JP6673746B2 - Switchgear open / close determination device - Google Patents

Description

  The present invention relates to an opening / closing determination device of an opening / closing device that determines whether an opening / closing member is normally closed.

  2. Description of the Related Art In an opening / closing device such as an elevator or a moving partition device, an opening / closing device that automatically opens and closes an opening such as an entrance and a gap by a movable opening / closing member is used. In such an opening and closing device, an object such as a finger may be caught by an opening and closing member that automatically opens and closes, and a normal closing may not be performed. A technique disclosed in Patent Literature 1 is employed to detect whether or not an object is pinched by an opening / closing member and monitor whether or not a normal occlusion has been performed.

  According to Patent Document 1, an automatic door device (opening / closing device) is installed in an opening connecting the indoor and outdoor of a toilet, and has a sliding door provided with a roller that slides on a rail extending above the opening. A drive unit that opens and closes the sliding door, and the magnet attached to the roller is fully closed by approaching a fully closed detection switch provided on the closed end side in the extending direction of the rail. The detection switch detects a fully closed state of the sliding door and sends a signal to a control unit that controls opening and closing of the automatic door device.

Published Utility Model No. 61-71777 (Page 3, FIG. 2)

  However, in Patent Literature 1, even if an object such as a finger or clothes is sandwiched between the side end and the closed end of the sliding door, the fully closed detection switch operates and the normal closed state. There is a risk of being mistakenly recognized.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide an open / close determination device for an open / close device capable of accurately confirming a closed state of the open / close device.

In order to solve the above problems, an open / close determination device for an open / close device of the present invention includes:
An open / close determining device of an open / close device in which at least one of opposing open / close ends moves to open and close,
A pair of outer object sensors for detecting contact or proximity of the opposing opening / closing ends are interposed at both ends in the width direction of the opening / closing ends between the opening / closing ends. At least one inner object sensor for detecting an object is interposed between the outer object sensors of
A normal occlusion is determined when a pair of the outer object sensors detect and the inner object sensor is in a non-detection state.
According to this feature, the open / close determination device determines that the normal occlusion has been performed when the pair of outer object sensors are both detected and the inner object sensor is not detected, and accurately determines the closed state of the open / close device. You can check.

The distance between the opposing open / close ends is longer in the widthwise direction than in the widthwise direction in the closed state.
According to this feature, when the opening / closing device is closed, the outside of the opening / closing end is in contact with or close to each other, and the inside is surely separated from each other, so that the configuration of the opening / closing determination device can be simplified.

One of the open / close ends has a convex portion protruding in the open / close direction, and the other open / close end has a concave portion that is concave / convex fitted to the convex portion in the open / close direction in a closed state. , Provided at the tip of the projection.
According to this feature, when the opening / closing end is opened / closed, the tip of the convex portion precedes, so that the foreign object can be quickly detected by the inner object sensor.

The inside object sensor is provided at the opening / closing end that moves at the time of opening / closing.
According to this feature, the foreign object can be detected by the inside object sensor during opening and closing of the opening / closing end portion, so that the risk of the foreign object being pinched during closing can be reduced.

The outer object sensor and the inner object sensor are provided at any one of the open / close ends.
According to this feature, since the detection circuits of the outer object sensor and the inner object sensor may be provided at one of the open / close ends or in the vicinity thereof, the structure can be simplified.

The opening / closing determination device is abnormal if the outer object sensor and the inner object sensor are all in a non-detection state, and if the pair of outer object sensors both detect, and the inner object sensor is in a state other than the non-detection state. It is characterized by having a notifying means for discriminating and notifying an error.
According to this feature, when the closed state is determined to be abnormal by the open / close determination device, the notification unit can notify the error as an error, so that the abnormality of the closed state of the open / close device can be grasped.

