JP2006200222A - Opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening and closing device capable of making a predetermined control in accordance with the approximately full closure of an opening and closing body by a simple structure and having good operationality in that case. <P>SOLUTION: In the opening and closing device equipped with the opening and closing body 10 making closing operation by sliding the end section in the closing direction, a sliding body 54 slidable between a projecting position projecting in the closing direction of the opening and closing body from the end section in the closing direction of the opening and closing body 10 and a retracted position retracting a predetermined quanta in the opening direction and a proximity sensor 41 provided to the sliding body 54, when the sliding body 54 slides the proximity sensor 41 into the retracted position, the opening and closing body 10 is sensed to be installed so as to give out a sense signal, and a predetermined treatment can be carried out in accordance with the sense signal of the proximity sensor 41. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an opening / closing device such as a shutter device including an overhead door, a door, a sliding door including a shutter, a sash window, a roll screen, a blind, a gate, a gate, a sliding wall device, etc. Is.

2. Description of the Related Art Conventionally, in an opening / closing device that recognizes that the opening / closing body is in the fully closed position and performs predetermined control, the opening / closing body (winding-type shutter S), such as that described in Patent Document 1, is used. The limit switch device (27) interlocking with the opening / closing operation of the opening / closing member is provided, and when the opening / closing body (winding shutter S) is located at the lower limit position (b), it is stopped by a contact signal emitted from the limit switch device (27). There is something to let you do.
However, according to the prior art, since it is necessary to provide a plurality of mechanical counter mechanisms having a complicated configuration in accordance with the desired number of opening / closing body stop positions, a mechanical malfunction or failure may occur. Is concerned.

As another conventional technique, a movable member that can slide in the vertical direction is provided at the lower end of the opening / closing body, and the contact type sensor senses that the movable member slides in contact with an object on the closing direction side. The invention has been known (see Patent Document 2), and by using the present invention, the contact sensor senses that the opening / closing body is in contact with the floor surface, and the opening / closing body is stopped. Is also possible.
However, in such a configuration, when the sliding failure of the movable member, the detection failure of the contact sensor, or the like occurs, the failure may not be detected.
JP 61-243624 A JP-A-9-170389

  The present invention has been made in view of the above-described conventional circumstances, and the subject of the present invention is that it has a simple structure and can perform predetermined control according to the fact that the opening / closing body is substantially fully closed. It is an object to provide a switchgear having good operability.

  In order to solve the above-described problems, a first invention includes an opening / closing body that performs a closing operation by sliding an end portion in the closing direction, a protruding position that protrudes from the closing direction end portion of the opening / closing body in the closing direction, and an opening direction. In an opening / closing device comprising a slide body that is slidable between a retracted position retracted by a predetermined amount and a proximity sensor provided on the slide body, the proximity sensor is moved when the slide body slides to the retracted position. It is arranged to detect the opening / closing body and to generate a detection signal thereof, and to perform a predetermined process according to the detection signal of the proximity sensor.

Here, the opening / closing apparatus according to the present invention may be any apparatus that includes at least an opening / closing body operable in a closing direction and is configured to partition a space by a sliding operation of the opening / closing body. A mode in which the opening / closing body is used to perform only a closing operation, a mode in which the opening / closing body is used to perform both an opening operation and a closing operation, and the like are included.
The opening / closing device includes an aspect in which the opening / closing body is opened / closed by winding or unwinding the winding body with a winding shaft, an aspect in which the opening / closing body is extended / stored without being wound up, and the like.

  Further, as a preferable specific example of the opening / closing body, a mode in which a plurality of slats and pipes are continuously provided in the opening / closing direction, or a single or a plurality of panels, a sheet-like object, and a net-like object are provided in the opening / closing direction. Aspect, or a mode in which slats, panels, pipes, sheet-like materials, net-like materials, etc. are appropriately combined.

  Moreover, as a preferable specific example of the slide body, a member for supporting a sensor (for example, a photoelectric sensor) for non-contact sensing of an obstacle is used.

  Further, “the proximity sensor is arranged so as to sense the opening and closing body and issue a detection signal when the slide body slides to the retracted position” means that the slide body is more specifically described. Is in the protruding position, there is no sensing object of the proximity sensor, no sensing signal is issued from the proximity sensor, and when the slide body is in the retracted position, the proximity sensor is opened and closed. The proximity sensor is arranged so as to sense a part of the body and generate a sensing signal.

The configuration of “performing predetermined processing according to the sensing signal of the proximity sensor” includes an aspect in which the predetermined processing is performed when the sensing signal of the proximity sensor is an ON signal, A mode in which predetermined processing is performed when the sensing signal is an OFF signal, a mode in which predetermined processing is performed when the sensing signal of the proximity sensor is a signal that repeats ON / OFF in a predetermined pattern, etc. Including.
That is, the sensing signal includes an ON signal, an OFF signal, a signal obtained by combining an ON signal and an OFF signal in a predetermined pattern, and the like.
The proximity sensor may be any sensor that can sense the approach / separation of a sensed object and the presence / absence of a sensed object in a non-contact manner. , Capacitance type, ultrasonic type, photoelectric type, magnetic type and the like.

More specifically, the predetermined process means a process executed by a control circuit or the like that controls the switchgear.
Specific examples of the predetermined process include a process for determining that the proximity sensor is abnormal, a process for generating an alarm, and a process for stopping the opening / closing body.

