Studless tire with radially directed short fibers

Details Studless tire with radially directed short fibers Studless tire with radially directed short fibers

B - Operations, Transporting

60

C

B60C 3/04 (2006.01) B29D 30/00 (2006.01) B60C 11/03 (2006.01) B60C 11/14 (2006.01)

Patent

CA 2324807

A studless tire comprises a tread defining a ground-contacting region, the tread comprising at least a diene rubber and non-metallic short fibers oriented in the tire radial direction. The tire profile satisfies the following equation 1 > TW/S > 0.92 - 0.17 X A wherein TW is the ground-contacting width of the tire; S is the section width of the tire; and A is the tire aspect ratio. In the ground-contacting region, at least one circumferential rib of which total axial width is 15 to 30 % of the ground-contacting width TW may be disposed. The ground-contacting face of the tread may be provided on at least 80 % of its area with unevenness molded by a tire vulcanizing mold so as to have a ten-point mean roughness of from 30 to 500 micrometers.

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