Heavy duty pneumatic tires preventing uneven wearing

Resilient tires and wheels – Tires – resilient – Anti-skid devices

Patent

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Details

152DIG3, B60C 1113

Patent

active

054452015

ABSTRACT:
An uneven wear-resisting heavy duty pneumatic tire comprises main grooves continuously extending in a tread of the tire along a circumference thereof, land portions separated by the main grooves, and stepped zones each provided in the land. Each stepped zone has a surface located radially inside of the tread by a step a viewed sectionally. Each of said stepped zones is separated from the adajcent land portions via a pair of circumferentially extending grooves or narrow cuts. An uneven wearing-sacrificing portion is formed by the surface of the stepped zone. The uneven wear-sacrificed portion slide-contacts with the tread within the tread ground-contacting area for supporting the load exerted upon the tire.

REFERENCES:
patent: 2197662 (1940-04-01), Hughes
patent: 3024825 (1962-03-01), Kutsmichel
patent: 3763911 (1973-10-01), Montagne
patent: 3782438 (1974-01-01), Mirtain
patent: 4262721 (1981-04-01), Tadokoro et al.
patent: 4353402 (1982-10-01), Burche et al.
patent: 4936363 (1990-06-01), Schuster et al.

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