JPH06315211A - Distribution board - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a distribution board in which the strength of the box is less likely to deteriorate without fear of removing even the knockout portion that does not have to be removed. [Structure] Knockout part for introducing or leading out electric wire conductors
A bottom plate 2 having 4 and fixed in a state facing the wall material, and a side plate 3 standing upright from the four perimeters of the bottom plate, forming a box-shaped box body 1 having a one-sided opening, and each branch circuit housed in the box body. In a distribution board equipped with an internal unit 10 including a breaker for supplying electricity to the box, and a lid 14 for closing the opening of the box, the bottom plate of the box is
A taper 7a, through which the tip of the writing instrument penetrates, is provided in the groove 7 forming the knockout portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board used in houses, shops and the like.

[0002]

2. Description of the Related Art Conventionally, a distribution board of this kind has a bottom plate having a knockout portion for introducing or leading out an electric wire conductor and fixed in a state of facing a wall material, and side plates standing upright from four circumferences of the bottom plate. A box-shaped box having a one-sided opening, and an internal unit including a breaker housed in the box and supplying electricity to each branch circuit,
And a lid that closes the opening of the box.

In order to introduce the wire conductor into the box body of the distribution board or to lead the wire conductor out of the box body, the knockout portion is removed from the bottom plate, and then a writing instrument such as a pencil or a ballpoint pen is provided along the edge of the knockout opening. The wall material is marked with, a through hole is formed in the wall material along this mark, and this is performed from the inside of the wall material through the through hole and the knockout hole.

[0004]

According to the distribution board described above, the knockout opening is formed after the knockout portion is removed from the bottom plate in order to introduce the wire conductor into the box body or lead the wire conductor out of the box body. Since the wall material is marked along the edge with a writing instrument such as a pencil or a ballpoint pen and the through hole is formed in the wall material along the mark, there is a risk that even the knockout portion which does not need to be removed may be removed. In this case, there is a problem that the strength of the box body is likely to decrease.

The present invention has been made in view of the above circumstances, and an object thereof is to enable a wall material to be marked with a writing instrument such as a pencil or a ballpoint pen without removing the knockout portion. An object of the present invention is to provide a distribution board in which there is no fear of removing even the knockout portion which may not be necessary and in which the strength of the box does not easily decrease.

[0006]

In order to solve such a problem, a distribution board according to claim 1 has a knockout portion for introducing or leading an electric wire conductor, and is fixed to a wall plate so as to face the wall material. And a box-like body having a box-shaped opening on one side by side plates standing upright from the four circumferences of the bottom plate, an internal unit including a breaker housed in the box body and supplying electricity to each branch circuit, and an opening of the box body is closed. In the distribution board provided with the lid, the bottom plate of the box has a taper through which the tip of the writing instrument penetrates in the groove forming the knockout portion.

According to a second aspect of the distribution board, the knockout portion of the first aspect is provided closer to the wall material than the bottom plate.

According to a third aspect of the distribution board, the taper according to the first or second aspect is provided on the periphery of the knockout portion.

According to a fourth aspect of the distribution board, the taper according to the first to third aspects is provided at the knockout opening edge of the bottom plate.

[0010]

According to the structure of claim 1, the tip of a writing instrument such as a pencil or a ballpoint pen penetrates the outer surface of the box along the taper of the groove forming the knockout portion from the inner surface of the box, and hits the surface of the wall material. Contact.

According to the structure of claim 2, in addition to the effect of claim 1, the width of the groove through which the tip of a writing instrument such as a pencil or a ballpoint pen penetrates can be reduced.

According to the structure of claim 3, in addition to the effect of claim 1 or claim 2, the tip of a writing instrument such as a pencil or a ballpoint pen is penetrated along a taper provided at the peripheral edge of the knockout portion to form a wall. Accurate marks can be written on the material.

According to the structure of claim 4, in addition to the effects of claims 1 to 3, the opening edge of the bottom plate with which the electric wire conductor contacts can be made more acute than a right angle in the state where the taper is removed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a box body, which is formed by bending an iron plate and has four knockout portions 4 for introducing electric wire conductors (not shown) and is fixed in a state of facing a wall member 20 (see FIG. 5). The bottom plate 2 and the side plates 3 erected from the four circumferences of the bottom plate 2 form a box-like one-side opening. The bottom plate 2 is provided with a fixed shaft 5 for fixing an internal unit, which will be described later, and the substrate frame of the internal unit is passed through the fixed shaft 5 to fix the internal unit. The knockout part 4 is formed in a substantially rectangular shape with a part of the knockout part 4 connected to the bottom plate 2 by a holding piece 6 and a groove 7 sandwiched therebetween. The knockout portion 4 can be removed from the bottom plate 2 by cutting the holding piece 6 with a member such as a knife. The groove 7 is provided with a taper 7a that allows the tip 8a (see FIG. 5) of a writing instrument 8 such as a pencil or a ballpoint pen to penetrate from the inner surface of the bottom plate 2 to the outer surface and to mark the wall material 20. Part 4 does not have to be removed. At the ends of the two opposite sides of the side plate 3, there are provided hooking portions 9 that hook on the inner surface of the lid body, which will be described later. One side 9a of the hooking portion 9 is spring-biased toward the outside of the box body 1 so that the lid body can be locked.

Reference numeral 10 denotes an internal unit, which is a knockout portion from inside the wall member 20.
The main breaker 11 that connects the electric wire conductor on the power supply side that is introduced via 4, the branch breaker 12 electrically connected to the main breaker 11, and the main breaker 11 and the branch breaker 12 are attached to the bottom plate of the box 1. Frame 13 for fixing to 2
, And supplies electricity to each branch circuit.
The inner unit 10 is formed with a round hole formed at both ends of the frame 13.
Attachment screw 13b from 13a to the fixed shaft 5 described above (see FIG. 3)
Screw to fix to the bottom plate 2 of the box 1.

