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Title:
ANTENNA AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2004179791
Kind Code:
A
Abstract:

To provide an antenna wherein no thickness variation takes place in a resin coating 16 integrally molded with an antenna element 10 by injecting insulating resin to a mold 14 for integrally molding the resin coating 16 from the tip end side of the antenna element 10.

An antenna element 10 is inserted for integrally molding a resin molded member 12 of the insulating resin, a plurality of protrusions 12a having predetermined heights are arranged on the outer circumferential face of the resin molded member 12 at fixed intervals in the axial direction at uniformly quarterly divided positions on the outer circumference, and the tip end of the resin molded member 12 is shaped into a quadrangular prismoid 12c having conical faces 12b facing the quarterly divided positions formed with the projections 12a. The resin molded member 12 is inserted to the mold 14 and the resin coating 16 is molded integrally of the insulating resin injected from the tip end so as to have a thickness equal to predetermined heights of the protrusions 12a.


Inventors:
ONO SADAO
KASAKAMI SHIGENOBU
Application Number:
JP2002341360A
Publication Date:
June 24, 2004
Filing Date:
November 25, 2002
Export Citation:
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Assignee:
YOKOWO SEISAKUSHO KK
International Classes:
B29C45/16; H01P11/00; H01Q1/36; B29C45/14; H01Q1/40; (IPC1-7): H01Q1/40; B29C45/14; H01P11/00
Attorney, Agent or Firm:
Tetsuo Moriyama



 
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