JP2003003773A - Opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable proper handling of an obstacle in rotational movement of a guide means. SOLUTION: An opening/closing means 14A is moved to close an opening. The guide means 15A, 16A, 17A and 18A are provided in such a manner as to be moved while rotating to sandwich the means 14A between front and rear parts over the opening. An obstacle-to-opening/closing detecting means 30A detects the presence of the obstacle on a movement path during a closing operation of the means 14A and outputs a detection signal thereof. Obstacle-to- guide detecting means 40-48 detect the presence of the obstacles on movement paths during the rotational movement of the guide means 15A, 16A, 17A and 18A and output their detection signals. A control means controls the operations of the means 14A and the guide means 15A, 16A, 17A and 18A according to the detection signals output from the means 30A and 40-48, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for closing an opening by moving an opening / closing member such as a shutter curtain installed in an opening of a structure body including a building, a factory, a warehouse or the like. Regarding

[0002]

2. Description of the Related Art Generally, an opening such as a passage in a building having a large floor area is automatically closed at the same time as a fire occurs to prevent the spread of fire or the spread of smoke when the fire occurs. Opening and closing members such as a fire-retardant shutter curtain, which are configured in 3), are installed together with pillars, walls, floors, ceilings, etc.
A switchgear is provided which operates to form a dimensionally enclosed space or fire compartment. In addition, there is one in which the opening is simply closed by an opening / closing member.

Recently, by making the guide rail rotatably movable, the guide rail is housed together with the shutter curtain, which is an opening / closing member, in the ceiling or the like, and normally the guide rail is not present in the opening. An opening / closing device has been proposed in which the guide rail is also extended and landed in accordance with the closing operation of the shutter curtain. An example of an opening / closing device in which such a guide rail is rotatably moved is disclosed in Japanese Patent Application Laid-Open No. 10-102947.
JP-A No. 11-22343 and the like. Further, there is one described in Japanese Patent Application No. 2001-109756 previously filed by the applicant of the present application.

[0004]

In the opening / closing device in which the guide rail is rotatably moved as described above, the guide rail is usually housed in the ceiling or the like, and the guide rail does not exist in the opening. Therefore, the guide rail does not hinder the passage of traffic and the floor area is not narrowed, which is preferable as an opening / closing device installed in a wide opening. However, in the case of the opening / closing device as described above, since the guide rail also rotates from the ceiling or the like, some obstacles may be present during the movement of the guide rail, similar to a curtain in a normal shutter. .

An object of the present invention is to provide an opening / closing device which can appropriately deal with an obstacle when the guide means is rotationally moved.

[0006]

An opening / closing device according to a first aspect of the present invention comprises an opening / closing device which moves to open and close an opening, and a guide device which is rotatably moved to sandwich the opening and closing device from the front and back. A guide obstacle sensing means for sensing the presence of an obstacle on the moving path of the guide means during the rotational movement. The opening and closing means
It is composed of an opening and closing member such as a shutter curtain that opens and closes an entrance and a window, or an opening such as an internal passage and a space in a structure such as a building, a house, a factory, and a warehouse. When the opening / closing means is a shutter curtain, the opening / closing means is housed in the upper part of an opening of a building or the like, and the shutter curtain descends via a lintel to close the opening. In addition to this, the opening / closing means may be housed in the side portion of the opening and opened / closed by a horizontal pulling method, or may be housed in the lower portion of the opening and opened / closed by a rising method. Here, the opening / closing movement means movement only in the opening direction, only in the closing direction, and in both the opening and closing directions. In addition, opening means unwinding, sliding movement, spreading, etc., and means forward movement of the opening / closing member, and closing means winding up
Including contraction, folding, etc., means retraction of the opening / closing body. When the opening is large, it is often difficult to close the opening with one opening / closing means. Therefore, the large opening is closed by connecting or connecting a plurality of opening / closing means. At this time, a guide means is provided between the opening / closing means and the opening / closing means to divide the opening and guide each opening / closing means. The guide means in the present invention is usually housed in, for example, a ceiling portion above the opening, and is rotatably moved in accordance with the closing operation of the opening / closing means to divide the opening, and the opening / closing means is separated from both front and rear sides. It is landed so as to be sandwiched. This guide means may be composed of one rail, or may be composed of two or more rails folded. The guide obstacle detecting means is for detecting the presence of an obstacle on the moving path of the guide means during the rotational movement, and is constituted by, for example, a tape switch provided on the side surface, the lower surface, the upper surface, etc. of the guide means. It When the guide obstacle detecting means detects an obstacle, it is possible to perform control such as executing the obstacle avoiding operation of the guide means in response to the obstacle.

According to a second aspect of the present invention, in the opening / closing device according to the first aspect, at least one of the guide means and the opening / closing means performs an obstacle avoiding operation when the guide obstacle sensing means senses an obstacle. And a control means for controlling as described above. The opening / closing device is one in which the shutter curtain closes after the guide rail rotates first, or conversely, the guide rail rotates and moves after the shutter curtain closes first, and the guide rail and shutter curtain operate almost at the same time. There are various things to do. In response to such various cases, the control means controls at least one of the guide means and the opening / closing means to perform an avoiding operation for the obstacle according to the detection result of the guide obstacle sensing means. Here, the obstacle avoidance operation means the following operation. When the descending direction is the closing direction, it means stopping on the spot, stopping after slightly ascending, repeating descending again after slightly ascending. The repetitive operation of the maximum descent includes a case of performing the operation a predetermined number of times, a predetermined time, or without limitation.

According to a third aspect of the present invention, there is provided an opening / closing device according to the first or second aspect, wherein the guide position detecting means for detecting the rotational movement position of the guide means and the guide obstacle detecting means detect an obstacle, and the rotation is performed. When the moving position satisfies a predetermined condition, at least one of the guide means and the opening / closing means is provided with control means for controlling so as not to perform the obstacle avoiding operation. The guide obstacle detecting means provided in the guide means may detect a non-obstacle as an obstacle before or immediately after starting the rotational movement, because the guide obstacle detecting means contact each other. Immediately before or after the guide means finishes landing due to the rotational movement, the guide obstacle sensing means may contact the floor or the like, so that a non-obstacle may be sensed as an obstacle. That is, the obstacle is detected by the guide obstacle detecting means before or immediately after the start of the rotational movement of the guide means, and immediately before or after the end of landing of the guide means. Therefore, when the guide position detection means is provided and the rotational movement position of the guide position detection means satisfies a predetermined condition (for example, when the rotational movement position of the guide means is immediately before or immediately after the start of rotational movement, or when the guide means is It is possible to judge that the guide means is not in the rotational movement immediately before the end of landing or after the end of landing. In such a case, the guide obstacle sensing means has detected the obstacle. However, at least one of the guide means and the opening / closing means does not perform the avoidance operation for the obstacle.

A switchgear according to claim 4 is the switchgear according to claim 1,
Or 3, the opening / closing obstacle sensing means for sensing the presence of an obstacle on the moving path of the opening / closing means during the opening / closing operation; and the guide if the opening / closing obstacle sensing means senses an obstacle. At least one of the means and the opening / closing means includes a control means for controlling to perform an obstacle avoiding operation. The opening / closing obstacle sensing means senses the presence of an obstacle on the moving path during the opening / closing operation of the opening / closing means, and is constituted by, for example, a seat plate switch provided in the opening / closing means. Therefore, when the opening / closing obstacle sensing means senses an obstacle, at least one of the guide means and the opening / closing means performs an avoiding operation for the obstacle accordingly.

