JPH0561968U - Cable connector connection piece - Google Patents

Abstract

(57) [Summary] [Purpose] A connector retaining mechanism is provided directly on the connecting piece to reduce the size and simplification of the connector body. [Structure] The connection piece 4 to be inserted into the connector female body is a rectangular tube in which an elastic plate material is bent, and a spring portion 441 curved inside the rectangular tube is provided on the insertion opening side of the insertion piece 11 of the connector male body 1. A sandwiching piece 44 provided with a sloped portion 442 and a through hole 443 formed in a vertical portion following this is integrally formed by an elastic plate material that is an extension of the elastic plate material, and a tip portion of the sandwiching piece 44 is connected to the connection. It is configured so as to project to the outside of the window 45 provided in the piece 4, and when the insertion piece 11 is inserted, it penetrates through the through hole 443 of the holding piece 44 and is connected by the elastic force of the spring portion 441. It is configured to be pressed against the inner surface of the piece 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cable connector, and more particularly to a connecting piece having a retaining mechanism.

[0002]

[Prior Art]

 Examples of conventional connectors include those shown in FIGS. 6, 7, and 8. All of these connector retaining mechanisms are provided on the male connector bodies 5a, 6a, 7a and the connector female bodies 5b, 6b, 7b.

As shown in FIG. 6, the arm 51b, 51b provided elastically on both sides of the longitudinal direction of the connector female body 5b has hooking claws 52b, 52b protruding outward at the tips of the arms 51b, 51b, respectively. The notches 51a and 51a into which the arms 51b and 51b are inserted are formed on the side surface of the connector male body 5a corresponding to the longitudinal side surface of the connector female body 5b. The notches 51a and 51a are provided at the entrances of the notches 51a. The claw 52b and the latching claw 52a for latching are projected, and once the connector female body 5b is inserted into the connector male body 5a, the latching claws 52a, 52b latch with each other so that they cannot be easily removed. Is configured. Incidentally, 53a is an insertion piece of the connector male body 5a.

In the structure shown in FIG. 7, a latch plate 61b is provided in the longitudinal direction of the connector female body 6b, and a latch claw 62b is provided inside the tip of the latch plate 62b in the shape of a jetty. As described above, the locking claws 62a are provided on the side surface of the connector male body 6a in the shape of a jetty, and the locking claws 62a are locked to each other so that they cannot easily come off. Incidentally, 63a is an insertion piece of the connector male body 6a.

FIG. 8 shows a structure in which one end of each arm 71b, 71b provided with elasticity on the opposing lateral sides of the female connector body 7b faces the longitudinal side surface. The hook 71b in the opposite direction, and cuts 71a, 71a into which the arms 71b, 71b are inserted are formed on the opposite lateral sides of the male connector body 7a, and the hook 71b is provided at the entrance of the cut 71a. The retaining claw 72a that engages with the retaining claw 72b projects, and once the connector female body 7b is inserted into the male connector body 7a, the retaining claws 72a, 72b engage with each other and cannot be easily removed. Is configured. Incidentally, 73a is an insertion piece of the connector male body 7a.

[0006]

[Problems to be solved by the device]

 However, in each of the above-mentioned examples, the latching mechanism projects to the outside of the connector body, and the outer shape becomes larger accordingly.

Further, there is a problem that it is difficult to release the latch when the connector is opened.

It is an object of the present invention to solve the above problems and provide a connector that can be downsized and that can be released easily.

