Patent ID: 11945262
Assignee: CONTINENTAL REIFEN DEUTSCHLAND GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A vehicle tire comprising: a tread having a circumferential channel with a channel base and channel walls and having a tread depth; base elevations formed on the channel base as stone ejectors; the base elevations each comprise an upper part and a base part, the upper part having a top surface and the base part having a base surface; the base elevations having a maximum height at a top of the upper part of 25% to 60% of the tread depth in a radial direction, the top surface connects with the base surface at an encircling surface edge of the base elevation, the top surface having a plurality of planed surfaces that slope downwardly uniformly to the encircling surface edge to distribute forces from stones; the base surface connects with the encircling surface edge and is substantially vertical in the radial direction; the base elevations are at distances of greater than zero and up to 4.0 mm from the channel walls, wall sections of the channel walls adjacent to the base elevations have a downward slope and converge toward each other, and the wall sections have a concave curvature in plan view that opens toward the base elevations, the downward slope and the concave curvature of the wall sections being at least over a majority of a radial extent of the wall sections as viewed in cross-section of the circumferential channel; the encircling surface edge follows the concave curvature of the wall sections so that an axial width of the base elevations, as viewed in plan view, decreases toward circumferential ends of the base elevations corresponding to the concave curvature of the wall sections, and the base elevations are elongated to have a greater extent in the circumferential direction than in the axial direction; wherein the base elevations are elongated along a circumferential centerline of the channel, and the plurality of planed surfaces include a first plurality of planed surfaces on one side of the centerline, and a second plurality of planed surfaces on an opposite side of the centerline; and wherein the first plurality of planed surfaces and the second plurality of planed surfaces are angled obliquely relative to the circumferential centerline.