The switchgear according to claim 5 is the switchgear according to claims 1 and 2.
Or 3, an opening / closing obstacle sensing means for sensing the presence of an obstacle on a moving path of the opening / closing means, an opening / closing position detecting means for detecting a moving position of the opening / closing means, and the opening / closing obstacle. When the object sensing means senses an obstacle and the movement position satisfies a predetermined condition, at least one of the guide means and the opening / closing means controls the obstacle avoiding operation. Be prepared. The opening / closing obstacle sensing means senses the presence of an obstacle on the movement path of the opening / closing means during the opening / closing operation, and immediately before the closing operation is completed, the opening / closing obstacle sensing means makes contact with the floor or the like. Because it does, it senses the floor as an obstacle. That is, the obstacle is detected by the opening / closing obstacle sensing means immediately before or after the closing of the opening / closing means. Therefore, when the opening / closing position detecting means is provided and the moving position of the opening / closing position detecting means satisfies a predetermined condition (for example, when the moving position of the opening / closing means is immediately before closing or after closing), the opening / closing means is opened. Since it can be determined that the open / close obstacle is already closed, in such a case, even if the opening / closing obstacle sensing means detects the obstacle, at least one of the guide means and the opening / closing means does not perform the avoidance operation for the obstacle. did. Not performing the avoiding operation in this case means performing the same operation as the case where the obstacle avoiding function is not provided as a result. Specifically, the obstacle sensing function itself is disabled to prevent the obstacle sensing function itself, or the obstacle sensing itself is performed, and the sensing result (sensing signal) is notified to the control means. However, the control means side executes a process of ignoring the notification or bypassing the obstacle avoiding process. On the other hand, when the moving position of the opening / closing position detecting means does not satisfy the predetermined condition (for example, when the moving position of the opening / closing means is not immediately before closing or after closing), it is determined that the opening / closing means is in the closing operation. Therefore, in such a case, at least one of the guide means and the opening / closing means performs the avoiding operation for the obstacle when the opening / closing obstacle detecting means detects the obstacle. It should be noted that the control means of the opening / closing device is assumed in advance such as when it comes into contact with the floor or the like when fully closed, or when it comes into contact with a fixed object (for example, a locking portion provided on the fixed rail side) during movement. Distinguishing the abutments that are being made from the obstacles that may not be,
There is an effect that an appropriate operation can be performed with respect to the movement of the guide means (opening / closing means). Structural reason of the guide means (for example, near the link mechanism of the folded portion)
For some reason due to the causal relationship between the guide means and the opening / closing means, when the guide means reaches a pre-determined predetermined state at an intermediate position during the rotational movement, for example, an obstacle is detected momentarily. Can be. Such a case is also included in the concept of the abutting object that is assumed in advance. In addition,
The opening / closing position detecting means and the guide position detecting means may be independently configured to detect only the moving position of the opening / closing means or to detect only the rotational movement position of the guide means, but the opening / closing means and the guide means are also included. And are configured to interlock with each other in a causal relationship, by detecting one of the positions using the opening / closing position detecting means or the guide position detecting means, the other position is detected. May be. That is, only the opening / closing position detecting means may be provided, and the rotational movement position of the guide means may be detected based on the moving position of the opening / closing means detected by the means. Conversely, only the guide position detecting means may be provided. The moving position of the opening / closing means may be detected based on the rotational movement position of the guide means detected thereby.

According to a sixth aspect of the present invention, there is provided an opening / closing device according to the second or third aspect, wherein the opening / closing obstacle sensing means senses the presence of an obstacle on a moving path during the opening / closing operation of the opening / closing means, and the opening / closing means. When the opening / closing position detecting means for detecting the moving position of the object and the opening / closing obstacle detecting means detect an obstacle and both the rotational moving position and the moving position satisfy a predetermined condition, the guide means and At least one of the opening / closing means includes a control means for controlling so as not to perform the obstacle avoiding operation. When the moving position of the opening / closing position detecting means satisfies a predetermined condition (for example, when the moving position of the opening / closing means is immediately before closing or after closing), it can be determined that the opening / closing means is already closed. . Further, when the rotational movement position of the guide position detection means satisfies a predetermined condition (for example, when the rotational movement position of the guide means is immediately before or immediately after the rotational movement is started, or when the guide means is immediately before the end of landing or when the floor is landed). If it is after the end), it can be determined that the guide means is not rotating. Therefore, when both conditions are satisfied, at least one of the guide means and the opening / closing means does not perform the avoiding operation against the obstacle even if the opening / closing obstacle sensing means senses the obstacle. In addition, when the rotational movement position of the guide position detection means does not satisfy a predetermined condition (for example, when the rotational movement position of the guide means is not immediately before or immediately after the rotational movement is started, or when the guide means is immediately before the end of landing or the end of landing). If not later), it can be determined that the guide means is rotating. Further, when the moving position of the opening / closing position detecting means does not satisfy the predetermined condition (for example, when the moving position of the opening / closing means is not immediately before closing or after closing), it is determined that the opening / closing means is in the closing operation. it can. Therefore, when both conditions are not satisfied, at least one of the guide means and the opening / closing means performs the avoiding operation for the obstacle when the opening / closing obstacle sensing means senses the obstacle. In this case, it is preferable that both the guide means and the opening / closing means perform the avoidance operation.

According to a seventh aspect of the present invention, there is provided the opening / closing device according to the sixth aspect, wherein the control means detects both obstacles by the opening / closing obstacle sensing means and the guide obstacle sensing means. When both the positions satisfy a predetermined condition, it is recognized that both the opening / closing means and the guide means are in the fully closed state. This relates to a condition for determining whether or not the closing operation of the opening / closing means is completed, the landing of the guide means is completed, and the opening is completely closed. Normally, when the detection results are output from the guide position detecting means and the opening / closing position detecting means, it can be determined that the respective operations of the guide means and the opening / closing means have ended. However, the guide position detection means and the open / closed position detection means may erroneously output a signal for some reason. Therefore, even in such a case, misrecognition is made by adding whether or not both the opening / closing obstacle sensing means and the guide obstacle sensing means sense an obstacle to the determination condition of the fully closed state. Prevent
It is possible to more stably determine whether or not it is in the fully closed state.

According to an eighth aspect of the present invention, in the opening / closing device according to the first aspect, a plurality of the guide obstacle sensing means are provided, and the control means detects at least two of the guide obstacle sensing means. In this case, the guide means recognizes that the guide means is in a predetermined state. The guide means is usually housed in, for example, the ceiling above the opening, and is rotated according to the closing operation of the opening / closing means to divide the opening so that the opening / closing means is sandwiched from both front and rear sides. Be landed. This guide means may be composed of one rail or may be composed of two or more rails folded. A plurality of guide obstacle sensing means are provided in such guide means. For example, when the guide obstacle detecting means is provided on both side surfaces and the lower surface of one rail, these will detect obstacles on different moving paths of the guide means. Therefore, when both of the guide obstacle sensing means provided on the lower surface and the side surface sense the obstacle, it can be determined that the rotational movement of the guide means has ended. It can be determined that the state is a fully closed state. Further, when the two rails are folded, the guide obstacle sensing means provided on the opposite side surfaces both sense the obstacle. In such a case, the guide means is in a predetermined state. Can be judged to be in the fully open state. It is natural that at least two are in the sensing state at the same time at a given time, but this is not the only case, and two are not in the sensing state at the same time. It also includes that at least two are in a sensing state in a predetermined sequence or a predetermined sequence within a predetermined time.

According to a ninth aspect of the present invention, in the opening / closing apparatus according to the first aspect, when the control means starts the movement of the guide means at a predetermined position, the guide obstacle detection means sets the obstacle detection state to the obstacle detection state. Accordingly, the operating state of the guide obstacle sensing means is determined. In the case of the guide means in which the two rails are folded, when the guide means is in the position immediately before the descent starts, the guide obstacle sensing means provided on the opposite side surfaces of the guide means are in contact with each other. It will detect obstacles. Therefore, if the guide obstacle sensing means is in the sensing state immediately before the descent starts, it can be determined that the guide obstacle sensing means is operating normally, and if not, it can be determined that it is abnormal. Furthermore, when a predetermined time has elapsed after the guide means started to descend, the guide obstacle sensing means changes from the contact state to the non-contact state, and thus the obstacle is no longer sensed. Therefore, if the guide obstacle sensing means changes from the sensing state to the non-sensing state immediately after the descent starts, it can be determined that the guide obstacle sensing means is operating normally, and if not, it is abnormal. You can judge. In addition, when it is known that the guide member comes into contact with the locking member or the like while it is descending, it is determined whether the guide obstacle sensing device is in the sensing state by contacting the locking member at that position. Thus, the operating state of the guide obstacle sensing means can be determined. As described above, the guide means is in the middle of rotational movement due to the structural reason of the guide means (for example, the vicinity of the link mechanism of the folded portion) and the structural causal relationship between the guide means and the opening / closing means (presence of the locking member). When a predetermined state is assumed in the middle position of,
For example, there may be an obstacle sensing state momentarily.
The operating state of the guide obstacle sensing means can be determined based on whether or not such a state has occurred. When it is confirmed that the guide obstacle sensing means is not operating normally, it may be notified by using some kind of notification means.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A shutter device as an embodiment of an opening / closing device according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic view of a shutter device according to the present invention, and is a front view showing a state during a closing operation of a shutter curtain which is an opening / closing member as an opening / closing means. FIG. 2 is a front view showing a fully closed state of the shutter curtain of FIG. FIG. 3 is a side view of a part of the shutter device of FIG. 1 stored in the ceiling or the like, as viewed from the left side.
This shutter device is housed in the upper part of an opening such as a ceiling in a so-called folded state in which a guide rail as guide means is bent near the center so that both side surfaces are in close contact or in close contact with each other. In conjunction with the descending movement of the slat curtain made up of a number of strip-shaped slat members constituting the slat material, the slat curtain is sequentially descended and extended in the manner shown by the dotted line in FIG.
The guide rail as shown in FIG.