[0009]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, in the cable connector in which the connection piece 4 of the inserted end is connected to the tip of each electric wire and the connection piece 4 is housed in the connector female body 2 at regular intervals, Is composed of a contact part 41 on the insertion side and a holding part 42 on the wire connection side, and the contact part 41 is a rectangular tube formed by bending an elastic plate material, and one side surface thereof has a rectangular shape along the center line direction. A bullet piece 43 having a shape and punched so that the sandwiching portion 42 side opposite to the insertion opening stands obliquely to the center line side, and an extension surface of the one side surface is bent inside at the insertion opening end. And a clamping piece 44 perpendicular to the one side surface through the spring portion 441 and the inclined surface portion 442 from the one side surface, and the tip of the clamping piece 44 is loosely fitted to the other side surface facing the one side surface. Window 45 and the diagonal outside on the side opposite the insertion port. A fixed bullet 46 that is bent in a vertical direction, and the holding part 42 has wire insulating part fixing pieces 421 and 421 provided on both side surfaces facing each other at a right angle to the one side surface and the other side surface and the electric wire. The elastic piece 43 is provided with conductive part fixing pieces 422 and 422. The tip of the bullet piece 43 has a bent part 431 bent to the one side surface side, and the bent part on the insertion port side has an elastic reinforcing concave part 432. The spring portion 441 in which the holding piece 44 is bent inward is formed in a narrow arc shape, and the insertion hole 443 into which the insertion piece 11 of the connector male body 1 is loosely inserted is formed in the vertical portion of the tip. It was set up.

[0010]

【Example】

 FIG. 1 is an enlarged perspective view of a connecting piece 4 of the connector of the present invention, and FIG. 2 is a perspective view of a connector male body 1 and a connector female body 2 of this connector.

As shown in FIGS. 1 and 2, this female connector has a connecting piece 4 connected to the tip of an electric wire 3 and inserted into a female connector body 2 having guides provided at regular intervals.

The connector female body 2 is provided with the localization holes 21, the loose fitting windows 22 of the holding pieces 44, and the insertion holes 23 into which the insertion pieces 11 of the connector male body 1 are inserted at the above-mentioned constant intervals.

The connection piece 4 is composed of a contact part 41 on the insertion side and a sandwiching part 42 on the wire connection side, and the contact part 41 is a square tube formed by bending an elastic plate material, and one side surface thereof has a center. A bullet piece 43 is formed in a rectangular shape along the line direction and on the side of the sandwiching portion 42 opposite to the insertion opening, the bullet piece 43 being punched so as to stand obliquely on the center line side (inner side).

In this bullet piece 43, a concave portion 432 for elastic reinforcement is formed at a bent portion on the insertion opening side of the contact portion 41, and a bent portion 431 bent downward is formed at a tip end portion. ..

Further, a holding piece 44 perpendicular to the one side surface is formed at the insertion opening end of the contact portion 41 via a spring portion 441 and an inclined surface portion 442 which are formed by curving the extended surface of the one side surface inward. ing.

The spring portion 441 is formed in a narrow arc shape, and the holding piece 44 at the tip has a through hole 443 into which the insertion piece 11 of the connector male body 1 is loosely fitted.

A window 45, through which the tip portion of the sandwiching piece 44 is loosely fitted and penetrates to the outside of the contact portion 41, is formed on the other side surface of the connecting piece 4 opposite to the one side surface, and a window 45 is formed on the side opposite to the insertion opening. A fixed bullet piece 46 bent outward is formed.

The sandwiching portion 42 is provided with wire insulating portion fixing pieces 421 and 421 and wire conductive portion fixing pieces 422 and 422, which are provided on both side surfaces facing each other at a right angle to the one side surface and the other side surface. ing.

Next, the operation of the above-mentioned connecting piece 4 will be described. 3 is a vertical sectional view in a free state, FIG. 4 is a vertical sectional view at the time when the insertion piece 11 of the connector male body 1 starts to be inserted, and FIG. 5 is a vertical sectional view at the time of completion of insertion.

When the insertion piece 11 starts to be inserted from the state of FIG. 3, first, the inclined surface portion 442 of the holding piece 44 is pushed by the tip of the insertion piece 11 (state of FIG. 4), and the spring portion 441 elastically deforms. The holding piece 44 is inclined and the insertion piece 11 penetrates the through hole 443.

