JPS5926536Y2 - jack - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a jack that serves both as a fixed terminal and a ground terminal.

In conventional jacks, the sleeve into which the plug is inserted and removed is made up of a metal tube, and a ground terminal is attached to the metal tube.Inside the body, there is a movable contact piece and a fixed piece that are connected and separated when the plug is inserted and removed. A movable terminal and a fixed terminal were each integrally led out of the body from the contact piece.

In this conventional jack, the ground terminal and the fixed terminal are connected by a lead wire when used, or are connected by the wiring when mounted on a wiring board.

This invention provides a jack that has fewer parts by integrating the ground terminal and the fixed terminal, and does not require connection between the ground terminal and the fixed terminal during use.

Hereinafter, embodiments of the jack according to this invention will be described with reference to the drawings.

In the figure, the body 11 made of insulating material has a rectangular parallelepiped shape, and in this example, the back side and bottom side are open.

A back cover 12 is provided to cover the back side and the bottom side.

The sleeve 13 on the front side protrudes forward in the center of the pad.
is formed integrally with the body 11.

A fixed contact piece 14 and a movable contact piece portion 15 are housed within the body 11 .

As shown in FIG. 3, the fixed contact piece 14 includes a fixed contact piece 16 that comes into contact with and separates from the movable contact piece 15, a ground contact piece 17 that extends to the inner peripheral surface of the sleeve 13, and a ground contact piece 17 that projects to the outside of the body. A fixed terminal 18 and a fixed terminal 18 are integrally constructed.

More specifically, the fixed contact piece 16 has a pair of opposing fixed contact pieces 16a and 16b that are parallel and have the same shape.
The contact edge 19 extends back and forth along the inner surfaces of the left and right side plates 11a and 11b, and the movable contact piece side is located at the center of the body 11 in the vertical direction and extends back and forth. .

The front ends of these fixed contact pieces 16a and 16b are connected to each other by a connecting piece 21, and a fixed terminal 18 is integrally extended from the lower side of the central part of this connecting piece 21 to the bottom side of the body 11. It is more protruded to the outside.

A portion of the upper side of the connecting piece 21 side of the fixed contact pieces 16a, 16b is cut off to narrow the width.

Both sides of the upper edge of the connecting piece 21 are integrally extended upward along the inner surface of the front plate of the body 11, and then extended in the front-rear direction along the inner peripheral surface of the sleeve 13 to form a pair of ground contact pieces. portions 17a and 17b.

Contact piece insertion grooves 22a and 22b are formed in the front and back direction on the inner circumferential surface of the sleeve, and ground contact pieces 17a and 17b are formed in these grooves 22a and 22b.
is inserted.

The contact pieces 17a and 17b are spaced so that their front parts are slightly close to each other so as to make sufficient contact with the outer periphery of the plug to be inserted, and the inner surfaces are difficult to catch on the plug to be inserted. It has a sloping edge.

The movable contact piece 15 straddles between the fixed contact pieces 16a and 16b, and has both ends in contact with the upper contact edge 19. From this point, it is extended forward and upward in the figure, and from the extended end, it extends above the body 11. It is folded back along the inner surface of the face plate, further bent and extended along the inner surface of the back side of the back cover 12, and protruded from the body 11 to form the movable terminal 23.

Left and right side plates 11a of the body 11, top plate 11 of llb
Guide grooves 24a and 24b extending in the front-rear direction in contact with C
are formed in the grooves 24a and 24b, and a movable contact piece 15 is formed in the grooves 24a and 24b.
Both side edges of the portion of the body 11 that is in contact with the top plate 11C are inserted and guided.

In order to ensure the contact between the movable contact piece 15 and the fixed contact pieces 16a and 16b, the width of the contact portion of the movable contact piece 15 is set to be larger than the distance between the fixed contact pieces 16a and 16b. is enlarged, and along with this, the side plates 11a,
There is a shallow recess 2 near the contact part of the movable contact piece 11b.
5a and 25b are formed, respectively.

The back cover 12 is integrally constructed with a back surface portion 26 that closes the back surface of the body 11 and a bottom surface portion 27 that closes the bottom surface. Projections 29 formed on both sides of the portion 27 are engaged with the bottom plate portions 31 on both sides of the body 11 where a portion remains.

When the back cover 12 is attached to the body 11, each protrusion 28 is inserted into a hole 33 formed in a corresponding portion of the side plates 11a, 11b of the body 11 and engaged with each other.

According to the jack according to the invention described above, the grounding contact piece 17 that contacts the outer peripheral surface of the inserted plug and the fixed contact piece 16 that comes into contact with and separates from the movable contact piece 15 are integrally formed. They are electrically led out to the outside through a common fixed terminal 18.

Therefore, the number of parts required for the jack is small, and when using it, it is necessary to electrically connect the fixed terminal of the fixed contact piece and the ground terminal with a lead wire or with a wiring board. I don't.

Since the metal sleeve is omitted by using the earth contact piece, it can be manufactured at low cost, and the earth contact piece is guided and inserted into the contact piece insertion grooves 22a and 22b, and the front end of the earth contact piece is Since it has an inclined edge, it is difficult for the plug to get caught on the ground contact piece when it is inserted, and there is no risk that the ground contact piece will be deformed.

Since the movable contact piece 15 contacts each contact edge of the fixed contact pieces 16a and 16b, good contact can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a jack according to this invention.
FIG. 2 is a rear view of the body with the back cover removed, FIG. 3 is a perspective view showing a part of the fixed contact piece, and FIG. 4 is a perspective view of the back cover. 11: Body, 12: Back cover, 13 Nice sleeve, 14:
Fixed contact piece part, 15: Movable contact piece part, 17: Earth contact piece part,
18: Fixed terminal, 23: Movable terminal.

Claims (1)

[Scope of utility model registration request] A sleeve communicating with the inside of the body is integrally formed on one end surface of the insulating material body, and a pair of contact piece insertion grooves parallel to the axis of the sleeve are formed on the inner circumferential surface of the sleeve to face each other from the inner surface, One side edge is guided and inserted into these contact piece insertion grooves, and a pair of ground contact pieces are extended forward from inside the body and arranged in the sleeve, and are formed integrally with the rear ends of these ground contact pieces. A connecting piece is disposed facing the inner surface of the end plate on which the sleeve of the body is formed, and a pair of plate-shaped fixed contact pieces are arranged rearward from both side edges in the arrangement direction of the earth contact pieces of the connecting piece. The lower edges of these fixed contact pieces are in contact with the bottom surface of the body, and
Each upper edge of the fixed contact piece part is a contact edge, and the free end contact part of the movable contact part 15 is pressed between these contact edges, and the movable contact part 15 is diagonally above and in front of the free end contact part. The movable terminal is extended from the front and is folded back from the extended end along the upper surface inside the body, and a movable terminal integral with the movable contact piece is led out from the body and is integrally formed with the connecting piece. A fixed terminal is led out from the body, and the pair of ground contact pieces are in the same plane, and the space is narrowed so that the front parts are slightly close to each other, and the front ends are close to each other. The opposite edge of the sleeve is an inclined edge, and the plug inserted into the sleeve is elastically clamped by the grounding contact piece, and the movable contact piece is driven by the plug so that the plug is removed from the fixed contact piece. Jack is separated.