Tire for heavy load that prevents center wear and river wear

Details Tire for heavy load that prevents center wear and river wear Tire for heavy load that prevents center wear and river wear

1992-10-09

1995-03-07

Johnstone, Adrienne

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152454, B60C 300, B60C 1106

Patent

active

053949153

ABSTRACT:
A tire for heavy load with a aspect ratio of 80% or less has five ribs which are a center rib extending on a tire equator, a pair of outer ribs extending along a tread edge and a pair of intermediate ribs each extending between the center rib and the outer ribs. An outer end line of the intermediate rib extends in the circumferential direction in zigzags. In a state of 5% internal pressure, a distance (X) from the tire equator line to a center line (Q) of the zigzagged outer end line is in a range of 0.25 to 0.275 times the tread width (WT). A tread radius of curvature R under the state of 5% internal pressure and a difference (Y=y2-y1) satisfy the following equation (1):

REFERENCES:
patent: 4037637 (1977-07-01), Arimura et al.
patent: 4082132 (1978-04-01), Arai et al.
patent: 4724878 (1988-02-01), Kabe et al.
patent: 4739812 (1988-04-01), Ogawa et al.
patent: 4955416 (1990-09-01), Takeuchi et al.
patent: 4976300 (1990-12-01), Takehara et al.

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