JPH10136514A - Box for board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the coating of a door and enclosure hard to come off by making at least one shaft section and bearing section of a journal section which journals the door control the door before the external surface of the door comes into contact with one side plate of the enclosure when the door is fully opened. SOLUTION: The bearing member 13 of a box for board has a shaft inserting section 14 partially having a notch 14a and a rotation control section 15 which is inserted into a bearing hole 12 and can drop the rotation control projection 24 of a shaft section 23 toward the control section 15 in accordance with the notch 14. In the control section 15, in addition, a rotation control groove 15a which controls the rotating extent of the projection 24 to 90 deg. is formed and controls a door before the external surface of the door comes into contact with one side plate 7 of an enclosure 1. Since the projection 24 of the shaft section 23 which is laterally positioned in the groove 15a while the door is closed moves in the groove 15a and comes into contact with the end face of the groove when the door is opened, the external surface of the door does not come into contact with the side plate of the enclosure. Therefore, the coating of the door and enclosure becomes hard to come off and hard to get rusty.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel box in which a door is freely opened and closed on the inner surface of a box constituting a distribution panel, a control panel and the like.

[0002]

2. Description of the Related Art FIG. 8 shows a box of this type. In this case, the inner surfaces of the side plates 5 and 7 of the box 1 are bent inward and inward to form a recess 8, and the door 2 is pivotally supported in the recess 8 so that it can be opened and closed. The outer surface 2a is substantially flush with the front surface 1a of the box 1. That is,
A bearing hole 30 for supporting the door 2 is formed in two opposing side plates 5 (only one is shown) of the box 1 and a shaft portion is formed in the door 2.
The door 2 is rotatably supported on the box body 1 by forming the shaft 31 and supporting the shaft portion 31 with the bearing hole 30.

[0003] The rotation range of the door 2 is a position (not shown) in which the opening of the box 1 is closed, and as shown in FIG. It is regulated between the position where it comes into contact with the side plate 7.

[0004]

In the above-mentioned panel box, the outer surface of the door comes into contact with one side plate of the box when the door is opened. There was a problem that the coating on one side plate was peeled off and rusted easily.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a board box in which a door or a box body is hardly peeled off and which is hardly rusted.

[0006]

According to a first aspect of the present invention, there is provided a board box, comprising: a box formed in a shape having an opening on one side by a bottom plate and four peripheral side plates;
A door which is openably and closably supported between a pair of opposing side plates on the inner surface of the box at an opening edge of the box and closes the opening of the box; The shaft portion and the bearing portion forming at least one of the three fulcrum points are used as regulating means for regulating the position where the door is fully opened before the position where the outer surface of the door comes into contact with one side plate of the box. .

According to a second aspect of the present invention, there is provided a board box.
A restricting means, a bearing member mounted with a rotation restricting groove of a predetermined angle in a bearing hole formed in a box or a door,
A shaft member attached to a door or a box body and having a rotation restricting projection facing the rotation restricting groove of the bearing member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 2, the board box of the present invention comprises a bottom plate (not shown) and a four-sided side plate.
A box 1 formed into a shape having an opening on one side by 4, 5, 6, 7 and a pair of side plates 4, 5 facing the inner surface of the box 1 at the opening edge of the box 1 so that it can be opened and closed freely. An outer door 2 (door) that is rotatably supported to close the opening of the box 1, and like the outer door 2 inside the outer door 2, a rotatably supported open / close between a pair of opposed side plates 4 and 5 of the box 1. The inner door 3 is provided.

The box 1 is formed by bending a single iron plate to form a four-sided side plate.
4,5,6,7 are formed, and another iron plate is attached between the four circumferential side plates 4,5,6,7 to form a bottom plate. Four side plate
As shown in FIG. 2, 4, 5, 6 and 7 are formed by bending the inner surface inward and rearward to form a recess 8, in which the outer door 2 is pivotally supported to open and close. ing. The inner peripheral surfaces of the four peripheral side plates 4, 5, 6, 7 are further bent inward to the inner side, and the inner door 3 is also pivotally supported.
Inside the box 1, electric devices such as a main switch 9 and a branch switch 10 are arranged.

