JP4782499B2 - Switchgear - Google Patents

Description

  The present invention is an opening / closing device that performs a closing operation by sliding the end of the opening / closing body in the closing direction, such as a shutter device including an overhead door, a sliding door including a shutter, a sash window, a blind, a gate, a gate, and a sliding wall device. In particular, the present invention relates to an opening / closing device capable of sensing the presence of an obstacle closer to the closing direction than the opening / closing body, and more particularly to an opening / closing device suitable as a shutter device.

  Conventionally, in this type of switchgear, for example, as described in Patent Document 1, a photoelectric sensor (projection sensor (curtain 1)) is projected so as to protrude downward on the side surface of the seat plate (2) at the lower end of the switchgear (curtain 1). The sensor 3) is provided, and the closing operation of the opening / closing body (curtain 1) is stopped by detecting that the light beam emitted from the photoelectric sensor (sensor 3) in the width direction of the opening / closing body is blocked by an obstacle. There is an invention.

However, according to the above prior art, when the photoelectric sensor (sensor 3) moves upward relative to the opening / closing body (curtain 1) due to contact with a contact target portion such as a floor surface, the ground, or a frame member. The light beam of the photoelectric sensor (sensor 3) is blocked by the side surface of the seat plate (2). In this state, the case where the light beam of the photoelectric sensor (sensor 3) is blocked by an obstacle below the opening / closing body (curtain 1) cannot be distinguished on the control circuit.
Therefore, for example, when the opening / closing body (curtain 1) is substantially fully closed, the drive source of the opening / closing body (curtain 1) is stopped, and when the lower end of the opening / closing body (curtain 1) is close to the obstacle In the event that the opening / closing body (curtain 1) reverses and rises in order to relieve the pressing force when the opening / closing body (curtain 1) contacts the obstacle, The conventional technology will not be able to cope with it.

Therefore, the position sensor or the like detects that the closing direction end of the opening / closing body (curtain 1) during the closing operation has entered a predetermined region near the fully closed state, and the light beam of the photoelectric sensor (sensor 3) is detected from the detection. Control is proposed that disables the photoelectric sensor (sensor 3) after a predetermined delay time just before being blocked by (2).
According to this configuration, the obstacle sensing function of the photoelectric sensor (sensor 3) can be made effective until just before the light beam of the photoelectric sensor (sensor 3) is blocked by the seat plate (2).
However, in the configuration as described above, for example, the stop button is pushed immediately after the closing direction end of the opening / closing body (curtain 1) enters the near-closed region, and the closing operation of the opening / closing body (curtain 1) is stopped. When the closing button is pressed again, the delay time elapses on the control circuit, and thus the closing operation of the opening / closing body (curtain 1) is continued while the photoelectric sensor (sensor 3) is disabled. . After that, if an obstacle enters the closing direction side of the opening / closing body (curtain 1), the obstacle cannot be detected, and the obstacle is in contact with the opening / closing body (curtain 1). There is a risk of being caught between.
Japanese Utility Model Publication No. 5-64398

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved by the present invention is that an obstacle on the closing direction side of the opening / closing body can be detected by a sensor and the opening / closing body in the vicinity of the fully closed state. Can be detected by the same sensor, and even when a closing operation is performed after the stopping operation in the region near the fully closed state, an obstacle that has entered the closing direction side of the opening / closing body is detected. An object of the present invention is to provide a switchgear that can be used.

Technical means for solving the above problems include an opening / closing body that is closed by sliding an end portion in the closing direction to abut against a contact target portion, and projecting in the closing direction of the opening / closing body from the closing direction end portion of the opening / closing body In addition, a slide body provided so as to be retracted by contact with the contact target portion, and an obstacle provided on the projecting end side of the slide body and closer to the closing direction than the opening / closing body in the opening / closing body width direction An opening / closing apparatus comprising: a non-contact detection sensor for detecting by an emitted object detection medium; and a full-close proximity detecting means for detecting that a closing direction end of the open / close body during a closing operation has entered a predetermined full-close vicinity region. When a detection signal is received from the fully closed proximity detecting means, it is determined whether or not a predetermined delay time has elapsed, and when the delay time has elapsed , Above To avoid the contact sensor of the movable member is detected, the non-contact sensor to disable a predetermined time after the elapse of the dead time, to enable the non-contact sensor, thereafter, the When the closing operation of the opening / closing body is stopped on the condition that the fully closed state of the opening / closing body is detected, and the delay time does not elapse, the detection signal by the non-contact detection sensor is effectively maintained and the determination In the normal closing operation of the opening / closing body, the delay time is a portion to be contacted when the slide body is fully closed immediately after the closing direction end of the opening / closing body enters the near-closed region. The time until the path of the object detection medium by the non-contact detection sensor is blocked by the closing direction end of the opening / closing body is set in advance. You .

The first form is an opening / closing body that is closed by sliding an end portion in the closing direction to abut against a contact target portion, and projecting from the end portion in the closing direction of the opening / closing body in the closing direction of the opening / closing body. Detected by a slide body provided so as to be retracted by contact with a part, and an object sensing medium which is provided on the projecting end side of the slide body and which emits an obstacle closer to the closing direction than the opening / closing body in the width direction of the opening / closing body An opening / closing device comprising: a non-contact detection sensor for detecting closeness; and a close proximity detecting means for detecting that a closing direction end of the open / close body during a closing operation has entered a predetermined fully closed proximity region. When there is a sensing signal from the sensing means, the non-contact sensing sensor is disabled for a predetermined time so as to prevent the non-contact sensing sensor from being sensed by the non-contact sensing sensor when retreating together with the slide body. , After the elapse of the dead time, and so as to enable the non-contact sensor.
Further, in the second embodiment , the opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and protruding in the closing direction of the opening / closing body from the closing direction end portion of the opening / closing body A slide body provided so as to be retracted by contact with a contact target portion, and an object sensing medium provided on the projecting end side of the slide body and emitting an obstacle closer to the closing direction than the opening / closing body in the opening / closing body width direction An opening / closing device comprising: a non-contact detection sensor for detecting by a closed position; and a fully closed proximity detecting means for detecting that a closing direction end of the opening / closing body during a closing operation has entered a predetermined fully closed proximity region. When there is no opening / closing body stop signal after the detection signal by the close proximity detection means, so as to avoid the opening / closing body being sensed by the non-contact detection sensor when retreating together with the slide body, Serial to disable non-contact sensor, when the closing member stop signal is present, and to maintain the effective of the non-contact sensor.

Further, in the third embodiment , the opening / closing body that is closed by sliding the end portion in the closing direction in contact with the contact target portion, and protruding in the closing direction of the opening / closing body from the closing direction end portion of the opening / closing body A slide body provided so as to be retracted by contact with a contact target portion, and an object sensing medium provided on the projecting end side of the slide body and emitting an obstacle closer to the closing direction than the opening / closing body in the opening / closing body width direction An opening / closing device comprising: a non-contact detection sensor for detecting by a closed position; and a fully closed proximity detecting means for detecting that a closing direction end of the opening / closing body during a closing operation has entered a predetermined fully closed proximity region. When there is no opening / closing body stop signal after the detection signal by the close proximity detection means, so as to avoid the opening / closing body being sensed by the non-contact detection sensor when retreating together with the slide body, When the non-contact detection sensor is invalidated and there is an open / close body stop signal, the open / close body is reversed, and the reverse operation of the open / close body is stopped outside the fully closed region and the non-contact detection is performed. The effectiveness of the sensor was maintained .

Further, in the fourth embodiment , the opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and projecting in the closing direction of the opening / closing body from the closing direction end portion of the opening / closing body, A slide body provided so as to be retracted by contact with a contact target portion, and an object sensing medium provided on the projecting end side of the slide body and emitting an obstacle closer to the closing direction than the opening / closing body in the opening / closing body width direction An opening / closing device comprising: a non-contact detection sensor for detecting by a closed position; and a fully closed proximity detecting means for detecting that a closing direction end of the opening / closing body during a closing operation has entered a predetermined fully closed proximity region. When there is no opening / closing body stop signal after the detection signal by the close proximity detection means, so as to avoid the opening / closing body being sensed by the non-contact detection sensor when retreating together with the slide body, When the non-contact detection sensor is invalidated and the open / close body stop signal is present, the open / close body is stopped, and when there is an open / close body close signal during the stop, the open / close body is removed from the region near the fully closed area. It was made to close after moving upside down .

The opening / closing device according to the above embodiment may be any device provided with an opening / closing body operable at least in the closing direction and configured to partition a space by a sliding operation of the opening / closing body. A mode in which the body is used to perform only a closing operation (for example, a fire shutter device), 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.
Further, in this opening / closing device, the opening / closing body is wound by the winding shaft on the opening direction side, and the mode in which the opening / closing body is fed out from the winding shaft, or the opening / closing body is wound on the storage portion on the opening direction side. The mode etc. which were stored without paying out and paying out from the storage part are included.

  The opening / closing body includes an aspect in which a plurality of slats and pipes are continuously provided in the opening / closing direction, an aspect in which one or more panels, a sheet-like object, and a net-like object are provided in the opening / closing direction, or a slat. In addition, a mode in which a panel, a pipe, a sheet-like material, a net-like material and the like are appropriately combined is included. A preferable mode of this opening / closing body is composed of a rigid material such as a metal slat or a panel.

