JPH05122810A - Shaft board - Google Patents

Abstract

PURPOSE:To provide a shaft board which can be carried in with reduced manpower and in which wiring and maintenance/inspection can be facilitated. CONSTITUTION:The shaft board is constituted of a back plate part 1, upper and lower frame parts 2, 3, a wiring duct 4, a protective board 5, and a duct cover 6. Inner units such as a main breaker and branch breakers are fixed to the back plate part 1 and wired by means of conductive bars. The upper frame part 2 is secured to the upper end of the back plate part 1 whereas the lower frame part 3 is secured to the lower end of the back plate part 1. The wiring duct 4 is resin molded to have U-shaped cross-section and open front and upper/lower end faces and the wiring duct 4 is secured with screws to the front of each back plate part on the opposite sides thereof. The protective board 5 is made of a metal board and disposed between the ducts 4 on the opposite sides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft board.

[0002]

2. Description of the Related Art Conventionally, a shaft board installed in an electric room is
An internal device such as a breaker was housed and arranged in a box-shaped panel body manufactured in advance in the factory, and in that state, it was carried to the installation site for on-site construction.

[0003]

The conventional shaft board as described above requires a large amount of manpower since it is heavy to carry in, and since the board body has a box-like fixed shape, it is troublesome for on-site wiring. There was a problem that it took. The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a shaft board which requires less manpower at the time of carrying in, wiring work, and maintenance and inspection of wiring can be easily performed. is there.

[0004]

In order to achieve the above-mentioned object, the invention according to claim 1 is arranged such that a back plate portion in which an internal unit is arranged and upper and lower positions of the front surface of the back plate portion are arranged. Lower frame part,
Front opening ducts provided on both sides of the front surface of the back plate portion between the upper and lower frame portions, respectively, and a protective plate for the internal unit provided on both side ducts and at a portion surrounded by the upper and lower frame portions. , A lid detachably attached to the front opening of the duct.

According to the second aspect of the invention, the front surface and the upper surface of the upper frame portion can be opened. In the invention according to claim 3, a frame in which the back plate portion is arranged in parallel on both sides,
It is composed of electric wire support rails with a substantially U-shaped cross section that are fixed to the upper and lower front surfaces of the both side frames so as to bridge the both side frames, and the electric wires that are wired in the vertical direction are inserted and supported on the electric wire support rails. A support metal fitting having a support ring whose diameter can be freely reduced is locked.

[0006]

According to the first aspect of the invention, since the back plate portion, the protection plate, the duct, and the upper and lower frame portions can be disassembled, the weight of each member is reduced when carrying in. Therefore, a small amount of manpower is required, and the duct can also serve as the side wall of the board, and the inside of the board can be sealed together with the upper and lower frame portions.

Further, since the front opening can be formed by removing the lid of the duct, the wiring construction and the wiring maintenance can be easily performed. According to the invention described in claim 2, since the front surface and the upper surface of the upper frame portion can be opened further, the electric wire sent from above at the time of wiring construction is ducted by using the front opening of the upper frame portion. Since it can be stored inside from the front, the construction can be performed more easily than when it is inserted into the wire insertion hole and pulled into the panel.

According to the third aspect of the present invention, the back plate portions are arranged in parallel on both sides, and the cross-sections are substantially fixed to the upper and lower front surfaces of the both side frames so as to bridge the two side frames. Since it is configured with a wire-shaped electric wire support rail, when carrying the back plate with the internal unit attached,
Since the back plate can be lifted by holding the wire support rail with hand, the workability of transportation is improved, and the strength of the back plate is also reinforced by the wire support rail. Further, since a thick electric wire connected to a main breaker or the like can be held by the support ring of the support fitting, the electric wires can be easily bundled, the electric wires are not damaged during construction, and safety can be secured.

[0009]

EXAMPLES The present invention will be described below with reference to examples. FIG. 1 shows an exploded perspective view of the whole of this embodiment. As a basic configuration, a back plate portion 1, upper and lower frame portions 2 and 3, a duct 4 for wiring, a protective plate 5, and a duct 4 are shown. And a lid 6.

As shown in FIG. 2, the back plate portion 1 is fixed to a wall surface on which an electric room or the like is attached by using fixing plates 21 provided on both sides of the upper end thereof, and has a cross section of a substantially cross section as shown in FIG. Two U-shaped metal frames 7 are arranged in parallel, and the upper and lower frames 7 and 7 are fixed by bridging the metal wire support rails 22 and 22 between the frames 7 and 7. As shown in FIG. 5, the metal bottom plate 26 is passed over and fixed.

