JPH0112494Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fireproof plate for a wiring equipment mounting device.
More specifically, the present invention relates to a fireproof board used for interior fire protection in a wiring equipment mounting device for mounting wiring equipment such as switches and outlets to walls and the like.

From the perspective of interior fire prevention, there is a demand for wiring fixture mounting devices to be made incombustible, but this is because if the resin material of the wiring fixture mounting devices melts in the early stages of a fire, the gaps inside the wall can act like chimneys. None, as this may cause the fire to spread further.

Conventional wiring equipment mounting devices with fireproof specifications usually have a decorative board made of a metal plate such as stainless steel, or a metal box that is attached to surround the back side of the wiring equipment within the wall. Ta. However, if the decorative board is made of a metal plate, it has a strong impression of being a mechanical part, so it is not suitable for general housing, and it cannot be made into an inset type like when using a resin board. Because of this, they are usually attached with screws, and these screws are exposed on the indoor side, further reinforcing the impression that they are mechanical parts. In addition, those that use a metal box are not only expensive, but also require the metal box to be attached to the panel core material, which limits the mounting position of wiring devices, and requires the relocation of lead pipes. It was not easy to install and operate.

An object of the present invention is to provide a fireproof board for a wiring equipment mounting device that can be easily applied to wiring equipment mounting devices for general homes, is easy to install, and can be manufactured at low cost.

The present invention is made of a fire-resistant material such as a metal plate or a noncombustible resin plate, and has a wiring device insertion hole drilled therein, and overlaps the entire circumference around the opening of the wall hole for installing the wiring device. A fireproof plate that can be combined is placed on the back side of the decorative board of the wiring equipment mounting device, that is, in a position that is not visible from the outside, and the fireproof board is installed so as to close or substantially close the wall hole for mounting the wiring equipment. , which aims to achieve the above objective.

Hereinafter, embodiments of the present invention will be described based on the drawings.

1 and 2 show a wiring equipment mounting device to which the first embodiment of the fireproof plate for wiring equipment mounting equipment according to the present invention is applied, and in these figures, wall panels 1 are arranged at predetermined intervals. The panel board 2 is made up of a panel board 2 arranged parallel to each other and a panel core material 3 arranged to connect the panel board 2.
A lead pipe 4 is disposed in between while being supported by the panel core material 3.

A rectangular wall hole 11 for mounting a wiring device is bored at a predetermined position of the panel board 2 by applying a paper pattern and cutting out the panel board 2. The wall hole 11 is formed on the indoor side (on the left side in FIG. 2) to be slightly larger than the wall hole 11, so that the wall hole 11 is formed around the entire circumference.
A fireproof board 12 that can be overlapped is arranged around the opening of the wall, and the wall hole 11 is closed by the fireproof board 12.

As shown in FIG. 3, the fireproof plate 12 is formed into a rectangular plate shape and is made of a fireproof material such as a metal plate or a nonflammable resin plate. Fireproof board 12
In the upper and lower ends of the figure, a frame mounting screw insertion hole 13, a support mounting screw insertion hole 14, and a mounting bracket insertion hole 15 are drilled from both ends toward the center, respectively. Further, a perforation 16 is formed in the center of the fireproof plate 12. The perforation 16 defines three rectangular contours of the same shape that are adjacent to each other in the vertical direction in FIG. There is. By cutting out the central part of the fireproof plate 12 along the perforation 16, one or more wiring device insertion holes are provided.
In the fireproof plate 12 shown in the figure, two wiring device insertion holes 17 are provided.

Further on the indoor side of the fireproof board 12, a wiring device support 21 formed in a substantially rectangular frame shape is arranged.
Support mounting screw insertion port 2 of wiring device support 21
A cap screw 23 is inserted into the cap screw 2 from the indoor side.
The fireproof board 12 and the wiring fixture support 21 are fixed to the panel board 2 by tightening them. Note that the reference numeral 27 in FIG. 1 is a presser metal fitting insertion hole;
The claw 2 of the presser metal fitting 24 is inserted into this presser metal fitting insertion opening 27.
4A is inserted and hooked onto the support body 21.

Two switch boxes 31 as wiring devices are fixedly supported on the central mounting portion 25 of the wiring device support 21.
The rear side thereof extends by a predetermined length toward the rear side of the rear panel board 2 that has been inserted through the wiring device insertion hole 17. In addition, the wiring 30 of the switch box 31
is connected within the wall panel 1 to the conducting wire 33 guided from within the lead pipe 4.

Further on the indoor side of the wiring device support 21 is a frame 34.
is located. This frame body 34 is made of resin or the like in the shape of a rectangular frame, and is screwed and fixed into the mounting screw hole 26 of the wiring device mounting support 21 via a mounting screw 35 inserted through a mounting hole 39 . Further, the periphery of the frame 34 on the panel board 2 side is in contact with the panel board 2 over the entire circumference, and the outer periphery of the wiring device support 21 and the fireproof board 12 is completely surrounded by the frame 34. .