Further, the slide body may be located at any position in the width direction of the opening / closing body, but preferably the obstacle can be detected over substantially the entire width direction of the opening / closing body by the non-contact detection sensor. It is provided at the end of the opening / closing body in the width direction, and more preferably in a guide rail for guiding the opening / closing body in the opening / closing direction so as not to be adversely affected by foreign matters such as dust and dirt.
A single slide body may be provided or a plurality of slide bodies may be provided in the width direction of the opening / closing body. In particular, the non-contact detection sensor is arranged at a predetermined interval, such as a photoelectric sensor. In the case of a plurality of parts (for example, a light emitting part and a light receiving part), at least the number corresponding to the number of the parts is provided.
The slide body is preferably retracted by contact with the contact target portion (for example, a floor surface, the ground, or a frame member) and protrudes by its own weight. When the closing direction is not downward, the slide body may be urged in the protruding direction and the slide body may be retracted in the opening / closing body opening direction by contact with the contact target portion. .

In addition, the non-contact detection sensor may be any sensor that detects an obstacle or the like closer to the closing direction than the opening / closing body by an object detection medium emitted in the width direction of the opening / closing body. A mode in which an object sensing medium discharged from a discharge portion disposed on a slide body on one end side in the width direction of the opening / closing body is captured by a capturing portion disposed on another slide body on the other end side, or the opening / closing body The object sensing medium emitted from the emitting portion arranged on the slide body on one end side in the width direction is reflected by the reflecting portion arranged on the other slide body on the other end side, and after the reflection, the slide on the one end side is reflected. The aspect etc. which were made to capture by the capture part arrange | positioned at the body are included.
As a specific example of this non-contact detection sensor, a light beam as the object detection medium is formed between a light emitting unit as a emitting unit and a light receiving unit as a capturing unit, and the light beam is blocked by an obstacle or the like. (More specifically, for example, a photoelectric sensor), and an aspect in which ultrasonic waves, radio waves, and the like are emitted as the object sensing medium.

  Further, the full-close proximity detecting means includes an encoder device for detecting, for example, the amount of rotation of the winding shaft for feeding the opening / closing body, and the detection value by the encoder device becomes a predetermined value or more. The closing direction end of the opening / closing body is judged to have entered the region near the full closing, the storage case for storing the opening / closing body, and the opening / closing body for guiding the opening / closing body in the closing direction. A contact switch (limit switch, micro switch, tape switch, etc.) or a non-contact switch (proximity switch, photoelectric sensor, etc.) is provided on the guide rail of the door, and the closing direction end of the opening / closing body is detected by a sensing signal of the switch The structure etc. which judged that it entered into the said full close vicinity area | region etc. are mentioned.

  Further, as a preferable example of the above-mentioned fully closed vicinity region, the size of the opening / closing body opening / closing direction is such that a person who is hungry on a contact target part (for example, a floor surface, the ground, a frame member, etc.) cannot pass. Is set.

Further, in the means of “so as to avoid the opening / closing body being sensed by the non-contact detection sensor when retracted together with the slide body”, the closing direction end of the opening / closing body during the closing operation is Including a control that disables the non-contact detection sensor immediately after entering the fully closed vicinity region, etc., as a more preferable aspect, the closing direction end of the opening and closing body during the closing operation is the close closed region The control is such that the non-contact detection sensor is invalidated after a predetermined delay time has elapsed since the time of entering.
Further, the means of “avoiding the detection of the opening / closing body by the non-contact detection sensor” includes a configuration that prevents the opening / closing body in operation from being detected by the non-contact detection sensor; A configuration in which the open / closed body being stopped is prevented from being detected by the non-contact sensor, and the open / closed body being operated is prevented from being detected by the non-contact sensor, and the open / closed body being stopped is not And a configuration for avoiding being sensed by the touch sensor.

  In addition, in the means of “disabling the non-contact detection sensor for a predetermined time”, the power supply of the non-contact detection sensor is cut off, and the output signal line of the non-contact detection sensor is cut off. A configuration in which a detection signal from the non-contact detection sensor is ignored on a control circuit for controlling the switchgear.

The opening / closing body stop signal in the second to fourth embodiments may be a signal generated by a stop operation of a remote controller, an operation box, or the like, but an obstacle detection sensor other than the non-contact detection sensor (for example, a movable seat plate described later) It is also possible to use a stop signal generated based on detection by a detection sensor. However, the opening / closing body stop signal does not include a signal for detecting that the opening / closing body is fully closed and stopping the opening / closing body.

In the third and fourth embodiments , the reversing operation means an operation in the opening / closing body opening direction.

Further, in the fifth embodiment , as a means for avoiding the opening / closing body being sensed by the non-contact detection sensor when retracted together with the slide body, the closing direction end of the opening / closing body during the closing operation is The non-contact detection sensor is disabled after a predetermined delay time has elapsed from the time when it entered the fully closed vicinity region .

Further, in the sixth embodiment , the opening / closing body which is closed by sliding the end portion in the closing direction to contact the contact target portion, and projects in the closing direction of the opening / closing body from the closing direction end portion of the opening / closing body A slide body provided so as to be retracted by contact with a contact target portion, and an object sensing medium provided on the projecting end side of the slide body and emitting an obstacle closer to the closing direction than the opening / closing body in the opening / closing body width direction An opening / closing device comprising: a non-contact detection sensor for detecting by a closed position; and a fully closed proximity detecting means for detecting that a closing direction end of the opening / closing body during a closing operation has entered a predetermined fully closed proximity region. When there is an open / close body stop signal after the detection signal by the close proximity detection means, the open / close body is forcibly closed while maintaining the non-contact detection sensor effectively .

The opening / closing body stop signal in the sixth embodiment may be a signal generated by a stop operation of a remote controller, an operation box, or the like, and the opening / closing body stop signal may be an obstacle detection sensor other than the non-contact detection sensor (for example, It does not include a stop signal issued based on sensing by a movable seat plate sensor (to be described later), a signal for sensing that the opening / closing body is fully closed, and stopping the opening / closing body.

In the seventh embodiment , the opening / closing body is disposed at an opening / closing body main body provided in the opening / closing direction, and at an end of the opening / closing body main body in the closing direction, and is at least opposite to the opening / closing body main body. A movable seat plate that is movable in the opening / closing body opening direction, and the slide body has a movable seat plate sensor that detects that the movable seat plate moves in the opening / closing body opening direction relative to the opening / closing body. When the closing direction end portion of the opening / closing body that is provided and is in the closing operation is located in the region near the fully closed state, the movable seat plate sensor is invalidated .

Here, the movable seat plate detection sensor includes a contact type sensor such as a limit switch, a micro switch, and a tape switch, but a proximity switch, a photoelectric sensor, or the like is used so as not to hinder the movement of the movable seat plate. It is preferable to use a non-contact sensor.
In addition, as a means for detecting the movement of the movable seat plate by the movable seat plate detection sensor, a mode in which the movable seat plate itself is directly sensed, a swing or slide by the movement of the movable seat plate, etc. The aspect etc. which made it sense an indirect member are included.

Further, in the eighth embodiment , the interval in the opening / closing body opening / closing direction of the fully closed vicinity region is set substantially equal to the protruding amount of the slide body in the protruding state, and the slide body includes the slide body An auxiliary sensor for detecting the backward movement from the projecting state is provided, and the close-close proximity detecting means detects that the end of the closing direction of the opening / closing body during the closing operation has entered the close-closed region. Ru means der be determined by sensing the signal of the detecting sensor.

  Here, the auxiliary sensing sensor includes a contact type sensor such as a limit switch, a micro switch, and a tape switch, but a non-contact type sensor such as a proximity switch and a photoelectric sensor so as not to hinder the movement of the slide body. It is preferable to use a 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 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 .

Since the said form is comprised as demonstrated above, there exists an effect as described below.
According to the first aspect , when there is an obstacle on the closing direction side of the opening / closing body during the closing operation, the obstacle can be detected by the non-contact detection sensor, and the opening / closing body in the vicinity of the fully closed state is non-contacting. Sensing by the sensor can be avoided by invalidating the non-contact sensor.
Moreover, for example, after the closing direction end of the opening / closing body during the closing operation enters the region near the fully closed state, the opening / closing body stops and the opening / closing body stops, and the invalid time elapses during the stop. When the opening / closing body is closed by the closing signal after the passage, the non-contact detection sensor becomes effective after the invalid time has passed. Therefore, even if an obstacle enters the closing direction side of the opening / closing body in this state, the obstacle can be detected by the non-contact detection sensor.

According to the second embodiment , when there is an obstacle on the closing direction side of the opening / closing body during the closing operation, the obstacle can be detected by the non-contact detection sensor, and the opening / closing body in the vicinity of the fully closed state is provided. The detection by the non-contact sensor can be avoided by the invalidity of the non-contact sensor.
In addition, for example, when the opening / closing body stop signal is present after the closing direction end of the opening / closing body during the closing operation enters the region near the fully closed state, the opening / closing body is stopped according to the opening / closing body stop signal. The touch sensor becomes effective. Therefore, in this state, even if an obstacle enters the closing direction side of the opening / closing body, the obstacle can be detected by the non-contact detection sensor.

