JPS6242555Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to small electrical parts such as switches, sockets, and jacks, and in particular, the mounting part protrudes from the main body.When the mounting part is inserted into the hole of the mounting plate, the mounting part protrudes from the hole. This relates to a device in which the electrical component is attached to the mounting plate by sandwiching the mounting plate between the claw and the main body.

In this way, electrical parts can be mounted by simply inserting the mounting part into the mounting hole.
Since it can be installed with a so-called one-touch operation, the installation operation is simple and convenient. However, in conventional electrical components of this type, the claws that engage with the mounting plate are made of resin, and those made of resin have low strength, and if the claws break, they lose their mounting effect, or Since it is made of resin, burrs often form during molding, which may prevent smooth installation.
In addition, some claws are made of metal, but in this case, it is difficult to replace the metal fittings provided with the claws, or it is difficult to attach the claw metal fittings.

The object of this invention is to provide a small electrical component that can securely attach and detach a portion with a claw, and that does not cause the risk of the claw being damaged or weakened.

Hereinafter, the case where the small electric component according to this invention is applied to a jack will be explained with reference to the drawings. As shown in FIG.
stands out. Since this mounting part is a jack in this example, it is sleeve-shaped, and has a plug insertion/removal hole 14 formed therein. (not shown) is driven. A terminal 15 for a contact piece of the main body 11 protrudes from the main body 11 to the outside.

In this example, the outer circumferential surface of the mounting portion 13 has a substantially rectangular cylindrical shape, and at least one pair of opposing side surfaces thereof are formed into recesses 15 and 16 that reach the edge on the same side. In this example, the recesses 15 and 16 reach one edge and also reach between the edges on the same side of the recess 1.
A recess 17 is formed in the mounting portion 13 to connect with the recesses 5 and 16, and the widths of these recesses 15, 16, and 17 are the same. Also, one side wall of these recesses is a surface 1 on the protruding side of the mounting portion 13 of the main body 11.
It consists of 2. Convex portions 1 are provided in concave portions 15 and 16.
8 and 19 (18 is hidden in the drawing) are formed protrudingly.

A fixture 21 is provided by bending a rectangular spring material into a U-shape, and claws 25 and 26 are cut and raised in both leg portions 23 and 24 of the fixture 21, respectively. Claw 25,
26 are cut and raised from each other in such a way that the distance between them increases as they approach the main body 11 side. The legs 23 and 24 of the mounting fixture 21 fit into the recesses 15 and 16 of the mounting portion 13.
When the claws 25, 26 are cut and raised, the protrusions 18, 19 engage with the engagement holes 27, 28, which are formed at the same time and communicate with the windows formed by the cut and raise, to prevent them from coming off. . Both legs 23 and 24 of the fixture 21
The distance between the free ends of the recesses 15 and 16 is smaller than the distance between the bottoms of the recesses 15 and 16, and the length of the central part of the fixture 21 is smaller than the distance between the bottoms of the recesses 15 and 16.
The distance between the bottom surfaces of Nos. 5 and 16 is approximately the same. When the legs 23 and 24 are pushed apart and inserted into the recesses 15 and 16 from a direction perpendicular to the protruding direction of the attachment part 13, and the center part of the attachment 21 is pressed against the attachment part 13, the free ends of the legs 23 and 24 The portions ride over the convex portions 18 and 19, and the convex portions 18 and 19 engage with the holes 27 and 28, and in this state, the central portion of the fixture 21 is positioned within the concave portion 17. In this case, the convex portion 18,1
It is preferable that the surfaces of the convex portions 18 and 19 on the concave portion 17 side be tapered surfaces 29 so that the free ends of the legs 23 and 24 can easily ride over the convex portions 18 and 19. In addition, the width of the fixture 21 almost matches the width of the recesses 15, 16, 17, so that the fixture 21 does not play in the direction in which the mounting part 13 protrudes, and is securely fitted into the recesses 15, 16, 17. and strongly mounted. Recessed portion 17 of mounting portion 13
A protruding piece 31 that determines the attitude is integrally protruded from the circumferential surface on the opposite side.

