Pneumatic tire tread
AssigneeThe Goodyear Tire & Rubber Company
InventorsGia Van Nguyen, Joël André Ghislain Delogne, Anne-France Gabrielle Jeanne-Marie Cambron, Frank Severens, Jean Joseph Collette
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Abstract
A pneumatic tire tread has tread elements formed by circumferential and/or lateral grooves. At least one tread element has a sipe that devolves from a constant width sipe having a three dimensional aspect in at least a portion of the radially outer portion of the sipe to a wider width groove at the base of the tread feature.
Claims12
1-26. (canceled)
A blade for molding a tire, the blade comprising a body with a longitudinal axis, the body comprising an inner portion and an outer portion, wherein the inner portion is substantially straight in the longitudinal direction, and the outer portion is undulating in the longitudinal direction.
A blade for molding a tire, wherein the blade has an outer portion, an inner portion and an intermediate portion located therebetween, wherein the intermediate portion has an increasing width transitioning from a width Wo to a width Wi, and wherein the blade has a length L which extends in the longitudinal direction, the outer portion having a width Wo and the inner portion has a width Wi, wherein the inner portion extends outward from a base portion with straight sidewalls having a defined depth D, wherein Wi is greater than Wo, wherein the outer portion and the intermediate portion has a undulating profile in the longitudinal direction along the entire length L, and the inner portion is straight along the longitudinal direction along the entire length L.
Dependencies are inferred from the claim text.