JP2008214857A - Opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening and closing device capable of stopping the closing motion of an opening and closing body by contact with an obstacle by employing a structure hardly influenced by failure of power supply etc. <P>SOLUTION: This opening and closing body 10 comprises a main body 11 of the opening closing body, which can make the closing motion while sliding, and a seat plate member 13 which is connected to a closing-direction end of the main body 11 so as to be movable in an opening direction while facing the main body 11. A width-direction end of the opening and closing body 10 is surrounded by a guide rail 20 and guided in a closing direction. The opening and closing body 10 is provided with a locking member 12 which moves in the thickness direction of the opening and closing body in synchronization with the movement of the seat plate member 13 in the opening direction, so as to be locked to the guide rail 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an opening / closing device adapted to stop the closing operation of the opening / closing body when the opening / closing body during the closing operation comes into contact with an obstacle, and more particularly to an opening / closing device suitable as a fire shutter device.

  Conventionally, in this type of invention, when the opening / closing body (shutter curtain 2) during the closing operation is in contact with an obstacle on the closing direction, such as that described in Patent Document 1, for example, The movable seat plate (lower seat plate 101) at the lower end of the body is relatively raised by the pressing force from the obstacle, and the rise of the movable seat plate is sensed by the sensing unit (micro switch 105), and this sensing signal is coded. (11a to 11c) is transmitted to the control device (8), and the brake mechanism of the switch (7) is actuated by the control signal from the control device (8) to close the opening / closing body (shutter curtain 2). There is something to stop.

The structure of the brake mechanism in the opening / closing machine (7) will be described in detail. When the electromagnetic solenoid (electromagnetic clutch 17) is in a non-energized state, for example, as described in Patent Document 2, the brake drum ( 4) is brought into contact with the brake shoe (2) by the urging force of the brake spring (16), and the rotation of the drive shaft (motor shaft 1) is braked.
When the electromagnetic solenoid (electromagnetic clutch 17) is energized, the brake drum (4) is separated from the brake shoe (2) by being attracted by the magnetic force of the electromagnetic solenoid, so that the drive shaft (motor shaft 1) rotates. It becomes a free state.

  Therefore, for example, when the opening / closing apparatus described in Patent Document 1 is equipped with the switch described in Patent Document 2, the electromagnetic solenoid (electromagnetic clutch 17) is energized to open / close the shutter (shutter curtain). 2) can be lowered by its own weight, and when the opening / closing body (shutter curtain 2) comes into contact with an obstacle during its own weight drop, if the electromagnetic solenoid (electromagnetic clutch 17) is deenergized, The closing operation of the opening / closing body (shutter curtain 2) can be stopped.

  However, in the configuration as described above, a structure (fixed pulley 18a, movable pulley 18b) that houses a sensing unit (micro switch 105) that senses the rise of the movable seat plate (lower seat plate 101) and cords (11a to 11c). , Flat bar 20 etc.) is complicated and is likely to cause an increase in cost.

Further, when the opening / closing device is used as a fire shutter device, for example, even when a power failure caused by a fire or the like occurs, the electromagnetic solenoid (electromagnetic clutch 17) is energized and the opening / closing body (shutter curtain 2) is self-weighted. It is equipped with a battery so that it can descend.
However, even in such a configuration, the energization state of the electromagnetic solenoid (electromagnetic clutch 17) cannot be maintained when the power of the battery cannot be sufficiently obtained due to poor maintenance or the like. There is a possibility that the (shutter curtain 2) cannot be lowered by its own weight, or the opening / closing body under its own weight is stopped halfway.
JP 2004-308222 A Japanese Utility Model Publication No. 01-118084

  The present invention has been made in view of the above-described conventional circumstances, and the problem is that the closing operation of the opening / closing body is stopped by contact with an obstacle with a structure that is hardly affected by a power failure or the like. An object of the present invention is to provide a switchgear that can be used.