  In the second invention, the opening / closing body is composed of an opening / closing body main body and a movable seat plate movable at a closing direction end of the opening / closing body main body in the opening / closing body opening / closing direction by a predetermined amount. The sliding body is sensed at the retracted position of the slide body, and is disposed on the slide body at the projecting position of the slide body so as to sense the movement state of the movable seat plate. It is provided with sensing object estimation means for estimating whether the sensing object is between the opening / closing body body and the moving state of the movable seat plate, and the sensing object is the opening / closing body body by the sensing object estimation means. When the estimation is performed, the predetermined processing is performed according to the sensing signal of the proximity sensor, and when it is estimated that the sensing target is the moving state of the movable seat plate, the sensing signal of the proximity sensor is used. I will do other processing Characterized in that the.

  Here, in the configuration of “detecting the moving state of the movable seat plate”, a mode in which a member that operates as the movable seat plate moves in the opening / closing body opening direction is detected, or in the opening / closing body opening direction. The mode etc. which made it sense directly the movable seat plate at the time of moving are included.

More specifically, the detection target estimation means determines whether the detection target of the proximity sensor is the opening / closing body or whether the detection target of the proximity sensor is the moving state of the movable seat plate. It is a means to distinguish.
That is, since the proximity sensor slides with the slide body, the object to be detected by the proximity sensor changes depending on the slide, for example, whether it is an opening / closing body main body or a movable seat plate. With the configuration of only the proximity sensor, it is impossible to determine what the sensing object is. For this reason, the present invention includes the sensing object estimation means as means for making the determination.
As a specific example of the sensing object estimation means, it is estimated whether the sensing object of the proximity sensor is the moving state of the opening / closing body body or the movable seat plate according to the opening / closing position of the opening / closing body. A mode in which the detection target of the proximity sensor is estimated based on a signal pattern of the proximity sensor, which is the moving state of the opening / closing body and the movable seat plate, Examples include a mode in which it is estimated which of the opening / closing body main body and the movable seat plate is moved according to the position.

  In the third invention, the sensing object estimation means includes predetermined range position detection means for detecting that the closing direction end of the opening / closing body is located within a predetermined range near the fully closed position, and the predetermined range. When sensing by the position detecting means, it is estimated that the sensing object by the proximity sensor is the opening / closing body, and when there is no sensing, the sensing object by the proximity sensor is the moving state of the movable seat plate. It is characterized by estimating.

Here, as a specific example of the predetermined range position detection means, a rotation amount of a driving source for closing the opening / closing body is detected by a rotation amount detection means such as an encoder or a counter mechanism, and the rotation amount detection means. For example, it is possible to determine whether or not the detection position according to is within a predetermined range.
Further, as another example of the predetermined range position detection means, a contact type or non-contact type that senses the closing direction end of the opening / closing body on a stationary part (for example, a guide rail or a frame member) near the fully closed position. Examples include a mode in which a sensor is provided and it is determined whether or not the end of the opening / closing body in the closing direction is sensed by the sensor.

  In the fourth aspect of the invention, the sensing object estimation means is provided with a notched portion in the opening / closing body, and a sensed portion that can be sensed by the proximity sensor at a portion below and above the notched portion. In the above configuration, when a signal of a pattern that changes OFF and ON is detected by the proximity sensor, it is estimated that the object to be detected by the proximity sensor is the moving state of the movable seat plate, and OFF by the proximity sensor. It is means for estimating that the sensing object by the proximity sensor is the opening / closing body body when a signal having a pattern that changes to ON, OFF, ON is sensed.

  According to a fifth aspect of the invention, there is provided a fully closed position detecting means for detecting that the opening / closing body is at the fully closed position. In response to this, the predetermined processing is performed.

  Further, the sixth invention is characterized in that the presence or absence of abnormality of the proximity sensor is determined as the predetermined processing.

  In the seventh invention, the proximity sensor is the first proximity sensor, and the second proximity sensor is configured to sense the moving state of the movable seat plate when the slide body is in the retracted position. A predetermined process is performed according to a combination of a sensing signal from the first proximity sensor and a sensing signal from the second proximity sensor.

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 the present specification, the “opening / closing body width direction” means a direction 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 to partition or open the space.

Since the present invention is configured as described above, the following effects can be obtained.
According to the first invention, when the opening / closing body during the closing operation comes close to a contact target portion (for example, a floor surface, the ground, a frame member, etc.) and the slide body contacts the corresponding contact target portion, the slide The body slides in the opening direction relative to the opening / closing body. And along with the slide, the proximity switch integrated with the slide body also slides in the opening / closing body opening direction, the position of the proximity sensor becomes a position where the opening / closing body can be sensed, and according to the detection signal by the proximity sensor, Predetermined processing is performed.
Therefore, with a simple structure, predetermined control can be performed according to the fact that the opening / closing body is substantially fully closed, and the operability at that time is also good.

  Furthermore, according to the second invention, a single proximity sensor can distinguish and sense two sensing objects of the opening / closing body body and the moving state of the movable seat plate, and a process corresponding to each sensing object. Can also be performed.

  Furthermore, according to the third aspect of the invention, the sensing object estimation unit can have a specific configuration with good productivity.

  Furthermore, according to the fourth aspect of the invention, the sensing object estimation means can have a specific configuration with better productivity.

  Further, according to the fifth invention, presence or absence of sensing by the fully closed position detecting means is added as a condition for performing the predetermined processing. Therefore, it is possible to improve the certainty of determination when performing the predetermined processing.

