JP2521941Y2 - box - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a box such as a distribution board and a terminal board.

[0002]

2. Description of the Related Art Heretofore, in a box of this type, a box housing a breaker or the like and a front frame having a door pivotally mounted thereon are divided and assembled on site. As a specific structure, as shown in FIG. 6, an L-shaped mounting bracket 52 is fixed to a projection 51 formed on the peripheral edge of the opening of the box 50, and the front frame 53 is screwed to the L-shaped mounting bracket 52. Mounting holes (not shown) are provided in the metal fitting 52 and the front frame 53. Further, the front frame 53 is provided with a concave portion 54 so as to surround one side of the protrusion 51 and the mounting bracket 52.

[0003]

An input / output wire is wired around the mounting bracket 52, but the wire coating may be broken at the corners of the mounting bracket 52 during wiring work or the like. When the front frame 53 is screwed, the front frame 53
It was necessary to further pass the fixing screw passed through the mounting hole of the mounting bracket 52 into the mounting hole of the mounting bracket 52, and the work was difficult.

Further, when the front frame 53 is mounted, the front frame 53 is lowered by its own weight by a gap formed between the inner flange 54a of the concave portion 54 and one side of the mounting bracket 52. 53 had to be supported. Also, since the other side of the mounting bracket 52 and the front frame 53 are in close proximity, the outer flange portion 54b of the concave portion 54 and the
In some cases, the peripheral edge of the opening may be hit, for example, and there is a problem that the coating on the peripheral edge of the opening is damaged by vibrations during the transportation of the product.

Accordingly, an object of the present invention is to provide a box that protects the coating of the input / output wires, facilitates the installation of the fixing screw, prevents the front frame from lowering during installation, and prevents the paint from being damaged. It is to be.

[0006]

The box of the present invention is:
A box having an opening edge bent inward to project a projection forward, a plurality of L-shaped mounting brackets having one side fixed to the projection and having a screw hole on the other side, and a projection and a mounting bracket. One side is surrounded by a concave portion, and a vertical surface portion facing the other side of the mounting bracket extends from an end of an inner flange of the concave portion, and a fixed screw insertion hole is provided at a position corresponding to the screw hole. In a box including a front frame, a cover body covered on the other side of the mounting bracket, and a hole formed at a position on the front surface of the cover body corresponding to the screw hole and having a slope-shaped guide portion on a peripheral edge, A metal cover is provided which extends forward from an opening edge on the front side of the cover body and is interposed between one side of the mounting metal and the inner flange.

[0007]

According to the configuration of the present invention, the other side of the L-shaped mounting bracket is covered by the cover body of the bracket cover, so that the coating of the input / output wire is not broken by the mounting bracket. In addition, since an inclined surface guide portion is provided on the periphery of the hole portion of the bracket cover, the fixing screw passing through the fixing screw insertion hole of the front frame is guided to the screw hole of the mounting bracket by this guide portion, so that it is easy. Can be screwed. Furthermore, since the projection of the metal cover is interposed between the inner flange of the front frame and one side of the mounting bracket, the front frame does not lower when the front frame is mounted.
Further, since the vertical surface of the front frame is pushed forward by the front surface of the cover main body, the outer flange of the concave portion does not hit the opening peripheral edge of the box, so that the coating of the opening peripheral edge can be prevented from being damaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A box according to an embodiment of the present invention will be described with reference to FIGS. This box is used for a distribution board or the like, and includes a box 1 and a front frame 3 attached to the front surface of the box 1 via L-shaped mounting brackets 2. Specifically, the opening edge 1a of the box 1 is bent inward to project the projection 4 forward, and one side 2a of the mounting bracket 2 is attached to the projection 4 on the upper and lower sides of the opening edge 1a. It is stuck.
A screw hole 5 is provided on the other side 2b projecting inward from the mounting bracket 2b. The front frame 3 includes the protrusion 4 and the mounting bracket 2.
A concave portion 6 surrounding one side 2a of the mounting member 2 and a vertical surface portion 7 facing the other side 2b of the mounting bracket 2 from an end of the inner flange 6a of the concave portion 6; Face part 7
Are provided with fixing screw insertion holes 8. The front frame 3 has a door 9 pivotally attached to the door so as to be openable and closable, and an inner lid 12 in which a main breaker 10 and a plurality of branch breakers 11 are disposed. The front frame 3 and the inner lid 12
It is disassembled at the site and assembled into the box 1 in the final work of electrical work.

