JP4809012B2 - 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 opening and closing device, as described in, for example, Patent Document 1, a sensor unit (projecting unit) is provided so as to protrude downward on the side surface of the seat plate (2) at the lower end of the opening and closing body (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 sensor unit (sensor 3) in the width direction of the opening / closing body is blocked by an obstacle. There is an invention.

By the way, according to the above prior art, since the sensor unit (sensor 3) is supported on the end of the opening / closing body (curtain 1) in the width direction, the opening / closing body (curtain 1) has a width caused by strong wind or the like. If the cross section is bent into a substantially bow shape, the light beam from the sensor unit (sensor 3) may shift in the opening / closing body width direction, and the sensing function of the sensor unit (sensor 3) may not be maintained normally.
Therefore, the sensor unit is supported on a guide rail for guiding the opening / closing body in the opening / closing direction so as to slide in the opening / closing body opening / closing direction, and further, the sensor unit is slid in the opening / closing body opening / closing direction opposite to the opening / closing body. The structure engaged with the opening / closing body can be proposed.
According to this configuration, the sensor unit has a structure that slides in the opening / closing body opening / closing direction while being supported by the guide rail. Therefore, even when the opening / closing body is bent by a strong wind or the like as in the prior art, the sensor unit emits from the sensor unit. It is difficult to tilt the light beam.

However, according to the said structure, there exists a possibility that the sliding failure of a sensor unit may arise due to the freezing between a sensor unit and a guide rail, or the biting of a foreign material.
Further, according to the above configuration, when the opening / closing body moves to the sensor unit side due to wind pressure or vibration during opening / closing operation, the moved opening / closing body collides with the sensor unit, and the collision causes the sensor unit to May cause a malfunction of the sensor unit or a decrease in the sensing performance of the sensor unit.
In addition, it is desired that the sensor unit having the above-described structure further includes a structure for detecting an obstacle on the side closer to the closing direction than the opening / closing body to further improve the certainty of obstacle detection. Has a structure that slides relative to the opening / closing body, and therefore, it is necessary to devise arrangement of the sensor so as not to impair the sensing performance.
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 to provide an opening / closing device that can satisfactorily maintain the sensing function of the sensor unit.

One means for solving the above-described problems is that the opening / closing body is closed by sliding the end portion in the closing direction to contact the contact target portion, and from the end in the width direction of the opening / closing body in the closing direction of the opening / closing body. An opening / closing device comprising: a sensor unit that protrudes and can sense an object closer to the closing direction than the opening and closing body; and a guide rail that guides the opening and closing body in the opening and closing direction. The sensor unit is opened and closed by the guide rail. The opening / closing body is supported to slide in the opening / closing direction and is engaged with the opening / closing body so as to slide in the opening / closing direction relative to the opening / closing body, and the engagement is applied to one of the sensor unit and the opening / closing body. Engagement between the provided convex portion and a concave groove provided on the other side and slidably fitted in the opening / closing body opening / closing direction with respect to the convex portion. Upon fully to slide relative to the opening and closing member opening direction, the abutment surface is provided to be in contact with the convex portion, the sensor unit is slidably engaged to the opening and closing direction relative perilla to the opening and closing member A non-contact detection sensor mounted on the slide body for non-contact detection of an object closer to the closing direction than the open / close body, and a support bracket for supporting electrical wiring of the non-contact detection sensor, The support bracket is fitted to the slide body in a concavo-convex shape in the opening / closing body width direction and is also fitted in a concavo-convex shape in the opening / closing body thickness direction .

The first embodiment includes an opening / closing body that is closed by sliding an end portion in the closing direction to abut against a contact target portion, and the opening / closing body that protrudes from an end in the width direction of the opening / closing body in the closing direction of the opening / closing body In an opening / closing device comprising a sensor unit capable of sensing an object closer to the closing direction and a guide rail for guiding the opening / closing body in the opening / closing direction, the sensor unit is slid by the guide rail in the opening / closing body opening / closing direction. Is engaged with the opening / closing body so as to slide in the opening / closing direction relative to the opening / closing body, and the engagement is a convex portion provided on one of the sensor unit and the opening / closing body. And a concave groove which is provided on the other side and fits slidably in the opening / closing body opening / closing direction with respect to the convex portion, in which the sensor unit is opened / closed relative to the opening / closing body. Body opening Upon fully slid in the direction, abutment face abutting the convex portion is provided.
Further, in the second embodiment, the abutment surface, when the closing body is substantially fully closed, that is arranged to have a closing member opening and closing direction of the gap between the convex portion.