This shutter device comprises a beam 2 above the opening.
4 are provided side by side. One shutter device includes brackets 11A and 12A, an intermediate drum 13A,
The controller 50A, the winding shaft 51A, the motor 52A, the slat curtain 14A, and the movable guide rails 15A, 16A, 17A, 18A and the like are included. The other shutter device is the bracket 11B,
12B, the intermediate drum 13B, the controller 50B, the winding shaft 51B, the motor 52B, the slat curtain 14B, and the movable (rotary movement) type guide rail 15B.
16B, a fixed guide rail 17B, and the like. The controllers 50A and 50B, the take-up shafts 51A and 51B, and the motors 52A and 52B are shown only in FIG. 3, and are not shown in FIGS. 1 and 2. In addition, the shutter device itself may be provided with a door or slit through which evacuation or rescue activities can pass. In addition to the shutter device, the shutter device covers the housing portion such as the winding shaft and the slat curtain 14
It has an opening / closing device, an automatic closing device, a manual closing device, etc. for closing A and 14B while controlling the speed, but they are omitted here.

Brackets 11A, 12A, 11B, 12
B is attached to the side surface of the beam 24 between the columns 21 and 22 on both sides. The intermediate drum 13A and the winding shaft 51A are rotatably attached between the bracket 11A and the bracket 12A, and the intermediate drum 13B and the winding shaft 51B are rotatably attached between the bracket 11B and the bracket 12B. Slat curtain 14
A and 14B are attached to the winding shafts 51A and 51B, respectively.
Depending on the rotation of the, it can be wound up or unwound. The motors 52A and 52B stop the slat curtains 14A and 14B which are being closed, or wind the slat curtains 14A and 14B that have been closed by rotating the winding shaft 51. Instead of the motors 52A and 52B, a mechanism for manually winding may be provided. In this case,
A brake mechanism for stopping the slat curtains 14A, 14B that are being closed is provided on the winding shafts 51A, 51B.

Movable guide rails 15A and 16A,
Guide rails 17A, 18A and guide rails 15B,
16B has the same structure. The respective guide rails 15A, 16A, 17A, 18A, 15B, 16B are connected at their opposite ends rotatably about an axis. That is, the guide rails 15A and 16A, the guide rails 17A and 18A, the guide rails 15B and 16B.
Are linked together by a link structure. When the slat curtain 14A and the slat curtain 14B are wound around the winding shafts 51A and 51B and stored in the upper part of the opening, the guide rails 15A and 16A, the guide rails 17A and 18A, and the guide rails 15B and 16B.
Is stored in the upper portion of the opening in a folded state at the link portion. And the slat curtains 14A and 14B
Is lowered, two guide rails 15A and 16A and two guide rails 17A and 18 are interlocked with the operation.
The intersection angle formed by A and the guide rails 15B and 16B gradually increases and gradually decreases.

When the descent of the slat curtains 14A, 14B is completed, two guide rails 15A, 16A, guide rails 17A, 18A, guide rails 15B, 16B are provided.
Is substantially linear and is erected substantially vertically as shown in FIG. Although not shown in FIGS. 1 and 2, the guide rails 15A and 16A and the guide rails 17A and 18 are provided.
A, the guide rails 15B and 16B sandwich the slat curtains 14A and 14B from the front and rear, that is, the same guide rails are provided on both the front surface which is the front surface side and the rear surface which is the back surface of the slat curtain. The slat curtains 14A and 14B are sandwiched from the front and back sides, which are both front and back sides, and are rotatably moved along the front and back sides in conjunction with the operation of the slat curtains 14A and 14B. In addition, during storage, the guide rails 15A, 16
A, guide rails 17A, 18A, guide rail 15
Since B and 16B are folded so that their side surfaces are in close contact or substantially in close contact, the left side shutter device can accommodate two guide rails having an overall lateral (width direction) length. Any length will do. Further, in the case of the shutter device on the right side, the overall lateral (width direction) length may be a length that can accommodate one guide rail. Therefore, in addition to the opening having a long dimension in the horizontal direction (width direction) and the opening having the same dimension in the horizontal direction (width direction) and the vertical direction (height direction), like the shutter device on the right side, It can be installed even in an opening having a long length, that is, a long dimension in the height direction, and the shape of the opening is not restricted.

In the switchgear of FIGS. 1 and 2, the columns 21, 2 are
2, the ceiling 25, the slat curtains 14A and 14B, and the slab 20 form a fireproof compartment, so that the fire door 19 for evacuation is the guide rail 15 of the shutter device.
It is provided in contact with A and 16A. The fire door 19 is provided in a space formed by the pillar 21, the guide rails 15A and 16A, and the ceiling 25. Fire doors are classified into a normally closed type and a normally open type according to the structure of the building. The fire door 19 shown in this embodiment is of a normally open type, and normally the fire door is housed on the side surface of the pillar 21 or the like, and the closing operation of the slat curtains 14A, 14B and the guide rails 15A, The fire door is configured to be closed later or earlier without interlocking with the feeding operation of 16A. In the case of a normally open fire door, a passage for evacuation or the like that can pass through is secured by a subdoor provided separately in the closed fire door. In the case of a normally closed fire door, the fire door opens outward from the compartment, that is, in the passing direction, and is automatically closed by a door check or the like. Therefore, in the case of a normally closed fire door, the guide rails 15A, 1
6A is provided with a fixed type such as a guide rail 17B. As the fire door used in this embodiment,
Depending on the structure of the building, either a normally closed system or a normally open system may be used. Further, when the shutter curtain, which is the opening / closing means, is in the form of a sheet, a door or an opening (slit) through which evacuation passages can pass may be provided therein.

A guide rail 15 is provided on the side surface of the fire door 19.
A contact member such as a contact plate for contacting A and 16A is provided. Slat curtains 14A, 14B and guide rails 15A, 16A, 17A, 18A, 15B, 1
6B goes up and down via the lintel. The slat curtains 14A and 14B are the winding shaft 5.
The guide rail 1 is wound around 1A and 51B, respectively.
The state where 5A, 16A, 17A, 18A, 15B and 16B are folded and stored on the ceiling is a normal state. In this state, the lowermost seat plates of the slat curtains 14A and 14B are close to the side surfaces of the guide rails 15A, 17A and 15B and substantially face each other. Guide rails 16A, 18
The upper ends of A and 16B are rotatably coupled to brackets 11A, 12A and 11B provided on the beam 24,
The lower end portions of the guide rails 15A, 17A, 15B are rotatably coupled to the closed-side tip portions of the slat curtains 14A, 14B and the lateral portions in the width direction of the slat curtains 14A, 14B. The guide rails 16A, 1
The upper end portions of 8A and 16B may be directly or indirectly provided on the side surface, ceiling, or upper slab of the beam of the building, or may be attached to other members other than the bracket, such as a lintel, which constitute the shutter device. May be. When a fire occurs,
The shutter device responds to signals from a sensing device such as a smoke sensor or a heat sensor (not shown), and the slat curtains 14A, 14B and the guide rails 15A, 16A, 17.
A, 18A, 15B, 16B are automatically lowered and the pillar 2
The openings formed by 1, 22 and the ceiling 25 and the slab 20 are closed. The guide rails 15A, 16A,
The detailed configurations of 17A, 18A, 15B, and 16B are described in the previous application (Japanese Patent Application No. 2001-109756), and will be briefly described here.

FIGS. 4 and 5 are diagrams showing the detailed construction of the connecting portion between the foldable guide rail and the slat curtain shown in FIGS. 1 and 2, and FIG. 4 shows the guide rail 17A shown in FIG. It is the figure seen from the direction, and FIG. 5 is AA of FIG.
It is sectional drawing of a line. In FIG. 4, the slat curtain 14A
Is not shown. The guide rail 17A has two rail bodies 61 each having a rectangular cavity formed by stacking U-shaped long iron plates having a predetermined plate thickness,
It is constituted by 62. The line 61A in the figure
61B is a line showing the connecting end of the overlapped portions of the long iron plates. The shaft 63 is provided so as to penetrate through the openings provided on the side surfaces of the rail bodies 61 and 62.
Both sides of the shaft 63 are rotatably fixed to the rail bodies 61 and 62 by flat washers 64A and 64B and C-shaped retaining rings 65A and 65B. Collars 66A and 66B having a convex shape are inserted in the shaft 63 between the rail bodies 61 and 62, and are fixed to the shaft 63 from the lower side surface by screws 67A and 67B.