  In order to solve the above-mentioned problems, a first invention includes an opening / closing body main body that can be closed while sliding, and is connected to an end of the opening / closing body main body in a closing direction and moves in an opening direction relative to the opening / closing body body An opening / closing body comprising a movable seat plate capable of forming an opening / closing body, wherein an end portion in the width direction of the opening / closing body is surrounded by a guide rail and guided in the closing direction. A locking member is provided which moves in the opening / closing body thickness direction in conjunction with the movement in the opening direction and is locked to the guide rail.

Here, the above-described opening / closing device includes an aspect in which the opening / closing body is used to perform only the closing operation (for example, a fire shutter device), an aspect in which the opening / closing body is used to perform both the opening operation and the closing operation, and the like. Including.
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. A mode (for example, an overhead door etc.) etc. which are stored without being stored and fed out from the storage site 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, a net-like object are provided in the opening / closing direction, or a slat. , A panel, a pipe, a sheet-like material, a net-like material, or the like.

Moreover, the said locking member is good also as a member which connects the said opening-and-closing body main body and the said seat board member between these, for example, and is good also as a member supported by the said opening-and-closing body main body.
In the configuration of “the locking member that moves in the opening / closing body thickness direction and is locked to the guide rail”, the locking member is moved in the opening / closing body thickness direction by an arcuate motion and locked to the guide rail. And a mode in which the locking member is moved in the opening / closing body thickness direction by a linear motion and locked to the guide rail.

  In the second invention, the locking member is connected such that the opening direction side swings in the opening / closing body thickness direction with respect to the opening / closing body body, and the closing direction side is in the opening / closing body thickness direction with respect to the movable seat plate. A member connected so as to swing to the opening / closing body, and swings in the opening / closing body thickness direction by the movement of the movable seat plate relative to the opening / closing body to engage with the guide rail. It is characterized by.

Further, in the third invention, the opening / closing body main body is provided with a swinging member that swings when pressed by the movable seat plate when moved in the opening direction over the opening / closing body width direction,
The locking member is provided so as to be pressed by the swinging member to swing in the opening / closing body thickness direction and to be locked to the guide rail.

  Further, the fourth invention is characterized in that an uneven portion is provided in the guide rail so as to be locked to the locking member when moved in the opening / closing body thickness direction.

  According to a fifth aspect of the present invention, the locking member includes a roller member so as to be engaged with and disengaged from the concave portion of the concavo-convex portion.

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 present invention is configured as described above, the following effects can be obtained.
According to the first invention, when the movable seat plate moves in the opening direction due to contact with the obstacle, the locking member moves in the opening / closing body thickness direction and locks to the guide rail. Therefore, the closing operation of the opening / closing body can be stopped by contact with an obstacle by a structure that is not easily affected by a power failure or the like.

  Furthermore, according to 2nd invention, a latching member can be made into the specific aspect with favorable operativity.

  Further, according to the third invention, even if an obstacle partially abuts in the width direction of the movable seat plate and one side of the movable seat plate in the opening / closing body width direction is biased and moves in the opening direction. The movable seat plate that moves in a biased manner can press and swing the swinging member extending in the opening / closing body width direction and can be locked to the guide rail.

  Furthermore, according to the fourth aspect of the invention, the locking member locks favorably with respect to the guide rail via the uneven portion.

  Furthermore, according to the fifth aspect, the roller member can smoothly engage and disengage the locking member and the recess. For example, when the obstacle is removed and the movable seat plate moves in the closing direction, the roller By quickly removing the member from the recess, the closing operation of the opening / closing body body and the movable seat plate can be resumed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The present embodiment is arranged in or inside an opening part or inside 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 partitions or opens the space inside the housing. As an especially preferred embodiment, an example applied to a fire-proof shutter device that is automatically closed in the event of an emergency such as a fire to prevent the spread of flames and smoke will be described.

  The opening / closing device 1 includes an opening / closing body 10 that opens and closes by sliding an end portion in the closing direction, a guide rail 20 that surrounds and guides the opening / closing direction of the opening / closing body 10 in the width direction (left-right direction in FIG. 1), A winding device 30 that winds and unwinds the opening / closing body 10, and the obstacle X exists in the opening / closing path of the opening / closing body 10, and the opening / closing body 10 during the closing operation contacts the obstacle X The closing operation of the opening / closing body 10 is stopped by moving the locking member 12 on the closing direction side of the opening / closing body 10 in the opening / closing body thickness direction and locking it to the guide rail 20.

