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Patent Searching and Data


Title:
PRODUCTION OF CYLINDRICAL RUBBER MOLDED ARTICLE
Document Type and Number:
Japanese Patent JPH11300850
Kind Code:
A
Abstract:

To produce a cylindrical rubber molded article by winding accurately and efficiently an unvulcanized rubber sheet on a mandril without requiring piling up.

Winding processing of an unvulcanized rubber sheet is performed by a method wherein a winding starting end is unwound out by holding it with the first suction pad 3 and is stuck on the outer peripheral face of a mandril 2 and an unvulcanized rubber sheet 1 is wound on the mandril by rotating the mandril 2 while the unvulcanized rubber sheet 1 is unwound out and on the midway of winding, the unvulcanized rubber sheet 1 is held by suction of the first suction pad 3 and the second suction pad 4 arranged in parallel and the unvulcanized rubber sheet 1 is cut between both pads and the next winding starting end is held by suction of the first suction pad 3 and at the same time, the winding terminal end is held by suction of the second suction pad 4 and the unvulcanized rubber sheet is wound on the mandril while the winding terminal end is held by the second suction pad 4 and the winding terminal end held by the second suction pad 4 is stuck on the outer peripheral face of the mandril 2.


Inventors:
INOUE NOBUO
SUZUKI MASAO
MEGURO NORIO
Application Number:
JP12527098A
Publication Date:
November 02, 1999
Filing Date:
April 20, 1998
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
B29D29/00; B28B11/00; B29K21/00; (IPC1-7): B29D29/00; B28B11/00
Attorney, Agent or Firm:
Takashi Kojima (1 person outside)