JP2548613Y2 - Multi-pole plug - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a multi-pole plug used for a weak electric connection of an audio equipment or the like.

[0002]

2. Description of the Related Art Japanese Unexamined Utility Model Publication No. 3-48882 can be cited as a prior art.

[0003]

The prior art described above is a four-pole plug, and its use is narrow and limited. The present invention has been made in view of these points.
The purpose of the invention is to widen its application and use range, and in reality, it is possible to increase the number of plugs to eight.

[0004]

The plug body includes a first insulating collar positioned between the tip and the first ring, and a second insulating collar positioned between the first and second rings. The first insulating collar, the second insulating collar, and the third insulating collar are constituted by a third insulating collar positioned between the second ring and the sleeve. The fourth insulation collar at the place where the terminal made of steel is press-fitted is press-fitted and fixed.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a multipolar plug body, which is mainly a plug body 2
The fourth insulating collar C, into which the metal terminal 3 has been press-fitted, is press-fitted and fixed. The plug body 2 includes a first insulating collar 6 positioned between the chip 4 as a conductor and the first ring 5, and a second insulating collar positioned between the first ring 5 and the second ring 7. 8 and a third insulating collar 10 positioned between the second ring 7 and the sleeve 9. The first insulating collar 6, the second insulating collar 8, and the third insulating collar 10 are identical. Injected and solidified with synthetic resin.

A knurl 11 is cut in a part of the outer periphery of the sleeve 9 and a press-fitting hole portion 12 of the fourth insulating collar C where the terminal 3 has been press-fitted in advance is fitted and integrally formed. is there. Reference numeral 13 denotes a slit slot provided in the fourth insulating collar C for press-fitting the terminal 3 therein. In the present embodiment, two slots are provided, but four or six slots may be provided.
Reference numerals 14 and 15 denote cut-and-raised pieces formed in the terminal 3.

Next, the order of assembling the product of the present invention will be described. The terminal 3 is press-fitted into the slot 9 of the fourth insulating collar C, into which the knurl 11 of the plug body 2 formed by resin molding is cut.
Is fitted and fixed. Thereby, the multipolar plug body 1 is completed.

[0008]

[Effects of the Invention] Since the fourth insulating collar C where the terminal is press-fitted is fitted and fixed to the plug body 2 molded with synthetic resin, a multipolar plug body can be formed, and its application range is widened. . Also, the plug body 2 and the fourth insulating collar C
Because of the fixed type, there is no poor contact and the stability of current characteristics is improved as compared with the conventional insertion rotary type.

[Brief description of the drawings]

FIG. 1 is a front view of the product of the present invention.

FIG. 2 is a partial vertical front view of the product of the present invention.

FIG. 3 is a left side view of the product of the present invention.

FIG. 4 is a right side view of the product of the present invention.

FIG. 5 is a partial longitudinal front view of a fourth insulating collar.

FIG. 6 is a left side view of a fourth insulating collar.

FIG. 7 is a right side view of a fourth insulating collar.

FIG. 8 is an enlarged plan view of a terminal.

FIG. 9 is an enlarged front view of the terminal.

FIG. 10 is an enlarged left side view of the terminal.

FIG. 11 is an enlarged right side view of the terminal.

[Explanation of symbols]

 2 Plug body 3 Terminal C Fourth insulating collar 4 Tip 5 First ring 6 First insulating collar 7 Second ring 8 Second insulating collar 9 Sleeve 10 Third insulating collar

Claims (2)

(57) [Scope of request for utility model registration] A first insulating collar positioned between a tip and a first ring, and a second insulating collar positioned between the first ring and a second ring. 8 and a third insulating collar 10 positioned between the second ring 7 and the sleeve 9, wherein the first insulating collar 6, the second insulating collar 8, and the third insulating collar 10 are made of the same synthetic resin. And the sleeve 9
A multi-pole plug in which a fourth insulating collar C into which the terminal 3 has been pressed is fitted and fixed. 2. A multi-pole plug according to claim 1, wherein a plurality of said terminals are arranged in an arc on the fourth insulating collar as viewed from the side.