JPS6037811Y2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector for flat cables, and in particular, it is an object of the present invention to provide a connector for flat cables that is compact, ensures reliable contact between the cable core and the contact piece, and has little deformation of the contact piece.

Connectors for flat cables do not require the troublesome work of connecting wires one by one, such as soldering or wrapping, to connect flat cables and connectors, and can easily connect multiple sets of wires. It has the great effect of being able to connect two pieces at once.

Therefore, in this type of connector, a plurality of contact pieces each having a fork-shaped or three-pronged contact part are mounted in parallel on an insulating base according to the pitch of the core wire of the flat cable, and the contact parts are The core wire is pushed through the sheath of the flat cable, and the core wire is held between forks or three prongs to electrically connect the core wire and the contact piece.

However, in the fork-shaped contact piece, since the contact surface of the core wire is a punched broken surface, there are problems in that the contact area is small or the broken surface is sharp, causing damage to the core wire.

In addition, the pitch of the core wires of this type of flat cable is, for example, 1.27 mm, and for this reason, the contact piece must be made small.In the case of a three-pronged contact piece, the three prongs are small, so the strength is increased. There was a problem that sufficient contact with the core wire was not obtained and the contact with the core wire was incomplete.

The object of the present invention is to provide a connector that overcomes the drawbacks of these conventional contact pieces.

The present invention will be explained below based on the embodiments shown in the drawings. 1 is a flat cable in which a plurality of core wires 1a are covered with an insulating coating 1b; 2 is an insulating base; 3... . . . are contact pieces made of a metal material that are mounted in parallel on the base 2 by embedding or the like, and the contact pieces have a terminal portion 3a and a contact portion 3b, and the contact portion 3b has a pair on both sides. Support part 3
c, 3c, a connecting part 3d connecting the tips of the supporting parts 3c, 3C, and a cut-and-raised part 3e provided in the center, and the tips of the joint part 3d and the cut-and-raised part 3e are sharp. Moreover, the distance between the supporting portions 3c, 3c and the cut and raised portion 3e is slightly smaller than the thickness of the core wire 1a.

Then, to connect the cable 1 to the contact piece 3...
The cable 1 is press-fitted into the contact portion 3b from above the contact piece 3.

Then, the sheathing 1b of the cable 1 is torn between the tip of the joint portion 3d and the tip of the cut and raised portion 3e of the contact piece 3, and when the cable 1 is further press-fitted, the support portion 3cy3c bites into the core wire 1a side. It comes into contact with the core wire 1a.

A connector is constructed by connecting the cable 1 and the contact piece 3 in this manner.

FIG. 4 shows another embodiment of the present invention, in which the contact portion 3b is flat in the previous embodiment, but in this embodiment,
The contact portion 3b is arc-shaped, and the other configurations are the same as those in the previous embodiment, so the same numbers are given to the same parts and the explanation will be omitted here.

That is, according to the present invention, since the pair of support parts 3c, 3c provided on the contact piece 3 are provided with the joint part 3d that connects the tips, the strength of the support parts 3c, 3c is increased, and deformation is prevented. Since the contact with the core wire 1a of the cable 1 is small, and the strength of the support part 3c can be increased by the joint part 3d, the width of the contact part 3b and the support parts 3c, 3c can be reduced, making it compact. can be provided.

[Brief explanation of the drawing]

All of them relate to the present invention; Fig. 1 is an exploded perspective view, Fig. 2 is a perspective view of the main part when the contact piece and cable are connected, Fig. 3 is a side view of the main part, and Fig. 4 is the main part of the present invention. Another embodiment is shown in which Figure A is a perspective view of the contact portion of the contact piece, and Figure B is a side view of the same. 1...Cable, 3...Contact piece, 1a
... Core wire, 3a ... Terminal part, 1b ...
...Coating, 3b...Contact part, 2...
・Base, 3c...Support part.

Claims (1)

[Scope of utility model registration request] A pair of support parts made of metal plates and connected by a joint part with a pointed tip, and a cut and raised part with a sharp tip formed approximately in the center of the pair of support parts, and the tip is parallel to the support part. 1. A connector characterized in that contact pieces each having a cut-and-raised portion facing toward the opposite direction are mounted in parallel on an insulating base.