High frequency coaxial connector

• US 4,746,305 A
• Filed: 04/24/1987
• Issued: 05/24/1988
• Est. Priority Date: 09/17/1986
• Status: Expired due to Fees

• Current Assignee: Taisho Electric Industrial Co. Ltd. (Taisho Top Holdings Co. Ltd.)
• Original Assignee: Taisho Electric Industrial Co. Ltd. (Taisho Top Holdings Co. Ltd.)
• Inventors: Nomura, Shinji
• Primary Examiner(s): Weidenfeld, Gil
• Assistant Examiner(s): Pirlot, David
• Application Number:
  US07/042,134
• Time in Patent Office: 396 Days
• Field of Search: 439/311, 439/312, 439/314, 439/317, 439/318, 439/319, 439/578-585
• US Class Current: 439/319
• CPC Class Codes: H01R 13/625 Casing or ring with bayonet engagement
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency

Abstract

A high frequency coaxial connector having a bayonet-tight insertion arrangement for use in a high frequency coaxial circuit, is constructed with an outer installation and an inner installation. The outer installation comprises an external locking sleeve, an internal contact sleeve, a cylindrical insulation body tightly inserted in a contact portion of the internal contact sleeve, an outer insulation sleeve, and a coil spring, one end of which is directly brought into contact with the rear edge of a stopper portion of the internal contact sleeve, and the other end of which is directly brought into contact with the rear edge inner wall of the outer insulation sleeve. The inner installation comprises of a unitarily constructed central contact pin, an insulation plate having a front surface directly brought into contact with a rear edge of the contact pin, and an inside sleeve receiving the insulating plate and the insulating body of the coaxial cable.

Claims

1. A high frequency coaxial cable connector of the bayonet type for use with a high frequency coaxial cable of the type having an internal lead wire;

an outer installation means and an inner installation means;

said outer installation means comprising an external locking sleeve having a bayonet connection groove and a connecting claw, an internal contact sleeve having a longitudinal end portion coaxially disposed within said external locking sleeve, said internal contact sleeve having an internal contact portion and an external flange stopper, said flange stopper being in contact with one longitudinal end of said external locking sleeve, said internal contact sleeve also having a receiving portion for receiving said coaxial cable, a cylindrical insulating body having an internal opening and an external contact section received in said contact portion of said internal contact sleeve, an outer insulation sleeve having one part disposed about said external locking sleeve and another part about an intermediate portion of said internal contact sleeve such as to provide a gap between said another part of said outer insulation sleeve and said intermediate portion of said internal contact sleeve, said outer insulation sleeve having a longitudinal rear edge wall, a coil spring within said gap and disposed between said rear edge wall of said outer insulation sleeve and said flange stopper of said internal contact sleeve, said outer insulation sleeve having a locking opening for receiving said connecting claw of said locking sleeve to thereby lock said locking sleeve and said outer insulation sleeve together,

said inner installation means comprising a central contact pin having an external support portion disposed in said internal opening of said cylindrical insulating body of said outer installation means, said central contact pin receiving said internal lead wire of said coaxial cable, said central contact pin having an inner longitudinal end, an insulation plate in contact with said inner longitudinal end of said central contact pin, and an inside sleeve extending into said receiving portion of said internal contact sleeve of said outer installation means and having a longitudinal end recess for receiving said insulation plate.

2. A high frequency coaxial cable connector according to claim 1 wherein said inside sleeve has an internal passage receiving said insulation body and said internal lead wire of said coaxial cable, said external conductor and said sheath of said coaxial cable being disposed between said inside sleeve and said receiving portion of said internal contact sleeve.

3. A high frequency coaxial cable connector according to claim 1 wherein said coaxial cable is of the type having an outer sheath, an external conductor, an insulation body, and an internal lead wire, said inner installation means being constructed as a unitary unit and being inserted into said outer installation means to dispose said external conductor and said sheath of said coaxial cable between said inside sleeve of said inner installation means and said receiving portion of said internal contact sleeve of said outer installation means.

4. A high frequency coaxial cable connector according to claim 3 wherein said insulation plate has a recess receiving a longitudinal end portion of said insulation body of said coaxial cable.

5. A high frequency coaxial cable connector of the bayonet type for use with a high frequency coaxial cable of the type having an internal lead wire, an insulation body, an external conductor, and an outer sheath comprising:

an outer installation means and an inner installation means;

said outer installation means comprising an external locking sleeve having a bayonet connection groove and an outwardly extending claw, an internal contact sleeve having a longitudinal end portion coaxially disposed within said external locking sleeve, said longitudinal end portion of said internal contact sleeve having a plurality of axially extending grooves, said internal contact sleeve having an internal contact portion and an external flange stopper, said flange stopper being in contact with one longitudinal end of said external locking sleeve, said internal contact sleeve also having a fixing portion for fixing therewith said coaxial cable, a cylindrical insulating body having an internal opening and an external contact section received in said contact portion of said internal contact sleeve, an outer insulation sleeve having one part disposed about said external locking sleeve and another part about an intermediate portion of said internal contact sleeve such as to provide a gap between said another part of said outer insulation sleeve and said intermediate portion of said internal contact sleeve, said outer insulation sleeve having a longitudinal rear edge wall, a coil spring within said gap and disposed between said rear edge wall of said outer insulation sleeve and said flange stopper of said internal contact sleeve, said outer insulation sleeve having a locking opening for receiving said claw of said locking sleeve to thereby lock said locking sleeve and said outer insulation sleeve together whereby said locking sleeve and said outer insulation sleeve are unitarily longitudinally slidable relative to said internal contact sleeve in opposition to the bias of said coil spring,

said inner installation means comprising a central contact pin having a contact portion and an external support portion disposed in said internal opening of said cylindrical insulating body of said outer installation means, said central contact pin having an internal passage for receiving the internal lead wire of said coaxial cable, said central contact pin having an inner longitudinal end, an insulation plate in contact with said inner longitudinal end of said central contact pin, said insulation plate having an internal opening through which said internal lead wire of said coaxial cable passes, said insulation plate also having a recess receiving a longitudinal end portion of the insulation body of said coaxial cable, and an inside sleeve extending into said fixing portion of said internal contact sleeve of said outer installation means and having a longitudinal end recess for receiving said installation plate, said inside sleeve having an internal passage receiving the insulation body and internal lead wire of said coaxial cable, the external conductor and the sheath of said coaxial cable being disposed between said inside sleeve and said fixing portion of said internal contact sleeve.