The concave / convex fitting determination device has a convex portion protruding at one opposing end portion, and has a concave portion at the other opposing end portion for concave / convex fitting to the convex portion,
The distance between the opposing end portions is a concave / convex fitting determination device that determines the concave / convex fitting of the concave / convex fitting member whose inner side is longer than the outer side in the width direction in the state of the concave / convex fitting. hand,
A pair of outer object sensors for detecting the contact or proximity of the opposing opposing ends are interposed at both ends in the width direction of the opposing end between the opposing ends, and a pair of outer object sensors between the opposing ends are provided. At least one inner object sensor for detecting an object is interposed between the outer object sensors at the tip of the convex portion.
According to this feature, at the opposing end in the concave-convex fitting state, inside the opposing end where the inner object sensor is interposed in a state where the outer sides in the width direction of the opposing end where the outer object sensor is interposed are in contact with each other. Since the formed projections are not in contact, the uneven fitting determination device determines that normal uneven fitting has been performed when the pair of outer object sensors both detect and the inner object sensor is not detected. In addition, it is possible to accurately confirm the concave and convex fitting state.

FIG. 4 is a perspective view showing a state in which the partition panel is closed and pressed by the opening / closing device of the moving partition device to which the opening / closing determination device according to the embodiment is applied. It is sectional drawing which shows the structure of the opening / closing end part in a partition panel and a side part closing member. It is sectional drawing which shows the state which the opening and closing end part in a partition panel and a side part closing member was normally closed. It is a block diagram showing the structure of an open / close judgment device. (A) And (b) is sectional drawing which shows the specific example of the abnormality of the closing state of a switchgear. (A) And (b) is sectional drawing which shows a modification.

  An embodiment for implementing an opening / closing determination device for an opening / closing device according to the present invention will be described below based on an embodiment.

  An open / close determination device for a switchgear according to an embodiment will be described with reference to FIGS. 1 to 6. Hereinafter, the lower side of FIG. 3 is the front side (front side) of the open / close determining device of the opening / closing device, and the upper side of FIG. 3 is the rear side (rear side) of the open / close determining device of the opening / closing device, as viewed from the front side. The description will be made with reference to the up, down, left, and right directions at the time.

  The open / close discriminating apparatus 1 according to the present embodiment is a moving partition apparatus 100 having a plurality of partition panels 2, 2,..., Which is installed to close a lateral gap of a rearmost partition panel 2 ′ described later. The description will be made assuming that the closed state of the device 10 is determined. Therefore, first, the moving partitioning device 100 and the opening / closing device 10 to which the opening / closing determination device 1 (FIG. 4) is applied will be described.

  The moving partition device 100 is, for example, a partition device installed to partition an indoor space such as an office, an exhibition hall, or a conference room. As shown in FIG. 1, the moving partitioning device 100 includes a plurality of rails 3 whose upper ends are suspended by rails 3 installed on a ceiling C of an indoor space and suspension members 30 movable along the rails 3. , Are mainly composed of partition panels 2, 2, ....

  The plurality of partition panels 2, 2,... Are stored at the positions of storage rails 31 provided at one end of the rail 3 when not in use, and the partition panels 2, 2,. By manually and sequentially moving along the rail 3 in the direction of the movement restricting end portion 4, the partition panels 2, 2,... Are connected in a line, and the indoor space can be partitioned. It is to be noted that the movement restricting end 4 is an end of the partitioning panels 2, 2,... Constituting the moving partitioning device 100 which comes into contact with the leading partitioning panel 2 and restricts the movement of the leading partitioning panel 2. It is a predetermined side wall portion, a column, or the like that forms the portion.

  As shown in FIG. 1, a space X is recessed in a side wall V disposed at a position facing the movement restricting end portion 4, and the opening / closing device 10 is embedded in the space X. . Of the partition panels 2, 2,... Constituting the movable partition device 100, the rearmost partition panel 2 'is separated from the side 2a thereof by the side closing member 11 which can move in and out of the opening and closing device 10. The space between X and a side wall W (closed end) provided with a side wall opening (closed end) 4 ′ is closed. The closed end is a fixed portion that does not relatively move with respect to the rearmost partition panel 2 ′ at a position facing the movement regulating end 4.

  As shown in FIG. 2, a closed end member 5 (opening / closing end) having a substantially U-shaped concave portion 50 formed in the vertical direction is provided on the side 2 a of the rearmost partition panel 2 ′. It is fixed with bolts and nuts. Further, on the side portion 11a of the side portion closing member 11, a closing end member 6 (opening / closing end portion) in which a convex portion 60 protruding in the vertical direction is formed is fixed with a bolt and a nut.

