JPS5927481A - Coaxial coupler and method of forming same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Background of the Invention The present invention relates to electrical couplings, and more particularly to improvements in bayonet coaxial plugs and sockets. Coaxial couplers consisting of a male connector, or plug, and a cooperating female connector, or socket, have been used for many years. The present invention relates more particularly to an improved connector plug and to a new and improved method of manufacturing plug pins and shells, these elements being formed from thin blanks by a stamping and drawing operation, and the method of manufacturing and significant advantages reside from elements formed in this manner.

It has been common practice in the manufacture of bayonet connectors to form certain parts, such as pins and shells, on automatic threading machines. This method is relatively time consuming and results in considerable total wastage of material. In particular, the connecting pin portion of the plug as well as the surrounding shell were fabricated in this way. Conventional configurations also invariably include a plug center pin that is formed independently of the rest of the connector and is clamped together when the pin is first soldered to the conductor.

It is then inserted into the completed plug. This pin mating method is relatively time consuming and difficult, and the pin removal operation can sometimes lead to connector failure.

Accordingly, it is an object of the present invention to provide an improved coaxial coupler and method of fabrication thereof.

Another object of the invention is to provide a coaxial coupler with improved pins in the contact and sleeve portions formed by a stamping and drawing operation.

Another object of the present invention is to provide an improved coaxial coupler in which the method and mechanism for attaching wires to the coupler is simplified.

Another object of the invention is to provide a coaxial coupler that is efficient, has a long life, and is easier to manufacture.

Other objects of the invention will become apparent upon understanding the illustrative embodiments described below, and various advantages not mentioned herein will occur to those skilled in the art from practical use of the invention. Dew.

Preferred embodiments of the invention are shown in the accompanying drawings, selected for purposes of illustration and description.

(2) DESCRIPTION OF THE PREFERRED EMBODIMENTS In accordance with the present invention, a coupler 1 comprising a socket 2 and a plug is illustrated in FIG. The coupler 1 makes a removable connection between the two sections 4 and 5 of the coaxial cable. The mounting for attaching the socket 2 to the wall or panel is illustrated at 6, and the radially extending mounting in which the nut 7 attaches the housing 8 of the socket to its nozzle 8 is attached to the wall 6 by means of a flange 9. Cable 4 is
One end of the protruding contact 10 is attached to the socket 2. Contact 1
The opposite end of 0 is mounted inside the internal insulator 11 and receives pin 12 (FIG. 4) in the connector plug. The connector plug has an outer coupling member 2 including a locking slot 15 for engaging a locking pin 16 into the socket 8.
0. The shield 17 of the coaxial cable 5 is attached to the protrusion of the plug shell 1g surrounded by the muzzle 19.

Next, the fourth column shows the coupling 1 in the separated position and the connected position of the coupler 1, respectively.
A more detailed explanation will be given with reference to the drawings and FIG. 5.

Improvements in the coupler 1 of the present invention are embodied in the plug pin 12 and surrounding plug shell 18 (FIGS. 1 and 4). As illustrated in these figures,
A preferred embodiment (5) of the wobbly includes a shaped metal outer bonding member 20. The coupling member 20 has a coupling flange 21 at one end and a knurled gripping flange 22 at the other end. The coupling slot 15 receiving the cooperating connecting pin 16 in the socket 2 is connected to the flange 2
1 and the flange 22. Flange 2
A radially inwardly projecting portion of shell 18 has an opening 2 for receiving cable engagement end 2u of shell 18. Flange 2
2 also includes a shell 18 in place within the coupling member 20.
There is a circular groove 25 in which a coupling spring 26 is placed for locking. The connecting pin 12 of the plug for connecting the center conductor 27 of the coaxial cable 5 to the contact 10 in the socket 2 is
It is fixedly mounted within an insulating member 28 molded from a suitable plastic such as polyethylene. The insulator 28 is press fit into mating engagement with the shell 18 and the pin 12
is locked to the insulator 28. Spring washer 29 and shell 1g
The thick socket connecting part 0 and the flange 2 of the connecting member 20
and lock the shell assembly 18 in place within the coupling member 20.

(6) As illustrated in FIG. 4, the shell 18.

It has a generally cylindrical flexible front coupling part 30 which engages the housing part 8 of the socket 2. This front joint part 50
has a central cylindrical portion 51 (see Figure 1) that receives the insulator 2g, and a small diameter portion 21 that protrudes rearward beyond the slanted coupling member 20.
↓ is there to connect with the shield 17 of the coaxial cable. Shell 18 is.

Made of metal, preferably made of metal. The forming is done by a stamping and drawing operation, one step of which is illustrated generally in FIG. 2, which shows the thin plate being drawn between die members 55 and 54. In the known method of finishing the hollow shell 1g into the shape illustrated in Fig.
One or more stamping and forming steps are required. A number of longitudinal slots 5 are provided in the shell 18 to facilitate the spring engagement of the socket 2 and the shell 18. shell 18
This manufacturing method provides the shell with excellent spring-action retention, as the drawing operation serves to stiffen the blank material stamped to form the shell. This provides a plug shell part 1g that provides a very low resistance, instant (7) electrical contact and has a long spring life, allowing the plug to remain firmly connected and for an unlimited number of connections. enable withdrawal.

