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Title:
ポリマー碍子の製造方法及びそれに用いる端部加工装置
Document Type and Number:
Japanese Patent JP4549003
Kind Code:
B2
Abstract:
A method of producing a polymer insulator having a core, an overcoat member arranged on the core, and a fitting member for securing the core at its both ends, wherein the core and the fitting member are secured under pressure at both ends of the core by contacting a ring-shaped protrusion portion arranged at both ends of the overcoat member to an open inner end of the fitting member, includes the steps of: forming the overcoat member on the core; forming the ring-shaped protrusion portion integrally with the overcoat member by processing an end portion of the overcoat member; and securing the fitting member. Moreover, an end processing apparatus utilized for the method of producing a polymer insulator includes: a core holder for holding a core; a rotation drive device arranged rotatably around the core holder at a center of a central axis of the core; and a whetstone having a shape for forming an end portion of an overcoat member of the polymer insulator, which is arranged to the rotation drive device rotatably around its center axis; wherein the whetstone itself is rotated and the rotated whetstone is rotated around the end portion of the overcoat member on the core held by the core holder, so that a protrusion portion is formed integrally with the end portion.

Inventors:
Toshiro Marumasu
Application Number:
JP2001571429A
Publication Date:
September 22, 2010
Filing Date:
March 26, 2001
Export Citation:
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Assignee:
Nippon Insulator Co., Ltd.
International Classes:
H01B19/00; H01B17/32
Domestic Patent References:
JPH09153315A1997-06-10
JPH10321067A1998-12-04
JPH09237537A1997-09-09
JPH09153315A1997-06-10
JPH10321067A1998-12-04
JPH09237537A1997-09-09
Attorney, Agent or Firm:
Kenji Sugimura
Nobuyuki Okajima
Kosaku Sugimura