Studless tire

Details Studless tire Studless tire

1996-11-15

1999-12-14

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

15220918, 15220922, 15220927, 152902, 152DIG3, B60C 1111, B60C 1112, B60C10700

Patent

active

060004509

ABSTRACT:
A studless tire comprises tread blocks having a narrow-width center portion, a heel-side increasing-width portion and a toe-side increasing-width portion, wherein the axial width of the block becomes minimum in the narrow-width portion and increases toward the heel edge and toe edge in the heel-side and toe-side increasing-width portions, and the minimum width in the narrow-width portion being in the range of from 0.5 to 0.9 times the average of the maximum width in the heel-side increasing-width portion and the maximum width in the toe-side increasing-width portion, whereby the stress produced in the block rubber when a braking force or driving force acts thereon increases the apparent block rigidity to decrease the block edge lifting and thereby uneven wear can be decreased.

REFERENCES:
patent: D72619 (1927-05-01), Greer
patent: D194733 (1963-02-01), Hawkinson
patent: 3998256 (1976-12-01), Verdier
patent: 4200134 (1980-04-01), Takigawa et al.
patent: 5031680 (1991-07-01), Kajikawa et al.
patent: 5385189 (1995-01-01), Aoki et al.
patent: 5605588 (1997-02-01), Hatakenaka et al.

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