As shown in FIGS. 1 and 3, the pair of side plates 4 and 5 have bearing holes for supporting shaft portions 22, 23 of the outer door 2, which will be described later.
11 and 12 are formed to support the outer door 2 so that it can be opened and closed freely. One bearing hole 11 is formed in a circular shape and has a cylindrical shaft portion.
22 is supported. The other bearing hole 12 is formed with a bearing member 13 which is formed in a substantially elliptical shape and which supports the shaft portion 23. The bearing member 13 has a notch 14a in the internal cavity,
14 and a rotation restricting portion 15 connected to the shaft insertion portion 14 and inserted into the bearing hole 12. A rotation restricting projection 24 of a shaft portion 23 described later is aligned with the notch 14a. The part 23 to the rotation restricting part 15
It can be dropped in the direction. The rotation restricting portion 15 is formed with a rotation restricting groove 15a for restricting the rotation range of the rotation restricting projection 24 to approximately 90 degrees, and the maximum open position of the outer door 2 is set to approximately 90 degrees from the closed position. The outer door 2 is restricted to a position before the outer surface 2a of the outer door 2 contacts the one side plate 7 of the box 1.

The outer door 2 is formed by bending a single iron plate, similarly to the four peripheral side plates 4, 5, 6, and 7 of the box 1, and as shown in FIG. The box 1 is rotatably supported between a pair of opposed side plates 4 and 5 on the inner surface. Shaft members 16 and 17 having shaft portions 22 and 23 forming a shaft fulcrum with the above-described bearing hole 11 or bearing member 13 are attached to the upper and lower sides of the side plate 7 side of the outer door 2. Is supported on the inner surface of the box 1 so that it can be opened and closed freely. Outside door
At approximately the center of the side plate 6 side of 2, a locking member 18 that engages with the side plate 6 of the box 1 and locks the outer door 2 in a closed state is attached, and the locking member 18 can be operated. Thus, the outer door 2 can be kept closed or the outer door 2 can be opened.

As shown in FIG. 2, the shaft members 16 and 17 are attached to the inner surface of the outer door 2 by screws 19, and are moved by adjusting screws 21 which are movable in the elongated holes 20 to thereby form the shaft members 22 and 17. ,
23 is inserted through bearing hole 11 or bearing member 13 and outer door 2 is
It will be supported by 1 inner surface. The basic structure of the shaft members 16, 17 is the same as that of Japanese Patent Application No. 7-70184, and a detailed description thereof will be omitted. As described above, the shaft portion 23 of the shaft member 17 is provided with the rotation restricting projection 24 for restricting the rotation range within the rotation restricting groove 15 within a range of approximately 90 degrees. This shaft member
17 and the bearing member 13 mounted in the bearing hole 12, the outer door 2 is opened to the maximum open position so that the outer surface 2 a of the outer door 2 is located on one side plate 7 of the box 1.
A restricting means for restricting the position before the position where the contact is made.

To pivot the outer door 2 on the box 1, the outer door
2 is shifted by approximately 90 degrees with respect to the front surface 1a of the box 1,
The shaft member 22 of the bearing member 11 is inserted into the bearing hole 11, and the rotation restricting projection 24 of the bearing member 16 is aligned with the notch 14a (see FIGS. 6 and 7). To be inserted.

Although not shown, the inner door 3 has a side plate similar to the outer door 2.
Closed by screws 25 to a frame (not shown) for arranging electrical equipment which is rotatably supported between a pair of side plates 4 and 5 facing each other on the side 7 and is housed inside the box 1 on the side plate 6 side. Screwed in the state. The inner door 3 is provided with window holes 26, 27 for operating the handle of the main switch 9 and the branch switch 10, so that each handle can be operated with the inner door 3 closed. . A name plate 28 is attached to a position corresponding to each branch switch 10, and the branch switch
The branch circuit by 10 is clearly understood.

Next, a method of restricting the maximum opening position of the outer door 2 by the shaft member 17 and the bearing member 13 in this embodiment is shown in FIG.
7 will be described with reference to FIG. According to this embodiment, as shown in FIGS. 4 and 5, when the outer door 2 is closed, the outer surface 2a of the outer door 2 and the front surface 1a of the box 1 are substantially flush as in the conventional example. ing. At this time, the rotation restricting projection 24 of the shaft 23
As shown in FIG. 5, is positioned laterally in the rotation restricting groove 15a of the bearing member 13. When the outer door 2 is opened, the rotation restricting projection 24 of the shaft 23 moves within the rotation restricting groove 15a of the bearing member 13 as shown in FIG.
Abuts the end face of Therefore, as shown in FIG.
The outer door 2 is further opened and the maximum opening position of the outer door 2 is regulated so that the outer surface 2a of the outer door 2 does not contact the one side plate 7 of the box 1. The paint on the side plate 7 is less likely to peel off and is less likely to rust.

