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Tire for two-wheeled vehicle and manufacturing method of the same

A two-wheeled vehicle and tire technology, applied in motorcycle tires, tire parts, tire treads/tread patterns, etc., can solve the problems of time-consuming, large tread rubber thickness, and productivity damage, and prevent wrinkling. , Improve uniformity and ensure the effect of productivity

Active Publication Date: 2006-09-20
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large thickness of the tread rubber, it exhibits a disadvantage in that it takes time for winding, thereby impairing productivity

Method used

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  • Tire for two-wheeled vehicle and manufacturing method of the same
  • Tire for two-wheeled vehicle and manufacturing method of the same
  • Tire for two-wheeled vehicle and manufacturing method of the same

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the invention will now be described with reference to the illustrated embodiments.

[0028] Such as figure 1 and 2 As shown, a tread surface 2S of a tire 1 for a two-wheeled vehicle includes a tread portion 2 extending from a tire equator line C toward a tread end Te while being curved in a convex arc shape. Since the tread width TW (which corresponds to the tire axial distance between the tread ends Te and Te) contains the maximum tire width, cornering movements can be performed at large lean angles. This embodiment shows a preferred embodiment in which the curvature value h1 / L1 of the tread surface 2S, that is, the tire axial width L1 (=0.5 The ratio h1 / L1 of TW) to the tire radial height h1 is limited to 0.3 to 0.7.

[0029] The tire 1 for a two-wheeled vehicle further includes: a carcass 6 extending from the tread portion 2 through the sidewall portion 3 to the bead core 5 of the bead portion 4; and a belt layer 7 provided on the tread portion 2 a...

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Abstract

The tire for a two-wheeled vehicle comprises at a tread portion thereof shoulder rubber portions on tread end sides and a central rubber portion between the shoulder rubber portions. The central rubber portion is comprised of a once-wound body in which a wide flat rubber material has been wound once in the tire circumferential direction. The shoulder rubber portions are comprised of strip wound bodies in which a narrow and long rubber strip is spirally wound in the tire circumferential direction.

Description

technical field [0001] The present invention relates to a tire for two-wheeled vehicles and a method of manufacturing such a tire in which a tape winding method is applied to a shoulder portion of tread rubber. Background technique [0002] In a tire for a two-wheeled vehicle, the tread portion is formed into a convex arc-like profile with a small radius of curvature in consideration of the characteristics of making a turning motion when the vehicle body is tilted to a large degree. As shown in FIG. 10(A), in order to form the tread portion (a) of such a tire, a profile table (b) (former) having a shape corresponding to the shape of the convex arc profile is used, so that The belt ply (c) and the tread rubber (d) are sequentially stacked along the outer peripheral surface thereof. [0003] At this time, the tread rubber (d) is formed by: using a wide and flat rubber material (d1) extruded by a rubber extruder; a cylindrical shape; and, while being pressed against the conto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/00B29D30/30
CPCB60C11/00B29D30/1628B60C11/0058B60C2200/10B29D30/60
Inventor 田中尚
Owner SUMITOMO RUBBER IND LTD
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