When the insertion piece 11 is further pushed, the tip of the insertion piece 11 pushes down the bullet piece 43, and the tip reaches the tip of the bent portion of the bent portion 431 (state of FIG. 5).

This state is a normal insertion state, in which the insertion piece 11 is pressed against the inner surface of the contact portion 41 by the bent portion of the tip end of the bullet piece 43 to be electrically connected, and the elasticity of the spring portion 441 is increased. Is pressed against the inner surface of the contact portion 41 by the lower side of the through hole 443.

From this normal insertion state, when a force in the pulling-out direction is applied to the insertion piece 11 by some external force to retreat, the lower side of the through hole 443 is a force that bites into the insertion piece 11 by the elastic force of the spring portion 441. Occurs and a force for preventing the insertion piece 11 from retracting is generated.

When pulling out the insertion piece 11, if the tip end of the holding piece 44 is slightly tilted to the holding portion 42 side, the contact between the lower side of the through hole 443 and the insertion piece 11 is released, and the insertion piece 11 can be pulled out easily. It will be possible.

When a large number of connecting pieces 4 are arranged in parallel as in the case of FIG. 2, a releasing member (not shown) may be provided and the holding pieces 44 may be tilted all at once. ..

[0026]

[Effect of the device]

 As described above, since the retaining structure is formed on the connecting piece 4 itself, it is not necessary to provide the retaining structure for the male and female connector bodies, and the structure of the connector body is simplified. Therefore, it is possible to reduce the outer shape.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a connecting piece 4 of a connector of the present invention.

[Fig. 2] Connector male body 1 and connector female body 2
FIG.

FIG. 3 is a vertical sectional view of a connection piece in a free state.

FIG. 4 is a vertical cross-sectional view of the connection piece when the insertion piece 11 of the male connector body 1 starts to be inserted.

FIG. 5 is a vertical cross-sectional view at the time of completion of insertion.

FIG. 6 is a perspective view of an example of a conventional connector.

FIG. 7 is a perspective view of another example of a conventional connector.

FIG. 8 is a perspective view of still another example of the conventional connector.

[Explanation of symbols]

 1 Connector Male Main Body 11 Insertion Piece 2 Connector Female Main Body 3 Electric Wire 4 Connection Piece 41 Contact Part 42 Clamping Part 421 Electric Wire Insulation Part Fixing Piece 422 Electric Wire Conducting Part Fixing Piece 43 Bullet Piece 431 Bent Part 432 Concave Part 441 Clamping Part 441 Spring Part 442 Slope 443 Through hole 45 Window 46 Fixed bullet

Claims (1)

[Scope of utility model registration request] 1. A cable connector in which a connecting piece of an inserted end is connected to the tip of each electric wire and the connecting piece is housed in a connector female body at regular intervals, wherein the connecting piece is connected to a contact portion on the insertion side and an electric wire. The contact portion is a square tube formed by bending an elastic plate material, and one side surface of the contact portion has a rectangular shape along the center line direction and is opposite to the insertion opening. And a projecting piece that is punched so that its side rises obliquely to the center line side, an extension surface of the one side surface is bent inward at the insertion port end, and the one side surface passes through a spring portion and a slope surface portion. A window provided with a holding piece perpendicular to the side surface, a window into which the tip of the holding piece is loosely fitted on the other side surface facing the one side surface, and a fixed bullet bent obliquely outward to the side opposite to the insertion port. And one side surface and the other side of the holding portion. A wire insulating part fixing piece and a wire conducting part fixing piece provided on both side surfaces facing each other at a right angle to the surface,
The tip portion of the bullet piece is a bent portion bent to the one side surface side,
The bent portion on the insertion port side is formed with a concave surface portion for elastic reinforcement, the spring portion formed by bending the holding piece inward is formed in a narrow arc shape, and the connector male body is formed on the vertical portion of the tip. A connecting piece for a cable connector, which is provided with an insertion hole for loosely fitting the inserting piece.