JPH09190858A - Coaxial cable connector - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To securely hold an outer conductor or an outer jacket of a coaxial cable without co-rotating the coaxial cable during a screw-fastening operation of a tightening fitting to a connector body. [Structure] Attach one end to the other end of the connector body that is attached to the equipment by screwing and assembling, and by screwing operation of this fastening metal, the clamp is reduced in diameter and the outer conductor or jacket of the coaxial cable is removed. In the coaxial cable connector that is held, a guide ring 9 is interposed between the connector body 1 and the ferrule 6 housed in the body 1. A clamp 11 whose one end is reduced in diameter by slidingly contacting an inner tapered edge 10 formed on the inner peripheral surface of the guide ring 9 is housed in the connector body 1 so that the clamp 11 can be inserted between the ferrule 6 and the guide ring 9. To do. On the other end side of the clamp 11, a pressing ring 13 is provided, one end of which is in contact with the clamp 11 and the other end of which protrudes from the connector body 1 and is pressed by the tightening fitting 20. The protrusion 14 provided on the side is engaged with a guide notch 16 formed at the other end of the connector body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial cable connector.

[0002]

2. Description of the Related Art A male screw portion on one end side is screwed to be attached to a device, and a fastening metal fitting is screwed on the other end side of a connector body, and the clamp is reduced in diameter by the screwing operation of the fastening metal fitting. The structure for holding the outer conductor of the coaxial cable is disclosed, for example, in Japanese Utility Model Laid-Open No. 61-161887, and in this conventional example, when the tightening fitting is screwed and tightened to the connector body. The clamp ring moves the pressing ring, and the inner tapered edge provided on the inner peripheral surface of the pressing ring slides on the outer tapered edge provided on the outer peripheral surface of the clamp to reduce the diameter of the clamp and hold the outer conductor. It is supposed to do.

[0003]

In the above-described conventional example, as the diameter of the clamp is reduced with the movement of the pressing ring, frictional resistance against the turning operation of the tightening fitting is generated, and finally,
The pressing ring and clamp may rotate in sequence with the rotation of the tightening fitting, and the coaxial cable may rotate together, and the coaxial cable may be twisted, failing to function as a cable, or its electrical characteristics may be impaired. .

The present invention focuses on the drawbacks of such a conventional example,
It is an object of the present invention to provide a device for surely holding an outer conductor or a jacket of a coaxial cable without causing co-rotation of the coaxial cable when a tightening operation of a fastening metal fitting to a connector body is performed.

[0005]

[Means for Solving the Problems] Assembling by tightening a tightening metal fitting on the other end side of a connector body whose one end side is attached to a device, the clamp is reduced in diameter by the screwing operation of the tightening metal fitting, and In a coaxial cable connector designed to hold an outer conductor or a jacket, a guide ring is interposed between a connector body and a ferrule housed in the body, and an inner tapered edge formed on the inner peripheral surface of the guide ring A clamp whose one end is reduced in diameter by sliding contact is housed in the connector body so that it can be inserted between the ferrule and the guide ring, and the other end of the clamp has one end contacting the clamp and the other end. Is provided with a pressing ring that projects from the connector body and is directly or indirectly pressed by a tightening fitting, and a notch or guide that engages the protrusion with the protrusion. It said pressure ring either one of configuration in which each one of the other other end of the connector body, or a basic unit a structure omitting the pressing ring in this configuration.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the coaxial cable connector according to the present invention. FIG. 1 is a sectional view showing a state of use, and FIG. 2 is a sectional view taken along line XX of FIG.

In the figure, reference numeral 1 denotes a connector body to which a first male screw portion 2 formed at one end side is screwed and attached to a device, and a center contact 3 is arranged on the axis of the connector body 1 so that a center of a coaxial cable C is provided. The pin 3a of the center contact 3 is adapted to be connected to the conductor Ca and is projected from the main body 1 through the first insulator 4 fitted inside the first male screw portion 2 to be inserted into the device.

The central contact 3 is supported by a ferrule 6 at a base 3b (a connecting portion with the central conductor Ca) via a second insulator 5, and the ferrule 6 is an intermediate portion in the longitudinal direction of the inner cavity of the main body 1. The stepped portion 7 provided in the main body 1 is engaged with and supported by the ferrule retainer 8 assembled to the main body 1.

Further, the ferrule 6 is inserted between the base 6a to be engaged with the ferrule retainer 8, the inner insulator Cb of the cable C and the outer conductor Cc, and the coaxial cable C is inserted.
The guide ring 9 is made to engage with the base portion 6a of the ferrule 6 and the base portion of the guide ring 9 is engaged with a space region formed by the main body 1. An inner taper edge 10 is formed on the inner peripheral surface of the tip end 9 of the guide ring 9 that gradually expands from the middle portion of the guide ring 9 in the tip end direction. One end of a clamp 11 is slidably contacted with the inner taper edge 10 to reduce the diameter. An outer taper edge 12 corresponding to the inner taper edge 10 is provided on the outer peripheral surface, and the outer taper edge 12 is brought into sliding contact with the inner taper edge 10 so that one end of the clamp 11 has the guide ring 9 and the cable jacket Cd.
It is designed to slip in between and to reduce the diameter.

On the other end side of the clamp 11, there is provided a pressing ring 13 having one end in contact with the clamp 11 and the other end protruding from the connector body 1.

The pressing ring 13 is provided with a pair of protrusions 14, 14 on the circumferential side of the one end side, and the protrusions 14, 14 are passed through the notch 15 formed at the other end of the clamp 11 to the rear side of the main body 1. In order to prevent the protrusion 14, that is, the pressing ring 13, from coming off from the connector body 1 by the first C ring 17 engaged with the guide notch 16 provided at the end and locked inside the other end side of the connector body 1. Has become.

