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Tread for winter-use pneumatic tires

A technology for pneumatic tires and treads, which is applied in the direction of tire tread/tread pattern, tire parts, transportation and packaging, etc., which can solve the problem of reduced block stiffness, increased block deformation, and reduced tread pattern durability. and other problems, to achieve the effects of improving durability, suppressing thermal degradation, and improving heat dissipation characteristics

Active Publication Date: 2013-05-22
OCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the density of the sipe provided in the block is increased, the rigidity of the block decreases, and as a result, the amount of deformation of the block increases and the durability of the tread pattern decreases

Method used

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  • Tread for winter-use pneumatic tires
  • Tread for winter-use pneumatic tires
  • Tread for winter-use pneumatic tires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Preferred mode embodiments of the present invention will now be described with reference to the schematic drawings. First, the Figure 1 to Figure 3 A tread of a pneumatic tire for winter according to a first mode embodiment of the present invention is depicted. figure 1 is a diagram schematically illustrating a tread of a pneumatic tire for winter according to a first mode embodiment of the present invention, figure 2 is a diagram schematically illustrating blocks in a tread of a pneumatic tire for winter according to a first mode embodiment of the present invention, image 3 is along figure 2 An enlarged cross-sectional view of the tread of the winter tire when viewed on line III-III in FIG.

[0044] First, if figure 1 As shown, reference numeral 1 denotes a tread of a pneumatic tire for winter use according to a first mode embodiment. It should be noted that the size of the tire in this example is 205 / 55R16. In the tread 1 are formed three circumferential gro...

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PUM

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Abstract

Disclosed is a tread for winter-use pneumatic tires with improved performance on ice and improved tread pattern durability. The disclosed tread (1) for winter-use pneumatic tires has circumferentially arranged blocks (4) in which are formed: at least one narrow cut (5) extending roughly parallel to a circumferential edge (42) and having a widened area (51) at the bottom; and at least one series of small holes (6) opening at the ground-contact area (41) of the blocks (4) and comprising at least two small holes (7) which extend radially into the tire, wherein at least one series of small holes is formed in an area proximal to a circumferential edge, and is formed in the intermediary area between the circumferential edge and at least one narrow cut.

Description

technical field [0001] The present invention relates to a tread of a pneumatic winter tire, and more particularly, to a tread of a pneumatic winter tire having a plurality of blocks defined by circumferential grooves (grooves) and transverse grooves. Background technique [0002] A block pattern is mainly applied to the tread of a pneumatic tire for winter, and performance on snow is improved by gripping snow more tightly in a space between two adjacent blocks in the rotation direction of the tire. Furthermore, by providing the blocks with a plurality of so-called sipes extending in the tire width direction, performance on ice is improved by means of the so-called edge effect and the effect of removing the water film on the ice surface. [0003] As a method of further enhancing on-ice performance, there are known techniques in which the density of sipes provided in blocks is increased, and the edge effect and the effect of removing a water film on the ice surface are enhance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/12B60C11/00B60C11/04
CPCB60C2011/1213B60C11/00B60C2011/1254B60C11/0302B60C11/04B60C11/1281B60C11/12B60C11/032B60C11/0306B60C11/1236
Inventor 金子秀一
Owner OCIETE DE TECH MICHELIN