JP3158193B2 - Wiring box - Google Patents

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 in a wall hole and accommodating a wiring device or the like therein, and in particular, a part of two or more circular holes is overlapped and connected. And a wiring box attached to the wall hole.

[0002]

2. Description of the Related Art Conventionally, there is a technique disclosed in Japanese Utility Model Publication No. 58-2115 as a wiring box which is inserted into a wall hole formed in a wall material from a wall surface and is attached to the wall material. Such a wiring box is formed in a rectangular box shape and fitted into a wall hole,
A wiring device and the like are housed inside, and a wiring device mounting frame, a decorative cover, and the like are mounted in the opening.

[0003]

However, since the wiring box is formed in a rectangular box shape, a rectangular wall hole corresponding to the outer shape of the wiring box is formed in order to fit into the wall hole. Must be set up. However, the work has to be extremely troublesome, since a saw or a cutter must be used to form a square.

Japanese Patent Publication No. 46-16203 discloses a technique of forming a wall hole made of one circular through hole in a wall material and attaching a wiring box to the wall hole. The wiring box 1 disclosed in Japanese Utility Model Publication No. 46-16203.
Since the outer shape is formed in a circular shape corresponding to the wall hole formed of a circular through hole, it can be attached to the wall hole.

However, when the wall hole is formed by only one circular through hole, a plurality of wiring devices cannot be installed in various arrangements. That is, a plurality of wiring devices cannot be inserted in one circular through hole having a size not protruding from the wiring device mounting frame or the decorative plate. For example, when two wiring devices are to be mounted vertically, two wiring devices cannot be mounted in the wall hole with one circular through hole. Therefore, in order to be able to mount two wiring devices, the wall hole must be formed with an unnecessarily large circular through hole. However, in this case, as shown in FIG.
Wall holes 12 provided in the wiring box 1 and the wall material 11;
Due to the difference in the outer shape between the wiring device mounting frame 21 to which the two wiring devices 23 are mounted and the decorative plate, a protruding portion 24 indicated by oblique lines is formed on the wiring box 1 and the wall hole 12 side, and the appearance is deteriorated. In order to prevent this, the wiring device mounting frame 21 and the decorative plate become unnecessarily large.

Therefore, when a plurality of wiring devices 23 are mounted in this manner, as shown in FIG.
It is necessary to form a wall hole 12 in which a plurality of circular through holes are connected to each other, and make the wiring box 1 elongated vertically. However, in such a wall hole 12 in which a plurality of circular through-holes are connected, the protruding portion 13 is formed at the connection point, and thus the side wall of the wiring box 1 cannot be attached because it interferes with this.

Accordingly, the present invention provides a wiring box that can be mounted on a wall hole formed by using a piercing tool such as a forsaw so that a plurality of wiring devices can be mounted at arbitrary positions. It is an issue.

[0008]

According to a first aspect of the present invention, there is provided a wiring box which is attached from a wall surface to a wall hole formed by connecting a part of two or more circular through holes. And a contact portion that contacts the peripheral edge of the wall hole, and two or more
A part of the circle is formed into an outer shape corresponding to the shape that overlaps
Peripheral wall portion, and each of the circles provided at the center of the circle.
Bottom wall with scribing holes for scoring the center of perforation
Between the peripheral wall portion and the bottom wall by preventing interference between the peripheral wall portion and the protruding portion formed on the peripheral edge of the wall hole at the connection point of the circular through hole.
In order to enable insertion into parts the wall hole of said circumferential wall and
And an interference prevention portion formed on the bottom wall portion .

According to a second aspect of the present invention, in the wiring box, the interference preventing portion according to the first aspect is arranged along the circle of the circular through hole.
It is formed so as to be depressed inward. Claim 3
The wiring box according to claim 1, wherein
The stop portion is formed by removing a part of the outer wall portion.

According to a fourth aspect of the present invention, there is provided a wiring box, wherein the wiring box according to any one of the first to third aspects sandwiches a wall material with an abutting portion by an operation from a wall surface. It is provided with a holding piece to be formed.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the drawing, a wiring box 1 has an outer wall portion formed by a hollow columnar peripheral wall portion 2 having a general cross section formed by connecting a part of two circles and connected to each other, and a bottom wall portion 3 closing one side opening. , Formed in a box having an opening 4 on the other side of the peripheral wall portion 2 . A pair of abutting portions 5 for mounting the surface and wiring box 1 in contact with the wall material 11 are projected laterally on the right and left side portions of the front Symbol peripheral wall 2 of the opening 4. The bottom wall 3 has a score hole 3b formed at the center of each of two circles . Further, in the inner upper and lower positions of the peripheral wall portion 2 a pair of mounting portions 6 for mounting the wiring device mount frame 21 is integrally provided.

