JPH024460Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a jack for inserting a short-headed plug of an earphone or the like of a low-power audio device to switch the circuit.

[Conventional problems]

Conventionally, this type of jack has a metal cylinder having a short-headed plug insertion opening at one end, a cylindrical body inserted with the proximal end protruding from the other end of the metal cylinder, and a cylindrical body inserted from the base surface of the proximal end. a first terminal and a second terminal, each of which is made of a thin plate-like material, through which the lead wire connection portion protrudes;
A coil spring is installed in the short-head plug insertion opening of the metal tube or cylindrical body to prevent the short-head plug from falling out, and conventional terminals have a separate thin plate for insulation. An insulator was incorporated, but it was done by hand, and because each part was small, the work was complicated and time-consuming.

[Purpose of invention]

In view of the above-mentioned problems, the present invention has been developed as a result of intensive research and has solved the problems all at once, and has greatly reduced the number of parts and the assembly process.

[Structure of the idea]

The structure of the present invention consists of a metal cylinder, a cylindrical body inserted into the metal cylinder, and a first terminal and a second terminal each made of a thin plate-like material, and the first terminal is connected to the base end side of the penetrating piece. The lead wire connection piece is extended through the support piece, the contact piece is formed on the distal end side through the bent piece, and the second terminal is formed with the lead wire connection piece on the proximal end side of the penetrating piece through the support piece. A bent piece is formed on the distal end side, and a fulcrum part is provided which is inscribed in the inner periphery of the cylindrical body. A gap portion is provided between the portion and the cylindrical body, a curved portion is formed between the tip portion and the fulcrum portion, and further,
An upright piece is formed in the center from the vicinity of the penetrating piece to the vicinity of the tip part, and the tip of the upright piece is provided with the first
A contact is formed to contact the contact piece of the terminal, and the second terminal is made of a metal material of JIS standard C170/P.

[Example of idea]

Hereinafter, the present invention will be explained based on the drawings.

Fig. 1 is a partially sectional plan view for explaining the inside of the jack of the present invention without the short-head plug inserted, and Fig. 2 is a plan view with the short-head plug inserted. FIG. 3 is a perspective view of the second terminal.

The present invention is a jack for inserting a short head plug A of audio equipment for consumer or business use, and includes a long metal tube 1 having a short head plug insertion opening 11 at one end, and the metal tube 1. A cylindrical main body 2 is inserted with a proximal end portion 22 integrally formed with a base surface 21 protruding from the other end, and lead wire connecting portions 31 and 41 are protruded from the base surface 21 of the proximal end portion 22. In the jack consisting of a first terminal 3 and a second terminal 4, each of which is made of a thin plate-like material and is penetrated through the jack, the first terminal 1 is connected to the base surface 2.
A lead wire connection piece 31 is extended to the proximal end side of the penetrating piece 33 that penetrates through the cylindrical body 2 via the support piece 32, and a contact piece 35 is attached to the distal end side in close contact with the inner periphery of the cylindrical body 2. The second terminal 4 is formed via a bent piece 34 and a penetrating piece 43 that penetrates the base surface 21.
A lead wire connection piece 41 is extended to the proximal end side of the body via a support piece 42, and a bent piece 44 is formed to the distal end side of the cylindrical body 2 to form a fulcrum portion that becomes a fulcrum in contact with the inner periphery of the cylindrical body 2. 45, the distal end portion 46 extends from the fulcrum portion 45 to the vicinity of the short head plug insertion opening 23 at the distal end of the cylindrical body 2, and between the distal end portion 46 and the inner circumference of the cylindrical body 2, A gap portion 5 is provided in which the tip portion 46 of the second terminal 4 can freely move, and the curved portion fits into the fitting groove A1 of the short head plug A when the short head plug A is inserted between the tip portion 46 and the fulcrum portion 45. The portion 47 is formed by curving, and the tip portion 4 is further formed in the vicinity of the penetrating piece 43.
6 to the center of the second terminal 4 near the tip 46.
An upright piece 48 is formed by cutting out a long U-shaped groove so that the sides are branched, and a contact 49 that contacts the contact piece 35 of the first terminal 3 is formed at the tip of the upright piece 48. The cylindrical main body 2 is molded from an insulating plastic resin, and the second terminal 4 is made of a metal material conforming to JIS standard C170/P that is conductive and has appropriate elasticity.

That is, it consists of a metal tube 1 of the present invention, a cylindrical body 2, a first terminal 3, and a second terminal 4,
The metal cylinder 1 also serves as a terminal on the ground side, and is a long metal cylinder with a short head plug insertion opening 11 formed at one end, and the cylindrical body 2 is molded from an insulating plastic resin. The distal end side is provided with an open short-headed plug insertion port 23 that communicates with the short-headed plug insertion port 11 of the metal tube 1, and the proximal end side is provided with a short-headed plug insertion port 23 that communicates with the short-headed plug insertion port 11 of the metal cylinder 1. A surface 21 is formed, and through holes 24, 24 are provided in the base surface 21 through which the first terminal 3 and the second terminal 4 pass through, respectively, at appropriate intervals.

Next, to explain the first terminal 3, the first terminal 3, which is a thin plate-like material, is made of a conductive metal material, and has a penetrating piece 33 that penetrates the base surface 21 of the base end portion 22 of the cylindrical body 2. A lead wire connection piece 31 is extended to the base end side of the penetrating piece 33 via a support piece 32,
A contact piece 35 is formed on the tip side through a bending piece 34 and is disposed inside the cylindrical body 2 so as to be in close contact with the inner periphery of the cylindrical body 2. Each piece is substantially parallel, and each piece 31, 33, 35 is connected with a supporting piece 32 and a bent piece 34.

