JPH09289720A - Wiring box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to perform the wiring of cables in a wiring box extremely easily without damaging the cables by forming a notch part in the peripheral wall of the box body, so as to insert the cables into the box body in such a way as to cross its peripheral wall surface, and to penetrate the box body. SOLUTION: A wiring box 1 has a notch part 8 formed penetrating a box body 2 in the upward and downward directions in a sidewall 7 on the opposite side to a fitting part 30. For performing the wiring of a cable in the wiring box 1, the cable is drooped to the periphery of the wiring box 1 from above. Next, the lower side of the cable is grasped and the cable is inserted into the notch part 8 from the notch opening 8a, making it parallel to the sidewall 7 to cross the an internal of the box body 2. After the insertion, the cable penetrates in the upward and downward directions in the exposed state. Accordingly, it becomes unnecessary to perform troublesome work of inserting the cable into a through hole obtained by punching off a knocked out part or feeding hole provided beforehand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring box mounted on a building wall surface or the like, in which a cable is wired.

[0002]

2. Description of the Related Art A conventional wiring box of this type is shown in FIG.
Shown in In the figure, the wiring box 1 is attached to the vertical crosspiece 21 of the wooden frame by using attachment screws at the attachment portion 3. To wire the cable 11 to the wiring box 1, the knockout portion 1a on the side wall of the wiring box 1 is punched out, or the cable 11 is inserted into a through hole provided in advance.
Is inserted from above, and then the extra length portion 11a of the cable 11 required for wiring is bundled and housed in the wiring box 1, and then the extra length portion 11a of the cable 11 housed in the wiring box 1 is inserted. It was pulled out to the wall surface and connected to wiring equipment such as switches.

[0003]

However, in the conventional wiring box 1, it is necessary to punch the knockout portion 1a in order to insert the cable 11 into the inside thereof, which is troublesome. Further, it is troublesome to insert the cable 11 into the through hole after punching the knockout portion 1a or the through hole provided in advance from the tip portion thereof. Further, the work of bundling the extra length portions 11a and accommodating them in a round shape is similarly troublesome. Then, the cable 11 of the extra length portion 11a that has been erroneously bundled may be damaged when piercing with a cutter.

Therefore, the present invention is extremely simple and
An object of the present invention is to provide a wiring box in which a cable can be routed inside without damaging the cable.

[0005]

In the wiring box according to the invention of claim 1, a notch is formed in the peripheral wall surface so that a cable is inserted so as to traverse the peripheral wall surface of the box main body and penetrate the inside of the box main body. Are formed.

According to a second aspect of the present invention, there is provided a wiring box in which the notch according to the first aspect is formed on the side wall of the box body.

According to a third aspect of the present invention, there is provided a wiring box in which a withdrawal preventing portion is provided at an opening edge portion of the cutout portion according to the first or second aspect.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, a wiring box 1 made of a synthetic resin for housing wiring equipment is a box body 2
A mounting portion 3 is provided on one side wall of the housing, and a mounting screw is inserted into the mounting hole 4 from an oblique direction so as to be mounted on the vertical rail 21 of the wooden frame. The front opening 5 faces a wall hole 23 formed in the wall surface 22 in the room, and a wiring device mounting frame (not shown) can be mounted in the frame mounting hole 6.

Further, the wiring box 1 is provided with a notch 8 penetrating the inside of the box body 2 in the vertical direction on the side wall 7 on the opposite side of the mounting part 3, and the side wall 7 is formed from the notch opening 8a.
The cable 11 can be inserted so as to traverse. The notch 8 may be sized to hold the cable 11, or may be sized so that the cable 11 is simply inserted unless the cable 11 is pulled out by narrowing the notch opening 8a. If the knockout portions are formed on the upper and lower side walls of the box body 2, the cutout portions 8 may be formed in communication with the knockout portions. If both edges of the cutout opening 8a are rounded and chamfered, the cable 11 can be easily inserted and the cable 11 can be prevented from being damaged.