The peripheral wall 2 has a pair of right and left interference preventing portions 2a recessed inward along the circle at the junction of the two circles.
Are continuously formed in the thickness direction. Similarly, the bottom wall 3 is also provided with an interference prevention portion 3a which is depressed inward.

A screw 7 that can be screwed from the opening 4 side is attached to the upper and lower two places of the peripheral wall portion 2 toward the depth side. A holding piece 8 that rotates up and down by a certain angle in a parallel direction is screwed. Further, a rotation preventing portion 2c for preventing the holding piece 8 from rotating beyond a certain angle is formed in the peripheral wall portion 2 in parallel with the screw 7. That is, when the screw 7 is rotated, the holding piece 8 is prevented from rotating following the screw 7 by the rotation preventing portion 2c.
The wall material 11 is screwed to the side to pinch the wall material 11.

On the other hand, a wall hole 12 is formed in the wall member 11 so as to form a ball-shaped wall formed by connecting a part of two circles and connecting them. The reason why the wall hole 12 is formed in such a shape that two circles are connected to each other is that the wall hole 12 for easily attaching the wiring box 1 to the wall material 11 by using a well-known piercing tool such as a forsaw. It is for forming. Since the wall hole 12 is formed by merely overlapping a part of the two circles in this manner, a projection 13 projecting inward is formed in the overlapped portion by itself. Therefore, since the wall hole 12 is formed in the wall material 11 in such a shape of a bulge, both the peripheral wall portion 2 and the bottom wall portion 3 constituting the outer wall portion of the wiring box 1 have the same shape as the wall hole 12. Corresponding to the shape. That is, the shape of the interference preventing portion 2a serving as a relief for preventing interference with the projecting portion 13 of the wall hole 12 at the time of insertion also corresponds to the shape of the projecting portion 13.

The wiring device mounting frame 21 is mounted on the opening 4 of the wiring box 1 after the wiring box 1 is mounted on the wall hole 12 of the wall material 11, and is not shown in the upper and lower pair of screw holes 22. After the mounting screw is inserted, the wiring box 1 is attached to the wiring box 1 by being screwed to the mounting portion 6 of the wiring box 1. The wiring device mounting frame 21
In the opening at the center of the wiring device, two wiring devices 23 are vertically arranged facing the wall surface. After the wiring device mounting frame 21 is mounted on the wiring box 1, the main body of the wiring device 23 is used for wiring. It is housed in Box 1. Further, the wiring device mounting frame 21
A decorative plate 25 is attached to the front surface of.

Next, a description will be given of the mounting of the wiring box thus constructed to the wall member in the present embodiment. First, in order to form the wall hole 12 in the wall material 11, the wall hole 1 is formed.
The bottom wall portion 3 of the wiring box 1 is brought into contact with the position where the hole 2 is to be formed, and two center holes are formed on the surface of the wall material 11 through the score holes 3b. Next, the center of the piercing tool such as a well-known hole saw is positioned at the center of the scribed hole, and two circular through-holes are formed. 12 is easily formed.

After the wall holes 12 are provided in this manner,
The holding piece 8 is tilted to the left when viewed from the front side so that it does not protrude outward from the outer wall portion 3, and then the wiring box 1 is directed from the wall surface toward the wall hole 12 at right angles to the wall surface. Insert in the direction. At this time, the peripheral wall portion 2 and the bottom wall portion 3 of the wiring box 1 are provided with an interference preventing portion 2a and an interference preventing portion 3a in order to prevent interference with the protruding portion 13 of the wall hole 12.
Since the concave portion is formed toward the inner side, it can be smoothly inserted into the wall hole 12 without hindering the insertion at all.

After the wiring box 1 is inserted into the wall hole 12, the screw 7 is rotated from the wall surface. Then
The holding piece 8 rises to the right following the rotation of the screw 7, protrudes from the outer peripheral surface of the outer wall portion 3, and further contacts the rotation preventing portion 2 c to prevent further rotation, ie, After the state shown by the two-dot chain line in FIG. 1 is reached, the rotation preventing portion 2c prevents further rotation with the screw 7 while the contact portion 5
Screw to the side. Then, the holding piece 8 is pressed against the back of the wall, and is held and fixed to the wall material 11 by the contact portion 5 and the flat portion of the holding piece 8. Here, the mounting of the wiring box 1 to the wall hole 12 is such that the wall material 11 is sandwiched and fixed by the contact portion 5 and the holding piece 8, so that the wall material 11 is soft and brittle such as a gypsum board. Even when it is formed of a material, it can be stably and easily attached.

