JPH09306588A - Cable connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable connector at low cost of which the number of part items and the number of assembly processes are lessened. SOLUTION: A cable connector 1 comprises insulators 2, 3, a contact 4, an end bell 5, and a coupling nut 6. The coupling nut 6 is joined to the end bell 5 by a retaining ring 7 in a freely rotatable way and at the same time the connection of the insulators 2, 3 and the end bell 5 are retained by the coupling nut 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable connector, and more particularly to a cable connector having a reduced number of parts.

[0002]

2. Description of the Related Art FIG. 3 is a vertical sectional view of an example of a conventional cable connector. With reference to FIG. 3, a conventional cable connector 1 includes a first and a second insulators 2 and 3 that are combined in an axial direction, a contact 4 that is fixed to the first and the second insulators 2 and 3, and a bend. The pipe-shaped end bell 5, the coupling nut 6, the retaining ring 7, the barrel 11, and the gland nut 12 are included. A cable (not shown), one end of which is connected to the contact 4, is inserted into the end bell 5, and the end bell 5 inserts the cable 10 in a predetermined direction (in the case of the illustrated conventional example, the cable connector 1 is fitted). The direction is perpendicular to the direction).

The barrel 11 is mounted on the first and second insulators 2 and 3. A coupling nut 6 is rotatably attached to one end of the barrel 11. One end of the ground nut 12 is rotatably attached to the end bell 5 by a retaining ring 7, and the other end of the ground nut 12 is a barrel 11.
Is screwed to the other end of the. By screwing the barrel 11 and the ground nut 12, the end bell 5 is
Are connected to the insulators 2 and 3.

The procedure for assembling the conventional cable connector 1 constructed as described above is as follows. First, the first and second insulators 2 and 3 are fitted to each other, the contact 4 is press-fitted into the first and second insulators 2 and 3, and the barrel is inserted into the first and second insulators 2 and 3. 11 is attached, and the coupling nut 6 is attached to the barrel 11. Next, the ground nut 12 is rotatably attached to the end bell 5 in advance by the retaining ring 7. Then, the ground nut 12 is screwed into the barrel 11. By this screwing, the end bell 5 is connected to the first and second insulators 2 and 3 via the gland nut 12 and the barrel 11.

[0005]

In the case of the conventional cable connector, as described above, it is necessary to use many parts such as a barrel and a gland nut in order to fix the end bell to the insulator, and accordingly, the parts of the connector are required. There is a problem that the number of points increases and the assembly procedure becomes complicated and the number of processes increases.

Therefore, an object of the present invention is to provide a cable connector which has a small number of parts, is easy to manufacture, and is low in cost.

[0007]

According to the invention of claim 1, an insulator, a contact fixed to the insulator, and a cable connected to the insulator and connected to the contact are arranged in a predetermined direction. In a cable connector including a guiding end bell and a coupling nut rotatably arranged so as to surround the insulator, the coupling nut is rotatably connected to the end bell, and the coupling nut allows the insulator A cable connector is obtained which is characterized in that the connection with the end bell is maintained.

According to a second aspect of the present invention, the insulator has first and second flange portions, and the end bell receives at least the first flange portion and the first flange portion. A third step for maintaining the connection between the insulator and the end bell by engaging with the second flange portion and having a step surface for engaging and locking the insulator. The cable connector according to claim 1 having a flange portion is obtained.

According to the invention of claim 3, the coupling nut is rotatably connected to the end bell by a retaining ring, and the cable connector according to claim 1 or 2. can get.

According to the invention of claim 4, the cable connector according to any one of claims 1 to 3 is obtained, which is a plug type.

According to the invention of claim 5, the cable connector according to any one of claims 1 to 4 is obtained in which the end bell is of an angle type.

[0012]

1 is a vertical sectional view of a cable connector according to an embodiment of the present invention, and FIG. 2 is a vertical sectional view of the cable connector shown in FIG. 1 in an exploded state. Referring to FIGS. 1 and 2, this cable connector 1 is a plug type cable connector. Further, the cable connector 1 includes the first and second insulators 2 and 3
It has a contact 4, an end bell 5, a coupling nut 6, and a retaining ring 7.

The first insulator 2 and the second insulator 3 are adapted to fit together. Then, the first insulator 2 includes the first flange portion 20.
have. In addition, the second insulator 3 is the second
Has a flange portion 30 of.

The contact 4 is fixed inside the first and second insulators 2 and 3. This contact 4 is a socket type.

