JPS6015266Y2 - plug - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a plug useful for car radio antenna plugs, etc., and is designed to be able to be connected to a socket with high precision.

As shown in Fig. 1, the conventional plug has a socket 1 consisting of a grounding part 3 fixed to a case or chassis, etc. and a receiving part 2 floating with respect to the grounding part 3.
As shown in the figure, an electrode 4 corresponding to the receiving part 2, a grounding piece 5,
After the feeder 6 is electrically connected to the electrode 4 and the grounding piece 5, an insulating part 7 is formed to cover the necessary parts, and the part of the grounding piece 5 that contacts the grounding part 3 has an inverted U cross section as shown in the opening in FIG. It is shaped like a letter.

Therefore, the connection between the grounding piece 5 and the grounding part 3 is a frictional connection that utilizes the elastic effect of the grounding piece 5, but due to variations in the elasticity of the grounding piece 5 itself, there is a gap between the grounding piece 5 and the grounding part 3. It has the disadvantage of causing poor contact.

The present invention eliminates these drawbacks, and one embodiment thereof will be described below with reference to FIGS. 3 to 5.

Here 3. 4.6. 7 is the same as the one with the same reference numerals in FIGS. 1 and 2, and the grounding piece 50 corresponding to 5 in FIG. It has protrusions 51 that bite into the inner surface of the grounding part 3 on both sides.

That is, when this plug is adapted to the socket 2, the protrusion 51 provided on the grounding piece 50 scrapes the inner surface of the grounding part 3 of the socket 1, so that good contact can be made between the two.

Therefore, since the grounding piece 50 can reliably contact the socket 1, contact failure will not occur, and in order to reduce contact resistance, the inner surface of the socket 1
There is no need to apply any means such as plating the inner surface of the

[Brief explanation of drawings]

Fig. 1 is a sectional view of a conventional antenna plug, Fig. 2 A is a perspective view thereof, the opening in the same figure is a sectional view of one of its parts, Fig. 3 is a side view of a plug in an embodiment of the present invention, and Fig. 4 is a sectional view of a conventional antenna plug. The figure is a partial perspective view, and FIG. 5 is a sectional view. 1...Socket, 3...Ground part, 5
0...Ground piece, 51...Protrusion portion.

Claims (1)

[Scope of utility model registration request] It has a cylindrical insulating part, a ground piece protruding from the outer peripheral surface of the insulating part, and protrusions integrally formed on both sides of the ground piece, and the insulating part is connected to the cylindrical part of the socket. A plug characterized in that when inserted into the grounding part, the protrusion of the grounding piece and the inner surface of the grounding part are brought into contact.