The back plate portion 1 constructed as described above is provided with metal inner unit mounting bases 24 on both sides of the central portion, and a metal mounting plate 25 is disposed between the mounting bases 24, 24. Then, an internal unit such as a main breaker 8a or a branch breaker 8b is mounted on the mounting plate 25, and wiring is connected by a conductive bar. The upper frame part 2 includes both side frames 7 of the back plate part 1,
Metal side plates 9 mounted and fixed on the upper end of the front surface of the frame 7 so that their outer surfaces are substantially flush with the outer surface of the frame 7, and fixed by screws 11 between the upper surfaces of the side plates 9, 9 on both sides. It is composed of a top plate 10 that closes the top opening, and a front plate 13 that is fixed between the front surfaces of the side plates 9 and 9 on both sides with screws 12 to close the front opening.

The lower frame part 3 includes the both side frames 7 of the back plate part 1,
7. A metal side plate 14 is mounted and fixed on the lower end portion of the front surface of 7 such that its outer surface is substantially flush with the outer surface of the frame 7, and a screw is fixed between the front surfaces of the side plates 14 on both sides to open the front surface. And a front plate 15 that closes the The wiring duct 4 has a U-shaped cross section and is made of a resin molded product having a front surface and upper and lower end surfaces opened, and the outer surface of the frame 7 and the outer surface of the outer side piece are provided on the front surface portions of the both side frames 7 of the back plate portion 1. The screws are fixed so that they are substantially flush with each other. A large number of notches 16 are provided on the inner side piece of the duct 4 so that the electric wire can be introduced into and taken out of the duct 4.

A lid 6 is detachably attached to the front surface of the duct 4 so that the front opening can be closed. The lid 6 is attached to the duct 4 because both side edges are bent. In this case, the front end of the outer piece of the duct 4 is fitted and press-fitted to the inner surface side of the outer bent piece while the front end of the inner side piece of the duct 4 is locked to the inner surface of the inner bent piece.
If this attachment work is started by locking the outer piece of the duct 4, the bent piece of the lid 17 will be inserted in the notch 16 of the inner piece, and the front end of the inner side piece of the duct 4 will be completely bent at once. May not fit into.

The protective plate 5 is made of a metal plate and is arranged between the ducts 4 on both sides. The protective plate 5 is provided with holes 17 and 18 through which the operating handle of the internal unit is projected to the outside.
This is for exposing the operation handle and the like to the outside, and at the same time closing the front opening of the space surrounded by the upper and lower frame portions 2 and 3 and the ducts 4 and 4. In the embodiment, the upper and lower two sheets are provided. Is divided into The upper protection plate 5 has its upper end portion extended from the lower end of the front plate 13 of the upper frame portion 2 and is attached to the front plate 13.
Is mounted on a mounting piece 13a whose front surface is located slightly rearward of the front surface of the back surface of the back plate 1 and fixed by a screw 19, and the lower end is mounted on the upper half of a fixed base 20 arranged in the center of the front surface of the back plate 1. Then, it is fixed by the screw 19.

Further, the lower protection plate 6 has a lower end portion provided with a lower frame portion 3.
Mounted on a mounting piece 15a extending from the upper end of the front plate 12 and positioned slightly rearward of the front face of the front plate 15 and fixed by a screw 19, and the upper end is mounted on the lower half of the fixed base 20. It is placed and fixed by the screw 19. As shown in FIG. 4, the parts such as the operation handle of the inner unit projecting forward from the hole 18 are covered with the front and upper surfaces of the lids 6, 6 attached to the ducts 4, 4 on both sides, and the upper and lower frame portions 2, 3. Front plates 13, 15
Will not be projected forward from the front of the car, and will be protected.

Each protective plate 6 has a handle 27 on the front surface on each side.
Is installed. By the way, the electric wire support rail 22 has a U-shaped cross section and is bent so that the front surface and both end portions are open, and the front ends of the both side pieces face inwardly facing each other. ), The support metal fitting 23 shown in (b)
It becomes a groove for locking the T-shaped base portion 23a. Support bracket 23
Has the T-shaped base portion 23a at one end and the screw fastening portion 2 at the other end.
3b is provided, and two split metal fittings 23d each having a semi-support ring 23c formed at the intermediate portion between the two 23a and 23b are overlapped with each other. The T-shaped base portion 23a is inserted from the end of the groove of the rail 22 and moved to an appropriate position, and the semi-support ring 2
The wires wired in the up-down direction are inserted into the support ring made of 3c, and the wires are supported by reducing the diameter of the support ring with the fastening screws screwed to the screw fastening portions 23b, 23b.

