Tread for pneumatic vehicle tires
AssigneeContinental Gummi-Werke Aktiengesellschaft
InventorsKlaus Thielemann, Hagen Trabandt
Life of this patent
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Abstract
A pneumatic tire, the tread of which is provided with zigzagged grooves. In order to keep rocks or similar solid foreign objects from getting stuck in the tread recesses, and in order to have these rocks drop out of the tread when the associated tire axis pivots, the side faces or the zigzagged grooves are stepped. Furthermore, the step faces, which extend approximately transverse to the circumferential direction of the tire, are disposed at an incline to a plane which extends through the main axis of the tire. Side faces which merge into one another via a given step face are parallel to one another, yet are staggered relative to one another by the width of this step face. The step faces are upwardly inclined at approximately 15.degree. to 25.degree..
Claims5
A tread configuration, for a pneumatic vehicle tire, comprising zigzagged circumferential grooves, each of which has a base and two opposite sides;
- each side is stepped in such a way as to form side faces, which essentially extend in the circumferential direction of said tire, and step faces, which essentially extend transverse to the circumferential direction of said tire;
- said side faces of a given side of one of said circumferential grooves are grouped into pairs, with said side faces of each of said pairs merging into one another via a given one of said step faces;
- said step faces are disposed at an angle to a radial plane defined as extending through the main axis of said tire, such that the step faces slope upwardly toward the tread surface, each two side faces of a given pair of side faces, which merge into one another;
- being staggered by the width of said one step face, with the width of the latter being that dimension thereof which extends substantially transverse to the circumferential direction of said tire.
Dependencies are inferred from the claim text.