Reference numeral 14 denotes a lid, which closes the opening of the box 1, has a display portion 15a for displaying the respective branch circuits by projecting the handles of the main breaker 11 and the branch breaker 12, and the hook portion 9
It has a lid body 15 that is locked to the box body 1 via a cover 16 and a cover 16 that can expose or hide the display portion 15a of the lid body 15.

To introduce an electric wire conductor into or out of the box body 1 of this distribution board, a writing tool 8 such as a pencil or a ballpoint pen is provided in the groove 7 provided with the taper 7a of the knockout portion 4 in the box body 1. A mark is made on the wall member 20 with the tip 8a of the wall member 20, a through hole is formed in the wall member 20 along the mark, and this is performed from the inside of the wall member 20 through the through hole and the knockout hole.

FIGS. 6 and 7 show a second embodiment of the present invention, in which the knockout portion 4 of the bottom plate 2 of the first embodiment is provided on the wall member 20 side. As a result, the width of the groove 7 through which the tip 8a of the writing instrument 8 such as a pencil or a ball-point pen penetrates can be reduced, and the box body 1 becomes stronger.

FIGS. 8 and 9 show a third embodiment of the present invention, in which the taper 7a of the second embodiment is provided on the periphery of the knockout portion 4, whereby a writing instrument 8 such as a pencil or a ballpoint pen is provided. An accurate mark can be attached to the wall member 20 by penetrating the tip 8a along the taper 7a provided on the peripheral edge of the knockout portion 4.

10 and 11 show a fourth embodiment of the present invention in which the taper 7a of the second embodiment is provided at the opening edge of the knockout portion 4 of the bottom plate 2, whereby the knockout portion 4 is formed. In the removed state, the opening edge of the knockout part 4 where the wire conductor contacts can be made more acute than right angle,
The electric wire conductor is less likely to be scratched when the electric wire conductor is introduced or led out.

According to the first to fourth embodiments, the bottom plate is provided with four knockout portions. The knockout portions introduce the wire conductor into the box body or lead the wire conductor out of the box body. It is necessary to have more than the indispensable number. In addition, the width of the groove is adjusted to the space between the bottom plate of the box and the surface of the wall material so that the box material is fixed to the wall material so that the tip of the writing instrument can penetrate and mark the wall material. And design appropriately.

[0023]

According to the distribution board of the present invention, the tip of a writing instrument such as a pencil or a ballpoint pen penetrates the outer surface of the box body along the taper of the groove forming the knockout portion from the inner surface of the box body. Since it comes into contact with the surface of the box, you can mark the wall material with a writing instrument such as a pencil or ballpoint pen without removing the knockout part, and there is no risk of removing the knockout part that does not have to be removed, and the strength of the box body It is difficult to decrease.

According to the distribution board of the second aspect, the width of the groove through which the tip of a writing instrument such as a pencil or a ballpoint pen penetrates can be reduced, and in addition to the effect of the first aspect, the strength of the box body is further reduced. It becomes difficult.

According to the distribution board of claim 3, claim 1
Alternatively, in addition to the effect of the second aspect, it is possible to write an accurate mark on the wall material by penetrating the tip of a writing instrument such as a pencil or a ballpoint pen along a taper provided at the periphery of the knockout portion.

According to the distribution board of claim 4, in the state where the knockout portion is removed, the opening edge of the knockout portion with which the electric wire conductor contacts can be made more acute than a right angle.
In addition to the effect described in claim 3, the electric wire conductor is less likely to be scratched when the electric wire conductor is introduced or led out.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a state in which the lid body of FIG. 1 is attached to the box body.

FIG. 3 is a front view showing a state in which the inner unit is fixed to the box body of FIG.

FIG. 4 is a perspective view showing a knockout portion of the one shown in FIG.

FIG. 5 is an explanatory diagram showing a method of marking the wall material of FIG. 4;

FIG. 6 is a perspective view of a knockout portion showing a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a method of marking the wall material of FIG. 6;

FIG. 8 is a perspective view of a knockout portion showing a third embodiment of the present invention.

FIG. 9 is an explanatory diagram showing a method of marking the wall material of FIG. 8;

FIG. 10 is a perspective view of a knockout portion showing a fourth embodiment of the present invention.

FIG. 11 is an explanatory diagram showing a method of marking the wall material of FIG.

[Explanation of symbols]

 1 Box 2 Bottom plate 3 Side plate 4 Knockout part 7 Groove 7a Taper 8 Writing instrument 8a Writing instrument tip 10 Internal unit 14 Lid

Claims (4)

[Claims] 1. A bottom plate having a knockout part for introducing or leading out an electric wire conductor and fixed in a state of facing a wall material, and a box-shaped box body having a one-sided opening by side plates standing from four circumferences of the bottom plate. An internal unit including a breaker that is housed in the box and supplies electricity to each branch circuit, and a lid that closes the opening of the box,
In the distribution board provided with, the bottom plate of the box body is provided with a taper through which a tip of a writing instrument penetrates in a groove forming a knockout portion thereof. 2. The distribution board according to claim 1, wherein the knockout portion is provided closer to the wall material than the bottom plate. 3. The distribution board according to claim 1, wherein the taper is provided on a peripheral edge of the knockout portion. 4. The distribution board according to claim 1, wherein the taper is provided at a knockout opening edge of the bottom plate.