  The open / close body 10 includes an open / close body main body 11 formed 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 slats 11a and 11a adjacent vertically. The locking member 12 connected to swing in the opening / closing body thickness direction with respect to the closing direction end of the opening / closing body main body 11, and the locking member 12 connected to swing in the opening / closing body thickness direction. It is comprised from the seat plate member 13 made.

  The locking member 12 includes a swinging body portion 12a provided between the opening / closing body main body 11 and the seat plate member 13 over substantially the entire length in the width direction of the opening / closing body 10, and an end in the width direction of the swinging body portion 12a. The roller member 12b protrudes from the portion.

According to the illustrated example, the swinging main body portion 12a has a substantially parallelogram in cross section, and a substantially central portion in the opening / closing body thickness direction on the upper end side thereof is a slat 11a on the lowermost end side constituting the opening / closing body main body 11. A seat plate member 13 (to be described later) is pivotally supported at a substantially central portion in the opening / closing body thickness direction on the lower end side.
The swinging main body 12a may be a solid block-like member as shown in the drawing, a hollow mold member, or a member obtained by bending a metal plate into a frame shape. Also good. Further, according to the illustrated example, the cross-sectional shape of the swinging main body 12a is a substantially parallelogram as a particularly preferable aspect, but other examples include a rectangular cross-section, an oval cross-section, and other shapes. It is possible.
Note that the cross-sectional shape of the swinging main body portion 12a may be at least the shape of the portion located in the guide rail 20. That is, the portion outside the guide rail 20 may have a cross-sectional shape similar to that of the other slats 11a, or may be a parallelogram as described above, and the cross-sectional shape is not limited.

  The roller member 12b is pivotally supported at the end in the width direction of the swinging main body 12a with its rotating shaft directed in the opening / closing body width direction, and swings as shown in FIG. One end side of the opening / closing body thickness direction (left and right direction in FIG. 2) on the closing direction end portion side (lower end side in the illustrated example) of the main body portion 12a (in other words, the swinging main body portion 12a having a substantially parallelogram shape in cross section). Is arranged at the lowermost corner).

The movable seat plate 13 is a member that protrudes downward from the locking member 12 over substantially the entire length in the opening / closing body width direction. The upper end side of the seat plate member 13 is pivotally supported with respect to the locking member 12.
According to the illustrated example, the movable seat plate 13 is formed to have a substantially inverted T-shaped cross section, but may have a substantially frame-shaped cross section or other shapes. In the illustrated example, the flange portion (the end portion side in the opening / closing body thickness direction) of the seat plate member 13 is outside the guide rail 20 (in other words, the guide rails 20 on both sides in the opening / closing body width direction (left and right in FIG. 1)), 20).

The guide rail 20 is a member having a substantially U-shaped cross section that surrounds 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, or a frame member) seated by the opening / closing body 10. Etc.) and the winding device 30 (see FIG. 1).
In the guide rail 20, the wall surface on one end side in the opening / closing body thickness direction (left end side in FIG. 2) is locked by the roller member 12b of the locking member 12 when moved in the opening / closing body thickness direction. As shown, the uneven portion 21 is fixed.

The concavo-convex portion 21 is a member in which, for example, the concave portions 21a and the convex portions 21b are alternately arranged in the opening / closing body opening / closing direction by bending a belt-shaped metal plate.
According to the illustrated example, the recess 21a is formed in a substantially trapezoidal cross section.
Moreover, the convex part 21b is formed in the cross-sectional substantially triangular shape. The upper inclined surface of the convex portion 21b is set at an appropriate angle so that the roller member 12b of the locking member 12 can be easily engaged and disengaged.
The concavo-convex portion 21 is disposed at least on the closing direction side of the guide rail 20 so as to extend in the opening / closing body opening / closing direction, and more preferably, is disposed over substantially the entire length of the guide rail 20.