  Furthermore, according to the sixth aspect, it is possible to recognize whether there is an abnormality in the proximity sensor.

  Furthermore, according to the seventh invention, predetermined processing can be executed according to the pattern of the sensing signals in the plurality of proximity sensors, and fine control according to the pattern of the plurality of sensing signals is possible. Become.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
An example according to the present embodiment is arranged in or inside an opening part or inside of a housing such as a house, building, warehouse, factory, underground mall, tunnel, vehicle loading platform, etc., and opens and closes the opening part or partitions the space inside the housing. It will be described as a shutter device that opens and closes.

The opening / closing device A includes an opening / closing body 10 that opens and closes by sliding an end portion in the closing direction, and a guide that surrounds and guides the end portion of the opening / closing body 10 in the width direction (left-right direction in the opening / closing device A in FIG. 1). Rail 20, winding device 30 that winds and unwinds opening / closing body 10, first object sensing means 40 that senses an object closer to the closing direction than opening / closing body 10, and closing direction side of opening / closing body 10 And second object sensing means 50 for non-contact sensing the object at a position closer to the opening / closing body closing direction than the first object sensing means 40.
When the opening / closing body 10 is substantially fully closed, the opening / closing device A slides the slide body 54 constituting the second object sensing means 50 in the opening / closing body opening direction, and is fixed to the slide body 54. The proximity sensor 41 thus detected senses the opening / closing body 11 of the opening / closing body 10 and performs a predetermined process according to the sensing signal.

  The opening / closing body 10 constitutes an opening / closing body main body 11 by connecting a plurality of so-called slats formed by bending a horizontally long substantially rectangular metal plate so as to rotate between the vertically adjacent slats. As shown in FIGS. 2 and 3, the movable seat plate 12 extends across the opening / closing body width direction through the connecting member 11 a at the end of the body body 11 on the closing direction side (lower side in the illustrated example). Connected.

  The movable seat plate 12 is connected to the lower end of the connecting member 11a connected to the lowermost end portion of the opening / closing body main body 11 via the swinging piece 12a, and the swinging piece 12a swings in the opening / closing body opening / closing direction. It moves freely by a predetermined amount.

The swing piece 12a is pivotally supported in the opening / closing body width direction between the connecting member 11a and the movable seat plate 12 so as to swing by the movement of the movable seat plate 12 in the opening / closing body opening / closing direction. A sensed part 12a1 for sensing the proximity sensor 41 is integrally provided.
The sensed part 12a1 is provided so as to swing substantially in the thickness direction of the opening / closing body in the space in the connection member 11a. More specifically, the slide body 54 described later opens and closes from the end of the opening / closing body 10 in the closing direction. As shown in FIG. 3, when the movable seat plate 12 moves in the opening / closing body opening direction relative to the connection member 11a, the proximity sensor 41 approaches and moves at the protruding position protruding in the body closing direction. When the seat plate 12 moves in the opening / closing body closing direction relative to the connection member 11a, the seat plate 12 is separated from the proximity sensor 41.
Even when the slide body 54 is not in the protruding position, the sensed portion 12a1 of the swinging piece 12a is the opening / closing body of the movable seat plate 12 as in the case where the slide body 54 is in the protruding position. It can swing in conjunction with movement in the opening and closing direction.

  Further, the guide rail 20 surrounds the end of the opening / closing body 10 in the width direction by drawing or extrusion molding of an aluminum alloy material, bending of another metal plate (for example, a steel plate or a stainless plate), or the like. The formed member and disposed between the winding device 30 and the contact target portion p (for example, a floor surface, the ground, a frame member, etc.) seated by the opening / closing body 10.

  In addition, the winding device 30 includes a winding shaft 32 that winds and unwinds the opening / closing body 10 in a storage case 31 in which an opening for allowing the opening / closing body 10 to appear and retract on the lower side, and the winding shaft. A drive source 33 that electrically and bidirectionally rotates 32 via power transmission means such as a chain and a sprocket, and a control unit 34 that controls the drive source 33 are provided.

The drive source 33 is an electric motor that is electrically wired so as to perform forward rotation, reverse rotation, stop, and the like according to a control signal from the control unit 34.
On the output shaft of the drive source 33, there is position detection means 33a for sensing that the closing direction end of the opening / closing body 10 (specifically, the movable seat plate 12) is located within a predetermined range x near the fully closed position. Is engaged.
The predetermined range x is a range between the position of the contact target part p and a position away from the contact target part p by a predetermined dimension H toward the opening / closing body opening direction. This dimension H is set to be approximately the same as or slightly longer than the dimension in which a slide body 54 described later projects in the opening / closing body closing direction from the opening / closing body 10.

The position detecting means 33a is a means for detecting the position of the opening / closing body 10 in the opening / closing direction, and a predetermined range position detection for detecting that the end in the closing direction of the opening / closing body 10 has entered the predetermined range x near the fully closed position. And a fully-closed position detecting means for sensing that the opening / closing body 10 has reached the fully-closed position.
More specifically, the position detection unit 33a counts the rotation amount of the output shaft of the drive source 33 by an encoder device, a counter device, or the like, and when the count value reaches a predetermined value, the position detection unit 33a returns to the control unit 34. It is set as the structure which emits a signal.
The position detecting means 33a is provided with a contact type or non-contact type sensor (for example, a proximity switch, a limit switch, a photoelectric sensor, etc.) on the guide rail 20, and the end of the opening / closing body 10 in the closing direction by the sensor. May be configured to sense that the vehicle has entered the predetermined range x or that the closing direction end of the opening / closing body 10 has reached the fully closed position.
Further, in the position detection means 33a, the end of the opening / closing body 10 in the closing direction is at any one of a plurality of positions (for example, a fully open position, a fully closed position, a position within a predetermined range x, etc.). The configuration may be such that this is detected by a single position detection device, or the configuration may be such that it is detected by a plurality of position detection devices.

