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US 2011/0030868 A1Published application
Pneumatic tire/rim assembly
AssigneeThe Yokohama Rubber Co., Ltd.
InventorHideki Hamanaka
Life of this patent
Estimating the term…
Abstract
Provided is a pneumatic tire/rim assembly which is improved in the run-flat durability with the mass of the tire being reduced. In a pneumatic tire/rim assembly with a run-flat capability, an air bladder (2) made of a circular ring-shaped film body is inserted inside a pneumatic tire (1) mounted on a rim (R). At least part of the film body is formed of a sealing layer (3) made of a thermoplastic resin or a thermoplastic elastomer composition obtained by blending an elastomer in a thermoplastic resin.
Claims10
A pneumatic tire/rim assembly with a run-flat capability, in which:
- an air bladder made of a circular ring-shaped film body is inserted inside a pneumatic tire mounted on a rim;
- and a space is provided between a tread inner circumferential surface of the pneumatic tire and an outer circumferential surface of the air bladder with an internal pressure of the air bladder being set equal to or higher than that of the pneumatic tire, the pneumatic tire/rim assembly characterized in that
- at least part of the film body is formed of a sealing layer made of any one of a thermoplastic resin and a thermoplastic elastomer composition obtained by blending an elastomer in a thermoplastic resin.
Dependencies are inferred from the claim text.