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US 6,786,990 B1Granted
Method of manufacturing sealant-containing tires, and sealant-containing tire
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorToshio Yamagiwa
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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorToshio Yamagiwa
Estimating the term…
A green tire (24) prepared by superposing an inner liner (2) onto the inner surface of a tire body (1) is set in an upper die (29) and a lower die (30). In this condition, a pressure bag (31) placed inside the green tire (24) is expanded by air pressure to perform vulcanization and forming. At this time, a mold release sheet (9) such as a fluoro resin sheet having a mold releasing property on one surface only is interposed between a part of the inner liner (2) and the tire body (1) in such a manner that the surface having the mold releasing property is opposed to the inner liner (2). Accordingly, the inner liner (2) is prevented from being bonded by vulcanization to the tire body (1), thereby forming a sealant chamber having a proper shape for charging a sealant thereto. In case the mold release sheet (9) is formed of a material soluble in the sealant, a reduction in sealability of the sealant due to the mold release sheet (9) left in the sealant chamber can be avoided.
A sealant-incorporated tire manufacturing method comprising the steps of superimposing an inner liner onto an inner surface of a tire body prior to vulcanization and bonding at least a part of said inner liner to the inner surface of said tire body by vulcanization to define an annular sealant chamber by said inner liner inside a tread of said tire body, in which a mold release sheet having a mold releasing property are placed on a portion of said inner liner facing to said sealant chamber prior to vulcanization,
A sealant-incorporated tire manufacturing method comprising the steps of superimposing an inner liner onto an inner surface of a tire body prior to vulcanization and bonding at least a part of said inner liner to the inner surface of said tire body by vulcanization to define an annular sealant chamber by said inner liner inside a tread of said tire body, in which a mold release sheet having a mold releasing property are placed on a portion of said inner liner facing to said sealant chamber prior to vulcanization, wherein a plurality of mold release sheets are laminated one on another.
A sealant-incorporated tire manufacturing method comprising the steps of superimposing an inner liner onto an inner surface of a tire body prior to vulcanization and bonding at least a part of said inner liner to the inner surface of said tire body by vulcanization to define an annular sealant chamber by said inner liner inside a tread of said tire body, in which a mold release sheet having a mold releasing property are placed on a portion of said inner liner facing to said sealant chamber prior to vulcanization, wherein said mold release sheet is folded into a corrugated shape prior to vulcanization, and said mold release sheet is expanded in the vulcanization step.
Dependencies are inferred from the claim text.