Further, the first object sensing means 40, when the movable seat plate 12 is moved in the opening / closing body opening direction due to the contact of the object, the swing of the swing piece 12a accompanying the movement is described later as a slide body. The proximity switch 41 is fixed to 54 and sensed.
That is, according to the first object sensing means 40, when an object comes into contact with the movable seat plate 12 from the closing direction side, the movable seat plate 12 slides in the opening / closing body opening direction. Then, the swing piece 12a swings with the slide, the sensed part 12a1 on one end side (the upper end side in the illustrated example) of the swing piece 12a is sensed by the proximity switch 41, and the sense signal is It is transmitted to the control unit 34.

  The second object sensing means 50 includes a discharge-side non-contact sensing unit 50a disposed on one end side in the opening / closing body width direction, and a capture-side non-contact sensing unit 50b disposed on the other end side in the opening / closing body width direction. And the capturing medium non-contact sensing unit 50b captures the sensing medium emitted from the emission-side non-contact sensing unit 50a side, so that the emission-side non-contact sensing unit 50a and the capturing-side non-contact sensing unit 50b A sensing medium path s is formed therebetween.

  The discharge-side non-contact sensing unit 50a slides with a predetermined distance in the opening / closing body opening / closing direction with respect to the opening / closing body 10 and is engaged with the guide rail 20 so as to be guided by the guide rail 20 in the opening / closing body opening / closing direction. 54 and a discharge portion 51 that discharges the sensing medium from the inside of the slide body 54 in the substantially opening / closing body width direction, and the opening / closing body closing direction (downward in the illustrated example) from one end of the opening / closing body 10 in the width direction. It is arrange | positioned so that it may protrude.

  Similarly, the capture-side non-contact sensing unit 50b is engaged in the guide rail 20 so as to slide in the opening / closing body opening / closing direction by a predetermined distance with respect to the opening / closing body 10 and guided by the guide rail 20 in the opening / closing body opening / closing direction. And a capturing unit 52 that captures the sensing medium released from the discharge unit 51 in the width direction of the opening / closing body within the slide body 54 and opens / closes from the other end of the opening / closing unit 10 in the width direction. It is arranged so as to protrude in the body closing direction.

According to the illustrated example, each slide body 54 has a substantially hollow rectangular parallelepiped frame shape that is long in the vertical direction, and the engagement groove 54e in the slide body 54 has an engagement portion 11a1 of the connection member 11a at the lower end of the opening / closing body main body 11. Is engaged with the connecting member 11a and the movable seat plate 12 so as to cover the end portions in the width direction.
The slide body 54 is guided by a rail (not shown) in the guide rail 20 and protrudes from the end of the opening / closing body 10 in the closing direction, and a predetermined amount from the protruding position to the opening direction. It is mounted so that it can slide between the retracted and retracted positions.

  Further, the release unit 51 and the capture unit 52 may be configured to capture the sensing medium emitted from the release unit 51 in the opening / closing body width direction by the capture unit 52. According to a preferred example of the present embodiment, the detection medium is used. A photoelectric sensor that emits infrared rays from the emitting unit 51 and receives light by the capturing unit 52 is used.

  An electric wiring guide member 55 is fixed to the outside of the slide body 54. The electric wiring guide member 55 is a well-known member that guides the existing electric wiring in the opening / closing body opening / closing direction while flexibly bending and deforming, and the electric wiring of the discharge unit 51, the capturing unit 52, the proximity sensor 41, and the like. The cover is led to the control unit 34.

  According to the second object sensing means 50 configured as described above, when an obstacle enters between the emitting unit 51 and the capturing unit 52, the path s of the sensing medium is blocked by the obstacle, and the sensing medium enters the capturing unit 52. Since it is not captured, it becomes possible to recognize the intrusion of the obstacle.

Further, the slide body 54 of the discharge side non-contact sensing unit 50a is provided with a proximity sensor 41 constituting the first object sensing means 40.
The proximity sensor 41 is a general sensor that senses an approaching metal object and transmits a sensing signal thereof. At the projecting position of the slide body 54, the sensed part 12a1 of the swing piece 12a can be sensed, and At the retracted position of the slide body 54, the open / close body 11 is mounted on the slide body 54 so as to be detectable (see FIG. 3A).
In addition, according to a preferable aspect of the present embodiment, the proximity sensor 41 that performs non-contact sensing of the sensed object is used in order to ensure good operation and durability of the switchgear A, Instead of the proximity sensor 41, a sensor (for example, a limit switch or the like) that senses contact with the sensed object may be used.
Then, the sensing signals from the emission unit 51, the capture unit 52, the proximity sensor 41, and the like are transmitted through the electrical wiring in the electrical wiring guide member 55 and input to the control unit 34, respectively. It is also possible to adopt a configuration in which a sensing signal from the proximity sensor 41 or the like is transmitted to the control unit 34 via a wireless medium such as infrared rays or radio waves.

