Pneumatic radial tire for heavy load vehicles having increasing

Details Pneumatic radial tire for heavy load vehicles having increasing Pneumatic radial tire for heavy load vehicles having increasing

1990-03-05

1992-03-31

Knable, Geoffrey L.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1106

Patent

active

050998994

ABSTRACT:
A pneumatic radial tire for heavy load vehicles which is constructed to effectively suppress railway wear, and which has a tire tread provided with at least one circumferential groove to divide a tread in the widthwise direction and a carcass comprising at least one carcass ply of substantially radially extending rubber coated steel cords and a belt layer for reinforcing a crown portion of said carcass ply; wherein the zigzag angle of the main circumferential grooves with respect to an equatorial line of the tire increases in angle as the tread wears out.

REFERENCES:
patent: 3055410 (1962-09-01), Caulkins
patent: 3664402 (1972-05-01), Montagne
patent: 4258691 (1981-03-01), Nakayama
patent: 4262722 (1981-04-01), Takigawa et al.
patent: 4271885 (1981-06-01), Takigawa et al.
patent: 4271886 (1981-06-01), Bachmann et al.
patent: 4423760 (1984-01-01), Treves et al.
patent: 4630661 (1986-12-01), Stelzer

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