JP2012241342A - Opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect displacement of an opening/closing body in its width direction at portions of the opening/closing body around a shaft on an opening direction side and relatively close to the shaft.SOLUTION: An opening/closing device is provided that includes an opening/closing body 10 making a closing movement so as to partition space. The opening/closing device causes the opening/closing body 10 to rotate around a shaft on its opening direction side and houses the opening/closing body 10 therein, and also causes the opening/closing body 10 to rotate in the opposite direction so as to be unreeled. A displacement detection unit 40 is provided for detecting a displaced portion of the rotating opening/closing body 10 that is caused when the opening/closing body 10 rotates in the state where it is partially or entirely displaced to one side in its width direction.

Description

  The present invention relates to an opening / closing device in which a part or all of the opening / closing body may be displaced in the opening / closing body width direction.

Conventionally, according to this type of opening and closing device, there is a case where a part of the slat connected in the opening and closing direction slightly shifts in the opening and closing body width direction due to vibration during the opening and closing operation. When such a phenomenon is repeated for a long period of time, the part of the slats protrudes more greatly than the other slats in the width direction of the opening / closing body, and the deviation part of the slats causes the winding shaft to protrude. There is a risk of interfering with and damaging the supporting bearing bracket and other parts.
Therefore, in the invention described in Patent Document 1, when the opening / closing body is extended from the take-up shaft, the slat shift portion generated as described above is applied to the correction member below the take-up shaft. The protruding state is corrected by touching.
Further, in the invention described in Patent Document 2, the shift portion of the slat in the opening / closing body fed out from the take-up shaft is sensed by contacting a shift detection unit (detection sensor) below the take-up shaft, An alarm is issued according to the detected signal.

However, in the prior art, because the shift portion of the opening and closing body is to be corrected or detected below the winding shaft, the portion of the opening and closing body that is unwound on the winding shaft, The portion close to the winding shaft is left uncorrected and not detected, and this portion may cause damage to the bearing bracket and other parts.
In the latter prior art, when the protruding amount of the slat increases, the shift portion may come into contact with the cover, the limit switch, or the like, and the shift detection unit (detection sensor) may be damaged.

JP-A-9-88457 Japanese Utility Model Publication No. 4-125399

  This invention makes it an example of a subject to cope with such a problem. That is, detecting a shift in the width direction of the opening / closing body in a portion around the axis on the opening direction side of the opening / closing body or a portion relatively close to the axis, reducing damage to the shift detection unit due to the detection, etc. Is the object of the present invention.

  The technical means for solving the above-described problem includes an opening / closing body that closes and operates to partition a space, and stores the opening / closing body by rotating it around an axis on the opening direction side and rotating it in the opposite direction. In the opening / closing device that is extended, when the rotation is performed in a state where a part or all of the opening / closing body is shifted to one side in the opening / closing body width direction, the shift detection unit is configured to detect the rotating shift portion. Is provided.

Since the present invention is configured as described above, the following effects can be obtained.
A shift in the width direction of the opening / closing body can be detected in a portion around the axis on the opening direction side of the opening / closing body or a portion relatively close to the axis.
Therefore, for example, even when a deviation in the width direction of the opening / closing body occurs in a portion of the opening / closing body that is unwound on the winding shaft or a portion that is relatively close to the winding shaft, the deviation is detected. Can do.

It is a front view which shows an example of the switchgear concerning this invention. It is a principal part longitudinal cross-sectional view of the switchgear. It is the structure figure which looked at the same opening and closing device from the upper part. FIG. 4 is an enlarged view of a main part of FIG. 3, in which (a) shows a state in which the slat protrudes toward one side, and (b) shows a state in which the object to be detected protrudes toward one side due to a shift in the reverse direction of the slat. Indicates. It is a principal part enlarged view which shows an example of a reverse direction moving means, (a) shows the state to which the to-be-detected body was immersed, (b) shows the state to which the to-be-detected body protruded.

  An embodiment for carrying out the present invention includes an opening / closing body that closes and closes a space, and stores the opening / closing body by rotating it around an axis on the opening direction side and rotating it in the reverse direction. In the opening and closing device that is extended, when the rotation is performed in a state where a part or all of the opening and closing body is deviated to one side in the opening and closing body width direction, the deviation detecting unit is configured to detect the rotating deviation portion. Provided.

