Off-road pneumatic tire with vibration-reducing lugged tread

Details Off-road pneumatic tire with vibration-reducing lugged tread Off-road pneumatic tire with vibration-reducing lugged tread

1989-08-29

1991-03-26

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209R, B60C 1104, B60C 1100, B60C 1103

Patent

active

050021109

ABSTRACT:
A pneumatic tire comprising a tread formed with a plurality of laterally extending groove portions and land portions which are alternatively arranged with a substantially constant pitch in a circumferential direction of the tire, wherein a land portion ratio of a total length of the land portion on a cross line, which is substantially perpendicular to the circumferential direction, to a width of the tread, varies along the cricumferential direction, has not less than two maximum values per the constant pitch and has minimum values, the maximum values each having almost the same values, and the minimum values being not less than 55 percent of the maximum values.

REFERENCES:
patent: 3786848 (1974-01-01), Brown et al.
patent: 4254811 (1981-03-01), Devaux
patent: 4289183 (1981-09-01), Abe et al.
patent: 4412575 (1983-11-01), Maeda et al.
patent: 4445561 (1984-05-01), Kono et al.
patent: 4664167 (1987-05-01), Kawakami et al.

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