The pin portion 12 of the plug is similarly formed by punching and drawing operations to have the hollow shape illustrated in FIG. The pin 12 has a protruding coupling portion 36 and a mounting flange 37 which engages the insulator 28 when the outer pin end 38 is rounded or bent to engage the insulator 28. do. A pin formed in this manner has the same advantages as described with respect to sleeve member 18. Pin 12 is easily fabricated and has excellent mechanical and electrical properties. Attachment of the plug 12 to the coaxial cable is simplified as only a simple crimping operation is used to attach the wire.

This is an improvement over current coaxial connectors, where each pin is individually soldered or clamped to the coaxial wire before being inserted into the plug, and where the pin's retention within the plug is dependent on its connection to the cable. 3(8) where ρ is selected...If a step is used for the rounding, a small hole may be provided at the end of the pin 12.

Figures n and 5 illustrate the coupler 1 in the disconnected position and the connected position, respectively, and show the pin 1 of the plug.
2 and sleeve 1g are shown moved from the disengaged position of FIG. 4 to the tightly coupled conductive position illustrated in FIG. In FIG. 5, the elastic shell 18 has a socket
The pin 12 is in frictional engagement with the housing 8 and is in electrically conductive engagement, and the pin 12 is in frictional engagement with the contact 10 of the socket 2.

in conductive engagement. Contact 10 is also preferably formed by a stamping and drawing operation from a thin material which provides the same advantages described above for plug pin 12 and shell portion 1g.

6 and 7 illustrate the clamping apparatus and method for attaching coaxial cable wire 27 to the fully assembled plug of the present invention. To attach the wire 27, the cable insulator IIO must be cut appropriately to occupy the position shown, and the out-of-coax device 7 must also be cut 9) for attachment to the end 211 of the shell 18, after which the wire 27 can be attached. First, insert it into the hollow pin 12.

One type of clamping tool has crimping parts I2 and L+3.
6 and 7 including FIG.

The clamping portions 112 and +45 are shaped to fit within the plug case and around the hollow pin 120.

The relative movement between the sides of tool 111 creates a radially inwardly directed force between clamping portions 112 and ) that forces pin 12 into a firm lock with wire 27 .

The clamping connection of the shield 17 of the coaxial cable to the shell neck 21+ is completed by inserting the neck 2 under the shield and covering the shield 17 with a tubular solar wheel made of Shinchu. Clamping tool I5 for clamping and tightening the sun wheel through the shield 17 and engaging it with the shell neck 21+
1 to strengthen individual attachments and provide low-resistance electrical attachments. It can be seen that if a suitable clamping tool is used, the pin and shield can be clamped together at the same time.

Improved connectors for use with coaxial connectors (10) It will be seen that a coupler is provided. %.

An improved plug is provided having a shell member and pin member that are improved and easier to fabricate than heretofore. In addition to being easy to form, these members facilitate snap-on assembly of the plug and mating cable, as well as improve electrical contact and extend mechanical life through improved spring-action retention properties. Lengthen.

Various changes may be made in the form, construction and arrangement of parts herein without departing from the spirit and scope of the invention and yet without sacrificing any of its advantages.
It is to be understood that all matter in this specification is to be interpreted in an illustrative and not a limiting sense.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a coaxial coupler according to the present invention, and FIG. 2 is a perspective view of an aperture operation according to the present invention. Fig. 4 is a tributary view of the plug sleeve according to the invention; Fig. 4 is a tributary view of the coupler in the separated position; and Fig. 5 is a tributary view of the coupler in the coupled position. Figures 6 and 7 are side views showing the clamping operation. 2-1 connector socket, 3-1 connector plug,
10--one contact, 12--pin, 18--shell, 2g-
One insulator. Procedures Amendment (Method) September 1982
June 6th, Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office, Inc., 1982, Patent Application No. 82887
No. 2 Name of invention←device→, classification coaxial coupler of designated goods and method of forming the same, relationship with the amended person case Patent applicant 4, agent

Claims (1)

Claims: L. A coaxial connector plug having a pin mounted within an insulating member surrounded by a shell and configured to engage a cooperating connector socket, wherein the pin is hollow and is configured to engage a cooperating connector socket. A coaxial connector plug characterized by being formed from a work-hardened metal plate and fixedly attached to an insulator. 2. A coaxial coupler consisting of a coaxial connector plug and a connector socket, wherein the plug has a pin mounted in an insulating member surrounded by a shell, the pin is hollow, and the pin and the shell are hollow. is formed of a work-hardened metal plate, the pin and the shell are fixedly attached to an insulating member, and the socket has a hollow contact for receiving the pin and is formed of a work-hardened metal plate. coaxial coupler. 3 Connector plug and connector/plug that cooperates with it
A method of forming a coaxial coupler having a socket, wherein a pin of the plug and an enclosing shell electrically engage a hollow contact of the socket and an enclosing housing, the pin, shell and contacts being formed by a punching and drawing process. A method of forming a coaxial coupler, comprising steps.