JPH084550Y2 - Door opening and closing device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device provided in various storage devices.

[0002]

2. Description of the Related Art Conventionally, the opening direction of a door provided rotatably in a storage device for various articles has been limited to one direction, for example, right opening or left opening. However, depending on the location of the storage device, there are cases where it is difficult to carry out the work when loading or unloading an object to be stored in or out of the storage device. Therefore, various opening / closing devices that can be opened from any of the left and right sides have been proposed in Japanese Utility Model Laid-Open No. 61-98173, but all of them have a problem that the structure is complicated and the cost is increased. .

[0003]

SUMMARY OF THE INVENTION The present invention solves such a problem, and an object thereof is to provide a door opening / closing device which is simple in structure and inexpensive and which can open both sides.

[0004]

In order to solve the above problems, the first means of the present invention is to provide rotary pivot shafts vertically oriented at the upper and lower ends of the left and right end portions of the front surface of the door mounting body, respectively.
A door-side member fixed to each of the upper and lower portions of the door is provided, and a groove is formed in the door-side member to open the rear side to fit the rotation pivot shaft, and slides left and right with respect to the door-side member. A free slide plate is provided, and on this slide plate, a groove portion that extends in the left-right direction and opens at a position near the side end of the slide plate toward the rear side and a rotation pivot shaft on the open side when the door is opened By abutting against the rear part of the sliding plate, the slide plate is moved to the rotation pivot shaft side serving as a fulcrum to allow the door side member to be disengaged from the opening side rotation pivot shaft and the fulcrum side rotation pivot shaft to the groove portion. The slide plate is fulcrum by abutting on the rear inclined surface that guides it to the inner part and prevents the door side member from coming off from the groove on the fulcrum side, and the front part of the rotary pivot shaft that is closed when the door is closed. Close the door by moving it away from the rotating pivot Forming a front inclined surface for holding the state
And is rotatably supported in a substantially horizontal plane about the vertical axis,
When the door is opened, it is rotated and the slide plate touches the regulation surface.
Prohibits the sliding motion of the slide plate by touching
A regulating member is provided .

A second means of the present invention is that a rotary pivot shaft is provided on the door side, and a slide plate having a shape symmetrical to the above is slidably provided on a door attachment body side member fixed to the door attachment body. It is a thing.

[0006]

[0007]

With this configuration, it is possible to provide at low cost an opening / closing device for a double-opening type door, which is simple in construction, can reliably hold the closed state, and can be opened / closed smoothly.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, an embodiment of the present invention will be described with reference to FIGS.
The basic configuration of will be described. 1 to 8, 1
Is a box for storing food items in a sealed state.
The front opening 2 is provided with a door 4 to which a transparent plate 3 is attached. The door 4 is mounted on four box-side brackets 5 that are screwed to the upper and lower end portions of the front surface of the box 1, and is provided on a rotary pivot shaft 5a extending upward or downward.
By connecting two door-side members 6 having U-shaped cross-sections screwed to the lower surface and the upper surface of the door 4 and a slide plate 7 slidably inserted in the door-side members 6 in the lateral direction, It is supported by the box 1. That is, the support device 10 configured by connecting the door side member 6 and the slide plate 7 to the rotary pivot shafts 5a of the left and right box side brackets 5 is arranged vertically, and the door 4 can be opened to both sides of the box 1. Support.

More specifically, in the support device 10, the box-side bracket 5 is fixed to the upper and lower end portions of the front surface of the box 1 with screws 11 and extends horizontally.
b and a rotary pivot shaft 5a extending upward or downward from the horizontal plane portion 5b, the rotary pivot shaft 5a is fixed downward in the upper box body side bracket 5, and the lower box body side bracket 5 is fixed. In, the rotary pivot 5a is fixed upward.

A door-side member 6 formed by bending a metal plate into a U-shape is provided between the left and right box-side brackets 5, and the door-side member 6 is an upper surface and a lower surface of the door 4. A mounting portion 13 fixed to the box 12 with a screw 12, a vertical portion 14 extending upward or downward from a front edge of the mounting portion 13 toward the box-side bracket 5, and a rear portion extending from the vertical portion 14 on both sides thereof. It is composed of a supported portion 16 having a groove 15 into which the rotary pivot shaft 5a is fitted.
At the lower portion of the box body 1, the door 4 is supported in a state where the supported portion 16 of the door side member 6 is in contact with the horizontal plane portion 5b of the box body side bracket 5. The groove 15 of the door-side member 6 extends toward the rear side and has a rear end opened rearward.

