JPH0132380Y2 - - Google Patents

Description

[Detailed description of the invention] Field of the invention This invention relates to the structure of a box-shaped panel frame used for switchboards, collective starter panels, control panels, etc., and in particular, a box-shaped panel frame with an improved connection structure at the corners. Regarding the body.

Description of Prior Art FIG. 1 is a front view showing the basic framework of one unit of a conventional box-shaped board frame, and FIG. 2 is a sectional view taken along the line - in FIG. 1. With reference to FIG.
is a pair of side frame members 2a and 2b, and a side frame member 2
It includes a top frame 3 and a bottom frame 4 connected by a and 2b. As is clear from Fig. 2, the bottom frame 4
, a front side horizontal frame member 5a and a rear side horizontal frame member 5b formed into an L shape by bending a steel plate, and a depth side member 6 that connects these horizontal frame members 5a, 5b.
A and 6b form an arbitrary rectangular frame. This framework is made by welding or any other joining means. Although not particularly illustrated, the top frame 3 is also configured similarly to the bottom frame 4.

Returning to FIG. 1, the pair of side frame members 2a, 2b are as follows:
It is formed by bending a steel plate into a square shape, and is arranged along the outer surface of the depth members 6a, 6b, and the vertically rising portion of the depth members 6a, 6b is tightened by a tightening member consisting of a bolt 7 and a nut 8. connected to. This joint is clearly shown in FIG. 3, which is an enlarged view of circle A in FIG.

As is clear from FIG. 3, a flat reinforcing member 9 is attached to the upper surface of the front side horizontal frame member 5a (the same applies to the rear side horizontal frame member 5b). This reinforcing member 9 has mounting holes 9 for installation.
b and a screw hole 9a for attaching a hanging fitting.

In the frame 1 as described above, when configuring the top frame 3 and the bottom frame 4, the front side horizontal frame member 5 is
a, rear side horizontal frame member 5b and depth members 6a, 6
(b), it was necessary to weld these four members while holding them in a rectangular shape so that the connecting angles of each corner were exactly right angles, which resulted in extremely poor workability. Further, when introducing the electric wire from the upper part of the top frame 3 or the lower part of the bottom frame 4, there was also a drawback that the effective space for introducing the electric wire was small because the depth members 6a and 6b had widths.

Purpose of the invention Therefore, the purpose of this invention is to eliminate the above-mentioned drawbacks, to provide a box-shaped board frame that can be assembled efficiently, and has an expanded effective space for introducing electric wires. .

Structure of the invention In summary, this invention consists of a horizontal piece, a vertical piece formed from the edge of the horizontal piece so as to be substantially perpendicular to the horizontal piece and having a hole, and a vertical piece that extends from the edge of the vertical piece horizontally. a corner connecting member having a side piece formed to extend in one direction; and a corner connecting member at both ends such that the surface of the vertical piece of the corner connecting member opposite to the horizontal piece coincides with both end surfaces. A plurality of L-shaped horizontal frame members are attached, and a pair of side frame members are attached to the corner connecting members and the horizontal frame members in holes in the vertical pieces of the corner connecting members, and the upper part of the side frame members and This is a box-shaped board frame body in which the side frame members are attached to a plurality of horizontal frame members so that the pair of horizontal frame members form a horizontal frame in substantially the same plane at the lower part.

Other features of this invention will become clear from the description of the following embodiments.

DESCRIPTION OF EMBODIMENTS FIG. 4 is a front view showing an embodiment of this invention, and FIG. 5 is a sectional view taken along the line - in FIG. 4.

Referring to FIG. 4, the frame 11 of this embodiment is
Similar to the conventional frame 1 shown in FIG.
3, the bottom frame 14, the top frame 13 and the bottom frame 1
4 and side frame members 12a and 12b that connect the two. However, as shown below, depth members 6a and 6b like the conventional frame 1 shown in FIG.
does not exist. In other words, the frame body 11 includes four horizontal frame members 15 each having corner connecting members 20, which will be described later, attached to both ends.
a, 15b... and a pair of side frame members 12a, 12b
It is formed into a box shape.

The horizontal frame members 15a, 15b... are formed into an L-shape by bending a steel plate, and the other pair of side frame members 12a, 12b are formed into a square shape by bending a steel plate. This side frame member 12a, 1
2b is connected to a corner connecting member 20 attached to the horizontal frame members 15a, 15b, as is clear from FIGS. 4 and 5.