The end bell 5 is the first insulator 2
Is adapted to be received, whereby the end bell 5 is adapted to be connected to the first and second insulators 2, 3. A step surface 50 is formed on the inner peripheral wall of one end of the end bell 5. The step surface 50 is configured to come into contact with the flange portion 20 of the first insulator 2, so that the first insulator 2 is locked at a predetermined position in the end bell 5. . A ring-shaped groove 51 for accommodating the retaining ring 7 is formed on the outer peripheral wall at one end of the end bell 5. Inside the end bell 5,
One end of the cable 10 connected to the contact 4 is inserted. The end bell 5 guides the cable 10 in a predetermined direction.

The coupling nut 6 is rotatably connected to the end bell 5 by a retaining ring 7 and surrounds the first and second insulators 2 and 3. A third flange portion 60 is formed on the inner peripheral wall of the central portion of the coupling nut 6. The third flange portion 60 engages with the second flange portion 30 of the second insulator 3. As a result, the connection between the first and second insulators 2 and 3 and the end bell 5 is maintained. That is, the first and second insulators 2,
3 is a portion of the first and second flange portions 20 and 30,
It is configured to be sandwiched between the step surface 50 of the end bell 5 and the third flange portion 60 of the coupling nut 6,
As a result, the connection between the first and second insulators 2 and 3 and the end bell 5 is maintained. The inner peripheral wall of one end of the coupling nut 6 has a tapered surface 6
1 is formed, and a ring-shaped groove 62 for accommodating the retaining ring 7 is formed following the tapered surface 61.

The retaining ring 7 has its radially inner portion housed in the groove 51 of the end bell 5 and its radially outer portion housed in the groove 62 of the coupling nut 6. As a result, the retaining ring 7
The coupling nut 6 is rotatably connected to the end bell 5.

In the present embodiment, the two insulators 2 and 3 are used, but the present invention is not limited to this, and one insulator may be used, or three or more insulators may be used. Of course, it does not matter if it is configured. Further, the contact 4 is a socket type, but of course, the contact is not limited to the socket type.

Next, a procedure for assembling the cable connector 1 of this embodiment will be described. First, the first and second insulators 2 and 3 are fitted to each other, and the contacts 4 are press-fitted into these insulators 2 and 3. Next, the retaining ring 7 is attached to the groove 51 of the end bell 5 in advance. The first insulator 2 is provided in the end bell 5.
Is inserted until the first flange portion hits the step surface 50. Finally, attach the coupling nut 6 to the tapered surface 61.
Fit the end bell 5 from the side. Then, the coupling nut 6 has the tapered surface 61 and the retaining ring 7
When the groove 62 reaches the retaining ring 7 while reducing the diameter of the retaining ring 7, the retaining ring 7 returns to its normal size by its elastic force and fits into the groove 62.
As a result, the coupling nut 6 is rotatably connected to the end bell 5, and the coupling nut 6 maintains the connection between the first and second insulators 2 and 3 and the end bell 5.

[0020]

As described above, according to the present invention, it is possible to reduce the number of parts of the cable connector, and as a result, it is possible to provide a low-cost cable connector with a small number of assembly steps.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a cable connector according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the cable connector shown in FIG. 1 in an exploded state.

FIG. 3 is a vertical cross-sectional view of an example of a conventional cable connector.

[Explanation of symbols]

 1 Cable Connector 2 First Insulator 3 Second Insulator 4 Contact 5 End Bell 6 Coupling Nut 7 Retaining Ring 20 First Flange Part 30 Second Flange Part 50 Stepped Surface 60 Third Flange Part

Claims (5)

[Claims] 1. An insulator, a contact fixed to the insulator, an end bell connected to the insulator and for guiding a cable connected to the contact in a predetermined direction, and rotatably so as to surround the insulator. In the cable connector including the arranged coupling nut, the coupling nut is rotatably connected to the end bell, and the coupling nut is configured to maintain the connection between the insulator and the end bell. A cable connector characterized in that 2. The insulator has first and second flange portions, and the end bell receives at least the first flange portion and engages with the first flange portion to engage the insulator. The coupling nut has a third flange portion for maintaining the connection between the insulator and the end bell by engaging with the second flange portion. The cable connector according to claim 1, wherein: 3. The cable connector according to claim 1, wherein the coupling nut is rotatably connected to the end bell by a retaining ring. 4. The cable connector according to claim 1, wherein the cable connector is a plug type. 5. The cable connector according to claim 1, wherein the end bell is of an angle type.