JP2592903Y2 - Fitting connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting connector used for connecting a pipe type coaxial cable for a cable television (CATV) to a housing device such as an amplifier.

[0002]

2. Description of the Related Art Conventionally, there is a fitting connector of this type shown in FIG. The fitting connector 50 includes a connector body 51 attached to a housing device (for example, an amplifier) (not shown), a first nut 52 attached to the connector body 51,
The connector includes a second nut portion 53 attached to the nut portion 52, and a clamp portion 54 disposed between the connector main body portion 51 and the first nut portion 52.

[0003] The fitting connector 50 is attached as follows. That is, the center contact 62 is attached to the center conductor 61 of the coaxial cable 60 in advance by caulking or the like, and then the first nut 52 and the second nut 53 are connected to the coaxial cable 60.
Into the outer circumference of the tip. Then, the center contact 62 is connected to the housing device side by inserting the distal end of the coaxial cable 60 in this state into the connector main body portion 51 previously screwed to a connection end (not shown) of the housing device. Further, the first nut portion 52 is screwed into the connector main portion 51, and the screwing causes the clamp portion 54 located between the connector main portion 51 and the first nut portion 52 to be deformed in the centripetal direction so as to be coaxial. The outer conductor 64 of the cable 61 is tightened and fixed. Finally, the second nut 53 is connected to the first nut 5
The gasket 55 disposed between the nut portions 52 and 53 is compressed and deformed by the screwing, and the outer body 63 of the coaxial cable 60 is tightened and fixed. Thus, the attachment of the fitting connector 50 and the connection of the coaxial cable 60 to the housing device are completed.

In the figure, reference numeral 56 denotes an insulating insulator provided between the center conductor 61 or the center contact 62 and the connector body 51, and 57 denotes O-rings provided at various locations for sealing. It is.

[0005]

However, the conventional fitting connector 50 having such a structure has a limitation in a procedure for attaching the coaxial cable 60 to the coaxial cable 60, which is inconvenient in the progress of the coaxial cable laying work. was there. This is because the conventional fitting connector 50
Is the attachment of the connector body 51 to the housing device,
Attaching the first nut 52 to the connector main body 51,
By attaching the second nut portion 53 to the first nut portion 52 in this order, the second nut portion 53 is attached to the coaxial cable 60 and is connected to the housing device. That is, the assembly of the fitting connector 50 is not completed until the connection to the housing device is completed. Further, the connection and the attachment are performed in the reverse order to the above-mentioned order (the fitting connector 50 is connected to the coaxial cable 60).
Connected to the housing device after attaching to the device) is not possible. This means that, in other words, the coaxial cable-side members (specifically, the first nut portion 52 and the second nut portion 53) of the connector 50 are attached to the coaxial cable 60, and the housing device-side member (specifically, the connector 50). Specifically, it is impossible to assemble the connector by separately attaching the connector main body 51) to the housing device and then connecting them.
As described above, there are various limitations in assembling the connector 50, and these hinder the progress of the coaxial cable laying work.

[0006] In addition, the center contact 62 and the center conductor 61 of the coaxial cable 60 are connected by caulking or the like, and the connection work of the connector 50 takes a corresponding amount of time. There is also a problem that a torsion force is applied to the center contact 62 when tightening the 52.

[0007] The present invention has been made in view of such problems, and there are few restrictions on assembly.
An object of the present invention is to provide a fitting connector in which connection work is simplified and a center contact is not damaged by a torsional force.

[0008]

According to the present invention, in order to achieve the above object, a coaxial cable side connection part and a device side connection part are provided, and one connection part is connected to both connection parts. The member is rotatably attached, and in response to the connecting operation of the connecting member, the center contact member provided on the device side connecting portion and the center conductor of the coaxial cable gripped by the coaxial cable side connecting portion. A crimping member is provided which is relatively displaced in the approaching direction and presses against it, and a fitting connector is constituted from the above.

[0009]

According to the above arrangement, the coaxial cable-side connection end is attached to the coaxial cable, the housing-device-side connection end is attached to the housing device, and the connecting member attached to one of the connection ends is rotated. To connect the two. At the time of connection, the center conductor of the coaxial cable held at the device-side connection end and the center contact member provided at the device-side connection end are pressed by a crimping member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a partially cutaway side view of one embodiment of the present invention.

The fitting connector 1 connects the coaxial cable 60 to the housing device 70, and includes a coaxial cable side connection portion 2 and a device side connection portion 3.
The coaxial cable side connection part 2 is coaxial cable side shell 4,
A cap nut 5 is screwed around the outer periphery of the coaxial cable side end of the coaxial cable side shell 4.