The mounting bracket 2 is covered with a bracket cover 13 as shown in FIG. This bracket cover 13
It is formed of an insulator such as a synthetic resin and serves to protect the coating of the input / output wire for wiring around the mounting bracket 2. Specifically, this metal cover 13 is attached to the other side 2 b of the mounting metal 2.
Of the cover body 14 and the screw hole 5 of the mounting bracket 2
A hole 16 formed at a position on the front surface of the cover body 14 corresponding to the front surface of the cover body 14 and having an inclined guide portion 15 on the periphery thereof; Projection piece 1 interposed between side 2a and inner flange 6a
7 and covers most of the corners of the mounting bracket 2 which may break the coating of the electric wire.

FIG. 5 shows that the metal cover 13 is attached to the mounting metal 2.
2 shows a state where the camera is mounted on the camera. That is, the metal cover 1
3, the vertical surface portion 7 of the front frame 3 is pushed forward on the front surface of the cover body 14, and a projection 17 is formed in the gap A between the inner flange 6 a of the concave portion 6 and the other side 2 b of the mounting bracket 2.
Is interposed. In this state, a fixing screw (not shown) is inserted from the fixing screw insertion hole 8 of the front frame 3 to insert the metal cover 13.
Screwed into the screw hole 5 of the mounting bracket 2 through the hole 16.
At this time, since the fixing screw 20 inserted through the fixing screw insertion hole 8 is guided to the screw hole 5 by the guide portion 15 of the metal cover 13, the screwing operation becomes easy. Also, the projection 17
Therefore, the front frame 3 can be prevented from lowering by the gap A during the mounting operation. Further, since the outer flange 6b of the concave portion 6 is separated from the opening peripheral portion 1a of the box 1, it is possible to prevent the coating of the opening peripheral portion 1a from being damaged due to, for example, vibration during transportation of the goods.

[0011]

According to the box of the present invention, since the other side of the L-shaped mounting bracket is covered by the cover body of the bracket cover, the coating of the input / output wire is not broken by the mounting bracket. In addition, since an inclined surface guide portion is provided on the periphery of the hole portion of the bracket cover, the fixing screw passing through the fixing screw insertion hole of the front frame is guided to the screw hole of the mounting bracket by this guide portion, so that it is easy. Can be screwed.

Further, since the projection of the metal cover is interposed between the inner flange of the front frame and one side of the mounting bracket, the front frame does not lower when the front frame is mounted, and the workability is improved. Further, since the vertical surface of the front frame is pushed forward by the front surface of the cover main body, the outer flange of the concave portion does not hit the opening peripheral edge of the box, so that the coating of the opening peripheral edge can be prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a box according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the box without a metal cover.

FIG. 3 is a perspective view illustrating an appearance of a distribution board.

FIG. 4 is a perspective view showing a state where the door is opened.

FIG. 5 is a partial cross-sectional side view showing a state where the metal cover is mounted on the mounting metal.

FIG. 6 is a partial cross-sectional side view showing a conventional mounting bracket and its periphery.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 1a Opening peripheral part 2 Mounting bracket 2a One side 2b Other side 3 Front frame 4 Projection 5 Screw hole 6 Concave part 6a Inner flange 7 Vertical plane part 8 Fixed screw insertion hole 13 Metal cover 14 Cover body 15 Guide part 16 Hole 17 Protrusion

Claims (1)

(57) [Scope of request for utility model registration] 1. A box having an opening edge bent inward to project a projection forward, a plurality of L-shaped mounting brackets having one side fixed to the projection and having a screw hole on the other side, The protrusion and one side of the mounting bracket are surrounded by a concave portion, and a vertical surface portion facing the other side of the mounting bracket extends from an end of an inner flange of the concave portion and corresponds to the screw hole. In a box provided with a front frame provided with a fixing screw insertion hole at a position, a cover body covered on the other side of the mounting bracket, and a peripheral portion formed at a position on the front surface of the cover body corresponding to the screw hole. A hole having an inclined surface guide portion,
A box comprising: a metal cover that extends forward from an opening edge on the front side of the cover body and includes a protruding piece interposed between one side of the mounting metal and the inner flange.