JPH0521930Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a mounting structure between a metal wire and a synthetic resin box, and more specifically, to a mounting structure that securely fixes the box to a predetermined position on the wire. .
The present invention also relates to a structure for attaching a metal wire to a synthetic resin box, which allows the wire to be pulled into the box from the wire storage groove of the wire without damaging the wire.

(Prior Art) The present inventor has developed a wire storage groove 11 that is open at the top and a mounting groove 13 that is open at the bottom and has a hook portion 12 that faces inward, as shown in FIGS. 3 to 5. A metal wire pipe 10 is proposed.

In the case of such a wire pipe 10, the wire storage groove 11
The electric wire is stored inside, the fixing member etc. are attached to the mounting groove 13, and the box is attached to the hooking part 12 of the mounting groove 13.
It is designed to be installed by being latched onto it. Then, the knockout 15 provided on the bottom wall 14 of the wire pipe 10 and the knockout provided on the side wall of the box are opened, and the wire in the wire storage groove 11 is drawn into the box and wired. There is.

(Problem to be Solved by the Invention) However, when the box is attached to the wire pipe 10, the hole formed by punching out the knockout 15 provided on the bottom wall 14 of the wire pipe 10 and the side wall of the box. A gap corresponding to the depth of the mounting groove 13 of the wire pipe 10 is created between the knockout hole and the opened knockout hole.

Therefore, when the wire is drawn into the box from the wire storage groove 11, the periphery of the through hole of the wire pipe 10,
There was a problem in that the electric wire came into contact with both the periphery of the knockout hole of the box and was easily damaged.

Moreover, since the box is fixed to the hook part 12 of the mounting groove 13 and attached to the wire pin 10,
If the mounting condition is poor, the box shifts laterally along the mounting groove 13, which causes the wire drawn into the box from the wire storage groove 11 to come into contact with the opening and be damaged.

The present invention was devised in view of these circumstances, and the box is securely fixed to the predetermined position of the wire, and the wire can be drawn into the box from the wire storage groove of the wire without damaging it. The present invention aims to provide a structure for attaching a metal wire to a synthetic resin box.

(Means for solving the problem) That is, the mounting structure of the metal wire pipe and the synthetic resin box according to the present invention includes a gutter-like wire storage groove that is open at the top and a groove that protrudes from the outer surface of the bottom wall. A mounting structure for attaching a metal wire pipe and a synthetic resin box, the box having a mounting groove having an inward hooking portion that opens downward, and the box is hooked to the hooking portion of the wire mounting groove. At the same time, a rigid tube that protrudes from the side wall of the box, is longer than the depth of the mounting groove, and has an external shape corresponding to the through hole formed in the bottom wall of the wire storage groove is inserted from the through hole into the wire storage groove. It is characterized by a box attached to the wire piping, making it appear as if it were a mountain.

(Example) The present invention will be described in detail below according to an example shown in the drawings.

FIGS. 1 and 2 show an embodiment of the mounting structure for a metal wire pin 10 and a synthetic resin box 20 according to the present invention. A storage groove 11 in which the metal parts are stored, and a mounting groove 13 in which supporting metal parts and the like can be stored are formed in the lower part.

The attachment groove 13 is provided in the bottom wall 14 of the storage groove 11, and has side walls 18 whose edges are bent inward to form the hook portions 12. The hooking portion 12 of the side wall 18 functions to hook a support fitting or the like and prevent it from coming off from the mounting groove 13. In this embodiment, the basic shape is bent at a substantially right angle, but in the present invention, the two opposing hooking parts 12 are bent into a V-shape when viewed from the side of the wire 10. Alternatively, it may be bent at a substantially right angle and a part of the bent end may be bent.As long as the supporting metal fittings etc. can be securely latched, the shape may be changed. Not particularly limited.

Further, the opening formed between the side walls 18 of the mounting groove 13 may be an opening having a width that allows the support fittings and the like to be accommodated in the mounting groove 13.