Further, in the third 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 end side in the width direction of the opening / closing body An opening / closing device comprising a sensor unit capable of sensing an object closer to the closing direction than the opening / closing body and a guide rail for guiding the opening / closing body in the opening / closing direction, wherein the sensor unit is moved in the opening / closing body opening / closing direction by the guide rail. The sensor unit engages with the opening / closing body so as to slide in the opening / closing direction relative to the opening / closing body, and the sensor unit has a notch portion through which the opening / closing body can be inserted in the width direction. It is that provided.

According to a fourth aspect , the sensor includes a retaining member that contacts the guide rail when the opening / closing body moves in the width direction so as to move away from the guide rail at an end in the width direction of the opening / closing body. the notch units, that provided the retaining member can be inserted.
Here, the shape, configuration, and the like of the retaining member are limited as long as the opening / closing body abuts on the guide rail when the opening / closing body moves in the width direction so as to be separated from the guide rail and prevents the movement. For example, a roller or the like that is pivotally supported by the opening / closing body so that the outer peripheral surface is in contact with the guide rail may be used.

Further, in the fifth 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 end side in the width direction of the opening / closing body In an opening / closing apparatus comprising a sensor unit capable of sensing an object closer to the closing direction than the opening / closing body and a guide rail for guiding the opening / closing body in the opening / closing direction, the opening / closing body is provided across the opening / closing direction. An opening / closing body main body, and a movable seat plate connected to the closing direction end of the opening / closing body main body and movable relative to the opening / closing body main body in at least the opening / closing body opening direction. A movable seat plate sensing sensor that senses non-contact that the movable seat plate has moved in the opening / closing body opening direction relative to the opening / closing body, and is configured to slide in the opening / closing direction relative to the opening / closing body. Engaged with that The case portion, than the movable seat plate detecting sensor that are disposed in the opening and closing body closing direction.

In the sixth embodiment , the sensor unit is provided with a through-hole penetrating in the thickness direction of the opening / closing body, and the movable seat plate sensor is disposed so as to face the opening / closing body through the through-hole. The opening / closing body is provided with a convex portion projecting in the thickness direction thereof, and the sensor unit is provided with a concave groove that fits slidably in the opening / closing body opening / closing direction with respect to the convex portion, and the through hole penetrates the concave groove. It arrange | positioned rather than the hole at the opening-closing body closing direction side .

In the seventh embodiment , the sensor unit includes a slide body that is opposed to the opening / closing body and is slidably engaged in the opening / closing direction, and an object that is attached to the slide body and is closer to the closing direction than the opening / closing body. A non-contact detection sensor for non-contact detection, and a support bracket for supporting the electrical wiring of the non-contact detection sensor, the support bracket being fitted to the slide body in a concavo-convex shape in the opening / closing body width direction, and the opening and closing member thickness direction that has been fitted to uneven.

In the opening / closing device according to the above-described embodiment , the opening / closing body is used so as to perform only the closing operation (for example, a fire shutter device), and the opening / closing body is used so as to perform both the opening operation and the closing operation. Etc.
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.

In addition, the sensor unit may be any sensor unit configured to be able to detect an object closer to the closing direction than the opening / closing body by projecting from the end in the width direction of the opening / closing body to the closing direction of the opening / closing body. The unit includes an aspect composed of a single member and an aspect composed of a plurality of members.
The sensor unit may be provided only on one end side in the width direction of the opening / closing body, or may be provided on each of both end sides in the width direction of the opening / closing body.

The sensor unit includes both an aspect in which an object closer to the closing direction than the opening / closing body is sensed in contact and an aspect in which an object closer to the closing direction than the opening / closing body is sensed in a non-contact manner.
As an example of the former sensor unit, the sensor unit includes a sensing bar that is closer to the closing direction than the opening / closing body and extends in the width direction of the opening / closing body, and detects that an object closer to the closing direction than the opening / closing body is in contact with the sensing bar. The aspect made to do is mentioned.
As an example of the latter sensor unit, a non-contact detection sensor (for example, a photoelectric sensor) that detects an object closer to the closing direction than the opening / closing body with an obstacle detection medium (for example, light such as infrared rays, radio waves, or ultrasonic waves). A sensor, a radar, an ultrasonic sensor, etc.).
When the sensor unit is in the latter mode, the sensor unit is provided on both sides in the width direction of the opening / closing body, and the obstacle sensing medium is formed between both sensor units. Alternatively, the sensor unit may be provided only at one end in the width direction of the opening / closing body, and the obstacle sensing medium may be emitted from the sensor unit.

  Further, this sensor unit is preferably retracted by contact with the contact target part (for example, floor surface, ground, frame member) and protrudes by its own weight, When the closing direction of the opening / closing body is not downward, the sensor unit is urged in the protruding direction by an elastic body or the like, and the sensor unit is retracted in the opening / closing body opening direction by contact with the contact target portion. It is also possible.

Specific examples of the movable seat plate sensor in the fifth embodiment include a proximity switch and a photoelectric 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.