The fixed plate 68 is made up of these two collars 6.
6A and 66B are provided so as to be in contact with the bottom surfaces of both disc portions and move freely, and the lower end portion thereof has a gear shape that meshes with the drop receiving rack 70 embedded in the floor 69. . The right side of the upper end of the fixing plate 68 is screwed and fixed to the left side of the slat curtain 14A. Inside the fixing plate 68, the lateral length is the collar 66.
It is smaller than the diameter of the disk portion shape of A and 66B, has a taper portion on one side toward the lower side, and the length of the lower base is the axis 63.
The diameter of the upper base is substantially larger than that, and the opening 68A has a modified pentagonal shape in which one corner of a rectangle is shaved by a straight line having a predetermined angle. The shaft 63 can freely move within the opening 68A. 6 and 7 show the state in which the slat curtain 14A has finished descending, the shaft 63
Does not contact the taper portion which is the inner edge of the opening 68A, but the shaft 63 and the inner edge of the opening 68A contact each other in a predetermined section during the closing operation and the opening operation of the slat curtain 14A. It has become. That is, as the slat curtain 14A rises, the lower bottom portion of the inner edge of the opening 68A comes into contact with the guide rail 17A.

FIG. 6 and FIG. 7 are views showing the detailed structure of the folding portion of the folding guide rail, and FIG.
It is the figure which looked at guide rail 17A of Drawing 2 from the front, and Drawing 7 is the figure which looked at Drawing 6 from the right. The folding part of the guide rail 17A has a link mechanism, and the four gear plates 81A, 81 having semicircular parts in the shape of gears.
B, 82A and 82B, and joint plates 83A and 83B, both ends of which are formed in a semicircular shape having a radius approximately equal to the semicircular portion of the gear plate. The gear plates 81A, 81B, 82A, 82B are
The rail bodies 61, 62 are fixed by screws with bolts so that their side surfaces come into contact with each other. The lower ends of the gear plates 81A, 81B, 82A and 82B are fixed by screws with bolts via coupling members 87A and 87B having a rectangular parallelepiped shape. Joint plates 83A, 8
3B is provided with openings 85A and 85B in the vicinity of the center of the semicircle into which the rotary shafts 84A and 84B are inserted. Rotating shaft 84
The ends of A and 84B are attached to the rail main bodies 61 and 6 by the flat washers 88A and 88B and the C-shaped retaining rings 89A and 89B.
It is rotatably fixed to 2. The opening 85A,
85B is shown by the dotted line in FIG. The rotary shafts 94A, 94B on the guide rail 18A side are inserted into the other openings 86A, 86B of the joint plates 83A, 83B. A seat plate 14C wider than the thickness of the slat curtain 14A is present at the lower end of the slat curtain 14A. Therefore, when the slat curtain 14A and the guide rail 17A are raised, the seat plate 14C is moved to the rail main bodies 61, 62.
There must be enough clearance to pass through. When the seat plate 14C is in contact with the floor 69, it is necessary to close the gap between the rail bodies 61 and 62.
The closing plates 71A and 71B that are housed in the guide rails 17A when passing through
The rails 61 and 62 are attached to the facing surfaces of the rail bodies 61 and 62 by 73A and 73B.

The curtain obstacle detecting device, which is an opening / closing obstacle sensing means, comprises seat plate switches 30A and 30B, light emitting portions 32A and 32B, and light receiving portions 34A and 34B. The seat plate switches 30A and 30B are provided in the lower part of the slat curtains 14A and 14B, which are opening / closing members, on the closed front end side. The seat plate switches 30A and 30B are publicly known ones, and an upper seat plate, a lower seat plate held so as to be movable up and down with respect to the upper seat plate, and an on / off operation with the vertical movement of the lower seat plate. It is configured to include switches such as micro switches. The light emitting portions 32A and 32B are provided above the seat plate switches 30A and 30B, and wirelessly emit and emit infrared light according to the ON operation of the switch. That is,
When the lower seat plate contacts an obstacle and moves upward, the switch is turned on to output a detection signal indicating that the obstacle has been detected, and the light emitting unit transmits the corresponding information. Infrared light is emitted and emitted from 32A and 32B. The light emitting units 32A and 32B have a built-in battery and are operated by electric power from the battery.

The light receiving portions 34A and 34B are provided on the upper ceiling 25 side and at positions facing the light emitting portions 32A and 32B, and wirelessly receive the infrared light from the light emitting portions 32A and 32B, and correspond thereto. The opening / closing obstacle detection signal is received. The light receiving units 34A and 34B are connected to controllers 50A and 50B that are control means, and output opening / closing obstacle detection signals corresponding to the reception of infrared light to the controllers 50A and 50B.
Output to 50B. As a result, the controllers 50A, 5
An opening / closing obstacle detection signal is transmitted to 0B, that is, information indicating that some obstacle has come into contact with the seat plate switches 30A and 30B of the opening / closing means and that it has been detected. The controllers 50A and 50B control so as to stop the lowering operation of the slat curtains 14A and 14B based on the input of the opening / closing obstacle detection signal. In addition to stopping the lowering operation, the slat curtains 14A and 14B may be controlled to move up so that the opening / closing obstacle detection signal is not output. May be controlled so as to carry out an operation such as decreasing. That is, the obstacle avoiding operation may be controlled. Here, the obstacle avoidance operation means the following operation. If the descent is in the closing direction, stop on the spot, stop after a slight rise, and repeat the descent again after a slight rise. It means repeating a predetermined number of times, a predetermined time, or unlimited. As a general obstacle avoidance operation, when an obstacle is detected, it is possible to stop immediately on the spot, move in the opening direction, move in the opposite direction, etc., but continue as it is. The operation is arbitrary as long as it is an avoidance operation that avoids or reduces the adverse effect on the obstacle as compared with the case of moving, and it is determined by the purpose of use and the mode of use of the switchgear. Good. A specific example of the operation of the controllers 50A and 50B will be described later.

The light emitting portion 32A and the light receiving portion 34A are provided near the center of the slat curtain 14A in the lateral direction. Further, the light emitting portion 32B and the light receiving portion 34B are located near the right end of the slat curtain 14B (in the figure, near the center between the right end of the movable range of the guide rails 15B and 16B and the fixed guide rail 17B). It is provided. That is, these light emitting section 32A and light receiving section 34
A, the light emitting portion 32B, and the light receiving portion 34B are provided at positions as far as possible from the guide rail that rotates. As a result, the light emitting units 32A and 32B and the light receiving unit 34
Guide rail 1 that rotates and moves on the line connecting A and 34B
Since 5A, 16A, 17A, 18A, 15B, 16B do not pass, the opening / closing obstacle detection signal is transmitted to the controllers 50A, 50B without being obstructed by the seat plate switches 30A, 30B, The descent of the slat curtains 14A and 14B can be stopped. The light receiving parts 34A and 34B may be provided in the lintel, or may be provided directly or indirectly on the side surface, ceiling, or floor (slab) of the beam of the building. For example, a shutter case other than the lintel It may be attached via other members that constitute the shutter device such as a bracket or a bracket, and is preferably arranged at a position close to the controller 50A, 50B side.

The guide obstacle detecting device which is the guide obstacle detecting means includes guide rails 15A, 16A, 17A,
18A, 15B, 16B, and tape switches 40 to 4C attached to necessary positions on the respective side surfaces. The tape switches 40 to 4C are known ones,
It is configured to include a switch that is turned on / off by applying a pressing force to the tape surface. The tape switches 40, 45, 49 are provided on the guide rail 15
At the lower end of A, 17A, 15B, tape switch 41,
42, 46, 47, 4A and 4B are guide rails 15.
On both sides of A, 17A, 15B, tape switches 43,
48 and 4C are provided on one side surface of the guide rails 16A, 18A and 16B. Each of these tape switches 4
The signals detected by 0 to 4C are taken in by the controllers 50A and 50B via a wiring (not shown). As an auxiliary member for these wirings, for example, for the purpose of changing the direction of the wirings, a guide roller, a pulley or the like is added to the guide rails to provide a predetermined wiring. That is, when any one of the tape switches 40 to 4C comes into contact with an obstacle, it is turned on,
The controllers 50A and 50B can detect obstacles.