  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. And an opening / closing device 40 that rotates and brakes 32 via a power transmission means 33 such as a chain and a sprocket.

The switch 40 is, for example, a switch having a well-known structure disclosed in Japanese Utility Model Laid-Open No. 01-118084, a DC or AC motor, and a brake mechanism that restrains the rotation of the motor or releases the restrained state. Etc.
According to this switch 40, when the brake mechanism is released, the output shaft of the electric motor becomes rotatable, and the winding shaft 32 is also rotatable via the power transmission means 33. Therefore, the opening / closing body 10 starts the closing operation by its own weight.
In addition, as another example of the opening / closing device 40, it is possible to adopt a mode in which the electric motor is not provided. In the case of this aspect, the opening / closing body 10 may be closed by its own weight by releasing the brake mechanism, and the opening / closing body 10 after closing may be manually opened as necessary.

Next, the characteristic operation and effect of the switchgear 1 having the above-described configuration will be described in detail (see FIG. 2).
First, in a normal state without a disaster prevention signal, the opening / closing body 10 is stationary in a substantially fully opened state wound around the winding shaft 32.
And in the state which the control part which is not shown in figure received the disaster prevention signal, the winding mechanism 32 will be in the state which can rotate freely by the releasing mechanism of the brake mechanism (not shown) of the opening / closing machine 40.
Therefore, the opening / closing body 10 is drawn out from the take-up shaft 32 by its own weight and starts a closing operation.

During the closing operation of the opening / closing body 10, the locking member 12 is positioned so as not to contact the concavo-convex portion 21 in the guide rail 20 as shown in FIG.
More specifically, the weight of the seat plate member 13 maintains the front and back surfaces of the swinging main body 12a having a parallelogram-shaped cross section in a substantially vertical shape substantially parallel to the inner wall surface of the guide rail 20, and the roller. The member 12b is maintained in a state of being separated from the uneven portion 21.

When the closing direction end (more specifically, the seat plate member 13) of the opening / closing body 10 during the closing operation comes into contact with the obstacle X, as shown in FIG. In contrast, the seat plate member 13 moves in the opening direction.
Therefore, the swinging main body portion 12a of the locking member 12 swings in the opening / closing body thickness direction and is inclined as shown in the figure, and the roller member 12b of the locking member 12 is moved into the concave portion 21a of the uneven portion 21. And is locked by the convex portion 21b.

At substantially the same time as the locking, the corner portion 12a1 that is the opposite of the portion having the roller member 12b on the cross section of the swinging main body portion 12a abuts against the wall surface 20a that faces the uneven portion 21 in the guide rail 20. .
Therefore, the locked state of the roller member 12b and the convex portion 21b is maintained, and the opening / closing body 10 stops the closing operation.

In the stop state shown in FIG. 2B, when the obstacle X is removed, the roller member 12b rolls off the inclined surface at the upper end of the convex portion 21b so as to come out of the concave portion 21a, and the locking member. 12 returns to the state shown in FIG.
Therefore, the closing operation of the opening / closing body 10 is resumed.

  In addition, according to the said embodiment, in order to make engagement / disengagement of the locking member 12 and the uneven | corrugated | grooved part 21 favorable, it was set as the structure which the locking member 12 has the roller member 12b. The member 12b may be omitted, and the corner portion at the lowermost end of the swinging main body portion 12a may be directly fitted to the uneven portion 21.

  Moreover, according to the said embodiment, it was set as the structure which engages / disengages the locking member 12 with respect to the guide rail 20 in the both sides of the opening-and-closing body width direction. It is also possible to adopt a configuration that engages / disengages with respect to the guide rail 20 only on one side.

  Next, another specific aspect of the switchgear according to the present invention will be described. In addition, in the aspect shown below, about the structure substantially the same as the said switchgear 1, the code | symbol in the said switchgear 1 is used as it is, and the detailed description which overlaps is abbreviate | omitted.