  The closed end member 5 on the partition panel 2 'side mainly includes a concave portion 50 formed at the center in the front-rear direction, and a pair of flat extension portions 51, 51 extending front and rear from both side ends of the concave portion 50. It is configured. The closing end member 6 on the side closing member 11 side includes a convex portion 60 formed at the center in the front-rear direction, and a pair of flat extension portions 61, 61 extending front and rear from both side ends of the convex portion 60; It is mainly composed of

  Touch sensors 7A, 7B (outside object sensors) are provided on surfaces 61a, 61a of the extension portions 61, 61 of the closing end member 6 on the side closing member 11 side facing the closing end member 5 on the partition panel 2 'side. Each is attached. Further, a touch sensor 17 (inner object sensor) is attached to a tip 60e of the projection 60. The touch sensors 7A, 7B and the touch sensor 17 are provided over the closed end member 6 in the vertical direction.

  In a state where the side closing member 11 of the opening / closing device 10 advances and the space between the rearmost partition panel 2 ′ and the side closing member 11 is accurately closed, as shown in FIG. 5 and the opposing surfaces 61a, 61a of the closed end member 6 are close to each other, and the touch sensors 7A, 7B are in contact with the opposing surfaces 51a, 51a. Opposing ends of the closing end member 5 and the closing end member 6 constitute an open / close end of the moving partitioning device 100.

  The distance between the opposing surfaces 51 a, 51 a of the closed end member 5 and the bottom 50 a of the concave portion 50 is equal to the distance between the opposing surfaces 61 a, 61 a of the closed end member 6 and the tip of the touch sensor 17 provided on the front end 60 e of the convex portion 60. , The bottom portion 50a of the concave portion 50 fitted with the concave and convex portions and the tip of the touch sensor 17 provided on the convex portion 60 are in a non-contact state.

  Next, the opening / closing determination device 1 that determines the closed state of the opening / closing device 10 will be described. As shown in FIG. 4, the open / close determination device 1 is a PLC that determines the closed state of the switch device 10 based on the detection results of the touch sensors 7A, 7B and the touch sensor 17 and the touch sensors 7A, 7B and the touch sensor 17. A control unit 9 for controlling the operation of an advancing / retracting mechanism 12 that is connected to the determination processing device 8 and moves the side closing member 11 of the opening and closing device 10 in and out; 8 and a notifying means 80 connected thereto.

  Further, the touch sensor 17 constitutes an inner object sensor capable of detecting an object such as a foreign object at the center in the front-rear direction between the rearmost partition panel 2 'and the side closing member 11, and the touch sensors 7A and 7B. Constitutes an outer object sensor capable of detecting an object at both front and rear ends between the rearmost partition panel 2 ′ and the side closing member 11.

  When the closing by the opening / closing device 10 is completed normally, the opposing surfaces 51a, 51a of the closing end member 5 and the opposing surfaces 61a, 61a of the closing end member 6 come close to each other, and the touch sensors 7A, 7B move to the opposing surfaces 51a, 51a. The touch sensor 7A, 7B detects the object by contacting the touch sensor 51a, and a detection signal is transmitted from the touch sensors 7A, 7B to the determination processing device 8. In addition, as described above, the bottom portion 50a of the concave portion 50 fitted with the concave and convex portions and the tip of the touch sensor 17 provided on the convex portion 60 are in a non-contact state. Indicates that no object is detected, and a detection signal is not transmitted to the determination processing device 8.

  The determination processing device 8 determines the closed state of the switching device 10 based on the combination of the electric signals transmitted from the touch sensors 7A and 7B and the touch sensor 17 described above, and determines that the closed state of the switching device 10 is abnormal. In this case, an electric signal such as a stop signal can be sent to the control unit 9. Further, the determination processing device 8 can notify an error by using the notifying means 80 when it is determined that the closing state of the opening / closing device 10 is abnormal.

  The control unit 9 controls the operation of the forward / backward mechanism 12 that moves the side closing member 11 of the opening / closing device 10 forward and backward, and based on a combination of the stop signal sent from the determination processing device 8, the side closing member 11. The operation of the advance / retreat mechanism 12 can be controlled so as to stop the advance / retreat operation.