  In addition, when the displacement of the opening / closing body occurs near the connection portion with the winding shaft, it is not corrected by the guide rail or the like. A winding shaft that winds or unwinds the opening / closing body, wherein the shift detection unit is provided at a position corresponding to a first round portion of the opening / closing body wound around the winding shaft.

  In addition, during the opening / closing operation of the opening / closing body, there is little need for control such as stopping the opening / closing body or issuing an alarm. Therefore, preferably, the deviation detection unit performs detection during the opening operation of the opening / closing body. First, it is configured to detect when the opening / closing body is closed.

  Further, from the viewpoint of reducing damage to the shift detection unit due to the contact of the opening / closing body, preferably, the shift detection unit is fixed on the other end side so as to be bent on one end side by contacting the rotating shift portion. A bending piece portion fixed to the part and a switch portion that operates by a predetermined amount of bending of the bending piece portion and outputs a detection signal are provided.

  Furthermore, as another preferable specific example, the deviation detecting unit is fixed to the stationary part at the other end side so as to bend the one end side in contact with the rotating deviation part, and the bending part. A switch portion that operates by a predetermined amount of bending of the one portion and outputs a detection signal, and the bending portion bends in one direction when it comes into contact with the shift portion that rotates in the storage direction, and is fed out. The switch portion is provided so as to bend in the other direction when contacted with the shift portion rotating in the direction, and the switch portion is provided so as to receive and act on the bending piece portion on the other direction side of the bending piece portion. It has been.

  Moreover, as a preferable aspect for protecting the switch portion, the flexible piece portion causes the portion that is in contact with the shift portion to protrude closer to the opening / closing body than the switch portion in the opening / closing body width direction.

  Further, as a mode for more effectively protecting the shift detection unit, the shift detection unit includes a guide rail that surrounds the widthwise end of the opened and closed body and guides in the closing direction, and the shift detection unit is more than the guide rail. It is provided outside the opening / closing body width direction.

  Further, as a more preferable form, the opening / closing body has a slat connected in the opening / closing direction, and the shift portion is a portion protruding by shifting the slat in the opening / closing body width direction.

  Furthermore, from the viewpoint of handling the electrical wiring, etc., as a preferred form, the driving device for opening and closing the opening / closing body is provided, and the deviation detection unit and the driving device are on the same direction side in the opening / closing body width direction. Arranged.

In the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.
Further, in this specification, the “opening / closing body width direction” means a direction that is substantially orthogonal to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body slides in order to partition or open the space.
Further, in the present specification, the “guide rail bottom portion” means a portion of the guide rail that faces the end portion in the width direction of the opening / closing body.

In the following, particularly preferred embodiments of the present invention will be described with reference to the drawings.
The opening / closing device 1 is disposed in or inside a housing, such as a house, building, warehouse, factory, underground mall, tunnel, or vehicle loading platform, and opens and closes the opening, or partitions or opens a space inside the housing. It is a shutter device.

The opening / closing device 1 includes an opening / closing body 10 (shutter curtain) that performs a closing operation by sliding an end portion in the closing direction so as to partition a space, and a guide rail 20 that surrounds the end portion in the width direction of the opening / closing body 10 and guides the opening / closing direction. And a storage unit 30 that rotates and retracts the opening / closing body 10 about its opening direction side shaft (winding shaft 32), and rotates and rotates it in the reverse direction.
Then, when the slat 11a constituting the opening / closing body 10 protrudes by shifting by a predetermined amount or more to one side in the opening / closing body width direction, the opening / closing device 1 detects this by the displacement detecting unit 40, and also detects the slat 11a. Is detected by the shift detection unit 40 via the reverse direction moving means 50 when the switch protrudes to the other (reverse direction) in the opening / closing body width direction by a predetermined amount or more.

