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Tire manufacturing method for improving the uniformity of a tire

A uniformity and tire technology, applied in tires, household appliances, other household appliances, etc., can solve problems such as severe vehicle vibration

Inactive Publication Date: 2015-07-01
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, the vehicle vibrations caused by the tires may be worse than without optimization

Method used

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  • Tire manufacturing method for improving the uniformity of a tire
  • Tire manufacturing method for improving the uniformity of a tire
  • Tire manufacturing method for improving the uniformity of a tire

Examples

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Embodiment Construction

[0024] The following will refer to the typical mode of the present invention in detail, and the typical mode is one or more of the modes shown in the picture. Each example described is an explanation of the present invention, but it does not mean that the present invention is limited to this. Throughout the specification, features illustrated or described in a certain section of the introduction may be used in other descriptions. All or partly explained common features are indicated by similar reference numerals in the pictures.

[0025] Modern pneumatic tires are usually carefully manufactured and have high accuracy. The goal of the tire designer is to make the tire manufactured without non-uniformity in the circumferential and tangential directions. However, although the designer's intention is good, since the tire production process contains many steps, these steps may cause various non-uniformities. One obvious non-uniformity is that the tire may not be absolutely round (r...

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Abstract

A tire manufacturing method includes a method for optimizing the uniformity of a tire by reducing the green tire radial runout. The green tire radial runout is modeled as a vector sum of each of the vectors representing contributions arising from the tire building steps. A set of vector coefficients is generated from the vector equation. The building steps include building the tire carcass, building the tire summit, transferring the summit onto the inflate carcass, and measuring the radial runout and tooling angles at each step in the process. After the model is built the vector equations and coefficients are applied to subsequent tires. By adjusting the tooling angles, green tire radial runout can be optimized.

Description

[0001] Priority statement [0002] This application is a partial follow-up to the previously filed PCT application "Tire Manufacturing Method For Improving The Uniformity Of A Tire". This application number is PCT / US2004 / 039321, in 2004 Submitted on November 19. Background technique [0003] The present invention relates to a method for manufacturing tires, and more specifically, to improve tire uniformity by reducing the radial runout of an (unvulcanized) tire blank. For a tire, more precisely, a radial tire, the radial runout (RRO) of the green tire is affected by many variables introduced during the assembly process of the green tire. When the radial runout of the tire exceeds the acceptable range, harmful vibration may occur, which may affect the driving and operation of the vehicle. For these reasons, tire manufacturers strive to control tire radial runout to the lowest level. [0004] A well-known and commonly used method to reduce radial runout is to sand the tire tread in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/06
CPCB29D30/0633B29D2030/0635
Inventor W·D·莫拜E·M·佩尔斯因J·M·特雷勒
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN