter curtain, a member formed with a lintel when the shutter curtain opens and closes, or a winding type A bracket or the like that supports the winding portion of the shutter curtain on both sides and faces the end surface of the wound shutter curtain.

  A specific example of the speed reducing means in the case where the stationary member is a guide rail is a friction member disposed inside the guide rail and in contact with the side of the shutter curtain, and another example is the inside of the guide rail. And an elastic member such as a spring that is attached to the closed end of the shutter curtain or is provided on the blocked part side so as to face the closed end of the shutter curtain. It is possible to employ a speed reduction means consisting of In addition, a specific example of the speed reducing means in the case where the stationary member is a member formed with a lintel is that when the shutter curtain comes out of the lintel by a certain amount, it contacts the lintel peripheral portion and the speed of the shutter curtain It is to provide the shutter curtain with a contact portion that lowers.

  Further, a specific example of the speed reducing means in the case where the stationary member is the bracket is a predetermined portion of the bracket that faces the end face of the shutter curtain that is mostly drawn out from the winding portion and slightly remains in the winding portion. A contact member that contacts the end surface of the shutter curtain, such as a friction member, and the shutter member reduces the speed of the shutter curtain by the relative movement between the shutter curtain and the shutter curtain when the rest of the shutter curtain is lowered. It is.

  If the stationary member is a member having two or more left and right like the guide rail or bracket, the speed reducing means may be provided for all of them, and only a part of these members may be provided. It may be provided.

  When the closing movement speed of the opening / closing body is lowered as described above, the opening / closing body is a shutter curtain that moves up and down the building shutter, and the shutter curtain is closed from the hard part and the hard part. When including the soft portion disposed on the side, the soft portion can be a flexible sheet that forms the lower portion of the shutter curtain.

  In each of the present inventions described above, when the opening / closing body is a shutter curtain of a building shutter, and the soft part is included as a constituent member of the shutter curtain, the soft part is each a flexible film as described above. However, the present invention is not limited thereto, and may be an elastic member made of a porous material such as rubber or sponge, and the shutter for the building to which these are applied is not in the vertical direction in the shutter curtain opening and closing directions. In the case of the horizontal direction or the vertical direction, the closing direction may be the upward direction instead of the downward direction. Further, when the flexible portion is a flexible sheet, the sheet may be formed in a bag shape, and an elastic member such as a spring may be accommodated therein.

  Further, in the present invention, when the opening / closing body is a shutter curtain for a building shutter, the building shutter is used for any application such as a window shutter, a doorway shutter for a store, a garage shutter, a disaster prevention shutter, etc. The structure and type of the shutter may be a slat type by a plurality of slats, a panel type by a single or a plurality of panels, a pipe type by a plurality of pipes connected by links, etc. It can be applied to any type of shutter, such as a retractable retractable shutter, a panel separating and retractable shutter, and a sliding-type overhead door shutter.

  When the present invention is applied to a shutter for disaster prevention and a flexible sheet as a soft part is used for a shutter curtain which is an opening / closing body of the shutter for disaster prevention, the flexible sheet has fire resistance and smoke resistance. Is required. For this reason, for example, the flexible sheet may be formed by coating a fireproof coating material such as a fireproof paint on a nonflammable, fireproof fabric such as silica cloth, glass cloth, or wire mesh.

  When the present invention is applied to a shutter for a building other than a shutter for disaster prevention, the flexible sheet may be made of a synthetic resin such as vinyl chloride or polyester, a natural material such as cotton or silk, or a wire mesh. Well, these blends may be used.

  The present invention can also be applied to an opening / closing body other than a building shutter, for example, a sliding door, a movable partition, a hinged door, etc., and the opening / closing direction of the opening / closing body is the vertical direction, the left / right direction, the horizontal direction, and the rotational direction. Either may be sufficient.

  When these open / close bodies have a hard part and a soft part, the hard part may be made of metal, synthetic resin, wood, ceramic, or a composite of these, and the soft part is flexible. An elastic member made of a porous material such as an adhesive sheet, rubber or sponge may be used. When the flexible part is a flexible sheet, the sheet may be formed into a bag shape and an elastic member such as a spring may be accommodated therein.

  Furthermore, the part to be blocked that is opened and closed by the opening / closing body is determined according to the type and use of the opening / closing body, and may be, for example, an entrance / exit, a window, an emergency exit, a passage, a common gate, or the like.

  The opening / closing body device may be an automatic driving type or a non-automatic driving type that moves the opening / closing body manually or by its own weight.

  In the present invention, when the opening / closing body including the shutter curtain of the building shutter includes a hard part and a soft part, the soft part or the like may be attached to the hard part or the like by a retrofitting operation. According to this, the present invention can be applied to an existing opening / closing body device.

  More specifically, when the opening / closing body is a shutter curtain for a building shutter, a flexible sheet as a soft part may be attached to a seat plate of an existing shutter curtain as a hard part. Alternatively, the existing shutter curtain slat connecting body and the seat plate corresponding to the height dimension of the flexible sheet may be removed, and a flexible sheet may be attached instead.

  In the present invention described above, when a flexible sheet as a soft part is provided on the opening / closing body, all or part of the flexible sheet may be transparent. According to this, it becomes possible to see the other side of the blocked part blocked by the opening / closing body through the transparent part of the flexible sheet, and when the opening / closing body device is a shutter for disaster prevention, evacuation in case of emergency such as a fire Effective.

  According to the present invention, when a blocked part such as a doorway is closed with an opening / closing body such as a shutter curtain of a building shutter, even if an object exists in the blocked part, damage to the object and the opening / closing body can be prevented. The effect is obtained.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 is a front view of a disaster prevention shutter arranged in a disaster prevention section of a building, and shows a ceiling 1 and a floor 2 in section. This shutter for disaster prevention has a shutter curtain 5 that opens and closes an entrance / exit 4 that is a blocked portion surrounded by a ceiling 1, a floor 2, and left and right walls 3. The shutter curtain 5 is attached to left and right guide rails 6. The doorway 4 is closed when the lower end of the shutter curtain 5 comes into contact with the floor surface 7 that is guided and moves up and down and forms the lower edge of the doorway 4.