In the aspect shown in FIG. 3, a seat plate member 15 is connected to the lowermost slat 11 a constituting the opening / closing body 11 via a connection member 14, and the swing member 16 and the locking member are connected to the connection member 14. 17 is supported.
Further, on the inner surface of the guide rail (not shown), an uneven portion 21 ′ having an indented concave portion 21 a ′ and an extended corner-shaped convex portion 21 b ′ is fixed.
The swinging main body 16a of the connecting member 14, the seat plate member 15 and the swinging member 16 is located between the guide rails 20 and 20 outside the guide rail 20 (in other words, on both sides in the opening / closing body width direction (left and right in FIG. 1)). ).

The connecting member 14 has a substantially concave shape with a lower opening, supports the swinging member 16 on one of the inner surfaces facing the opening / closing body thickness direction (left-right direction in FIG. 3), and the other side. A receiving portion 14a projects from the inner surface so as to receive the tip end side of the swinging member 16 when swinging upward.
The swing member 16 is fixed to the swing main body portion 16a pivotally supported on the inner wall surface of the connecting member 14 and the end of the swing main body portion 16a in the opening / closing body width direction so as to be positioned in the guide rail 20. It consists of the contact part 16b.

The oscillating main body 16a is provided over substantially the entire length in the opening / closing body width direction so as to be in contact with the movable seat plate 15 at any position in the opening / closing body width direction.
The abutting portion 16b has a convex curved surface as a surface to be brought into contact with the locking member 17, and is formed in a substantially columnar shape according to a preferred example illustrated.

Further, the locking member 17 is pivotally supported on the swinging body part 17a pivotally supported on the end part side of the connecting member 14 so as to be positioned in the guide rail 20, and on the distal end side of the swinging body part 17a. It consists of a roller member 17b.
The swinging main body portion 17a is supported so as to swing in the opening / closing body thickness direction, and its tip side is directed downward by its own weight.
The roller member 17b is rotatably supported on the distal end side of the swinging main body portion 17a so that the rotation shaft is directed in the opening / closing body width direction, and its outer peripheral surface is supported by the contact portion 16b of the swinging member 16. It is in contact. The abutting portion 16b is disposed so as to be abutted by a surface located on the anti-oscillation side of the locking member 17 rather than directly below the roller member 17b.

  The seat plate member 15 is a member that protrudes downward from the connection member 14 over substantially the entire length in the opening / closing body width direction, and is connected to the connection member 14 so as to freely slide in a predetermined amount in the opening / closing body opening / closing direction. At the same time, the swinging member 16 is arranged to be pressed and swung from below.

Thus, according to the above configuration, during the closing operation of the opening / closing body 10, as shown in FIG. 3A, the seat plate member 15 is maintained in a state of being separated downward from the connection member 14 by its own weight. The
During the closing operation, when the closing direction end of the opening / closing body 10 (specifically, the seat plate member 15) contacts the obstacle X, the seat plate member 15 moves upward relative to the connection member 14. The sliding member 16 is pressed by the seat plate member 15 to swing the tip end side upward, and the roller member 17b of the locking member 17 is pressed against the contact portion 16b of the swinging member 16. The locking member 17 swings in the opening / closing body thickness direction.

Therefore, as shown in FIG. 3 (b), the locking member 17 fits the roller member 17b into the concave portion 21a ′ of the concave and convex portion 21 ′ and locks the roller member 17b to the upper inclined surface 21b1 ′ of the convex portion 21b ′. .
If this locking state is described in more detail, the roller member 17b of the locking member 17 contacts the upper inclined surface 21b1 ′ of the convex portion 21b ′ while being pressed by the contact portion 16b of the swinging member 16. The locked state between the locking member 17 and the uneven portion 21 ′ is maintained.
Therefore, the closing operation of the opening / closing body 10 stops.

When the obstacle X is removed, the seat plate member 15 slides downward relative to the connection member 14, and the tip end side of the swing member 16 swings downward along with the slide.
Therefore, the locking member 17 does not receive the pressing force from the swinging member 16, swings downward while rolling the roller member 17 b on the upper inclined surface 21 b 1 ′ of the convex portion 21 b ′, and is detached from the uneven portion 21. .

