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Modifiable element for shaping a raw tyre blank

A technology for blanks and components, applied in tires, household appliances, other household appliances, etc., can solve the problems of time-consuming and expensive components, and achieve the effect of easy adjustment

Active Publication Date: 2011-11-16
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Currently, it is time consuming to change parts to build different types of tires with different geometries
Furthermore, these components are relatively expensive

Method used

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  • Modifiable element for shaping a raw tyre blank
  • Modifiable element for shaping a raw tyre blank
  • Modifiable element for shaping a raw tyre blank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 An apparatus according to the invention is described, indicated generally at 10 .

[0031] The apparatus 10 allows shaping a green tire body. The general shape of such a blank (not shown) exhibits rotational symmetry about the main axis of the blank. The general shape of the device 10 exhibits rotational symmetry about the main axis X of the blank. Once the blank has been positioned on the device 10, the main axis X of the device 10 more or less coincides with the main axis of the blank.

[0032] The apparatus 10 comprises a plurality of elements 12 for shaping a circumferential portion of a green tire blank. In this particular example, figure 1 The device 10 depicted in includes twenty-four components 12 distributed circumferentially with respect to the main axis X.

[0033] Since all parts 12 are identical, we will now refer to Figure 2 to Figure 6 Only one component 12 is described.

[0034] The part 12 comprises a frame 14 forming a support for posi...

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PUM

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Abstract

The invention relates to an element (12) for shaping the circumferential portion of a raw tyre blank that is substantially rotationally symmetrical about a main axis (X), including a radial bearing surface (16) for bearing on a circumferential portion of a radially inner surface of the blank. The element (12) is arranged so that the radial profile of the bearing surface (16) is modifiable.

Description

technical field [0001] The present invention relates to the technical field of tires. Background technique [0002] Hereinafter, the axis of rotation of the green tire body will be referred to as its axis. This axis defines the axial direction of the blank and, when taking into account the positioning of the blank on the equipment, also defines the axial direction of the equipment which shapes the blank. [0003] The green tire blank, or green tire, generally consists of a carcass on which the crown assembly for forming the tread is positioned. The carcass and crown components consist of unvulcanized rubber moldings, some of which contain reinforcing threads. [0004] When said blank was vulcanized in the mould, a change in the relative positioning of the carcass and crown components was observed. The final relative positions of the carcass and crown components are dictated by the mould, and are therefore known. The change in relative positioning changes certain geometri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/24
CPCB29D30/242
Inventor A·利普萨
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN