Tire tread for large motor vehicles

Details Tire tread for large motor vehicles Tire tread for large motor vehicles

1991-11-18

1993-05-18

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152DIG3, B60C 1112

Patent

active

052117812

ABSTRACT:
A tire tread (20) comprises four circumferentially extending grooves (1-4) dividing the tread into five continuous ribs (10-14) of elastomeric material. The edges of the grooves, which separate the different ribs from each other are constituted by zig-zag shaped repetitive design units (5-8;35-38). The repetitive design units on either side of the grooves (1-4) extend in circumferentially opposite directions and have each four legs, a first (5;35) and third (7;37) short leg alternating with a second (6;36) and fourth (8;38) long leg. The ribs include series of deep (40-42, 43-45) and shallow (50-52, 53-55) sipes as well as deep (48, 49) cuts.

REFERENCES:
patent: D218215 (1970-07-01), Wittenmyer
patent: D222319 (1971-10-01), Blankenship
patent: D230532 (1974-02-01), Stell a
patent: 4449560 (1984-05-01), Tansei et al.
patent: 5097882 (1992-03-01), Adam et al.

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