Inside the coaxial cable side shell 4, an outer conductor split clamp 6 and a tapered ring 7 are provided. The inner peripheral portion of the coaxial cable side shell 4 and the inner peripheral portion of the tapered ring 7 have tapered surfaces 4a, 7a, respectively.
Is provided. These tapered surfaces 4a and 7a are formed so as to face each other and to be close to each other on the radially outer side. The split clamp 6 for the outer conductor has the tapered surface 4
a, 7a, and are attached so as to be inserted between the tapered surfaces 4a, 7a. Furthermore, the coaxial cable side end of the coaxial cable side shell 4 is caulked inward, and the outer conductor split clamp 6 and the tapered ring 7 are prevented from coming off by the caulked portion 4b.

On the other hand, a tapered ring 8 and a tightening gasket 9 are provided inside the cap nut 5. The inner peripheral portions of the cap nut 5 and the tapered ring 8 are provided with the same tapered surfaces 5a and 8a as inside the coaxial cable side shell 4, respectively. Both side surfaces are inserted and arranged to face the tapered surfaces 5a and 8a. The tapered ring 8 has an inward flange 8 b that receives the end of the outer sheath 63 of the coaxial cable 60. Further, a tapered ring 8 and a snap ring 10 for preventing a fastening gasket 9 from being removed are provided on the inner periphery of the cap nut 5.

A coupling (connection member) 11 is attached to a connection end of the coaxial cable side shell 4. The coupling 11 is rotatably attached to the outer periphery of the coaxial cable side shell 4 via a snap ring 12, and a female screw portion 11a is formed on the inner peripheral surface thereof. Further, an insulator 13 for the center conductor is attached inside the connection side end of the coaxial cable side shell 4, and an annular projection 4 b for receiving the end of the outer conductor 64 of the coaxial cable 60 is provided.

The device-side connection section 3 has a device-side shell 20 and a center contact 21. A connecting male screw portion 20a that is screwed to the coupling 11 is formed on the outer periphery of the connection side end of the device side shell 20, and the connection end of the housing device 70 to be connected is screwed to the device side end. Connecting male thread 20
b is formed. A clamp member (crimp member) 22 and an insulator 23 for the center contact are provided inside the device side shell 20.

The center contact insulator 23 is disposed at the connection side end, and has a stepped portion 20c formed on the inner periphery of the device side shell 20 and an inward flange portion formed at the device side end of the device side shell 3. 20d. The base end of the center contact 21 is cylindrical and forms a connection hole 21a. A single or a plurality of slits 21b are formed in the cylindrical base end along the axial direction. The slit 21b allows the cylindrical base end to be deformed in the radial direction. The center contact 21 is inserted into an insertion hole 23d formed in the center of the center contact insulator 23, whereby the center contact 21 is attached to the device-side shell 20 with its tip protruding from the device-side end. Have been.

The clamp member 22 comprises a center conductor split clamp 30 and a clamp insulator 31. The central conductor split clamp 30 is formed with a single or a plurality of slits 30a along the axial direction, so that the connection end side thereof can be deformed in the radial direction. The center conductor split clamp 30 is positioned by contacting the center contact insulator 23. Further, an outer peripheral tapered surface 30b is formed on the outer peripheral surface on the connecting end side of the center conductor split clamp 30. The outer peripheral tapered surface 30b is inclined to the outside.
The inner peripheral surface of the clamp insulator 31 is formed with an inner peripheral tapered surface 31a opposite to the outer peripheral tapered surface 30b. Then, the clamp insulator 31 contacts the inner peripheral tapered surface 31a with the outer peripheral tapered surface 30b,
It is in contact with the center conductor split clamp 30. An annular lip 31b is formed on the outer peripheral surface of the clamp insulator 31. On the other hand, an inward flange portion 20e is formed on the inner periphery of the connection-side end of the device-side shell 20. By contacting the annular lip 31b with the inward flange portion 20e, the clamp insulator 31, the center conductor split clamp 30, and the center contact insulator 23 do not fall out of the device-side shell 20.

The device side shell 20, the coupling 1
1, nut portions A for screw rotation are formed on the outer peripheral portions of the coaxial cable side shell 4 and the cap nut 5, respectively. In the figure, reference numeral 40 denotes an O-ring provided for sealing, and reference numeral 41 denotes a sealing gasket provided at the connection end side end of the coaxial cable side shell 4.

