Pneumatic tire excellent in uneven wear resistance

Details Pneumatic tire excellent in uneven wear resistance Pneumatic tire excellent in uneven wear resistance

1985-10-21

1987-06-30

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1111

Patent

active

046762906

ABSTRACT:
A pneumatic tire excellent in uneven wear resistance, is provided with a tread pattern which comprises a plurality of main grooves extending zigzag along the circumference of a tread, numerous transverse grooves linearly extending in at least one land portion defined between the adjacent main grooves and between the main grooves at a depth shallower than the main grooves, each one of said transverse grooves being provided in every one zigzag pitch of the main groove, a number of blocks separatedly formed and arrayed by the main grooves and the transverse grooves, and a pair of notch grooves provided in each of the blocks and branching from the main grooves sandwiching the block for mitigating difference in rigidity between the edge portions and the central portion of the block.

REFERENCES:
patent: 3559712 (1971-02-01), Verdier
patent: 4230512 (1980-10-01), Makino et al.
patent: 4550756 (1985-11-01), Hinkel

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