Further, the control unit 34 electronically processes an electrical signal input from an operation unit (not illustrated) (operation BOX, remote controller, computer that issues an operation signal, portable terminal, activation sensor, etc.), and the processing result Is a control circuit that outputs a control signal according to the above to the drive source 33 to cause the drive source 33 to rotate forward, reverse, stop, etc.
The control unit 34 is configured by a programmed logic circuit using, for example, a microcomputer or a programmable controller so that the circuit configuration, setting values for control, and the like can be easily changed according to the field situation. However, it is also possible to provide a wired logic circuit using a relay circuit or other electronic circuit.

Next, processing by the control unit 34 when closing the opening / closing body 10 will be described in detail based on an example of a flowchart shown in FIG.
First, the control unit 34 causes the opening / closing body 10 to perform a closing operation in response to a closing signal from an operation unit (not shown) (operation BOX, remote controller, computer that issues an operation signal, portable terminal, etc.) (step 1).

Next, the control unit 34 determines whether or not an obstacle closer to the closing direction than the opening / closing body 10 is detected in a non-contact manner based on the presence / absence of a detection signal from the second object detection means 50 (step 2). If an object is detected in a non-contact manner, the process proceeds to step 4. If an obstacle is not detected in a non-contact manner, the process proceeds to step 3.
In step 3, it is determined whether or not an obstacle closer to the closing direction than the opening / closing body 10 is sensed by contact based on the presence or absence of a sensing signal from the first object sensing means 40. If the process is shifted to 4 and an obstacle is not touched, the process shifts to step 6.
In step 4, the opening / closing body 10 is temporarily stopped by controlling the drive source 33, then reversely operated for a predetermined time, and then stopped again. Therefore, the impact on the obstacle by the opening / closing body 10 can be minimized.
In step 5, it is determined that there is an obstacle on the closing direction side of the opening / closing body 10 (step 5). Further, in this step 5, an alarm or the like that reports that there is an obstacle on the closing direction side of the opening / closing body 10 may be issued as necessary.

Further, in step 6, it is determined whether or not the closing direction end of the opening / closing body 10 is positioned within the predetermined range x by the position detecting means 33a, and it is determined that the closing direction end is positioned within the predetermined range x. If so, the process proceeds to step 8; otherwise, the process proceeds to step 7.
In step 7, it is assumed that the object to be detected by the proximity sensor 41 is the swing piece 12 a in the movable seat plate 12, and the process returns to step 2.
In step 8, the object to be detected by the proximity sensor 41 is estimated to be the opening / closing body 11, and the process proceeds to the next step 9.

In other words, it is impossible to determine whether the object to be detected by the proximity sensor 41 is the swing piece 12 a in the movable seat plate 12 or the opening / closing body main body 11 from only the detection signal from the proximity sensor 41.
The above steps 6 to 8 are steps showing the operation as the sensing object estimation means for estimating the sensing object by the proximity sensor 41, and the proximity sensor when the closing direction end of the opening / closing body 10 is located within the predetermined range x. When the sensing object 41 is estimated to be the swing piece 12a and the closing direction end of the opening / closing body 10 is located on the opening direction side with respect to the predetermined range x, the sensing object by the proximity sensor 41 is assumed to be the swing piece 12a. It is estimated that.
In the process in step 8, as described above, after “estimating that the object to be detected by the proximity sensor 41 is the open / close body 11”, the closing speed of the open / close body 10 is reduced as necessary. You may make it improve the safety | security of the closing operation | movement of the opening-closing body 10 by performing another process.

In step 9, it is determined whether or not there is a sensing signal from the proximity sensor 41, that is, whether the proximity sensor 41 senses the opening / closing body 11. If there is a sensing signal, the process proceeds to step 10. If there is no sensing signal, the process proceeds to step 13.
The timing of sensing the opening / closing body main body 11 by the proximity sensor 41 may be immediately after the sliding body 54 is slid in the opening direction depending on the shape of the opening / closing body main body 11 and the connection member 11a, the configuration of the control unit 34, and the like. It is also possible to make the opening / closing body 10 immediately before or fully closed.
Furthermore, in step 10, it is determined whether or not the opening / closing body 10 is in the substantially fully closed position by the position detection means 33a. If it is determined that the opening / closing body 10 is in the substantially fully closed position, the process proceeds to the next step 11. If not, the process in step 10 is repeated.

  In step 11, the opening / closing body 10 is stopped by controlling the drive source 33, and in the next step 12, it is recognized that the proximity sensor 41 is in a normal state with no failure or the like.

In step 13, it is determined whether or not the opening / closing body 10 is in a substantially fully closed position by the position detection means 33 a, and if the opening / closing body 10 is in a substantially fully closed position, the process proceeds to the next step 14. If not, the process proceeds to step 9 above.
In step 14, the opening / closing body 10 is stopped by controlling the drive source 33, and in step 15, the proximity sensor 41 is recognized as being in an abnormal state, and an alarm is issued as necessary.
If necessary, appropriate processing steps such as invalidating the sensing by the emitting unit 51 and the capturing unit 52 between the step 9 and the step 11 or between the step 9 and the step 15 are performed. May be added.

  That is, in the above steps 9 to 15, when the proximity sensor 41 senses the opening / closing body 11 and when the opening / closing body 10 is in the substantially fully closed position, the state is determined to be a normal state. When the proximity sensor 41 does not sense the opening / closing body main body 11 and the opening / closing body 10 is in the substantially fully closed position, it is determined that the proximity sensor 41 is in an abnormal state. . The abnormal state of the proximity sensor 41 includes a failure of the proximity sensor 41 itself, a sliding failure of the slide body 54, and the like.