Next, the mounting of the fitting connector 1 having the above configuration will be described with reference to FIGS. First, the center conductor 61 is slightly protruded from the end of the coaxial cable 60, and the outer sheath 6
Strip 3 off. Then, the cap nut 5 and the coaxial cable side shell 4 are inserted into the distal end of the coaxial cable 60 until the annular projection 4c contacts the end of the coaxial cable outer conductor 64. Then, the cap nut 5 and the coaxial cable side shell 4 are screwed and connected. Due to the tightening force of this connection, the outer conductor split clamp 6 and the tightening gasket 9 are radially deformed by being sandwiched between the tapered surfaces 4a and 7a or between the tapered surfaces 5a and 8a, so that the outer conductor 64 and the outer coating are deformed. 63 and fix it. Thereby, the attachment of the coaxial cable side connection part 2 is completed.

On the other hand, the device side shell 20 is
The distal end of the center contact 21 is inserted and connected to a connection portion (not shown) arranged in the connection end of the amplifier (for example, an amplifier), and the connecting male screw portion 20b is screwed and fixed to the connection end. . Thus, the attachment of the device-side connection unit 3 to the housing device 70 is completed. As described above, since the coaxial cable side connection portion 2 and the device side connection portion 3 are individually attached to the coaxial cable 60 or the housing device 70, in this state, other operations can be performed while carrying or waiting. it can.

After the coaxial cable side connection part 2 and the equipment side connection part 3 are attached to the coaxial cable 60 and the housing equipment 70, respectively, the leading end of the coaxial cable 60 is brought to the connection end of the housing equipment 70, and The conductor 61 is inserted into the connection hole 21 a of the center contact 21, and the coupling 11 is attached to the mounting male screw portion 20 of the device side shell 20.
a, and by this screwing, the coaxial cable side connecting portion 2
And the housing device side connection portion 3 are connected. This connection can be performed smoothly because the coupling 11 is rotatably attached to the coaxial cable side shell 4, and the inconvenience that the coaxial cable 60 is twisted does not occur.

By this connection, the coaxial cable side shell 4
Presses the clamp insulator 31 to the left in the figure, and receives this pressure, thereby receiving the clamp insulator 3.
1 moves and rides on the center conductor split clamp 30. The center conductor split clamp 30 on which the clamp insulator 31 rides is deformed radially inward, and presses the cylindrical base end of the center contact 21 in the centripetal direction. In response to this pressure, the cylindrical base end of the center contact 21 is deformed inward and grips the center conductor 61, whereby the center contact 21 and the center conductor 61 are firmly connected. As described above, the fitting connector 1
And the connection between the coaxial cable 60 and the housing device 70 is completed.

[0023]

As described above, according to the present invention, the fitting connector is divided into the coaxial cable side connection part and the equipment side connection part, and these are connected by the connecting member. By attaching them to the coaxial cable and the connecting device, and finally connecting them with a connecting member, the fitting connector can be assembled and the coaxial cable can be connected to the connecting device. Therefore, as in the past, unless the components of the fitting connector are assembled in a predetermined order, there is no restriction on the progress of the work such that assembly and connection cannot be performed, and the installation work of the coaxial cable has become easier. .

Further, when connecting the coaxial cable side connection part and the equipment side connection part, a crimping member is used by utilizing this connection.
Since the center conductor and the center contact were pressed,
This eliminates the need for a step of connecting the center conductor and the center contact, such as the conventional caulking step, which simplifies the mounting operation, and eliminates the problem that the coaxial cable is twisted during connection.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an internal configuration of a fitting connector according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a process of assembling the fitting connector according to the embodiment.

FIG. 3 is a partially cutaway side view showing an internal configuration of the fitting connector of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fitting connector 2 Coaxial cable side connection part 3 Device side connection part 11 Coupling (connection member) 21 Center contact member 22 Clamp member (Crimping member) 60 Coaxial cable 61 Center conductor

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akio Kusui 1-7-11 Aoki, Kawaguchi-shi, Saitama Sanei Electric Industry Co., Ltd. (56) References JP-A-63-72074 (JP, A) JP-A JP-A-4-329275 (JP, A) JP-A-62-271381 (JP, A) JP-A-50-1389 (JP, A) JP-A 2-98476 (JP, U) JP-A 5-48264 (JP , U) Hikaru 1-66770 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) H01R 17/04

Claims (1)

(57) [Scope of request for utility model registration] 1. A coaxial cable side connection part (2) and a device side connection part (3) are provided, and one connection part (2, 3) has a connection member (11) of both connection parts. A center contact member (21) provided rotatably and responsive to the connecting operation of the connecting member (11) and provided in the device-side connecting portion (3).
A crimping member (22) for displacing the central conductor (61) of the coaxial cable (60) gripped by the coaxial cable side connection part (2) in the direction of relative proximity and press-contacting the same. Characteristic fitting connector.