JPS6021893Y2 - Contact for connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a contact for a connector, and more particularly, it is an object of the present invention to provide a contact for a connector that is securely prevented from being removed from a contact insertion hole of a connector base.

As shown in FIG. 2, conventional contacts for connectors are made by integrally punching out a contact portion 5 and a connecting portion 6 from a metal plate such as brass, and forming a cut and raised piece 2 to form a cylindrical contact portion 5. A connector contact 1 is known which has a bent female contact portion and is connected to a lead wire 7 at the connecting portion 6.

As shown in FIG. 1, the connector contact 1 can be freely inserted into a connector base a made of synthetic resin, which has a step C formed when the contact is inserted into the hole, and cannot be removed from the contact insertion hole. As a stop means, the cut-and-raised piece 2 formed into a rectangular shape is provided.

When this connector contact 1 is inserted into the fitting hole, the cut and raised piece 2 is pushed into the window hole 3 opened by the formation of the cut and raised piece 2, and after insertion, its own elasticity It returns to its original position and engages with the stepped portion C to prevent removal.

However, in this type of connector contact, when the cut and raised piece 2 is formed, the edges formed on the periphery of the cut and raised piece 2 and the opening periphery of the window hole 3 remain. When the raised piece 2 is pushed into the window hole 3, the edge may prevent the raised piece 2 from returning or cause permanent deformation, causing the cut and raised piece 2 to be prevented from being pulled out. There were negative effects such as the inability to fulfill the role.

Therefore, the present invention is intended to eliminate the above-mentioned disadvantages. To explain the present invention, FIGS. 3 and 4 show connector contacts according to the present invention, and the connector contact 11 is similar to the conventional connector contact 11 described above. It is assembled into the same connector base as in the example.

This connector contact is constructed in the same manner as the above-mentioned conventional example, but is further made by crushing both right-angled corner edges of the window hole 13 formed by forming the cut-and-raised piece 12 into a rectangular shape. The opening of the window hole 13 is made smaller than the cut and raised piece 12 by forming the R-shaped projecting portion 14 extending inward.

By providing the projecting portion 14 and making the opening of the window hole 13 smaller than the cut-and-raised piece 12, when the present connector contact 11 is inserted into the hole into which the connector base a is inserted, , the cut and raised piece 12 is no longer pushed into the window hole 13, and therefore, after insertion, it reliably returns to its original position due to its elasticity and is securely engaged with the stepped portion C without causing any permanent deformation. It is possible to stop the extraction.

Note that the position where the protruding portion 14 is provided is not limited to both corner edges of the window hole 13, but may be at the peripheral edge of the window hole 13. It is better to avoid it.

The connector contact according to the present invention is constructed as described above, and is provided with a projecting portion extending inward by crushing the edge at the opening edge of the window hole opened by forming the cut and raised piece. This makes it possible to provide a highly reliable connector contact that can reliably prevent the connector base from being pulled out of the contact insertion hole.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing a conventional connector contact assembled into a connector base, Fig. 2 is a perspective view showing a conventional connector contact, and Fig. 3 is a connector contact according to the present invention. FIG. 4 is an enlarged sectional view of the projecting portion. 1.11...Connector contact, 2,12
...... cut and raised piece, 3, 13 ... window hole, 4
...... Window hole corner, 5, 15... Contact part,
6, 16...Connection part, 7.17...Lead wire, 14...Protrusion part, a...Connector base, b... ...Contact fitting hole, C...Curved step part.

Claims (1)

[Scope of utility model registration request] A contact for a connector, which is provided with a cut-and-raised piece for preventing removal that can be freely inserted into a contact-fitting hole of a connector base made of synthetic resin and that can be freely engaged with a step in the contact-fitting-hole. 1. A contact for a connector, characterized in that an opening edge of a window hole opened by forming a strip is provided with an overhang portion that is expanded inward by crushing the edge.