JPS644243Y2 - - Google Patents

Description

[Detailed description of the invention] In the switchboard, necessary instruments are arranged and stored in the channels B of the panel frame A, which is called a mosaic panel and is integrally constructed in the shape of vertical and horizontal base grids, as shown in Fig. 14.
It is known to construct a panel surface by attaching plastic or metal tiles C to the other channel surfaces.

In such a case, it becomes necessary to cut out a part of the panel frame A' to match the size of the instrument used. If you want to change the mounting position of the instruments or install new instruments, it is necessary to cut out a part of the panel frame A' or make a hole in the panel frame A.

Therefore, the panel frame has the disadvantage that the strength of the entire switchboard is reduced.

The present invention was devised to eliminate this drawback, and as shown in Figs. 4 and 13, a panel frame is constructed by mechanically connecting a large number of rectangular frame-shaped hollow blocks D, D. In cut-free mosaic panels, some blocks D' can be omitted depending on the size of the instruments used, or other large blocks can be inserted into these parts.
In particular, the stud bolt is used to prevent the surface of the mosaic from being distorted even if an external force F (FIG. 6) is applied to the mosaic surface.

That is, in the corner part of the hollow block,
When a cut is made to a predetermined depth over a certain width from both the front and back sides, and the remaining ridge line portion is depressed to provide a cut surface, and hollow blocks are placed adjacent to each other, the depression caused by the cut The width and height of the head 5a of the connecting bolt 5 are adjusted so that the head of the connecting bolt and the nut can be inserted into the space from the front and back. The width W is twice the width of the cut 2, and the depth L' is larger than the depth L of the cut 2.

Embodiments of the present invention will be described based on the drawings.

The hollow block 1 referred to in the present invention refers to a rectangular frame made of metal or plastic, as shown in Fig. 1, and the four corners of the block have a predetermined depth extending over a certain width from both the front and back sides. Provide cut 2.

The width of the cut 2 is as shown in FIG. 2, and the depth is L as shown in FIG.

Further, the ridge line portion of the remaining portion 3 of the front and rear notches 2, 2 is depressed to provide a notch surface 4.

In this way, when the hollow blocks 1 are arranged adjacent to each other, the notches 2 of each of the adjacent hollow blocks 1, 1 are formed as shown in FIG.
As a result, cross-shaped recesses a are formed at two locations in the front and rear, and a cavity b that penetrates in the front and rear is formed in a portion surrounded by the notch surfaces 4, 4.

Note that the cutout surface 4 may have a chamfered shape, for example, and the point is that when the hollow blocks 1 are arranged, a space b passing through from the front side to the back side is formed.

The plurality of hollow blocks 1, 1 can be connected using a connecting bolt 5 having a lock-shaped polygonal head and a nut 6 screwed into the threaded portion 5b of the connecting bolt 5.

That is, when the hollow blocks 1, 1 are arranged, the bolts 5 are inserted into the cavities b formed at the four corners thereof, and the heads 5a are positioned in the recesses a on the rear side, and the bolts 5 are inserted into the recesses on the front side. Insert the nut 6 into the hole a and screw it into the threaded portion 5b of the bolt 5.

In addition, for this fixing, as shown in FIG.
When the washers 7 having the hooks 7a are fitted facing each other, the hooks 7a are engaged with the four hollow blocks 1, 1, and the nuts 6 are tightened from above, the adjacent hollow blocks are firmly attached to each other. connected to.

If the above operations are carried out continuously in all directions, a large checkerboard-shaped panel frame can be constructed, and the rectangular frame of the many hollow blocks 1 becomes one channel B, and the necessary instruments are placed here. can be placed as appropriate, and tiles C are fitted into the other channels. The head 5a of the connecting bolt 5 is as shown in FIG.
Its width and height W are each twice the width of the notch 2 (i.e., W=2), and its depth L' is larger than the depth L of the notch 2 (i.e., L'>L). .

In this way, the plurality of hollow blocks 1, 1 are fixed to each other by the connecting bolt 5 and the nut 6, and as shown in FIGS. When the bolt 5 is fixed to the hollow block 1, the outer surface of the head 5a of the bolt 5 is fixed to the hollow block 1 as shown in FIGS.
Since the head 5a of the bolt 5 protrudes from the hollow block 1 to the back side (to the right in the figure), the first
At point P in FIGS. 1 and 12, the hollow block 1 and the head 5a of the connecting bolt 5 come into contact.

Therefore, even if a force in the direction of the arrow is applied to the end of the hollow block 1, as shown by F in FIG. It is possible to prevent the hollow block 1 from being bent in a diagonal shape, and to prevent distortion from occurring on the surface of the hollow block 1.

Note that if the width and height of the cross-shaped square washer 8 are twice the width of the notch 2, as in the case of the head 5a of the bolt 5, and this is inserted between the nut 6 and the washer 7, a hollow It is possible to further prevent distortion from occurring in the blocks 1, 1 due to external forces from the surfaces.

In the present invention, the head 5a of the connecting bolt 5 is
Since the width and height W of the notch 2 are twice the width of the notch 2, and the depth L' is made larger than the depth L of the notch 2, the hollow block 1 is bent in a dogleg shape at the connecting part ( Since the hollow block 1 can be prevented from being warped and the surface of the hollow block 1 can be prevented from being distorted, the function of the switchboard is not impaired.

[Brief explanation of the drawing]

1 to 13 of the accompanying drawings show an embodiment of a rectangular hollow block for a cut-free mosaic panel according to the present invention. FIG. 1 is a perspective view of the hollow block, FIG. 2 is a front view thereof, and FIG. 3 is an enlarged perspective view of the corner portion, FIG. 4 is a front view of a portion of the panel frame mechanically connecting the hollow blocks, FIG. 5 is a side view thereof, and FIG. The figure is an enlarged vertical sectional view of a part of the block, Figure 7 is an exploded perspective view showing the connection mechanism of the hollow block, and Figure 8 is an exploded perspective view showing the connection mechanism of the hollow block.
Figures 9 and 9 are front views of the connecting parts of the hollow blocks seen from the front and back sides respectively, Figure 10 is a front view showing the state of the hollow blocks before they are connected, and Figure 11
The figures are a cross-sectional view taken along the line XI-XI of FIG. 8, FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG. 9, FIG. The figure is a front view of the panel frame of a conventional integrated mosaic panel. 1... Hollow block, 2... Notch, 4... Notch surface, 5... Connection bolt, 5a... Its head,
6... Nut, 7... Washer, a... Recess, b...
Blank space.

Claims (1)

[Scope of utility model registration request] At the corner part of the hollow block 1, a notch 2 is provided by a predetermined depth L over a certain width from both the front and back sides, and a notch surface 4 is provided in the remaining ridge line part 3, so that a plurality of hollow blocks 1, When 1 is combined, connecting bolts 5 are inserted into two recesses a in the front and back formed by the notches 2 in the adjacent hollow blocks.
and the nut 6, and the threaded portion 5b of the bolt 5 can be inserted into the space b formed by the notch surface 4, and the connecting bolt 5
A hollow block for a cut-free type mosaic panel, characterized in that the width and height W of the head 5a are twice the width of the notch 2, and the depth L' thereof is larger than the depth L of the notch 2. .