  When the advance / retreat mechanism 12 of the opening / closing device 10 operates and the advancement of the side closing member 11 is started, the opening / closing determination device 1 starts detection of an object by the touch sensors 7A and 7B and the touch sensor 17, and the touch sensor 7A. , 7B, and the touch sensor 17, when the detection signal is received, the closing state determination processing is performed.

  When receiving the detection signal of detecting the object from the touch sensor 17 as the inner object sensor, the determination processing device 8 determines that the closing state of the opening / closing device 10 is abnormal.

  This indicates that an object has come into contact with the touch sensor 17 provided at the tip during the closing operation of the side closing member 11, and for example, there is an obstacle in the movement path of the side closing member 11. Thus, it can be said that a state in which the closing operation cannot be performed normally can be detected. As another example, as shown in FIG. 5A, a state where the concave portion 50 and the convex portion 60 are not correctly fitted with the concave and convex portions, etc. can also be determined to be abnormal in the closed state.

  When receiving the detection signal for detecting the object from the touch sensor 7A as the outer object sensor, the determination processing device 8 determines whether the detection signal for detecting the object is also received from the touch sensor 7B as the outer object sensor. Is determined. When the detection signal is also received from the touch sensor 7B, the determination processing device 8 determines that the closing state of the switching device 10 is normal, sends a stop signal to the control unit 9, and operates the switching device 10. Is stopped, and the closed state determination process ends.

  This is because, since the detection signals are received from both the touch sensor 7A and the touch sensor 7B, it is determined that the contact surfaces 51a, 51a of the closing end member 5 on the side of the partition panel 2 'opposing each contact. ing.

  On the other hand, when the detection signal is received from the touch sensor 7A and the detection signal is not received from the touch sensor 7B, the closing state is determined to be abnormal, and a stop signal is sent to the control unit 9 to operate the opening / closing device 10. Is stopped, and the closed state determination processing ends. At this time, the determination processing device 8 performs a process of sending a signal to the notifying unit 80 and notifying an error.

  Note that if the touch sensors 7A and 7B and the touch sensor 17 are all in the non-detected state and if the touch sensors 7A and 7B are both in the detected state and the touch sensor 17 is in a state other than the non-detected state, it is determined that there is an abnormality. Good.

  This is because the detection signal is received only from the touch sensor 7A, and therefore, as shown in FIG. 5B, for example, the facing surface 51a of the closing end member 5 on the partition panel 2 'side facing the touch sensor 7A. Is determined in which an object such as a finger has entered.

  When the detection processing device 8 receives a detection signal of an object from the touch sensors 7A, 7B and the touch sensor 17, the determination processing device 8 stores each detection time. The time difference (detection time difference) between the detection times of the touch sensors 7A, 7B and the touch sensor 17 can be calculated. The detection time difference indicates, for example, a time difference from when a detection signal is received from one touch sensor 7A to when a detection signal is received from the other touch sensor 7B.

  The determination processing device 8 determines whether the detection time difference is shorter than a predetermined time. For example, if the time from when the detection signal for detecting the object is received from the touch sensor 7A to the time when the detection signal for detecting the object is received from the touch sensor 7B is shorter than a predetermined time, only the touch sensor 7A Is detected to be within the range of the error of the contact timing when the closing is normally completed, and the closing state of the switching device 10 is not determined to be abnormal. On the other hand, when the detection time difference is longer than the predetermined time, an object such as a finger enters the gap between the touch sensor 7A and the opposing surface 51a of the closed end member 5 on the partition panel 2 'side facing the touch sensor 7A at that time as described above. It determines the state and the like. Further, for example, it is conceivable that an object has entered between the opposing surfaces 51a, 51a of the closing end member 5 on the partition panel 2 'side facing the touch sensors 7A and 7B. It is set to determine.

  When a detection signal from the touch sensor 7B is received, whether or not a detection signal from the touch sensor 7A is received is used as a criterion.