The slide plate 7 is made of resin and is inserted between the mounting portion 13 and the supported portion 16 of the door side member 6. Then, a guide pin 17 as a vertical axis fixed vertically penetrating the door side member 6 is inserted into an elongated hole 18 extending left and right in the slide plate 7,
Is configured to be slidable to the left and right with respect to the door side member 6 while being guided by the guide pin 17 and the elongated hole 18. This slide plate 7 is notched on the rear side of both side ends, and is formed with a groove portion 19 which extends left and right and engages and disengages with the rotary pivot shaft 5a of the box side bracket 5. The portion extends obliquely rearward and is opened in the cutout portion 20. Then, as shown in FIG. 5, the slide plate 7 is brought into contact with the front portion of the rotary pivot shaft 5a on the side where the door 4 is closed when the door 4 is closed, at the place where the groove 19 and the notch 20 communicate with each other. A front inclined surface 21 for moving 7 in the a direction and a rear inclined surface 22 for moving the slide plate 7 in the b direction by contacting the rotary pivot shaft 5a on the opening side when the door 4 is opened. Has been formed.

Reference numeral 23 in FIG. 1 is a packing member that is attached to the inner surface of the door 4 to seal between the door 4 and the box body 1, and 24 is for avoiding contact between the screw 12 and the slide plate 7. It is a long hole.

The door 4 is attached to the box body 1 by using two sets of the supporting devices 10 each having the box body side bracket 5, the door side member 6 and the slide plate 7 having the above-mentioned structure.
Is a double door type that can be opened from either left or right. 4 to 8 show the states of the operation.

That is, when the door 4 in the closed state as shown in FIG. 4 is opened with the right rotary pivot 5a as a fulcrum,
By pulling the left side of the door 4 toward you, the slide plate 7
The rear inclined surface 22 on the left side contacts the rear portion of the rotary pivot shaft 5a, and the slide plate 7 slides along the rear inclined surface 22 in the b direction (rightward direction), which is the fulcrum side.

As a result, as shown in FIG. 6, the rotary pivot shaft 5a on the fulcrum side (right side) is fitted to the inner side of the groove portion 19 of the slide plate 7 to form the rear surface side of the groove portion 19 of the slide plate 7. The portion covers the right side groove 15 of the door side member 6 from above, and prevents the door side member 6 from coming off from the right side rotation pivot shaft 5a which is the fulcrum side. At the same time,
Since the cutout portion 20 at this position on the open side end of the slide plate 7 overlaps the groove 15 of the door side member 6, the open side (left side) ends of the door side member 6 and the slide plate 7 are pivotally supported. It can be easily separated from the shaft 5a. Therefore, the door 4 can be easily and surely rotated about the rotation pivot shaft 5a on the right side.

When the door 4 opened as described above is closed by using the right rotation pivot shaft 5a as a fulcrum, the left side portion of the door 4 is pressed against the box body 1 side, and as shown in FIG. The front inclined surface 21 on the left side of 7 abuts on the front portion of the rotary pivot shaft 5a, and the slide plate 7 slides in the a direction (left direction) along the front inclined surface 21.

As a result, as shown in FIG. 4, the rotary pivot shafts 5a on both sides are provided with the notches 2 in the groove 19 of the slide plate 7.
The slide plate 7 moved slightly to the left until it was located in the vicinity of 0, and the portion of the slide plate 7 forming the rear surface side of the groove portion 19 covered the groove 15 of the door side member 6 from about half. In this state, the rear inclined surfaces 22 on both sides of the slide plate 7 engage with the respective rotary pivot shafts 5a, and the closed state of the door 4 is maintained.

Further, the door 4 in a closed state as shown in FIG.
When opening with the left side rotation pivot 5a as the fulcrum, open the door 4
By pulling the right side of the door toward you, the door 4 is opened as shown in FIG. 8 by the same operation as described above.

Here, the door side member 6 is configured to be slightly longer in the longitudinal direction than the slide plate 7, and even when the slide plate 7 slides, the end portion of the slide plate 7 projects from the side portion of the door side member 6. This prevents the support device 10 from malfunctioning.

