Method of attaching terminal and coaxial cable with terminal

• US 7,632,144 B2
• Filed: 03/01/2007
• Issued: 12/15/2009
• Est. Priority Date: 04/25/2006
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Sakaguchi, Tadahisa, Asakura, Nobuyuki, Onuma, Masanori
• Primary Examiner(s): NASRI, JAVAID H
• Application Number:
  US11/712,423
• Publication Number:
  US 20070249225A1
• Time in Patent Office: 1,020 Days
• Field of Search: 439/585, 439/610, 439/99
• US Class Current: 439/585
• CPC Class Codes: H01R 43/0585 for crimping apparatus with more than two radially actuated mandrels
• CPC Class Codes: H01R 9/0518 Connection to outer conductor by crimping or by crimping ferrule

Abstract

A coaxial cable with a terminal is formed by attaching the terminal to an end of the coaxial cable. A braided conductor at the end of the coaxial cable 1 is folded and covers the insulating sheath. A sleeve covers the braided conductor covering the insulating sheath. All around the sleeve is pressed equally. The terminal is attached to the sleeve.

Claims

1. A method of attaching a terminal to an outer conductor of a circular coaxial cable comprising the steps of:

inserting the outer conductor of the circular coaxial cable, having a braided conductor, into a conductive tubular sleeve;

attaching firmly the outer conductor to the sleeve by pressing equally all around the periphery of the sleeve, in a direction to equally decrease the diameter of the sleeve with a uniform power, by four dies, disposed at 90 degrees relative to each other, which are closed inward and rotate about the sleeve, such that the diameter of the sleeve is reduced and the braided conductor and sleeve attached, while the coaxial cable is kept circular;

to prevent the characteristic impedance of the coaxial cable from partially reducing; and

then

attaching the terminal to the sleeve.

2. The method as claimed in claim 1,

wherein said inserting step includes the steps of:

exposing the outer conductor from an end of the coaxial cable; and

covering an insulating sheath of the coaxial cable with the exposed outer conductor;

before inserting the outer conductor into the sleeve.

3. A circular coaxial cable having a braided conductor and an outer conductor to which a terminal is attached,

wherein the outer conductor is inserted into a conductive tubular sleeve and attached firmly to the sleeve by pressing equally all around the periphery of the sleeve in a direction to equally decrease the diameter of the sleeve with a uniform power, by four dies, disposed at 90 degrees relative to each other, which are closed inward and rotate about the sleeve, such that the diameter of the sleeve is reduced and the braided conductor and sleeve attached, while the coaxial cable is kept circular, to prevent the characteristic impedance of the coaxial cable from partially reducing, and the terminal is then attached to the sleeve.

4. The circular coaxial cable as claimed in claim 3,

wherein the outer conductor is exposed from an end of the coaxial cable, and an insulating sheath of the coaxial cable is covered with the exposed outer conductor, before the outer conductor is inserted into the sleeve.

5. The circular coaxial cable as claimed in claim 3,

wherein the terminal includes a crimping piece for crimping the sleeve.