JPS6038309Y2 - box body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a panel-assembled box used in a closed switchboard, etc., and relates to a connection structure between a floor plate and a side plate.

Generally, closed switchboards, which consist of multiple panels in a row, are assembled in advance at a factory and mechanically and electrically tested before being transported to the site.

In this case, for reasons of transportation, the closed switchboard is shipped in parts, one or two sides at a time, rearranged on site, and then assembled by tightening to the foundation base.

In this case, the work of arranging the boxes on-site is done by rolling, etc.
Place the box on the basic base, make fine adjustments with a crowbar, etc.
A method is used in which the panels are placed side by side with the adjacent boxes.

Figure 1 shows the conventional problems with such closed switchboards.
This will be explained using FIGS. 2 and 3.

FIG. 1 is a perspective view showing both the assembled and disassembled configurations of the panel-assembled box, in which the box 1 is composed of a floor plate 2, a ceiling plate 3, a right side 4, and a left side 5. It shows.

If there is no bulge in the box body 1, there will be no problem when arranging the panels, but generally this type of panel assembly type
As shown in the figure, bulges tend to occur.

For example, when the side surface of the box body 1a bulges outward as shown in the figure, it contacts the adjacent box body 1b at the left side plate 5, but there are gaps A, A between the floor plates 2 and between the ceiling plates 3.
' occur respectively.

Then, if it is connected integrally with the adjacent panel 1b as it is, the third
It will look like the figure.

That is, the floor plate 2 is provided with screws 7 as shown in FIG. 1, and the bent part of the left side plate 5 is provided with a hole 8. The floor 2 and the left side plate 5 are assembled together by tightening them.

Here, the hole 68 provided on the left side plate 5 is provided with a hole larger than the outer diameter of the screw 7 of the floor plate 2 in order to absorb dimensional errors.

Therefore, when the holes 6 for connecting the box bodies shown in FIG. 1 are tightened with bolts or the like in a bulging state as shown in FIG. As shown in FIG. 3, even if only the floor plate 2 is left and the left side plate 5 is completely connected to the adjacent panel 1b, the floor plate 2 will slip.
Gap B remains.

In other words, the floorboard 2 is positioned deviating from the correct installation position by a gap B.

In this case, the holes 9 for tightening the foundation base provided in the floor plate 2 are double-circle holes, so if there are several panels in a row, the above-mentioned dimensional difference can be absorbed, but if there are ten or more panels in a row, the holes 9 are double-circular holes. 9, the hole 9 in the floorboard 21 and the nut provided on the foundation base did not match, causing a problem in that the space between them could not be tightened.

The purpose of the present invention is to provide a box body that eliminates slippage between the floor plate and side plates and eliminates displacement of the floor plate relative to the foundation base when the boards are stacked side by side.

The present invention will be explained below using an embodiment shown in FIG.

Note that parts corresponding to those in FIG. 1 will be described with the same reference numerals.

FIG. 4 is a perspective view of the floor plate and side plate that constitute the box.

The floor plate 2 is provided with screws 7 and round holes 9 as conventionally.

Bosses 10 are provided at the four corners of the floorboard 2, and their installation positions are determined as follows.

In other words, in the depth direction of the box body, it is on the extension line of the panel hole 6 provided in the left side plate 5 to the floor plate 2, and in the width direction, it is the same as the screw 7 that tightens the left and right side plates onto the floor plate 2. set in position.

The left side plate 5 is provided with a hole 6 for a conventional row board and a hole 68 for connection with the floor plate 2, and a boss 10 provided on the floor plate 2.
A notch 11 is provided which engages with.

As shown in FIG.
Set the dimensions so that it touches and locks the outer periphery of the

Note that the dimensions of the notch 11 in the depth direction (vertical direction in the drawing) are as follows:
The diameter is larger than that of the boss 10, so that even if a dimensional error occurs, it can be absorbed.

In the above configuration, the side plates of the box bodies are bulging, and in this state, when the side plates 5 of adjacent box bodies are integrally tightened and fixed through the row board holes 〇, the side plates of the side plates bulge out. The bent portion of the lower end of the face plate 5 receives a force outward toward the adjacent side plate.

Therefore, the bent portion of the lower end of the side plate 5 tends to slide outward on the floor plate 2.

However, the notch 11 formed in the bent part of the side plate 5 is
Since it is locked to the upper boss 10, the above-mentioned slipping does not occur, and the floor plate 2 is integrated with the side plate 5, so that the gap B shown in FIG. 3 of the movable waistband does not occur.

In this way, since the boss 10 and the notch 11 of the side plate 5 are in contact with each other, there is no slipping when arranging the plates, and when assembling, it is only necessary to assemble the boss 10 and the notch 11 of the side plate 5 so that they are in contact with each other. This eliminates the need for dimension adjustment in the width direction, making assembly easier.

Furthermore, since the boss 10 is provided with a boss for the hole for stacking plates, it can be said that it is most effective against tension during stacking.

Note that the same applies to the right side.

As described above, according to the present invention, a box body that can be easily connected to a foundation base without any dimensional deviation when the panels are lined up can be obtained.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the assembled and disassembled configuration of a typical conventional panel assembly type box, Figure 2 is a front view showing the box in a bulging state during boarding, and Figure 3 is a side plate. FIG. 4 is a perspective view showing an embodiment of the box body according to the present invention with a floor plate and side panels, and FIG. 5 is a sectional view taken along the line V--■ in FIG. 4. 1... Box body, 2... Floor board, 5...
...Left side plate, 6...Hole for row board, 10...
...Boss, 11...Notch.

Claims (1)

[Scope of utility model registration request] In a box body constructed by combining both side panels with a ceiling panel and a floor panel, a boss installed on the floor panel that is an extension of a connecting hole for a row of panels provided in the both side panels during assembly, and a boss of the both side panels. A notch is formed along the width direction of the lower end bent portion from the outer surface of both side panels at a portion of the lower end bent portion that is in contact with the floorboard and faces the boss, and the notch is sized to loosely fit into the boss. and the bottom portion thereof is dimensioned so as to contact the outer periphery of the boss and prevent the both side panels from sliding outward of the floor panel when the both side panels and the floor board are in a predetermined arrangement relationship. Box body.