JPS6140062Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector device, and more particularly to a connector device that stabilizes the connection state between a plug of a connector or a contact of a receptacle and a core wire of a cable connected to the connector.

A conventional connector device, for example, a connector device used in an interface bus cable device for connecting a terminal such as a line printer or a floppy disk to a computer will be explained with reference to FIG.

Fig. 1 is an external view of a bus cable assembly for connecting a computer and a terminal, in particular, Fig. 1a shows a front view, and Fig. 1b shows a portion taken along line bb in Fig. 1a. A cut plan view is shown. In the figure, a multicore cable 1 is composed of, for example, 24 core wires 11, a shield braid 12 that covers the core wires, and a sheath 13 that covers the shield braid 12.

A clamp fitting 19 is attached to the outer periphery of the sheath 13 at the end of the multicore cable 1 to prevent the multicore cable 1 from detaching from the connector 3. The connector 3 includes a contact 31 and a contact cover 33 surrounding the contact 31.
It consists of a mounting part 34 integrally molded with the contact cover 33, and two connector covers 32 of the same shape on the front and back, and a locking groove 36 for locking the clamp fitting 19 is provided on the inner surface of the connector cover 32. It is provided. The core wire 11 of the multicore cable 1 is connected to each contact 31 of the connector 3, and the shield braid 12 of the multicore cable 1 is connected to the drain wire 14.
is connected to one of the contacts 31 by.

By the way, in the conventional connector device described above, since there is a gap between the clamp fitting 19 for preventing pull-out and the locking groove 36 provided on the inner surface of the connector cover 32, the clamp fitting 19 does not fit into the locking groove. 36, which can prevent the multicore cable 1 from coming off the connector 3, but cannot prevent the clamp fitting 19 from rattling. In particular, if the multicore cable 1 is twisted, each of the cables 1 Core wire 11
The torsional force extends to the connection between the contact 31 and the contact 31, leading to accidents such as poor contact or disconnection at the connection, and in the case of a connector device for a computer cable assembly as in this example, control by the computer becomes impossible. , which may lead to accidents.

The present invention has been developed in view of the above-mentioned points, and uses the clamp fitting to absorb and alleviate the force applied to the cable due to twisting, repeated bending, vibration, etc. of the cable, thereby preventing poor contact or disconnection at the connection between the cable and the contact of the connector. The connector device of the present invention has a cable inlet at the tail end of the connector cover, and a plurality of contacts of a plug or receptacle are arranged at the front end or side. In the connector device, a cable clamp fitting consisting of a pair of metal plates having a curved part that contacts the outer periphery of the cable and a flat part extending left and right from the curved part is provided on the outer periphery of the cable introduced from the cable introduction port. Furthermore, a locking groove for locking the cable clamp metal fitting is provided on the inner surface of the connector cover, and a locking groove for supporting the flat part of the cable clamp from above and below is provided in the locking groove. This is a connector device characterized in that a buffer member is provided inside.

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

FIG. 2 shows an external view of a bus cable assembly consisting of a multicore cable and a connector configured in the same manner as in FIG. 1. In particular, FIG. 2a is a front view, and FIG. A plan view cut along the -b line is shown. Note that the same members as in FIG. 1 are given the same reference numerals. The multicore cable 1 includes 24 core wires 11, a shield braid 12 that covers the core wires, and this shield braid 1.
2, and a covering 13 covering the 2. The outer periphery of the sheathing 13 at the end of the multicore cable 1 is marked with the markings shown in FIG.
As shown in FIG. 2, clamp fittings 19 made of a pair of metal plates having a curved portion that contacts the outer periphery of the cable and a flat portion that extends left and right from the curved portion are screwed together and attached to each other. The connector 3 includes a plurality of contacts 31 of a plug or a receptacle, in this embodiment a plug, a metal contact cover 33 surrounding the contacts 31, a mounting portion 34 formed integrally with the contact cover 33, and screws. It consists of two connector covers 32 of the same shape, front and back, which are fastened together. The multicore cable 1 is introduced into the connector 3 through a cable introduction port 35 provided at the tail end of a connector cover 32, and each core wire is individually connected to a contact 31. Note that the shield braid 12 is connected to one of the contacts 31 by a drain wire 14. A locking groove 36 for locking the clamp fitting 19 attached to the outer periphery of the multi-core cable 1 is provided on the inner surface of each of the two front and back connector covers 32. The clamp fitting 19 is locked and the multicore cable 1 is connected to the connector 3.
It prevents you from leaving. According to the connector 3 in the connector device of the present invention, the locking groove 36 on the inner surface of the connector cover 32 is provided with a ring-shaped elastic body made of resin as a buffer member that fixes and supports the flat part of the clamp fitting 19 from above and below. 37
By providing this elastic body 37, the clamp fitting 19 is prevented from wobbling due to the gap between the clamp fitting 19 and the connector cover 32, and the multi-core cable 1 is prevented from being twisted. Also, the connection part 1 between each core wire 11 and the contact 31
The twisting force does not reach up to 2. In this way, the clamp fitting 19 is locked in the locking groove 36, supported and fixed by the elastic body 37 provided inside the locking groove 36, and the two connector covers 32 are fastened with bolts and nuts. Therefore, separation of the multicore cable 1 from the connector 3 can be prevented, and since the rattling of the clamp fitting 19 is absorbed and alleviated by the elastic body 37, poor contact and disconnection at the connection between the contact 31 and the core wire 11 can be prevented. etc. can be prevented from occurring.
In addition, according to the connector device of the embodiment of the present invention,
A flexible member 7 formed of a conductive cloth-like body or a metal plate that surrounds the connecting portion between each core wire of the multicore cable 1 and the plurality of contacts of the connector 3 and electrically contacts the contact cover 33. By connecting this shielding member 7 to the shield braid 12 of the multicore cable 1, leakage of radio waves from the connecting portion of the connector is prevented.

As detailed above, according to the connector device of the present invention, a buffer member is provided inside the locking groove provided on the inner surface of the connector cover that locks the cable clamp fitting that prevents the cable from detaching from the connector. Therefore, the force applied to the cable due to twisting, repeated bending, vibration, etc. of the cable can be absorbed and alleviated by the clamp fitting part, and occurrence of poor contact, disconnection, etc. at the connection part between the core wire and the contact can be prevented.

[Brief explanation of drawings]

Fig. 1 is an external view of a bus cable assembly for connecting a computer and a terminal to explain a conventional connector device, in particular, Fig. 1a is a front view, and Fig. 1b is a b in Fig. 1a. 2 is a plan view partially cut along line -b, and FIG. 2 is an external appearance of a bus cable assembly consisting of a multicore cable and a connector configured similarly to FIG. 1 for explaining a connector device according to an embodiment of the present invention. In particular, FIG. 2a shows a front view, and FIG. 2b shows a plan view taken along line bb in FIG. 2a. In the figure, 1 is a cable, 3 is a connector, 1
9 is a clamp fitting, 32 is a connector cover, 35
36 shows a cable introduction port, 36 shows a locking groove, and 37 shows a buffer member.

Claims (1)

[Scope of utility model registration request] In a connector device having a cable inlet at the tail end of a connector cover and a plurality of contacts of a plug or receptacle arranged at the front end or side, the outer periphery of the cable introduced from the cable inlet is A cable clamp fitting made of a pair of metal plates having a curved portion facing the connector and a flat portion extending left and right from the flat portion is fixed to the inner surface of the connector cover. A connector device characterized in that a locking groove is provided, and a buffer member for supporting a flat portion of the cable clamp from above and below is provided inside the locking groove.