According to the third embodiment , when there is an obstacle on the closing direction side of the opening / closing body during the closing operation, the obstacle can be detected by the non-contact detection sensor, and the opening / closing body in the vicinity of the fully closed state is provided. The detection by the non-contact sensor can be avoided by the invalidity of the non-contact sensor.
Moreover, for example, when the closing direction end of the opening / closing body during the closing operation enters the near-closed region, and there is an opening / closing body stop signal and the opening / closing body stops, according to the opening / closing body stop signal, The opening / closing body reverses and stops outside the region near the full-close, and the non-contact detection sensor is effective. Therefore, in this state, even if an obstacle enters the closing direction side of the opening / closing body when the closing operation is performed again, the obstacle can be detected by the non-contact detection sensor.

Further, according to the fourth embodiment , when there is an obstacle on the closing direction side of the opening / closing body during the closing operation, the obstacle can be detected by the non-contact detection sensor, and the opening / closing body in the vicinity of the fully closed state is provided. The detection by the non-contact sensor can be avoided by the invalidity of the non-contact sensor.
Moreover, for example, when the closing direction end of the opening / closing body during the closing operation enters the region near the fully closed state, there is an opening / closing body stop signal, the opening / closing body stops, and there is an opening / closing body closing signal during the stoppage. The closing operation is performed after the opening / closing body is reversed to the outside of the fully closed vicinity region. Since the non-contact detection sensor is effective during the closing operation, even if an obstacle enters the closing direction side of the opening / closing body during the closing operation, the obstacle is detected by the non-contact detection sensor. be able to.

Furthermore, according to the fifth aspect , the means for avoiding the opening / closing body from being detected by the non-contact detection sensor when retreating together with the slide body can be a specific preferable aspect.
That is, the non-contact detection sensor becomes invalid after a predetermined delay time elapses from the time when the closing direction end of the opening / closing body during the closing operation enters the fully closed vicinity region.
Therefore, by appropriately setting the delay time, the non-contact detection sensor can be made effective just before it retreats together with the slide body and senses the opening / closing body, and as a result, the opening / closing body is almost completely closed. The non-contact sensor can be effectively maintained until just before the closed state.
Therefore, even if an obstacle enters the closing direction side of the opening / closing body after the closing direction end of the opening / closing body has entered the fully closed region, there is a possibility that the obstacle can be detected by the non-contact detection sensor. high.

According to the sixth embodiment, when the closing direction end of the opening / closing body in the closing operation enters the fully closed vicinity region, the approach is detected by the fully closed proximity detecting means. After the detection, the opening / closing body is forcibly closed even if there is a stop signal while the non-contact detection sensor is effectively maintained.
Therefore, for example, even when there is an opening / closing body stop signal after the end of the closing direction of the opening / closing body during the closing operation enters the near-close region, the closing direction of the opening / closing body is effectively maintained by the non-contact detection sensor that is effectively maintained. Can sense obstacles on the side.

Further, according to the seventh embodiment, when the closing direction end of the opening / closing body during the closing operation enters the region near the fully closed state, the movable seat plate sensor becomes invalid.
Accordingly, an obstacle on the closing direction side of the opening / closing body can be detected by the movable seat plate and the movable seat plate sensor outside the fully closed region, and the movable seat plate and the same movable seat plate sensor in the region near the fully closed region. Thus, it is possible to prevent the contact target part from being detected and the detection from being erroneously recognized as obstacle detection.

Further, according to the eighth aspect , the projecting end of the slide body abuts against the contact target portion at substantially the same time as the closing direction end of the opening / closing body enters the near-close vicinity region, and the slide body is relative to the opening / closing body. Then start to retreat. Then, the backward movement of the slide body is detected by the auxiliary detection sensor.
Therefore, a conventional complicated limit switch mechanism (for example, the invention disclosed in Japanese Patent Application Laid-Open No. 61-243624) or the like indicates that the closing direction end of the opening / closing body during the closing operation has entered the region near the fully closed state. It can be sensed by a simple structure without using it .

Hereinafter, specific examples of the above embodiments will be described with reference to the drawings.
The following opening and closing devices are installed in and inside the housing openings such as houses, buildings, warehouses, factories, underground shopping streets, tunnels, and vehicle loading platforms, and open and close the opening and partition or open the space inside the housing. An example of the shutter device will be described.

  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). A rail 20, a winding device 30 for winding and unwinding the opening and closing body 10, and left and right slide units 50a and 50b protruding from the opening and closing body 10 toward the closing direction thereof are provided.

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 substantially rectangular metal plate so as to rotate between the vertically adjacent slats 11a, 11a. As shown in FIGS. 2 and 3, the opening / closing body main body 11 is movable at the end on the closing direction side (lower side in the illustrated example) via a connecting member 12 having a substantially frame-like longitudinal section. The seat plate 13 is connected across the opening / closing body width direction.
Reference numeral 11b in the drawing is a retaining member that prevents the opening / closing body 10 from coming off from the guide rail 20 in the opening / closing body width direction, and is engaged with the guide rail 20.

The movable seat plate 13 is connected to the lower end of the connection member 12 connected to the lowermost end portion of the opening / closing body main body 11 so as to slide freely by a predetermined amount in the opening / closing body opening / closing direction.
A swing piece 14 is supported in the connecting member 12 so as to swing one end side in the opening / closing body opening / closing direction as the movable seat plate 13 slides.

According to the illustrated example, the oscillating piece 14 has a shape in which the oscillating end side is bent into a substantially L-shaped cross section, and the oscillating end side is pushed up by the movable seat plate 13 so that the oscillating end surface is The proximal end side is supported on the inner wall surface of the connecting member 12 so that it swings in the opening / closing body opening direction until it becomes substantially parallel to the inner wall surface of the connecting member 12 and swings in the reverse direction by its own weight.
And this rocking | fluctuation piece 14 is extended over the opening-and-closing body width direction in the connection member 12, and makes the edge part side of the opening-and-closing body width direction project to the guide rail 20 side rather than the connection member 12, It is inserted into a hollow bracket 12a inserted into the end of the connecting member 12 in the width direction, and is exposed by the opening 12a2 of the bracket.

  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. 32 from a drive source 33 that rotates electrically and bidirectionally through power transmission means such as a chain and a sprocket, a power-side control unit 34 that controls electric power supplied to the drive source 33, and slide units 50a and 50b described later. A sensor-side control unit 35 for processing the sensing signal is 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 by the power-side control unit 34 controlling supply power.

The power-side control unit 34 is supplied to the drive source 33 in response to a signal input from an operation unit (not illustrated) (operation BOX, remote controller, computer that generates an operation signal, portable terminal, activation sensor, or the like). This is a control circuit that controls electric power and causes the drive source 33 to rotate forward, reverse, stop, and the like.
The power-side control unit 34 may be configured by, for example, a relay circuit, but may be a circuit using a microcomputer, a programmable controller, or other electronic circuit.

The sensor-side control unit 35 processes a detection signal input from a sensor (movable seat plate sensor 53, auxiliary sensor 54, discharge unit 52a, capture unit 52b, etc.) on the slide units 50a and 50b described later. And a control circuit that outputs a signal for controlling the drive source 33 to the power-side controller 34.
The sensor-side control unit 35 is preferably configured by a programmed logic circuit using, for example, a microcomputer or a programmable controller so that the setting value for control can be easily changed according to the field situation. However, a wired logic circuit using a relay circuit or other electronic circuit may be used.

  Note that, according to the present embodiment, as described above, the power-side control unit 34 and the sensor-side control unit 35 are provided separately, but the power-side control unit 34 and the sensor-side control unit 35 are provided. Can be configured as a single control circuit.

The slide unit 50a and the slide unit 50b are provided on both sides of the opening / closing body 10 in the width direction.
One slide unit 50a protrudes from the closing direction end of the opening / closing body in the opening / closing body closing direction and retreats by contact with a contact target portion p (for example, a floor surface, the ground, a frame member, etc.). The slide body 51 provided, the discharge portion 52a that is provided on the projecting end side of the slide body 51 and discharges the object sensing medium in the opening / closing body width direction, and the movable seat 13 are opposed to the opening / closing body body 11 and the connection member 12. A movable seat plate detection sensor 53 for detecting that the slide body 51 has been slid in the opening direction and an auxiliary detection sensor 54 for detecting that the slide body 51 has been retracted from the protruding state are provided.
The other slide unit 50b includes a slide body 51 configured substantially the same as that of the slide unit 50a, a capturing unit 52b for capturing an object sensing medium discharged from the discharge unit 52a, and the slide unit 50a. And a movable seat plate sensor 53 and an auxiliary sensor 54 configured in substantially the same manner as the above.

  In the present embodiment, for example, when the movable seat 13 is inclined with respect to the opening / closing body width direction (substantially horizontal direction in the illustrated example) during the closing operation of the opening / closing body 10, or one slide body When there is an abnormality, such as when only 51 no longer protrudes, both the left and right slide units 50a and 50b have a movable seat plate sensor 53 and an auxiliary sensor in order to maintain good detection of the abnormality. Although the detection sensor 54 is provided, the movable seat plate detection sensor 53 and / or the auxiliary detection sensor 54 of either one of the slide units 50a (50b) may be omitted.