[0020] FIGS. 9 17 shows the actual施例of the present invention, to those of the basic configuration with the same function of the above embodiment will be omitted the description thereof are denoted by the same reference numerals. In this embodiment, the door-side member 6 is configured by fixing the door-side sub-members 6B to both ends of the door-side main member 6A extending in the left-right direction. Further, the plate-shaped regulating member 31 is arranged in a state of being sandwiched from above and below by each door side sub member 6B and both ends of the slide plate 7. The restricting member 31 is rotatably supported about the guide pin 17 in a substantially horizontal plane, and the protruding portion 31a protruding downward is the recess 33 of the door side sub member 6B (see FIG. 9).
Is abutted against one end side of the compression spring 32 disposed in the above, and the pressing force of the compression spring 32 always urges the regulating member 31 toward the rotation side in the c direction.

As shown in FIGS. 9 and 13, the regulating member 31 has a hole portion 31b into which the guide pin 17 is fitted,
A front edge portion 31c that abuts the vertical portion 14 of the door side member 6 when the door 4 is closed, and a rotary pivot shaft 5a that is formed on the front side of one end and is closed when the door 4 is closed. First claw portion 3 which comes into contact with the front side of the and rotates the regulating member 31 in the anti-c direction
1d, which is formed on the rear side of the one end, comes into contact with the rear side of the rotation pivot shaft 5a on the closed side when the door 4 is closed, and when the door 4 is opened, the restricting member 31 assists in the c direction. The second claw portion 31e for rotating the door 4 and the door 4 formed on the rear side of the other end.
The projection control surface 31f close to the end surface 34a of the stepped projection 34 formed on the slide plate 7, the projection control surface 31f on the front side of the other end, and the first claw when the lever is opened. Part 31
and a curved surface portion 31g formed between the curved surface portion 31d and d.

Reference numeral 35 denotes a cover portion formed at the end of the door side sub member 6B, which covers the side surface of the door side main member 6A so that the slide plate 7 and the regulating member 31 are not exposed to the outside. Further, it is schematically shown in FIG. 10 (in order to clarify the arrangement state of the opening / closing device, the box-side bracket 5 and the door-side main member 6A
In this embodiment, the box-side bracket 5 has a substantially L-shaped cross section, and the door-side member 6 is provided on the back surface of the door 4 as shown in FIG. It is arranged so that the opening / closing device is not exposed to the front side and the appearance is improved.

In this structure, when the door 4 is closed, the front edge portion 31c of the regulating member 31 comes into contact with the vertical portion 14 of the door-side member 6 as shown in FIGS. The rotary pivot 5a is fitted between the first claw portion 31d and the second claw portion 31e of the member 31, and the regulating member 3
The stepped ridge portion 33 of the slide plate 7 is slightly separated from the curved surface portion 31g. In addition, the protruding portion restricting surface 31 f of the restricting member 31 is located behind the stepped protruding portion 34.

From this state, the door 4 is moved to the right rotary pivot shaft 5a.
When the door 4 is opened to the fulcrum, by pulling the left side portion of the door 4 toward the front, the left rear inclined surface 22 of the slide plate 7 abuts on the rear portion of the rotary pivot shaft 5a and slides along the rear inclined surface 22. The plate 7 slides in the b direction (rightward), which is the fulcrum side. At the same time, the second claw portion 31e of the left side regulating member 31 that is in contact with the rear portion of the rotary pivot shaft 5a is pressed diagonally rearward and the regulating member 31 rotates in the c direction. The regulating member 31 rotated in the c direction is the compression spring 3
The posture is maintained by the biasing force of 2.

As a result, as shown in FIGS. 15 and 16,
The rotary pivot shaft 5a on the fulcrum side (right side) is fitted to the inner side of the groove portion 19 of the slide plate 7, and the groove portion 19 of the slide plate 7 is inserted.
The groove 1 on the right side of the door side member 6 by the portion forming the rear surface side
5 is covered from above, and the door-side member 6 is prevented from coming off from the right rotation pivot shaft 5a on the fulcrum side. Moreover, since the protruding portion restricting surface 31f comes close to the left end surface 34a of the stepped protruding portion 34 by the rotation of the opening side (left side) restricting member 31 in the c direction, the slide plate 7 moves in the opposite b direction. Even if an external force acts in the direction indicated by
The left end face 34a of the No. 4 abuts on the protrusion regulation surface 31f of the left regulation member 31, and the movement of the slide plate 7 in the opposite b direction is regulated. This further reliably prevents the door-side member 6 from being disengaged from the rotation pivot shaft 5a on the right side, which is the fulcrum side.

