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1. EP1315625 - METHOD FOR ENHANCING DRY GROUND ADHERENCE OF A TYRE

Office
European Patent Office
Application Number 01967298
Application Date 27.08.2001
Publication Number 1315625
Publication Date 04.06.2003
Publication Kind A1
IPC
B60C 19/08
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
19Tyre parts or constructions not otherwise provided for
08Electric-charge-dissipating arrangements
B60C 11/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
11Tyre tread bands; Tread patterns; Anti-skid inserts
B60C 19/08
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
19Tyre parts or constructions not otherwise provided for
08Electric-charge-dissipating arrangements
CPC
B60C 19/08
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
19Tyre parts or constructions not otherwise provided for
08Electric-charge-dissipating arrangements
Applicants MICHELIN SOC TECH
MICHELIN RECH TECH
Inventors POULBOT VALERY
Designated States
Priority Data 0109857 27.08.2001 EP
0011255 01.09.2000 FR
Title
(DE) VERFAHREN ZUM HERSTELLEN VON FAHRZEUGREIFEN MIT EINER HOHEN TROCKENGRIFFIGKEIT
(EN) METHOD FOR ENHANCING DRY GROUND ADHERENCE OF A TYRE
(FR) PROCEDE POUR AMELIORER L'ADHERENCE SUR SOL SEC D'UN PNEUMATIQUE
Abstract
(EN)
The invention concerns a method for enhancing dry ground adherence of a tyre casing comprising a running tread (1) based on an electrically insulating material which is delimited laterally by two side surfaces (4 and 5) linking between them inner and outer radial surfaces (2 and 3) of said running thread. The invention is characterised in that the method consists in using a running tread comprising on its circumference at least a conductive ply (10) substantially linking said side surfaces (4 and 5) to each other, said ply (10) having lower resistivity than that of said insulating material, which is radially provided on both sides (11 and 12) of said ply (10) in said running tread (1).

(FR)
La présente invention concerne un procédé pour améliorer l'adhérence sur sol sec d'une enveloppe de pneumatique, laquelle comporte une bande de roulement (1) à base d'une matière électriquement isolante qui est délimitée latéralement par deux faces latérales (4 et 5) reliant entre elles des faces radialement interne et externe (2 et 3) de ladite bande de roulement. Selon l'invention, ce procédé consiste à l'utiliser une bande de roulement comportant sur sa circonférence au moins une couche conductrice (10) reliant sensiblement lesdites faces latérales (4 et 5) entre elles, ladite couche (10) présentant une résistivité inférieure à celle de ladite matière isolante, laquelle est radialement prévue des deux côtés (11 et 12) de ladite couche (10) dans ladite bande de roulement (1).