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 embodiment , even when the sliding failure of the sensor unit occurs due to, for example, freezing of condensed water or foreign matter caught between the sensor unit and the guide rail, the opening / closing body is closed. Then, the convex portion comes into contact with the contact surface, and the sensor unit can be forcibly slid in the closing direction together with the opening / closing body that performs the closing operation. Therefore, frozen ice and foreign matter etc. can be dropped due to vibration and friction during movement, impact when the sensor unit comes into contact with the contact target part, and normal sliding operation of the sensor unit can be restored, As a result, the sensing function of the sensor unit can be maintained well.

Further, according to the second embodiment , even if the slide failure occurs due to freezing or biting of foreign matter, the sensor unit closes the projecting portion against the contact surface when the opening / closing body is closed. Forcibly slides in the closing direction together with the open / close body that operates.
When the opening / closing body is substantially fully closed, the sensor unit moves the opening / closing body opening / closing direction gap between the contact surface and the convex portion in the opening / closing body closing direction by the impact when the opening / closing body is fully closed. Will do.
Therefore, the normal sliding operation of the sensor unit can be restored more reliably, and as a result, the sensing function of the sensor unit can be maintained well.

According to the third embodiment , when the opening / closing body moves to the sensor unit side due to wind pressure, vibration during opening / closing operation, or the like, the moved opening / closing body is inserted into the cutout portion of the sensor unit.
Therefore, the opening / closing body when moving in the width direction collides with the sensor unit, and the collision can prevent the sensor unit from being tilted and its sensing performance is lowered, or the sensor unit is broken, As a result, the sensing function of the sensor unit can be maintained well.

Furthermore, according to the fourth embodiment , since the notch portion can prevent interference between the sensor unit and the retaining member, the retaining member can be disposed on the end side in the closing direction of the opening / closing body. It is possible to effectively prevent the opening / closing body from being pulled out in the width direction from the guide rail due to the influence of the above or a criminal act.

In addition, according to the fifth embodiment , the engaging part of the opening / closing body is arranged closer to the opening / closing body closing direction than the arrangement position of the movable seat board detection sensor. It is possible to improve the sensing performance by the movable seat plate sensing sensor, and as a result, the sensing function by the sensor unit can be maintained well.

Further, according to the sixth embodiment , the concave groove in the sensor unit is arranged closer to the opening / closing body closing direction than the through hole that faces the movable seat plate sensor, so that the convex portion that fits into the concave groove and the movable portion are movable. Since interference with the seat plate detection sensor is avoided, the movable seat plate detection sensor can be brought close to the opening / closing body to improve the detection performance.

Furthermore, according to the seventh aspect , the support bracket is fitted in a concavo-convex shape in the opening / closing body width direction with respect to the slide body, and is fitted in the concavo-convex shape in the opening / closing body thickness direction with respect to the slide body. It will be fixed almost immovably.
Therefore, the support bracket can be fixed to the slide body without using a fastening tool such as a screw or a rivet, and the manufacturability is good .

Hereinafter, specific examples of the above embodiments will be described with reference to the drawings.
The opening / closing device according to the present embodiment is disposed in or inside an opening of a housing such as a house, building, warehouse, factory, underground shopping center, tunnel, or vehicle loading platform, and opens and closes the opening or opens a space inside the housing. An example of a shutter device that partitions and opens 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 sensor units 50a and 50b projecting 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. The movable seat plate 13 extends across the opening / closing body width direction through the connecting member 12 having a substantially frame shape in the longitudinal section at the end of the opening / closing body 11 on the closing direction side (lower side in the illustrated example). Connected.

The opening / closing body 10 comes off the guide rail 20 at the end of the opening / closing body 11 in the width direction when the opening / closing body 10 moves in the width direction so as to move away from the guide rail 20. A plurality of retaining members 11b are provided across the opening / closing body opening / closing direction.
Each retaining member 11b is formed in a substantially T-shaped cross section in which the bottom surface side of the guide rail 20 projects in the opening / closing body thickness direction (see FIG. 4), and the substantially T-shaped projecting portion is pulled out into the guide rail 20 It is impossible to engage.

According to the illustrated example, the retaining member 11b is provided for each of the slats 11a engaged with the guide rail 20, but may be disposed on a predetermined number of slats 11a. In this case, in order to effectively obtain the retaining action, the retaining members 11b are disposed at least on the slats 11a closest to the closing direction, and are disposed on the slats 11a at predetermined intervals from the slats 11a. preferable.
Further, each retaining member 11b is not limited to the illustrated example as long as it prevents the opening / closing body 10 from moving away from the guide rail 20 in the width direction, and is not limited to the illustrated example. It may be substantially L-shaped, substantially cross-shaped in cross section, or roller-shaped.

