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AssigneeBridgestone Corporation
InventorsYuji Yamaguchi, Masahiko Yamamoto, Yugo Zuigyo, Osamu Saito, Tetsuhito Tsukagoshi
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There is proposed a toric air bag for a safety tire capable of sufficiently and equally contacting with a full inner face of a tire in the expansion-deformation of the toric air bag by a drop of an internal pressure in the tire, wherein at least an expansion-deforming portion of the toric air bag having a hollow torus shape as a whole is constructed with a tension support member, and to the expansion-deforming portion is given a property indicating a characteristic of extension ratio-tensile force that tensile force per unit width is substantially and gradually increased with the increase of elongation through the expansion-deformation.
A toric air bag adapted to be placed inside a safety tire and when inflated under a certain internal pressure and expansion-deformed by a drop of an internal tire pressure subrogates a load support from the tire, wherein at least an expansion-deforming portion of the toric air bag having a hollow torus shape is made of a tension support member and the expansion-deforming portion has a characteristic of extension ratio-tensile force that as an extension is increased by the expansion-deformation, a tensile force per unit width is gradually increased;
Dependencies are inferred from the claim text.