The Goodyear & Tire Rubber Company

Georges V Adam

Georges Gaston Feider

Claude Lardo

Daniel Scheuren

Robert P Loser

Rene Goergen

Krzysztof Florian Jakubiak

Michel Premont

Tire

Tire tread and buttress

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.

Tire tread for large motor vehicles

A tread (10) for a tire has at least three wide grooves (13,14,15,16) therein. At least two zigzag ribs (19,20,21) are bordered by said grooves and have block elements (22) nested in the reentrant angles of the ribs and separated therefrom by narrow grooves (23). The wide grooves (13,14,15,16) well remain open in a footprint of a tire while the narrow grooves (23) will close up in a footprint of a tire. Tire treads according to the invention may be provided as precured retread material, as part of a newly manufactured tire, or as part of a retreaded tire.

Tire tread and tire including trapezoidal block elements nested in

Tire tread

Growing community of inventors

Bissen, Luxembourg

Georges V Adam