The opening / closing body 10 constitutes the opening / closing body main body 11 by connecting a plurality of so-called slats 11a formed by bending a horizontally long and substantially rectangular metal plate in the opening / closing body opening / closing direction. A seat plate 12 for contacting a seating target part a such as a floor surface, the ground, or a frame member is connected to the part side (lower end side in the illustrated example).
An end of the opening / closing body 10 in the opening direction is fixed to the outer peripheral surface of the winding body 32a of the winding shaft 32, and an end of the opening / closing body 10 in the width direction is an end in the axial direction of the winding body 32a. A predetermined amount protrudes from the portion.

Each slat 11a is a member having a substantially concave longitudinal section continuous in the opening / closing body width direction, and has a curl-like or hook-like connection portion (not shown) for connecting to another slat 11a on one end side in the opening / closing body opening / closing direction. And a connected portion (not shown) that engages with the connecting portion of the other slat 11a.
One of the two slats 11a, 11a adjacent in the opening / closing direction can be rotated with respect to the other by connecting the connecting portion and the connected portion, and the other is slid in the opening / closing body width direction with respect to the other. It is possible to make it.

The guide rail 20 is a member that surrounds the widthwise end of the opening / closing body 10 in a substantially U-shaped cross section, and is long between the storage portion 30 on the opening direction side of the opening / closing body 10 and the seating target part a. It is arranged in a shape.
An inclined plate-like slat correction portion 21 is provided at the end of the guide rail 20 on the opening / closing body opening direction side. This slat correction part 21 is a case where the slat 11a is displaced in the opening / closing body width direction, and when the deviation is not detected by the displacement detection part 40 described later, the slat 11a is placed along the inclined surface. The original position is corrected and guided into the guide rail 20.

  The storage unit 30 includes a winding shaft 32 that winds and unwinds the opening / closing body 10 in a storage case 31, a bearing bracket 33 that rotatably supports the winding shaft 32 via a bearing 35, and the like. A drive device 34 (see FIG. 3) for rotating the take-up shaft 32 by a chain 34a, sprockets 34b, 34c, an opening / closing machine 34d (motor) and the like provided on one end side in the axial direction, and a slat 11a in the opening / closing body width direction And a deviation detecting unit 40 for detecting that the deviation is greater than a predetermined amount.

  The winding shaft 32 is fixed to the substantially cylindrical winding body 32a with the opening-side end portion of the opening / closing body 10 fixed to the outer peripheral surface, and the radial direction center side of the winding body 32a and the axial direction The shaft main body 32b is rotatably supported by bearing brackets 33 and 35, respectively.

  The bearing bracket 33 is a flat plate member made of metal having a bent portion for reinforcement on the end side, and the shaft main body 32b of the winding shaft 32 is inserted into a through hole (not shown) on the center side. The shaft body 32b is rotatably supported by a bearing 35 mounted around the through hole.

In the displacement detection unit 40, a part of the slats 11 a of the opening / closing body 10 protrudes to one side in the opening / closing body width direction relative to the other slats 11 a, and the protruding slat 11 a is wound around the winding body 32 a of the winding shaft 32. At the same time, when the take-up shaft 32 rotates, the shift portion 11a1 (see FIG. 4A) from which the rotating slat 11a protrudes is detected.
More specifically, the shift detection unit 40 is disposed at a predetermined distance from the axial end of the winding body 32 a of the winding shaft 32 and is also used for the opening / closing body 10 wound around the winding shaft 32. It arrange | positions so that it may correspond to the part of the 1st round, and is being fixed to the bearing bracket 33. FIG.
Further, as shown in FIG. 2, the shift detection unit 40 is disposed on the same side as the winding shaft 32 (on the right side of the opening / closing body 10 according to FIG. 2) with the extended opening / closing body 10 as a reference. Furthermore, it is disposed above the guide rail 20 and below the shaft body 32b of the winding shaft 32.

  And this deviation | shift detection part 40 is contact | abutted to the deviation | shift part 11a1 of the slat 11a rotated with rotation of the winding shaft 32, and the other end side is the bearing bracket 33 which is an immobile part so that it may bend. And a switch part 42 that is actuated by a predetermined amount of bending of the bending piece part 41 and outputs a detection signal.

