JP2568543Y2 - Switchboard - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a distribution board.

[Conventional technology]

The distribution board is composed of a box, a front frame attached to a peripheral portion of an opening of the box by pivotally opening and closing an inner lid and a door, and an inner unit having a large number of breakers installed in the frame. When installing the distribution board, the inner unit is once removed and separated from the box, and the box is installed at a predetermined position such as a wall, and then the inner unit is attached to the original position in the box. In this case, it is necessary to arrange the handle of the breaker so as to exactly correspond to the opening provided in the inner lid.

In a conventional distribution board, a frame of an inner unit as shown in FIG. 6 has been used. That is, the upper part of the mounting hole 50 is made elliptical, and can be adjusted up and down within a range of about 3 mm with respect to the box by an adjusting screw (not shown).

[Problems to be solved by the invention]

However, since there is no means for adjusting the inner unit in the lateral direction, there is a problem in that it is difficult to reset the inner unit and the workability is reduced.

Therefore, an object of the present invention is to provide a distribution board which can easily reset the internal unit.

[Means for solving the problem]

The distribution board of this invention has a box in which bolts are erected on the bottom surface, and a frame is arranged on the bottom surface of the box with the bolts inserted through the mounting holes, and side edges of the frame are bent and the surface is bent. And an inner unit fixed to the box by the bolts and having a contact surface fixed to the bottom surface of the box and projecting from the bottom surface, the contact surface being in contact with the back surface of the frame. And, apart from the bolt, a bolt erected on the bottom of the box on both sides of the inner unit, and a mounting hole through which the bolt is inserted and fixed is drilled in a mounting piece substantially parallel to the bottom of the box. A guide that is connected to the mounting piece and has a tapered guide surface that guides both side surfaces of the inner unit formed by side edges of the frame to position the inner unit so as not to be shifted in the lateral direction. It is intended.

[Action]

According to the configuration of the present invention, both sides of the inner unit formed by the side edges of the frame are guided by the taper guide surface of the guide and are positioned so as not to shift in the lateral direction. After the inner unit is once removed for installation, it can be easily reset to the original predetermined position. At this time, the guide is structured so that bolts are inserted into its mounting holes and fixed, so that fine adjustment in the horizontal direction is possible,
It is possible to cope with a case where there is a difference in the width of the inner unit, or a case where the position is shifted due to a structure that requires alignment between the inner unit and an inner lid or the like disposed in front of the unit. In addition, since the guide can be adjusted in this manner, the mounting position is not required to be accurate and can be easily manufactured. In addition, the frame of the internal unit that is positioned by the guide can be temporarily fixed by inserting a bolt different from the bolt that fixes the guide into the mounting hole, and the frame does not fall down to the front, so positioning Work becomes easy and workability improves.

In addition, it is fixed to the bottom of the ridge box, and the abutment surface that contacts the back of the frame is formed at the part protruding from this bottom, so that the frame is supported in a stable state, It is possible to prevent the frame from being displaced to the bottom side of the box by the operation of the mounted breaker or the like.

And, since the inner unit is fixed by the bolts in a state where the inner unit is positioned by the guide as described above, the frame does not shift in the horizontal direction at the time of fixing, and the inner unit falls down toward the front. Since there is no
The fixing operation can be performed safely and easily.

〔Example〕

A distribution board according to an embodiment of the present invention will be described with reference to FIGS.

The distribution board includes an internal unit 1, a box 2 for housing the internal unit 1, and a front frame 3 attached to the front of the box 2. The internal unit 1 has a breaker 5 mounted on the surface of a frame 4. More specifically, as shown in FIG. 4, the frame 4 is formed by connecting two parallel wide frames 6, 6 with connecting plates 7. In this case, the connecting plate 7 is L-shaped, its vertical piece is fitted into a slit provided in the wide frame 6, and its horizontal piece is fixed on the upper surface of the wide frame 6. In order to fix the frame 4 to the bottom of the box 2, the wide frame 6 is provided with mounting holes 8. The mounting holes 8 have a dome shape at the top and an elliptical shape at the others. The breaker 5 includes a main earth leakage breaker 5a and branch circuit breakers 5b. Further, as shown in FIG. 5, a ridge 20 is fixed to the bottom surface of the box 2, and a contact surface 20 a that contacts the back surface of the frame 2 is formed at a portion of the ridge 20 protruding from the bottom surface of the box 2. It is. Side edge 4a of frame 4
Is bent, and the side edge portion 4a of the frame 4 is supported away from the bottom surface of the box 2 in a state where the frame 4 and the ridge 20 are in contact with each other.