  Therefore, according to the opening / closing device A configured as described above, when the opening / closing body 10 is substantially fully closed, whether there is an abnormality in the proximity sensor 41 for detecting contact with an obstacle closer to the closing direction than the opening / closing body 10. Can be judged. As a result, it is possible to quickly recognize whether there is a failure of the proximity sensor for touching an obstacle on the side closer to the closing direction than the opening / closing body 10, or whether there is a sliding failure of the slide body 54.

  Next, another example of the switchgear according to the present invention will be described. In addition, since the other examples of the switchgear described below are obtained by partially changing the configuration of the switchgear A, the same parts as those of the switchgear A will be described in detail by using the same reference numerals. Is omitted.

  As shown in FIG. 2, the opening / closing device B uses the proximity sensor 41 in the opening / closing device A as a first proximity sensor 41 ′, and adds a second proximity sensor 42 (indicated by a two-dot chain line in FIG. 2). In accordance with the sensing signals of the two proximity sensors 41 ′ and 42, the presence or absence of an abnormality in each of the proximity sensors 41 ′ and 42 is recognized.

The second proximity sensor 42 is a sensor having substantially the same structure as the proximity sensor 41 described above. When the slide body 54 is in the protruding position, the second proximity sensor 42 faces the space below the opening / closing body 10 and the slide body 54 is in the retracted position. In this case, it is fixed to the slide body 54 so that the sensed part 12a1 of the swing piece 12a can be sensed.
Therefore, according to the second proximity sensor 42, the state where the slide body 54 is in the retracted position and the movable seat 12 is moved in the opening / closing body opening direction, that is, the normal fully closed state of the opening / closing body 10 is recognized. be able to.

Next, in the opening / closing device B, processing by the control unit 34 when the opening / closing body 10 is closed will be described based on an example of a flowchart shown in FIG.
The control flowchart of the switchgear B is a control flowchart (see FIG. 4) of the switchgear A described above, in which the steps after step 8 are changed. Only the processing after step 20 will be described.

In step 20, based on the determination in the previous step, it is estimated that the sensing object by the first proximity sensor 41 ′ is the opening / closing body main body 11.
In the process of step 20, as described above, after “estimating that the object to be detected by the first proximity sensor 41 ′ is the opening / closing body 11”, the closing speed of the opening / closing body 10 is reduced as necessary. It is also possible to improve the safety of the closing operation of the opening / closing body 10 by performing other processes such as the above.

In step 21, it is determined whether or not there is a sensing signal from the first proximity sensor 41 ′. If there is a sensing signal, the process proceeds to the next step 22, and if not, the process proceeds to step 29. Transition.
The sensing signal is a sensing signal after it is estimated that the sensing target is the opening / closing body 11 in a step before Step 21. Accordingly, in this step 21, it is determined whether or not the opening / closing body 11 is detected by the first proximity sensor 41 ′.
The timing of sensing the opening / closing body main body 11 by the first proximity sensor 41 ′ is immediately after the slide body 54 is slid in the opening direction, depending on the shape of the opening / closing body main body 11 and the connection member 11a, the configuration of the control unit 34, and the like. It is also possible to set the opening / closing body 10 immediately before or fully closed.

In step 22, if there is a detection signal from the second proximity sensor 42, the process proceeds to the next step 23, and if not, the process proceeds to step 26.
That is, in this step 22, the movable seat plate 12 moves in the opening / closing body opening direction relative to the opening / closing body main body 11 by the closing direction end of the opening / closing body 10 coming into contact with the contact target portion p, and swings. It is determined whether or not the rocking piece 12a has been detected by the second proximity sensor 42.

Next, in step 23, it is determined whether or not the opening / closing body 10 is in the substantially fully closed position by the position detection means 33a. If the opening / closing body 10 is in the substantially fully closed position, the process proceeds to the next step 24. If not, the process of step 23 is repeated.
In step 24, the opening / closing body 10 is stopped by the control of the drive source 33, and in step 25, it is recognized that both proximity sensors 41 ′ and 42 are normal.

In step 26, the position detection means 33a determines whether or not the opening / closing body 10 is in a substantially fully closed position. If the opening / closing body 10 is in a substantially fully closed position, the process proceeds to the next step 27. If not, the process returns to step 22.
In step 27, the opening / closing body 10 is stopped by the control of the drive source 33, and in step 28, only one of the second proximity sensors 42 is recognized to be abnormal, and an alarm or the like is issued if necessary.

  In step 29, it is determined whether or not the sensed part 12a1 of the swinging piece 12a is sensed by the second proximity sensor 42. If sensed, the process proceeds to the next step 30; In step S33, the process proceeds to step 33.

Then, in step 30, it is determined whether or not the opening / closing body 10 is in the substantially fully closed position by the position detection means 33a. If the opening / closing body 10 is in the substantially fully closed position, the process proceeds to the next step 31. If not, the process of step 30 is repeated.
In step 31, the opening / closing body 10 is stopped by the control of the drive source 33, and in step 32, only the first proximity sensor 41 ′ is recognized to be abnormal, and an alarm is issued as necessary.