Next, the wiring of the cable in the wiring box of the present embodiment constructed as described above will be described. In order to wire the cable 11 to the wiring box 1 which is previously mounted on the vertical crosspiece 21 by using the mounting screws in the mounting holes 4, the cable 11 is hung from around the wiring box 1 and then As shown in FIG. 2, the cable 11 is inserted into the cutout portion 8 through the cutout opening 8 a in parallel with the side wall 7 in order to grip the lower portion of the cable 11 and cross the inside of the box body 2. After insertion, the cable 11 is vertically exposed while being exposed in the box body 2. Thereafter, as shown in FIG. 3, the cable 11 penetrating into the box body 2 is grasped from the front of the wall hole 23, and the lower end portion thereof is pulled up into the box body 2 and pulled out from the wall hole 23 to the wall surface. Connect the tip of the to a wiring device (not shown). With the above, wiring of the cable 11 is completed.

As described above, in the wiring box of the above embodiment, the cable 1 is arranged so as to cross the side wall 7 of the box body 2.
In order to insert 1 and penetrate the inside 2 of the box,
A notch 8 is formed in the side wall 7.

Therefore, the cable 11 is laterally attached to the side wall 7 without the troublesome work of inserting the cable from the tip into the through hole after punching the knockout portion or the through hole provided in advance. It can be inserted into the cutout portion 8 by an extremely simple operation of shifting the cutout opening 8a in parallel and crossing the cutout opening 8a. In addition, extra length 1
1a allows the cable 11 to pass through and be held in the box main body 2 in a straight state, so that the laborious work of bundling and housing the cable 11 as in the conventional case is not necessary. Further, since the extra length portion 11a is not housed in a bundled state, the cable 11 of the extra length portion 11a will not be accidentally damaged when the cutter is used to pierce.

By the way, in the above embodiment, the notch 8 is formed in the side wall 7, but it may be formed in the bottom wall 9 of the box body 2 as shown in FIG. Although the two cutouts 8 are formed, the number may be appropriately set according to the number of the cables 11. However, when the notch 8 is formed in the side wall 7, the cable 11 is provided from the side of the wiring box 1.
Since it can be inserted, it can be inserted without being restricted by the wall thickness. Further, in the above-mentioned embodiment, the box body 2 is shown to be formed in a box shape, but as shown in FIG. 5, it can be applied to the case where the peripheral wall is formed in a circular shape. That is, in the figure, in the box body 2 having a circular peripheral wall 7a, a cutout portion 8 is formed in the peripheral wall 7a so that the cable 11 can be inserted therethrough. The same action and effect as the main body 2 can be expected.

Next, a wiring box according to another embodiment of the present invention will be described. In FIG. 6, the cutout portion 8 is integrally formed with a removal preventing projection piece 8b that covers the opening, and the cutout opening 8a is formed between the removal prevention projection piece 8b and the side wall 7. In the case of this embodiment, the cable 11 is inserted into the notch opening 8a from an oblique side. In particular, in this embodiment, the opening of the cutout portion 8 is closed at the front by the pull-out preventing projection 8b, so that after the cable 11 is inserted into the cutout portion 8, the cable 11 pops out. Is prevented and can be accommodated in the box body 2 in a stable state.

As shown in FIGS. 7 and 8, elastic means 8c projecting toward the inside of the cutout portion 8a at both edges of the cutout opening 8a serves as a means for preventing the cable 11 from being pulled out after being housed.
May be formed. In this case, when the cable 11 is inserted from the front opening 8a, the cable 11 is housed in the notch 8 against the elastic force of the elastic piece 8c due to the pressing force, and the elastic piece 8c elastically returns. Then cable 11
Is prevented from popping out.

Incidentally, the pull-out preventing projections 8b and the elastic pieces 8c correspond to the pull-out preventing portions in the claims, but when the present invention is carried out, these pull-out preventing means are used. The means is not limited, and any means that can prevent the cable 11 from jumping out of the box body 2 can be used.

