JPH0577883U - Fitting connector - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fitting connector that has few restrictions on assembly and further facilitates connection work. [Structure] A coaxial cable side connecting portion 2 and a device side connecting portion 3 are provided, and a connecting member 11 for both connecting portions is rotatably attached to one of the connecting portions 2 and 3, and In response to the connecting operation by the connecting member 11, the central contact member 21 provided in the device-side connecting portion 3 and the central conductor 61 of the coaxial cable 60 gripped by the coaxial cable-side connecting portion 2 are relatively close to each other. A fitting connector provided with a crimping member 22 which is displaced and pressed against.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fitting connector used for connecting a pipe type coaxial cable for a cable television (CATV) and a casing device such as an amplifier, for example.

[0002]

[Prior Art]

 Conventionally, as this type of fitting connector, there is one shown in FIG. The fitting connector 50 includes a connector body 51 attached to a casing device (for example, an amplifier) not shown, a first nut portion 52 attached to the connector body 51, and a second nut attached to the first nut portion 52. It includes a portion 53 and a clamp portion 54 arranged between the connector main body portion 51 and the first nut portion 52.

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, and then the first nut portion 52 and the second nut portion 53 are fitted to the outer circumference of the tip of the coaxial cable 60. deep. Then, the center contact 62 is connected to the housing device side by inserting the tip of the coaxial cable 60 in this state into the connector main body portion 51 screwed in advance to the connection end (not shown) of the housing device. It Further, the first nut portion 52 is screwed into the connector body 51, and by this screwing, the clamp portion 54 located between the connector body 51 and the first nut portion 52 is deformed in the centripetal direction. , The outer conductor 64 of the coaxial cable 61 is fastened and fixed. Finally, the second nut portion 53 is screwed onto the first nut portion 52, and by this screwing, the gasket 55 disposed between the nut portions 52 and 53 is compressed and deformed, so that the coaxial cable 60. The outer casing 63 is tightened and fixed. This completes the attachment of the fitting connector 50 and the connection of the coaxial cable 60 to the housing device.

In the figure, reference numeral 56 is an insulating insulator arranged between the central conductor 61 or the central contact 62 and the connector main body 51, and 57 is an O-ring provided at various places for sealing. Is.

[0005]

[Problems to be solved by the device]

 By the way, the conventional fitting connector 50 configured as described above has a problem in that it is not convenient in the progress of the coaxial cable laying work due to the limitation in the procedure of attaching the coaxial cable 60. This is because the conventional fitting connector 50 is such that the connector body 51 is attached to the housing device, the first nut portion 52 is attached to the connector body 51, and the second nut portion 53 is attached to the first nut portion 52. By performing the mounting in this order, the coaxial cable 60 is assembled and 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. Furthermore, it is impossible to connect and attach the fitting connector 50 in the reverse order to that described above (connect the fitting connector 50 to the coaxial cable 60 and then to the housing device). In other words, this means that the coaxial cable side member of the connector 50 (specifically, the first nut portion 52 and the second nut portion 53) is attached to the coaxial cable 60, and the housing device side member of the connector 50. That is, it is impossible to assemble the connector (specifically, the connector main body 51) to the housing device separately, and then to connect them. As described above, there are various restrictions in assembling the connector 50, which hinder the progress of the coaxial cable laying work.

In addition, since the center contact 62 and the center conductor 61 of the coaxial cable 60 are connected by performing work such as caulking, there is a problem that the connection work of the connector 50 takes much time, and There is also a problem that a twisting force is applied to the center contact 62 when the nut 52 is tightened.

The present invention has been made in view of the above problems, and has less restrictions on assembly, further simplifies the connecting work, and prevents the center contact from being damaged by a twisting force. The purpose is to provide no fitting connector.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is provided with a coaxial cable side connecting portion and a device side connecting portion, and one connecting portion is rotatably attached with a connecting member for both connecting portions. In addition, in response to the connecting operation of the connecting member, the central contact member provided in the device-side connecting portion and the central conductor of the coaxial cable held in the coaxial cable-side connecting portion are relatively displaced in the proximity direction. A crimping member for press-contacting is provided, and a fitting connector is configured from the above.