In step 33, the position detection means 33a determines whether or not the opening / closing body 10 is in the substantially fully closed position. If the opening / closing body 10 is in the substantially fully closed position, the process proceeds to the next step 34. If not, the process returns to step 21.
In step 34, the opening / closing body 10 is stopped by the control of the drive source 33. Further, in step 35, both proximity sensors 41 'and 42 are recognized as abnormal, and an alarm or the like is issued if necessary.
If necessary, between step 22 and step 24, between step 22 and step 27, between step 29 and step 32, between step 29 and step 35, etc. May be added with appropriate processing steps such as disabling sensing by the emitting unit 51 and the capturing unit 52.

Therefore, according to the opening / closing device B configured as described above, when the opening / closing body 10 is substantially fully closed, one or both of the first proximity sensor 41 ′ and the second proximity sensor 42 have an abnormality such as a failure or a sliding failure. Can recognize whether or not.
Further, when it is confirmed that the detection by the second proximity sensor 42 is normal, it can be recognized that the operation of the swing piece 12a is normal.
In addition, as a condition for determining whether or not the opening / closing body 10 is in the normal fully closed state, a determination (step 22) according to the sensing signal from the second proximity sensor 42 is added. The determination that 10 is in the fully closed state and that there is no abnormality in both proximity sensors 41 ′ and 42 can be made more accurately.

Next, an opening / closing device C as another example of the present invention will be described with reference to FIGS.
The opening / closing device C is obtained by replacing the opening / closing body 10 in the opening / closing device A with an opening / closing body 10 ′ and a control flowchart.
The opening / closing body 10 ′ is provided with a notch 10a ′ in a range extending from the lower end of the opening / closing body main body 11 to the connection member 11a in the opening / closing body 10 and below the notch 10a ′ in the opening / closing body main body 11 and the connection member 11a. The upper portions are detected portions 10b ′ and 10c ′ that can be detected by the proximity sensor 41.

  The notch 10a ′ is a space provided between the slat constituting the lowermost end of the opening / closing body 11 and the connection member 11a. According to the illustrated example, the width direction end of the slat and the connection member 11a. Placed in. It is also possible to replace the notch 10a 'with a through hole.

According to the above configuration, when the proximity sensor 41 slides in the opening / closing body opening direction, the proximity sensor 41 first detects the sensed part 10b ′ on the connecting member 11a, and then changes from the OFF state to the ON state. By detecting ', the state changes from ON to OFF. Further, the proximity sensor 41 changes from the OFF state to the ON state by sensing the sensed part 10c ′ on the opening / closing body 11.
That is, when the slide body 54 normally slides in the opening / closing body opening direction, the detection signal by the proximity sensor 41 changes to OFF, ON, OFF, ON.

Next, a control flowchart of the opening / closing device C using the change pattern of the sensing signal by the proximity sensor 41 will be described (see FIG. 7).
First, the controller 34 closes the opening / closing body 10 in substantially the same manner as in the case of the opening / closing device A (step 41).

  Next, the controller 34 determines whether or not an obstacle closer to the closing direction than the opening / closing body 10 has been detected in a non-contact manner based on the presence / absence of a sensing signal from the second object sensing means 50 (step 42). If an object is detected in a non-contact manner, the process proceeds to step 44. If not, the process proceeds to step 43.

In step 43, it is determined whether or not the sensing signal from the first object sensing means 40, that is, the sensing signal from the proximity sensor 41 is a signal pattern that changes from OFF to ON within a predetermined time, and the sensing signal is turned from OFF to ON. If the signal pattern changes to, the process proceeds to step 44, and if not, the process proceeds to step 43.
That is, when the signal detected by the proximity sensor 41 is a signal pattern that changes from OFF to ON within a predetermined time, the opening / closing body 10 contacts an obstacle on the closing direction side, so that the movable seat 12 is opened / closed. It is presumed that the moving piece 12a is moved in the opening direction and the swinging piece 12a swings and is detected by the proximity sensor 41.
The predetermined time is a time set to an appropriate value based on the closing operation speed of the opening / closing body 10. By appropriately setting the predetermined time, the signal pattern in step 43 is distinguished from the signal pattern in step 46 described later.

  In step 44, the opening / closing body 10 is temporarily stopped by controlling the drive source 33, then reversely operated for a predetermined time, and then stopped again. Further, in step 45, it is determined that there is an obstacle on the closing direction side of the opening / closing body 10, and an alarm or the like is issued if necessary.

In step 46, if the sensing signal by the proximity sensor 41 is a signal pattern that changes to OFF, ON, OFF, ON within a predetermined time, the process proceeds to the next step 47, and if not, The process proceeds to step 50.
That is, when the sensing signal by the proximity sensor 41 is the signal pattern, the proximity sensor 41 sequentially detects the sensed part 10b ′, the notch part 10a ′, and the sensed part 10c ′ as the slide body 54 slides. It is presumed that it has been sensed, and the following processing is executed according to the presumption.
Note that the predetermined time in step 46 is the same as the predetermined time in step 42 described above. That is, when the signal pattern within the predetermined time is only a change from ON to OFF, the process proceeds to step 44 in step 42, and the signal pattern within the predetermined time is ON, OFF. , ON, OFF, the process proceeds to step 47 in step 46.
In addition, the signal pattern may be generated by vibration in the opening / closing body opening / closing direction of the proximity sensor 41 or the like. Therefore, as a more preferable configuration, the following processing may be executed when each ON time is equal to or longer than a specific time (for example, 0.5 seconds) in the signal pattern.

