JPS5838533Y2 - jack - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a jack used in various electrical devices, and the object thereof is to provide an excellent small-sized jack that has a simple structure and is easy to assemble.

Generally, a groove for inserting a ground terminal, a groove for inserting a movable terminal, and a groove for inserting a fixed terminal are formed in the jack body, which is generally formed in a wave shape. A jack is known in which each base end of a fixed terminal is inserted and fixed, and a lid is attached to an opening of a jack body.

However, all of these types of devices simply have a linear groove for inserting the fixed terminal, and combined with the fact that the base end of the fixed terminal is very small, the fixed state of the fixed terminal is extremely difficult. It was unstable.

Therefore, it has conventionally been considered to form both the groove for inserting the fixed terminal and the base end portion of the fixed terminal inserted therein into an L-shape, thereby making the fixed state of the fixed terminal more stable.

However, in this type of device, both the groove and the base end of the fixed terminal are L-shaped, so if the fixed terminal is made smaller, it is very difficult to insert it into the groove and fix it. As a result, there was a problem in that the jack itself could not be miniaturized.

The present invention eliminates the above-mentioned drawbacks of the conventional jack, and provides an excellent jack that has a simple structure and is easy to assemble.

Hereinafter, the jack of the present invention will be explained with reference to drawings of one embodiment.

In the figure, 1 is a jack body formed in a wave shape and has a cylindrical part 2 for inserting a plug integrally formed at one end, 3 is a columnar body integrally formed inside the jack body 1 and protrudes from the bottom surface, 4 5 is a groove for holding the ground terminal formed between the columnar body 3 and one side plate 1a of the jack body 1;
6 is a ground terminal whose base end 5a is inserted into the groove 4 and whose leg 5b is led out through a hole formed in the bottom of the jack body 1, and 6 is the other side plate 1 of the jack body 1.
an L-shaped convex portion integrally formed to protrude inward from b;
7 is a groove formed between the convex portion 6 and the side plate 1b, and 8 is a leg portion 8 whose base end 8a is inserted into the groove 7. b
A movable terminal 9 is led out to the outside through a through hole formed in the bottom surface of the jack body 1, and a movable terminal 9 is integrally formed and protrudes inward from the side plate 1a of the jack body 1, facing the free end 8C of the movable terminal 8. 10 is a groove formed in the protrusion 9 in a direction substantially perpendicular to the free end 8C of the movable terminal 8; 11 is a groove formed in the center of the groove 10;
12 is a fixed terminal that is inserted into the groove 10 and whose leg portion 12a is led out through a through hole formed in the bottom surface of the jack body 1; 13 is a fixed terminal 12; Projections 14 and 15 formed on one side surface of the jack body 1 are engaged with the grooves 11 formed in the grooves 10 when the fixed terminal 12 is inserted into the grooves 10, respectively.
A pin 1 integrally formed on the side plate 1b and the columnar body 3.
6 is a lid that covers the opening of the jack body 1, 17 and 18 are through holes formed in the lid 16 and fitted with the pins 14 and 15, and 19 is a free end 8C of the movable terminal 8 and the jack body. This is a spring that is provided between the movable terminal 8 and the side plate 1b of the movable terminal 8 to press the free end 8C of the movable terminal 8 against the end surface of the fixed terminal 12 at all times.

In the above embodiment, the base end 5a of the ground terminal 5 is inserted and fixed into the groove 4, and the free end 5C faces the cylindrical part 2 for plug insertion.

The movable terminal 8 has a base end 8a inserted and fixed in the groove 7, and a free end 8C of the fixed terminal 1 inserted and fixed in the groove 10.
2, and is always pressed against the fixed terminal 12 by a spring 19.

Therefore, when a plug is inserted into the cylindrical part 2 for plug insertion, the central part of the movable terminal 8 is pressed by the tip of the plug, and the free end 8C of the movable terminal 8 is separated from the fixed terminal 12.

Each terminal of the plug is a ground terminal 5. It contacts the movable terminal 8 to establish an electrical connection.

By the way, according to the above embodiment, the jack body 1 is provided with grooves 4 for attaching the ground terminal. Groove for attaching movable terminal 7. A groove 10 for attaching a fixed terminal is formed, and each terminal 5, 8, 12 is inserted and fixed into these grooves 4, 7 and groove 10, respectively.
．． 12 is very simple to install and overall its assembly is very easy.

According to the above embodiment, each of the terminals 5, 8, and 12 can be inserted and fixed by sliding them from the opening side of the jack body 1 to the bottom side, and each of the terminals 5, 8, and 12 inserted and fixed can be inserted and fixed.
8.12 both have a cover body 16 in the opening of the jack body 1.
By installing the terminals, the terminals 5, 8, and 12 will no longer come off, and therefore, the terminals 5, 8, and 12 will not fall off during use, and excellent performance can be maintained at all times.

In particular, according to the above embodiment, the protrusion 1 is provided at the base end of the fixed terminal 12.
3, and this protrusion 13 is connected to a groove 10 for inserting a fixed terminal.
Since the fixed terminal 12 is configured to be elastically engaged with the groove 11 formed in the groove, the installation of the fixed terminal 12 is extremely stable, and even if the fixed terminal 12 is made smaller and the entire jack is made smaller, the fixed terminal 12 remains fixed. Insertion of the terminal 12 is extremely easy, which is extremely advantageous in practical terms.

In addition, when forming the protrusion 13 on the fixed terminal 12, the protrusion 13 may be formed by cutting and bending as shown in FIG.

In this case, when the fixed terminal 12 is inserted into the groove 10,
The function of the protrusion 13 allows the fixed terminal 12 to be more firmly fixed.

As is clear from the above embodiments, the overall structure of the jack of the present invention is extremely simple and can be miniaturized, which is extremely advantageous in practice.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view of an embodiment of the jack of the present invention;
FIG. 2 is an exploded perspective view of the same embodiment, and FIG. 3 is a perspective view of another fixed terminal that can be used in the same embodiment. 1... Jack body, 2... Cylindrical part,
3... Column, 4... Groove, 5...
...Earth terminal, 6...Protrusion, 7...
・Groove portion, 8...Movable terminal, 9...Convex portion, 10...Strip groove, 11...Concave groove, 12
...Fixed terminal, 13...Protrusion, 14.
15...pin, 16...through hole, 17.
18...Through hole, 19...Spring.

Claims (1)

[Scope of utility model registration request] A groove for inserting a ground terminal, a groove for inserting a movable terminal, and a groove for inserting a fixed terminal are formed in the wave-shaped jack body in a direction from the opening of the jack body to the bottom surface. In a jack configured such that the base end portions of the ground terminal, movable terminal, and fixed terminal are inserted and fixed into the grooves and grooves, respectively, and the cover is attached to the opening of the jack body, the groove for inserting the fixed terminal is A jack in which a concave groove is formed in the center part continuously with the groove, and a protrusion formed at the base end of the fixed terminal is elastically engaged with the concave groove.