In addition, as a structure added to the aspect of FIG. 3, the front end side of the contact part 16b and the front end side of the rocking | swiveling main-body part 17a do not prevent each rocking | fluctuation of the contact part 16b and the rocking | swiveling main body part 17a. In this way, the connecting members may be used for connection. The connecting member is preferably a flexible member such as a string-like member or a belt-like member, but can also have a structure that flexibly supports a member having rigidity such as a rod-like member or a plate-like member. .
According to this configuration, when the obstacle X is removed, the distal end side of the swinging main body portion 17a is pulled downward by the swinging member 16, so that the releasing operation can be performed satisfactorily.

  Further, according to the embodiment shown in FIG. 3, the locking member 17 is configured to be supported with the roller member 17b on the tip side thereof facing downward. As another example, as shown in FIG. It is also possible to adopt a configuration in which the stop member 17 ′ is supported with the roller member 17b ′ on the tip side facing upward.

That is, in the embodiment shown in FIG. 4, the locking member 17 ′ includes a swinging main body portion 17 a ′ pivotally supported on the end side of the connecting member 14 so as to be positioned in the guide rail 20, and the swinging main body portion. The roller member 17b 'is pivotally supported on the tip end side of 17a'.
The swinging main body portion 17a ′ is supported on the lower side of the connecting member 14 via a bracket (not shown) so that the tip end side swings in the opening / closing body thickness direction.
The roller member 17b ′ is rotatably supported on the upper end side of the swinging main body portion 17a ′ so that the rotating shaft is directed in the opening / closing body width direction. A portion on the anti-oscillation direction side of the locking member 17 ′ in the body thickness direction (lower left side portion in the drawing) is brought into contact with the substantially cylindrical contact portion 16 b of the oscillation member 16.
The outer diameter of the contact portion 16b is appropriately set so that the locking member 17 described later can swing smoothly.

Further, on the inner surface of the guide rail (not shown), a concavo-convex portion 21 ′ having an indented concave portion 21 a ′ and a protruding corner-shaped convex portion 21 b ′ is fixed in substantially the same manner as shown in FIG. 3.
3, the connecting body 14, the seat plate member 15, and the swinging body 16a of the swinging member 16 are outside the guide rail 20 (in other words, both sides in the opening / closing body width direction (in FIG. 1). Between the left and right guide rails 20, 20).

Thus, according to the embodiment shown in FIG. 4, during the closing operation of the opening / closing body 10, as shown in FIG. 4 (a), the seat plate member 15 is spaced downward from the connection member 14 by its own weight. Maintained.
During the closing operation, when the closing direction end of the opening / closing body 10 (specifically, the seat plate member 15) contacts the obstacle X, the seat plate member 15 moves upward relative to the connection member 14. The sliding member 16 is pressed by the seat plate member 15 to swing the tip side upward, and the roller member 17b ′ of the locking member 17 ′ is brought into sliding contact with the contact portion 16b of the swinging member 16. While being pressed, the locking member 17 'swings in the opening / closing body thickness direction.

Therefore, as shown in FIG. 4B, the locking member 17 ′ fits the roller member 17b ′ into the concave portion 21a ′ of the concavo-convex portion 21 ′ and engages with the upper inclined surface 21b1 ′ of the convex portion 21b ′. Stop.
If this locking state is described in more detail, the roller member 17b ′ of the locking member 17 ′ contacts the upper inclined surface 21b1 ′ of the convex portion 21b ′ while being pressed by the contact portion 16b of the swinging member 16. Thus, the locking state between the locking member 17 ′ and the uneven portion 21 ′ is maintained.
Therefore, the closing operation of the opening / closing body 10 stops.

When the obstacle X is removed, the seat plate member 15 slides downward relative to the connection member 14, and the tip end side of the swing member 16 swings downward along with the slide.
Therefore, the locking member 17 ′ does not receive the pressing force from the swing member 16, and swings in the direction away from the uneven portion 21 ′ while rolling the roller member 17b ′ to the upper inclined surface 21b1 ′ of the convex portion 21b ′. To move away from the concave-convex portion 21 ′.