The movable seat plate 13 is connected to the lower end of the connecting member 12 connected to the lowermost end portion of the opening / closing body main body 11 so as to freely slide by a predetermined amount in the opening / closing body opening / closing direction.
The connecting member 12 is a member having a hollow frame shape in the longitudinal section, and supports a swing piece 14 so that one end side is swung 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, The connecting member 12 is inserted into the suspension bracket 12a at the end in the width direction, and is exposed from the opening 12a2 of the suspension bracket 12a.

According to the illustrated example, the suspension bracket 12a is formed in a substantially hollow frame shape in the longitudinal section, and is provided with convex portions 12a1, 12a1 projecting in the opening / closing body thickness direction on the lower end side, and these convex portions 12a1, 12a1. In addition, a sensor unit 50a (or sensor unit 50b) to be described later is suspended.
The suspension bracket 12a has an opening 12a2 at the position corresponding to the swing end side of the swing piece 14 to expose the swing end side to the outside.
In addition, the said convex parts 12a1 and 12a1 can also be set as the aspect protruded from the surface and the back surface of the connection member 12, without using the said suspension bracket 12a.

  The guide rail 20 is a member configured to surround an end of the opening / closing body 10 in the width direction, and a contact target portion p (for example, a floor surface, the ground, a frame member, etc.) seated by the opening / closing body 10. ) And the winding device 30.

The guide rail 20 includes a sensor unit guide member 21 therein (see FIG. 4), and the sensor unit guide member 21 supports a sensor unit 50a (or 50b), which will be described later, to slide in the opening / closing body opening / closing direction. is doing.
The sensor unit guide member 21 guides the sensor unit 50a (or 50b) to be freely slidable in the opening / closing body opening / closing direction and moves the sensor unit 50a (or 50b) in the opening / closing body width direction and the opening / closing body thickness direction. A guide portion 21a having a substantially U-shaped cross section that engages with the sensor unit 50a (50b) is formed across the opening / closing body opening / closing direction.
Further, the sensor unit guide member 21 is provided with a retaining member that prevents the retaining member 11b from coming off the guide rail 20 by approaching the constricted portion of the retaining member 11b from both sides in the opening / closing body thickness direction. A joint portion 21b is formed.
According to the illustrated example, the sensor unit guide member 21 is configured such that a separate member from the guide rail 20 is fixed to the guide rail 20. However, the sensor unit guide member 21 is a member formed integrally with the guide rail 20. There may be.

  In addition, the winding device 30 includes a winding shaft 32 that winds and unwinds the opening / closing body 10 in a storage case 31 in which an opening for allowing the opening / closing body 10 to appear and retract on the lower side, and the winding shaft. A drive source 33 that rotates the motor 32 in both directions electrically via power transmission means such as a chain and a sprocket, and a control unit 34 that controls a drive source 33 by processing a sensing signal from sensor units 50a and 50b described later. It has.

  The sensor unit 50 a and the sensor unit 50 b are provided on both sides of the opening / closing body 10 in the width direction, and sense an object closer to the closing direction than the opening / closing body 10.

  One sensor unit 50a protrudes from the closing direction end of the opening / closing body in the opening / closing body closing direction, and retracts 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 s in the opening / closing body width direction, and the movable seat 13 are relative to the opening / closing body body 11 and the connection member 12. The movable seat plate sensing sensor 53 senses that the sliding body 51 has been slid in the opening direction, and the auxiliary sensing sensor 54 senses that the slide body 51 has retracted from the protruding state (see FIGS. 1 to 3).

  The other sensor unit 50b includes a slide body 51 configured substantially the same as that of the sensor unit 50a, a capturing unit 52b that captures an object sensing medium emitted from the emitting unit 52a, and the sensor unit 50a. The movable seat plate sensor 53 and the auxiliary sensor 54 are configured in substantially the same manner as the above (see FIGS. 1 to 3).

The sensor unit 50b includes a support bracket 55 that supports electrical wiring of the discharge portion 52a, the capture portion 52b, the movable seat plate sensor 53, the auxiliary sensor 54, and the like via an electrical wiring guide member 56 described later. It has.
According to the illustrated example, the electrical wiring of the discharge unit 52a on the sensor unit 50a side, the movable seat plate sensor 53, the auxiliary sensor 54, and the like is inserted into the sensor unit 50b side through the movable seat plate 13 or the connecting member 12. Then, it is bundled with the electric wiring on the sensor unit 50 b side, inserted into the guide rail 20 on the right side of the figure, and connected to the control unit 34. For this reason, the support bracket 55 is provided only in the sensor unit 50b.
As another example, each of the sensor unit 50a and the sensor unit 50b includes a support bracket 55, and the electrical wiring on the sensor unit 50a side is inserted into the left guide rail 20 shown in the drawing and led to the control unit 34. The electrical wiring on the sensor unit 50b side may be inserted into the right guide rail 20 shown in the figure and guided to the control unit 34.

