Pneumatic tire tread with plural overlapping narrow grooves in s

Details Pneumatic tire tread with plural overlapping narrow grooves in s Pneumatic tire tread with plural overlapping narrow grooves in s

1989-01-31

1990-09-18

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152DIG3, B60C 1106

Patent

active

049571494

ABSTRACT:
A pneumatic tire has a tread region and a pair of shoulder regions, one extended radially inwardly from each tread edge, and the tread region is provided with a pair of circumferentially extending shoulder ribs, and the shoulder regions are provided with buttress hollows arranged circumferentially at intervals, wherein at least one of the shoulder ribs is provided with circumferentially extending narrow grooves, which narrow grooves are arranged in the circumferential direction of the tire so that the circumferentially adjacent narrow grooves overlap with each other at their end portions, and the locations of the overlaps in the narrow grooves are coincident with the locations of the buttress hollows in the circumferential direction of the tire.

REFERENCES:
patent: 3605847 (1971-09-01), Gough
patent: 4736783 (1988-04-01), Motomura et al.
patent: 4836257 (1989-06-01), Mamada et al.

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