  Further, the movable seat plate detection sensor 53 and / or the auxiliary detection sensor 54 provided in the left and right slide units 50a and 50b may perform an AND process on the detection state of the left and right sensors to generate a detection signal. Alternatively, the sensing state of the left and right sensors may be ORed to obtain a sensing signal.

According to the illustrated example, each slide body 51 has a substantially hollow rectangular parallelepiped frame shape that is long in the vertical direction, and the engagement groove 51a in the slide body 51 extends from the end in the width direction of the connection member 12 in the opening / closing body thickness direction. By being engaged with the engaged portions 12a1 and 12a1 protruding to both sides of the opening / closing body 10, the opening / closing body 10 is suspended so as to slide in the opening / closing direction.
In addition, according to the illustrated example, the engaged portions 12a1 and 12a1 are convex portions formed on the bracket 12a inserted into the end of the connecting member 12 in the width direction. It is also possible to adopt a mode that protrudes from.
The slide body 51 is guided by a rail (not shown) in the guide rail 20 and protrudes from the closing direction end of the opening / closing body 10 (specifically, the movable seat plate 13) in the opening / closing body closing direction, It is mounted so as to be slidable between the protruding position and the retracted position retracted by a predetermined amount in the opening direction.

  Further, the discharge part 52a and the capture part 52b are non-contact detection sensors that detect non-contact obstacles closer to the closing direction than the opening / closing body 10, and according to a preferred example of this embodiment, so-called photoelectric sensors are used. The photoelectric sensor captures an object sensing medium such as infrared rays emitted from the emitting unit 52a in the opening / closing body width direction by the capturing unit 52b, and the sensor-side control unit 35 when the path s of the object sensing medium is blocked by the object. A sensing signal is transmitted to.

  The movable seat plate sensor 53 is a so-called proximity sensor that senses an approaching metal object and transmits a sensing signal thereof, so that the swing piece 14 is sensed when the slide body 51 is in the protruding position. (Refer to FIG. 3), the swing piece 14 is mounted on the upper end side of the slide body 51 in the vicinity of the opening / closing body thickness direction.

The auxiliary sensing sensor 54 constitutes a full-close proximity detecting means for detecting that the closing direction end of the opening / closing body 10 during the closing operation has entered a predetermined full-close vicinity region x.
More specifically, the auxiliary sensing sensor 54 is a proximity sensor similar to the movable seat plate sensing sensor 53, and senses the opening / closing body 11 when the slide body 51 is retracted (see FIG. 4). On the upper end side of the slide body 51, the slide body 51 is mounted on the surface opposite to the surface on which the movable seat plate sensor 53 is provided.

  When the closing direction end of the opening / closing body 10 is positioned in the vicinity of the contact target site p, the full-close vicinity region x includes the non-contact detection sensor (the discharge portion 52a and the capture portion 52b) and the movable seat plate detection sensor 53. , And an area for performing special control in accordance with the sensing signal of the auxiliary sensing sensor 54, and the opening / closing body interval H of the fully closed vicinity region x in the opening / closing body opening / closing direction and the opening / closing body of the slide body 51 in the protruding state. The amount of protrusion from 10 is set to be approximately equal.

  Note that, according to a preferred aspect of the present embodiment, the proximity sensor is used as the movable seat plate sensor 53 and the auxiliary sensor 54 in order to obtain good operability and durability. It is also possible to employ a configuration in which one or both of the seat plate detection sensor 53 and the auxiliary detection sensor 54 is replaced with a contact sensor (for example, a limit switch, a micro switch, a tape switch, or the like).

  The sensing signals from the discharge unit 52 a, the capture unit 52 b, the movable seat plate sensor 53, the auxiliary sensor 54, etc. are transmitted by the electrical wiring in the electrical wiring guide member 55 and input to the sensor-side control unit 35. Is done. The sensing signal may be transmitted to the sensor-side control unit 35 via a wireless medium such as infrared rays or radio waves.

Next, processing by the power-side control unit 34 and the sensor-side control unit 35 during the closing operation of the opening / closing body 10 will be described in detail based on examples of flowcharts shown in FIGS.
First, in step 111 in FIG. 5, during the closing operation of the opening / closing body 10, it is determined whether or not there is a sensing signal from the capturing unit 52 b that is a non-contact sensing sensor. The process proceeds to 112a, and if there is no sensing signal, the process proceeds to step 112b.
In the next step 112a, the opening / closing body 10 is temporarily stopped, and the reversing operation is performed for a predetermined time (for example, 2 seconds) immediately after the stop, and then stopped again after the reversing operation.
In step 113a, it is recognized that the opening / closing body 10 has stopped abnormally.

  In step 112b, if there is a detection signal from the movable seat plate sensor 53, the process proceeds to step 112a. If not, the process proceeds to step 114.

  That is, in the above steps 111, 112a, 112b, 113a, when there is an obstacle on the closing direction side of the opening / closing body 10 during the closing operation and the obstacle is detected as being contacted or non-contacted, the obstacle is opened / closed. In order to avoid being pressed by 10, the opening / closing body 10 is turned upside down and stopped, and the stopped state is recognized as an abnormal state.

In step 114, it is determined whether or not the auxiliary sensor 54 is in an ON state. If the auxiliary sensor 54 is in an ON state, the process proceeds to the control routine in the fully closed vicinity region shown in FIG. If YES, the process returns to step 111 above.
The ON state of the auxiliary sensing sensor 54 will be described in detail. When the end in the closing direction of the opening / closing body 10 enters the near-close vicinity region x, as shown in FIGS. Since the protruding end comes into contact with the contact target portion p, the slide body 51 moves backward relative to the opening / closing body 10. Therefore, the auxiliary sensing sensor 54 mounted on the slide body 51 also moves backward relative to the opening / closing body 10.
Then, the retracted auxiliary detection sensor 54 is turned on to detect the opening / closing body 11.
That is, in step 114, whether the end of the opening / closing body 10 in the closing direction has entered the full-close vicinity region x is determined based on the ON / OFF state of the auxiliary sensor 54, and processing corresponding to the determination is performed. It is a step for.

Next, a control operation after the closing direction end of the opening / closing body 10 has entered the fully closed vicinity region x will be described based on a flowchart shown in FIG.
In step 121 following step 114, processing for invalidating the sensing signal by the movable seat plate sensor 53 is performed, and the processing proceeds to the next step 122.
More specifically, in this step 121, even if the sensing signal from the movable seat plate sensing sensor 53 is input to the sensor side control unit 35, the sensor side control unit 35 ignores the sensing signal, It is not recognized that the movable seat 13 is in contact with the obstacle.
That is, this step 121 is to avoid erroneously recognizing that the backward movement is due to the contact of the obstacle when the movable seat 13 is relatively moved backward by the contact with the contact target portion p. It is a step.

In the next step 122, it is determined whether or not a predetermined delay time has elapsed. If the predetermined delay time has elapsed, the process proceeds to the next step 123. If not, the process waits until the delay time elapses. Become. More specifically, immediately after the step 121, the timer provided in the sensor-side control unit 35 is activated, and when the operation time of the timer reaches the delay time, the process proceeds to the next step 123. To be migrated.
The delay time is relative to the contact of the slide body 51 with the contact target portion p immediately after the closing direction end of the opening / closing body 10 enters the fully closed vicinity region x in the normal closing operation of the opening / closing body 10. Is the time until the path s of the object sensing medium by the discharge unit 52a and the capturing unit 52b is blocked by the end of the opening / closing body 10 in the closing direction, and is obtained and set in advance through experiments and calculations. .

In step 123, the sensing signals from the emitting unit 52a and the capturing unit 52b, which are non-contact sensing sensors, are invalidated, and the process proceeds to the next step 124.
More specifically, in step 123, even if the sensing signal from the capturing unit 52b is input to the sensor-side control unit 35, the sensor-side control unit 35 ignores the sensing signal and It does not recognize that the path s of the object detection medium by the touch sensor is blocked by an obstacle.

Therefore, according to step 122 to step 123 above, the sensing signal from the non-contact sensing sensor (the emitting part 52a and the capturing part 52b) is immediately after the closing direction end of the opening / closing body 10 enters the fully closed vicinity region x. The slide body 51 abuts against the contact target site p and moves backward relatively, and is effectively maintained until immediately before the path s of the object detection medium by the non-contact detection sensor is blocked by the end of the opening / closing body 10 in the closing direction. .
That is, the obstacle detection by the non-contact detection sensor can be made effective until just before the opening / closing body 10 is substantially fully closed.
Therefore, if an obstacle enters the path s of the object detection medium by the non-contact detection sensor during the delay time, the sensor-side control unit 35 determines that the detection signal by the non-contact detection sensor is valid. An obstacle is recognized, and predetermined control is performed such as stopping or reversing the opening / closing body 10 or issuing an alarm.

