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Tire

A tire and shoulder technology, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., can solve the problem of low cornering performance, and achieve the effect of improving cornering performance and snow performance.

Active Publication Date: 2018-01-05
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When running on snow with such a groove structure, the snow column generated by the second groove and the main groove tends to be small, and the turning performance on snow tends to be low.

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] One embodiment of the present invention will be described below based on the drawings.

[0028] figure 1 It is a development view of the tread part 2 of the tire which concerns on one Embodiment of this invention. The tire 1 of the present embodiment can be used in various 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. The tire 1 of the present embodiment is preferably applied to a pneumatic tire for passenger vehicles.

[0029] Such as figure 1 As shown, the tread portion 2 includes an asymmetrical tread pattern specifying a direction of installation to a vehicle. The tread portion 2 includes an outer tread end To located outside the vehicle when the tire 1 is installed on a vehicle, and an inner tread end Ti located inside the vehicle when the tire 1 is installed on the vehicle. The direction of installation to the vehicle is indicated by letters or symbols, for exa...

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Abstract

Provided is a tire. The aim of the invention is to maintain the operation stability of the tire on a dry pavement and to improve the performance of the tire in a snow environment. A tread portion (2)includes an outboard tread end (To) on the outer side of a vehicle when the vehicle with the tire is mounted and an inboard tread end (Ti) on the inner side of the vehicle when the vehicle is mounted.The tread portion (2) is provided with an outboard shoulder main groove (3), an outboard crown main groove (4) and an outboard middle land (10). The outboard middle land (10) is provided with first outboard middle lug grooves extending from the outboard crown main groove (4) and terminating within the outboard middle land (10), and second outboard middle lug grooves (17) extending from the outboard shoulder main groove (3) and terminating within the outboard middle land (10). The second outboard middle lug grooves (17) are larger than the first outboard middle lug grooves (16) in length in atire axial direction.

Description

technical field [0001] The present invention relates to a tire that maintains handling stability on dry road surfaces and improves performance on snow. Background technique [0002] For example, Patent Document 1 below proposes a tire in which an outer middle land portion divided between a pair of main grooves is provided with a The first lug groove is connected to the main groove on the inner side in the tire axial direction, and the second lug groove is connected to the main groove on the outer side in the tire axial direction. [0003] However, in the tire of Patent Document 1, the first lug groove and the second lug groove have substantially the same length. When running on snow with such a groove structure, the snow column generated by the second groove and the main groove tends to be small, and the turning performance on snow tends to be low. [0004] [Prior Art Literature] [0005] 【Patent Literature】 [0006] [Patent Document 1] Japanese Unexamined Patent Publica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/13B60C11/12
CPCB60C11/0311B60C11/0306B60C11/0304B60C2011/0388B60C2011/0341B60C11/11B60C11/12B60C2011/0381B60C2011/039B60C11/04B60C2011/0369B60C11/0302B60C11/1204B60C11/1236
Inventor 向井友幸永原直哉信国真吾大泽容希
Owner SUMITOMO RUBBER IND LTD
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