  Normally, the shutter curtain 5 is wound around a winding unit 8 disposed inside the ceiling 1, and the winding unit 8 is used for winding and unwinding the shutter curtain 5 from the winding unit 8. An opening / closing machine 9 is connected via a driving force transmission means such as a sprocket or a chain, and the opening / closing machine 9 includes a motor 10 and a brake 11. When the motor 10 is driven by a driving means such as a switch (not shown), the shutter curtain 5 is wound around the rotating winding unit 8 and is lifted to open the entrance / exit 4, and thereafter the rotation of the winding unit 8 is stopped. When the released brake 11 is released, the shutter curtain 5 is drawn out and lowered by its own weight while rotating the winding unit 8, thereby closing the doorway 4.

  An automatic closing device 12, a control device 13, and a manual closing device 14 are arranged adjacent to the switch 9, and a fire detection sensor 15 attached to the ceiling surface is connected to the automatic closing device 12 via the control device 13. The manual closing device 14 is mechanically connected to a manual machine 16 such as a lever disposed on the wall surface. When the sensor 15 detects smoke or heat due to the occurrence of a fire, the automatic closing device 12 releases the brake 11 via the control device 13 by a signal from the sensor 15, and when the manual machine 16 is manually operated, it is manually operated. The closing device 14 releases the brake 11, and as a result, the shutter curtain 5 is unwound from the winding unit 8 by its own weight as described above.

  A charger 17 and a counter 18 are also arranged in the vicinity of the switch 9, and the charger 17 is an emergency power source in the event of a fire, etc. The counter 18 is when the shutter curtain 5 is extended and lowered when the brake 11 is released. This is for detecting the rotational speed of the drive shaft of the motor 10 which is rotated by the rotation of the winding portion 8 being transmitted. When the brake 11 is released and the shutter curtain 5 starts to descend, the amount of descending is always detected by the counter 18. When the lower end of the shutter curtain 5 abuts against the floor surface 7 and the entrance 4 is closed, the counter 18 Based on the signal, the control device 13 automatically returns the brake 11, whereby the shutter curtain 5 stops at that position.

  The shutter curtain 5 according to the embodiment shown in FIG. 1 includes a slat connecting body 19 formed by connecting a large number of slats up and down, and a flexible structure that is suspended by being coupled to the lower end of the slat connecting body 19. And a sheet 20. Since each slat is made of metal, the slat connecting body 19 is a hard part, while the flexible sheet 20 forming the lower part of the shutter curtain 5 is a soft part. The sheet 20 is formed, for example, by applying a fireproof paint as a fireproof coating material to silica cloth or glass cloth.

  In the embodiment of FIG. 1, the upper end of the slat connecting body 19 is connected to the winding part 8 via a suspension member 21, and only the side part of the slat connecting body 19 is provided inside the left and right guide rails 6. Instead, the side portion of the flexible sheet 20 is also slidably inserted. In order to prevent the sheet 20 from coming out of the guide rail 6, the side portion of the sheet 20 is slidable inside the guide rail 6. You may provide the engaging member engaged with.

  As described above, when the brake 11 is released due to the occurrence of a fire and the shutter curtain 5 is drawn out and lowered from the winding unit 8 by its own weight, the amount of the descent becomes until the lower end of the flexible sheet 20 reaches the floor surface 7. The descent of the shutter curtain 5 is stopped by the automatic return of the brake 11 based on the signal from the counter 13. For this reason, in this embodiment, the stopper means for stopping the descent of the shutter curtain 5 which is an opening / closing body that opens and closes the doorway 4 is the brake 11.

  When the lower end of the flexible sheet 20 comes into contact with the floor surface 7, the entrance / exit 4 is blocked and the one area partitioned by the shutter curtain 5 and the other area are not in communication with each other. The shutter curtain 5 exhibits smoke and fire prevention functions.

  When an object having a height lower than the vertical dimension of the flexible sheet 20 exists on the floor surface 7 where the shutter curtain 5 descends, the flexible sheet 20 hits the object, Since the sheet 20 is flexible and deforms and the entire weight of the shutter curtain 5 does not act on the object, the object is not damaged by the shutter curtain 5 that descends by its own weight, and the shutter curtain 5 is also damaged by the reaction force from the object. Never do. Since the sheet 20 contacts the floor surface 7 while being deformed following the shape of the object, the entrance / exit 4 can be effectively blocked except for the object portion. Further, since the entire shutter curtain 5 is suspended from the winding unit 8 by the automatic return of the brake 11, the object can be easily taken out.

  In the embodiment of FIG. 2, a cut (slit) 22 extending in the left-right direction is formed in the approximate center of the flexible sheet 20. According to this, when an object hits the lower end of the sheet 20, the deformation of the sheet 20 is likely to occur, and the damage of the object and the shutter curtain are further effectively prevented.

  In the embodiment of FIG. 3, the flexible sheet 20 is formed of a plurality of flexible short-width sheets 23 arranged in parallel with an overlap margin in the width direction of the doorway 4. Only the upper ends of these sheets 23 are coupled to the slat connecting body 19. According to this embodiment, only the specific short-width sheet 23 that hits the object is bent and deformed, so that the flexible sheet 20 as a whole is more easily bent. Moreover, in this embodiment, the cut | interruption (slit) 24 is formed in the side and lower side of each short width sheet | seat 23, and also by this, the bending deformation of the short width sheet | seat 23 becomes easier to produce.

  The shutter curtain 5 of the embodiment of FIG. 4 is formed by joining a metal seat plate 25 to the lower end of the flexible sheet 20. That is, in this embodiment, the slat connecting body 19 is a first hard part, the flexible sheet 20 is a soft part, and the seat plate 25 is a second hard part. According to this embodiment, when the entrance / exit 4 is blocked by the shutter curtain 5, the seat plate 25 comes into contact with the floor surface 7, so that the shut-off performance of the entrance / exit 4 is improved, and the seat plate of the shutter curtain 5 being lowered is lowered. When an object whose height is lower than the total vertical dimension of the seat 20 and the seat plate 25 hits the seat 25, the flexible sheet 20 is bent and deformed. Since it is only the total weight, damage to the object and damage to the shutter curtain 5 can be prevented. When the object is taken out, the entire weight of the shutter curtain 5 excluding the seat plate 25 does not act on the object by the brake 11 which is a stopper means, so that the taking out can be easily performed.