The flexure piece 41 is a long member that abuts on the displacement portion 11a1 of the slat 11a and bends and restores to its original state when released from the corresponding contact. For example, the flexure piece 41 is used as a leaf spring material or the like. Processed from metallic materials.
And when this bending piece part 41 is contact | abutted to the shift | offset | difference part 11a1 of the slat 11a rotated in the winding direction of the winding shaft 32, it bends to one direction side (accordingly diagonally downward side according to FIG. 2), When it comes into contact with the shift portion 11a1 of the slat 11a that rotates in the feeding direction of the take-up shaft 32, it is provided so as to bend toward the other direction having the switch portion 42 (obliquely upward in FIG. 2).

In particular, according to a preferred example of the present embodiment, the flexure piece portion 41 projects a portion that abuts on the shift portion 11a1 of the slat 11a toward the slat side from the switch portion 42.
More specifically, as shown in FIG. 2, in the length direction of the bending piece 41, the bending piece 41 projects the free end side to the slat 11 a side by a predetermined amount w 1 from the switch portion 42. ing.
Further, as shown in FIG. 4A, the bending piece portion 41 is set to have a width direction dimension larger than that of the switch portion 42, and one end portion of the bending piece portion 41 in the width direction is switched. A predetermined amount w2 is protruded toward the slat 11a side from one end of the portion 42 in the width direction.
According to these configurations, before the shift portion 11a1 of the slat 11a contacts the switch portion 42, the switch portion 42 can be operated by bringing the shift portion 11a1 into contact with the flexure piece portion 41. It is possible to prevent 42 from being brought into direct contact with the slat 11a and being damaged.

The switch portion 42 is a general limit switch (also referred to as a micro switch) that turns on a contact point when the actuator portion is pushed, and is on the other side of the bending piece portion 41 (in FIG. 2, obliquely upward). The bending piece 41 is received by the actuator portion and operated.
The switch portion 42 does not detect when the opening / closing body 10 is opened, but detects when the opening / closing body 10 is closed, and the bending piece 41 along the feeding rotation direction of the winding shaft 32. Are provided on the bending direction side (in FIG. 2, diagonally upward to the right).

According to this configuration, when the opening / closing body 10 is opened, the take-up shaft 32 rotates in the take-up direction (clockwise according to FIG. 2), so that the shift portion 11a1 of the slat 11a is bent. Is not detected because the switch portion 42 does not exist on the bending direction side (the diagonally lower left side in FIG. 2).
Further, when the opening / closing body 10 is closed, the winding shaft 32 rotates in the feeding direction (counterclockwise according to FIG. 2), and the bent piece 41 bent by the shift portion 11a1 of the slat 11a is switched. Since the unit 42 is operated, it is possible to control such as issuing an alarm or stopping the opening operation of the opening / closing body 10 by a contact signal of the switch unit 42.
That is, when the opening / closing body 10 is configured to detect the shift portion 11a1 of the slat 11a, the detection stops the opening operation of the opening / closing body 10 or issues an alarm during the opening operation of the opening / closing body 10. For example, since a person who tries to pass through the opening / closing body 10 is prevented from passing, the present embodiment prevents such a situation.
As another example, the arrangement of the bending piece portion 41 and the switch portion 42 is reversed so that the detection is performed during the opening operation and the detection is not performed during the closing operation. It is also possible to provide a switch portion 42 on both sides of the sandwiching and to perform detection in both the opening operation and the closing operation.

Further, the deviation detecting unit 40 having the above-described configuration is provided outside the guide rail 20 in the opening / closing body width direction, more specifically, outside the slat correction unit 21 at the upper end of the guide rail 20 in the opening / closing body width direction.
According to this configuration, even when the slat 11a protrudes in the opening / closing body width direction, if the protrusion amount is such that it can be corrected by the slat correction portion 21 of the guide rail 20, the protrusion is corrected. Corrected by the unit 21, otherwise, the protrusion can be detected by the shift detection unit 40. That is, even when the protrusion of the slat 11a is automatically corrected, it is possible to prevent the deviation detection unit 40 from operating.

