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tire

A tire and tire circumferential technology, applied to tire parts, tire tread/tread pattern, vehicle parts, etc., can solve the problems of loud pumping sound, etc., to maintain rigidity, reduce pumping sound, and superior ice and snow performance and the effect of noise performance on

Active Publication Date: 2022-07-22
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in order to improve the traction performance of the tire on snowy roads, there is a tendency to set the width of the lateral groove in the tread portion of the tire to be relatively large.
On the other hand, such tires tend to produce a large pumping sound generated by lateral grooves when running on a dry road.

Method used

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Embodiment Construction

[0034] Hereinafter, one Embodiment of this invention is described based on drawing.

[0035] figure 1 A development view of the tread portion 2 of the tire 1 of the present embodiment is shown. The tire 1 of the present embodiment is suitable for use, for example, as a pneumatic tire for a four-wheel drive vehicle such as an SUV that can travel not only on paved roads but also on uneven ground. However, the tire of the present invention is not limited to such an aspect. In another aspect of the present invention, the tire 1 can be used, for example, as a heavy duty tire, a non-pneumatic tire in which the interior of the tire is not filled with pressurized air, or the like.

[0036] like figure 1 As shown, the tread portion 2 is provided with, for example, at least a shoulder main groove 3 and a crown main groove 4 extending continuously in the tire circumferential direction. The shoulder main groove 3 is arranged, for example, on the side closest to the tread end Te. The ...

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Abstract

The present invention provides a tire capable of exhibiting excellent performance on ice and snow and noise performance on dry road surfaces. The tire has a tread portion (2). The tread portion (2) includes a plurality of lateral grooves (8) extending in the tire axial direction and blocks (9) divided by the lateral grooves (8). The block (9) includes a first lug block wall (16) on the side of one lateral groove (8), a first lateral sipe (23) and a first lateral sipe (23) and a second lateral sipe (23) adjacent to each other in the tire axial direction with a gap (25) interposed therebetween. A sipe pair (22) is formed by two transverse sipes (24). The first lug block wall (16) has a convex portion (20) that locally protrudes toward the lateral groove (8) side at the center portion in the tire axial direction. The gap (25) is arranged in the projection area (26) of the projection formed by extending the projection (20) along the tire circumferential direction.

Description

technical field [0001] The present invention relates to a tire capable of exhibiting excellent performance on ice and snow and noise performance on dry road surfaces. Background technique [0002] Conventionally, various tires suitable for running on icy and snowy roads have been proposed (for example, refer to the following Patent Document 1). [0003] However, in order to improve the traction performance of the tire on snowy roads, there is a tendency to set the width of the lateral groove of the tread portion of the tire to be relatively large. On the other hand, such tires tend to generate large pumping noises generated by the lateral grooves when running on dry roads. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2016-088219 SUMMARY OF THE INVENTION [0005] The present invention has been made in view of the above circumstances, and its main object is to provide a tire capable of exhibiting excellent performance on ice and snow and noise performance on d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C11/03B60C11/12
CPCB60C11/03B60C11/12B60C2011/0365B60C11/11B60C11/0306B60C2011/1254B60C2011/0346B60C2011/0358B60C2011/1213B60C11/1204B60C11/0304B60C11/0311
Inventor 中野和宏
Owner SUMITOMO RUBBER IND LTD
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