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Equipment for manufacturing reinforcement of inflating tyre

A technology of pneumatic tires and reinforcements, applied in tires, applications, household appliances, etc.

Inactive Publication Date: 2009-12-02
OCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another possible reason for this difficulty is the inclination of the axis of the laying equipment (relative to the mid-plane of the tyre)
This inclination can cause an asymmetry in the space required for said laying equipment adjacent to the model and can thus limit the accessibility of the extrusion means at least on one side of the model

Method used

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  • Equipment for manufacturing reinforcement of inflating tyre
  • Equipment for manufacturing reinforcement of inflating tyre
  • Equipment for manufacturing reinforcement of inflating tyre

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] exist figure 1 In (and, for all the examples shown, this is not to be taken as limiting in any way), model 1 is a core (eg a rigid and removable core) which defines the geometry of the inner surface of the tyre. The core is coated with rubber, for example, with a layer of rubber compound based on butyl rubber, with a layer of rubber compound for coating the carcass cord, with a layer of carcass cord and with a layer for coating the carcass cord. Rubber compound layer for crown reinforcement. The latter layer of rubber compound allows the arches 3 of the cords 2 to be progressively held on the core by a connecting action as they are laid. Of course, the core 1 is rotated by any suitable means (not shown). Guides 4 (eyelets in this example) guide the cords 2 .

[0032] The cords are conveyed substantially continuously and as required by suitable conveying means (not shown). A cord tensioning device (not shown here) is used to control the tension of the cords as they ...

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PUM

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Abstract

The invention relates in particular to a plant for the manufacture of reinforcements for pneumatic tires, said plant being intended for the manufacture of reinforcements consisting of cords (2) substantially continuous and delivered as required by suitable conveying means, said plant being intended for use with A substantially annular form (1) co-operates on which said reinforcements are progressively arbitrated by arranging arches (3) of said cords along their desired path on said form surface Constructed, the apparatus comprises: cord guides (4) in which the cords slide; means (5) for moving said guides along the desired path of said cords; and , and able to hold the cord against the first and second pressing means (7, 8) of the form substantially at the end (6) of said arched structure; said apparatus is characterized in that the pressing means comprise at least Rotate the press arm (9) on the model side (B).

Description

technical field [0001] This invention relates to the manufacture of pneumatic tires. More precisely, it concerns the installation of the cords used to make up the tire reinforcement during processing. More particularly, it provides equipment capable of producing such reinforcements on a mold of a shape close to or identical to that of the inner cavity of the tire, that is, on a generally annular mold supporting the tire green body during the manufacture of the tyre. and methods. Background technique [0002] Processes and equipment for integrating the manufacture of tire reinforcements with the processing of the tire itself are already known in this technical field. This means that instead of using a semi-finished product, such as a reinforcing ply, one or more reinforcements can be manufactured in situ from a single spool of cord during tire processing. [0003] Among these processes and equipment, the solution described in patent application EP0580055 is particularly su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/16
CPCB29D30/1635B29D30/16B29D2030/1678
Inventor 让-克洛德·马耶埃马纽埃尔·布莱特罗恩
Owner OCIETE DE TECH MICHELIN