Further, bolts 9 are erected on the bottom surface of the box 2 so as to correspond to the mounting holes 8, and the inner unit 1 is attached to a predetermined position on the bottom surface of the box 2. Further, guides 10 for positioning both side surfaces of the inner unit 1 formed by the side edges 4a of the frame 4 are provided. That is,
As shown in FIG. 5, the guide 10 is used for the inner unit 1.
A tapered guide surface 11 for guiding both side surfaces of the box 2 so as not to be shifted in the lateral direction is connected to a mounting piece 10a substantially parallel to the bottom surface of the box 2, and an elliptical mounting hole is formed in the mounting piece 10a. 12 is drilled. And the internal unit 1
By inserting bolts 14 erected from the set portion 13 fixed to the bottom surface of the box 2 on both sides of the
10 can be mounted laterally adjustable. In addition,
Screws (not shown) for adjusting the frame 4 in the vertical direction are attached to the box 2.

The front frame 3 has a door as shown in FIGS.
15 and an inner lid 16 are pivotally attached so as to be freely opened and closed. The inner lid 16 has an opening 18 through which the handle 17 of the breaker 5 is exposed.

Next, at the loading destination, when the inner unit 1 is removed and separated from the box 2 and the box 2 is set at a predetermined position, and then the inner unit 1 is reset, the guide 10
The inner unit 1 is mounted with the taper guide surface 11 as a guide. At this time, both side surfaces of the inner unit 1 are guided by the tapered guide surface 11 of the guide device 10 and are positioned so as not to shift in the lateral direction. Further, since the mounting hole 8 at the upper portion of the frame 4 is formed in a ball shape, the bolt 9 erected on the upper portion with the nut attached can be inserted into the mounting hole 8. For this reason, construction safety is improved. Also, since the inner unit 1 is positioned by the guide 10, the breaker 5
Handle 17 can be made to correspond to the opening 18 of the inner lid 16 without adjustment.

[Effect of the invention]

According to the distribution board of the present invention, since both side surfaces of the inner unit formed by the side edges of the frame are guided by the taper guide surface of the guide and are positioned so as not to shift in the lateral direction, during construction, Once the inner unit has been removed for installation of the box, it can be easily reset to its original predetermined position. At this time, the guide has a structure in which bolts are inserted through the mounting holes and fixed, so that fine adjustment can be made in the horizontal direction. When there is a difference in the width of the inner unit, or when the inner unit is placed in front of the unit. A structure that requires alignment with a lid or the like can cope with the case where the position is misaligned.
In addition, since the guide can be adjusted in this manner, the mounting position is not required to be accurate and can be easily manufactured. In addition, the frame of the internal unit that is positioned by the guide can be temporarily fixed by inserting a bolt different from the bolt that fixes the guide into the mounting hole, and the frame does not fall down to the front, so positioning Work becomes easy and workability improves.

In addition, the ridge is fixed to the bottom surface of the box, and a portion protruding from the bottom surface is formed with a contact surface that is in contact with the back surface of the frame, so that the frame is supported in a stable state,
In use, the frame can be prevented from being displaced toward the bottom surface of the box by the operation of a breaker mounted on the surface of the frame.

And, since the inner unit is fixed by the bolts in a state where the inner unit is positioned by the guide as described above, the frame does not shift in the horizontal direction at the time of fixing, and the inner unit falls down toward the front. Since there is no
The fixing operation can be performed safely and easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a door of a distribution board according to an embodiment of the present invention is closed, FIG. 2 is a perspective view showing a state in which the door is opened, and FIG.
The figure is a partially cut-away simplified perspective view of the state where the frame of the inner unit is mounted in the box, FIG. 4 is a perspective view of the frame,
FIG. 5 is a perspective view of a main part, and FIG. 6 is a schematic view of a frame of a conventional inner unit. DESCRIPTION OF SYMBOLS 1 ... Internal unit, 2 ... Box, 4 ... Frame, 4a ... Side edge part, 5 ... Breaker, 8 ... Mounting hole, 9
... Bolt, 10 ... Guide, 10a ... Mounting piece, 11 ... Tapered guide surface, 12 ... Mounting hole, 14 ... Bolt, 20 ... Protrusion, 20a ... Contact surface

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuji Hirai 1048 Odakadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A box in which bolts are erected on a bottom surface, and a frame is arranged on the bottom surface of the box with the bolts inserted through mounting holes, and a side edge of the frame is bent and a breaker is provided on the surface. An inner unit that is mounted and fixed to the box with the bolt, a ridge that is fixed to a bottom surface of the box and has a contact surface protruding from the bottom surface formed with a contact surface that contacts the back surface of the frame; Separately, a bolt erected on the bottom of the box on both sides of the inner unit and a mounting hole through which the bolt is inserted and fixed are drilled in a mounting piece substantially parallel to the bottom of the box, and A power distribution panel comprising: a guide tool provided with a taper guide surface, which is formed by a side edge portion and guides both side surfaces of the inner unit so as to be positioned so as not to shift laterally, to the mounting piece.