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Pneumatic tire and noise damper assembly

一种充气轮胎、减噪器的技术，应用在充气轮胎的增强层、轮胎零部件、胎等方向，能够解决轮胎模制缺陷、空气不能被充分排出等问题

Active Publication Date: 2009-12-30
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if all the vent grooves are eliminated from the bladder c, the air between the tire cavity ai and the bladder c cannot be sufficiently exhausted, thereby causing tire molding defects

Method used

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  • Pneumatic tire and noise damper assembly
  • Pneumatic tire and noise damper assembly
  • Pneumatic tire and noise damper assembly

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] In the drawings, a pneumatic tire and noise damper assembly 1 according to the present invention includes a pneumatic tire 2 having a toroidal body and a noise damper 3 attached to an inner surface 2 i of the pneumatic tire 2 .

[0026] The pneumatic tire 2 includes: a tread portion 2a; a pair of bead portions 2c each having a bead core 2d therein; and a pair of sidewall portions 2b extending between the tread portion 2a and the bead portion 2c. In this embodiment, the pneumatic tire 2 is shown as a tubeless tire for passenger cars, which has an inner surface 2i made of airtight rubber.

[0027] The pneumatic tire 2 further includes a carcass 4 and a belt 5 arranged radially outward of the carcass 4 in the tread portion 2 a.

[0028] The carcass 4 comprises at least one carcass ply 4A made of organic fiber cords, comprising a main body 4a extending...

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Abstract

A pneumatic tire and noise damper assembly comprises a pneumatic tire manufactured by vulcanization using an expandable bladder for molding an inner surface of the tire, the bladder with at least one vent groove extending on its outer surface, the inner surface of the tire being provided with at least one projecting stripe molded by the vent groove of the bladder, and a noise damper being attached to the inner surface of the tire and extending in the circumferential direction of the tire, wherein the projecting stripe comprises at least one first projecting stripe extending in an adhesion region to which the noise damper is attached, and the first projecting part has a height of from 0.2 to 1.0 mm, a width of from 0.4 to 1.6 mm and an virtual section area of from 0.08 to 1.00 mm 2 .

Description

technical field [0001] The present invention relates to a pneumatic tire and noise damper assembly comprising a pneumatic tire and a noise damper fixed to the inner surface of the tire and made of a porous material, in particular to a method for preventing molding defects of the tire from Components that degrade the adhesion of the noise absorber. Background technique [0002] In recent years, a pneumatic tire and noise absorber assembly including a pneumatic tire and a noise absorber attached to the inner surface of the tire and made of a porous material has been proposed. This component suppresses cavity resonance in the tire cavity, thereby reducing road noise. [0003] As shown in FIG. 9(A), when a pneumatic tire a is vulcanized and molded by a tire mold b, the inner surface ai of the tire a is compressed by a bladder c which is expanded by filling therein a heat medium such as steam. Thus, the outer surface ao of the tire a is strongly pushed against the tire mold b, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C19/00B60C9/18B29D30/58
CPCB60C19/002Y10T152/10495
Inventor 汤川直树中寺惠一
Owner SUMITOMO RUBBER IND LTD