Thus, the wall material 1 of the wiring box 1
1 is completed. In addition, although the four holding pieces 8 are provided for each of the upper and lower two pieces, as long as the wiring box 1 can be fixed to the wall material 11 stably, for example, one each of the upper and lower pieces may be used, and the number thereof is not limited.

When the wiring box 1 is mounted, the wall member 11 is not fixed by using the holding piece 8, but the screw hole 5a is held in a state where the contact portion 5 is in contact with the surface of the wall material. The wiring box 1 may be attached by inserting an attachment screw into the wall member 11 and screwing it to the wall material 11. In short, the attachment method is not limited.

After the wiring box 1 is mounted, a mounting screw is inserted through the screw hole 22 of the wiring device mounting frame 21 to which the wiring device 23 is mounted, and is screwed to the mounting portion 6 of the wiring box 1 so that the wiring device is mounted. The mounting frame 21 is attached to the wiring box 1, and a decorative plate 25 is further attached from above to cover the opening 4 of the wiring box 1.

As described above, the wiring box according to the present embodiment has the wall hole 1 formed by connecting a part of the two circular through holes and connecting them.
An interference prevention portion 2a and an interference prevention portion 3a for preventing interference with the second protrusion 13 are formed on an outer wall portion composed of the peripheral wall portion 2 and the bottom wall portion 3.

Therefore, even if the wall hole 12 has the protruding portion 13 in the overlapping portion, it does not hinder the insertion of the wiring box 1 at all, and the wiring box 1 can be mounted smoothly. Conversely, by means of the wiring box 1 having these interference preventing portions, it is possible to form the wall hole 12 in a continuous shape by overlapping a part of the two circular through holes. As a result, the wall hole 12 corresponding to the wiring box 1 can be easily formed by piercing a circular through hole using a well-known pier such as a forsaw, and a rectangular wiring device mounting frame. 21 is the opening 4 of the wiring box 1
Can be mounted on

Next, another embodiment of the present invention will be described with reference to FIG. In the drawing, a wiring box 1 has a peripheral wall portion 2 formed into an oval shape by joining and joining a part of two circles having a general cross section, and a bottom wall portion 3 for closing one side opening of the peripheral wall portion.
And the outer wall. Opening 4 of the peripheral wall 2
A pair of abutting portions 5 that abut against the surface of the wall member 11 are provided on the left and right side portions of the left and right sides to protrude laterally. Further, a pair of mounting portions 6 for mounting a rectangular wiring device mounting frame 21 similar to that of the above-described embodiment are integrally provided at upper and lower positions inside the peripheral wall portion 2.

The peripheral wall 2 has a pair of left and right cutout openings 2b serving as interference preventing portions at the connecting portion of the two circles, and the bottom wall 3 has an interference preventing portion 3a recessed inward. Have been.

That is, the wiring box of this embodiment having the above-described configuration is different from the wiring box 1 shown in FIG. 1 in that a notch opening 2b is formed in the peripheral wall portion 2.

Therefore, the formation of the cutout opening 2b does not hinder the insertion of the wiring box 1 into the wall hole 12, and particularly, the inside of the wiring box 1 and the space behind the wall communicate with each other. Therefore, the wiring in the wiring box 1 can be drawn out to the back of the wall through the notch opening 2b, or can be wired into the wiring box 1 from the back of the wall. In addition, the formation of the notch opening 2 allows the interference prevention unit 2 like the wiring box 1 of FIG.
Since a does not protrude inside, the inside of the wiring box 1 is wide.

Next, a modification of the wiring box shown in FIG. 2 is shown in FIG. In the figure, a pair of left and right cutout openings 2b are formed in a peripheral wall portion 2, and the bottom wall portion 3 is connected to the cutout opening 2b of the peripheral wall portion 2 and has a projection amount equal to or more than a protrusion amount of a protrusion 13 of a wall hole 12. A pair of U-shaped notch openings 3c are formed on the left and right sides.

In the case of this modification, since the cutout opening 3c of the bottom wall 3 is formed, insertion into the wall hole 12 is easier than in the wiring box 1 of FIG. Also, the wiring and the like can be drawn out from the bottom wall 3 side.