Next, the second terminal 4 will be explained. As shown in FIG.
JIS standard with longer conductivity and appropriate elasticity
The penetrating piece 4 is made of C170/P metal material and penetrates the base surface 21 of the base end 22 of the cylindrical body 2.
3, a lead wire connection piece 41 is extended to the proximal end side of the penetrating piece 43 via the support piece 42, and a bent piece 44 is provided to extend to the distal end side. A fulcrum part 45 is provided which is in contact with the inner periphery of the cylindrical body 2 and serves as a fulcrum for the free movement of the distal end part 46 which extends further. A gap portion 5 is provided between the tip portion 46 and the inner periphery of the cylindrical body 2 so that the tip portion 46 of the second terminal 4 can freely move. a curved portion 47 that fits into the fitting groove A1 of the short-headed plug A when the short-headed plug A is inserted between the tip portion 46 and the fulcrum portion 45; An upright piece 48 is formed by cutting a long U-shaped groove so that the side of the tip 46 branches from the vicinity to the center of the second terminal 4 to the vicinity of the tip 46, and to the tip of the upright piece 48. is a contact 49 that contacts the contact piece 35 of the first terminal 3;
was formed.

In the jack of the present invention, the through pieces 33, 43 of the first terminal 3 and the second terminal 4 are passed through the through holes 24, 24 of the cylindrical body 2, and the respective lead wire connection parts 31, 41 are connected to the cylindrical body. protruding toward the base end side of the shaped main body 2;
The tip end side of each is installed inside the cylindrical body 2, the contact point 49 of the second terminal 4 contacts the contact piece 35 of the first terminal 3, and the tip end portion 46 of the second terminal 4 is movably inserted into the gap portion 5. The cylindrical main body 2 is inserted with the base surface 21 of the proximal end 22 protruding.

Insert the short head plug A into the jack into the insertion ports 11 and 2.
3, the tip of the short-headed plug A first hits the curved portion 47 side of the second terminal 4, and when it is further pressed and inserted, the tip of the short-headed plug A slides while pressing against the surface of the second terminal 4. The tip portion 46 of the second terminal 4
is moved to the gap part 5 using the fulcrum part 45 as a fulcrum,
Furthermore, when inserted, it comes into contact with the upright piece 48 and the upright piece 48
The contact 49 of the second terminal 4 and the contact piece 35 of the first terminal 3 are separated from each other, and the first terminal 3 and the second terminal 4 are electrically connected to each other in the circuit. The short-headed plug A and the second terminal 4 are electrically connected, and the ground side is electrically disconnected by the contact between the end surface of the metal tube 1 and the base end of the short-headed plug A. The curved portion 47 provided on the second terminal 4 is fitted into the fitting groove A1 of the short-headed plug A, and the short-headed plug is connected by the appropriate elastic force of the material of the second terminal 4. This securely locks A so that it does not fall off.

[Effect of idea]

The jack of the present invention has the above-mentioned structure and the second terminal is made of a metal material compliant with JIS standard C170/P that is conductive and has appropriate elasticity. It eliminates the body, reduces the number of parts, greatly shortens the assembly process, and has the same functions as conventional products, providing revolutionary and remarkable effects and practicality. It is something that you have.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional plan view illustrating the inside of the jack of the present invention in a state in which a short head plug is not inserted. FIG. 2 is a plan view of the short-headed plug inserted. FIG. 3 is a perspective view of the second terminal. A... Short head plug, A1... Fitting groove, 1... Metal tube, 11... Short head plug insertion port, 2... Cylindrical body, 21... Base surface, 22... Base end portion, 23 ... short head plug insertion port, 24 ... through hole, 3 ... first terminal, 31 ... lead wire connection section, 32 ... support piece,
33... Penetration piece, 34... Bent piece, 35... Contact piece, 4... Second terminal, 41... Lead wire connection piece,
42... Support piece, 43... Penetration piece, 44... Bent piece, 45... Fulcrum part, 46... Tip part, 47...
Curved portion, 48... Standing piece, 49... Contact, 5...
gap area.

Claims (1)

[Claims for Utility Model Registration] (1) A long metal cylinder with a short-headed plug insertion opening formed at one end, and a proximal end portion integrally forming a base surface protruding from the other end of the metal cylinder. A jack consisting of a cylindrical main body inserted in a cylindrical body, and a first terminal and a second terminal, each of which is made of a thin plate-like material and penetrated through with a lead wire connection part protruding from the base surface of the base end part. 1 terminal has a lead wire connecting piece extending through a support piece to the base end side of the penetrating piece that penetrates the base surface, and a contact piece on the tip side with the lead wire connection piece being brought into close contact with the inner periphery of the cylindrical body. The second terminal is formed via a bent piece, and a lead wire connection piece is extended to the proximal end side of the penetrating piece that penetrates the base surface via a support piece, and a bent piece is formed to the distal end side. A fulcrum part is provided as a fulcrum in contact with the inner periphery of the cylindrical body, and the tip part extends from the fulcrum part to the vicinity of the short-headed plug insertion opening at the tip of the cylindrical body, and the tip part and A gap is provided between the inner periphery of the cylindrical body and the tip of the second terminal so that the tip of the second terminal can freely move, and when the short-headed plug is inserted between the tip and the fulcrum, it fits into the fitting groove of the short-headed plug. Further, a long U-shaped cut groove is cut and raised so that the vicinity of the tip part branches from the vicinity of the penetrating piece to the vicinity of the tip part to the center of the second terminal. form a piece,
A jack characterized in that a contact point that contacts the contact piece of the first terminal is formed at the tip of the upright piece. (2) The cylindrical body is molded from an insulating plastic resin,
The second terminal is electrically conductive and has appropriate elasticity.
The jack according to claim 1 of the utility model registration claim, characterized in that it is made of a metal material meeting JIS standard C170/P.