Tire

A tire and tire circumferential technology, applied to motorcycle tires, tire parts, reinforcement layers of pneumatic tires, etc., can solve the problems of not considering the contact surface of the crown belt, etc., achieve excellent turning performance, improve lightness, and improve uniformity sexual effect

Active Publication Date: 2019-09-20
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Document 1, the difference in the magnitude of the force of the contact surface that the band acts on during cornering is not considered, and there is room for improvement in cornering performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

[0025] figure 1 It is a tire meridian sectional view including a tire rotation axis (not shown) in a standard state of the tire 1 according to the present embodiment. The present invention can be used in various types of tires 1 such as non-pneumatic tires that are not filled with air, in addition to pneumatic tires for passenger cars, motorcycles, and heavy loads, for example. exist figure 1 In , a pneumatic tire for motorcycles is shown.

[0026] The "standard state" refers to a no-load state in which the tire 1 is assembled to a standard rim (not shown) and filled to a standard internal pressure. The dimensions and the like of each part of the tire 1 are values ​​measured in this standard state unless otherwise stated.

[0027] The "standard rim" refers to the rim specified by each tire in the standard system including the standard on which the tire 1 is based...

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Abstract

The present invention provides a tire that improves the cornering performance of the tire. A tire (1) comprises a tread reinforcing layer (7) comprising a cord-reinforced part (8) formed by winding a rubberized cord strip (9). The cord-reinforced part (8) includes a mesh part (13) that intersects with a space portion (19). The mesh part (13) has a first region (13A) on the tire equator (C) side, a second region (13B) on the tread end (TE) side and a third region (13C) therebetween. When the area of the space portion (19a) in the first region (13A) is A1, the area of the space portion (19b) in the second region (13B) is A2, and the area of the space portion (19c) in the third region (13C) is A3, the following formula (1) is satisfied: A1>A3>A2 ... (1).

Description

technical field [0001] The invention relates to tires with tread reinforcement. Background technique [0002] Patent Document 1 below describes a pneumatic tire including a cap band. The crown band is composed of a belt body having cords, and in the belt body, a first main part and a second main part intersect to form a grid, the first main part is inclined with respect to the circumferential direction, and the second main part is inclined relative to the circumferential direction. The main portion is inclined in a direction opposite to the first main portion. In such a cap band, the intersecting outer bands in the radial direction of the tire restrain the inner bands, thereby having high rigidity and generating large cornering power, thereby improving cornering performance. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2015-174569 [0004] Generally, when the vehicle is turning, the tire tread portion on the tread end side receives a larger contact surface fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/18B60C9/20B60C9/22
CPCB60C9/18B60C9/20B60C9/22B60C9/1807B60C9/2204B60C2009/2035B60C2009/2087B60C2200/10B60C9/1835B60C2009/1842
Inventor 疋田真浩河野恭介
Owner SUMITOMO RUBBER IND LTD
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