[0009]

[Action]

 According to the above configuration, the coaxial cable-side connecting end is attached to the coaxial cable and the casing-device-side connecting end is attached to the casing device, respectively, and then the connecting member attached to one connecting end is rotated to operate the both ends. Can be connected. 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 together by a crimping member.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a partially cutaway side view of an 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 connecting portion 2 and a device-side connecting portion 3. The coaxial cable side connection portion 2 has a coaxial cable side shell 4 and a cap nut 5 screwed onto the outer periphery of the end portion of the coaxial cable side shell 4 on the coaxial cable side.

Inside the coaxial cable side shell 4, an outer conductor split clamp 6 and a taper ring 7 are provided. Further, the inner peripheral portion of the coaxial cable side shell 4 and the inner peripheral portion of the taper ring 7 are provided with tapered surfaces 4a and 7a, respectively. These taper surfaces 4a and 7a are formed so as to face each other and to be close to each other on the outer side in the radial direction. The outer conductor split clamp 6 is mounted so as to be inserted between the tapered surfaces 4a and 7a, and both side surfaces thereof are inclined so as to face the tapered surfaces 4a and 7a. Further, the end portion of the coaxial cable side shell 4 on the coaxial cable side is crimped inward, and the crimp portion 4b prevents the split clamp 6 for the outer conductor and the taper ring 7 from coming off.

On the other hand, inside the cap nut 5, a taper ring 8 and a tightening gasket 9 are provided. The inner peripheral portions of the cap nut 5 and the taper ring 8 are provided with the same tapered surfaces 5a and 8a as the inside of the coaxial cable-side shell 4, respectively. The tightening gasket 9 and the outer conductor split clamp 6 are also provided. Similarly, both side surfaces thereof are inserted and arranged so as to face the tapered surfaces 5a and 8a. The taper ring 8 has an inward flange 8b that receives the end of the outer sheath 63 of the coaxial cable 60. Furthermore, a taper ring 8 and a snap ring 10 for preventing the tightening gasket 9 from coming off are provided on the inner circumference of the cap nut 5.

A coupling (connecting member) 11 is attached to the end of the coaxial cable side shell 4 on the connecting side. 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, the insulator 13 for the center conductor is attached inside the end portion of the coaxial cable side shell 4 on the connecting side, and the annular projection 4b for receiving the end portion of the outer conductor 64 of the coaxial cable 60 is provided.

The device-side connection portion 3 includes a device-side shell 20 and a center contact 21. A connection male screw part 20a that is screwed with the coupling 11 is formed on the outer periphery of the connection side end of the device side shell 20, and the device side end is screwed with the connection end of the housing device 70 to be connected. A mating connection male screw portion 20b is formed. A clamp member (crimping member) 22 and a center contact insulator 23 are provided inside the device-side shell 20.

The center contact insulator 23 is arranged at the end of the connection side, and has a step portion 20c formed on the inner circumference of the device-side shell 20 and an inward flange portion formed at the device-side end of the device-side shell 3. It is positioned by 20d. The center contact 21 has a cylindrical base end and forms a connection hole 21a. A single or a plurality of slits 21b are formed along the axial direction at the tubular base end. The slit 21 b allows the tubular base end to be radially deformable. The center contact 21 is inserted into an insertion hole 23d formed in the center of the center contact insulator 23, so that the center contact 21 has its tip projected from the equipment side end portion and the equipment side shell 20. Is attached to.

The clamp member 22 includes a split clamp 30 for the central conductor and an insulator 31 for the clamp. The central conductor split clamp 30 is formed with a single slit or a plurality of slits 30a along the axial direction, whereby the connecting end side thereof can be deformed in the radial direction. Then, the split clamp 30 for the center conductor is positioned by abutting on the insulator 23 for the center contact. Further, an outer peripheral tapered surface 30b is formed on the outer peripheral surface of the split clamp 30 for the center conductor on the side of the connecting end. The outer peripheral tapered surface 30b is inclined outwardly. The clamp insulator 31 is formed with an inner peripheral tapered surface 31a on the inner peripheral surface thereof, which is opposed to the outer peripheral tapered surface 30b. The inner insulator taper surface 31a of the clamp insulator 31 is brought into surface contact with the outer peripheral taper surface 30b so as to contact 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 circumference of the connection side end portion of the device side shell 20. When the annular lip 31b is brought into contact with the inward flange portion 20e, the clamp insulator 31, the center conductor split clamp 30 and the center contact insulator 23 are prevented from falling off from the device side shell 20.