According to the present embodiment, the shaft portion is formed on the outer door and the bearing portion (bearing hole) is formed on the pair of side plates facing the box body. Bearing hole)
It is sufficient if the shaft and the bearing (bearing hole) are formed between the outer door and the pair of side plates of the box, for example, by forming a shaft on a pair of opposed side plates of the box. In addition, the inner door, like the outer door, is a door that can be freely opened and closed by the box, such as regulating the maximum open position of the inner door before the position where the outer surface of the inner door contacts one side plate of the box. If so, the shaft member and the bearing member of the present embodiment can be used. Further, according to the present embodiment, the maximum open position of the outer door is regulated by one of the two pivot points (side plates 4 and 5) (the side plate 5 side). The maximum open position of the outer door may be restricted on the other one of the pivot points (side plates 4 and 5) or on both sides of the two pivot points (side plates 4 and 5).

Further, according to the present embodiment, the maximum position of the outer door is set to approximately 90 degrees from the closed position, and the weight of the outer door itself is added so that the outer door is bent in the direction of one side plate of the box. However, there is enough space so that the outer surface of the outer door can be restricted to a position where it does not come into contact with one side plate of the box.

[0018]

According to the box box of the first aspect,
A box body formed into a shape having an opening on one surface by a bottom plate and a four-sided side plate; A closing box, and a panel box comprising: a shaft part and a bearing part that form at least one of the two fulcrum points of the two fulcrum points that support the door; The outer surface of the door does not come into contact with one side plate of the box when the door is opened. It is hard to peel off and it is hard to rust. In addition, since the shaft and the bearing are used as the restricting means for restricting the maximum opening position of the door, the restricting means is not visible when the door is opened, so that the appearance is greatly improved.

According to the second aspect of the present invention, the regulating means of the first aspect is a bearing mounted with a rotation regulating groove having a predetermined angle in a bearing hole formed in a box or a door. Since it is composed of a member and a shaft member which is attached to the door or the box and has a rotation restricting projection formed to face the rotation restricting groove of the bearing member, the door according to claim 1 is added. There is an effect that the structure of the restricting means for restricting the position where the valve is maximally opened is simplified.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing the entire structure of the embodiment shown in FIG. 1;

FIG. 3 is an exploded perspective view showing an upper pivot point of FIG. 2;

FIG. 4 is a cross-sectional view showing a state where the outer door of FIG. 2 is closed.

FIG. 5 is an explanatory view showing a shaft portion and a bearing member of FIG. 4;

FIG. 6 is a sectional view showing a state where the outer door of FIG. 2 is opened.

FIG. 7 is an explanatory view showing a shaft portion and a bearing member of FIG. 6;

FIG. 8 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 Box 2 Outer door (door) 4,5,6,7 Four side plates 11,12 Bearing hole 13 Bearing member 15a Rotation angle regulating groove 16,17 Shaft member 22,23 Shaft 24 Rotation regulating protrusion

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Keisuke Fujita 11 Asuka Co., Ltd.

Claims (2)

[Claims] 1. A box formed in a shape having an opening on one surface by a bottom plate and a four-sided side plate, and an opening edge of the box is pivotally supported between a pair of opposed side plates on the inner surface of the box so as to be openable and closable. A door for closing the opening of the box, wherein the door and the bearing that constitute at least one of the two fulcrums that support the door are opened to the maximum extent. A box for a panel, characterized in that the position of the door is restricted to a position before the outer surface of the door comes into contact with one side plate of the box. 2. The bearing member according to claim 1, wherein said regulating means is provided with a rotation regulating groove having a predetermined angle in a bearing hole formed in said box or door, and a bearing member attached to said door or box. The box for a board according to claim 1, characterized in that it is constituted by a shaft member formed with a rotation restricting projection facing the rotation restricting groove.