The tape switches 40 to 4C may be separately wired so as to output a detection signal to the controllers 50A and 50B.
The tape switches 40 to 48 attached to A, 16A, 17A, and 18A are connected in series, and the detection signal thereof is taken in by the controller 50A, and the guide rails 15B,
The tape switches 49 to 4C attached to 16B may be connected in series and the detection signal thereof may be taken in by the controller 50B. How to transmit the detection signal from each of the tape switches 40 to 4C to the controllers 50A and 50B may be arbitrary. As a result, the controllers 50A, 50B cause the guide obstacle detection signal, that is, the guide rails 15A, 16A, 17 to be detected.
The information that some obstacle contacts A, 18A, 15B, 16B can be instantly recognized. Further, each of the tape switches 40 to 4C is composed of a plurality of tape switch groups, and the detection signals of the respective tape switch groups are arranged in parallel in the controllers 50A and 50, respectively.
The controller 50A, 50B may be made to be able to recognize the contact position of the obstacle by being taken into B. In this case, the control of the controllers 50A and 50B may be changed according to the contact position. For example, the guide rails 15A, 16A, 17A, 18A,
15B and 16B lateral tape switches 41 to 43,
When an obstacle contacts 46 to 48, 4A to 4C, the guide rail is slowly lowered, and when an obstacle contacts the downward tape switch 40, 45, 49, the rotation movement is stopped. The controllers 50A and 50B receive the guide rail 15 based on the input of the guide obstacle detection signal.
Control is performed to stop the rotational movement operation of A, 16A, 17A, 18A, 15B, 16B. In addition to stopping the rotational movement operation, the slat curtain 14A,
The closing operation of 14B is also stopped at the same time, and the guide rail 15 is arranged so that the guide obstacle detection signal is not output.
A, 16A, 17A, 18A, 15B, 16B may be controlled so as to move in reverse rotation, and other operations such as obstacle avoidance operations such as reduction of rotational movement speed without stopping may be performed. You may. In addition, the guide obstacle detection signals output from the tape switches 40 to 4C and the opening / closing obstacle detection signals output from the seat plate switches 30A and 30B are used as OR condition signals (logical sum signals), and the controller 50A, You may make it control by taking in in 50B. In this case, it is not possible to distinguish whether the guide rail or the curtain has come into contact with the obstacle, but the present invention can be applied to, for example, a vehicle that simply stops when the obstacle is detected.

FIG. 8 is a flow chart showing an example of the operation performed by the controllers 50A and 50B. In the switchgear of FIGS. 1 and 2, the guide rails 15A, 16A,
17A, 18A, 15B, 16B and slat curtain 1
The case where the 4A and 14B are interlocked to perform the closing operation and the rotational movement operation substantially at the same time has been described, but here, the guide rails 15A, 16A, 17A, 18A, 15B, 1
6B and slat curtains 14A, 14B even if they operate separately Controller 5 which can correspond to that
A specific example of the operations of 0A and 50B will be described.

First, in step S61, it is determined whether or not a signal or the like from a heat sensing device such as a smoke sensor or a heat sensor has been received.
The process proceeds to step 62, and if not received (no), the determination process of step S61 is repeated until the signal is received. In step S62, since the controllers 50A and 50B have received the heat detection signal, the brake is released. As a result, in step S63, the guide rails 15A, 16A, 17A, 18A, 15B, 1 are released by releasing the brakes.
6B starts its rotational movement descent by its own weight, and the slat curtains 14A, 14B also start its closing descent by its own weight.

In step S64, the guide rail 15
A, 16A, 17A, 18A, 15B, 16B is determined whether or not the controller 50A, 50B has detected the obstacle detection signal for the guide output from the tape switch 40-4C attached to 16B, it is detected (yes). In this case, the process proceeds to step S65, and when not sensed (no), the process proceeds to step S69.

In step S65, it is determined whether or not the elapsed time from the start of the self-weight descent in step S63 has passed a predetermined time t1 or more. If it has passed (yes), the process proceeds to the next step S66, and it has not passed ( No), the process proceeds to step S69. The determination in step S65 is performed by the guide rails 15A, 16A, 17A, 18A, 15B, 16
When B is folded and stored in the upper portion of the opening, the tape switch 42 and the tape switch 43, the tape switch 47, and the tape switch 4 which face each other are respectively located.
8. Since the tape switch 4B and the tape switch 4C are in close contact with each other, the guide switch obstacle detection signal is output from these tape switches 42, 43, 47, 48, 4B and 4C immediately after the start of the descent of the own weight. This is to ignore the guide obstacle detection signal output in such a close contact state until a predetermined time t1 elapses from the start of the descent of the own weight. If the guide obstacle detection signal is output (turned on) immediately before the start of descent, it can be confirmed that the tape switch or the like is operating normally. further,
The normal operation of the tape switch can be confirmed by confirming that the output of the guide obstacle detection signal is turned off when a predetermined time has elapsed after the descent is started. When it is confirmed that the tape switch is not operating normally, the fact that the tape switch is abnormal is reported or the control method is changed. For example, when it is not possible to determine whether or not the valve is fully closed, the operation is stopped as necessary even if an obstacle is sensed, and the closing operation is controlled to continue after a lapse of a predetermined time. At this time, if it is already fully closed, there is no problem because the continuous descent is not performed as a result.

In step S66, the guide rail 15
It is determined whether or not A, 16A, 17A, 18A, 15B, 16B has descended to a predetermined position, and if descended (yes), proceed to step S69, and if not descended (no), proceed to step S67. . Guide rails 15A, 16
When A, 17A, 18A, 15B and 16B become substantially linear as shown in FIG. 2 by the rotational movement and are erected almost vertically, the tape switches 40, 45 and 49 are
It comes into contact with the member on the slab 20 side and outputs a guide obstacle detection signal. Also, the tape switches 42, 4
3 contacts a contact member such as a contact plate provided on the side surface of the fire door 19 and outputs a guide obstacle detection signal. Furthermore, the tape switch 47 and the tape switch 4
B, the tape switch 48 and the tape switch 4C come into contact with each other and similarly output the guide obstacle detection signal. Therefore, in this step S66, when the guide obstacle detection signals are output from all of the tape switches 40 to 4C, the guide rails 15A and 16C are output.
It is determined that A, 17A, 18A, 15B and 16B have descended to a predetermined position. In addition to this, a detection means for detecting whether or not the vehicle has dropped to a predetermined position may be separately provided. For example, the detection unit is provided on the drop receiving rack 70 or a projecting portion at the lower end of the guide rail (the front end portion of the fixed plate 68) that engages with the drop receiving rack 70.

Ye in step S64 and step S65
It is determined that the guide rails 15A, 16A, 17A and 18 are s, and that the determination is no in step S66.
This means that the tape switches 40 to 4C of A, 15B, and 16B have come into contact with some obstacle in the middle of the rotational movement lowering operation.
The rotational movement descent of A, 16A, 17A, 18A, 15B, 16B is stopped. It should be noted that the closing operation of the slat curtains 14A and 14B that are descending by their own weight may also be stopped. The stop here is to apply the braking, and the stopped state is maintained until the brake is released in step S62.

In step S68, the guide rail 15
A, 16A, 17A, 18A, 15B, 16B is determined whether or not the guiding obstacle detection signal is continuously sensed from the tape switches 40 to 4C attached to the tape switches 40 to 4C, and when it is sensed (yes), it is sensed. Until this step S
The determination of 68 is repeated, and when it is no longer sensed, the process returns to step S62, the brake is released, and the rotational movement due to the weight drop is restarted. In this embodiment, as long as the guide obstacle detection signal is continuously sensed,
Although a flow in which it is not possible to exit step S87 is shown, the flow is not limited to this, and it may be forcibly moved. For example, the guide obstacle detection signal may be continuously detected for some reason (for example, the obstacle may actually be in continuous contact with the sensor due to a malfunction of the sensing switch or an abnormality of the sensing control unit). Even in such a case, only during a predetermined operation, such as when a certain specific operation is continuously performed (for example, when the close switch and the stop switch are continuously pressed for a predetermined time or more). Alternatively, a predetermined operation may be performed to allow movement for a fixed time or a fixed distance. In addition, when obstacle detection is controlled by the battery, when it is found that the battery is exhausted (remaining low), the obstacle is continuously detected to avoid adverse effects on the obstacle. It is conceivable that the same control as described above is performed, but in this case also, the forced movement similar to the above may be performed. In this case, the operation may be slower than the normal operation. Further, if it is possible to distinguish between continuation of sensing due to contact with an obstacle and continuation of sensing due to some failure of the sensing means, the action treatment may be changed. For example, when the continuation of sensing is immediately after the descent starts, the guide rail and the curtain are located above the opening, so in such a case, the possibility of contact with an obstacle is low, which is due to a failure of the sensing means. It may be possible to judge that it is. On the other hand, if the continuous sensing is after a predetermined time has elapsed after the descent is started, the guide rail or curtain is located in the middle or lower part of the opening, and in such a case, there is a possibility that the guide rail or curtain will come into contact with the obstacle. Is extremely high, and it may be possible to determine that some obstacle has come into contact. Therefore, when there is a high possibility of contact with an obstacle, compared to the case where there is a possibility of detection due to a failure, an operation with a lesser degree of influence on the obstacle (for example, an operation that moves more slowly). , An operation such as moving a little more) may be performed. In addition,
If there is still a sense, control is performed so that the guide rails and curtains do not completely land on the floor and that the rails are stopped at a position about 30 to 60 cm away from the floor to avoid adverse effects on the obstacles. Good.