FIG. 6 is an enlarged perspective view of the corner connecting member. As is clear from FIG. 6, the corner connecting member 2
0 includes a horizontal piece 21, a vertical piece 22 formed at a substantially right angle from the horizontal piece 21, and a vertical piece 22.
The side piece 23 is bent in the direction of the horizontal piece 21 from
Equipped with. The horizontal piece 21 has a mounting hole 21 for installation.
b and a screw hole 21a for attaching a hanging fitting. The installation hole 21b is for installing the frame 11, and the screw hole 21a for attaching a hanging metal fitting is for hanging the hanging metal fitting. The vertical piece 22 is provided with a plurality of side frame member attachment holes 22a. This side frame member mounting hole 2
2a, side frame members 12a, 12b (see FIG. 4) are attached to the side of the vertical piece 22 opposite to the horizontal piece 21. The corner connecting members 20 having such a structure are attached to both ends of the horizontal frame members 15a and 15b. FIG. 7 is a partially cutaway perspective view showing the corner connecting member 20 mounted on the horizontal frame member 15a. As is clear from FIG. 7, the horizontal frame member 15
Connect the corner connecting member 20 so that the longitudinal edge of a matches the outer surface of the vertical piece 22 of the corner connecting member 20, that is, the surface opposite to the direction in which the horizontal piece 21 exists.
A horizontal piece 21 is fixed to the upper surface of the horizontal frame member 15a by welding. Further, the side piece 23 of the corner connecting member 20 is welded and fixed to the L-shaped vertically rising surface of the horizontal frame member 15a, so that the corner connecting member 2
0 is firmly mounted on the horizontal frame member 15a.

Referring to FIG. 4, the frame 11 is constructed by first leaning the side frame member 12a on one side on a support horizontally, and then
The horizontal frame members 15a, 15b... with the corner connecting members 20 attached to both ends of the book are connected to the side frame member mounting holes 22a of the corner connecting members 20 on the front and rear sides of the upper and lower parts of the side frame members 12a. Insert the bolt 24 into the through hole provided in the side frame member 12a, tighten it with the nut 25, and then tighten the side frame member 12b on the other side.
The horizontal frame members 15a, 15b, . . . of the book are assembled by fastening in the same manner to the corner connecting members 20 provided at the other ends. Therefore, in this example:
It can be seen that the top frame 13 and the bottom frame 14 can be assembled into a box shape without requiring complicated framing work.

Effects of the invention As described above, according to this invention, a horizontal piece and a vertical piece formed from the edge of the horizontal piece to be substantially perpendicular to the horizontal piece and having a hole, a corner connecting member having a side piece formed to extend in one horizontal direction; and the corner connecting member is configured such that the surface of the vertical piece of the corner connecting member opposite to the horizontal piece coincides with both end surfaces. The upper part of the side frame member includes a plurality of L-shaped horizontal frame members attached to both ends, and a pair of side frame members attached to the corner connection member and the horizontal frame member in the holes of the vertical pieces of the corner connection member. Since a box-shaped board frame body is formed in which the side frame members are attached to a plurality of horizontal frame members so that the pair of horizontal frame members form a horizontal frame in substantially the same plane at the lower part,
The work of assembling the top frame and bottom frame, which conventionally required complicated work, can be eliminated, making it possible to mass-produce efficiently, and making it possible to obtain a more solid box-shaped board frame. In addition, since each horizontal frame member is connected only by the side frame member, the box-shaped board frame of this invention does not have any other surplus members that would prevent the introduction of electric wires from above or below the frame. Therefore, the effective space for introducing the electric wire is widened, and it is also possible to improve the efficiency of the electric wire introduction work.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a conventional box-shaped board frame. FIG. 2 is a sectional view taken along the line -- in FIG. 1. 3 is a partially cutaway front view showing an enlarged view of the portion indicated by circle A in FIG. 1. FIG. Figure 4 shows
FIG. 1 is a front view showing an embodiment of this invention. FIG. 5 is a sectional view taken along the line - in FIG. 4. 6th
The figure is an enlarged perspective view showing the corner connecting member used in the embodiment shown in FIG. 4. FIG. 7 is a partially cutaway perspective view showing the corner connecting member shown in FIG. 6 attached to the horizontal frame member. 11... Frame body, 12a, 12b... Side frame member,
15a, 15b...Horizontal frame member, 20...Corner connection member, 21...Horizontal piece, 21a...Screw hole for attaching hanging bracket, 21b...Mounting hole for installation, 22...
Vertical piece, 22a... side frame member attachment hole, 23... side piece.

Claims (1)

[Claims for Utility Model Registration] (1) A horizontal piece, a vertical piece extending from the edge of the horizontal piece so as to be substantially perpendicular to the horizontal piece and having an opening, and an edge of the vertical piece a side piece formed to extend in one horizontal direction from the corner connecting member; a plurality of L-shaped horizontal frame members having members attached to both ends; and a pair of side frame members attached to the corner connecting member and the horizontal frame member in holes in the vertical pieces of the corner connecting member; A box in which the side frame members are attached to the plurality of horizontal frame members so that the pair of horizontal frame members form a frame horizontally in substantially the same plane at the upper and lower parts of the side frame members. Shape frame body. (2) The box-shaped board frame according to claim 1, wherein the horizontal piece of the corner connecting member is provided with an installation hole and a screw hole for attaching a hanging bracket.