Heavy duty pneumatic tire

Details Heavy duty pneumatic tire Heavy duty pneumatic tire

B - Operations, Transporting

60

C

152/126

B60C 11/06 (1980.01)

Patent

CA 1119931

Abstract of the Disclosure A heavy duty pneumatic tire includes a tread in a crown of a tire body reinforced by a toroidal carcass extending between a pair of annular bead cores. The tread is formed with a pair of main wide grooves circumferentially spaced apart at least one half of a tread width of the tire on both sides of a central circumferential line and a wide subgroove extending along the central circumferential line and in parallel with the main wide grooves to form first ribs bounded by the wide subgroove and the main wide grooves and second ribs bounded by the main grooves and tread edges. Each the first rib is formed with a narrow groove circumfer- entially extending to divide the first rib into two parts. The tire according to the invention is superior in antiskid characteristic on wetted roads by improving the drainage without sacrificing the wear resistance of the tire.

327874

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