  Further, the reverse direction moving means 50 is mounted on the slat 11a between the slat 11a wound around the take-up shaft 32 and the outer peripheral surface of the take-up shaft 32, and the slat 11a is attached to the one (right side according to FIG. 1). When the slat 11a moves in the opposite direction (leftward according to FIG. 1), the moving force of the slat 11a in the opposite direction causes the detected object 52 to move from the amount of movement of the slat 11a in the opposite direction. This is a device that is moved to one side and protrudes (see FIGS. 4 and 5).

  More specifically, the reverse direction moving means 50 includes a base 51 fixed to the slat 11a and the detected body 52 provided to move in the opening / closing body width direction with respect to the base 51. The moving pulley 53 provided so as to move substantially in parallel with the moving direction of the detected object 52, and the moving pulley 53 provided integrally with the moving pulley 53 and moving in the opposite direction to the winding shaft 32. The locking piece portion 54 to be locked and one end portion are fixed to the base 51 and the other end portion is fixed to the detected body 52, and the moving pulley portion 53 is between these one end portion and the other end portion. And a string-like member 55 hung around the one side (right side according to FIG. 5).

  According to the illustrated example, the base 51 has a shape obtained by bending a metallic plate-like member into a U-shaped cross-section for reinforcement, and is on the end side in the opening / closing body width direction of the slat 11a. 11a is fixed to the concave portion on the back side by fixing means such as screwing, riveting or welding.

  The detected body 52 is a member that is elongated in the opening / closing body width direction, and is engaged with the base 51 so as to move a predetermined amount in the opening / closing body width direction.

The moving pulley 53 is a pulley-like member that is rotatable with respect to the base 51 and engaged so as to move a predetermined amount in the opening / closing body width direction.
The movable pulley portion 53 may be directly supported with respect to the base 51, or may be indirectly supported via a locking piece portion 54 described later.

  The locking piece portion 54 is provided so as to move integrally with the movable pulley portion 53 in the opening / closing body width direction. The locking piece 54 is formed so as to come into contact with the end of the winding body 32a of the winding shaft 32 when the slat 11a moves in the opposite direction (left direction in the figure) in the opening / closing body width direction. According to the illustrated example, it is formed in an L shape.

  The string-like member 55 is a long member having appropriate strength and flexibility, and is constituted by, for example, a string or a wire.

According to the reverse direction moving means 50 having the above configuration, as shown in FIG. 4B, when the slat 11a moves in the reverse direction (left direction in the illustrated example), the reverse direction moving means 50 is locked. The piece 54 is locked to the winding shaft 32. As shown in FIGS. 5 (a) and 5 (b), the locking piece 54 and the movable pulley 53 are opposed to the base 51 (see FIG. 5). According to the example shown, the object to be detected 52 moves to the one side by an amount approximately double the amount of movement of the moving pulley 53.
Therefore, when the detected body 52 protrudes to the one side from the other slats 11a and rotates along with the rotation of the winding shaft 32, the detected body 52 comes into contact with the flexure piece portion 41 of the shift detection unit 40.

  The reverse movement means 50 may be provided on all or a part of the plurality of slats 11a, but at least the first turn of the opening / closing body 10 wound around the winding shaft 32. It is preferable to be provided in the slat 11a.

  Therefore, according to the opening / closing device 1 configured as described above, due to vibration during the opening / closing operation of the opening / closing device 1, some of the slats 11a have one and the other in the opening / closing body width direction. Regardless of the case where it protrudes in any way, it can be detected by the common deviation detection unit 40, and further, an alarm is issued in response to the detection, or the opening / closing operation of the opening / closing body 10 is stopped. It is possible to control such as.

In addition, although the opening / closing apparatus 1 of the said structure showed an example of the slat shutter which comprised the opening / closing body 10 from the several slat 11a, as another example, the pipe which comprised the opening / closing body by the several pipe connected by the link It is also possible to use a shutter, a sheet shutter in which an opening / closing body is constituted by a flexible sheet or a net, a panel shutter in which both ends of the panel are suspended by a chain or the like.
That is, the opening / closing body 10 can have a mode in which members other than slats (for example, sheet materials, nets, pipes, panel-like members, etc.) and members other than slats and slats are appropriately combined.