A recess 34A is provided on the indoor side surface of the frame 34 along the outer circumferential shape of the frame 34, and a resin decorative board 36 is fitted into the recess 34A. The decorative board 36 has a claw member 37 integrally formed at a predetermined position on the back side, and this claw member 37
The decorative board 36 is removably attached to the frame body 34 via. Two square-shaped windows 38 are provided at predetermined positions on the decorative board 36 for the switch box 3.
The front surface of the switch box 31 is exposed to the indoor side through this window portion 38. In addition, when the decorative board 36 is attached to the frame 34, the support 21
The fireproof board 12 is completely invisible from the indoor side.

According to this embodiment, the wiring equipment mounting device is constructed of a fireproof plate 12 made of a fireproof material and formed so as to be overlapped with the opening periphery of the wiring equipment mounting wall hole 11 over the entire circumference. Since fire prevention is achieved in the interior, even if the decorative board 36 and the frame body 34 are made of resin, there is an effect that the requirements for interior fire prevention can be satisfactorily met. Therefore, it has become easy to use a wiring fixture mounting device that has an appearance suitable for general residences and also has fire resistance.

Further, since a metal box or the like is not used, the mounting position is not limited and the mounting operation can be made easy.

Furthermore, compared to the case where a metal box is used, and even when a metal plate made of stainless steel or the like is used as a decorative board, the appearance of the fireproof board 12 is not required to be aesthetically pleasing in terms of interior decoration. There is no need to have gloss or the like, and therefore it can be manufactured at low cost.

Furthermore, since the fireproof plate 12 can be easily applied as is to conventional wiring equipment mounting devices,
It has the effect of being extremely useful. Moreover,
Wiring device insertion holes 17 can be easily provided at appropriate locations along the perforations 16. In other words, the fireproof plate 12 can be used in any case where one to three switchboxes 31 are provided, making it more versatile. Highly sexual.

In the above-described embodiment, the fireproof board 12 was assumed to be supported between the wiring device support 21 and the panel board 2, but as shown in FIG. The wiring device support 21 may be held between the board 12 and the panel board 2. Furthermore, as shown in FIG. 5, a fireproof plate 12 may be provided on the back side of the panel board 2. In either case, it is desirable that the fireproof board 12 closes the wall hole 11 for mounting wiring equipment, but it is not necessary to completely block it, and A slight gap or the like that occurs between the two is tolerable, and if it is substantially closed, the requirements for interior fire protection can be fully met.

In addition, perforations 16 are formed in the fireproof plate 12, and the perforations 16 allow wiring device insertion holes 17 to be provided at appropriate locations. 1
7 may be punched out. however,
In the case of a fireproof plate 12 like that shown in FIG. 3, the perforations 16 can be formed at the same time when the fireproof plate 12 is manufactured by pressing or the like, and it is extremely difficult to provide the perforations 16. It's easy. Therefore, if the perforations 16 are provided, not only will the versatility be further increased, but the number of fireproof plates 12 will be reduced compared to the case where fireproof plates 12 having different numbers of wiring device insertion holes 17 are manufactured separately. The unit price can be further reduced, and it is convenient for the installation worker.

Further, as in the second embodiment shown in FIG. 6, the outer peripheral edge of the fireproof board 112 is bent toward the panel board 2 side, and the entire fireproof board 112 is formed into a substantially shallow rectangular tray shape. It may be something. In this second embodiment, the fireproof plate 112 is attached to the back surface of the frame 34, and the outer peripheral edge of the fireproof plate 112 is attached to the panel board 2 along the inner peripheral surface of the frame 34. It reaches the side surface of the indoor side and can be overlapped around the opening of the wall hole 11 over the entire circumference to close the wall hole 11, thereby fully ensuring the effectiveness of interior fire protection. .

Furthermore, although the fireproof plate 12 and the wiring device support 21 are provided separately and independently, as in the third embodiment shown in FIG. In other words, the fireproof plate 212 may also serve as a wiring device support.

As mentioned above, according to the present invention, it can be easily applied to wiring equipment mounting devices for general homes, and
The present invention has the effect of providing a fireproof board for a wiring equipment mounting device that is easy to install and can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing a wiring equipment mounting device to which a first embodiment of the fireproof plate for wiring equipment mounting equipment according to the present invention is applied, and FIG. 2 is an enlarged sectional view of the wiring equipment mounting device in an assembled state. , FIG. 3 is a front view showing the shape of the first embodiment, FIGS. 4 and 5 are sectional views of main parts showing different usage modes of the first embodiment, and FIGS. FIG. 7 is a sectional view of a main part showing the second and third embodiments, respectively. DESCRIPTION OF SYMBOLS 1...Wall panel, 2...Panel board, 3...Panel core material, 4...Lead pipe, 11...Wall hole for mounting wiring equipment, 12, 112, 212...Fireproof plate for wiring equipment mounting device, 16... Perforation, 17... Wiring device insertion hole, 21... Wiring device support, 24...
Holder metal fitting, 31... switch box as a wiring device, 34... frame body, 36... decorative board.

Claims (1)

[Scope of utility model registration request] It is made of a fire-resistant material, has a wiring device insertion hole, is formed so that it can be overlapped with the opening periphery of the wall hole for wiring device installation over the entire circumference, and is also made of a decorative material for the wiring device mounting device. 1. A fireproof board for a wiring equipment mounting device, characterized in that the board is arranged on the back side of the board so as to close or substantially close the wall hole.