The bottom wall 14 of the wire pipe 10 has a through hole 1 when punched.
Knockouts 15 forming 6 are provided at arbitrary intervals.

The wire pin 10 having such a configuration has a storage groove 1.
1 and the mounting groove 13 are integrally formed of metal.

The synthetic resin box 20 has a protruding piece 22 with a U-shaped groove cut on its outer wall 21, and is attached to the mounting surface 23 to the wire pipe 10 at a position where a knockout hole 24 is provided. , a tube 30 longer than the depth of the attachment groove 13 of the wire pipe 10 is fixed. This tube 30 is made of synthetic resin or the like that will not damage the electric wire at its tip or the like. In this embodiment, the tube 30 is formed integrally with the box 20, but the present invention is not limited to this, and the tube 30 may be formed separately from the box 20 as long as it is securely fixed. , box 2
It may be attached to 0.

To attach the wire pin 10 and the box 20, first punch out the knockout 15 of the wire pin 10 at the position where the box 20 is to be attached using a tool such as pliers or a screwdriver. The cylinder 30 provided on the box 20 is fitted into the knockout hole 16 thus formed, and the screw hole 41 of the support fitting 40 installed in the U-shaped groove of the box 20 and the mounting groove 13 of the wire pin 10 is inserted.
The box 20 is attached to the wire pipe 10 by gradually tightening the mounting screw 50. By doing this, the tube 30 is fixed so as to protrude into the storage groove 11 from the attachment groove 13 side of the wire pin 10.

The electric wire 60 stored in the storage groove 11 of the wire pipe 10 is drawn into the box 20 through the tube 30. The electric wire 60 is covered by the tube 30 and does not come into contact with the periphery 17 of the knockout hole 16 of the wire 10, so that it will not be damaged at all.

(Effects of the invention) As explained above, the present invention latches and fixes the box to the latching part of the wire mounting groove. A rigid cylinder, which has an external shape corresponding to the formed through-hole, faces into the wire storage groove from the through-hole, and the box is attached to the wire. It is possible to securely fix the wire without causing it to shift laterally, and also to draw the wire from the wire storage groove into the box without damaging the wire through the tube projected into the wire storage groove. or,
The box will not wobble when installing an outlet to the box.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the mounting structure between a metal wire and a synthetic resin box according to the present invention;
Fig. 2 is a vertical cross-sectional metal drawing taken along the line I-I in Fig. 1, Fig. 3 is a perspective view showing an embodiment of the metal wire pipe proposed by the present inventor, and Fig. 4 is the drawing shown in Fig. 3. of-
FIG. 5 is a longitudinal sectional view taken along the line, and FIG. 5 is a plan view taken along the line of FIG. Explanation of symbols, 10...Metal wire pin, 11...Wire storage groove, 12...Latching part, 13...Mounting groove, 1
4... Bottom wall, 15... Knock out, 16... Knock out hole, 17... Periphery, 18... Side wall, 2
0...Synthetic resin box, 21...Outer wall, 22
... Projection piece, 23 ... Mounting surface, 24 ... Knockout hole, 30 ... Cylinder, 40 ... Supporting metal fitting, 41 ...
Screw hole, 50...Mounting screw, 60...Electric wire.

Claims (1)

[Scope of Claim for Utility Model Registration] A metal product having a gutter-like electric wire storage groove that opens at the top and a mounting groove that protrudes from the outer surface of the bottom wall and has an inward hooking part that opens at the bottom. This is a mounting structure for a wire pin and a synthetic resin box, in which the box is latched and fixed to the latching part of the wire pin installation groove, and it protrudes from the side wall of the box, is longer than the depth of the installation groove, and is attached to the bottom wall of the wire storage groove. A metal wire pipe characterized in that a rigid tube is formed in an outer shape corresponding to a through hole formed in the wire pipe, and a box is attached to the wire pipe, with a rigid tube extending from the through hole into the wire storage groove. Mounting structure with synthetic resin box.