Next, in step 124, it is determined whether or not a predetermined invalid time has elapsed. If the predetermined invalid time has elapsed, the process proceeds to the next step 125. If not, the process waits until the invalid time has elapsed. It becomes.
More specifically, immediately after the step 123, the timer provided in the sensor-side control unit 35 is activated, and when the operation time of the timer becomes the invalid time, the process proceeds to the next step 125. To be migrated. Note that this timer can be used in common with the timer that measures the delay time in step 122 by starting its operation immediately after step 121.

  In the next step 125, the sensing signals from the emitting part 52a and the capturing part 52b, which are non-contact sensing sensors, are validated, and the process proceeds to the failure determination routine for the next non-contact sensing sensor.

That is, in steps 124 to 125, the slide body 51 is relatively retracted by contact with the contact target portion p, and the path s of the object detection medium of the non-contact detection sensor (the discharge unit 52a and the capture unit 52b) is determined. This is a step for avoiding being obstructed by the closing direction end of the opening / closing body 10 and being erroneously recognized as obstacle detection.
The sensor-side control unit 35 is in an abnormal state where an object such as an obstacle has entered the path s of the object sensing medium when the sensing signal from the non-contact sensing sensor changes from ON to OFF or from OFF to ON. Since the circuit configuration is to be determined, even if the sensing signal from the non-contact sensing sensor is valid in step 125 and the path s of the object sensing medium is blocked by the opening / closing body 10, this state is abnormal. There is no misrecognition as a state.

  Thus, according to the control routine (steps 121 to 125) in the fully closed vicinity region, for example, after the end in the closing direction of the opening / closing body 10 enters the fully closed vicinity region x, the operation unit (operation BOX not shown) is shown. And the power-side control unit 34 stops the opening / closing body 10 by a stop command from a remote control, a computer that issues an operation signal, a portable terminal, a start sensor, etc., and the delay time (step 122) and the invalidity are stopped during the stop. Even if the time (step 124) elapses, the non-contact detection sensor is enabled by the above step 125. Therefore, when the opening / closing body 10 is closed again, it should be closer to the closing direction than the opening / closing body 10. An obstacle that has entered the space can be detected by a non-contact detection sensor. When an obstacle is detected in this way, predetermined control such as stopping or reversing the opening / closing body 10 or issuing an alarm or signal indicating that the obstacle has been detected is performed.

In the above-described flowchart, the power-side control unit 34 stops the opening / closing body 10 in response to a stop command from the operation unit, and the delay time (step 122) and the invalid time (step 124) have elapsed during the stop. In this case, since the non-contact detection sensor is effectively maintained, if the closing operation is performed again and the opening / closing body 10 is closed to the substantially fully closed state, the path s of the object sensing medium is blocked by the opening / closing body 10. Therefore, there is a possibility of being erroneously recognized as an abnormal state in which an obstacle is detected.
However, since it is very rare that the closing operation following the stop operation is performed in the vicinity of the fully closed state in this way, in the illustrated example, the obstacle detection by the non-contact detection sensor is opened and closed even in the above case. The body 10 is effectively maintained until it is substantially fully closed, giving priority to safety.

Next, a failure determination routine of the non-contact detection sensor (the discharge unit 52a and the capture unit 52b) will be described based on the flowchart shown in FIG.
In step 131 after step 125, it is determined whether or not there is a sensing signal from the non-contact sensing sensor (the emitting unit 52a and the capturing unit 52b). If there is a sensing signal, the process proceeds to the next step 132a. If not, the process proceeds to step 132b.

  In step 132a, when the substantially fully closed state of the opening / closing body 10 is detected, the process proceeds to the next step 133a. Otherwise, the closing operation of the opening / closing body 10 is continued and the opening / closing body 10 is continued. Step 132a is repeated until is substantially fully closed.

In addition, as the fully-closed detecting means for detecting the substantially fully closed state of the opening / closing body 10, for example, in the storage case 31 or in the guide rail 20 so as to operate when the opening / closing body 10 is substantially fully closed. Are provided with contact type switches (limit switch, micro switch, tape switch, etc.) or non-contact type switches (proximity switch, photoelectric sensor, etc.), and the switch body 10 recognizes the substantially fully closed state based on the sensing signal. The structure which was made is mentioned.
Further, as another aspect of the full-close sensing means, for example, substantially all of the open / close body 10 is caused by a change in the load of the drive source 33 when the closing direction end of the open / close body 10 comes into contact with the contact target portion p. A configuration that recognizes the closed state and an encoder device that detects the amount of rotation of the take-up shaft 32, and when the detected value by the encoder device exceeds a predetermined value, the opening / closing body 10 is substantially entirely The structure etc. which were made to recognize that it came to the closed state may be sufficient.

Next, in step 133 a, a command for stopping the opening / closing body 10 is transmitted from the sensor-side control unit 35 to the power-side control unit 34, and the control of the drive source 33 by the power-side control unit 34 controls the opening / closing body 10. The closing operation stops.
Then, in the next step 134a, it is recognized that the non-contact detection sensor (the emitting part 52a and the capturing part 52b) is normal.

  That is, when the end of the opening / closing body 10 is in the close-close vicinity region x, there is a detection signal from the non-contact detection sensor (the discharge part 52a and the capturing part 52b), and immediately after that, the opening / closing body 10 is substantially fully closed. If detected, it is presumed that the opening / closing body 10 has blocked the path s of the object sensing medium by the non-contact detection sensor due to the relative retreat of the slide body 51, and immediately after that, the opening / closing body 10 is substantially fully closed. Therefore, after the closing operation of the opening / closing body 10 is stopped, this state is recognized as a normal state.

In Step 132b, when the substantially fully closed state of the opening / closing body 10 is detected, the process proceeds to the next Step 133b. Otherwise, the process returns to Step 131.
In step 133b, the closing operation of the opening / closing body 10 is stopped, and in the next step 134b, the non-contact detection sensor (the discharge unit 52a and the capture unit 52b) is recognized as being in an abnormal state, and further in step 135b, the non-contact detection is performed. Issue alarms and signals to report sensor abnormalities.

That is, in the case where the closing direction end of the opening / closing body 10 is located in the full-close vicinity region x, the opening / closing body 10 is substantially omitted with no detection signal from the non-contact detection sensor (the emitting unit 52a and the capturing unit 52b). When the fully closed state is detected, it is presumed that the opening / closing body 10 is substantially fully closed without being detected by the opening / closing body 10 when it is substantially fully closed due to an abnormality such as a failure of the non-contact sensor. Therefore, after the closing operation of the opening / closing body 10 is stopped, this state is recognized as an abnormal state.
This abnormal state includes, for example, failure of the non-contact detection sensor, disconnection or contact failure of the electric wire of the non-contact detection sensor, slide failure of the slide unit 50a and / or the slide unit 50b, and the like.

Next, a modified example of the flowchart shown in FIG. 6 will be described. Note that, in the configuration described below, overlapping detailed description is omitted for portions that are substantially the same as the configuration described above.
The flowchart shown in FIG. 8 replaces the flowchart shown in FIG. 6 described above and becomes a control routine in the fully closed vicinity region.
In step 141 in this flowchart, the detection signal from the movable seat plate sensor 53 is invalidated, and the process proceeds to the next step 142.
In the next step 142, it is determined whether or not a predetermined delay time has elapsed. If the predetermined delay time has elapsed, the process proceeds to the next step 143a, and if not, the process proceeds to step 143b.
In step 143a, the detection signals from the non-contact detection sensors (the emission unit 52a and the capture unit 52b) are invalidated, and the process proceeds to the non-contact detection sensor failure determination routine described above.

That is, in steps 141 to 143a, as in the flowchart shown in FIG. 6 described above, when the end in the closing direction of the opening / closing body 10 enters the fully closed vicinity region x, the movable seat 13 is contacted with the contact target portion p. The detection signal of the movable seat plate sensor 53 generated by contacting and retreating is invalidated.
After the non-contact detection sensor is effectively maintained for a predetermined delay time until immediately before the movable seat 13 contacts the contact target portion p, the path s of the object detection medium is blocked by the opening / closing body 10. In order to avoid this, the sensing signal by the non-contact sensing sensor is invalidated.

  After step 143a, the process proceeds to the above-described failure determination routine (see FIG. 7) of the non-contact sensor while the detection signal from the non-contact sensor is disabled. Even if there is a signal, the detection signal is ignored, so that the invalidity does not affect step 131 in the failure determination routine of the non-contact detection sensor.

In step 143b, it is determined whether or not there is a stop signal. If there is a stop signal, the process proceeds to the failure determination routine of the non-contact detection sensor. If not, the process proceeds to step 142. return.
The stop signal is a signal indicating whether or not there is a command to stop the opening / closing body 10, for example, the power-side control unit 34, the operation unit (operation BOX, remote controller, computer that generates an operation signal). , Portable terminal, activation sensor, etc.), etc.

That is, according to the flowchart shown in FIG. 8, during the elapse of a predetermined delay time after the closing direction end of the opening / closing body 10 enters the full-close vicinity region x and the movable seat plate sensor 53 is disabled. When there is no opening / closing body stop signal, the non-contact detection sensor is disabled after the elapse of the delay time so as to avoid the detection of the opening / closing body 10 by the non-contact detection sensor when retreating together with the slide body 51. If there is an open / close body stop signal during the lapse of the delay time, the non-contact detection sensor is effectively maintained.
Therefore, after the closing direction end of the opening / closing body 10 enters the fully closed vicinity region x, the power-side control unit 34 stops the opening / closing body 10 by a stop command from the operation unit, and the opening / closing body 10 is closed by a subsequent closing operation. Even when the camera is closed again, it is possible to make the non-contact detection sensor in a state in which an obstacle can be detected.

