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1. EP2541227 - METHOD OF TESTING RUBBER WEAR, AND METHOD, DEVICE AND PROGRAM OF CALCULATING RUBBER INDEX OF TIRE USING METHOD OF TESTING RUBBER WEAR

Office
European Patent Office
Application Number 11747458
Application Date 24.02.2011
Publication Number 2541227
Publication Date 02.01.2013
Publication Kind B1
IPC
G01N 3/56
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
56Investigating resistance to wear or abrasion
G01M 17/02
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
17Testing of vehicles
007Wheeled or endless-tracked vehicles
02Tyres
CPC
G01M 17/022
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
17Testing of vehicles
007Wheeled or endless-tracked vehicles
02Tyres
022the tyre co-operating with rotatable rolls
G01N 3/56
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
56Investigating resistance to wear or abrasion
G01N 2203/0218
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2203Investigating strength properties of solid materials by application of mechanical stress
02Details not specific for a particular testing method
0202Control of the test
0212Theories, calculations
0218Calculations based on experimental data
G01M 17/021
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
17Testing of vehicles
007Wheeled or endless-tracked vehicles
02Tyres
021Tyre supporting devices, e.g. chucks
Applicants BRIDGESTONE CORP
Inventors SHIBATA SATOSHI
Designated States
Priority Data 2010039373 24.02.2010 JP
Title
(DE) VERFAHREN ZUM TESTEN EINES GUMMIVERSCHLEISSES SOWIE VERFAHREN, VORRICHTUNG UND PROGRAMM ZUR BERECHNUNG DES GUMMI-INDEX EINES REIFENS MITHILFE DES VERFAHRENS ZUM TESTEN EINES GUMMIVERSCHLEISSES
(EN) METHOD OF TESTING RUBBER WEAR, AND METHOD, DEVICE AND PROGRAM OF CALCULATING RUBBER INDEX OF TIRE USING METHOD OF TESTING RUBBER WEAR
(FR) PROCÉDÉ POUR TESTER L'USURE DU CAOUTCHOUC, ET MÉTHODE, DISPOSITIF ET PROGRAMME DE CALCUL DE L'INDICE DE CAOUTCHOUC D'UN PNEU UTILISANT LEDIT PROCÉDÉ
Abstract
(EN)
Provided is a method of testing rubber wear in which a wear phenomenon occurred in a tire can be precisely reproduced in a sample, and a method of calculating the rubber index of a tire using the method of testing rubber wear. Also provided is a test method for predicting the anti-wear properties of a tire by using a test piece of the same rubber as that of a tire tread, which is a method of testing rubber wear in which, while a disk-shaped sample 3 and a disk-shaped grinding wheel 1 are rotated at individually predetermined numbers of rotations, the sample 3 is pressed on the outer periphery of the grinding wheel 1. A pressing load is applied to the sample 3 such that a contact pressure when the sample is pressed on the outer periphery of the grinding wheel 1 and a contact pressure at a site related to the evaluation of rubber wear of tread are the same.

(FR)
L'invention concerne un procédé pour tester l'usure du caoutchouc, et une méthode de calcul de l'indice de caoutchouc basée sur ce procédé, capables de reproduire avec précision dans un échantillon un phénomène d'usure se produisant dans un pneu. Le procédé d'essai estime la résistance à l'usure d'un pneu en utilisant comme éprouvette le même caoutchouc que celui d'une bande de roulement, et est mis en œuvre en comprimant une éprouvette en forme de disque (3) sur la périphérie extérieure d'une roue abrasive en forme de disque (1) tout en faisant tourner l'éprouvette (3) et la roue abrasive (1) à des vitesses de rotation prédéterminées distinctes. Une charge de compression est appliquée de telle sorte que la pression de contact entre l'éprouvette (3) et la périphérie extérieure de la roue abrasive (1) soit égale à la pression de contact de la partie de la bande de roulement, en vue d'évaluer l'usure du caoutchouc.