In step S69, the seat plate switch 30 of the curtain portion, that is, the slat curtains 14A and 14B is used.
It is determined whether or not any obstacle comes into contact with A and 30B and is detected, and if it is detected (yes), the process proceeds to step S71, and if not detected (no), the process proceeds to step S70. The determination in step S69 is performed in step S64 when the guide rails 15A, 16A,
17A, 18A, 15B, 16B tape switch 40
When the guide obstacle detection signal is not sensed from the ˜40C, the guide rails 15A and 16 are detected in step S64.
When the guide obstacle detection signal is detected from the tape switches 40 to 40C of A, 17A, 18A, 15B, and 16B, but before the elapse of the predetermined time t1, and after the elapse of the predetermined time t1. Guide rails 15A, 16
When the rotational movement of A, 17A, 18A, 15B, 16B is completed, the linear movement is already performed as shown in FIG. 2, and the vertical movement is performed. Seat plate switch 3
When the opening / closing obstacle detection signal is not output from 0A and 30B, the process proceeds to step S71 to continue the closing operation of the slat curtains 14A and 14B. On the other hand, if the opening / closing obstacle detection signal is output from the seat plate switches 30A and 30B and it is determined as yes in step S69, the process proceeds to step S70.

In step S70, the slat curtain 1
It is determined whether or not the 4A and 14B are descending to a predetermined position, and when descending (yes), the closing operation of the slat curtains 14A and 14B and the guide rails 15A, 16A, 17A, 18A, 15B and 16B are performed as they are. In order to continue the rotating operation of step S71, the process proceeds to step S71, and if it has not descended (no), the process proceeds to step S72. In step S71, the descent operation of the slat curtains 14A and 14B is continued, and the process returns to step S64. In order to detect whether or not the slat curtains 14A and 14B have descended to a predetermined position, the seat plate switch 3 is provided on the slab 20 side.
A tape switch may be provided at a position where a pressing force is applied by the 0A and 30B, or an infrared sensor may detect whether or not the slat curtains 14A and 14B have dropped to a predetermined position. Further, the following can be considered as a specific example for determining whether or not the vehicle is descending to a predetermined position. The determination is made based on whether or not a predetermined time has elapsed from the start of descent. The angle of rotation of the guide rail is detected by an angle sensor, and determination is made based on whether or not the angle is equal to or greater than a predetermined angle. The contact switch and the like are dropped and provided on the receiving rack 70 and the protruding portion (the tip end portion of the fixed plate 68) at the lower end of the guide rail that engages with the rack 70, and determination is made based on whether or not the contact switch is turned on. For take-up curtains,
The amount of movement of the curtain is measured based on the winding shaft, the number of revolutions of the motor, and the like, and determination is made based on whether or not the amount of movement has reached a predetermined value or more. In the case of a slit type shutter or a panel (separate suspension type) shutter, the judgment is made based on the change in the interval between the slats. Detects the relative position of the curtain and the rail including the seat board,
Judge based on that. In particular, when there is a fixed rail, the determination is made based on the pressed state of a switch or the like provided on the fixed rail. Yes in step S69
That is, since the seat plate switches 30A and 30B of the slat curtains 14A and 14B come into contact with some obstacle during the closing operation, it is determined in step S72 that The slat curtains 14A and 14B, which are descending by their own weight, are stopped by braking. In addition, the guide rails 15A, 16
The rotational movement of A, 17A, 18A, 15B, 16B may also be stopped. The stop here is to apply the braking, and the stopped state is maintained until the brake is released in step S62.

In step S73, the slat curtain 1
It is determined whether or not the opening / closing obstacle detection signal is continuously sensed from the seat plate switches 30A and 30B of 4A and 14B,
If it is sensed (yes), the determination in step S73 is repeated until it is no longer sensed, and when it is no longer sensed, the process returns to step S62, the brake is released, and the descent is resumed. The guide rail 15
When A, 16A, 17A, 18A, 15B and 16B and the slat curtains 14A and 14B are interlocked to perform the closing operation and the rotational movement operation at substantially the same time, the determination processing in steps S66 and S70 is omitted, and step S67 is omitted.
The descent stop processing in step S72 can be dealt with by stopping both the guide rails 15A, 16A, 17A, 18A, 15B, 16B and the slat curtains 14A, 14B. It should be noted that, when the opening / closing obstacle detection signal is no longer sensed, the process returns to step S62. However, in the case of the usage mode in which movement is prioritized, the process proceeds to step S62 even if the sensing state is maintained for a predetermined time. Returning and descent may be resumed, or may be lowered by a predetermined distance or lowered by a predetermined time in some cases.

In FIG. 9, the slat curtains 14A and 14B are wound on the winding shaft 5 by rotating the winding shafts 51A and 51B using the motors 52A and 52B.
The guide rails 15A, 1 are wound around 1A, 51B.
When the 6A, 17A, 18A, 15B and 16B are rotatably moved and stored in the ceiling part, the controllers 50A and 50
It is a flowchart figure which shows an example of the operation | movement which B performs.
Slat curtains 14A, 14B and guide rails 15
When the A, 16A, 17A, 18A, 15B and 16B are housed in the ceiling part, there is a possibility that they may come into contact with some kind of obstacle as well. In that case, the controllers 50A, 50
How B controls will be explained. In addition,
In the case of the slat curtains 14A and 14B, there is a low possibility that they will come into contact with obstacles when rising, so in the following description, the guide rails 15A, 16A, 17A, 18A, 15B, 1 will be described.
A case where control is performed based on the ON signal output from the tape switches 40 to 4C attached to 6B will be described. Since the protruding portions of the seat plate switches 30A and 30B may come into contact with some obstacles when the seat plate switches 30A and 30B are raised, a pressing force sensor such as a tape switch may be provided near the upper side of the seat plate switches 30A and 30B. Good.

First, in step S81, it is determined whether or not a rising instruction signal corresponding to the operation of an operation button (not shown) is received. If it is received (yes), the process proceeds to the next step S82 to receive it. If not (no), this determination process is repeated until the signal is received. In step S82, since the controllers 50A and 50B have received the rising instruction signal, the motors 52A and 52B are rotationally driven to wind up the slat curtains 14A and 14B on the winding shafts 51A and 51B. In addition, the guide rails 15A, 16A, 17A, 18A, 15 according to the winding operation of the slat curtains 14A, 14B.
B and 16B are also rotated and moved so as to be housed in the ceiling.

In step S83, the guide rail 15
It is determined whether or not the guide obstacle detection signal output from the tape switches 40 to 4C is sensed during the ascending due to the rotational movement of A, 16A, 17A, 18A, 15B, and 16B. Goes to step S84, and if not sensed (no), goes to step S88.

In step S84, it is determined whether or not the elapsed time from the start of the ascending operation in step S82 has passed a predetermined time t2 or longer. If not (no), the process proceeds to step S88. The determination in step S84 is
Guide rails 15A, 16A, 17A, 18A, 15
When B and 16B are substantially linear as shown in FIG. 2 and are erected substantially vertically, each tape switch 40
Since the guide obstacle detection signal is output from 4C, the guide obstacle detection signal output in such a state is ignored until a predetermined time t2 elapses.

In step S85, the guide rail 15
It is determined whether A, 16A, 17A, 18A, 15B, 16B has risen to a predetermined position, and if raised (yes), proceed to step S88, and if not raised (no), proceed to step S86. . Guide rails 15A, 16
When A, 17A, 18A, 15B, and 16B are folded and stored in the upper part of the opening, the tape switch 42 and the tape switch 43, the tape switch 47 and the tape switch 48, and the tape switch 4B, which face each other, are provided. The tape switches 4C are in close contact with each other, and these tape switches 42, 43, 47, 48,
A guide obstacle detection signal is output from 4B and 4C. Therefore, in this step S85, these tape switches 42, 43, 47, 48, 4B, 4C.
When a guide obstacle detection signal is output from the guide rails 15A, 16A, 17A, 18A, 15B, 16
It is determined that B has risen to a predetermined position. In addition to this, a detection means for detecting whether or not it has risen to a predetermined position may be separately provided.

In step S86, y in step S84.
It is determined to be es, and it is determined to be no in step S85, which means that the guide rails 15A, 16A, 17A, 1
Since 8A, 15B and 16B mean that some obstacles were contacted during the rotational movement ascent, the slat curtains 14A and 14B and the guide rails 15A, 16A and 1
The ascending operation of 7A, 18A, 15B and 16B is stopped. In addition, while stopping the rising slat curtains 14A and 14B, the guide rails 15A and 1B are stopped.
The rotational movement of 6A, 17A, 18A, 15B, 16B is also stopped.