  The seat plate 25 may have an inverted T-shaped cross section, an inverted L-shaped cross section like a seat plate of a normal shutter curtain, or may be a hollow or solid cross-sectional rectangle, a circular cross-section, a cross-sectional ellipse, etc. Further, for example, a bar-shaped seat plate may be accommodated in the lower end of the flexible sheet 20 rolled into a bag shape. Alternatively, the lower end of the flexible sheet 20 rolled into a bag shape may be filled with a metal ball, sand, or the like, and this portion may be used as the second hard portion.

  In the embodiment of FIG. 5, the seat plate 25 is formed by juxtaposing a plurality of short seat plates 26 divided in the width direction of the doorway 4. According to this, since the seat plate is not one continuous in the width direction of the entrance / exit 4, the flexible sheet 20 bends and deforms more effectively than the embodiment of FIG. In the case of the embodiment of FIG. 5, the adjacent short seat plates 26 may be separated from each other, or may be connected to each other by a connecting member 27 made of a hinge, a flexible synthetic resin, or the like.

  FIGS. 6 and 7 show a case where the seat plate 25 is formed by juxtaposing a plurality of short seat plates 28 and 29 which are divided and separated in the width direction of the entrance / exit 4. The members 29 and 29 may be arranged side by side in mesh with each other as shown in these drawings.

  Further, as shown in the embodiment of FIG. 8, when the seat plate 25 is formed by meshing the adjacent short-size seat plates 30, the portions 30 </ b> A of the short-size seat plates 30 are arranged in the thickness direction of the shutter curtain 5. May be overlapped. According to this, when the doorway 4 is blocked by the shutter curtain 5, it is possible to prevent smoke and flame from passing through the divided and separated portions of the seat plate 25 in the thickness direction of the shutter curtain 5.

  The shutter curtain 5 shown in the embodiment of FIG. 9 includes a gate-shaped slat connecting body 32 in which a part in the lower width direction, in the illustrated example, the lower width direction center is a notch 31, and only the upper end is a slat. A flexible sheet 33 coupled to the connecting body 32 and disposed in the notch 31, a seat plate 34 attached to the lower end of the slat connecting body 32 excluding the portion 31, and a lower end of the flexible sheet 33 It is formed with the seat plate 35 attached.

  That is, the shutter curtain 5 of this embodiment is formed by arranging the flexible sheet 33 that is a soft part at the end part on the shutter curtain closing side of only a part of the slat continuous body 32 that is a hard part. Therefore, both sides of the sheet 33 are hard portions formed by the slat connecting body 32. The shutter curtain 5 is suitable when the position of an object placed on the floor surface 7 is roughly determined depending on the use, type, etc. of the disaster prevention shutter, and a flexible sheet 33 is provided directly above the position. To.

  Further, according to this embodiment, since the flexible sheet 33 can be turned freely, even when the entrance / exit 4 is blocked by the shutter curtain 5 in an emergency such as a fire, the shutter can be turned by turning the sheet 33. An opening by the cutout 31 can be formed in the curtain 5, and this opening can be used as an outlet.

  In addition, as shown in FIG. 10 which is XX sectional drawing of FIG. 9, two sheets of flexible sheets 33 may be provided in the thickness direction of the shutter curtain 5, and one sheet may be sufficient. Further, the seat plate 35 at the lower end of the seat 33 may be omitted. Further, the notch 31 is made the same as the inner width dimension between the left and right guide rails 6, and only the narrow width portions of the slat coupling bodies on both sides of the flexible sheet 33 covered on the notch 31 are inside the guide rail 6. It may be inserted.

  Further, in the embodiment of FIG. 9, the stopper means for stopping the lowering of the shutter curtain 5 when the seat plate 35 at the lower end of the seat 33 comes into contact with the floor surface 7 may be the brake 11 described in FIG. A stopper for stopping the lowering of the shutter curtain 5 by bringing the seat plate 34 of the shutter curtain 5 into contact with the floor surface 7 when the seat plate 35 of the 33 comes into contact with the floor surface 7. It may be a means.

  FIG. 11 shows the shutter curtain 5 of the embodiment that can form an opening serving as an emergency exit as in FIG. The flexible sheet 20 suspended from the lower end of the slat connector 19 includes two short-width flexible sheets 36 arranged side by side in the width direction of the doorway 4 with an overlap margin, and a further shorter flexible sheet. 37. Since only the upper ends of these sheets 36 and 37 are connected to the slat connecting body 19, the sheet 37 can be freely turned from the sheet 36. By this turning, an opening for escape can be formed in the shutter curtain 5.

  The shutter curtain 5 of the embodiment of FIG. 12 has a plurality of short flexible sheets 39 that can be turned from other short flexible sheets 38 in the width direction of the entrance / exit 4. As shown in FIGS. 11 and 12, a seat plate 40, which is a hard part, may be attached to the lower ends of the sheets 36 to 39, or may be omitted. Further, two sheets 37 and 39 which can be turned freely may be provided in the thickness direction of the shutter curtain 5 in the figure.

  Further, only one of the sheets 36 and 37 in the embodiment of FIG. 11 and only one of the sheets 38 and 39 in the embodiment of FIG. 12 may be provided with a seat plate, respectively. You may provide the through-seat board which traverses the lower end of the sheet | seat freely turnable to several sheet | seat.

  FIG. 13 and FIG. 14 show the case of a panel-type disaster prevention shutter. In these embodiments, the hard part of the shutter curtain 45 that descends by its own weight is a panel series in which a plurality of metal panels 46 are arranged vertically. The structure 47 is formed.

  In the shutter curtain 45 of the embodiment of FIG. 13, the lowermost panel 46 is formed in a gate shape having a notch 48, and a plurality of short portions arranged side by side in the width direction of the entrance 4 in the notch 48 with overlap allowance. The dimensionally flexible sheets 49 are arranged such that only the upper ends thereof are coupled to the lowermost panel 46, and these sheets 49 are the soft portions of the shutter curtain 45. A seat plate 50 serving as a second hard portion when the panel connecting body 47 is used as the first hard portion is attached to the lower end of each sheet 49.