In the flowchart of FIG. 8, when the closing operation of the opening / closing body 10 is stopped by the stop command from the operation unit during the lapse of the delay time (see step 143b), the non-contact detection sensor is activated. Therefore, when the closing operation is performed again and the opening / closing body 10 is closed to a substantially fully closed state, the path s of the object sensing medium is blocked by the opening / closing body 10 and erroneously recognized as an abnormal state in which an obstacle is detected. There is a possibility of being.
However, since it is very rare that the closing operation following the stop operation is performed in the vicinity of the fully closed state in this way, in the illustrated example, the obstacle detection by the non-contact detection sensor is opened and closed even in the above case. The body 10 is effectively maintained until it is substantially fully closed, giving priority to safety.

Further, the flowchart shown in FIG. 9 is replaced with the flowchart shown in FIG. 6 described above, and becomes a control routine in the fully closed vicinity region.
In step 151 in this flowchart, the detection signal from the movable seat plate sensor 53 is invalidated, and the process proceeds to the next step 152.
In the next step 152, it is determined whether or not a predetermined delay time has elapsed. If it has elapsed, the process proceeds to the next step 153a, and if not, the process proceeds to step 153b.
In step 153a, the sensing signals from the non-contact sensing sensors (the emitting unit 52a and the capturing unit 52b) are invalidated, and the process proceeds to the next step 154a.
In step 154a, it is determined whether or not a predetermined invalid time has elapsed. If the predetermined invalid time has elapsed, the process proceeds to the next step 155a. Otherwise, the invalid time elapse wait state is entered. .
In the next step 155a, the sensing signal by the non-contact sensing sensor (the emitting part 52a and the capturing part 52b) is validated, and the process proceeds to the failure judgment routine of the non-contact sensing sensor.

In step 153b, it is determined whether or not there is a stop signal described in the process of step 143b. If there is a stop signal, the process proceeds to step 154b. If not, the process proceeds to step 152. Return processing.
In step 154b, the opening / closing body 10 is temporarily stopped and then reversely operated immediately after the stop.

In the next step 155b, it is determined whether or not the auxiliary sensor 54 is in an OFF state. If the auxiliary sensor 54 is in an OFF state, the process proceeds to the next step 156b, and if not, the process by the 155b is performed. Repeated.
That is, when the opening / closing body 10 is reversed in step 154, the slide body 51 slides in the closing direction of the opening / closing body relative to the opening / closing body 10, so that the auxiliary sensor 54 no longer senses the opening / closing body 11 and is turned off. It becomes. Further, at substantially the same time, the slide body 51 is in a fully projected position.

Next, in step 156b, the reversing operation of the opening / closing body 10 is stopped.
That is, when the auxiliary sensor 54 is turned off in step 155b, the sensor-side control unit 35 transmits a stop signal to the power-side control unit 34, and the drive source 33 stops under the control of the power-side control unit 34. Accordingly, the opening operation of the opening / closing body 10 is also stopped. In this stopped state, the end of the opening / closing body 10 in the closing direction is slightly beyond the limit position on the opening direction side of the fully closed vicinity region x in the opening direction.

In the next step 157b, the sensing signal from the movable seating plate sensing sensor 53 that has been invalidated in step 151 is returned to valid.
If the closing operation of the opening / closing body 10 is performed after step 157b, the processing is repeated from step 111 of the flowchart shown in FIG.

In the flowchart of FIG. 9, after step 155b, a process may be provided in which a timer is started and the process proceeds to the next step 156b when it is confirmed by the timer that a predetermined time has elapsed.
According to this configuration, the opening / closing body 10 can be stopped after being opened by a predetermined distance from the fully closed vicinity region x.

Thus, according to the flowchart shown in FIG. 9, the elapse of a predetermined delay time after the closing direction end of the opening / closing body 10 enters the fully closed vicinity region x and the movable seat plate sensor 53 is invalidated. When there is no opening / closing body stop signal, the non-contact detection sensor is turned on after the elapse of the delay time so as to avoid the detection of the opening / closing body 10 by the non-contact detection sensor when retreating together with the slide body 51. When the switch is invalidated for a predetermined invalid time and there is an open / close body stop signal during the lapse of the delay time, the open / close body 10 is reversed, and the reversed open / close body 10 is stopped outside the full-close vicinity region x. To do.
Therefore, after the closing direction end portion of the opening / closing body 10 enters the fully closed vicinity region x, the closing direction end portion of the opening / closing body 10 and the contact target portion p should be contacted regardless of whether the opening / closing body stop signal is present or not. When an obstacle enters in between, the obstacle can be detected by a non-contact sensor, and as a result, based on the obstacle detection, the opening / closing body 10 is stopped, reversed, etc. Predetermined control can be performed.
Moreover, since the end in the closing direction of the opening / closing body 10 is not maintained in a state of being stopped in the fully closed vicinity region x, for example, the opening / closing body 10 is in a state where there is a slight gap on the closing direction side of the opening / closing body 10. It can be prevented that a jig or the like is inserted into the gap by a malicious third party or the like and the opening / closing body 10 is opened, and the crime prevention property is good.

Further, the flowchart shown in FIG. 10 is replaced with the flowchart shown in FIG. 6 described above and becomes a control routine in the fully closed vicinity region.
In step 161 in this flowchart, the detection signal from the movable seat plate sensor 53 is invalidated, and the process proceeds to the next step 162.
In the next step 162, it is determined whether or not a predetermined delay time has elapsed. If it has elapsed, the process proceeds to the next step 163a, and if not, the process proceeds to step 163b.
In step 163a, the sensing signals from the non-contact sensing sensors (the emitting unit 52a and the capturing unit 52b) are invalidated, and the process proceeds to the next step 164a.
In step 164a, it is determined whether or not a predetermined invalid time has elapsed. If the predetermined invalid time has elapsed, the process proceeds to the next step 165a. Otherwise, the invalid time elapse wait state is entered. .
In the next step 165, the detection signal by the non-contact detection sensor (the emission unit 52a and the capture unit 52b) is validated, and the process proceeds to the failure determination routine of the non-contact detection sensor.

In step 163b, it is determined whether or not there is a stop signal described in the process of step 143b. If there is a stop signal, the process proceeds to step 164b. If not, the process proceeds to step 162. Return processing.
In step 164b, the opening / closing body 10 is forcibly closed while ignoring the stop command, and the process proceeds to the failure determination routine for the non-contact detection sensor described above.
That is, in this step 164b, a stop signal is input to the sensor side control unit 35 from the power side control unit 34 or the operation unit (operation BOX, remote controller, computer that issues an operation signal, portable terminal, start sensor, etc.). If it is, the closing signal is ignored and the closing operation of the opening / closing body 10 is forcibly continued. During the forced closing operation of the opening / closing body 10, the obstacle detection by the non-contact detection sensor (the discharge part 52a and the capture part 52b) and the predetermined control operation after the obstacle detection are effectively maintained. Yes.

Thus, according to the flowchart shown in FIG. 10, after the closing direction end of the opening / closing body 10 has entered the full-close vicinity region x, when there is no opening / closing body stop signal, the closing direction end of the opening / closing body 10. It is possible to detect an obstacle with a non-contact detection sensor until just before contact with the contact target site p, and when there is an opening / closing body stop signal, the obstacle detection with the non-contact detection sensor is possible. The closing operation of the opening / closing body 10 is forcibly continued while maintaining the state.
Therefore, after the end in the closing direction of the opening / closing body 10 has entered the full-close vicinity region x, it is unlikely that there will be a stop signal between the end in the closing direction of the opening / closing body 10 and the contact target portion p. When an obstacle enters, the obstacle can be detected by a non-contact detection sensor. As a result, the opening / closing body 10 is stopped or reversed or a warning is issued based on the obstacle detection. Control can be performed.
Moreover, since the end of the opening / closing body 10 in the closing direction is not maintained in a state of being stopped in the full-close vicinity region x, the third party or the like makes a mistake, as in the case of the flowchart of FIG. 9 described above. Opening action can be prevented and crime prevention is good.

In the flowchart of FIG. 10, when there is a stop command from the operation unit while the delay time has elapsed (step 162 b), the closing operation of the opening / closing body 10 is continued ignoring the stop command. In addition, since the non-contact detection sensor is effectively maintained, the path s of the object detection medium is blocked by the opening / closing body 10 and may be erroneously recognized as an abnormal state in which an obstacle is detected.
However, since it is very rare that the stop operation is performed in the vicinity of the fully closed state in this way, in the illustrated example, the opening / closing body 10 substantially detects the obstacle by the non-contact detection sensor even in the above case. It keeps effective until fully closed, giving priority to safety.

