Heavy duty tire having ground contacting face at 70% and...

Details Heavy duty tire having ground contacting face at 70% and... Heavy duty tire having ground contacting face at 70% and...

2011-04-05

2011-04-05

Maki, Steven D (Department: 1747)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S209180, C152S454000, C152S902000

Reexamination Certificate

active

07918256

ABSTRACT:
A heavy-duty tire having a tread portion improved in the shoulder wear is disclosed. Under the maximum load condition[W100], the tread portion has a ground contacting face G[W100] having circumferential lengths L97[W100] and L70[W100] at specific axial positions. Under the 70% load condition[W70], the tread portion has a ground contacting face G[W70] having lengths L97[W70] and L70[W70] at specific axial positions. The lengths L70[W100], L97[W100], L70[W70] and L97[W70] satisfy specific conditions: 0.95<L70[W100]/L97[W100]<1.05; and 1.03<L70[W70]/L97[W70]<1.20.

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VDI Berichte (VDI Report 788) by Verein Deutscher Ingenieure (Union German Engineers), published Sep. 1989, Hannover, Germany, pp. 179, 189 (with English translation of p. 189).

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