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1. (WO2018122736) METHOD FOR CHECKING TYRES

Pub. No.:    WO/2018/122736    International Application No.:    PCT/IB2017/058427
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 28 00:59:59 CET 2017
IPC: G01M 17/02
Applicants: PIRELLI TYRE S.P.A.
Inventors: BOFFA, Vincenzo
ANTOJ, Riccardo
HELD, Alessandro
BALLARDINI, Valeriano
CASADIO TOZZI, Giuseppe
Title: METHOD FOR CHECKING TYRES
Abstract:
A method for checking tyres, comprising: • a database associating tyre models with their three-dimensional profiles and a compression force, where constructing the database comprises for each tyre model: • i. providing said tyre model on a resting plane, wherein the tyre lies on one side, • ii. pushing the opposite side of the tyre to a predetermined height; • iii. repeating the measurement for a plurality of points on the tyre surface for at least an entire rotation of the tyre • iv. measuring a force exerted on each point • v. calculating a statistical value as a function of said force; • vi. associating said statistical value with said three-dimensional profile of tyre model in said database; • during checking a tyre: applying, to an outer surface of a tyre, said compression force equal to said statistical value as a function of said force according to said model that corresponds to said tyre to be checked as obtained from said database to detect a defect thereof.