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tire

A tire and tire circumferential technology, applied in the direction of heavy tires, tire parts, tire tread/tread pattern, etc., to achieve the effects of small rigidity deviation, excessive deformation suppression, and high edge effect

Active Publication Date: 2022-03-01
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in terms of improving the performance on ice and snow, the tire of Patent Document 1 still has room for further improvement.

Method used

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Examples

Experimental program
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Embodiment Construction

[0040] Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0041] figure 1 It is a developed view showing a tread portion 2 of a tire 1 according to an embodiment of the present invention. For example, the tire 1 of the present invention can be used in various types of tires, such as pneumatic tires for passenger cars or heavy loads, and non-pneumatic tires in which pressurized air is not filled inside the tires. For example, the tire 1 of the present embodiment is a pneumatic tire and is suitably used as a heavy-duty winter tire.

[0042] Such as figure 1 As shown, the tread portion 2 is provided with a shoulder main groove 4 that extends continuously in the tire circumferential direction on the tread edge Te side and a tire that continuously extends in the tire circumferential direction on the tire equator C side of the shoulder main groove 4 . Crown main groove 3. The shoulder main grooves 4 and the crown main grooves 3 extend...

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PUM

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Abstract

The invention provides a tire with excellent performance on ice and snow, a tire with a tread portion (2), on which two main grooves (3) extending continuously in the tire circumferential direction and divided into The land portion (10) between the two main grooves (3). The two main grooves (3) are saw-toothed with mutually aligned phases. The land portion (10) is provided with a longitudinal sipe (15) which is in phase opposite to the two main grooves (3) and extends in a zigzag shape in the tire circumferential direction.

Description

technical field [0001] The present invention relates to a tire with excellent performance on ice and snow. Background technique [0002] For example, Patent Document 1 below proposes a tire having a land portion divided by main grooves extending linearly and main grooves extending zigzag. The land portion of the tire disclosed in Patent Document 1 is provided with linearly extending thin grooves or vertical sipes. [0003] However, in terms of improving performance on ice and snow, the tire of Patent Document 1 still has room for further improvement. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2005-280457 Contents of the invention [0005] The present invention is proposed in view of the above problems, and its main purpose is to provide a tire with excellent performance on ice and snow. [0006] One aspect of the present invention is a tire having a tread portion, characterized in that, [0007] The tread portion is provided with two main grooves extendi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C11/12
CPCB60C11/1236B60C11/0306B60C2011/036B60C2011/0362B60C2011/0346B60C2011/1213B60C2011/0358B60C11/1281B60C2011/0383B60C2011/0381B60C11/0309B60C2200/06
Inventor 木谷尚史
Owner SUMITOMO RUBBER IND LTD