  In the shutter curtain 45 of the embodiment of FIG. 14, a plurality of short flexible sheets 51 arranged in parallel with an overlap margin in the width direction of the entrance 4 are attached to the lowermost panel 46 in a suspended state. Only the upper end of the sheet 51 is coupled to the lowermost panel 46, and the soft part below the shutter curtain 45 is formed by these sheets 51.

  13 and 14, in the left and right guide rails 52 for guiding the vertical movement of the shutter curtain 45, the seat plate 50 in FIG. 13 and the lower end of the seat 51 in FIG. A stopper member 54 is provided to stop the lowering of the shutter curtain 45 when the protrusion 53 protruding from the side of the shutter curtain 45 comes into contact with the stopper 53. It is the stopper means in these embodiments.

  In the embodiment of FIG. 13, when the lower ends of both ends of the sheet 49 in the lowermost panel 46 reach the floor surface 7, the stopper 45 is stopped by stopping the lowering of the shutter 45 at both ends. It is good also as this both ends.

  In these panel-type disaster prevention shutters, when the lower ends of the seat plate 50 and the seat 51 come into contact with the floor surface 7, the entrance / exit 4 is blocked by the shutter curtain 45, and the shutter curtain 45 being lowered exists on the floor surface 7. When the object hits the object, the sheet 49, 51 is bent and deformed to prevent the object and the shutter curtain 45 from being damaged.

  Further, since the sheets 49 and 51 can be turned freely, an opening serving as an outlet can be formed in the shutter curtain 45 by the turning. 13 may be omitted, and a seat plate may be attached to the lower end of the seat 51 in FIG.

  Further, as in the embodiment of FIGS. 11, 12, 13, and 14, in a shutter curtain provided with a sheet that can be freely turned from another sheet, the seat plates attached to these sheets or these Provide magnets between sheets or between seats and seats attached to other seats adjacent to this sheet, and use these magnets to ensure airtightness between seats and between sheets except when turning sheets. May be.

  In the case of the embodiment of FIG. 9, in the case of the embodiment of FIG. 13, the both sides of the sheet 33 arranged in the notch 31 and the portions of the slat connecting body 32 corresponding to these both sides are provided. Are provided with magnets on the outer sides of the two sheets 49 at both ends of the plurality of sheets 49 arranged in the notch 48 and on the side of the panel 46 corresponding to these sides. May be.

  Further, in the embodiment of FIG. 9, such a magnet is connected to the both ends of the seat plate 35 of the seat 33 and the end of the seat plate 34 of the slat connecting body 32 corresponding to these both ends. When the seat plate 34 is not attached to the installation body 32, the seat plate 35 is attached to the seat 33 at both ends of the seat plate 35 of the seat 33 and the portions of the slat connecting body 32 corresponding to the both ends. May be provided at both ends of the lower end of the seat 33 and ends of the seat plate 34 of the slat connecting body 32 corresponding to both ends of these lower ends.

  FIG. 15 shows an embodiment in which the opening / closing body is a sliding door 55. The sliding door 55 moves left and right manually or by an automatic driving device (not shown) along the upper frame 56 and the lower frame 57 serving as guide rails, and opens and closes the entrance 58. The main body 59 of the sliding door 55 is a hard portion made of metal or the like, and an elastic member 60 made of rubber or the like as a soft portion is attached to an end of the main body 59 on the closing side. When the sliding door 55 is used for disaster prevention, the elastic member 60 may be made of, for example, a synthetic resin having heat resistance and fire resistance. A stopper member 61 protrudes downward from the upper frame 56, and a protrusion 62 protrudes upward from the upper end of the sliding door 55 on the open side.

  When the elastic member 60 comes into contact with the vertical frame 63 forming the right edge of the entrance / exit 58 in the drawing, the projection 62 hits the stopper member 61 and stops further sliding door 55 movement. For this reason, in this embodiment, the stopper member 61 and the protrusion 62 are constituent members of the stopper means.

  When the closing movement of the sliding door 55 is stopped by the stopper means, the elastic member 60 comes into contact with the vertical frame 63, so that the shut-off property of the entrance / exit 58 is ensured. Further, when the sliding door 55 is closed and moved when an object is present at the entrance / exit 58, the impact of the collision is mitigated because the elastic member 60 hits the object, and the damage to the object and the sliding door 55 are prevented.

  In the embodiment of FIG. 15, a through-hole 64 is formed in the main body 59 of the sliding door 55, and a non-flammable and fire-resistant flexible sheet 65 in which only the upper end is coupled to the main body 59 is freely turned. Has been placed. For this reason, in this embodiment, the through-hole 64 of the sliding door 55 for disaster prevention which blocked the entrance 58 can be made into an exit by turning the sheet | seat 65 at the time of a fire etc.

  Although not shown in the drawings, the elastic member 60 is not attached to the entire length of the closed end of the main body 59, but a cutout is formed at the closed end of the main body 59 except for the upper part. The elastic member 60 is attached only to the notch, and the closing movement of the sliding door 55 is stopped when the upper part of the main body 59 not cut out contacts the vertical frame 63 when the elastic member 60 contacts the vertical frame 63. You may do it. The stopper means in this case is the upper part of the main body 59 that abuts the vertical frame 63.

  FIG. 16 shows a case where the opening / closing body is a hinged door 75. From the upper end of the hinged door 75 that opens and closes the doorway 77 by turning it manually or with an automatic driving device (not shown) around the hinge 76, it contacts the abutment 79 of the upper frame 78 that forms the upper edge of the doorway 77. A protrusion 80 is provided in contact with the hinged door 75 so as to stop further closing rotation. Further, the hinged door 75 is an elastic body serving as a soft portion fixed to the closed end of the main body 81 as shown in FIG. 17 which is a cross-sectional view taken along the line XVII-XVII in FIG. Member 82. When the elastic member 82 comes into contact with the vertical frame 83 forming the edge of the side of the entrance / exit 77 as shown in FIG. Stop turning. For this reason, the stopper means of this embodiment consists of a contact portion 79 and a protrusion 80.

