JPH0935810A - Round connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fix a cable using a small number of component parts by furnishing a window hole in the barrel of a round connector concerned, engaging a spring with this window hole, and holding the cable with a clamp part. SOLUTION: When a cable 9 is to be fixed to the barrel 2 of a round connector concerned, first a cable 9 in which electric wires 90 are connected with pin contacts 5 implanted in an insulator 4 is fixed by caulking the clamp part 32 of a cable clamp 3. Then the fit part 30 of the clamp 3 is inserted into the barrel 2 together with the insulator 4, and a spring 33 provided on the clamp 3 is engaged with a window hole 22 provided in the barrel 2. The window hole 22 constitutes the first engaging part while the spring 33 constitutes the second engaging part. It is preferred that the barrel-clamp coupling part and the end of the cable 9a are covered with bushing 8.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a connector,
More specifically, it belongs to a circular connector used for connecting cables.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view of an example of a conventional circular connector. As is apparent from FIG. 3, the conventional circular connector 1 generally includes a barrel 2 (also referred to as a “shell”), a coupling nut 6 loosely fitted to one end of the barrel 2, and a barrel. 2 and the ground nut 10 screwed to the other end. In the conventional round connector, the mounting piece 10 formed on the ground nut 10 is used.
0, a pair of clamp saddles 11 is fixed by screws 12, and the cable 9 is clamped by the fixed pair of clamp saddles 11.
It is fixed to 0, and the ground nut 10 is screwed to the end bell 7. Further, conventionally, in the case of a waterproof structure, the bushing 8 is fixed to the ground nut 10 together with the cable 9 by the clamp saddle 11.

[0003]

As described above, in the conventional circular connector, the cable is grounded by fixing the clamp saddle to the mounting piece of the ground nut with a screw and screwing the ground nut to the end bell. Since it is configured to be fixed to the end bell via the cable, the work of fixing the cable is complicated, and it is necessary to use a clamp saddle, a screw, etc. to fix the cable.
There was also a problem that the number of parts was large and the manufacturing cost was high.

Therefore, an object of the present invention is to provide a round connector which can easily fix a cable and has a small number of parts.

[0005]

According to the invention of claim 1, in a round connector having a barrel, the barrel is provided with a first engaging portion and engages with the first engaging portion. There is provided a circular connector including a cable clamp having a second engaging portion and a clamp portion that holds a cable.

According to the second aspect of the present invention, the first engaging portion is a window hole, and the second engaging portion is fitted in the window hole to attach the cable clamp to the barrel. A round connector is obtained which is a spring piece to be locked.

According to a third aspect of the present invention, there is provided a bushing which covers at least a connecting portion between the barrel and the cable clamp and an end portion of the cable. A round connector is obtained.

[0008]

1 shows a circular connector according to an embodiment of the present invention, (a) is a longitudinal sectional view, (b) is a front view, and FIG. 2 is a main part of the circular connector shown in FIG. FIG. Referring to FIG. 1 and FIG. 2, this circular connector 1
Is a barrel 2, a cable clamp 3, an insulator 4, a pin contact 5, and a coupling nut 6.
And an end bell 7 and a bushing 8.

The barrel 2 has a substantially tubular shape, and a flange portion 20 is formed at an intermediate portion in the fitting direction.
A male screw 21 is formed near 0. A window hole 22 that is a first engaging portion is formed at the rear end portion of the barrel 2 in the fitting direction.

The cable clamp 3 has a fitting portion 30, a connecting piece 31, and a clamp portion 32. Fitting part 3
Reference numeral 0 indicates a substantially tubular shape, and a spring piece 33 that is a second engaging portion is provided. The fitting portion 30 is fitted into the barrel 2, and the spring piece 33 is engaged with the window hole 22 so that the fitting portion 30 is locked to the barrel 2. The connecting piece 31 connects the fitting portion 30 and the clamp portion 32. The clamp part 32 holds the cable 9.

The insulator 4 is arranged in the barrel 2, and by locking the fitting portion 30 of the cable clamp 3 in the barrel 2, the insulator 4 is sandwiched between the barrel 2 and the cable clamp 3 and fixed in the barrel 2.

The pin contact 5 is embedded in the insulator 4, and its terminal portion 50 is connected to the conductor wire 91 of the electric wire 90 of the cable 9 held by the cable clamp 3.

The coupling nut 6 is loosely fitted in the barrel 2 and has a flange portion 60 and the flange portion 2 of the barrel 2.
By engaging with 0, it does not fall off from the barrel 2.

The end bell 7 has a substantially cylindrical shape, and a female screw 70 is formed on the inner side of the tip end thereof. By screwing the female screw 70 onto the male screw 21 of the barrel 2, the end bell 7 is attached to the barrel 2. Fixed. In this state, the end bell 7 covers the insulator 4 and the cable clamp 3.

When the bushing 8 is in a state in which the fitting portion 30 of the cable clamp 3 is locked in the barrel 2, the bushing 8 moves from the connecting portion of the barrel 2 and the cable clamp 3 to the cable clamp 3
The end portion of the cable 9 held by the clamp portion 32 is covered to waterproof this portion.

With the above construction, in order to fix the cable 9 to the barrel 2, first, the cable 8 in which the electric wire 90 is previously connected to the pin contact 5 planted in the insulator 4 is replaced with the cable 8. The clamp part 32 of the clamp 3 is fixed here by caulking, and then the fitting part 30 of the cable clamp 3 is inserted into the barrel 2 together with the insulator 4, and the spring piece 33 of the cable clamp 3 is inserted into the window of the barrel 2. All that is required is to engage the hole 22.

[0017]

According to the circular connector of the present invention, the work of fixing the cable can be performed more easily than before.

Further, since the round connector of the present invention has a small number of parts, the manufacturing cost can be reduced.

The circular connector of the present invention can be easily waterproofed.

Further, according to the circular connector of the present invention, the structure is simple and the number of parts is small, so that the connector can be made smaller than the conventional one.

[Brief description of drawings]

1A and 1B show a circular connector according to an embodiment of the present invention, FIG. 1A is a vertical sectional view and FIG. 1B is a front view.

FIG. 2 is an exploded perspective view of a main part of the circular connector shown in FIG.

FIG. 3 is a perspective view of a main part of an example of a conventional circular connector.

[Explanation of symbols]

 1 round connector 2 barrel 3 cable clamp 4 insulator 5 pin contact 6 coupling nut 7 endbell 8 bushing 9 cable 22 window hole (first engaging part) 32 clamp part 33 spring piece

Claims (3)

[Claims] 1. A circular connector having a barrel,
The barrel is provided with a first engaging portion, and a cable clamp having a second engaging portion that engages with the first engaging portion and a clamp portion that holds a cable is provided. Circular connector. 2. The first engaging portion is a window hole, and the second engaging portion is a spring piece that fits into the window hole and locks the cable clamp to the barrel. Circular connector characterized by. 3. A bushing which covers at least a connecting portion between the barrel and the cable clamp and an end portion of the cable is provided.
Circular connector described.