In each of the above embodiments, the present invention is applied to a wall hole 12 in which a part of two circular through holes are overlapped and connected. For example, as shown in FIG. 4, as shown in FIG. 4, part of three circular through holes are vertically overlapped and connected to each other, or as shown in FIG. 5, or as shown in FIG. The through hole is polymerized, and the circular through hole is arbitrarily polymerized, such as a continuous wall hole 12;
The shape of the wall hole 12 and the projection 13
By forming the interference preventing portion 2a on the peripheral wall portion 2 of the wiring box 1 corresponding to the protruding state of the wiring box 1, it can be applied in the same manner as the above embodiments, and the same effect can be obtained. In addition,
In the case of the wiring box 1 shown in FIG. 5, the wiring device mounting frame mounted on the opening 4 has a shape close to a square.

Further, the peripheral wall portion 2 and the bottom wall portion 3 in each of the above-described embodiments.
Is not limited to these shapes and forms, and may have any shape as long as it can prevent interference with the protrusion 13 of the wall hole 12 at the time of insertion.

[0032]

As described above, the wiring box according to the first aspect of the present invention is a wiring box that is attached from the wall surface to a wall hole in which a part of two or more circular through holes are overlapped and connected. And a contact portion contacting the peripheral edge of the wall hole, and two or more circular
A peripheral wall formed into an outer shape corresponding to the shape that partially overlaps
Part, provided at the center position of each of the circles,
The peripheral wall and the bottom wall are prevented from interfering with a bottom wall having a scribing hole for scribing the center of the perforation and a protrusion formed on the peripheral edge of the wall hole at a connection point of the circular through hole. And an interference prevention portion formed on the peripheral wall portion and the bottom wall portion so as to enable insertion into the wall hole. Therefore, in order to arrange and install a plurality of wiring devices at arbitrary positions, two or more circular through holes are partially overlapped to form a continuous wall hole using a well-known pier or other piercing tool. And the wiring box can be smoothly mounted corresponding to the wall hole.

According to a second aspect of the present invention, in the wiring box, the interference preventing portion according to the first aspect is arranged so that the interference preventing portion extends along the circle of the circular through hole.
It is formed so as to be depressed inward. Therefore,
The same effect as the first aspect is achieved. According to the invention of claim 3
In the wiring box according to the first aspect, the interference prevention unit according to claim 1 is obtained by removing a part of an outer wall portion. Therefore, in particular, the inside of the wiring box and the space behind the wall communicate with each other, so that the wiring can be drawn out from the inside of the wiring box to the back of the wall, or the wiring can be performed from the back of the wall into the wiring box. In addition, the internal space of the wiring box can be increased.

The wiring box according to claim 4, claim
The wiring box according to any one of claims 1 to 3, further comprising a holding piece for holding the wall material with the contact portion by an operation from the wall surface. Therefore, the wiring box can be stably and easily attached to a wall material made of a gypsum board or the like, which is formed of a soft and brittle material and is difficult to screw and fix with mounting screws or the like.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing a wiring box according to another embodiment of the present invention.

FIG. 3 is a perspective view showing a modification of the wiring box of FIG. 2;

FIG. 4 is a front view showing another wall hole different from FIG. 1;

FIG. 5 is a perspective view showing a wiring box applied to a wall hole different from the wall hole of FIG. 1;

FIG. 6 is an explanatory view showing a conventional wiring box and a mounting relationship between a wall hole and a wiring device mounting frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiring box 2 Peripheral wall part 2a, 3a Interference prevention part 2b, 3c Notch opening 3 Bottom wall part 5 Contact part 8 Nipping piece 11 Wall material 12 Wall hole 13 Projection

Claims (4)

(57) [Claims] 1. A wiring box attached from a wall surface to a wall hole in which a part of two or more circular through holes are overlapped and connected, and a contact portion abutting on a peripheral edge of the wall hole; The outer shape corresponds to the shape where two or more circles partially overlap
The formed peripheral wall portion is provided at the center position of each of the circles, and is formed during the perforation of each of the circular through holes.
The interference between the bottom wall portion having a scribing hole for scribing the heart and the protrusion formed on the peripheral edge of the wall hole at the connecting portion of the circular through hole is prevented, and the peripheral wall portion and the bottom wall portion are prevented from interfering with each other. <br/> The peripheral wall and the bottom wall so as to allow insertion into the wall hole.
Wiring box comprising the interference prevention portion formed in part. 2. The apparatus according to claim 1, wherein the interference preventing portion is formed along a circle of the circular through hole.
2. The method as claimed in claim 1, wherein the recess is formed on the inner side.
The wiring box described. 3. The wiring box according to claim 1, wherein the interference preventing portion is formed by removing a part of the outer wall portion. 4. A claim, characterized in that it comprises a clamping piece for clamping the wall material between said contact portion by an operation from the wall table
The wiring box according to any one of claims 1 to 3 .