  Also in this embodiment, when the elastic member 82 comes into contact with the vertical frame 83, the shut-off performance of the entrance / exit 77 is ensured, and when the hinged door 75 during the closing rotation hits an object existing at the entrance / exit 77, the impact is generated. Is relaxed by the elastic member 82 that the object hits, and damage to the object and the door 75 are prevented.

  In addition, when the hinged door 75 is for disaster prevention, in order to use the through-hole 84 formed in the main body 81 as an outlet, the non-flammable and fire-resistant flexible sheet 85 is disposed freely at the through-hole 84. May be.

  Each embodiment described below is a case where the opening / closing body is a shutter curtain of a building shutter including a disaster prevention shutter again.

  In the embodiment shown in FIGS. 18 and 19, the shutter curtain 95 that is an opening / closing body that opens and closes the doorway by moving up and down includes a slat continuous body 96 that is a hard portion, and the slat continuous body 96. And a movable body 97 attached to the lower end. The movable body 97 includes an immovable member 97A fixed to the slat connecting body 96, and a rotating member 97B connected to the immovable member 97A by a hinge 98 so as to be rotatable in the same vertical direction as the moving direction of the shutter curtain 95. Consists of. A locking member 99 that locks the rotating member 97B when the shutter curtain 95 is wound on the winding unit 8 of FIG. 1 is disposed on the ceiling.

  This locking member 99 is connected to a driving body 100 by a solenoid or the like that is actuated by a signal from the control device 13 when a fire occurrence is detected by the sensor 15 of FIG. 1, and the locking member 99 is driven by a fire occurrence. In order to release the lock of the rotating member 97B by being retracted at 100, the shutter curtain 95 is drawn out by its own weight from the winding unit 8 with the release of the brake 11 in FIG. When the lower end of 97B reaches an amount that contacts the floor surface 7, the brake 11 is automatically returned by the signal from the counter 18 in FIG. 1, and the descent of the shutter curtain 95 is stopped. For this reason, in this embodiment, the stopper means that stops the closing movement of the shutter curtain 95 when the movable body 97 reaches the floor surface 7 is the brake 11.

  When the rotation member 97B comes into contact with the floor surface 7, the shutter curtain 95 secures the shut-off property of the doorway opened and closed by the shutter curtain 95, and the shutter curtain 95 being lowered exists on the floor surface 7. When the object hits the object, the rotating member 97B that contacts the object rotates upward as indicated by a two-dot chain line in FIG. 19, so that the impact at this time can be mitigated, and the object and the shutter curtain 95 can be damaged. Can be prevented. Further, when the height of the object is smaller than the vertical dimension of the rotation member 97B in FIG. 19, the entire weight of the shutter curtain 95 excluding the weight of the rotation member 97B acts on the object by the brake 11 as the stopper means. Therefore, the object can be easily taken out.

  In addition, when the rotating member 97B is naturally rotated by its own weight around the hinge 98, the rotating member 97B is not moved as shown in FIG. 19 due to the shape of the end of the rotating member 97B on the stationary member 97A side. If the bending angle is set with respect to 97A, the rotating member 97B can be reliably rotated to the two-dot chain line by hitting the object. Further, the stopper means may be a stopper member 101 provided in the middle of the guide rail 6 as shown in FIG. 20, or a bar member 102 erected from the floor surface 7 inside the guide rail 6 as shown in FIG. .

  Moreover, the stopper means by the stopper member 101 of FIG. 20 and the stopper means by the bar member 102 of FIG. 21 can also be applied to the building shutter according to the embodiment of FIGS.

  The shutter curtain 95 according to the embodiment of FIGS. 22 and 23 is formed including a slat connecting body 96 and a movable body 97 as in the embodiments of FIGS. 18 and 19. The body 97 has a first rotating member 97C whose upper end is connected to the slat connecting body 96 by a hinge 103 so as to be vertically rotatable, and an upper end that is connected to the first rotating member 97C by a hinge 104 so as to be vertically rotatable. The second rotating member 97D, the slat connecting body 96, and the second rotating member 97D, and the spring 105 that pulls the weight of the first and second rotating members 97C and 97D upward. The spring force of the spring 105 is smaller than the total weight of the first and second rotating members 97C and 97D.

  Also in this embodiment, the second rotating member 97D that is locked to the locking member 99 on the ceiling is detached from the locking member 99 due to the occurrence of a fire, and the shutter curtain 95 is drawn out by its own weight from the winding unit 8 in FIG. When the lower end of the second rotating member 97D comes into contact with the floor surface 7 as shown in FIG. 23, the shutter curtain 95 is stopped by the stopper means of the brake 11 of FIG. 1, the stopper member 101 of FIG. 20, or the bar member 102 of FIG. Any further descent is stopped. For this reason, this embodiment can also obtain the same effect as the embodiment of FIGS.

  In particular, in this embodiment, the vertical dimension of the movable body 97 in FIG. 23 is increased so as to cope with the case where the height of the object existing on the floor surface 7 is large. Therefore, the weight of the movable body 97 is increased. Even if it becomes larger, the weight of the movable body 97 is pulled upward by the spring 105, so that when the movable body 97 hits the object, the entire weight of the movable body 97 does not act on the object. Since only a part of the weight of the body 97 acts on the object, it is possible to easily take out the object.

  In the embodiment of FIGS. 18 and 19 and the embodiment of FIGS. 22 and 23, when the shutter curtain 95 is used for disaster prevention, smoke and flame pass through the shutter curtain 95 at the hinges 98, 103, and 104. In order to prevent this, a non-flammable and fire-resistant flexible sheet may be covered from the lower end of the slat connecting body 96 to the entire movable body 97.

  The shutter curtain 95 according to the embodiment of FIGS. 24 and 25 is also formed including a slat continuous body 96 and a movable body 97. The movable body 97 is a hollow box member 97E, and this box member A horizontal locking portion 106 formed at the lower end of the slat connecting body 96 is inserted inside 97E. For this reason, the box member 97 </ b> E can move up and down with respect to the slat continuous body 96. At the normal time when the shutter curtain 95 is wound around the winding portion 8 of FIG. 1, the box member 97E has a locking portion 106 locked to the inner upper surface of the box member 97E as shown in FIG. Even when the shutter curtain 95 is pulled out from the winding unit 8 by its own weight and descends due to the occurrence of a fire, the box member 97E is lowered and the box member 97E is lowered. 1, the descent of the shutter curtain 95 is stopped by the stopper means of the brake 11 of FIG. 1, the stopper 101 of FIG. 20 or the bar member 102 of FIG. 21.

