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Inflation tire and its producing method

一种充气轮胎、胎圈部的技术，应用在充气轮胎、特殊轮胎、轮胎零部件等方向，能够解决轮胎耐久性下降、龟裂、轮胎生产性降低等问题，达到耐久性优异、提高生产性的效果

Inactive Publication Date: 2007-11-14
THE YOKOHAMA RUBBER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when a member for changing the cross-sectional shape of the closed space is attached to the tire inner surface of the bead portion, cracks are likely to occur from the end of the member, so there is a problem that the durability of the tire is reduced.
Furthermore, if the method of attaching the above-mentioned components to the inner surface of the tire of the bead portion is used, there is also a disadvantage that the productivity of the tire is significantly reduced.

Method used

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  • Inflation tire and its producing method
  • Inflation tire and its producing method
  • Inflation tire and its producing method

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Embodiment Construction

[0014] Hereinafter, the configuration of the present invention will be described in detail with reference to the drawings.

[0015] FIG. 1 shows a pneumatic tire according to an embodiment of the present invention, and FIG. 2 schematically shows an amount adjusting member arranged in a bead portion of the pneumatic tire from the side of the tire. As shown in FIG. 1 , a pneumatic tire 10 is composed of a tread portion 1 , sidewall portions 2 , and bead portions 3 . A skeleton layer 4 is spanned between the pair of left and right bead portions 3 , 3 , and an inner liner 5 is provided inside the skeleton layer 4 . End portions in the width direction of the skeleton layer 4 are rolled up from the inner side of the tire toward the outer side along the periphery of the bead core portion 6 at each bead portion 3 . In addition, a belt layer 7 is buried on the outer peripheral side of the skeleton layer 4 of the tread portion 1 . A pneumatic tire 10 is mounted on a rim (rim) R of a w...

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Abstract

Disclosed are a pneumatic tire which enables improvement of durability when air column resonance sound is reduced by adding a member to a bead portion to change a sectional shape of a closed space in a tire circumferential direction, and a pneumatic tire manufacturing method which enables improvement of productivity. In the pneumatic tire in which a carcass layer is arranged between a pair of left and right bead portions and an inner liner layer is provided on an inner side of the carcass layer, volume adjusting members are intermittently arranged between the carcass layer and the inner layer in the bead portions in a tire circumferential direction so as to change a sectional shape of a closed space formed between the tire and a wheel in the tire circumferential direction.

Description

technical field [0001] The present invention relates to a pneumatic tire capable of changing the cross-sectional shape of a closed space formed between the tire and a wheel in the tire circumferential direction and a method for manufacturing the same, and more specifically, to a pneumatic tire capable of canceling the change of the cross-sectional shape of the closed space in the tire circumferential direction Pneumatic tires and methods of manufacturing the same. Background technique [0002] Generally, as a countermeasure against noise caused by air column resonance of automobile tires, it is proposed to shorten the resonance time of a single frequency by changing the cross-sectional shape of the closed space formed between the tire and the wheel along the tire circumferential direction, thereby reducing the Noise due to the air column resonance is proposed (for example, JP-A-2001-113902). In particular, when an appropriate component is installed on the inner surface of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/48B60C15/024B60C5/00B29D30/00B29D30/30B60C3/00B60C19/00
CPCB60C3/00B60C19/00B29D30/0681B29D2030/0682B60C19/002B60C15/024Y10T152/10495Y10T152/10819
Inventor 冢田修一山内裕司秋好靖二
Owner THE YOKOHAMA RUBBER CO LTD
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