In step S87, the guide rail 15
A, 16A, 17A, 18A, 15B, 16B is determined whether or not the guiding obstacle detection signal is continuously sensed from the tape switches 40 to 4C attached to the tape switches 40 to 4C, and when it is sensed (yes), it is sensed. Until this step S
The determination of 87 is repeated, and when it is no longer sensed, the process returns to step S82 to restart the ascending operation.

In step S88, the slat curtain 1
It is determined whether or not 4A and 14B have risen to a predetermined position, and if they have risen (yes), step S8A.
If not rising (no), go to step S89.
Proceed to. The determination in step S88 is performed
In step S83, the guide rails 15A, 16A, 17
A, 18A, 15B, 16B tape switches 40-4
If the guide obstacle detection signal is not sensed from 0C, the guide rails 15A, 16A, 1 are detected in step S84.
7A, 18A, 15B, 16B tape switch 40 ~
When the guide obstacle detection signal is sensed from 40C, but before the predetermined time t2 has elapsed, and when the predetermined time t has passed.
After 2 passes, guide rails 15A, 16A, 17
There are three types of cases where the rotation movement of A, 18A, 15B, and 16B is completed and already folded on the ceiling.
Therefore, if the slat curtains 14A and 14B have not been raised to the predetermined positions, the step S is performed to continue the raising operation of the slat curtains 14A and 14B.
Proceed to 89. On the other hand, when the slat curtains 14A and 14B have risen to the predetermined positions, the process proceeds to step S8A.

In step S89, the slat curtain 1
The ascending operation of 4A and 14B is continued, and the process returns to step S83. In step S8A, since it is determined as yes in both step S85 and step S88, the slat curtains 14A, 14B and the guide rails 15A,
Since this means that the storage operation of 16A, 17A, 18A, 15B, 16B has been completely completed, the ascending operation is stopped at this point and braking is applied so as not to descend due to its own weight.

In the above embodiment, the seat plate switch 30 is used.
A light emitting unit 32 outputs an obstacle detection signal for opening and closing by A and 30B.
Although the case of transmitting using A, 32B and the light receiving portions 34A, 34B has been described, the controller 50 which is a control means on the ceiling 25 side in a wired manner via a cord which is a wiring means.
You may make it transmit to A and 50B.

FIG. 10 is a view showing a modified example of the guide rail which rotates and moves. In the above-described embodiment, the guide rails 15A, 16A, 17A, 18A, 15B, 16B.
10 is folded and stored in the ceiling 25, but in FIG. 10, the guide rails 16D and 18D are configured to be stored in the ceiling 25 as they are without being folded. In this case as well, the guide rails 16D, 18
D is rotatably moved in conjunction with the closing operation of the slat curtain 14D, and the rotatably moved guide rails 16D and 18D are rotatably moved so as to sandwich the slat curtain 14D in the front and rear, and are thus extended. The obstacle detection device (light emitting unit 32C, light receiving unit 34C) is attached at a position where the transmission and reception of infrared light is not disturbed by the rotational movement operation of 16D and 18D. In the figure, the light emitting portion 32C and the light receiving portion 34C are provided near the center of the slat curtain 14D in the width direction. As a result, the guide rails 16D and 18D that rotate and move on the line connecting the light emitting unit 32C and the light receiving unit 34C do not pass, so that the information on the obstacle detected by the seat plate switch 30C is not disturbed and is transmitted to the controller side. As a result, the descent of the slat curtain 14D can be stopped. Guide rails 16D and 18 of FIG.
In the case of D, as in the case of FIG. 1, the guide rails 16D,
Tape switches 90 to 95 are attached to necessary portions on the respective side surfaces of 18D. Tape switch 90,9
3 is the lower end of the guide rails 16D, 18D, and the tape switches 91, 92, 94, 95 are the guide rails 16D,
It is provided on both sides of 18D. Tape switch 9
1, 94 are attached to almost the entire length of the guide rails 16D and 18D, while the tape switches 92 and 95 are attached to the lower half of the entire length of the guide rails 16D and 18D. When the guide rails 16D and 18D are rotated and moved down, it is highly possible that some obstacles come into contact with the portions where the tape switches 91 and 94 are attached, but the tape switches 92 and 95 are attached. It is extremely unlikely that an obstacle will come into contact with the broken portion when descending. On the other hand, since the tape switches 92 and 95 to which the tape switches 92 and 95 are attached may come into contact with some obstacle when rotating and moving upward, they are provided in this embodiment. In this case, since it is unlikely that the lower portions of the guide rails 16D and 18D come into contact with the obstacle, in this embodiment, the tape switches 92 and 95 are attached to the lower halves.
Is attached. Each of these tape switches 90-95
The signal detected in step 1 is taken in by the controller via a wire (not shown). Further, the controller performs the same processing as described above. Note that how to attach the tape switches 90 to 95 is arbitrary, and the tape switches 90 to 95 may be attached only to a portion that is likely to come into contact with an obstacle, or may be attached to the entire portion. .

In the above-described embodiment, the shutter device, which is the opening / closing member, is pulled out while closing and is closed. However, other than this, the opening / closing member is pulled out by a horizontal pulling system or raised. The same can be applied to the case where it is fed out by a system or is fed out horizontally. Further, the above-mentioned shutter curtain can be applied to smoke prevention, crime prevention, sun protection, rain protection, etc. depending on the purpose of fire prevention, the place where it is installed and the environment, condition, and various circumstances. Examples of the opening / closing device include a shutter device, a blind device, a roll screen device, and a hanging device. When the opening / closing device is a shutter device, the opening / closing member that is the opening / closing means is a shutter curtain, and the structure is such that a slat curtain made of many strip-shaped slat materials, and many pipe materials are connected by link materials. Pipe grill curtains, panel curtains made of single or multiple connected panel materials, net curtains made of net material,
A sheet curtain made of a synthetic resin or a cloth fiber sheet material, or a composite curtain made of a composite member of these or the like. The material of the opening / closing member, which is the opening / closing means, may be any material as long as it meets the purpose of use. Specifically, it may be made of metal, wood, plastic, cloth, or a combination thereof. In the case of a switchgear installed for the purpose of fire protection, it is preferable that at least the material of the switchgear, which is the switchgear, has fire resistance.

In the above-described embodiment, the seat plate switch and the tape switch have been described as the obstacle detecting means.
The seat plate switch and the tape switch detect an obstacle by abutting on the obstacle, but other than this, it is also possible to detect the obstacle without abutting. For example, as a means for detecting an obstacle without contact, a light emitting element and a light receiving element for infrared light are provided on both sides of the opening / closing member, and an obstacle is detected when the infrared light is blocked. There is. Further, the obstacle detecting means detects an obstacle existing in the opening including the periphery of the opening.

Further, in the above-mentioned embodiment, an example of using infrared light as a wireless system for transmitting an obstacle detection signal has been described, but a frequency signal (sound wave, ultrasonic wave, radio wave, etc.) may be used. Good. When a radio wave or the like is used, interference with the guide rail that rotates is extremely small, so that it is possible to arrange the obstacle detection means at a relatively free position. Therefore, in the case of a frequency signal, it is preferable to arrange the guide rail so as not to be obstructed by the guide rail in the case of an ultrashort wave having a high degree of straightness. Further, in the above-mentioned embodiment, the code is described as an example of the wiring means.
The detection signal may be transmitted by an optical cable using an optical signal such as an optical fiber. Further, the obstacle detecting means may be one that detects by a fluid pressure such as air by a hollow tube such as a tube. To prevent the obstacle detection means from being obstructed by the guide rails that rotate and move, which has been described in the above-described embodiment, it does not matter whether the signal transmission means is a wireless method or a wired method. It is more effective when it has straightness.

In the above-described embodiment, the case where the guide rails that rotate and rotate rotate in conjunction with the closing operation of the opening / closing member has been described, but the invention is not limited to this, and the guide rails that rotate and move before the opening / closing member may be used. Alternatively, it may be rotated after the opening / closing member. That is, the embodiment is characterized in that the opening / closing means and the guide means are configured to interlock in a causal relationship. As the causal relationship, the above-mentioned embodiment refers to the mechanical coupling relationship, but other than this, it may be configured to be linked by an electrical coupling relationship. Further, the obstacle detecting means may be one that transmits a detection signal that is detection information when an obstacle is detected, and one that transmits removal information or the like even when the obstacle is removed. (For example, information indicating the remaining battery level, information indicating that the remaining battery level is low, diagnostic information, etc.) may be added for transmission. It is preferable that the information such as the remaining battery level be transmitted at the same time as when the obstacle sensing state (or the obstacle unsensing state) is reached or after a lapse of a predetermined time near the time from that time. However, it is not limited to this, and it is only about the fact that such a state is used as a trigger. Further, the obstacle detection signal may be a single signal or may be a signal that is continuously or intermittently transmitted. If the signal transmission means for transmitting the detection signal of the obstacle is arranged so as not to be disturbed by the guide means that rotates, for example,
It may be provided along at least one surface before and after the opening / closing means, or may be provided by inserting the inside of the opening / closing means. The detection signal output means, which is the obstacle detection means,
When it is provided in the opening / closing means, it is more preferable that at least a part of the detection signal output means is arranged closer to the closing tip side (closing direction side) than at least a part of the guide means rotating and moving. preferable. The drive system of the switchgear is
It is optional such as an electric type and a self-weight lowering type.