For example, as shown in FIG. 3, such an electrical component has a mounting hole 33 formed in a mounting plate 32.
3, insert the mounting part 13 into the mounting hole 33 with the claw 25,
The end of 26 is elastically deformed and approaches the attachment part 13,
When the claws 25 and 26 come out of the mounting holes 33, they expand due to their elastic force, and at this time, the mounting plate 32 is held between the tips of the claws 25 and 26 and the surface 12 of the main body 11 from which the mounting portion 13 protrudes. , the electrical components are on the mounting plate 3
Attached to 2. The mounting hole 33 almost matches the outer circumferential shape of the mounting portion 13, and is a rectangular hole in this example. Furthermore, a notch 34 into which the protruding piece 31 is inserted is formed to communicate with the hole 33 in order to determine the mounting posture. ing.

As shown in FIG. 4, a cylindrical portion 20 smaller than the outer circumference of the mounting portion 13 is projected, a screw 34 is formed on the outer circumference of the cylindrical portion 20, and the screw 34 is inserted into the mounting hole as in the conventional case. It is also possible to make it protrude and attach it to the mounting plate 32 by tightening a nut. In that case, the mounting portion 13, the cylindrical portion 20, and the stepped portion 25 are tightened so that they are in contact with the mounting plate.

According to the electrical component according to the invention described above, by inserting the mounting portion 13 into the mounting hole 33, the electrical component can be mounted on the mounting plate with a single touch. In this case, since the claws 25 and 26 are made of metal, they are difficult to break, have spring durability, have fewer burrs, etc. compared to molded products, and can be installed smoothly and reliably on the mounting plate. can. By making the distance between the claws 25, 26 and the mounting surface 12 of the main body 11 slightly larger than that of the mounting plate 32, it is easy to reduce backlash when the electrical component is mounted on the mounting plate. Furthermore, the fixture 21 is constructed by bending a metal plate, and can be easily removed by opening both legs. Therefore, if the claws 25, 26 are damaged, by replacing the fixture 21, it is possible to use the device without replacing the electrical parts. The fixture 21 is bent into a U-shape as described above, and can be easily attached and detached, and the attached state can be made strong. In addition, even though the fixture 21 is made of a metal plate and is relatively thin, it is also fitted into the recesses 15 and 16, and furthermore, in this example, the recess 17.
It does not shift from these, is strongly attached, and is not likely to come off easily, and the space occupied by the fixture is small. Furthermore, it is possible to reduce rattling when the device is attached to this mounting plate.
Furthermore, the engagement holes 27 and 28 can be formed simultaneously with the formation of the claws 25 and 26.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an example of a small electrical component according to this invention, FIG. 2 is a side view of the small electrical component mounted on a mounting plate, FIG. 3 is a perspective view showing the mounting plate and the electrical component, and FIG. The figure is a side view showing another example of the small electric component according to this invention. 11...Main body, 13...Mounting part, 15, 16...
...concavity, 18, 19...protrusion, 21...fixture,
23, 24... Legs, 25, 26... Claws, 27,
28...Engagement hole, 32...Mounting plate, 33...Mounting hole.

Claims (1)

[Scope of utility model registration request] A mounting part protrudes from the main body, a claw is attached to the circumferential surface of the mounting part, the mounting part is inserted into a hole in the mounting plate, and the mounting plate is sandwiched between the claw and the main body to be attached to the mounting plate. In the electrical part,
The above-mentioned mounting part has a rectangular cylindrical outer circumferential surface, and recesses are formed on the pair of opposing sides so as to reach at least the edges of the same side, and a mounting tool made of a spring material bent into a U-shape holds both legs of the mounting part. It is fitted into the recess and attached to the mounting part, and both legs of the fixture are cut out with claws that open outward from each other and whose spacing becomes larger as they approach the main body. An engagement hole that communicates with the window formed by the above is formed on the free end side of the leg, and a convex portion that fits into the engagement hole is integrally formed in the recess of the attachment portion. A small electrical component that prevents tools from falling out.