  The sensor unit 50a (or sensor unit 50b) is engaged with the convex portions 12a1 and 12a1 on the connecting member 12 side by engaging the concave grooves 51a and 51a in the slide body 51 with respect to the opening / closing body 10. It is engaged with the opening / closing body 10 in a substantially free-hanging manner so as to slide in the opening / closing direction.

Next, each part of the sensor unit 50a (or sensor unit 50b) will be described in detail.
According to the illustrated example, each slide body 51 has a substantially hollow rectangular parallelepiped frame shape elongated in the vertical direction, and engages with the opening / closing body 10 so as to slide in the opening / closing direction relative to the opening / closing body 10. Concave grooves 51a and 51a are provided.
Further, each slide body 51 includes concave portions 51b1 and 51b1 and through holes 51b2 and 51b2 on both wall portions arranged so as to sandwich the opening / closing body 10, and includes convex engagement portions 51c and 51c and a concave engagement portion 51d. Prepare.
Further, each slide body 51 includes guide engaging portions 51e and 51e on the bottom surface side of the guide rail 20 in the both wall portions, and includes a notch portion 51f on the wall portion facing the bottom surface of the guide rail 20.

Each concave groove 51a is disposed closer to the opening / closing body closing direction than the through hole 51b2, and is formed in a long shape extending in the opening / closing body opening / closing direction of the slide body 51.
An abutting surface 51a1 for abutting the convex portion 12a1 is formed at an end of the concave groove 51a on the opening / closing body closing direction side so as to be substantially orthogonal to the sliding direction of the slide body 51.

The contact surface 51a1 is arranged so as to have a gap h in the opening / closing body opening / closing direction with the convex portion 12a1 on the opening / closing body 10 side when the opening / closing body 10 is in a substantially fully closed state (FIG. 6). And FIG. 7).
More specifically, in a state where the opening / closing body 10 is substantially fully closed and the movable seat 13 is moved in the opening / closing body opening direction relative to the opening / closing body main body 11 by the contact with the contact target portion p, A gap h is formed between the contact surface 51a1 of the slide body 51 and the convex portion 12a1 on the opening / closing body 10 side so that the slide body 51 can be slightly slid up and down.
The gap h is appropriately set so that the slide body 51 when a sliding failure occurs is slid in the opening / closing body closing direction by an impact when the opening / closing body 10 is fully closed. It is set larger than the stroke.

The concave groove 51a may be provided in the vertical direction of the slide body 51 so as to cover the through hole 51b2, but in this case, the movable seat plate facing the opening / closing body 10 through the through hole 51b2. The movable seat plate detection sensor 53 and the auxiliary detection sensor 54 are formed from the opening / closing body 10 so as not to be detected or interfered with by the detection sensor 53 or the auxiliary detection sensor 54. In such a case, the detection accuracy when the movable seat plate sensor 53 detects the swing piece 14 and the detection accuracy when the auxiliary sensor 54 detects the opening / closing body 11 are required. May decrease.
Therefore, in the present embodiment, each groove 51a is arranged closer to the opening / closing body closing direction side than the movable seat plate detection sensor 53 and the auxiliary detection sensor 54 by the above configuration.

The concave portion 51b1 is formed so that the movable seat plate detection sensor 53 or the auxiliary detection sensor 54 is brought close to and fitted to the opening / closing body 10.
The through hole 51b2 in the recess 51b1 is disposed so that the movable seat plate sensor 53 or the auxiliary sensor 54 faces the swinging piece 14 of the opening / closing body 10.

Further, the convex engaging portions 51c and 51c and the concave engaging portion 51d are arranged on the wall surface aligned in the opening / closing thickness direction in the slide body 51, and the support bracket 55 is fixedly fitted.
That is, the convex engaging portions 51c and 51c are formed so as to fit in an uneven shape in the opening / closing body thickness direction with respect to a support bracket 55 described later, and the concave engaging portion 51d is opened and closed with respect to the support bracket 55. It is formed so as to be concavo-convex in the body width direction.
Therefore, the support bracket 55 is fixedly fixed to the slide body 51 by fitting with the convex engagement portions 51c and 51c and the concave engagement portion 51d.

  Each guide engaging portion 51e is a recess for engaging the guide portion 21a of the sensor unit guide member 21 of the guide rail 20, and is formed continuously over the entire length of the slide body 51 in the opening / closing body opening / closing direction. ing.