  The notifying means 80 is not limited as long as it can notify the worker. For example, the notifying means 80 preferably displays a warning indicating an error on a monitor, sounds a buzzer, or flashes or lights a lamp. Alternatively, a configuration may be adopted in which the operator is notified of the abnormality by stopping the operation of the opening and closing device 10 without separately providing the notification unit 80.

  As described above, in the normal closed state of the opening and closing device 10, the opposing surfaces 51a, 51a of the closed end member 5 and the opposing surfaces 61a, 61a of the closed end member 6 come close to each other, so that the touch sensors 7A, 7B. Abuts against the opposing surfaces 51a, 51a, and the bottom 50a of the concave portion 50, which is fitted with the concave and convex, and the tip of the touch sensor 17 provided on the convex portion 60 surely come into a non-contact state. The closed state of the opening / closing device 10 can be easily determined based on a combination of the detection signals of the touch sensors 7A, 7B and the touch sensor 17, and the configuration of the opening / closing determination device 1 can be simplified.

  In addition, since a contact sensor can be used as a sensor for detecting an object such as a foreign substance between the rearmost partition panel 2 'and the side closing member 11, the open / close determination device 1 can be compared with a case where a non-contact sensor is used. The configuration can be simplified.

  As described above, the embodiments of the present invention have been described with reference to the drawings. However, the specific configuration is not limited to these embodiments, and even if there are changes and additions without departing from the gist of the present invention, they are included in the present invention. It is.

  For example, in the present embodiment, an example in which a touch sensor is used as an object sensor has been described. However, the present invention is not limited to this, and contact with an object to be detected can be prevented by using a non-contact sensor. In addition, you may comprise combining a contact sensor and a non-contact sensor.

  Also, as in the modification shown in FIG. 6A, concave portions 71, 71 extending vertically are provided on the opposing surfaces 61a, 61a of the closed end member 6, respectively, so that the tips project from the concave portions 71, 71. , And the touch sensors 70A and 70B may be respectively attached. According to this, as shown in FIG. 6B, when the touch sensors 70A and 70B detect the opposing surfaces 51a and 51a of the closed end member 5, the opposing surfaces 51a and 51a Since the surfaces 61a, 61a are in contact with each other, damage to the touch sensors 70A, 70B due to collision with the opposing surfaces 51a, 51a is suppressed, and the sealing performance of the side closing member 11 is not impaired.

  Further, when the side closing member 11 of the opening / closing device 10 advances, the touch sensors 7A and 7B, which are outer object sensors, can detect an object while the side closing member 11 is moving. An object can be detected before the block 5 and the closed end member 6 are fitted and recessed and closed, and the risk of pinching the object can be reduced.

  Further, since the touch sensors 7A, 7B and the touch sensor 17 are provided collectively on the closed end member 5, the structure such as wiring can be simplified.

  Further, since the touch sensors 7A and 7B and the touch sensor 17 are provided on the side closing member 11 side that can move, the objects existing on the movement trajectories of the touch sensors 7A and 7B and the touch sensor 17 can be detected as foreign substances. it can.

  Further, the touch sensors 7A, 7B and the touch sensor 17 are not limited to the configuration provided on the closing end member 5 on the side closing member 11 side. For example, the touch sensors 7A, 7B are provided on the side closing member 11 side, 17 may be provided on each of the closed end members 6 on the partition panel 2 'side.

  Further, the touch sensors 7A, 7B and the touch sensor 17 can detect the center in the front-rear direction between the rearmost partition panel 2 'and the side closing member 11, and the front and rear end sides, respectively. The number to be provided, the detection range, and the like may be freely configured.

  Also, the touch sensors 7A, 7B and the touch sensor 17 have been described as being provided over the up-down direction of the closed end member 6, but are provided, for example, only in the height direction within the reach of humans. Configuration may be used.

  In the above-described embodiment, the opposing opening / closing end portions are described as being fitted with concave and convex. However, the present invention is not limited to this, and in a state where the opening / closing device is normally closed and the opposing opening / closing end portions are in contact with each other, If the object sensor cannot detect an object, the shape of the open / close end may be freely selected, for example, such that one open / close end is a plane and the other open / close end has a concave portion. There may be.

