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Pneumatic tire

A pneumatic tire, tire technology, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., to achieve superior wet performance, prevent rigidity from being reduced, and superior ride comfort.

Active Publication Date: 2017-09-12
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned pneumatic tires have room for further improvement in ride comfort.

Method used

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  • Pneumatic tire
  • Pneumatic tire
  • Pneumatic tire

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0032] figure 1 It is a development view of the tread part 2 of the pneumatic tire 1 of this embodiment. The pneumatic tire 1 of the present embodiment is preferably implemented, for example, for passenger cars.

[0033] The tread portion 2 of the present embodiment has a tread pattern in which the direction of mounting on a vehicle is specified. The orientation to be attached to the vehicle is indicated on the sidewall portion, for example, by characters or symbols (illustration omitted).

[0034] Such as figure 1 As shown, the tread portion 2 has an outer tread end Teo positioned outside the vehicle when mounted on the vehicle, and an inner tread end Tei positioned inside the vehicle when mounted on the vehicle.

[0035] The outer tread end Teo and the inner tread end Tei are respectively defined as the tire axially outermost ground contact positions when a normal load ...

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Abstract

A pneumatic tire comprises a tread portion 2 having an outside tread edge Teo and an inside tread edge Tei to be positioned outside and inside, respectively, with respect to a vehicle. The tread portion 2 is axially divided into land regions 4 by four main grooves 3 including an outside shoulder main groove 5, an inside shoulder main groove 6 and two crown main grooves 7. The outside shoulder main groove 5 has a width smaller than the inside shoulder main groove 6 and the crown main grooves 7. The land portions 4 include an inside shoulder land region 10 provided with inside shoulder lateral grooves 17. Each of the land regions 4 is provided with sipes 20 each extending across the entire width of the land region and having a width less than 3 mm.

Description

technical field [0001] The present invention relates to a pneumatic tire capable of improving wet performance, steering stability, and riding comfort in a balanced manner. Background technique [0002] For example, Patent Document 1 below proposes a pneumatic tire having a tread portion mounted on a vehicle with a designated orientation. In the pneumatic tire of Patent Document 1, the inner shoulder land portion positioned on the inner side of the vehicle when mounted on the vehicle has lug grooves extending from the tread end toward the inner side in the tire axial direction and terminating in the inner shoulder land portion. The aforementioned lug grooves can prevent a decrease in the rigidity of the inner shoulder land portion and improve drainage. [0003] However, the above-mentioned pneumatic tires have room for further improvement in riding comfort. [0004] Patent Document 1: Japanese Unexamined Patent Publication No. 2013-224132 Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): B60C11/03B60C11/12
CPCB60C11/0304B60C11/0323B60C11/1204B60C11/1236B60C2011/1227B60C11/0306B60C11/1263B60C2011/0353B60C2011/0365B60C2011/0369B60C2011/1209B60C11/124
Inventor 早苗隆平
Owner SUMITOMO RUBBER IND LTD
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