JPS6010437B2 - Manufacturing method for plug-in contacts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plug-in connection contact in which a pin-type terminal or plug is removably inserted into a socket portion (or receptacle portion) to make electrical contact. The present invention relates to a method of manufacturing a plug-in contact that includes a freely movable spring piece in a socket part for firmly pressing a plug and maintaining good electrical contact with the socket part.

In the above-mentioned spring-equipped plug-in contact, as disclosed in Utility Model Publication No. 37-17 and Samurai Publication No. 45-17274, the contact body and the spring piece are manufactured separately, and the contact During the molding process of the main body or after the molding process is completed, a separately manufactured piece is inserted into the socket part of the contact body.
Generally, this type of contact is very fine, so there are problems with the workability of the process of assembling the spring piece as described above, and there are various difficulties.

The present invention has been made to solve the above-mentioned problems.The contact main body and the spring piece are integrally made of the same material, and after the contact molding process is completed, the spring piece is separated from the main body and the spring piece is inserted into the socket. The feature is that the step of assembling a spring piece is omitted by locking and holding the spring piece in a freely movable manner.

Embodiments of the present invention will be described below based on the drawings. 1 and 2 show a molded contact material, and the contact material includes a socket member 1 and a socket member 1.
It consists of wire connecting members 2a, 20 with a ridge on one end, and a spring part 3 with a ridge on the other end of the socket member 1, and each member is made by punching out a thin plate of a relatively elastic metal material, such as a coin. The socket member 1 is integrally constructed, and the central part of the socket member 1 is provided with a notch 4 for locking the spring piece and a tongue piece 5, and furthermore, on both sides of the front half of the spring member 3, there are ears 6 for positioning and guide pieces. Projection piece 7
is provided. Although only one contact material is shown in the figure, it is actually formed by continuously punching out a strip-shaped thin metal plate. First, the spring member 3 made of the contact material formed as described above is bent so as to overlap the center part of the socket part 1 as shown in FIG. The spring piece 31 is formed by bending it into a chevron shape.

At this time, the lug 6 of the spring piece 31 is positioned opposite the notch 4 of the socket member 1, and the free end 32 of the spring piece 3 is bent upward so that it can slide freely relative to the socket member 1. sliding into contact with. Next, as shown in FIGS. 4 to 6, both sides of the socket member 1 are bent up, and the bottom 11 and the side walls 12 that stand up on both sides of the bottom 11 and the upper sides of both side walls 12 are bent inward. Top portion 13 formed by butting together
A rectangular cylindrical socket part 10 is formed by this, the spring piece 3 is confined within the socket part 10, and the lug piece 6 is locked in the notch part 4 of the socket part 10, and the wire connecting members 2a, 2b are further fixed. The mouth ring portions 20a, 2 are bent into a U shape.
Form 0b.

Next, as shown in FIGS. 7 and 8, the folded portion of the spring member 3 protruding from the tip of the bottom 11 of the socket portion 10 is cut at a position close to the socket portion 10 to remove the spring 3 from the socket portion 10. Separate.

The socket part 10
A spring-loaded plug-in connection contact is completed. In the figure, reference numeral 14 denotes a recessed portion provided for reinforcing the top portion 13 of the socket portion 10.

In the above embodiment, the spring piece 3 is held in the notch 4 of the socket part 10 via the ears 6 protruding from both sides of the center part. The locking and holding structure of 3 is not limited to this structure, and various modifications are possible.

FIG. 9 shows an example of the use of a plug-in contact manufactured by the method of the present invention, in which a pin-shaped terminal or plug 15 inserted into the socket part 10 is inserted into the top 13 of the socket part 10.
It is held between the socket 10 and the spring piece 3, and is firmly pressed by the elastic force of the spring piece 3 to maintain good electrical contact with the socket part 10.

As explained above, according to the method of the present invention, the spring piece provided in the socket is integrally made of the same material as the contact body, and after the molding process of the spring piece, the socket part, and the mouth ring part is completed, the spring piece is Since it is separated from the contact body and held freely within the socket, the process of assembling the spring piece, which is manufactured separately from the contact body, into the socket part, as in the past, can be omitted, which simplifies the manufacturing process. Further, since the contact body and the spring piece are integrally made of the same material, the material cost is low, and the overall manufacturing cost of the spring-equipped plug-in connection contact can be significantly reduced.

[Brief explanation of drawings]

The drawings illustrate embodiments of the method of the present invention; FIG. 1 is a plan view of the contact material, FIG. 2 is a front view thereof, and FIG.
A front view of the process, Figures 4 and 5 are a plan view and a front view of the second process, Figure 6 is an enlarged cross-sectional view taken along line 6-6 in Figure 5, and Figures 7 and 8 are completed. FIG. 9 is a partially vertical front view showing the contact in use. 1...Socket member, 2a, 2b...Wire connection part village, 3...
・Spring member, 3. ... Spring piece, 4... Notch, 6.
...Ear piece, 10...Socket part, 20a, 20b...Muzzle part. Mackerel, Figure Z, Figure 3, Figure 4, Figure 7, Figure Z, Figure 3, Figure 4, Figure 7, Figure 4

Claims (1)

[Claims] 1 A socket member is made from a relatively elastic thin metal plate,
A wire connecting member connected to one end of the socket member and a spring member connected to the other end of the socket member are integrally punched out, and the spring member is bent so as to overlap the center portion of the socket member, A spring piece is formed by curving a portion facing the socket member, and then the socket member is formed into a cylindrical socket portion to confine and lock the spring piece therein, and the wire connection The member is bent into a U-shape to form a mouth ring portion, and then the folded portion of the spring member is cut to separate the spring piece from the socket portion, and the spring piece is freely engaged within the socket portion. A method of manufacturing a plug-in connection contact characterized by holding it in place.