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US 9,440,500 B2Granted
Pneumatic tire
AssigneeBridgestone Corporation
InventorsToshiyuki Watanabe, Yoshiyuki Waki, Taiga Ishihara, Hidetoshi Yokota, Seiji Ishikawa, Kento Hirohata, Akio Kusano
Life of this patent
Estimating the term…
Abstract
A pneumatic tire in which a cavity resonance sound is reduced while punctures are easily repaired with a puncture sealant. The pneumatic tire has a fibrous region where short fibers are bonded onto an inner surface of the tire. A circumferential fiberless region where short fibers are not bonded onto the inner surface of the tire extends circumferentially between both ends of a tread ground contact area.
Claims4
A pneumatic tire having a fibrous region where short fibers are bonded onto an inner surface of the tire comprising:
- a plurality of fiberless regions comprising:
- a circumferential fiberless region where short fibers are not bonded onto the inner surface of the tire, the circumferential fiberless region extending circumferentially, and disposed on the inner surface of the tire within a tread ground contact area, wherein the circumferential fiberless region is situated in a tread center portion and with an equatorial plane of the tire as a center of the width of the circumferential fiberless region, a width of the circumferential fiberless region is 0.05 TW or more and less than 0.5 TW, TW corresponding to a tread contact width, wherein the circumferential fiberless region is bounded by the fibrous region, and
- a widthwise fiberless region where short fibers are not bonded to the inner surface of the tire, the widthwise fiberless region extending widthwise from the circumferential fiberless region;
- and
- a fiber region comprising a widthwise outer region where short fibers are bonded to the inner surface of the tire,
- wherein an outer-most edge of the widthwise fiberless region coincides with an outer-most edge of the tread ground contact area, and
- wherein the widthwise outer region extends outwards in a widthwise direction from the widthwise fiberless region.
4 more elements
Dependencies are inferred from the claim text.