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Tire bead structure

A bead and tire technology, applied to tire parts, bead, transportation and packaging, etc., can solve the problems of low friction, poor grip at the bottom of tire bead 33, strong strength, etc., to increase friction and improve The effect of grasping performance

Inactive Publication Date: 2016-11-16
CHENG SHIN RUBBER (XIAMEN) IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bead bottom 33' of the prior art tire is in smooth contact with the rim bead seat 4', the contact surface between the tire bead bottom 33' and the rim bead seat 4' is large, and the strength of the tire bead bottom 33' Too strong, the frictional force in contact with the rim bead seat 4' is small, and the grip of the bottom of the bead 33 of the tire is poor

Method used

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Examples

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Embodiment approach

[0032] like Figure 3 to Figure 11 As shown, the present invention discloses a tire bead structure, the X-axis is the tire axial direction, and the Y-axis is the tire radial direction. The tire includes a tread portion 1, two sidewall portions 2 and two bead portions 3, wherein each tire The outer edge of the bead in the lip 3 that cooperates with the rim bead seat 4 includes the bead toe 31 , the bead heel 32 and the bead bottom 33 , in order to improve the frictional force between the bead bottom 33 and the rim bead seat 4 , promote the grip performance of tire bead bottom 33, the key of the present invention is:

[0033] A plurality of concave-convex portions 5 are equally spaced around the entire circumference of the bead bottom 33 , and each concave-convex portion 5 consists of several convex portions 51 and concave portions 52 arranged at intervals in the axial direction.

[0034] Each convex portion 51 forms a trapezoidal convex portion that is wider at the top and nar...

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PUM

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Abstract

The invention discloses a tire bead structure. A tire comprises a tire tread portion, two tire side portions and two tire bead portions; the tire bead outer edge portion, matched with a rim tire ring base, of each tire bead portion comprises a tire bead toe portion, a tire bead heel portion and a tire bead bottom portion; at least two concave-convex portions are distributed on the whole circumference of each tire bead bottom portion at an equal interval; and each concave-convex portion is formed in the manner that a plurality of convex portions and concave portions are arranged at intervals in the axial direction. The tire bead structure can guarantee the rigidity of the tire bead portions and guarantee that the friction force between the rim tire ring bases is large enough, and the holding performance of the tire bead bottom portions is improved; and when the tire and a rim run under high load and high speed, the slippage and bead disengagement phenomena of the tire bead portions and the rim tire ring bases can be avoided.

Description

technical field [0001] The invention relates to a tire structure, in particular to a tire bead structure. Background technique [0002] In response to the continuous increase of vehicle types, the types of supporting tires are gradually developing from ordinary tires to radial tires, flat tires and tube-free tires. The performance requirements of flattened, flattened and tube-free tires are also getting higher and higher. Especially the safety performance of tires, one of which is the matching of tires and rims. [0003] Cooperate figure 1 , 2 As shown, the tire includes a tread portion 1', a sidewall portion 2' and a bead portion 3', wherein the outer edge of the bead portion where the bead portion 3' cooperates with the rim bead seat 4' includes a bead toe portion 31', The bead heel 32' and the bead bottom 33', in order to make the tire fit closely with the rim and improve the air retention performance of the tire, the current bead bottom 33' is designed as a smooth su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C15/024
CPCB60C15/024
Inventor 陈秀雄
Owner CHENG SHIN RUBBER (XIAMEN) IND LTD
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