JPH0631332U - Mock bus - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the stud bolt from falling off. [Structure] A protrusion 6 for preventing rotation formed on a peripheral surface of a base 7 of a stud bolt 4, a recess 8 for preventing a slip-off formed at a position adjacent to the base 7 of the bolt 4, and a simulated busbar body 1 A hole formed in the back surface of the base 7 into which the base portion 7 and the concave portion 8 are inserted, and a caulking portion 9 press-fitted into the peripheral surface of the base portion 7 and the concave portion 8 by caulking the simulated bus bar main body 1 around the hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simulated busbar in which a stud bolt is attached to the back surface of a simulated busbar body used for a switchboard or the like so as not to fall off.

[0002]

[Prior art]

 The conventional simulated bus bar is configured as shown in FIGS. 4 and 5. In these figures, 1 is a strip-shaped simulated busbar body made of aluminum or brass, 2 is a plurality of tap holes formed at appropriate places on the back surface of the body 1, and 3 is a stud bolt whose peripheral surface is threaded. And is screwed into the tap hole 2. Then, the bolt 3 is inserted into the through hole of the switchboard from the front side, the nut is screwed into the bolt 3 led out to the rear surface of the switchboard, and the main body 1 is attached to the switchboard.

[0003]

[Problems to be solved by the device]

 In the case of the conventional simulated busbar, the stud bolt 3 is only screwed into the tap hole 2 of the main body 1. Therefore, when the main body 1 is removed from the mounting board surface, the bolt 3 is loosened by the reverse rotation of the nut, and the bolt 3 There is a problem that is dropped from the main body 1. The present invention has been made in view of the above points, and an object thereof is to provide a simulated busbar in which the stud bolt does not drop from the simulated busbar body.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the simulated busbar of the present invention has a protrusion for preventing rotation formed on the peripheral surface of the base of a stud bolt and a retaining member formed at a position adjacent to the base of the bolt. A concave portion, a hole formed on the back surface of the simulated busbar body into which the base portion and the concave portion are inserted, and a caulking portion press-fitted into the peripheral surface of the base portion and the concave portion by caulking the simulated busbar body around the hole. It is equipped with.

[0005]

In the simulated bus bar of the present invention constructed as described above, the projection formed on the peripheral surface of the base of the stud bolt and the recess formed adjacent to the base are the back of the simulated bus bar main body. It is inserted into a hole formed in the surface, and the caulking part around the hole presses the caulking part into the peripheral surface of the base part and the recessed part, preventing the stud bolt from coming off and coming off, and only the hole There is no need to form a tap hole by the process of, and the process is easy, and it can be installed by simply caulking the stud bolts, and the installation is easy.

[0006]

【Example】

 One embodiment will be described with reference to FIGS. 1 to 3. In these drawings, the same reference numerals as those in FIGS. 4 and 5 indicate the same or corresponding ones, 4 is a stud bolt having a thread 5 cut on the peripheral surface, and 6 is a detent formed on the peripheral surface of the base portion 7 of the bolt 4. It is a projection for use with vertical knurls and other non-circular shapes. Denoted at 8 is a recess for preventing slippage which is formed in phosphorus contact with the base portion 7 of the bolt 4. The diameter of the bottom surface of the recess portion 8 is smaller than the outer diameter of the base portion 7 and is formed in an annular shape.

Then, the base portion 7 and the recessed portion 8 of the bolt 4 are inserted into the holes formed on the back surface of the simulated bus bar main body 1, and a cylindrical caulking tool having four protrusions at the tip is attached to the bolt 4. After inserting, the main body 1 around the hole is caulked with a caulking tool, and the caulking portion 9 is press-fitted into the peripheral surface of the base portion 7 of the bolt 4 and the concave portion 8.

Reference numeral 10 in FIG. 2 is a caulking recess formed by the tip of the caulking tool. The diameter of the hole formed in the main body 1 may be slightly smaller than the outer diameter of the base 7 when the base 7 of the bolt 4 is a knurl, and the base 7 may be fitted into the hole.

[0009]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. In the simulated busbar of the present invention, the projection 6 formed on the peripheral surface of the base portion 7 of the stud bolt 4 and the recessed portion 8 formed adjacent to the base portion 7 are formed on the back surface of the simulated busbar body 1. The stud bolt 4 is inserted into the hole and the caulking portion of the main body 1 around the hole presses the caulking portion into the peripheral surface of the base portion 7 and the concave portion 8. Therefore, the protrusion 6 prevents the stud bolt 4 from turning around, and The bolt 4 is prevented from coming off, and it is not necessary to form a tap hole in the main body 1 by machining only the hole, the machining is easy, and the bolt 4 can be mounted only by caulking. It can be installed easily.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

2A and 2B are a cross-sectional view and a bottom view of a part of FIG.

3 is a front view of the stud bolt of FIG. 1. FIG.

FIG. 4 is a front view of a conventional example.

5 is a bottom view of FIG. 4. FIG.

[Explanation of symbols]

 1 Simulated Bus Bar Main Body 4 Stud Bolt 6 Projection 7 Base 8 Recess 9 Caulking

Claims (1)

[Scope of utility model registration request] 1. A rotation preventing projection formed on a peripheral surface of a base of a stud bolt, a recess for preventing removal formed at a position adjacent to the base of the bolt, and a back surface of the simulated bus bar main body. A simulated busbar having a hole formed therein, into which the base and the recess are inserted, and a caulking portion press-fitted into the peripheral surface of the base and the recess by caulking the simulated busbar body around the hole.