Further, the flowchart shown in FIG. 11 is replaced with the flowchart shown in FIG. 6 described above, and becomes a control routine in the fully closed vicinity region.
In step 171 in this flowchart, the detection signal from the movable seat plate sensor 53 is invalidated, and the process proceeds to the next step 172.
In the next step 172, it is determined whether or not a predetermined delay time has elapsed. If it has elapsed, the process proceeds to the next step 173a, and if not, the process proceeds to step 173b.
In step 173a, the sensing signals from the non-contact sensing sensors (the emitting unit 52a and the capturing unit 52b) are invalidated, and the process proceeds to the next step 174a.
In step 174a, it is determined whether or not a predetermined invalid time has elapsed. If the predetermined invalid time has elapsed, the process proceeds to the next step 175a. If not, the invalid time elapse wait state is entered. .
In the next step 175a, the sensing signals from the non-contact sensing sensors (the emission unit 52a and the capturing unit 52b) are validated, and the process proceeds to the failure judgment routine of the non-contact sensing sensor.

In step 173b, it is determined whether or not there is a stop signal described in step 143b. If there is a stop signal, the process proceeds to step 174b. If not, the process proceeds to step 172. Return processing.
In step 174b, the opening / closing body 10 is stopped, and the process proceeds to step 175b.
Although not shown in the flowchart, in step 174b, if there is an opening signal while the opening / closing body 10 is stopped, the control routine is interrupted and the opening / closing body 10 is normally opened. It is possible.

In step 175b, it is determined whether or not there is a closing signal. If yes, the process proceeds to the next step 176b, and if not, the process waits for a closing signal.
The closing signal is a signal indicating whether or not there is a command to close the opening / closing body 10, and includes, for example, the power-side control unit 34, the operation unit (operation BOX, remote controller, computer that generates an operation signal). , Portable terminal, activation sensor, etc.), etc.
In step 176b, the opening / closing body 10 is reversed.

  Next, in step 177b, it is determined whether or not the auxiliary sensing sensor 54 is turned off by sliding the slide body 51 in the opening / closing body closing direction. If the auxiliary sensing sensor 54 is turned off, the process proceeds to the next step 178b. If not, the process according to 177b is repeated.

In step 178b, the sensing signal from the movable seat plate sensing sensor 53 that has been invalidated in step 171 is returned to valid.
Further, in Step 179b, the opening / closing body 10 during the reversing operation is temporarily stopped and immediately after that, it is closed.
After step 179b, the process returns to step 171.

Thus, according to the flowchart shown in FIG. 11, a predetermined delay time elapses after the end of the opening / closing body 10 in the closing direction enters the full-close vicinity region x and the movable seat plate sensor 53 is disabled. When there is no opening / closing body stop signal, the non-contact detection sensor is turned on after the elapse of the delay time so as to avoid the detection of the opening / closing body 10 by the non-contact detection sensor when retreating together with the slide body 51. When there is an opening / closing body stop signal while the delay time is expired and the opening / closing body stop signal is present, the opening / closing body 10 is stopped. Then, the closing operation is started in a state in which the non-contact detection sensor effectively maintains the sensing signal.
Therefore, after the closing direction end portion of the opening / closing body 10 enters the fully closed vicinity region x, the closing direction end portion of the opening / closing body 10 and the contact target portion p should be contacted regardless of whether the opening / closing body stop signal is present or not. When an obstacle enters in between, the obstacle can be detected by a non-contact sensor, and as a result, based on the obstacle detection, the opening / closing body 10 is stopped, reversed, etc. Predetermined control can be performed.
Moreover, it is also possible to stop the end portion in the closing direction of the opening / closing body 10 within the fully closed vicinity region x as desired by the user or the like.

  Although not shown in the flowchart, in the operation in the fully closed vicinity region x, when the non-contact detection sensor is effective and the obstacle is detected by the non-contact detection sensor, The control routine is interrupted, and predetermined control (for example, a process for stopping the opening / closing body 10, a process for reversing the opening / closing body 10 within the range of the fully closed vicinity region x, and the opening / closing body 10 outside the fully closed vicinity region x) Process for reversing operation, processing for issuing an alarm, etc.).

  Further, in the operation within the fully closed vicinity region x, when there is a stop signal after the non-contact sensor is invalidated, processing for stopping the opening / closing body 10 at that time, processing for ignoring the stop signal, Appropriate control may be performed such as a process of reversing the opening / closing body 10 outside the fully closed vicinity region x.

In the operation in the fully closed vicinity region x, when the opening / closing body 10 is opened from the fully closed position or the midway position in the fully closed proximity region x, if the stop signal is received, the opening / closing body 10 is opened / closed. The body 10 may be stopped after being opened to the outside of the fully closed vicinity region x, or may be fully closed by reversing the opening / closing body 10 in the closing direction while maintaining the effectiveness of the non-contact detection sensor. Further, the stop signal may be ignored and only the opening operation can be performed.

Next, another mode in which the flowcharts of FIGS. 6 and 7 are changed will be described.
In this aspect, the processing shown in the flowcharts of FIGS. 12 and 13 is replaced with the flowcharts of FIGS. 6 and 7 by changing the program of the sensor-side control unit 35 in the object sensing device A for the opening / closing device described above. I do.
First, as shown in FIG. 12, in steps 181 to 183 following step 114, the same processing as in steps 121 to 123 described above is performed (see FIG. 6), and the processing proceeds to the next step 184.
In step 184, when the substantially fully closed state of the opening / closing body 10 is detected, the process proceeds to the next step 185. Otherwise, the opening / closing body 10 is substantially closed while continuing the closing operation of the opening / closing body 10. Step 184 is repeated until the fully closed state is reached.
Next, in step 185, a command for stopping the opening / closing body 10 is transmitted from the sensor-side control unit 35 to the power-side control unit 34, and the control of the drive source 33 by the power-side control unit 34 controls the opening / closing body 10. The closing operation is stopped, and the process proceeds to the next step 186.

In the next steps 186 to 187, processing similar to that in steps 124 to 125 described above is performed.
The sensor-side control unit 35 is in an abnormal state where an object such as an obstacle has entered the path s of the object sensing medium when the sensing signal from the non-contact sensing sensor changes from ON to OFF or from OFF to ON. Since the circuit configuration is to be determined, even if the sensing signal from the non-contact sensing sensor becomes valid in step 187 and the path s of the object sensing medium is blocked by the opening / closing body 10, this state is abnormal. There is no misrecognition as a state.
However, according to the flowchart (see FIG. 12), it is also possible to adopt a circuit configuration in which it is determined that the contactless sensor is in an abnormal state when the non-contact detection sensor is in an ON state. The abnormal state may be ignored on the control circuit on condition that the state is the state.

In the flowchart shown in FIG. 13, in step 191, as in step 131, it is determined whether or not there is a detection signal from the non-contact detection sensor (emission unit 52 a and capture unit 52 b). If there is, the process proceeds to the next step 192a, and if not, the process proceeds to step 192b.
In the next step 192a, it is recognized that the non-contact detection sensor (the emitting part 52a and the capturing part 52b) is normal.
In step 192b, the non-contact detection sensor (the emission unit 52a and the capture unit 52b) is recognized as being in an abnormal state, and in step 192c, an alarm or signal for reporting the abnormality of the non-contact detection sensor is issued. .

It is a rear view which shows an example of the switchgear concerning this invention, and has shown the principal part notched. It is a principal part perspective view of the switchgear. It is principal part sectional drawing in the switchgear, (a) shows the state before a movable seat plate retracts, (b) shows the state which the movable seat plate retracted. It is principal part sectional drawing in the switchgear, (a) shows the state in which a slide unit exists in a protrusion position, (b) shows the state which the slide unit was in a retreat position by contact with a contact object part. Show. In the same opening / closing apparatus, it is a flowchart showing a control before the closing direction end of the opening / closing body enters the fully closed vicinity region. 4 is a flowchart showing control after the closing direction end portion of the opening / closing body has entered a fully closed vicinity region in the opening / closing device. It is a flowchart at the time of judging failure of a non-contact detection sensor in the same switching device. It is a flowchart which shows the other example of control after the closing direction edge part of an opening-and-closing body penetrate | invades into the full-close vicinity area | region. It is a flowchart which shows the other example of control after the closing direction edge part of an opening-and-closing body penetrate | invades into the full-close vicinity area | region. It is a flowchart which shows the other example of control after the closing direction edge part of an opening-and-closing body penetrate | invades into the full-close vicinity area | region. It is a flowchart which shows the other example of control after the closing direction edge part of an opening-and-closing body penetrate | invades into the full-close vicinity area | region. It is a flowchart which shows the other example of control after the closing direction edge part of an opening-and-closing body penetrate | invades into the full-close vicinity area | region. It is a flowchart which shows the other example of control at the time of failure determination of a non-contact detection sensor.

