JP2001303833A - Casing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems of interference and frontage dimension which arise when a door having equipment installed on an internal side thereof is opened. SOLUTION: When the degree of opening of an internal door 11 is large, the internal door 11 and an intermediate member 13 are rotated in one body about a first rotating shaft 14. On the other hand, when the degree of opening becomes smaller, a second rotating shaft 15 is positioned and the intermediate member 13 is also positioned, whereby only the internal door 11 is rotated about the second rotating shaft 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing, and relates to an improved door opening / closing structure.

[0002]

2. Description of the Related Art A distribution board and a control board are formed by housing electric equipment in a housing.

FIG. 5 shows the configuration of this housing. As shown in the figure, the housing 1 includes a main body 3 having an opening 2, an outer door 4 provided on the front side of the opening 2, and an inner door 5 provided on the back side. The outer door 4 is rotatably mounted on the front side of the opening 2 via a rotating shaft (not shown).

On the other hand, the inner door 5 is configured as follows. A vertical frame 3 which is integral with the main body 3 and forms the opening 2
The inner door 5 is rotatably provided at a through a rotation shaft 9. The inner door 5 is formed in an L-shape so that the turning shaft 9 is located near the vertical frame portion 3a and the closed portion is located on the back side of the turning shaft 9. Is fixedly provided on the rear side of the vertical frame portion 3a.

[0005]

However, FIG. 5 (b)
In some cases, the device 7 may be mounted inside the inner door 5 as shown in FIG. 4. In such a case, the inner door 5 may not be able to be opened because the device 7 interferes with the door contact portion 6.

On the other hand, as shown in FIG. 6, a long bearing portion 8 is provided from the vertical frame portion 3a toward the rear side, and a bearing portion 8 is provided.
The pivot 9 is disposed on the back side of the inner door 5a, and the inner door 5a is not L-shaped.
Is provided, the inner door 5a and the door rest 6
Do not interfere with each other, but there is a new problem that the opening dimension L when the inner door 5a is opened due to the presence of the device 7 is small.

[0007] Therefore, an object of the present invention is to provide a housing which solves such a problem.

[0008]

According to a first aspect of the present invention, there is provided a housing having an opening in a main body having an accommodation space and a door provided in the opening. An intermediate member is rotatably provided on the main body via one rotation shaft, and is rotatable to the intermediate member via a second rotation shaft fixed to a door (inner door) in a state parallel to the first rotation shaft. When the door is provided and is rotated about the first rotation axis in a direction to close the door and the intermediate member, the movement of the second rotation axis is restricted and the movement is restricted at the specific position (S). 3. A housing according to claim 2, wherein a restraining means for rotatably holding the second rotation shaft at the specific position is provided so that only the door can rotate in the state. In the above, a bearing member is provided at the specific position as the restraining means, and the bearing member is One of the driving shaft and the hollow shaft shape, the other is a shaft shape that can rotate inside the hollow shaft, one has a cutout at one place in the circumferential direction, the other is specified A small width portion that can pass through the cutout portion only at the rotation angle of is formed, and the configuration of the housing according to claim 3 is the configuration according to claim 1 or 2, wherein the width is between the intermediate member and the door. And a door catch is provided.

In the embodiment, the bearing member constituting the restraining means has a hollow shaft shape, while the second rotary shaft has a solid shaft shape. Also, the door catch concave portion may be provided on the door, and the door catch convex portion may be provided on the intermediate member. Furthermore, although shown as a casing used for a switchboard and a control panel, the present invention is not limited to this and can be used for various facilities. Furthermore, the case of a double door is shown,
It may be used in the case of a single door.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a housing according to the present invention will be described. In this embodiment, since a part of the conventional housing is improved, the same reference numerals are given to the same parts as the conventional one, and the description thereof will be omitted. Only different parts will be described.

As shown in FIG. 1 which is a plan sectional view of the housing, the mounting structure of the inner door 11 is improved in the present invention. That is, as shown in FIG. 2, the upper and lower portions of the inner door 11 are attached to the attachment fittings 12 fixed to the top and bottom of the main body 3 via the intermediate members 13, respectively.

Since the mounting structure at the upper and lower portions of the inner door 11 is the same, only the lower portion will be described. Before describing the structure, the operation will be briefly described for easy understanding. When the inner door 11 is fully opened, the inner door 11 exists at the position shown in FIG. 1A, and when the inner door 11 is closed from the state shown in FIG. 1A to the state shown in FIG. 1
3 rotates integrally about the first rotation shaft 14,
The intermediate member 1 from the state (b) to the fully closed state (c)
3 remains fixed, the inner door 1
Only 1 rotates around the second rotation shaft 15.

The mounting member 12 has an L-shape, and one end of an intermediate member 13 is rotatably connected to a horizontal surface via a first rotation shaft 14. The inner door 11 is rotatably attached to the other end of the intermediate member 13 via a second rotating shaft 15 parallel to the first rotating shaft 14. A horizontal portion 11a bent outward is formed on the inner door 11, and the second rotating shaft 15 is fixed to the horizontal portion 11a.

Since the intermediate member 13 is set to rotate together with the inner door 11 from the position (a) to the position (b) in FIG. 1, the intermediate member 13 has a door catch recess 18a.
On the outside of the inner door 11, a door catch projection 18b is attached.