  In this embodiment, the box member 97E comes into contact with the floor surface 7 to ensure the shut-off performance of the entrance / exit that is opened and closed by the shutter curtain 95, and the shutter curtain 95 that is descending to the object on the floor surface 7 When hit, the box member 97E rises relative to the slat connecting body 96, so that the entire weight of the shutter curtain 95 does not act on the object. For this reason, damage to the object and damage to the shutter curtain 95 can be prevented, and the object can be easily taken out. In addition, it becomes possible to deal with a large object by increasing the vertical dimension of the box member 97E.

  In the embodiment shown in FIGS. 1 to 14 and the embodiment shown in FIGS. 18 to 25 described above, the stopper means for stopping the lowering of the shutter curtain further includes the winding unit 8 and the shutter curtain shown in FIG. And the suspension curtain 21 may be supported by hanging the shutter curtain from the winding unit 8 in an equilibrium state at the end of the lowering of the shutter curtain.

  The shutter curtain 115 of the embodiment of FIGS. 26 and 27 includes a slat continuous body 116, a seat plate 117 coupled to the lower end of the slat continuous body 116, and an upper end coupled to the seat plate 117. The flexible sheet 118 is formed. For this reason, in this embodiment, the hard part of the shutter curtain 115 is formed by the slat connecting body 116 and the seat plate 117, and the soft part below the shutter curtain 115 is formed by the sheet 118. When the shutter curtain 115 has a disaster prevention specification, the sheet 118 is made incombustible and fireproof. In this embodiment, there are three sheets 118 in the thickness direction of the shutter curtain 115, and one sheet at the center of the two sheets on both sides opens and closes in the width direction of the doorway that is opened and closed by the shutter curtain 115. By opening the two sheets on both sides, an opening as an exit port can be formed in the shutter curtain 115 in the event of an emergency such as a fire.

  In this embodiment, the shutter curtain 115 wound around the winding unit 8 in FIG. 1 is self-weighted when the occurrence of fire is detected by the sensor 15 in FIG. 1 and the brake 11 in FIG. 1 is released. When the counter 18 in FIG. 1 detects that the lowering amount of the sheet 118 reaches the floor surface 7 as shown in FIG. 26, the shutter 11 is automatically restored. The descent of the curtain 115 stops. Thereafter, when a certain period of time has elapsed, the brake 11 is released again by the timer of the control device 13 in FIG. 1, so that the shutter curtain 115 descends again by its own weight, and this descending amount falls as shown in FIG. When the seat plate 117 reaches the floor surface 7 through the deformed seat 118, the descent of the shutter curtain 115 stops. When the descent is stopped, the shutter curtain 115 may or may not be unwound at the winding unit 8.

  According to this embodiment, when the shutter curtain 115 is in the state shown in FIG. 26, it is possible to ensure the shut-off performance of the door that is subsequently opened and closed by the shutter curtain 115 and the upper and lower sides of the seat 118 until the state shown in FIG. Even if the shutter curtain 115 hits an object on the floor surface 7 whose height is lower than the dimension, the sheet 118 is bent and deformed, and the entire weight of the shutter curtain 115 does not act on the object. Damage can be prevented and the shutter curtain 115 is suspended from the brake 11 as shown in FIG. 26, so that the object can be easily taken out.

  In addition, since the shutter curtain 115 temporarily stops in the state of FIG. 26 and then descends again to the state of FIG. 27, the seat plate 117 comes into contact with the floor surface 7 through the deformed seat 118. For this reason, after this, the entrance / exit can be reliably blocked by the seat plate 117.

  In this embodiment, in order to stop further lowering of the shutter curtain 115 when the shutter curtain 115 is in the state of FIG. 27, when the shutter curtain 115 is in the state of FIG. It can also be realized by bringing the suspension member 21 of FIG. 1 that connects the winding unit 8 and the slat connecting body 116 shown in FIG.

  In order to change the shutter curtain 115 from the state shown in FIG. 26 to the state shown in FIG. 27 after being temporarily stopped, the configuration shown in FIGS. 28 and 29 may be employed.

  In FIG. 28, the leading end of the suspension member 21 is coupled to the winding unit 8 with a coupling tool 120 such as a bolt or a rivet, and the middle of the suspension member 21 is coupled to the winding unit 8 with a thermal fuse 121. The unit 8 is provided with a fuse sensor (not shown) that detects melting of the thermal fuse. FIG. 28 shows a state in which the shutter curtain 115 is drawn out by its own weight from the winding unit 8 by the release of the brake 11 in FIG. In the state of FIG. 26, when the thermal fuse 121 is melted due to the expansion of the fire, this is detected by the fuse sensor, the brake 11 is released again by a signal from this sensor, and then the shutter until the suspension member 21 is fully extended. The curtain 115 is lowered by its own weight from the winding unit 8 and enters the state shown in FIG.

  In the case of this embodiment, the thermal fuse 121 may be disposed at a location different from the suspension member 21 and not used for coupling the suspension member 21 to the winding unit 8. A temperature sensor that detects that the temperature around the disaster prevention shutter has reached a certain value due to the expansion of the fire is not used, and the brake 11 is released by a signal from this temperature sensor. Thus, the shutter curtain 115 may be changed from the state of FIG. 26 to the state of FIG.

  In FIG. 29, a groove 122 extending in the circumferential direction is formed in the winding portion 8, and a coupling tool 120 that joins the end of the suspension member 21 to the winding portion 8 is slidably inserted into the groove 122. The thermal fuse 123 arranged in the groove 122 prevents the coupler 120 from sliding. FIG. 29 shows a state in which the shutter curtain 115 is drawn out by its own weight from the winding unit 8 by the release of the brake 11 in FIG. In the state of FIG. 26, when the thermal fuse 123 melts due to the expansion of the fire, the coupler 120 slides to the end of the groove 122 due to the weight of the shutter curtain 115, and the suspension member 21 and the shutter curtain 115 stop at that position. The state shown in FIG. 27 is obtained.