The notch 51f is substantially U-shaped with the opening / closing body opening direction side open, and the width in the opening / closing body thickness direction is determined by the opening / closing body main body 11, the connecting member 12, the suspension bracket 12a, and the movable seat. The size is set such that the plate 13 can be inserted and the constricted portion of the retaining member 11b can be inserted.
The dimension of the notch 51f in the opening / closing body opening / closing direction is such that when the slide body 51 moves in the opening / closing body opening direction relative to the opening / closing body 10, the retaining member 11b is inserted in the opening / closing body closing direction. It is set so as to prevent the retaining member 11 b from coming into contact with the slide body 51.
Further, the dimension of the notch 51f in the opening / closing body opening / closing direction is such that the slide body 51 does not contact the retaining member 11b before the protrusion 12a1 on the opening / closing body 10 side contacts the contact surface 51a of the slide body 51. According to a preferred example of the present embodiment, the gap between the slide body 51 and the retaining member 11b is set to be equal to or greater than the gap h when the opening / closing body 10 is substantially fully closed.

  Next, the members mounted on the slide body 51 will be described in detail. The discharge portion 52a and the capture portion 52b are non-contact detection sensors that detect an obstacle on the closing direction side of the opening / closing body 10 in a non-contact manner. According to a preferred example of this embodiment, a so-called photoelectric sensor is used. This photoelectric sensor captures an object sensing medium such as infrared rays emitted from the emitting part 52a in the opening / closing body width direction by the capturing part 52 and detects the object. When the medium path s is blocked by an object, a sensing signal is transmitted to the control unit 34.

The movable seat plate sensor 53 is a so-called proximity sensor that senses a metal object approaching and transmits a sensing signal thereof.
The movable seat plate detection sensor 53 is disposed in the vicinity of the swinging piece 14 of the opening / closing body 10 by being fitted in the recess 51b1, and swings in the opening / closing body opening direction through the through hole 51b2. The swinging piece 14 is sensed.
Therefore, according to the movable seat plate detection sensor 53, it can be detected that the opening / closing body 10 has come into contact with an obstacle on the closing direction side.

The auxiliary sensing sensor 54 is a proximity sensor similar to the movable seat plate sensing sensor 53, and when the slide body 51 slides in the opening / closing body opening direction relative to the opening / closing body 10, through the through hole 51b2. The open / close body 11 is sensed.
Therefore, the auxiliary sensing sensor 54 can sense that the slide body 51 has been slid in the opening / closing body opening direction relative to the opening / closing body 10.

  In a preferred example of the present embodiment, for example, when the movable seat plate 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, In order to be able to recognize the abnormality when there is an abnormality such as when only the slide body 51 no longer protrudes, each of the left and right sensor units 50a and 50b has a movable seat plate sensor 53 and an auxiliary sensor, respectively. Although the sensor 54 is provided, the movable seat plate sensor 53 and / or the auxiliary sensor 54 of either one of the sensor units 50a (50b) can be omitted.

Further, the support bracket 55 is formed by appropriately processing a metal plate-like material such as bending or pressing, so that the discharge portion 52a, the capture portion 52b, the movable seat plate sensor 53, the auxiliary sensor 54, etc. It is formed in a substantially frame shape through which electric wiring is inserted.
On the lower end side of the support bracket 55, support holes 55a and 55a for supporting an electric wiring guide member 56 described later are formed.
The support holes 55 a and 55 a are holes that hold the electric wiring guide member 56 by being fitted to both ends of the shaft portion 56 a on one end side in the length direction of the electric wiring guide member 56.
The electrical wiring guide member 56 is a hollow member configured to be freely deformed by linking a large number of frame-like members via the shaft portion 56a, and the discharge portion 52a, Electric wires such as the capturing unit 52b, the movable seat plate sensor 53, and the auxiliary sensor 54 are inserted, and the electric wires are led to the controller 34.
Conventionally, the electric wiring guide member 56 has to be fixed to the support bracket 55 or the like via a dedicated bracket or the like. However, according to a preferred example of the present embodiment, the dedicated bracket is omitted and the shaft portion 56a is omitted. Are held by fitting both ends thereof into the support holes 55a and 55a of the support bracket 55.

  The support bracket 55 fits the hole portions 55b and 55b formed on the surface on the slide body 51 side to the convex engagement portions 51c and 51c of the slide body 51, and the square holes 55c and 51c on the same surface. 55c is fixed to the slide body 51 by fitting the concave engagement portions 51d and 51d.

Next, the effect of the opening / closing device A having the above-described configuration will be described in detail.
As shown in FIGS. 5A and 5B, during the closing operation of the opening / closing body 10, when the movable seat plate 13 comes into contact with an obstacle or the like and moves in the opening / closing body opening direction, the swing piece 14 in the connecting member 12 is moved. Swings toward the opening / closing body opening direction, and the swing end side of the swing piece 14 is detected by the movable seat plate sensor 53.
Therefore, the control unit 34 recognizes that an obstacle or the like has come into contact with the end of the opening / closing body 10 in the closing direction in response to a detection signal from the movable seat plate sensor 53 and stops the opening / closing body 10 during the closing operation. Or the reversing operation is performed, or the closed opening / closing body 10 is prevented from closing.

