Method for the semi-automatic treatment of defects in a carcass to be retreaded

The semi-automatic tire retreading method addresses the inefficiencies of existing systems by employing a rotating support, camera, and operator interface for precise damage detection and repair, enhancing reliability and reducing operational time.

WO2026114614A1PCT designated stage Publication Date: 2026-06-04MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
Filing Date
2025-11-06
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing tire retreading systems require complex and unreliable automated systems for detecting and repairing damage in tire casings, necessitating substantial virtual libraries and lengthy preliminary tests, while manual methods are tedious and time-consuming.

Method used

A semi-automatic repair method using a rotating support, camera, and operator interface to identify and repair tire casing damage, allowing operators to select and execute treatments with high reliability and precision, utilizing a robot for precise tool movement and a safety system to protect reinforcement cables.

Benefits of technology

Enables efficient, reliable, and precise detection and repair of tire casing damage without complex automated systems, reducing operational time and ensuring the integrity of reinforcement cables.

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Abstract

The present invention relates to a method for semi-automatically repairing a carcass (1) of a tire to be retreaded, the method comprising transmission, by a camera (5), of the image of the angular sectors (S) of the outer surface (13) of the carcass (1), the transmission being carried out to an operator interface (8) allowing an operator to search for possible damage (10) present on the carcass (1). The operator then selects types of damage (10) and regions to be treated (Zt) surrounding the damage (10) so as to allow the operator interface (8) to communicate with a control device (7) controlling a treatment device (14) in order to carry out, with a treatment tool (6) corresponding to the damage (10), the treatment of the region to be treated (Zt) so as to allow the operator to visualize the state of the reinforcement cords (12) and determine whether the reinforcement cords (12) are still able to ensure their function of reinforcing the carcass (1).
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