JPS5815910B2 - Manufacturing method of insulation displacement type contact for covered electric wire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a pressure welding type socket contact in which pressure is applied to a covered wire to break the covering of the wire to electrically connect the wire.

Conventionally, this type of pressure welding type socket contact usually has a pin contact insertion guide mechanism made of an insulating material, or a socket contact made of multiple divided flange pieces, resulting in a complex structure and time-consuming manufacturing process. There were disadvantages such as high cost.

The present invention eliminates the above-mentioned drawbacks, has a simple structure, is easy to manufacture, and can be provided at low cost.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be explained below.

First, as shown in FIG. 2, Y-shaped grooves 2, 2 are cut in the axial direction at both ends of a strip-shaped metal plate 1 cut to a required size.
will be established.

Incidentally, the sloped portion 2a of the groove is formed into a suitable blade-like portion at a cut portion of the covering of the covered wire.

The portion 2b has a width sufficient to electrically connect and maintain the core wire (conductor) portion of the wire.

3 is a bin guide hole provided in the center of the metal plate 1, the part indicated by the dotted line is the bottom part C, and side pieces A and B are formed on both sides.

L-shaped grooves 4.degree. 4 are symmetrically provided on both side pieces A and B, respectively.

Next, as shown in FIG. 1, both sides A and B of the strip metal plate 1 are bent at right angles in the same direction around the bottom C, and the lower portions of the cross-shaped grooves 4, 4 are bent inward. The bending pin contact spring portions 5, 5 are constructed by doing so.

6 is a contact holding portion. FIG. 3 shows a contact of the present invention in which a pin contactor 7 is inserted into the guide hole 3 from below, and a covered wire 8 is press-fitted into the Y-shaped grooves 2, 2 from above as shown by the arrow.
Shows the state in which the core wires (conductors) are connected.

The dotted line portion in the figure is the covering portion.

According to the manufacturing method of the present invention, it is sufficient to simply perform the necessary processing on a single band-shaped metal plate and simply bend it, so there is little loss of material, and the structure is extremely simple and easy to assemble. It is extremely inexpensive because it does not require the insulating material of the guide mechanism that is normally used, and the pin contact passes through the guide hole and is pressed by the left and right contact spring parts, increasing contact reliability. When press-fitted, the coating is naturally removed and electrical connection is automatically established, which has the advantage of significantly improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is an assembled perspective view of a contact according to an embodiment of the present invention;
FIG. 2 is an exploded view of the same, and FIG. 3 is an explanatory view of the state of use. 1 is a band-shaped metal plate, 2 is a Y-shaped groove, 3 is a bin guide hole, 4 is an L-shaped groove, 5 is a pin contact spring part, 6 is a holding part, 7 is a pin contact, 8 is an electric wire, A, B is the side piece, C is the bottom part.

Claims (1)

[Claims] 1. Y-shaped grooves 2 in the axial direction facing both ends of the band-shaped metal plate 10;
2 and a bottom part C having a bin guide hole 8 in the center;
Side pieces A and B are formed at both ends thereof, and an L-shaped groove 44 is symmetrically provided approximately in the center of each side piece A and B, and both side pieces A and B are moved in the same direction with the bottom C as the center. A method of manufacturing a pressure welding contact for a covered electric wire, characterized in that the bending pin contact spring portions 5, 5 are formed by bending the bent pin contact spring portions 5, 5 by bending the bent pins at right angles to each other and bending the lower portions of the above-mentioned cross-shaped grooves inwardly. 2. The method of manufacturing a press-contact type contact for a covered electric wire according to claim 1, wherein the inclined surface of the Y-shaped groove is a blade portion capable of cutting the covering of the covered electric wire.