JP2001025114A - Inner machine mounting structure for distribution panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a simple structure and reduce the number of parts by forming a plurality of bolt inserting holes in internal machine fixing hardware mounted detachably near the end of a rail at appropriate pitches, and clamping and fixing a bolt by means of an insertion nut. SOLUTION: A screw hole 5, formed in internal machine fixing hardware 4, is made to face a bolt inserting hole 7 formed in a rail 3, and a screw is inserted and screwed to connect the internal machine fixing hardware 4 to the rail 3, and an internal machine is mounted on a housing body with the rail 4. A bolt 1 is inserted into the bolt inserting hole 7 in the inner machine fixing hardware 4, in matching with the pitch of the bolt 1 formed in the housing body to be clamped and fixed by means of a nut. Accordingly, the need for preparing sizes appropriate for the pitches is eliminated to save labor for parts control extensively, and assembly of a distribution panel is facilitated because the internal machine fixing hardware can be mounted easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for changing the mounting pitch of an inner unit of a distribution board, wherein the inner unit is fixed with a panel on which electric devices are mounted on rails.

[0002]

2. Description of the Related Art In a conventional distribution board, a bolt 21 is provided inside a box body.
As shown in FIG. 5, the rail 22 was passed. The panel 24 on which the device 23 is mounted is attached to the rail 22.

Further, as shown in FIG. 6, a bolt 32 is provided inside a box body 31, and a metal fitting 33 whose mounting pitch can be changed is attached to the bolt 32. The metal fitting 33 is bent in a substantially U-shaped cross section. A bolt insertion hole 34 is provided on one surface of the metal fitting 33 so as to face a bolt 32 provided on the box body 31, and a rail is provided on the other surface. A bolt (not shown) for passing the bolt is set up, and an internal unit mounting bracket 35 is attached. The position of the internal unit mounting bracket 35 is changed by selecting a bolt insertion hole 34 through which the bolt 32 is inserted. Because it was possible, it was possible to change the mounting pitch.

[0004]

However, according to the prior art shown in FIG. 5, the mounting pitch of the rails 21 is determined in accordance with the pitch of the bolts provided on the box body, and for each pitch. Since the size of the panel 23 is changed, parts are required for each mounting pitch of the rails even though the panels are used for the same purpose, which requires a great deal of labor for parts management and increases the manufacturing cost.

Further, according to the prior art shown in FIG. 6, there is a disadvantage that the assembling operation takes time. In addition, when the inner body is attached after the box body 31 is first attached to the site, there is a possibility that the inner machine cannot be attached only due to a difference in the attachment pitch.

[Means for Solving the Problems]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide an inner structure of a distribution board which has a simple structure and a reduced number of parts. An inner machine fixing bracket that is removably attached to the vicinity of the unit, and a plurality of bolt insertion holes arranged side by side at an appropriate pitch to insert bolts into the inner machine fixing bracket, insert bolts into the bolt insertion holes, and tighten and fix with nuts It is to be.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A panel on which electric equipment is mounted is screwed to a rail to form an inner machine. A plurality of bolt insertion holes are provided, and a screw hole of an inner machine fixing bracket having a screw insertion hole for mounting on a rail is opposed to a screw insertion hole provided on the rail, and tightened with a screw. Bolts are erected at least in the vicinity of the four corners inside the box body. Bolt insertion holes of the internal unit fixing bracket are selected according to the pitch of the bolts, the bolts are inserted, and tightened and fixed with nuts.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to FIGS.

In the distribution board according to the present invention, bolts 1 are provided near at least four corners on the rear surface inside the box body, and an inner machine mounting bracket 2 is welded near the bolts 1. The inner machine in a state where the panel on which the electric equipment is mounted is fixed to the rails 3 arranged in parallel is configured as a distribution board.

The inner machine fixing bracket 4 has a screw hole 5 opposed to a screw insertion hole 4 provided in the rail 3 and a plurality of bolt insertion holes 6.

Screw hole 5 provided in inner machine fixing bracket 4
The screw 7 is inserted and screwed to face the screw insertion hole 4 provided in the rail 3, and the inner machine fixing bracket 4 is connected to the rail 3. The inner machine is attached to the box body together with the rail 3. The bolt 1 is inserted into the bolt insertion hole 6 of the inner machine fixing bracket 4 attached to the rail 3 and conforming to the pitch of the bolt 1 provided on the box body.

As shown in FIG. 3, the inner unit fixing bracket 1 is attached to both the left and right sides, so that the mounting pitch of the inner unit can correspond to at least three types of A, B, and C.

The inner-unit fixing bracket is not limited to the above-described shape. As shown in FIG. 4, an inner-unit fixing bracket 12 provided with a plurality of bolt insertion holes 11 is integrally formed on a rail 13 to form a box. It may be adapted to the pitch of the bolts provided inside the body, and may be changed as appropriate without departing from the spirit of the present invention.

[0014]

As described above, the internal unit mounting structure for a distribution board according to the present invention has an internal unit fixing bracket detachably mounted near the end of a rail and a bolt inserted into the internal unit fixing bracket. A plurality of bolt insertion holes arranged side by side at an appropriate pitch are provided,
Since the bolt is inserted into the bolt insertion hole and tightened with a nut, the internal unit can be fixed regardless of the mounting pitch of the bolt and the existing mounting bracket on the box body. There is no need to prepare a size corresponding to the mounting pitch like
The manufacturing cost can be reduced, and the trouble of parts management can be greatly reduced. Further, it is possible to change the box body after the inner machine is completed. Since the fixing of the inner unit fixing bracket can be easily performed, the work of assembling the distribution board can be easily performed. Even if you notice that the mounting pitch is different after attaching the box body to the site first, it can be dealt with without replacing the box body only by attaching the inner unit fixing bracket.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an inner unit mounting structure of a distribution board according to the present invention.

FIG. 2 is an explanatory view showing an inner unit mounting structure of a distribution board according to the present invention.

FIG. 3 is an explanatory view showing an inner unit mounting structure of the distribution board according to the present invention.

FIG. 4 is an explanatory view showing a second embodiment of the internal structure of the distribution board according to the present invention.

FIG. 5 is an explanatory view showing a structure for attaching an inner unit of a distribution board in a conventional technique.

FIG. 6 is an explanatory view showing a structure for attaching an inner unit of a distribution board in a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bolt 2 Inner unit mounting bracket 3 Rail 4 Inner unit fixing bracket 5 Screw hole 6 Bolt insertion hole 7 Screw 8 Nut 9 Nut 11 Bolt insertion hole 12 Inner unit fixing bracket 13 Rail

Claims (1)

[Claims] 1. A distribution board comprising: an inner unit having a panel on which electric devices are mounted mounted on rails arranged in parallel with bolts provided at least in the vicinity of four corners on the back surface inside the box body. A structure for changing a mounting pitch of the inner unit, wherein the inner unit fixing bracket is detachably mounted near an end of the rail, and a plurality of the inner unit fixing brackets are arranged at an appropriate pitch to insert the bolt through the inner unit fixing bracket. The inner mounting structure of the distribution board, wherein a bolt insertion hole is provided in parallel, and the bolt is inserted into the bolt insertion hole and fastened with a nut.