Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1990-05-10
1992-02-18
Knable, Geoffrey L.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
D12146, B60C 1111
Patent
active
050885367
ABSTRACT:
An all season type tire tread (11) comprises a plurality of laterally extending grooves (36) having curved portions adjacent to each lateral edge (TE1, TE2) of the tread, said curved portions extending in circumferentially opposite directions. Axially spaced zig-zag shaped grooves (4-8) extend circumferentially around the tread, every fourth leg of a zig-zag groove being coincident with a portion of a laterally extending groove (36). Two legs adjacent to said fourth leg connect the laterally extending grooves to short semi-blind grooves (19) having their central portion coincident with every other fourth leg of the zig-zag shaped groove. The various grooves cooperate to define block elements (20-25), arranged in circumferential rows (30-35) and having the shape of an "S" or of a "Z". The blocks can include a plurality of slots (50-53) and humps (29) can be located between neighboring blocks.
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Constant Michel
Graas Maurice
King David L.
Knable Geoffrey L.
The Goodyear Tire & Rubber Company
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