Further, the embodiment shown in FIG. 5 has a configuration in which the engaging member 12 is replaced with the engaging member 18 and two uneven portions 21 are provided in the guide rail 20 in contrast to the embodiment shown in FIGS. 1 and 2. .
The locking member 18 includes a swinging body portion 18a provided between the opening / closing body main body 11 and the seat plate member 13 over substantially the entire length in the width direction of the opening / closing body 10, and two lower end sides of the swinging body portion 18a. It consists of roller members 18b and 18b.
According to the illustrated example, the swinging main body portion 18a is formed in a substantially rectangular cross section, but may have other cross sectional shapes. In this oscillating main body 18 a, corner portions 18 a 1 that are diagonal to the locations having the respective roller members 18 b are formed so as to fit into the concave portions 21 a of the concave and convex portions 21.
The roller member 18b is the same member as the roller member 12b described above, and two are provided on the lower end side of the swinging main body portion 18a so as to protrude from both end portions in the opening / closing body thickness direction.
Further, the uneven portions 21 are respectively provided on both side wall portions in the opening / closing body thickness direction in the guide rail 20, and according to the illustrated example, when the roller member 18b is locked to one uneven portion 21, The height direction positions of one uneven portion 21 and the other uneven portion 21 are shifted so that the corner portion 18a1 fits into the recessed portion 21a of the other uneven portion 21.

Thus, according to the embodiment shown in FIG. 5, when the opening / closing body 10 in the closing operation comes into contact with the obstacle X, the locking member 18 swings in the opening / closing body thickness direction, and the roller member 18b is moved in one direction. The concave portion 21a of the concave and convex portion 21 is engaged with the corner portion 18a1 located on the diagonal line of the roller member 18b and the concave portion 21a of the other concave and convex portion 21 is engaged. Therefore, the closing operation of the opening / closing body 10 can be stopped.
In addition, even if the swinging direction of the locking member 18 is the reverse direction (right direction in FIG. 5), the reverse (right side in FIG. 5) roller member 18b is the other (right side in FIG. 5). To the concave-convex portion 21.
That is, even when the swinging direction of the locking member 18 varies depending on the shape of the obstacle X and the contact angle, the locking member 18 is locked to any of the uneven portions 21 to close the opening / closing body 10. Can be stopped.
Further, when the obstacle X is removed, the locking member 18 is detached from the uneven portion 21 in substantially the same manner as shown in FIG. 2 described above, and the closing operation of the opening / closing body 10 can be resumed. .

1 to 5, the angle of the upper inclined surface 21b1 (or 21b1 ′) of the uneven portion 21 (or 21b ′) is determined by the locking member 12 (or 17, 17 ′, 18 as described above). ) Is set as appropriate so as to facilitate the disengagement operation.
That is, if the slope of the upper inclined surface 21b1 (or 21b1 ′) is made relatively small (in other words, close to the horizontal), the locking member 12 (or 17, 17 ′, 18) may be difficult to disengage. If the slope of the upper inclined surface 21b1 (or 21b1 ′) is relatively large (in other words, close to vertical), the locking member 12 (or 17, 17 ′, 18) can be easily detached. it can.

1 to 5 may be provided only on one end side of the opening / closing body 10 in the width direction, but preferably provided on both end sides.
Moreover, you may make it comprise the obstacle detection latching structure of a different aspect in the one end side of the width direction in the opening / closing body 10, and another end side.

  Moreover, in the said embodiment, when the opening / closing body 10 in closing operation contact | abuts to the obstruction X, it is trying to stop the closing operation of the opening / closing body 10 mechanically, but as another example, A contact-type or non-contact-type switch is provided on the locking member 12 or the connection member 14, the switch is operated by raising the movable seat 13 (or 15), and the obstacle X is sensed according to the output signal of the switch. You may make it equip with the apparatus of an electric control system, such as performing control operation.

Moreover, in the said embodiment, when providing the several uneven | corrugated | grooved part 21 by providing the above obstacle detection locking structures on both sides of the width direction of the opening / closing body 10, or as shown in FIG. When the plurality of uneven portions 21 are provided in the guide rail 20, the height direction positions of the plurality of uneven portions 21 may be shifted or the same. Furthermore, the pitch between the convex portions 21b of the plurality of concave and convex portions 21 may be different or the same.
As described above, when the positions of the plurality of concave and convex portions 21 are shifted in the height direction or the pitch between the convex portions 21b is shifted, the opening / closing body 10 is locked to the guide rail 20 with a finer pitch. Can do.

