Commercial light truck tire

Abstract

The invention discloses a commercial light truck tire. The tread of the tire is provided with three circumferential main grooves which are in a polygonal line shape. Four circumferential pattern blocks are formed between the three circumferential main grooves and the inner and outer shoulders of the tire in a dividing mode. A circumferential coherent Z-shaped steel piece penetrates through the middle of each circumferential pattern block. The circumferential pattern blocks and the circumferential coherent Z-shaped steel pieces are each provided with a plurality of sections of grains parallel to the circumferential direction of the tire. The circumferential main grooves and the circumferential coherent Z-shaped steel pieces are synchronous in a concave and convex mode in the axial direction of the tire. A plurality of transverse Z-shaped three-polygonal-line steel pieces are arranged between each circumferential coherent Z-shaped steel piece and the circumferential main grooves adjacent to the circumferential coherent Z-shaped steel piece. The circumferential pattern blocks of the whole tread also adopt unequal-pitch pattern blocks. Under the condition that road holding force of the tire is ensured, drainage performance is further improved, energy of the voice frequency peak is reduced, and therefore noise of the tire is lowered.

Description

technical field [0001] The invention relates to automobile tires, in particular to a commercial light-duty truck tire. Background technique [0002] Tires are a common and important part of a car. The pattern design of tires is related to the three important parameters of tire grip, water drainage, and quietness. These three are mutually restraining or even conflicting. [0003] Chinese invention patent specification CN104527331B discloses a special tire for pickup trucks containing fine steel sheets. Including 700 pieces of fine steel sheets evenly distributed around the circle, which divides the pattern block area into fine and small blocks, double "Y"-shaped bionic design, Y-shaped pattern blocks and reverse Y-shaped pattern blocks cooperate with each other, and also has corrugated pattern main grooves , and has a wide white edge with a circle width of 20mm. [0004] But even if this kind of special pickup tire with fine steel sheets is used, a section of the circumfere...

AI Technical Summary

Problems solved by technology

[0004] But even if this kind of special pickup tire with fine steel sheets is used, a section of the circumferential main groove is not parallel to the circumferential direction of the tire, and although the design of the Y-shaped pattern block increases the lateral grip, the rainwater in the circumferential main groove is also easy to accumulate. Accumulated in the short transverse ditch in the main ditch, the drainage performance is slightly poor

And there is no mention of unequal ratio multi-pitch design, the same pitch between each pitch, the same physical properties, easy to generate peak noise

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