  According to this embodiment, it is not necessary to make the winding portion 8 rotatable by releasing the brake 11 in order to obtain the state of FIGS.

  The thermal fuse is not arranged in the winding part 8 as described above, but is arranged on a guide rail that guides the vertical movement of the shutter curtain 115, and the shutter curtain 115 descends once stopped by being locked by the thermal fuse. May begin with melting of the thermal fuse.

  Further, temporarily stopping the descent of the shutter curtain as described above can also be implemented in the embodiment of the shutter curtain 95 provided with the movable body 97 by the box member 97E of FIGS.

  Specifically, when the box member 97E reaches the floor surface 7 and the shutter curtain 95 enters the state shown in FIG. 25, the counter of FIG. The descent of the shutter curtain 95 is stopped by the brake 11 that automatically returns based on the signal from 18. Thereafter, as in the embodiment of FIGS. 26 and 27, when a predetermined time has elapsed, the brake 11 is released again by the timer of the control device 13 of FIG. 1, so that the shutter curtain 95 is connected to the slat link except for the box member 97E. Only the installation body 96 is lowered again by its own weight, and the horizontal locking portion 106 at the lower end of the slat connection body 96 falls to the inner bottom surface of the box member 97E to be in a two-dot chain line 106 ′.

  According to this embodiment, before the shutter curtain 95 is temporarily stopped, when the box member 97E hits an object existing at the doorway blocked by the shutter curtain 95, the box member 97E contacts the slat connecting body 96. Since the object is not damaged and the shutter curtain 95 is prevented from being damaged, the box member 97E is in contact with the floor surface 7 when the shutter curtain 95 is temporarily stopped. In addition, since only the weight of the box member 97E acts on the object while it is temporarily stopped, the object can be easily removed from the doorway by lifting only the box member 97E. be able to.

  In this embodiment, the slat connecting body 96 can be lowered again after being stopped by the mechanical structure shown in FIGS. 28 and 29, and the guide rail is heated as described above. This can also be realized by providing a fuse.

  Further, the movable body 97 provided on the shutter curtain 95 to be temporarily stopped is not only the movable body 97 by the box member 97E of FIGS. 24 and 25 but also a movable member 97A and a rotating member 97B of FIGS. The movable body 97 including the body 97 or the first rotating member 97C, the second rotating member 97D, and the spring 105 shown in FIGS.

  Therefore, the movable body 97 after the shutter curtain 95 has been temporarily stopped may be in contact with the floor surface 7 as it is, even if the shutter curtain 95 starts to descend thereafter, and remains in contact with the floor surface 7. As a whole, it may be deformed such as bent.

  The shutter curtain 125 of the embodiment of FIG. 30 is formed of a slat connecting body 126 and a seat plate 127. A friction member 128 having a predetermined length from the floor surface 7 is erected in the guide rail 6, and the friction member 128 is made of, for example, hard rubber. 1 is released due to the occurrence of a fire, and from this, the shutter curtain 125 is drawn out by its own weight from the winding unit 8 and the seat plate 127 reaches the height of the friction member 128 as shown in FIG. Since the shutter curtain 125 is lowered while the side surface of the seat plate 127 is in contact with the friction member 128, the friction member 128 serves as a speed reduction means 129 for reducing the lowering speed of the shutter curtain 125. Thereafter, the shutter curtain 125 decreases the speed. Then, the doorway 4 is lowered and the doorway 4 is shut off.

  For this reason, when an object lower than the height of the friction member 128 exists on the floor surface 7, the collision of the shutter curtain 125 with this object is performed at a low speed, and the object damage and the shutter curtain 125 damage are prevented. Is done.

  FIG. 31 shows another embodiment of the speed reducing means 129. In this embodiment, a spring 130 that is bent and deformed when the seat plate 127 abuts is disposed inside the guide rail 6. Since the shutter curtain 125 descends while compressing the spring 130, the spring 130 serves as a speed reducing means 129 that reduces the descending speed of the shutter curtain 125. The spring 130 may be attached to the lower surface of the seat plate 127 downward.

  32 and 33 show still another embodiment of the speed reducing means 129. A rack member 131 erected from the floor surface 7 is disposed inside the guide rail 6, and a pinion 132 is provided on the seat plate 127 so as to be rotatable about a shaft 133 that is non-rotatably attached to the seat plate 127. It has been. Further, as shown in FIG. 33, the spring 133 is wound around the shaft 133, one end of the spring 134 is coupled to the shaft 133, and the other end is coupled to the pinion 132. For this reason, when the shutter curtain 125 descends due to the occurrence of a fire and the seat plate 127 reaches the height of the rack member 131, the spring 134 starts to be wound by the rotation of the pinion 132 engaged with the rack member 131. For this reason, the descending speed of the shutter curtain 125 is reduced, and the speed reducing means 129 is formed by the rack member 131, the pinion 133, and the spring 134.

  In the embodiment shown in FIG. 31, the embodiment shown in FIGS. 32 and 33, the same action and effect as described in the embodiment shown in FIG. 30 can be obtained, and the springs 130 and 134 are accumulated by the lowering of the shutter curtain 125, Since the repulsive spring force is gradually accumulated, when taking out an object which is present on the floor surface 7 and hit the seat plate 127, the shutter curtain 125 can be lifted with a small force, so that the object can be easily taken out.

  32 and 33, the rack member 131 may be attached to the shutter curtain 125, and the pinion 132 may be disposed on the guide rail 6.

  The shutter curtain 135 of the embodiment of FIG. 34 is obtained by joining a flexible sheet 136 as a soft part in a suspended state to the lower end of a hard part composed of a slat continuous body 126 and a seat plate 127. Also in this embodiment, the speed reducing means 129 by the friction member 130 is used, and when the lower end of the sheet 136 comes into contact with the floor surface 7, the lowering speed of the shutter curtain 135 is lowered by the speed reducing means 129 and the sheet 136 is bent and deformed. Then, the shutter curtain 135 is lowered. For this reason, the shutter curtain 135 whose speed has been lowered is lowered while the entrance / exit 4 is always blocked by the sheet 136.

