Vehicle Pneumatic Tires

Abstract

Pneumatic vehicle tire of radial construction having a tread with two rows of shoulder blocks (1, 1') and a central tread with at least one row of blocks (5) area, the row of blocks is bounded on both sides by circumferential grooves (6, 7), wherein the row of blocks (5) belongs to a circumferential area which is divided into 50 to 65 segments and according to a The method of changing the length of the segments is optimized in terms of noise, wherein the blocks (5a) of the block row (5) are respectively passed in the circumferential direction and at the periphery of the tread by two parallel to each other and facing each other in plan view A tread block edge (5') extending at an angle (α) of 5° to 30° in the axial direction is defined and provided with at least three incisions (9, 10) respectively, the incisions having a diameter of 0.3 mm to 0.8 mm , extending across the blocks (5a) and substantially parallel to the block edges (5') in plan view. In each case an incision (9) extends in the central region of the tread blocks (5a), which incision has an in particular constant depth of 70% to 100% of the tread depth over its entire extension, wherein the other incisions The inlets (10) each have a central section with a depth of 70% to 100% of the tread depth and two side sections (10b) opening into the circumferential grooves (6) , the depth of the side sections is at most 60% of the tread depth.

Description

technical field [0001] The invention relates to a pneumatic vehicle tire of radial construction having a tread with two rows of shoulder blocks and at least one row of blocks extending in the central tread region, the tire The block row is bounded on both sides by circumferential grooves, wherein the block row belongs to a circumferential area which is divided into 50 to 65 segments (Pitches) and according to a method of changing the length of the pitches in the noise The aspect is optimized in which the blocks of the block row are each delimited in the circumferential direction by two block edges parallel to one another and extending at an angle of 5° to 30° relative to the axial direction in plan view and In each case at least three incisions are provided, which have a width of 0.3 mm to 0.8 mm, traverse the blocks and extend substantially parallel to the block edges in plan view. Background technique [0002] Pneumatic vehicle tires of the type mentioned at the outset ar...

AI Technical Summary

Problems solved by technology

A tread pattern with a large number of segments is therefore better for less interior noise, but a large number of segments also leads to a relatively short circumferential length of the tread blocks, ie a situation that causes tread Lower strength of blocks and thus reduced force transmission (especially on dry roads)

Images