In the above-described embodiment, the case where the seat plate switch is in contact with the floor to recognize that the switch is fully closed has been described. However, in the case of a slit type shutter or a panel (separate suspension type) shutter, Even after the seat plate switch etc. touches the floor, the opening / closing means may be moved or need to be moved in the closing direction by a predetermined amount (distance, time, etc.), so control corresponding to this is required. Becomes That is, in a slit type shutter capable of ventilation, daylighting, etc., even after the seat plate switch or the like comes into contact with the floor, the slits provided in the engaging portions of the slats constituting the shutter curtain are closed and the slats are brought into close contact with each other. Therefore, it may be necessary to move the opening / closing means in the closing direction by a predetermined amount. Also, in the panel (separate suspension type) shutter in which panels in each separated state are connected by a chain etc. and suspended by this chain, even if the seat plate switch etc. touch the floor, it touches the floor. It is possible that only the panels that are in contact with each other have landed, and the entire shutter curtain, that is, the entire panels that make up the shutter curtain, are still separated from each other. Only when the entire panel is brought into close contact with each other from such a state, the shutter curtain as a whole is brought into a fully closed state. It is necessary to keep the whole in close contact.

According to the above-described embodiment, it is particularly effective for the case where at least one of the ends of the rail and the curtain is fully closed so as to contact with a fixed object such as a floor, a frame or the ground. That is, it is effective for a device that is supposed to be in an obstacle sensing state when fully closed. Furthermore, it is effective when both the rail and the curtain are fully closed. In that respect, for example, an awning device or the like, which merely extends the curtain by a predetermined amount for sunshades and the like, cannot be said to be fully closed because its tip does not contact the ground or the like. Moreover, since the tip of the smoke-proof curtain or smoke-proof curtain does not contact the floor surface, it cannot be said that the curtain is fully closed. In the above embodiment,
The case where the guide obstacle sensing means (tape switches 42, 43) comes into contact with a contact member such as a contact plate provided on the side surface of the fire door and outputs a guide obstacle detection signal has been described. The guide obstacle sensing means may not be provided at the contacting or engaging portion. This is to prevent the sensing means from being damaged or broken when the sensing means is composed of fragile parts or the like. Therefore, in such a case, the guide obstacle sensing means may be provided at a position avoiding the portion that abuts or engages with the fire door. That is, when the contact point is small when viewed from the entire guide means and it is possible to sense the vicinity of the point, or when the possibility of contact with an obstacle at the point is rare, the guide point is set at the point. This may be done if there is a risk without the obstacle sensing means. As in the above-described embodiment, the guide obstacle sensing means is provided so as to abut or engage the fire door, and the guide obstacle sensing means positively abuts or engages the fire door. It is determined whether or not the guide obstacle sensing means provided so as to abut or engage the fire door is in the sensing state, for example, when it is determined to be fully closed by other means. By determining whether or not the determination of the fully closed state is further correct, or whether or not the fire door is in the closed state can be determined.

[0057]

As described above, according to the opening / closing device of the present invention, there is an effect that an obstacle can be appropriately dealt with when the guide means is rotationally moved.

[Brief description of drawings]

FIG. 1 is a schematic view of a shutter device according to the present invention, and is a front view showing a state in the middle of a closing operation of a shutter curtain.

FIG. 2 is a front view showing a fully closed state of a shutter curtain of the shutter device of FIG.

FIG. 3 is a diagram showing an example of a winding mechanism of a slat curtain.

FIG. 4 is a diagram showing a detailed configuration of a connecting portion between a foldable guide rail and a slat curtain, and is a view of the guide rail of FIG. 2 seen from the right direction.

5 is a diagram showing a detailed configuration of a connecting portion between a foldable guide rail and a slat curtain, and is a cross-sectional view taken along line AA of FIG.

6 is a diagram showing a detailed configuration of a folded portion of a foldable guide rail, showing the guide rail of FIG. 4 as viewed from the front direction.

FIG. 7 is a diagram showing a detailed configuration of a folded portion of a folded guide rail, and is a diagram of FIG. 6 viewed from the right direction.

8 is a flowchart showing an example of an operation performed by the controller of FIG.

FIG. 9 is a flowchart showing an example of the operation performed by the controller when the slat curtain and the guide rail are housed in the ceiling portion using the motor.

FIG. 10 is a diagram showing a modification of the guide rail that rotates and moves.

[Explanation of symbols]

11A, 11B, 12A, 12B ... Bracket, 13
A, 13B ... Intermediate drum, 14A, 14B ... Slat curtain, 15A, 16A, 17A, 18A, 15B, 1
6B: guide rail, 19: fire door, 20: slab, 2
1, 22 ... Pillars, 23 ... Upper floor slabs, 24 ... Beams, 25 ... Ceiling, 30A-30C ... Seat switch, 32A-32C ...
Light emitting part, 34A to 34C ... Light receiving part, 40 to 4C ... Tape switch, 50A, 50B ... Controller, 51A, 5
1B ... Winding shaft, 52A, 52B ... Motor, 53 ...
Intermediate drum,

Continued front page    (72) Inventor Noriaki Iwase             3-26-4 Shimura, Itabashi-ku, Tokyo             Inside Yatter Co., Ltd. F term (reference) 2E042 AA01 BA01 CA01 CB05 CC03                       CC08 DA01

Claims (9)

[Claims] 1. An opening / closing means that moves to open and close the opening, a guide means that is provided so as to sandwich the opening and closing means from the front and back by rotationally moving, and a guide path on which the guiding means is moving in rotation. An opening / closing device, comprising: a guide obstacle sensing means for sensing the presence of an obstacle. 2. The control unit according to claim 1, wherein when the guide obstacle sensing unit senses an obstacle, at least one of the guide unit and the opening / closing unit controls to perform an obstacle avoiding operation. An opening / closing device characterized by comprising. 3. The guide position detection means for detecting the rotational movement position of the guide means, and the guide obstacle detection means according to claim 1, wherein the rotational movement position meets a predetermined condition. When satisfied, the opening / closing device is provided with control means for controlling at least one of the guide means and the opening / closing means so as not to perform an obstacle avoiding operation. 4. The opening / closing obstacle sensing unit according to claim 1, 2 or 3, wherein the opening / closing obstacle sensing unit senses the presence of an obstacle on a moving path of the opening / closing unit during the opening / closing operation, and the opening / closing obstacle sensing unit is an obstacle. If you sense something,
At least one of the guide means and the opening / closing means includes a control means for controlling to perform an obstacle avoiding operation. 5. The opening / closing obstacle detection means for detecting the presence of an obstacle on the moving path of the opening / closing means during the opening / closing operation of the opening / closing means, and the moving position of the opening / closing means according to claim 1. When the opening / closing position detecting means and the opening / closing obstacle detecting means detect an obstacle and the moving position satisfies a predetermined condition, at least one of the guide means and the opening / closing means performs an obstacle avoiding operation. An opening / closing device, comprising: a control means for controlling so as not to perform. 6. The opening / closing obstacle sensing unit according to claim 2 or 3, which senses the presence of an obstacle on the moving path of the opening / closing unit during the opening / closing operation, and the opening / closing unit that detects the moving position of the opening / closing unit. When the position detecting means and the opening / closing obstacle sensing means sense an obstacle, and both the rotational movement position and the movement position satisfy predetermined conditions, at least one of the guide means and the opening / closing means is An opening / closing device, comprising: a control unit that controls so as not to perform an obstacle avoidance operation. 7. The control means according to claim 6, wherein the opening / closing obstacle sensing means and the guide obstacle sensing means both sense an obstacle, and both the rotational movement position and the movement position are under predetermined conditions. If the above condition is satisfied, the opening / closing device and the guide device are both recognized to be in a fully closed state. 8. The guide means according to claim 1, wherein a plurality of the guide obstacle sensing means are provided, and when the control means senses an obstacle by at least two of the guide obstacle sensing means. A switchgear which is characterized in that it is recognized as being in a predetermined state. 9. The control means according to claim 1, wherein when the guide means at a predetermined position starts moving, the control means detects the guide obstacle according to an obstacle detection state of the guide obstacle detection means. A switchgear for determining the operating state of the means.