  Further, according to the above-described embodiment, the winding shaft 32 has a winding body 32a integrally with the shaft body 32b that is rotatably supported. However, as another example, the winding shaft 32 is supported so as not to rotate. It is also possible to adopt a mode in which the winding body rotates freely around the shaft body.

  Moreover, according to the said embodiment, although the shift | offset | difference detection part 40 was provided in the bearing bracket 33, as another example, the aspect fixed to immovable parts other than the bearing bracket 33 (for example, storage case 31 grade | etc.,) It is also possible to do.

  In addition, according to the above-described embodiment, the shift detection unit 40 is configured to detect the shift portion 11a1 of the slat 11a. However, as another example, the shift portion 11a1 of the slat 11a is configured to be a non-contact sensor (for example, a phototube). It is also possible to make a non-contact sensing using a proximity sensor or the like. Similarly, the switch unit 42 constituting the deviation detection unit 40 may be the non-contact sensor.

  In addition, the displacement detection unit 40 configured as described above detects the displacement portion 11a1 of the slat 11a indirectly through the flexure piece portion 41, thereby preventing the displacement detection unit 40 from being damaged. From this point of view, it is possible to omit the bending piece 41 from the deviation detection unit 40 and directly detect the deviation 11a1 of the slat 11a by the actuator unit of the switch unit 42.

In the illustrated example, as a particularly preferable form, both the shift portion 11a1 of the opening / closing body 10 and the detected object 52 are detected by the common shift detection unit 40. However, as another example, the shift portion 11a1 is detected. And the detected object 52 may be detected by two different types of detection units.
In this case, the two types of detection units may have an aspect in which the protruding amount of the detection object 52 is different, an aspect in which one is a contact sensor and the other is a non-contact sensor.
According to such a configuration, it is determined to which side the opening / closing body 10 has shifted laterally based on the detection signals of the two types of detection units, and the determination result is stored as history information or notified to the user. Or the like.

  In addition, when two types of detection units are provided as described above, these two types of detection units need only be provided on one side in the opening / closing body width direction. It is also possible to provide it. In the latter case, the lateral displacement only in one direction of the slat 11a is detected twice by the two types of detection units. For example, there are precision parts such as a switch control unit in the one direction side. This is effective when it is necessary to improve the lateral displacement detection performance on the one-direction side in order to protect the precision parts.

  In the case where it is sufficient to detect only the lateral displacement to one side as the opening / closing device, the backward moving means 50 may be omitted and the displacement detecting unit 40 for sensing the lateral displacement of the slat 11a may be used. In this case, the shift detector 40 needs to be provided on the side where a lateral shift is expected to occur. However, when it is inconvenient to provide the deviation detection unit 40 on the side, for example, when any member arranged on the side gets in the way or when the assembly is complicated by the member, the deviation detection is performed on the side. Instead of providing the portion 40, it is possible to deal with by providing a reverse direction moving means 50 and a deviation detecting portion 40 for detecting the detected object 52 of the reverse direction moving means 50 on the opposite side of the side.

In addition, when the common deviation detection unit 40 is provided as described above, the deviation detection unit 40 is configured so that the drive device 34 in the opening / closing body width direction (more details) from the viewpoint of shortening the control signal line and the like to make the wiring simple. Is preferably provided on the side having the control circuit of the driving device 34 (see FIG. 3).
Moreover, also when providing two types of detection parts only in one side of the opening-and-closing body width direction as mentioned above, it is preferable to provide these two types of detection parts in the side which has the drive device 34 in an opening-and-closing body width direction.
In particular, the displacement detector 40 for detecting the reverse direction moving means 50 is preferably arranged on the side of the driving device 34 in the opening / closing body width direction from the above viewpoint. If this is not the case, the driving device 34 is provided. The shift detection unit 40 is provided on the reverse direction side that is not the side, and the control signal line and the like become long.

  Further, according to the above-described embodiment, the reverse direction moving means 50 is configured to guide the string-like member 55 while the movable pulley portion 53 rotates. However, as another example of a simpler structure, It is also possible to adopt a configuration in which the string-like member 55 is made non-rotatable and the string-like member 55 is slid and guided by the movable pulley portion 53.

