Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1997-07-24
1999-10-26
Johnstone, Adrienne
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152209AS, 152454, 152455, 152456, 152531, 152533, 152551, 152554, 152555, B60C 306, B60C 930, B60C 1100, B60C 1101
Patent
active
059710489
ABSTRACT:
A pneumatic radial tire has a carcass extending around the tire from bead-to-bead, sidewalls and a rubber tread region which has a profile, when considered in transverse cross section, of a new tire terminating at the sides of the tread in inner and outer shoulder regions, respectively, each shoulder region having a shoulder drop, which is the distance, in the radially inward direction, from the point of maximum tire diameter to a point of the shoulder at the edge of the shoulder region, such that when the tire is mounted on a scheduled wheel rim and inflated to a scheduled pressure, the tread region is asymmetric, having its point of maximum tire diameter offset in the axial direction of the tire from the center line of the tire section in the direction of the inner shoulder, and the shoulder drop of the outer shoulder is greater than the shoulder drop of the inner shoulder such that the tread region has an asymmetric profile, wherein the tread region has a substantially constant tread gauge or thickness except at the inner shoulder which has a locally reduced tread gauge or thickness so that the inner shoulder profile is trimmed.
REFERENCES:
patent: 4840210 (1989-06-01), Kukimoto
patent: 5735979 (1998-04-01), Secondari
Ashmore Stephen Michael
Avari Firdos Phiroz
Johnstone Adrienne
Sumitomo Rubber Industries Limited
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