In the above embodiment, for convenience of explanation, the pitch of the convex portions in the concavo-convex portion 21 is shown to be larger, but this pitch is preferably set shorter than the stroke length of the seat plate member 15.
Further, the size (outer diameter) of the roller member 12b (17b, 17b ′, or 18b) serving as the locking portion (contacting portion) of the locking member 12 (17, 17 ′, or 18) is the recess 21a ( Alternatively, it is appropriately set according to the size of 21′a).

It is a front view which shows an example of the switchgear concerning this invention. It is principal part sectional drawing which shows the characteristic effect | action of the switchgear, (a) shows the state during closing operation, (b) is the inside of a guide rail in which the opening / closing body in closing operation contact | abuts an obstruction. The state locked to the uneven part is shown. It is principal part sectional drawing which shows a characteristic effect | action about the other example of the switchgear concerning this invention, (a) shows the state in closing operation, (b) shows the opening-closing body in closing operation hit | indicates an obstruction. The state which contact | connected and latched to the uneven | corrugated | grooved part in a guide rail is shown. In addition, illustration of a guide rail is abbreviate | omitted in this figure. It is principal part sectional drawing which shows the characteristic effect | action about the other example of the switchgear concerning this invention, (a) shows the state during closing operation, (b) shows the opening-closing body in closing operation hit | indicates an obstruction. The state which contact | connected and latched to the uneven | corrugated | grooved part in a guide rail is shown. In addition, illustration of a guide rail is abbreviate | omitted in this figure. It is principal part sectional drawing which shows a characteristic effect | action about the other example of the switchgear concerning this invention, (a) shows the state in closing operation, (b) shows the opening-closing body in closing operation hit | indicates an obstruction. The state which contact | connected and latched to the uneven | corrugated | grooved part in a guide rail is shown. In addition, illustration of a guide rail is abbreviate | omitted in this figure.

Explanation of symbols

1: Opening / closing device 10: Opening / closing body 11: Opening / closing body main body 12, 17, 17 ': Locking member 12a, 17a, 17a': Oscillating main body 12b, 17b, 17b ': Roller member 13: Seat plate member 20: Guide rails 21, 21 ': Concavity and convexity X: Obstacle

Claims (5)

An opening / closing body comprising: an opening / closing body main body capable of being closed while sliding; and a movable seat plate connected to an end of the opening / closing body main body in a closing direction and movable in an opening direction relative to the opening / closing body main body. In the opening and closing device configured, the end of the opening and closing body in the width direction is surrounded by a guide rail and guided in the closing direction,
An opening / closing device, wherein the opening / closing body is provided with a locking member that moves in the opening / closing body thickness direction in conjunction with the movement of the movable seat plate in the opening direction and is locked to the guide rail.   The locking member is connected such that the opening direction side swings in the opening / closing body thickness direction with respect to the opening / closing body body, and the closing direction side swings in the opening / closing body thickness direction with respect to the movable seat plate. 2. The member according to claim 1, wherein the movable seat plate is moved in the opening direction relative to the opening / closing body main body and is rocked in the opening / closing body thickness direction to be locked to the guide rail. Switchgear. In the opening / closing body main body, a swinging member that is pressed and swings by the movable seat plate when moved in the opening direction is provided across the opening / closing body width direction,
2. The opening / closing device according to claim 1, wherein the locking member is provided so as to be pressed by the swing member and swing in the opening / closing body thickness direction to be locked to the guide rail.   The opening / closing device according to any one of claims 1 to 3, wherein an uneven portion is provided in the guide rail so as to be locked to the locking member when moved in the opening / closing body thickness direction. .   The opening / closing apparatus according to claim 4, wherein the locking member includes a roller member so as to be engaged with and disengaged from the concave portion of the uneven portion.

Images