A nut portion A for screw rotation is formed on each of outer peripheral portions of the device side shell 20, the coupling 11, the coaxial cable side shell 4, and the cap nut 5. Further, in the figure, reference numeral 40 is an O-ring provided for sealing, and 41 is a sealing gasket provided at the end of the coaxial cable-side shell 4 on the connecting end side.

Next, the mounting of the fitting connector 1 having the above configuration will be described with reference to FIGS. 1 and 2. First, the central conductor 61 is slightly projected from the tip of the coaxial cable 60, and the outer coating 63 at the tip of the coaxial cable 60 is stripped off. Then, the cap nut 5 and the coaxial cable side shell 4 are inserted into the tip of the coaxial cable 60 until the annular protrusion 4c contacts the end of the coaxial cable outer conductor 64. After that, the cap nut 5 and the coaxial cable side shell 4 are screwed and connected. By the tightening force due to 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 the tapered surfaces 5a and 8a, and the outer conductor 64 and the outer surface. Tighten and fix the cover 63. This completes the attachment of the coaxial cable-side connecting portion 2.

On the other hand, the device-side shell 20 is connected by inserting the tip of the center contact 21 into a connecting portion (not shown) arranged in the connecting end of the housing device 70 (for example, an amplifier), and connecting. The male screw portion 20b is screwed to the connection end and fixed by screwing. This completes the attachment of the device-side connection section 3 to the housing device 70. In this way, the coaxial cable-side connecting portion 2 and the device-side connecting portion 3 are individually attached to the coaxial cable 60 or the housing device 70, so that in this state, other work can be performed while carrying or waiting. It can be carried out.

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

By this connection, the end surface of the coaxial cable side shell 4 presses the clamp insulator 31 leftward in the drawing, and the clamp insulator 31 moves in response to this press and rides on the center conductor split clamp 30. .. The center conductor split clamp 30 on which the clamp insulator 31 rides is deformed inward in the radial direction, and presses the tubular base end of the center contact 21 in the centripetal direction. Upon receiving this pressure, the tubular base end of the central contact 21 is deformed inward and grips the central conductor 61, whereby the central contact 21 and the central conductor 61 are firmly connected. As described above, the assembling of the fitting connector 1 and the connection between the coaxial cable 60 and the casing device 70 are completed.

[0023]

[Effect of the device]

 As described above, according to the present invention, the fitting connector is divided into the coaxial cable side connection portion and the device side connection portion, and these are connected by the connecting member. Therefore, each connection portion is connected to the coaxial cable respectively. By attaching it to the connecting device and finally connecting them with a connecting member, it became possible to assemble a fitting connector and to connect the coaxial cable and the connecting device. Therefore, as in the past, unless the components of the fitting connector are assembled in the determined order, there is no restriction on work progress such that assembly and connection cannot be done, and it is easier to lay the coaxial cable. ..

Furthermore, when connecting the coaxial cable side connection portion and the device side connection portion, the connection is used to press the center conductor and the center contact with the crimping member. The process of connecting the center conductor and the center contact, such as the process, is no longer required, which simplifies the installation work and eliminates the problem of twisting the coaxial cable during connection.

[Brief description of drawings]

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

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

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

[Explanation of symbols]

 1 Fitting Connector 2 Coaxial Cable Side Connection Part 3 Equipment Side Connection Part 11 Coupling (Coupling Member) 21 Center Contact Member 22 Clamping Member (Crimping Member) 60 Coaxial Cable 61 Center Conductor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Akio Kusunii 1-17-1 Aoki, Kawaguchi City, Saitama Sanei Denki Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A coaxial cable side connecting part (2) and a device side connecting part (3) are provided, and one connecting part (2, 3) is provided with a connecting member (11) for both connecting parts. A central contact member (21) that is rotatably attached and that is provided in the device-side connection portion (3) in response to the connecting operation of the connecting member (11).
And a center conductor (61) of the coaxial cable (60) gripped by the coaxial cable side connection portion (2) are provided with a crimping member (22) for relatively displacing the center conductor (61) in a close proximity direction and press-contacting each other. A characteristic fitting connector.