Along with the rotation of the intermediate member 13, the first rotation shaft 14
When the second rotating shaft 15 that has revolved around and moves to the specific position S on the back side of the first rotating shaft 14 restricts the movement of the second rotating shaft 15 and the movement is restricted. In this state, a restraining means 16 is provided that allows the second rotation shaft 15 to rotate by itself and allows only the inner door 11 to rotate.

The structure of the restraining means 16 will be described below. A hollow shaft-shaped bearing member 17 is disposed at the specific position S, and the lower surface thereof is fixed to the main body 3. And FIG.
When the second rotating shaft 15 moves between the state (b) and the state (a) in FIG.
A notch 17a is formed to open rightward in FIG. On the other hand, between the state shown in FIG. 1A and the state shown in FIG.
a, but between the state (b) and the state (c), the second rotating shaft 15 rotates so that it cannot rotate and pass through the notch 17a. Bearing member 17
In the lower portion, which is a portion that enters into the inside, a flat processed portion 15a is formed on each side of the columnar shape, so that a small width portion 15b having a small width dimension W in one circumferential direction is formed.

Next, the operation of such a housing will be described. In a state where the outer door 4 and the inner door 11 are closed, as shown in FIG. 4A, the small width portion 15b of the second rotating shaft 15 enters the bearing member 17, and the state shown in FIG. Has become. That is, even if the inner door 11 is pulled to the right in FIG. 4A, the small width portion 15b does not fall out of the cutout portion 17a of the bearing member 17.

Next, after the outer door 4 is opened, the inner door 11 is opened.
The small width portion 15b rotates 90 ° clockwise together with the inner surface door 11 from the state shown in FIG. 4A to the state shown in FIG. From the state shown in FIG. 3A to the state shown in FIG. 3B, the small width portion 15b cannot pass through the cutout portion 17a, so that the intermediate member 13 does not rotate, and only the inner surface door 11 is provided. Rotates around the second rotation shaft 15. Then, the door catch protrusion 18b is connected to the door catch recess 18a, and the inner door 11 is integrated with the intermediate member 13.

In the state shown in FIG. 4 (b), as shown in FIG. 3 (b), the small width portion 15b can pass through the cutout portion 17a, and when the inner door 11 is further opened, the inner door 11 becomes an intermediate member. 13 and rotates about the first rotation shaft 14 as a unit,
As shown in FIG. 4C, it is in a fully opened state.

When closing the inner door 11, the inner door 11 is rotated counterclockwise in the opposite direction. Then, the inner door 11 and the intermediate member 13 integrated with each other by the door catch 18 rotate around the first rotating shaft 14, and FIG.
As shown in (b), the small width portion 15b enters the bearing member 17 from the notch portion 17a. When the inner door 11 is further rotated in the counterclockwise direction, the door catch protrusion 18b is disengaged from the door catch recess 18a, and only the inner door 11 is rotated about the second rotation shaft 15, and FIG. Return to the state.

Until the inner door 11 is opened from the position (c) to the position (b) in FIG. 1, the inner door 11 rotates about the second rotary shaft 15 so that the device 7 When the door is opened from the position (b) to the position (a), the inner door 11 rotates about the first rotation shaft 14, so that the opening degree is larger than in the case of FIG. The opening size L is large.

[0022]

As can be seen from the above description, according to the housings of the first and second aspects, the intermediate member is rotatably provided via the first rotation shaft, and the second rotation shaft is provided on the intermediate member. When the door is opened, the first half rotates about the second rotation axis, and the second half rotates about the first rotation axis. Therefore, when the door is opened, the device mounted inside the door does not interfere with the main body, and the door can be opened widely, so that the frontage size is large and the space for maintenance can be large.

According to the third aspect of the present invention, since the door catch is provided between the intermediate member and the door, the door can be moved relative to the intermediate member in the second half when the door is opened and in the first half when the door is closed. The doors rotate together without moving, and the movement of the door is stabilized.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a housing according to the present invention.

FIG. 2 is a perspective view showing a main part of the embodiment of the housing according to the present invention.

FIG. 3 is a plan view of a restraining means according to the embodiment of the housing according to the present invention.

FIG. 4 is an operation explanatory view of the embodiment of the housing according to the present invention.

FIG. 5A is a plan view of a conventional housing. (B) is a top view showing the subject of the conventional case.

FIG. 6 is a plan view showing an improvement plan in a conventional housing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Opening part 3 ... Main body 11 ... Inner door 13 ... Intermediate member 14 ... First rotating shaft 15 ... Second rotating shaft 16 ... Restriction means S ... Specific position

Claims (3)

[Claims] An opening is provided in a main body having an accommodation space,
In a housing provided with a door at the opening, an intermediate member is rotatably provided on the main body via a first rotation shaft,
A door is rotatably provided on the intermediate member via a second rotating shaft fixed to the door in a state parallel to the first rotating shaft, and the door is turned around the first rotating shaft in a direction to close the door and the intermediate member. When moved, the second rotating shaft is rotatable at the specific position so that only the door can rotate while the movement of the second rotating shaft is restricted at the specific position and the movement is restricted. A housing provided with restraining means for holding. 2. As the restraining means, a bearing member is provided at the specific position, and one of the bearing member and the second rotating shaft is formed into a hollow shaft shape, and the other is formed inside the hollow shaft. Claims: A rotatable shaft shape, one of which has a notch at one location in the circumferential direction, and the other has a small width portion that can pass through the notch only at a specific rotation angle. The housing according to 1. 3. The housing according to claim 1, wherein a door catch is provided between the intermediate member and the door.