This support fitting 23 is, for example, the main breaker 8
It is suitable for bundling extremely thick electric wires that are connected to a, and by bundling, it is possible to prevent damage to the wire coating, ensure quality, and ensure safety. Thus, FIG.
As shown in FIG. 5, each member is carried in the disassembled state to the site, assembled, and wired to complete the construction in the electric room.

FIGS. 6 and 7 are a front view and a side view of the shaft disc of the present invention assembled and completed by on-site construction.

[0019]

According to the first aspect of the present invention, the back plate portion in which the internal unit is disposed, the upper and lower front portions of the back plate portion, the lower frame portion, and the front plate both sides of the back plate portion , Front opening ducts respectively arranged between the lower frame portions, both side ducts, the protective plate of the internal unit arranged in the upper and lower frame portions, and the front opening openings of the ducts. Since it consists of a lid that can be freely attached, the back plate part, the duct, and the upper and lower frame parts can constitute the box part by configuring the back plate, side plates, and upper and lower plates of the board, respectively. Since the main body is not required and it can be disassembled into each part, it is possible to carry in individual parts that are light in weight, so it can be carried in with a small number of people.If the lid of the duct is removed, it will be the front opening, so wiring work and The effect is that maintenance and inspection of the wiring can be performed easily.

According to the second aspect of the present invention, since the front surface and the upper surface of the upper frame portion can be opened, the electric wire sent from above at the time of wiring work is ducted by utilizing the front opening of the upper frame portion. Since it can be stored inside from the front, there is an effect that the construction can be performed more easily than when it is inserted into the wire insertion hole and pulled into the panel. According to a third aspect of the present invention, the back plate portion has a frame arranged in parallel on both sides, and a wire supporting rail having a substantially U-shaped cross section in which both side frames are fixed to the upper and lower front surfaces of the both side frames so as to bridge each other. With the above-mentioned electric wire support rail, a supporting metal fitting having a freely reducing diameter supporting ring for inserting and supporting an electric wire to be vertically wired is locked, so that the back plate portion with the internal unit attached When transporting, it is possible to raise the back plate by holding the wire support rail and raising the workability,
In addition, the strength of the back plate is strengthened by the wire support rails, and the thick wires that connect to the main breaker etc. can be held by the support ring of the support metal fittings. There is an effect that safety and high quality can be secured without damaging the electric wire.

[Brief description of drawings]

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

FIG. 2 is a perspective view of an embodiment of the present invention.

FIG. 3 is a perspective view of a back plate portion according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view of one embodiment of the present invention.

FIG. 5A is an exploded perspective view of a support fitting according to an embodiment of the present invention. (B) is sectional drawing which shows the use condition of the support metal fittings of one Example of this invention.

FIG. 6 is a front view of an embodiment of the present invention.

FIG. 7 is a side view of an embodiment of the present invention.

[Explanation of symbols]

 1 Back plate part 2 Upper frame part 3 Lower frame part 4 Duct 5 Protective plate 6 Lid

Claims (3)

[Claims] 1. A back plate portion for arranging an internal unit, an upper and lower frame portion arranged at upper and lower positions on the front surface of the back plate portion, and a front plate and a lower frame portion respectively on both front surfaces of the back plate portion. A duct having a front opening provided therein, a protective plate for the internal unit disposed at both side ducts, a portion surrounded by the upper and lower frame portions, and a lid detachably attached to the front opening of the duct Shaft board characterized by consisting of. 2. The shaft board according to claim 1, wherein the front surface and the upper surface of the upper frame portion can be opened. 3. The back plate portion comprises a frame arranged parallel to each other on both sides, and an electric wire support rail having a substantially U-shaped cross section, which is fixed to both upper and lower front surfaces of the both frame in a bilateral direction so as to bridge the both frames. 2. The shaft board according to claim 1, wherein a support metal having a support ring for inserting and supporting an electric wire to be vertically wired is engaged with the electric wire support rail.