At the same time, at the open end of the slide plate 7, the notch 20 at this position is formed in the groove 15 of the door side member 6.
Since the door side member 6 and the slide plate 7 have open ends (left side), they can be easily separated from the rotary pivot shaft 5a. Therefore, the door 4 can be easily rotated while being reliably supported with the right rotation pivot shaft 5a as a fulcrum.

When the door 4 opened as described above is closed with the right rotation pivot shaft 5a as a fulcrum, the left side portion of the door 4 is pressed against the box body 1 side. As a result, the first claw portion 31d of the left regulating member 31 contacts the front portion of the left rotary pivot shaft 5a, and the regulating member 31 rotates in the anti-c direction against the biasing force of the compression spring 32. To do. Therefore, the protruding portion restricting surface 31f of the restricting member 31 has the left end surface 34a of the stepped protruding portion 34.
Move further rearward to slide plate 7 in direction a (leftward)
It is in a state where the slide to is allowed. Then, the left front inclined surface 21 of the slide plate 7 contacts the front portion of the rotary pivot shaft 5a, and the slide plate 7 slides along the front inclined surface 21 in the a direction (left direction).

As a result, as shown in FIG. 14, the slide plate 7 slightly moves to the left until the rotary pivot shafts 5a on both sides are located in the groove 19 of the slide plate 7 in the vicinity of the notch 20. With the portion of the slide plate 7 that forms the rear surface side of the groove portion 19 covering the groove 15 of the door side member 6 from above approximately half, the rear inclined surfaces 22 on both sides of the slide plate 7 have their respective rotary pivot shafts 5a. And the closed state of the door 4 is maintained.

When the door 4 in the closed state as shown in FIG. 14 is opened with the left rotary pivot 5a as a fulcrum, the same operation as described above is performed by pulling the right side of the door 4 toward you. Thereby, the door 4 is opened as shown in FIG.

As described above, since the restricting member 31 prohibits the slide plate 7 from sliding when the door 4 is opened, even if an external force acts on the slide plate 7, the door 4 rotates on the supporting side. Detachment from the pivot 5a is reliably prevented.

As shown in FIG. 18, the regulating member 31
It is also possible to rotate the restriction member 31 only by the engagement relationship between the first pawl portion 31d and the second pawl portion 31e and the rotation pivot shaft 5a without providing the compression spring 32 for urging the regulating member 31.

Further, as shown in FIG. 19, the box side bracket 5 is formed into a flat plate shape, and the door side member 6 is arranged inside the door 4, or as shown in FIG. The bottom surface portion 1a may be extended forward and the switchgear may be disposed on the bottom surface portion 1a.

1 to 8 show the case where the horizontal plane portion 5b of the box-side bracket 5 supports the weight of the door 4, but as shown in FIGS.
The weight of the door 4 may be supported by the upper surface of a.

Further, in the above embodiment, the case 1 having the opening as the door mounting body has been described, but the door mounting body may not have the opening. Further, each member provided on the door mounting body side and each member provided on the door side may be reversed. That is, the same applies to the case where the rotary pivot shaft is provided on the door side and the door mounting body side member fixed to the door mounting body is formed with the groove having the reverse shape to the above and the slide plate having the reverse shape to the above is provided. Various operational effects can be obtained.

[0035]

As described above, according to the present invention, it is possible to provide at low cost an opening / closing device for a double-opening type door which is simple in construction, can reliably hold the closed state, and can be opened and closed smoothly.

Further, by providing the regulating member for prohibiting the sliding movement of the slide plate when the door is opened, the sliding movement is prevented even if an external force acts on the sliding plate. Can be reliably prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a switchgear showing a basic configuration of an embodiment of the present invention.

FIG. 2 is an overall front view of the opening / closing device.

FIG. 3 is a front sectional view of the opening / closing device.

FIG. 4 is a main-portion plan sectional view taken along the line AA of FIG.

FIG. 5 is an enlarged plan sectional view of an essential part of the opening / closing device.

FIG. 6 is a plan cross-sectional view when the left side of the door of the opening / closing device is slightly opened.

