JPS5840623Y2 - Parts mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for attaching components, and more particularly to a device that serves both of tightening and fixing components and electrically connecting them.

Generally, in devices such as radio receivers that have internal noise sources, it may be necessary to connect a metal panel to an electric circuit for grounding.

Conventionally, this kind of device connects an electric circuit and a metal panel using lead wires, or uses a plate spring that measures the contact pressure by area, or a coil spring that can be expanded and contracted, and connects the electrical circuit to the metal panel at both ends. Methods such as contact combination were commonly used.

However, when using leaf springs, contact pressure decreases, sag occurs, and it is necessary to re-apply the target to restore elasticity, which has the disadvantage of causing damage. .

Furthermore, when a telescopic coil spring is used, it is not easy to install because it bends laterally during assembly.

Furthermore, when lead wires are used, there is a drawback that the connection must be made by soldering or the like, which requires a lot of man-hours.

The present invention was developed in view of the above points, and the tip has an L.
Using a conductive coil spring with a letter-shaped protrusion, insert a part to be tightened into the winding part of this coil spring, and then insert the part to be tightened into the winding part of this coil spring. By selectively disposing the first plate body and the second plate body formed of a conductive material, the L-shaped protrusion of the coil spring can be formed by the first plate body and the second plate body. The structure is easy to install by pressing and compressing the pieces, tightening and fixing the parts to be fastened, and electrically connecting the first plate, the second plate, and the parts to be fastened as desired. The present invention also provides a device for attaching parts that is easy to install.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a component mounting device according to the present invention will be described in detail with reference to FIGS. 1 to 4.

This embodiment relates to a mounting device for an earphone jack in a thin radio receiver.

First, a metal earphone jack 10 is provided.

This earphone jack 10 has cylindrical bodies 13 and 14 formed in the middle part of a plate 11, each having a hole 12 that protrudes on both sides and into which an earphone plug (not shown) is inserted. The end portion 15 is formed into a flange shape.

A coil spring 20 is then provided. This coil spring 20
is a protruding piece 21 whose tip is bent into an almost L-shape,
21', and the intermediate portion between the straight portions 22 and 22' serves as a winding portion 23, which is formed into a substantially U-shape.

Incidentally, the inner diameter of the winding portion 23 of the coil spring 20 is formed to be approximately the same diameter as the outer diameter of the cylindrical body 13 of the earphone jack 10.

Then, as shown in FIG. 2, the wound portion 23 of the coil spring 20 is fitted onto the outer peripheral surface of one cylindrical body 13 of the earphone jack 10.

In this case, the coil spring 20 has a winding portion 23 at the end 1 in the shape of a brim.
Since it is locked by 5, it is prevented from falling off.

Next, the earphone jack 10 engaged with the coil spring 20 is assembled into a radio receiver 30 as shown in FIG.

That is, the other cylindrical body 14 of the earphone jack 10 is inserted from the inside into the jack mounting hole 33 formed in the outer wall 32 of the plastic chassis structure 31 of the radio receiver 30, and then the upper and lower surfaces of the chassis structure 31 are inserted from the upper and lower sides. Attach the metal panel 34 and the metal panel 35 on the back side with screw 3.
6 or the like.

Therefore, since both the metal panels 34 and 35 are disposed on the upper and lower sides of the plate 11 of the earphone jack 10,
Both projecting pieces 21, 21 of the coil spring 10 that are opened
' are pushed inward towards each other and compressed.

Therefore, the cylindrical body 13 of the earphone jack 10 is tightened by the winding part 23 as the linear part 22, 22' of the coil spring 20 bends, thereby preventing the jack 10 itself from rattling or rotating. .

Further, the protrusions 21 and 21' of the coil spring 20 are in contact with the inner surfaces 37 and 38 of the metal panels 34 and 35 due to their elasticity.

Incidentally, in this type of receiver, the earphone jack 10 itself is generally electrically grounded.

Therefore, the metal panels 34 and 35 are also grounded via the coil spring 20, and even if there is a noise source inside, it can be well shielded.

In this embodiment, the end portion 15 of the cylindrical body 13 is formed into a brim shape in order to prevent the coil spring 20 from falling off, but this is not necessary.

Further, the electrical connection via the coil spring 20 is selectively set to the combinations of the earphone jack 10 and the front metal panel 34, the earphone jack 10 and the rear metal panel 35, and the earphone jack 10 and the metal panels 34 and 35. obtain.

Furthermore, the tightening strength of the jack 10 and the metal panel 34.35
The contact pressure of the coil spring 20 against the coil spring 20 can be arbitrarily set by the lengths of the straight portions 22, 22' of the coil spring 20 and the protrusions 21, 21'.

Furthermore, it goes without saying that the present invention is not limited to attachment of an earphone jack, panel, etc., or electrical connection.

According to the component mounting device according to the present invention as described above,
It uses a conductive coil spring to tighten the parts to be tightened and to make an electrical connection at the same time.It has a simple structure, is easy to install and assemble, and has various effects such as good electrical continuity. It is something that you have.

[Brief explanation of the drawing]

1A and 1B are perspective views showing each component according to an embodiment of the component attachment device according to the present invention, FIG. 2 is a perspective view showing a state in which the components shown in FIG. 1 are combined, and FIG. The figure is a front view of the same as above.
FIG. 4 is an external perspective view showing an embodiment of the component mounting device according to the present invention, and FIG. 5 is a front view partially showing a main part of the same in section. In the diagram, 10... earphone jack, 20...
... Coil spring, 34 ... Metal panel on the front side, 35 ... Metal panel on the back side.

Claims (1)

[Scope of utility model registration request] A conductive coil spring that is bent in an L-shape and has a protruding piece at the tip, a tightened part that is inserted into the winding part of this coil spring, and a tightened part that is arranged on both sides of the tightened part. a first plate body and a second plate body, the first plate body,
selectively making the second plate and the parts to be tightened a conductive material;
By arranging the first plate body and the second plate body, the L-shaped protrusion of the coil spring is pressed and compressed, and the to-be-tightened part is tightened. 1. A component attachment device characterized in that a first plate member and a second plate member are electrically coupled as desired.