  Further, when the path s of the obstacle sensing medium between the discharge unit 52a and the capturing unit 52b is obstructed by an obstacle or the like during the closing operation of the opening / closing body 10, the control unit 34 also responds to the sensing signal. Recognizes that there is an obstacle or the like on the closing direction side of the opening / closing body 10 and stops or reverses the opening / closing body 10 during the closing operation, or prevents the opening / closing body 10 during the closing operation from closing. And so on.

Further, as shown in FIGS. 6A to 6C, when the closing direction end portions of the sensor units 50a and 50b come into contact with the contact target portion p by the closing operation of the opening and closing body 10, the sensor units 50a and 50b. Slides in the opening / closing body opening direction relative to the opening / closing body 10.
At the time of the slide, the retaining members 11b on both ends in the width direction of the opening / closing body 10 insert the constricted portions into the notches 51f of the slide bodies 51, so that the sliding of the sensor units 50a, 50b is hindered by the retaining members 11b. Can be prevented.

  Then, the auxiliary sensing sensor 54 senses the opening / closing body 11, and in response to the sensing signal, the controller 34 recognizes that the sensor units 50 a and 50 b have slid in the opening / closing body opening direction relative to the opening / closing body 10. Then, for example, a predetermined process is performed such as disabling the discharge unit 52a and the capture unit 52b so that the movable seat 13 is not sensed by the discharge unit 52a and the capture unit 52b.

  In addition, during the opening / closing operation or full closing of the opening / closing body 10, when the closing direction end portion side of the opening / closing body 10 moves in the opening / closing body width direction due to the influence of vibration or strong wind during the opening / closing operation, the movement has occurred. The opening / closing body 10 is inserted into the notch 51 f of the slide body 51. Therefore, failure of the sensor units 50a and 50b and a decrease in sensitivity due to the collision of the opening / closing body 10 can be prevented.

In the unlikely event that the sensor units 50a and 50b have a sliding failure due to freezing, foreign object biting, or the like, the opening and closing body 10 is closed as shown in FIG. The convex portion 12a1 on the side contacts the contact surface 51a1 on the sensor unit 50a (or 50b) side, and the sensor unit 50a (or 50b) is forcibly pushed in the opening / closing body closing direction.
When the opening / closing body 10 is substantially fully closed, the movable seat plate 13 moves in the opening / closing body opening direction relative to the opening / closing body 10 by the contact with the contact target portion p, and the movable seat plate is moved by the movement. 13 abuts on the connecting member 12.
For this reason, the sensor unit 50a (or 50b) is forcibly pushed in the closing direction of the opening / closing body while foreign matter or the like is still caught between the sensor unit 50a (or 50b) and the guide rail 20. Even in this case, the sensor unit 50a (or 50b) causes the gap h between the contact surface 51a1 and the convex portion 12a1 to be opened and closed by the impact when the movable seat 13 contacts the connection member 12 as described above. Move in the closing direction.
In addition, the foreign matter or the like is caused by vibration, friction, or the like when the sensor unit 50a (or 50b) is forcibly pushed in the closing direction or when the movable seat plate 13 comes into contact with the contact target portion p. May come off.
Therefore, the normal sliding operation of the sensor unit 50a and / or the sensor unit 50b can be restored, and as a result, the sensing function of the sensor units 50a and 50b can be favorably maintained.

Note that, according to the above-described embodiment, in the normal operation in which no foreign matter is caught (see FIG. 6), the contact surface 51a1 of the slide body 51 and the convex portion 12a1 on the opening / closing body 10 side do not contact. Therefore, for example, a load sensing function is provided in the drive source 33, and the load value of the drive source 33 has a predetermined threshold value due to the contact between the contact surface 51a of the slide body 51 and the protrusion 12a1 on the opening / closing body 10 side. When exceeding, you may make it consider the slide abnormality of the slide body 51, and may make the opening / closing body 10 stop.
As another example, the drive source 33 is provided with a load sensing function, and when the opening / closing body 10 is substantially fully closed, the contact surface 51a1 of the slide body 51 and the projection 12a1 on the opening / closing body 10 side are in contact with each other. The opening / closing body 10 may be stopped by sensing the load at the time of contact, and the stop position or a position on the opening direction side a predetermined distance from the stop position may be automatically set as the lower limit position.

