Drum and method for assembling a tyre adapter on a wheel rim

A technology for building drums, joints, applied in the field of building drums and for assembling tire joints on rims

Active Publication Date: 2018-08-03
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This building drum does not allow to form a blank of a tire joint comprising two bead wires of different diameters

Method used

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  • Drum and method for assembling a tyre adapter on a wheel rim
  • Drum and method for assembling a tyre adapter on a wheel rim
  • Drum and method for assembling a tyre adapter on a wheel rim

Examples

Experimental program
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Effect test

Embodiment Construction

[0047] figure 1 The joint 1' is shown taken along a plane passing through the axis of symmetry Z-Z' of the joint 1'. Said joint 1' is intended to be mounted between a rim and a tire (neither shown) to form a tire assembly as described in document WO 00 / 78565 in the name of the inventor's company. For this purpose, the joint 1 ′ comprises a joint bead 2 ′ intended for fastening to the rim and a joint reinforcement 3 ′ which attaches the bead 2 'Connected to the joint reinforcement 4' which can be fixed around the bead of the tire. The joint 1' is a member having a circular overall shape and is rotationally symmetrical about the axis Z-Z'.

[0048] The reinforcement 3' of the joint 1' is formed based on a main ply with radially mutually parallel textile cords comprised in a rubber matrix, just like the carcass ply. This ply is arranged in such a way as to form a turn-up around the reinforcement 4' of the joint and on the other hand is anchored in the bead 2' of the joint 1', ...

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PUM

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Abstract

The invention relates to a radially expandable assembly drum (1) for producing a tyre adapter on a wheel rim, the drum comprising a central shaft (3), a first assembly (10) of segments (100), and a second assembly (20) of segments (200), all of the segments being peripherally arranged around the shaft (3) so as to form a generally cylindrical outer face (50) of the drum. According to the invention, the segments (100) of the first assembly (10) and the segments (200) of the second assembly (20) face each other axially, and the drum (1) is arranged so as to allow a different radial expansion ofthe segments of the first assembly (10) compared to the segments of the second assembly (20) of segments between two working positions.

Description

technical field [0001] The invention relates to a building drum and an assembly method for producing tire joints for mounting tires on rims. Background technique [0002] Document WO 00 / 78565 discloses joints based on reinforced rubber compounds that can be elastically deformed in the axial direction and in the radial direction, the two joints connecting the tire The rim of the rim is connected to the bead so that the properties of the tire can be improved. [0003] More specifically, said joint generally comprises an inner bead securing the joint to the rim, and an outer bead intended to receive the bead of the tyre, the inner bead and the outer bead being connected by a reinforcement, so The reinforcement allows elastic deformation of the joint in the radial direction and in the axial direction. The joints are produced by stacking various products based on rubber compounds on a support and then vulcanizing them in molds in press vulcanizers to give them the desired elast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/24
CPCB29D30/247
Inventor T·居伊P·马沙尔H·欣克D·埃尔南德斯
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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