  The reverse direction moving means 50 may be configured to cause the deviation detection unit 40 to detect the detected object 52 when the slat 11a moves in the reverse direction with respect to the one, and to detect the deviation. In the embodiment, a mode using a pulley mechanism is used. However, as another example, a mode using a gear mechanism, a mode using a link mechanism, a mode using a mechanism using a rack and a pinion, and the like are also possible. .

  Moreover, according to the said embodiment, although the latching piece part 54 of the reverse direction moving means 50 was made to contact | abut to the edge part of the winding body 32a, as an example, the engagement of the reverse direction moving means 50 is used. The stop piece 54 is a part that does not cause lateral displacement in the opening / closing body 10, a member attached to the opening / closing body 10 (for example, a retaining member that prevents the opening / closing body 10 from being pulled out from the guide rail 20, and the opening / closing device as a panel shutter). In this case, it is also possible to adopt a configuration in which the panel for opening and closing member configuration is brought into contact with a chain or the like for suspending.

  In the above embodiment, the slat 11a is provided with the reverse direction moving means 50. As another example, the object to be detected is moved to the end of the winding body 32a by moving the slat 11a in the reverse direction. It is also possible to provide reverse movement means for projecting in one direction.

DESCRIPTION OF SYMBOLS 1: Opening and closing device 10: Opening and closing body 11: Opening and closing body main body 11a: Slat 11a1: Deviation part 32: Winding shaft 32a: Winding body 32b: Shaft main body 33: Bearing bracket 34: Drive device 40: Deviation detection part 41: Deflection One part 42: Switch part 50: Reverse direction moving means 51: Base 52: Object to be detected 53: Moving pulley part 54: Locking piece part 55: String-like member

Claims (9)

In an opening / closing device provided with an opening / closing body that performs a closing operation so as to partition a space, and that is stored by rotating the opening / closing body around an axis on the opening direction side, and rotating out in the opposite direction.
An opening / closing device provided with a displacement detecting unit so as to detect a rotating displacement portion when the rotation is performed in a state where a part or all of the opening / closing body is displaced to one side in the opening / closing body width direction. apparatus. The shaft is a winding shaft that winds or unwinds the opening / closing body,
The opening / closing apparatus according to claim 1, wherein the shift detection unit is provided at a position corresponding to a first round portion of the opening / closing body wound around the winding shaft.   The said shift | offset | difference detection part is comprised so that a detection may be performed in the closing operation of the said opening / closing body, without performing a detection in the opening operation | movement of the said opening / closing body. Switchgear.   The deviation detecting unit is operated by a bending piece portion fixed to the stationary part at the other end side so that the one end side is bent in contact with the rotating deviation portion, and a predetermined amount of bending of the bending piece portion. 4. The switchgear according to claim 1, further comprising a switch unit that outputs a detection signal. The deviation detecting unit is operated by a bending piece portion fixed to the stationary part at the other end side so that the one end side is bent in contact with the rotating deviation portion, and a predetermined amount of bending of the bending piece portion. And a switch unit for outputting a detection signal.
The flexure piece is provided so as to bend in one direction when abutting on the shift portion rotating in the storage direction, and bend in the other direction when abutting on the shift portion rotating in the feeding direction.
4. The switchgear according to claim 3, wherein the switch portion is provided to receive and operate the bending piece portion on the other direction side of the bending piece portion.   6. The switchgear according to claim 4 or 5, wherein the bent piece projects a part abutting against the shift part toward the open / close body with respect to the switch part in the open / close body width direction. A guide rail that surrounds the widthwise end of the opening / closing body that is fed out and guides it in the closing direction;
The opening / closing apparatus according to any one of claims 1 to 6, wherein the shift detection unit is provided outside the guide rail in a width direction of the opening / closing body. The opening / closing body has a slat connected in the opening / closing direction,
The opening / closing device according to any one of claims 1 to 7, wherein the shift portion is a portion in which the slat protrudes by shifting in the opening / closing body width direction. A driving device for opening and closing the opening and closing body;
The switchgear according to any one of claims 1 to 8, wherein the shift detection unit and the drive device are disposed on the same direction side in the width direction of the switchgear.

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