A second male screw 18 is formed in an intermediate portion adjacent to the guide notch 16 with which the protrusion 14 of the connector body 1 is engaged, and a female screw 19 is screwed onto the second male screw 18 to be assembled to the connector body 1. A second C ring 21 is provided on the tightening fitting 20 so as not to come off.
A collar 22 is put in contact with and presses it.

Reference numeral 23 is a gasket, and 24 is an O-ring.

The first insulator 4, the second insulator 5 and the clamp 11 are made of synthetic resin, the gasket 23 and the O-ring 24 are made of rubber, and the rest are made of metal.

Therefore, the ferrule 6 and the center contact 3 are attached to the end of the coaxial cable C where the coaxial cable C is passed through the tightening fitting 20 in which the collar 22 is housed and the end is treated by an appropriate means (center conductor Ca Against base C
Attach the center contact 3 so as to crimp a, and
The ferrule 6 is attached by inserting the inserting tube portion 6b between the outer conductor Cc and the inner insulator Cd, and the ferrule 6 and the center contact 3 are fixed to each other by the presence of the second insulator 5), the ferrule retainer 8, guide ring 9, clamp 1
1. The connector body 1 assembled in advance by sequentially engaging the pressing ring 13 and finally locking the first C ring 17 and screwed and fastened to the device at the first male screw portion 2.
When the pin 3a is inserted from the side of the center contact 3 into the device side through the first insulator 4 and the tightening metal fitting 20 is screwed into the second male screw 18 at the female screw 19, the collar 22 fixes the pressing ring 13. Pressing, the pressing ring 13 presses the clamp 11, and the clamp 11 has an outer taper edge 12 on the inner taper edge 1 of the guide ring 9.
Guide ring 9 and cable jacket C
It is inserted between the cable d and d to hold the cable jacket Cd and obtain the state at the time of use.

The first C ring 17 holds the ferrule retainer 8, the guide ring 9, the clamp 11 and the press ring 13 in the state of being assembled to the connector body 1, and the second C ring 21 holds the collar 22.
Alternatively, since the gasket 23 is held in the state of being assembled to the tightening fitting 20, loss of parts can be reduced, and moreover, the center contact 3 assembled to the cable can be inserted into the connector main body 1 and the tightening fitting 20 can be screwed. It is extremely easy to handle, as it can be operated.

In the embodiment, the pressing ring 13 is used, but there is also a means of omitting the pressing ring 13 and using a clamp such that the clamp 11 and the pressing ring 13 of the embodiment are integrated (composite materials). The outer conductor may be directly held (without the outer cover) by a clamp, depending on whether it is made of resin or metal.

Further, instead of the notch shape of the guide notch 16, a groove-shaped guide groove may be used, or a guide notch (or a guide groove) may be provided on the side of the clamp or the pressing ring, and a protrusion may be provided on the connector body side. It may be provided.

Incidentally, the engagement relationship between the guide notch or the guide groove and the protrusion means that the pressing ring (or clamp) moves along the connector body and does not rotate due to the engagement relationship.

[0020]

The present invention has the configuration described above,
When rotating the tightening bracket to fix it to the coaxial cable, the rotation of the tightening bracket is not transmitted to the coaxial cable, and therefore, the coaxial cable does not rotate with the tightening bracket. It is possible to prevent various troubles of the cable.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state during use.

FIG. 2 is a sectional view taken along line XX of FIG.

[Explanation of symbols]

 1 Connector Main Body 6 Ferrule 9 Guide Ring 10 Inner Tapered Edge 11 Clamp 13 Pressing Ring 14 Projector 20 Tightening Metal Fitting

Claims (5)

[Claims] 1. A clamp fitting is screwed and assembled to the other end of a connector body whose one end is attached to a device, and the clamp is reduced in diameter by the screwing operation of the tightening fitting, and the outer conductor or the outside of the coaxial cable. In a coaxial cable connector designed to retain a cover, a guide ring is interposed between a connector body and a ferrule housed in the body, and one end is slidably contacted with an inner tapered edge formed on the inner peripheral surface of the guide ring. A clamp whose side is reduced in diameter is housed in the connector body so that it can be inserted between the ferrule and the guide ring, and one end of the clamp is in contact with the clamp and the other end is the connector body. One of the guide notch or the guide groove that engages the protrusion is provided by disposing a pressing ring that protrudes further and is directly or indirectly pressed by the tightening fitting. One for the coaxial cable, the other for the pressing ring and the other for the other end of the connector body. 2. The connector for a coaxial cable according to claim 1, wherein the protrusion is provided on the circumferential side of the pressing ring, and the guide notch or the guide groove is provided at the other end of the connector body. 3. A notch is provided at the other end of the clamp,
A coaxial cable connector in which a protrusion provided on a pressing ring is engaged with a guide notch or a guide groove through the notch. 4. A clamp fitting is screwed and assembled to the other end of the connector body whose one end is attached to a device, and the clamp is reduced in diameter by the screwing operation of the tightening fitting, and the outer conductor or the outer portion of the coaxial cable. In a coaxial cable connector designed to retain a cover, a guide ring is interposed between a connector body and a ferrule housed in the body, and one end is slidably contacted with an inner tapered edge formed on the inner peripheral surface of the guide ring. A clamp whose side is reduced in diameter and the other end of which is directly or indirectly pressed by a clamp is disposed inside the connector body so that it can be inserted between the ferrule and the guide ring. A connector for a coaxial cable in which one of a guide notch or a guide groove that engages a protrusion is provided in the clamp, and the other one is provided at the other end of the connector body. - 5. The coaxial cable connector according to claim 4, wherein the protrusion is provided on the peripheral side of the clamp, and the guide notch or the guide groove is provided at the other end of the connector body.