JPS6223112Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fixture structure for electrical equipment.

Conventionally, as shown in FIGS. 6 and 7, the electrical equipment case 1 is inserted into the hole 3 of the panel 2, and is pulled out from the recess 6 by rotating the screw 4 screwed into the fixing metal fitting 5.
In addition, when the fixing metal fitting 5 rises, the panel 2 is clamped between the flange 7 of the case 20 and the tip of the fixing metal fitting 5, thereby fixing the case 1 to the panel 2. With this fixing structure, in order to make the fixing fitting 5 come out of the recess 6 by rotating the screw 4, the screw hole 8 of the fixing fitting 5 is inserted as shown in FIG.
A cut groove 10 is formed in the piece 9 provided with the thin lower piece 11.
are slightly bent upward and the screw holes 8 of the upper piece 12 and the lower piece 11 are shifted to provide friction when the screw 4 is screwed into the screw hole 8. With this fixing metal fitting 5, in order to make the lower piece 11 easier to bend, it is not made too thick, and the pitch width of the screw hole 8 is made to be slightly shifted due to the deformation of the lower piece 11. Therefore, since the kerf 10 is thin, the mold strength is weak and the kerf 10 cannot be molded with a mold, and the kerf 10 is formed by post-processing after molding the fixture 5, resulting in high costs. It was hot.

The present invention aims to improve the above-mentioned drawbacks, and is shown in Figures 1-
Explaining with reference to FIG. 5, 20 is a recess provided in the side surface of the case 20 for the electrical equipment case 21, 22 is a flange formed around the upper end of the case 20, 23 is a fixing fitting that is housed in the recess 21, 24 is a screw that passes through the upper wall 25 of the recess 21 from above, and the fixing metal fitting 23
The lower end is fitted into the lower wall 27 of the recess 21 and locked therein.

The fixing fitting 23 has a square-shaped holding hole 2 at the top of the piece 26.
8, and a screw hole 29 that extends downwardly and continues from the holding hole 28 is formed. 30 is a piece made of plastic resin with a hole 31 in the center and a holding hole 28.
As shown in FIG. b, the outer diameter of the piece 30 is c, the screw 24
When the diameter of the mountain is d, if a is slightly smaller than c and the piece 30 is inserted into the holding hole 28, the piece 30
When the screw 24 is screwed into the piece 26, b is slightly smaller than d and screwed into the hole 31 of the piece 30 while tapping.
Screw on 9. Although the shape of the holding hole 28 is square, it may have any shape as long as it prevents the piece 30 from rotating, and the piece 30 may be manufactured to match the shape of the holding hole 28.

Next, to explain how to fix the case 20 to the panel 33, after inserting the case 20 into the hole 34 of the panel 33, from the state e where the fixing fitting 23 is housed in the recess 21 as shown in FIG. When the screw 24 is rotated in the direction of the arrow g, the fixing metal fitting 23 is rotated in the direction of the arrow g because the screw 24 is frictionally screwed into the piece 30, and the piece 26 is locked to the side wall 32 of the recess 21, causing
Then, as the screw 24 is rotated, the fixing fitting 23 is raised, and the case 20 is fixed to the panel 33 by sandwiching the panel 33 between the collar 22 and the fixing fitting 23, as shown in FIG.

As described above, in the present application, the holding hole 28 of the fixing fitting 23
Since the structure is such that the piece 30 is inserted and held in the hole 31 of the piece 30 and the screw 24 is screwed into the hole 31 of the piece 30 by tapping, it is easier to assemble and manufacture compared to the conventional fixture 5 in which the cut groove 10 is formed. This had the practical effect of lowering costs.

[Brief explanation of the drawing]

Figures 1 to 5 show one embodiment of the structure of a fixing fitting for an electrical device according to the present invention. Fig. 3 is a diagram showing the electrical equipment fixed to the panel, Fig. 4 is a sectional view of the fixing fittings,
Figure 5 is an exploded perspective view of the fixing metal fittings, pieces and screws;
FIG. 6 and FIG. 7 show a conventional example. FIG. 6 is a front view of the fixing fitting, and FIG. 7 is a diagram showing a state in which an electric device is fixed to a panel. 20 is an electrical equipment case, 21 is a recess, 22 is a flange, 23 is a fixing fitting, 24 is a screw, 25 is an upper wall,
26 is a piece, 27 is a lower wall, 28 is a holding hole, 29 is a screw hole, 30 is a piece, and 31 is a hole.

Claims (1)

[Scope of utility model registration request] A fixing fitting 23 housed in a recess 21 provided on the side surface of the electrical equipment case 20 and a piece 2 of the fixing fitting 23
6, passes through the upper wall 25 of the recess 21, and has its lower end fitted and locked into the lower wall 27, and the panel 33 is assembled with the flange 22 of the case 20 and the fixing metal fittings 23.
In the case 20 that is fixed to the hole 34 of the panel 33 by holding the case 20, the holding hole 28 provided in the upper part of the piece 26 of the fixing fitting 23 and the holding hole 28 continuous with the holding hole 28,
A screw hole 29 penetrating downward and a holding hole 2
A fixing metal structure for an electrical device, comprising a piece 30 which is fitted and held in a non-rotatable manner in a screw hole 29 and has a hole 31 in the center, and a screw 24 which is screwed into the hole 31 by tapping and screwed into a screw hole 29.