FIG. 7 is a plan cross-sectional view when the left side of the door of the opening / closing device is opened.

FIG. 8 is a plan cross-sectional view when the right side of the door of the opening / closing device is opened.

FIG. 9 is an exploded perspective view of a switchgear according to an embodiment of the present invention.

FIG. 10 is a schematic side view of an essential part of the opening / closing device.

FIG. 11 is a bottom view of the opening / closing device.

FIG. 12 is a rear view seen from the line BB of FIG.

FIG. 13 is a plan cross-sectional view of a main part of the opening / closing device.

14 is a plan sectional view taken along the line CC of FIG.

FIG. 15 is a plan cross-sectional view when the left side of the door of the opening / closing device is slightly opened.

FIG. 16 is a cross-sectional plan view when the left side of the door of the opening / closing device is opened.

FIG. 17 is a plan cross-sectional view when the right side of the door of the opening / closing device is opened.

FIG. 18 is an exploded perspective view of a switchgear according to another embodiment of the present invention.

FIG. 19 is a schematic side view of a main part of a switchgear according to another embodiment of the present invention.

FIG. 20 is a schematic side view of a main part of a switchgear according to another embodiment of the present invention.

[Explanation of symbols]

 1 Box 2 Front Opening 4 Door 5 Box Side Bracket 5a Rotating Pivot 5b Horizontal Plane 6 Door Side Member 6A Door Main Member 6B Door Side Sub Member 7 Slide Plate 10 Support Device 15 Groove 17 Guide Pin (Vertical axis) 19) Groove 20 Notch 21 Front inclined surface 22 Rear inclined surface 31 Control member 31a Projection 31b Hole 31c Front edge 31d First claw 31e Second claw 31f Projection control surface 32 Compression spring 34 Stepped ridge 34a End surface

Claims (2)

[Scope of utility model registration request] 1. A door mounting body is provided with rotation pivot shafts oriented in the vertical direction at the upper and lower ends of the left and right end portions, respectively, and door side members fixed to the upper and lower portions of the door are provided. A rearward opening is formed in the groove into which the rotary pivot shaft is fitted, and a slide plate that is slidable left and right with respect to the door-side member is provided. When the door is opened, the slide plate is moved to the side of the rotary pivot shaft that serves as a fulcrum by abutting the groove portion whose side end is open substantially rearward and the rear part of the rotary pivot shaft on the open side when the door is opened. The door side member is moved to allow the door side member to be disengaged from the opening side rotation pivot shaft, and the fulcrum side rotation pivot shaft is guided to the inner part of the groove to prevent the door side member from being disengaged from the fulcrum side groove. Sloping rear part and front part of the rotary pivot on the side that closes when closing the door It is moved in the direction away from the rotational pivot shaft serving as a fulcrum slide plate to form a front inclined surface for holding the closed state of the door by contacting the the longitudinal axis
When the door is opened, it is rotatably supported in the center in a substantially horizontal plane.
When the slide plate comes into contact with the regulation surface when it is rotated
More restrictive member is installed to prohibit sliding movement of the slide plate.
Only the door of the opening and closing device. 2. A door mounting body side member fixed to each of an upper portion and a lower portion of the door mounting body is provided with rotation pivot shafts which are vertically oriented at upper and lower ends of left and right end portions of a rear surface of the door, respectively.
A front opening is formed in the door mounting body side member to form a groove into which the rotation pivot shaft is fitted, and a slide plate that is slidable left and right with respect to the door mounting body side member is provided. And a portion of the slide plate near the side end of the slide plate is opened substantially forward, and when the door is opened, the slide plate serves as a fulcrum by abutting against the front part of the rotary pivot shaft on the open side. To allow the door mounting body side member to be disengaged from the open side rotation pivot shaft and guide the fulcrum side rotation pivot shaft to the inner part of the groove to support the door mount body side member. The front sloped surface that prevents the slide plate from separating from the groove on the side and the rear part of the rotary pivot that closes when the door is closed will cause the slide plate to move away from the rotary pivot that serves as the fulcrum. Shaped with a rear sloping surface that moves to hold the door closed And, rotating in a substantially horizontal plane about the longitudinal axis
It is movably supported and is rotated when the door is opened to regulate it.
When the slide plate comes into contact with the surface, the slide plate slides.
Door opening / closing device with a regulating member that prohibits id action .