Pneumatic tire

A technology for pneumatic tires and tires, which is applied to off-road vehicle tires, tire parts, tire treads/tread patterns, etc., can solve the problems of low driving performance, low performance noise performance, etc., to improve driving performance and increase the width direction. Effects of ingredients

Active Publication Date: 2020-08-25
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the former tends to have lower driving performance on unpaved roads than the latter, and the latter tends to have lower performance during normal driving (for example, noise performance, etc.) than the former.

Method used

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  • Pneumatic tire
  • Pneumatic tire
  • Pneumatic tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] The tire size is LT265 / 70R17 121Q, with figure 1 The illustrated basic configuration and the figure 2 The tread pattern is the keynote and will be the continuous existence of the transverse groove group, the shape of the first to third groove elements, the type of the transverse groove group, the presence or absence of the intersection of the transverse groove group, the presence or absence of the side block pair, The presence or absence of shoulder block pairs was set as in Table 1 for the 11 pneumatic tires of Comparative Examples 1 to 4 and Examples 1 to 7, respectively.

[0048] Regarding the presence or absence of continuity of the transverse groove group, describe the first groove element and the second groove element on one side in the "First / Second (one side)" column of "Continuity of the transverse groove group" in Table 1 Whether it is continuous or discontinuous, in the "second / third (one side)" column of "continuity of transverse groove group" in Table 1, ...

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Abstract

Provided is a pneumatic tire in which travel performance on unpaved roads is efficiently increased. In this pneumatic tire: a center block 23 and shoulder blocks 22 are provided in a tread section 1;side blocks 21 are provided in sidewall sections 2; and groove elements 31, 32, 33 comprising narrow grooves and / or sipes are provided in the surfaces of each of the blocks. A series of transverse groove groups 30 are configured from first groove elements 31 provided in the side blocks 21, second groove elements 32 provided in the shoulder blocks 22, and third groove elements 33 provided in the center block 23, the series of transverse groove groups 30 extending continuously along the blocks from the side block 21 on one side in the tire width direction to the side block 21 on the other side,spanning main grooves 11 or auxiliary grooves 13.

Description

technical field [0001] The present invention relates to a pneumatic tire suitable as a tire for running on unpaved roads, and more specifically, to a pneumatic tire which efficiently improves running performance on unpaved roads. Background technique [0002] Pneumatic tires intended to run on unpaved roads such as uneven ground, muddy ground, snowy roads, sandy ground, rocky ground, etc., generally adopt a tread pattern mainly composed of horizontal grooves and blocks with many edge components and having a large groove area. In such tires, mud, snow, sand, stones, rocks, etc. (hereinafter, collectively referred to as "mud, etc.") on the road surface are bitten to obtain traction performance, and mud, etc. Driving performance on unpaved roads. In particular, it has been proposed to improve running performance on unpaved roads by providing blocks also in the sidewall region on the outer side in the tire width direction than the shoulder region of the tread portion (on the ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/12B60C11/01B60C11/03B60C11/13B60C11/16
CPCB60C11/12B60C2200/14B60C11/0306B60C2011/0346B60C2011/0381B60C2011/0358B60C2011/0362B60C11/1236B60C2011/036Y02T10/86B60C11/01B60C11/1204B60C11/1625B60C2011/1213B60C11/11B60C2011/013B60C11/0304
Inventor 坂本洋佑
Owner THE YOKOHAMA RUBBER CO LTD
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