JPH019101Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a jack used in the input/output circuits of electronic equipment such as radios and televisions as a receiving end of plugs for connecting acoustic components, etc. The present invention relates to a jack in which a conductive part is configured in a unit type.

As a conventional jack, one having a structure as shown in FIG. 1, for example, is known. In the figure, 1
1 is an insulating jack body, and this jack body 1 is provided with a plug insertion hole 2. The jack body 1 is provided with a conductive part, and this conductive part has a sleeve terminal 3 fixed to the inner peripheral surface of the plug insertion hole 2 and in contact with the plug conductive part, and a sleeve terminal 3 housed in the jack body 1 and in contact with the plug conductive part. A plurality of spring contact members 4, 4, and a plurality of terminals 5, 5, connected to the sleeve terminal 3 and the contact members 4, 4, respectively, and protruding from the outer wall of the jack body 1.
It consists of 5.

Then, by inserting the conductive part 11 of the plug 10 into the plug insertion hole 2, the sleeve terminal 3 and the contact members 4, 4 come into contact with the plug conductive part 11 by the spring force, and the transmission and reception of electrical signals is performed. be exposed.

However, this type of jack requires a lot of effort to assemble the conductive parts such as the contact members 4, 4 due to its structure.
In the case of a small, multi-polar jack with a large number of 5's, the assembly becomes extremely complicated, resulting in poor contact after assembly and high costs.

The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and aims to provide a jack that is easy to assemble and has high reliability.

In order to achieve this object, the present invention has a conductive part configured as a unit consisting of an insulating case, a contact member housed in the insulating case, and a terminal connected to the contact member, and The conductive part is inserted into and removed from the conductive part insertion hole provided in the conductive part insertion hole.

Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that the same elements as in FIG. 1 are given the same reference numerals.

FIG. 2 is a perspective view of the jack according to this embodiment;
FIG. 3 is a cross-sectional view of this jack. In the figure, 21 is a jack body formed by machining or molding using an insulating material such as plastic, and this jack body 21 has a plug insertion hole 22 and a plurality of holes that reach the plug insertion hole 22 from the outer surface. Conductive part insertion holes 23, 23, 23 are provided. Further, each conductive part insertion hole 23 has an engaging recess 24 formed on its inner circumferential surface, and a conductive part 30 having a unit configuration inserted into the conductive part insertion hole 23 is locked.

FIG. 4 is a cross-sectional view of the conductive section 30. This conductive part 30 includes an insulating case 31 formed by machining or molding using an insulating material such as plastic, and a copper alloy housed in the insulating case 31 and protruding from an opening 32 on the front end surface of the insulating case 31. a coiled spring 34 made of spring steel or the like that applies outward elasticity to the contact 33 housed in the insulating case 31;
The terminal 35 is connected to the contactor 33 via a spring 34 and protrudes from the outer surface of the insulating case 31. The outer surface of the insulating case 31 has an engaging protrusion 36 that engages with the engaging recess 24. is installed protrudingly. The contact member 33, the spring 34, and the terminal 35 constitute a contact member.

To manufacture a jack configured as described above, the jack body 21 and the conductive part 30 are made in advance, and the conductive part 30 is inserted into the conductive part insertion hole 23 of the jack body 21 with its contact 33 at the head. It's crowded. Then, the engaging convex portion 36 becomes the tapered surface 36a.
is pushed into the insertion hole 23 through the engaging recess 2.
Lock in 4. As a result, the conductive portion 30 is fitted into the insertion hole 23 with the tip protrusion of the contactor 33 protruding into the plug insertion hole 22.

When the conductive part 11 of the plug 10 is inserted into the plug insertion hole 22 of the jack assembled in this way, the contact 33 is inserted by the elastic force of the spring 34.
is pressed against the conductive part 11, and the plug conductive part 11 and the terminal 35 are electrically connected via the contactor 33.

According to this embodiment, the conductive part 30 in which the contact member is assembled into the insulating case 31 is connected to the jack body 2.
1, and the jack is constructed by fitting the conductive part 30 into the conductive part insertion hole 23 of the jack body 21.
The conductive part 30 can be accurately attached to the jack body 21 by simply inserting the conductive part 0 into the conductive part insertion hole 23. This makes the assembly process simple and accurate. Since it is constructed according to the formula, it has the advantage that it can be easily replaced in the event of a defect.

5 and 6 show a conductive part according to another embodiment of the present invention, the structure of which is different from that shown in FIG. 4.

That is, the conductive part 40 in FIG. 5 uses a substantially oblong plate spring 44 instead of the coiled spring 34 in FIG. 4, and the plate spring 44 biases the contactor 33 outward. It is a contact member. Even if the leaf spring 44 is used in this way, the same operation and effect as described above can be achieved.

The conductive part 50 shown in FIG. 6 also serves as a contact by means of a substantially oblong plate spring 53, which is accommodated in the insulating case 31 with its upper end protruding from the opening 32. Then, the upper end portion of the leaf spring 53 is brought into direct pressure contact with the plug conductive portion 11. This has the advantage of simplifying the structure.

Note that the conductive parts 30, 40,
50 are all constructed in a unit type, but the shapes of the conductive parts 30, 40, 50 and the conductive part insertion hole 23 are not limited to those shown in FIGS. 4 to 6, and may have a circular cross section, for example. Even if it is formed, the same operation and effect as in the above embodiment can be achieved. Furthermore, instead of the engaging protrusion 36 protruding from the outer surface of the conductive parts 30, 40, 50, an engaging concave part is bored, and the engaging convex part to be engaged with this concave part is inserted into the conductive part. It may be made to protrude from the inner peripheral surface of the hole. Furthermore, the insulating case 31 is sealed with an elastic packing or the like between the openings 32 of the conductive parts 30, 40, and 50 and the contact members.
If the structure is sealed, it is possible to prevent spoilage caused by moisture and improve durability and reliability. Furthermore, it goes without saying that the contact member may be formed integrally with a leaf spring so that the tip becomes a contact and the rear end becomes a terminal.

As explained above, according to the present invention, the contact member is incorporated into the insulating case to form the conductive part, and the conductive part is fitted into the conductive part insertion hole of the jack body. The conductive part can be easily and accurately attached to the structure, and the assembly process can be simplified and costs can be reduced accordingly.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a conventional jack, Fig. 2 is a perspective view of a jack according to an embodiment of the present invention, Fig. 3 is a cross-sectional view of Fig. 2, and Fig. 4 is a cross-sectional view of Fig. 2 and Fig. 3. 5 and 6 are cross-sectional views of conductive parts according to other embodiments of the present invention. 21... Jack body, 22... Plug insertion hole, 23... Conductive part insertion hole, 30... Conductive part, 3
DESCRIPTION OF SYMBOLS 1... Insulating case, 32... Opening, 33... Contact member, 34... Coiled spring, 35...
Terminal, 44, 53...plate spring.

Claims (1)

[Scope of utility model registration request] A jack comprising an insulating jack body having a plug insertion hole, and a contact member provided in the jack body and making contact with a plug inserted into the plug insertion hole, the jack body having a plug insertion hole. A jack characterized in that a plurality of conductive part insertion holes reaching the holes are bored, and a conductive part having a contact member protruding from the front end surface of an insulating case is fitted into the conductive part insertion holes so as to be freely insertable and removable.