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Title:
METHOD OF MANUFACTURING TIRE TUBE CONTAINING SEALANT
Document Type and Number:
WIPO Patent Application WO/1998/008670
Kind Code:
A1
Abstract:
A tube stock material (2'), an interior of which is compartmented by a partition (5) into an air chamber (3) and a sealing chamber (7), is provided in a sealant chamber peripheral wall (40) with an air vent hole (4) communicating to the sealant chamber (7). In a vulcanizing process, positive vulcanization can be carried out by discharging an air remaining in the sealant chamber (7) through the air vent hole (4) to bring the partition (5) into close contact with the sealant chamber peripheral wall (40) when the tube stock material (2') is inserted into a heating die (18) and a high temperature, high pressure gas is fed into the air chamber (3). When the tube stock material (2') is taken out of the heating die (18), the sealant chamber (7) will not expand due to the presence of the air vent hole (4), and so the partition (5) will not be forcedly stretched toward a peripheral wall (4) of the air chamber to prevent the partition (5) from permanent expansion.

Inventors:
YAMAGIWA TOSHIO (JP)
MAKISAKA NOBORU (JP)
HINO TOMOYOSHI (JP)
Application Number:
PCT/JP1997/003004
Publication Date:
March 05, 1998
Filing Date:
August 28, 1997
Export Citation:
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Assignee:
HONDA MOTOR CO LTD (JP)
INOUE GOMU KOGYO KK (JP)
YAMAGIWA TOSHIO (JP)
MAKISAKA NOBORU (JP)
HINO TOMOYOSHI (JP)
International Classes:
B29C48/11; B29C48/12; B29C65/02; B29C67/00; B29C73/22; B29D23/24; B29C43/10; B29C48/00; (IPC1-7): B29D23/24; B29D30/06; B29C35/02; B29C73/16
Foreign References:
JPS5461705A1979-05-18
JPS334708Y1
JPS292643B1
JPH09174710A1997-07-08
JPH09300481A1997-11-25
Attorney, Agent or Firm:
Ochiai, Takeshi (9-1 Shinbashi 5-chom, Minato-ku Tokyo 105, JP)
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