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Motorcycle tire

一种摩托车、轮胎的技术，应用在轮胎零部件、轮胎胎面/胎面花纹、车辆部件等方向，能够解决偏差增大、过渡特性变化、湿地性能降低等问题，达到过渡特性稳定、过渡特性平缓、直线稳定性提高的效果

Active Publication Date: 2016-10-05
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is room for improvement in the straight running stability of the motorcycle tire of Patent Document 1.
[0006] On the other hand, in the case where the outline of the outer surface of the tread portion is formed with a large radius of curvature, there is a concern that the wet performance may be lowered.
In addition, in the case of a tread portion with a large curvature radius, the deviation between the vertical direction of the outer surface of the tread portion and the vertical direction of the road surface increases when the camber angle is large.
Such a tire has a large camber angle, and there is a concern that the transition characteristics at the time of cornering will change rapidly.

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0028] figure 1 As a preferred embodiment of the present invention, a tire meridian sectional view showing a tire rotation axis in a regular state including a motorcycle tire (hereinafter, may be simply referred to as "tyre") 1 is shown. figure 2 It is a developed view showing the tread pattern of the tread portion 2 of the tire 1 . figure 1 Yes figure 2 A sectional view at line A-A of .

[0029] The "normal state" described above is a state in which the rim of the tire 1 is assembled into a normal rim (not shown), filled with normal internal pressure, and unloaded. In this specification, unless otherwise specified, the dimensions of each part of the tire 1 are values ​​measured in a normal state.

[0030] The above-mentioned "regular rim" is a rim that specifies the specification for each tire in the specification system including the specification on which the tire is...

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PUM

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Abstract

A motorcycle tire having straight driving stability and transition characters during turning is provided. A tread portion includes a central region and a pair of shoulder regions at two sides of the central region. The outer profile of the central region protrudes radially outwardly and has a first radius of curvature. The outer profile of each shoulder region protrudes radially outwardly and has a second radius of curvature smaller than the first radius of curvature. The tread portion is provided with a zigzag central main groove in the central region with zigzag corners, a plurality of shoulder lateral grooves each extending axially outwardly from each zigzag corner to one of the shoulder regions, and a plurality of shoulder sub groove each disposed between a pair of circumferentially adjacent shoulder lateral grooves and each extending axially outwardly from the central region to the shoulder region.

Description

technical field [0001] The present invention relates to a tire for motorcycles that has both straight running stability and transition characteristics when cornering. Background technique [0002] Conventionally, tires for motorcycles in which grooves are provided in a tread portion have been proposed. The grooves provided in the tread portion discharge water between the road surface and the tread portion to the outside of the tire during wet driving to improve wet performance, while changing the rigidity of the tread portion and affecting the handling performance. [0003] Patent Document 1 below proposes a motorcycle tire with improved groove arrangement. The motorcycle tire has a central main groove extending in a zigzag shape in a central region, a plurality of shoulder lateral grooves alternately extending from the central main groove, and shoulder subgrooves extending along the shoulder lateral grooves. Accordingly, the motorcycle tire of Patent Document 1 improves w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/01
Inventor 徐博志
Owner SUMITOMO RUBBER IND LTD
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