By the way, according to the wiring box of the present invention, as shown in FIGS. 9 to 11, it is possible to use it for the feed wiring when a plurality of wiring boxes 1 are vertically arranged. In the figure, two wiring boxes 1 are vertically arranged side by side on a vertical crosspiece 21, and a cable 11 is inserted into notches 8 formed in the upper and lower two wiring boxes 1 to be used for two wiring boxes. It is penetrated into the box 1. And
As shown in FIG. 10, the connection with the wiring device is performed by cutting the cable 11 in each wiring box 1 with a cutter or the like,
As shown in FIG. 11, both ends of the cutting can be pulled out to the wall surface.

If the notch width of the notch 8 on the lower side wall of the upper wiring box 1 is made slightly smaller than the diameter of the cable 11, the lower cable 1 after cutting is cut.
It is also possible to sandwich 1 in this part. The cables 11 can be bundled and housed in the wiring box 1 as shown in FIG.
You may store in a linear state. In this case, the cable 11 in the extra length portion is not accidentally damaged when the wall hole is formed by the cutter.

[0019]

As described above, in the wiring box according to the invention of claim 1, a cable is inserted so as to traverse the peripheral wall surface of the box main body so as to penetrate the inside of the box main body.
A notch is formed on the peripheral wall surface. Therefore, the cable can be inserted into the cutout portion by a very simple operation of shifting the cable from the side toward the cutout opening on the peripheral wall surface, and can be accommodated in the box body in a penetrating state. In addition, since the extra length portion can hold the cable in a straight line state by penetrating it inside the box body, it is not necessary to carry out the troublesome work of bundling and storing the cable as in the conventional case. And
Since the extra length portion is not housed in a bundled state, the cable of the extra length portion is not accidentally damaged when the cutter is used for drilling.

According to a second aspect of the present invention, there is provided a wiring box in which the notch according to the first aspect is formed on a side wall of the box body. Therefore, in particular, since the cable can be inserted from the side of the wiring box, the cable can be inserted without being restricted by the wall thickness.

According to a third aspect of the present invention, there is provided a wiring box in which a withdrawal preventing portion is provided at an opening edge portion of the cutout portion according to the first or second aspect. Therefore, in particular, after the cable is inserted into the cutout portion, it is possible to prevent the cable from jumping out and can be stably accommodated in the box body.

[Brief description of drawings]

FIG. 1 is a perspective view showing a wiring box according to an embodiment of the present invention.

FIG. 2 is a front view showing a state in which a cable is inserted into the cutout portion of FIG.

FIG. 3 is a front view showing a state in which the cable in the cutout portion of FIG. 1 is pulled out to the wall surface.

FIG. 4 is a perspective view showing another wiring box according to the embodiment of the present invention.

FIG. 5 is a perspective view showing still another wiring box according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a wiring box according to another embodiment of the present invention.

FIG. 7 is a perspective view showing another wiring box according to another embodiment of the present invention.

8 is a plan view showing the wiring box of FIG. 7. FIG.

FIG. 9 is a front view showing a state in which a cable is inserted into the wiring boxes arranged in parallel according to the present invention.

10 is a vertical cross-sectional view showing a state in which the cable in the wiring box of FIG. 9 is cut.

FIG. 11 is a vertical cross-sectional view showing a state where the cut cable in the wiring box of FIG. 9 is pulled out to the wall surface.

FIG. 12 is a front view showing a state in which a cable is wired in a conventional wiring box.

[Explanation of symbols]

 1 wiring box 2 box body 7 side wall 7a peripheral wall 8 cutout 8a cutout opening 8b pull-out prevention projection 8c elastic piece 9 bottom wall 11 cable

Claims (3)

[Claims] 1. A wiring box, wherein a cutout is formed in the peripheral wall surface so that a cable is inserted so as to cross the peripheral wall surface of the box main body and penetrate the inside of the box main body. 2. The wiring box according to claim 1, wherein the cutout portion is formed on a side wall of the box body. 3. The wiring box according to claim 1, wherein the cutout portion is provided with a pull-out prevention portion at an opening edge portion thereof.