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 a side view which shows an example of the sensor unit in the switchgear. It is a principal part cross-sectional 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 before a sensor unit and a movable seat plate contact | abut to a contact | abutting object site | part, (b) is a sensor unit contact | abutting to a contact | abutting object site | part. Shows the state of sliding in the opening / closing body opening direction relative to the opening / closing body, and (c) shows the state in which the movable seat plate slides in the opening / closing body opening direction relative to the opening / closing body by contact with the contact target portion. Show. FIG. 4 is a cross-sectional view of the main part showing the operation when the sliding failure of the sensor unit is eliminated in the switchgear, wherein (a) shows a state in which the sensor unit is suspended by a convex part on the switchgear side, (b) Shows a state in which the sensor unit that has caused the sliding failure is forcibly pushed by the opening / closing body, and (c) shows that the sensor unit slides downward due to an impact when the opening / closing body contacts the contact target portion. Indicates the state.

A: Opening / closing device 10: Opening / closing body 12: Connection member 12a1: Protruding part 13: Movable seat 14: Oscillating piece 20: Guide rail 50b: Sensor unit 51: Slide body 51a: Groove 51a1: Contact surface 51f: Notch Part 53: Movable seat plate sensor 55: Support bracket

Claims (5)

An 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 end in the width direction of the opening / closing body. In an opening / closing apparatus comprising a sensor unit capable of sensing an object and a guide rail for guiding the opening / closing body in an opening / closing direction,
The sensor unit is supported by the guide rail so as to slide in the opening / closing body opening / closing direction, and is engaged with the opening / closing body so as to slide in the opening / closing direction relative to the opening / closing body,
The engagement is between a convex portion provided on one of the sensor unit and the opening / closing body, and a concave groove provided on the other side and fitted to the convex portion so as to be slidable in the opening / closing body opening / closing direction. Engagement,
The concave groove is provided with a contact surface that comes into contact with the convex portion when the sensor unit slides in the opening / closing body opening direction relative to the opening / closing body ,
The sensor unit includes a slide body that is opposed to the opening / closing body and is slidably engaged in the opening / closing direction, and a non-contact detection that is attached to the slide body and detects an object closer to the closing direction than the opening / closing body. A sensor and a support bracket that supports the electrical wiring of the non-contact sensor;
The opening and closing device characterized in that the support bracket is fitted to the slide body in a concavo-convex shape in the opening / closing body width direction and is also concavo-convexly fitted in the opening / closing body thickness direction .   The contact surface is arranged so as to have a gap in the opening / closing body opening / closing direction with the convex portion when the opening / closing body is in a substantially fully closed state. Switchgear. An 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 end in the width direction of the opening / closing body. In an opening / closing apparatus comprising a sensor unit capable of sensing an object and a guide rail for guiding the opening / closing body in an opening / closing direction,
The sensor unit is supported by the guide rail so as to slide in the opening / closing body opening / closing direction, and engages with the opening / closing body so as to slide in the opening / closing direction relative to the opening / closing body,
This sensor unit is provided with a notch that allows the opening / closing body to be inserted in the width direction thereof ,
At the end in the width direction of the opening / closing body, provided with a retaining member that contacts the guide rail when the opening / closing body moves in the width direction so as to be separated from the guide rail,
The opening / closing device , wherein the cutout portion of the sensor unit is provided so that the retaining member can be inserted therethrough . An 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 end in the width direction of the opening / closing body. In an opening / closing apparatus comprising a sensor unit capable of sensing an object and a guide rail for guiding the opening / closing body in an opening / closing direction,
The opening / closing body is connected to an opening / closing body main body provided in the opening / closing direction and an end of the opening / closing body in the 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 sensor unit includes a movable seat plate sensor for non-contact sensing that the movable seat plate moves in the opening / closing body opening direction relative to the opening / closing body, and slides in the opening / closing direction relative to the opening / closing body. Engaging with the opening / closing body so as to dispose the engaging portion closer to the opening / closing body closing direction than the movable seat plate sensor ,
The sensor unit is provided with a through-hole penetrating in the opening / closing body thickness direction,
The movable seat plate sensor is disposed so as to face the opening / closing body through the through hole,
The opening and closing body is provided with a convex portion protruding in the thickness direction, and the sensor unit is provided with a concave groove that fits slidably in the opening and closing body opening and closing direction with respect to the convex portion.
An opening / closing device characterized in that the concave groove is arranged closer to the opening / closing body closing direction than the through hole . The sensor unit includes a slide body that is opposed to the opening / closing body and is slidably engaged in the opening / closing direction, and a non-contact detection that is attached to the slide body and detects an object closer to the closing direction than the opening / closing body. A sensor and a support bracket that supports the electrical wiring of the non-contact sensor;
5. The support bracket according to claim 3, wherein the support bracket is fitted in an uneven shape in the opening / closing body width direction with respect to the slide body and is also fitted in an uneven shape in the opening / closing body thickness direction. Switchgear.

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