  Further, the open / close end is not limited to the configuration constituted by the opposed ends of the closed end members 5 and 6 fixed separately to the side 2a of the partition panel 2 'and the side 11a of the side closed member 11, respectively. For example, it may be constituted by a concavo-convex opposing end provided directly on the side 2a of the partition panel 2 'and the side 11a of the side closing member 11.

  Further, the opening / closing device 10 to which the opening / closing determination device 1 is applied may be one in which both closed end members move.

  Further, the control section may be freely configured as long as it can receive the electric signal from the determination section and send a stop signal or the like to the advance / retreat mechanism of the opening / closing device.

  Further, the method of detecting the completion of closing of the opening and closing device may be freely configured, for example, when a side closing member is closed by the opening and closing device, a limit switch or the like that sends a closing signal to the control unit is provided. You may.

  In addition, although an example has been described in which the open / close determination device 1 is applied to a partition panel device, it can be applied to a device that closes a gap with a movable open / close member, for example, an open / close door. In addition, although the description has been given of the case where the opening / closing member is slidably movable, the opening / closing member may be, for example, rotationally movable regardless of the direction of movement.

  Although the opening / closing determination device of the opening / closing device has been described as the embodiment, the unevenness fitting determination device that determines the uneven fitting of the uneven fitting member may be used. In this case, the fitting between the convex portion 60 and the concave portion 71 of the concave / convex fitting member having the convex portion 60 and the concave portion 71 in the above embodiment may be determined.

DESCRIPTION OF SYMBOLS 1 Opening / closing discrimination device 2, 2 'Partition panel 3 Rail 5 Closed end member (opening / closing end)
6 Closed end member (open / close end)
7A, 7B Touch sensor (outside object sensor)
8 Judgment processing device (judgment unit)
9 control unit 10 opening / closing device 11 side closing member 12 advance / retreat mechanism 17 touch sensor (inner object sensor)
50 concave portion 50a bottom portion 51 extended portion 51a opposed surface 60 convex portion 60e tip portion 61 extended portion 61a opposed surface 70A, 70B touch sensor 71 concave portion 80 notifying means 100 moving partitioning device

Claims (7)

An open / close determining device of an open / close device in which at least one of opposing open / close ends moves to open and close,
A pair of outside object sensors for detecting contact or proximity of the opposing opening / closing ends are interposed at both ends in the width direction of the opening / closing ends between the opening / closing ends. At least one inner object sensor for detecting an object is interposed between the outer object sensors of
An opening / closing determination device for an opening / closing device, wherein when the pair of outer object sensors detects and the inner object sensor is in a non-detection state, the closing is determined to be normal.   The open / close determination device for an open / close device according to claim 1, wherein the distance between the opposed open / close end portions is longer in the closed state than in the outside in the width direction.   One of the open / close ends has a convex portion protruding in the open / close direction, and the other open / close end has a concave portion that is concave / convex fitted to the convex portion in the open / close direction in a closed state. The open / close determination device for an open / close device according to claim 1, wherein the open / close determination device is provided at a tip of the convex portion.   The open / close determination device for an open / close device according to any one of claims 1 to 3, wherein the inner object sensor is provided at the open / close end that moves at the time of opening / closing.   The open / close determination device for an open / close device according to any one of claims 1 to 4, wherein the outer object sensor and the inner object sensor are provided at any one of the open / close ends.   The opening / closing determination device is abnormal if the outer object sensor and the inner object sensor are all in a non-detection state, and if the pair of outer object sensors both detect, and the inner object sensor is in a state other than the non-detection state. The open / close determination device for an open / close device according to claim 1, further comprising a notification unit configured to determine and notify an error. One of the opposed ends has a protruding portion, and the other opposing end has a concave portion that fits into the convex portion.
The distance between the opposing end portions is a concave / convex fitting determination device that determines the concave / convex fitting of the concave / convex fitting member whose inner side is longer than the outer side in the width direction in the state of the concave / convex fitting. hand,
A pair of outer object sensors for detecting the contact or proximity of the opposing opposing ends are interposed at both ends in the width direction of the opposing end between the opposing ends, and a pair of outer object sensors between the opposing ends are provided. The at least one inner object sensor for detecting an object is provided at the tip of the projection between the outer object sensors.

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