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US 2025/0115080 A1Published application
Pneumatic vehicle tyre
AssigneeContinental Reifen Deutschland GmbH
InventorsHolger Gastrich, Andrej Proksa
Life of this patent
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Abstract
A pneumatic vehicle tire with sidewalls and a tread with at least one shoulder-side profile rib delimited by a circumferential groove with a rib outer surface and a shoulder flank extending to the respective sidewall. The shoulder-side profile rib is provided with depressions, which proceed from the shoulder flank and have an opening on the rib outer surface. The opening of the depression when viewed from above, is elongate-rectangular in the axial direction or elongate-trapezoidal in the axial direction.
Claims16
A pneumatic vehicle tire comprising:
- sidewalls and a tread with at least one shoulder-side profile rib delimited by a circumferential groove with a rib outer surface and a shoulder flank extending to the respective sidewall;
- wherein the shoulder-side profile rib is provided with depressions, which proceed from the shoulder flank and have an opening on the rib outer surface:
- wherein the opening is delimited on an inner side of a tread by a first delimiting edge lying completely within the shoulder-side profile rib, and in the circumferential direction by two second delimiting edges, and wherein the opening between the second delimiting edges in the circumferential direction has a width (b1) with a maximum value of 10.0 mm to 30.0 mm;
- wherein the opening of the depression, when viewed from above, is elongate-rectangular in the axial direction or elongate-trapezoidal in the axial direction;
- wherein the depression has an end flank, proceeding from the first delimiting edge, and a base;
- wherein the end flank, when viewed from above in the cross section running perpendicular to the first delimiting edge, runs at an angle (ε) of 8° to 20° in relation to the radial direction, and wherein the base, when viewed from above in the cross section aligned perpendicularly to the first delimiting edge, consists of an inner base portion running at a constant depth (tmin), an outer base portion extending at an angle (θ) of 30° to 60° in relation to the radial direction, and a middle base portion which is outwardly convex in an arcuate manner and tangentially adjoins these base portions.
3 more elements
A pneumatic vehicle tire comprising:
- sidewalls and a tread with at least one shoulder-side profile rib delimited by a circumferential groove with a rib outer surface and a shoulder flank extending to the respective sidewall;
- wherein the shoulder-side profile rib is provided with depressions, which proceed from the shoulder flank and have an opening on the rib outer surface:
- wherein the opening is delimited on an inner side of a tread by a first delimiting edge lying completely within the shoulder-side profile rib, and in the circumferential direction by two second delimiting edges, and wherein the opening between the second delimiting edges in the circumferential direction has a width(b1) with a maximum value of 10.0 mm to 30.0 mm;
- wherein the opening of the depression, when viewed from above, is elongate-rectangular in the axial direction or elongate-trapezoidal in the axial direction;
- wherein the depression has an end flank, proceeding from the first delimiting edge, and a base;
- wherein the end flank, when viewed from above in the cross section running perpendicular to the first delimiting edge, runs at an angle (ε) of 8° to 20° in relation to the radial direction, and wherein the base, when viewed from above in the cross section aligned perpendicularly to the first delimiting edge, consists of an inner base portion running at a constant depth (tmin), an outer base portion extending at an angle (θ) of 30° to 60° in relation to the radial direction, and a middle base portion which is outwardly convex in an arcuate manner and tangentially adjoins these base portions;
- wherein the width (b1) of the opening of the depression decreases continuously in the direction of the inner side of the tread, so that the width (b1) has its maximum value (b1max) at the tread outer ends of the second delimiting edges and its minimum value (b1min) at the tread inner ends of the second delimiting edges;
- wherein the minimum value (b1min) of the width (b1) is 40% to 60%;
- and
- the circumferential groove, when viewed from above, runs in a zigzag shape and is composed of groove portions which run in each case at an angle (α) of 15° to 30°, in particular of 20° to 25°, in relation to the circumferential direction, wherein the shoulder-side circumferential groove at the groove portions has in each case a bending point with a bend inner side and a bend outer side, wherein the depressions are in each case located so as to be axially beside a bend inner side.
7 more elements
Dependencies are inferred from the claim text.