  In addition, the sheet | seat 136 shall have nonflammability and fire resistance, when making the shutter curtain 135 into a disaster prevention specification. Moreover, the speed reduction means 129 may be based on FIG. 31, FIG. 32, or FIG.

  INDUSTRIAL APPLICATION This invention can be utilized for the opening / closing body apparatus provided with the opening / closing body which opens and closes like the shutter for buildings provided with the shutter curtain.

It is the front view which showed the ceiling and floor in the cross section of the whole shutter for buildings which is an opening-closing body apparatus. It is a front view which shows embodiment which provided the cut | interruption in the flexible sheet | seat which is a soft part. It is a front view which shows embodiment which provided the other cut | interruption in the split type flexible sheet. It is a front view which shows embodiment which attached the seat board to the lower end of a flexible sheet | seat. It is a front view which shows embodiment which made the seat plate the division type. It is a front view which shows embodiment of another division type seat board. It is a front view which shows embodiment of another division type seat board. It is a front view which shows embodiment of another another split type seat board. It is a front view which shows embodiment which has arrange | positioned the flexible sheet | seat to the one part lower part of the slat continuous connection body which is a hard part. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is a front view which shows embodiment of the shutter curtain which can form the opening part for exit by the flexible sheet | seat which can be turned freely. It is a front view showing an embodiment of a shutter curtain having a plurality of flexible sheets that can be turned. It is a front view which shows embodiment of the shutter for buildings in which the shutter curtain became a panel type. It is a front view which shows embodiment of another type of panel-type building shutter. It is a front view which shows embodiment in case an opening-and-closing body is a sliding door. It is a front view which shows embodiment in case an opening-and-closing body is a hinged door. It is the XVII-XVII sectional view taken on the line of FIG. It is a sectional side view showing an embodiment in which a movable body is provided on a shutter curtain and showing the shutter curtain before being lowered. It is a sectional side view which shows the shutter curtain of FIG. 18 after falling. It is a front view which shows embodiment of the stopper means which stops the fall of a shutter curtain in embodiment of FIG. 18, FIG. It is a front view which shows embodiment of another stopper means. It is a figure similar to FIG. 18 which shows embodiment of another movable body. It is a figure similar to FIG. 19 in embodiment of FIG. FIG. 19 is a view similar to FIG. 18 showing another embodiment of the movable body. It is a figure similar to FIG. 19 in embodiment of FIG. It is a sectional side view showing an embodiment which stops descent of a shutter curtain once. FIG. 27 is a side sectional view showing the state after the shutter curtain is lowered again in the embodiment of FIG. 26. FIG. 28 is a side sectional view showing a structure for lowering the shutter curtain again in the embodiment of FIGS. 26 and 27. FIG. 29 is a side sectional view showing an embodiment having a structure different from that of FIG. 28. It is a front view which shows embodiment which reduces the descent | fall speed of a shutter curtain with a speed reduction means. It is a front view which shows embodiment of the other speed reduction means. It is a front view showing an embodiment of other speed reduction means. It is a front view which shows that the mainspring spring is provided in the pinion of FIG. It is a front view which shows embodiment which provided the flexible sheet | seat in embodiment of FIG.

Explanation of symbols

4,58,77 Entrance / exit which is a blocked part 5,45,95,115,125,135 Shutter curtain which is an opening / closing body 6,52 Guide rail 7 Floor 11 which is an edge of the blocked part 11 Brake which is a stopper means 19, 32, 96, 116, 126 Slat continuous body as a hard part 20, 33, 49, 51, 118, 136 Flexible sheet as a soft part 25, 37, 50 Seat plate 46 Panel 48 as a hard part Notch 53 Projection 54 Stopper member 55 Sliding door as opening / closing body 75 Opening door as opening / closing body 97 Movable body 101 Stopper member as stopper means 102 Bar member as stopper means 129 Speed reduction means

Claims (9)

A closing device for an opening / closing body that is disposed in the blocked portion, and that opens and closes the blocked portion in the vertical direction and moves the opening / closing body to be closed down,
The opening / closing body is formed to include a hard part and a soft part, and the soft part is disposed closer to the closing side than at least a part of the hard part,
The open / close body is guided by left and right guide rails to move up and down, and the open / close body includes a protrusion inside the guide rail, and the protrusion contacts the inside of the guide rail. A closing device for an opening / closing body, wherein a stopper member for stopping the lowering of the opening / closing body is disposed.   2. The opening / closing body closing device according to claim 1, wherein the protrusion protrudes outward in the width direction of the opening / closing body at a side portion of the opening / closing body. A closing device for an opening / closing body that is disposed in the blocked portion, and that opens and closes the blocked portion in the vertical direction and moves the opening / closing body to be closed down,
The opening / closing body is formed to include a hard part and a soft part, and the soft part is disposed closer to the closing side than at least a part of the hard part,
The opening / closing body is guided by left and right guide rails to move up and down, and a stopper member for stopping the opening / closing body from descending is disposed inside the guide rail. apparatus.   The closing device for an opening / closing body according to any one of claims 1 to 3, wherein the opening / closing body is disposed in the gate-shaped hard portion in which a part in a width direction of the lower portion is a notch, and the notch An opening / closing body closing device characterized by comprising the soft portion.   The closing device for an opening / closing body according to any one of claims 1 to 3, wherein the opening / closing body includes the hard portion and the soft portion arranged closer to the closing side than the entire hard portion. An opening / closing body closing device.   The opening / closing body closing device according to any one of claims 1 to 5, wherein a seat plate is attached to a lower end of the soft portion.   7. The opening / closing body closing device according to claim 6, wherein when the seat plate reaches the floor surface, the lowering of the opening / closing body is stopped by the stopper member.   The opening / closing body closing device according to any one of claims 1 to 5, wherein a seat plate is not attached to a lower end of the soft portion.   9. The opening / closing body closing device according to claim 8, wherein the lowering of the opening / closing body is stopped by the stopper member when the lower end of the soft portion reaches the floor surface.

Images