  In step 47, it is determined whether or not the opening / closing body 10 is in the substantially fully closed position by the position detection means 33a. If it is determined that the opening / closing body 10 is in the substantially fully closed position, the process proceeds to the next step 48. If not, the process in step 47 is repeated.

  In step 48, the opening / closing body 10 is stopped by controlling the drive source 33, and in step 49, it is recognized that the proximity sensor 41 is in a normal state with no failure or the like.

In step 50, the position detection means 33a determines whether or not the opening / closing body 10 is in a substantially fully closed position. If the opening / closing body 10 is in a substantially fully closed position, the process proceeds to the next step 51. If not, step 50 is repeated.
In step 51, the opening / closing body 10 is stopped by controlling the drive source 33. Further, in step 52, the proximity sensor 41 is recognized as being in an abnormal state, and an alarm or the like is issued as necessary.
That is, if the sensing signal from the proximity sensor 41 is different from the signal pattern in step 46, it is determined that a failure of the proximity sensor 41 or an abnormality such as a slide failure of the slide body 54 has occurred.
If necessary, appropriate processing steps such as invalidating the sensing by the emitting unit 51 and the capturing unit 52 between the step 48 and the step 49, or between the step 51 and the step 52, etc. May be added. In that case, the timing of executing the processing step can be set to an appropriate timing depending on the shape of the opening / closing body main body 11 and the connection member 11a, the shape of the notch 10a ′, the configuration of the control unit 34, and the like.

It is a front view which shows an example of the switchgear concerning this invention. It is a disassembled perspective view which shows the principal part of the switchgear, and also shows the other example of the switchgear concerning this invention. It is operation | movement explanatory drawing of the movable seat board in the same opening / closing apparatus, (a) shows the state which the movable seat board was located in the opening-and-closing body closing direction side, (b) is the movable seat board located in the opening-and-closing body opening direction side Shows the state. An example of the control flowchart in the switchgear is shown. An example of the control flowchart in the other example of the switchgear concerning this invention is shown. In the other examples of the switchgear concerning the present invention, it is an exploded perspective view showing the important section. An example of the control flowchart in the other example of the same switchgear is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Opening / closing body 11: Opening / closing body main body 12: Movable seat board 12a: Oscillating piece 33a: Position detection means (predetermined range position detection means, fully closed position detection means)
41: Proximity sensor 41 ': First proximity sensor 42: Second proximity sensor 54: Slide body A, B, C: Opening and closing device

Claims (7)

An opening / closing body that is closed by sliding an end portion in the closing direction, and a sliding position that protrudes from the closing direction end portion of the opening / closing body in a closing direction of the opening / closing body and a retracted position that is retracted by a predetermined amount in the opening direction. In an opening / closing device comprising a slide body and a proximity sensor provided on the slide body,
The proximity sensor is arranged to detect the opening / closing body and to generate a detection signal when the slide body slides to the retracted position, and performs a predetermined process according to the detection signal of the proximity sensor. An opening and closing device characterized by that. The opening / closing body is composed of an opening / closing body main body and a movable seat plate that can move a predetermined amount in the opening / closing body opening / closing direction at an end of the opening / closing body main body in the closing direction,
The proximity sensor is disposed on the slide body so as to sense the opening / closing body main body at the retracted position of the slide body and sense the moving state of the movable seat plate at the projecting position of the slide body,
Sensing object estimation means for estimating whether the sensing object by the proximity sensor is the moving body of the opening / closing body main body or the movable seat plate;
When the sensing object estimation unit estimates that the sensing object is the opening / closing body body, the predetermined processing is performed according to the sensing signal of the proximity sensor, and the sensing object is moved in the moving state of the movable seat plate. 2. The switchgear according to claim 1, wherein when it is estimated that another process is performed, another process is performed in accordance with a detection signal of the proximity sensor.   The sensing object estimation means includes predetermined range position detection means for sensing that the closing direction end of the opening / closing body is located within a predetermined range near the fully closed position, and the predetermined range position detection means has sensed the detection target estimation means. In this case, it is estimated that the object to be detected by the proximity sensor is the opening / closing body body, and if the object is not detected, it is estimated that the object to be detected by the proximity sensor is the moving state of the movable seat plate. The switchgear according to claim 2.   In the configuration in which the sensing object estimation means is provided with a notch portion in the opening / closing body and a sensed portion that can be sensed by the proximity sensor at a lower side and an upper side of the notch portion, the proximity sensor When a signal with a pattern that changes to OFF or ON is detected, it is assumed that the object to be detected by the proximity sensor is the moving state of the movable seat plate, and the proximity sensor changes to OFF, ON, OFF, or ON. 3. The switchgear according to claim 2, wherein when a pattern signal is sensed, the switchgear is a means for estimating that the sensing object of the proximity sensor is the body of the switchgear.   Fully closed position detecting means for sensing that the opening / closing body is in the fully closed position is provided, and when the full closed position detecting means detects, the predetermined processing is performed according to the detection of the proximity sensor. The switchgear according to any one of claims 1 to 4, wherein the switchgear is configured as described above.   6. The switchgear according to any one of claims 1 to 5, wherein as the predetermined processing, the presence or absence of an abnormality of the proximity sensor is determined. The proximity sensor is a first proximity sensor, and a second proximity sensor is disposed on the slide body so as to sense the moving state of the movable seat plate when the slide body is in the retracted position.
7. The opening and closing according to claim 2, wherein predetermined processing is performed in accordance with a combination of a detection signal from the first proximity sensor and a detection signal from the second proximity sensor. apparatus.

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