10: Opening / closing body 11: Opening / closing body main body 13: Movable seat plate 50a: Slide unit 50b: Slide unit 51: Slide body 52a: Release part (non-contact detection sensor)
52b: Capture unit (non-contact detection sensor)
53: Movable seat plate sensor 54: Auxiliary sensor p: Contact target site x: Near-close region

Claims (7)

An opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and projecting from the end portion in the closing direction of the opening / closing body in the closing direction of the opening / closing body and contacting the contact target portion A slide body provided so as to retreat, and a non-contact detection sensor which is provided on a protruding end side of the slide body and detects an obstacle closer to the closing direction than the opening / closing body by an object detection medium which emits in the width direction of the opening / closing body In the opening / closing apparatus provided with a fully closed proximity detecting means for detecting that the closing direction end of the opening / closing body during the closing operation has entered a predetermined fully closed proximity region,
When there is a sensing signal by the fully closed proximity sensing means, it is determined whether a predetermined delay time has elapsed,
When the delay time has elapsed , the non-contact detection sensor is disabled for a predetermined time so as to avoid the detection of the opening / closing body by the non-contact detection sensor when retreating together with the slide body, After the invalid time has elapsed, the non-contact detection sensor is enabled, and then the closing operation of the opening / closing body is stopped on the condition that the opening / closing body is fully closed.
If the delay time does not elapse, the sensor signal from the non-contact sensor is effectively maintained and the process returns to the determination.
In the normal closing operation of the opening / closing body, the delay time is the time when the sliding body is in contact with the contact target portion when the sliding body is fully closed immediately after the end of the closing direction of the opening / closing body enters the region near the fully closed state. The opening / closing apparatus, which is set in advance, is a time until the path of the object detection medium by the non-contact detection sensor is retreated relatively by contact and immediately before being blocked by the end portion in the closing direction of the opening / closing body. . An opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and projecting from the end portion in the closing direction of the opening / closing body in the closing direction of the opening / closing body and contacting the contact target portion A slide body provided so as to retreat, and a non-contact detection sensor which is provided on a protruding end side of the slide body and detects an obstacle closer to the closing direction than the opening / closing body by an object detection medium which emits in the width direction of the opening / closing body In the opening / closing apparatus provided with a fully closed proximity detecting means for detecting that the closing direction end of the opening / closing body during the closing operation has entered a predetermined fully closed proximity region,
A first determination is made as to whether or not a predetermined delay time has elapsed when there is a sensing signal from the fully closed proximity sensing means ;
When the delay time has elapsed, the non-contact detection sensor is disabled so as to avoid the opening / closing body being detected by the non-contact detection sensor when retreating together with the slide body, and thereafter Stop the closing operation of the opening / closing body on condition that the fully closed state of the opening / closing body is detected,
When the delay time does not elapse, a second determination is made as to whether or not there is an open / close body stop signal that is a command for stopping the open / close body,
Wherein when the opening and closing member stop signal Ru Oh maintains effective of the non-contact sensor,
If there is no opening / closing body stop signal, the process returns to the first determination,
In the normal closing operation of the opening / closing body, the delay time is the time when the sliding body is in contact with the contact target portion when the sliding body is fully closed immediately after the end of the closing direction of the opening / closing body enters the region near the fully closed state. The opening / closing apparatus, which is set in advance, is a time until the path of the object detection medium by the non-contact detection sensor is retreated relatively by contact and immediately before being blocked by the end portion in the closing direction of the opening / closing body. . An opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and projecting from the end portion in the closing direction of the opening / closing body in the closing direction of the opening / closing body and contacting the contact target portion A slide body provided so as to retreat, and a non-contact detection sensor which is provided on a protruding end side of the slide body and detects an obstacle closer to the closing direction than the opening / closing body by an object detection medium which emits in the width direction of the opening / closing body In the opening / closing apparatus provided with a fully closed proximity detecting means for detecting that the closing direction end of the opening / closing body during the closing operation has entered a predetermined fully closed proximity region,
A first determination is made as to whether or not a predetermined delay time has elapsed when there is a sensing signal from the fully closed proximity sensing means ;
When the delay time has elapsed, the non-contact detection sensor is disabled for a predetermined time so as to avoid the detection of the opening / closing body by the non-contact detection sensor when retreating together with the slide body, After the invalid time has elapsed, the non-contact detection sensor is enabled, and then the closing operation of the opening / closing body is stopped on the condition that the opening / closing body is fully closed.
When the delay time does not elapse, a second determination is made as to whether or not there is an open / close body stop signal that is a command for stopping the open / close body,
When the open / close body stop signal is present, the open / close body is reversely operated, and further , the open / close body that has been reversely operated is stopped outside the region near the fully closed state and the non-contact detection sensor is maintained effective .
If there is no opening / closing body stop signal, the process returns to the first determination,
In the normal closing operation of the opening / closing body, the delay time is the time when the sliding body is in contact with the contact target portion when the sliding body is fully closed immediately after the end of the closing direction of the opening / closing body enters the region near the fully closed state. The opening / closing apparatus, which is set in advance, is a time until the path of the object detection medium by the non-contact detection sensor is retreated relatively by contact and immediately before being blocked by the end portion in the closing direction of the opening / closing body. . An opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and projecting from the end portion in the closing direction of the opening / closing body in the closing direction of the opening / closing body and contacting the contact target portion A slide body provided so as to retreat, and a non-contact detection sensor which is provided on a projecting end side of the slide body and detects an obstacle closer to the closing direction than the opening / closing body by an object detection medium which emits in the width direction of the opening / closing body In the opening / closing apparatus provided with a fully closed proximity detecting means for detecting that the closing direction end of the opening / closing body during the closing operation has entered a predetermined fully closed proximity region,
A first determination is made as to whether or not a predetermined delay time has elapsed when there is a sensing signal from the fully closed proximity sensing means ;
When the delay time has elapsed, the non-contact detection sensor is disabled for a predetermined time so as to avoid the detection of the opening / closing body by the non-contact detection sensor when retreating together with the slide body, After the invalid time has elapsed, the non-contact detection sensor is enabled, and then the closing operation of the opening / closing body is stopped on the condition that the opening / closing body is fully closed.
When the delay time does not elapse, a second determination is made as to whether or not there is an open / close body stop signal that is a command for stopping the open / close body,
When it is determined that there is the opening / closing body stop signal, the opening / closing body is stopped , and when there is an opening / closing body closing signal during the stoppage, the opening / closing body is reversed to the outside of the full-close vicinity region. To work after closing
If there is no opening / closing body stop signal, the process returns to the first determination,
In the normal closing operation of the opening / closing body, the delay time is the time when the sliding body is in contact with the contact target portion when the sliding body is fully closed immediately after the end of the closing direction of the opening / closing body enters the region near the fully closed state. The opening / closing apparatus, which is set in advance, is a time until the path of the object detection medium by the non-contact detection sensor is retreated relatively by contact and immediately before being blocked by the end portion in the closing direction of the opening / closing body. . An opening / closing body that is closed by sliding the end portion in the closing direction to contact the contact target portion, and projecting from the end portion in the closing direction of the opening / closing body in the closing direction of the opening / closing body and contacting the contact target portion A slide body provided so as to retreat, and a non-contact detection sensor which is provided on a protruding end side of the slide body and detects an obstacle closer to the closing direction than the opening / closing body by an object detection medium which emits in the width direction of the opening / closing body In the opening / closing apparatus provided with a fully closed proximity detecting means for detecting that the closing direction end of the opening / closing body during the closing operation has entered a predetermined fully closed proximity region,
A first determination is made as to whether or not a predetermined delay time has elapsed when there is a sensing signal from the fully closed proximity sensing means;
When the delay time has elapsed, the non-contact detection sensor is disabled for a predetermined time so as to avoid the detection of the opening / closing body by the non-contact detection sensor when retreating together with the slide body, After the invalid time has elapsed, the non-contact detection sensor is enabled, and then the closing operation of the opening / closing body is stopped on the condition that the opening / closing body is fully closed.
When the delay time does not elapse, a second determination is made as to whether or not there is an open / close body stop signal that is a command for stopping the open / close body,
When there is the opening / closing body stop signal, the opening / closing body is forcibly closed while maintaining the non-contact detection sensor effectively,
If there is no opening / closing body stop signal, return to the first determination,
In the normal closing operation of the opening / closing body, the delay time is the time when the sliding body is in contact with the contact target portion when the sliding body is fully closed immediately after the end of the closing direction of the opening / closing body enters the region near the fully closed state. The opening / closing apparatus, which is set in advance, is a time until the path of the object detection medium by the non-contact detection sensor is retreated relatively by contact and immediately before being blocked by the end portion in the closing direction of the opening / closing body. . The opening / closing body is disposed at an opening / closing body main body provided in the opening / closing direction and an end of the opening / closing body in a closing direction, and is movable at least in the opening / closing body opening direction relative to the opening / closing body. A movable seat plate,
The slide body is provided with a movable seat plate sensor for sensing that the movable seat plate has moved in the opening / closing body opening direction relative to the opening / closing body,
6. The movable seat plate detection sensor is invalidated when the closing direction end portion of the opening / closing body during the closing operation is located in the region near the fully closed state. The switchgear according to claim 1 . The interval in the opening / closing body opening / closing direction of the region near the fully closed is set substantially equal to the protruding amount of the slide body in the protruding state,
The slide body is provided with an auxiliary sensor for sensing that the slide body has retreated from the protruding state,
The close-close proximity detecting means is means for determining, based on a detection signal of the auxiliary detection sensor, that the closing direction end of the opening / closing body during the closing operation has entered the close-close vicinity region. The switchgear according to any one of claims 1 to 6.

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