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1. WO2011010211 - TYRE RETREADING METHOD AND SYSTEM

Publication Number WO/2011/010211
Publication Date 27.01.2011
International Application No. PCT/IB2010/001765
International Filing Date 21.07.2010
IPC
B29D 30/54 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof
52Unvulcanised treads, e.g. on used tyres; Retreading
54Retreading
G01B 11/24 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
24for measuring contours or curvatures
CPC
B29D 2030/544
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
52Unvulcanised treads, e.g. on used tyres; Retreading
54Retreading
544Applying an intermediate adhesive layer, e.g. cement or cushioning element between carcass and tread
B29D 2030/546
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
52Unvulcanised treads, e.g. on used tyres; Retreading
54Retreading
546Measuring, detecting, monitoring, inspecting, controlling
B29D 30/54
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
30Producing pneumatic or solid tyres or parts thereof
06Pneumatic tyres or parts thereof ; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
52Unvulcanised treads, e.g. on used tyres; Retreading
54Retreading
G01B 11/24
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
24for measuring contours or curvatures
Applicants
  • BRIDGESTONE CORPORATION [JP]/[JP] (AllExceptUS)
  • LELIO, Luca [IT]/[IT] (UsOnly)
Inventors
  • LELIO, Luca
Agents
  • JORIO, Paolo
Priority Data
TO2009A00055422.07.2009IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) TYRE RETREADING METHOD AND SYSTEM
(FR) PROCÉDÉ ET SYSTÈME DE RECHAPAGE DE PNEU
Abstract
(EN)
A method and system (1) for retreading a tyre (2), whereby : the worn tread is removed from the tyre (2) to expose a lateral surface (4) of a casing (5); the lateral surface (4) of the casing (5) is skived, thus resulting in the formation of holes and/or craters (7); a three-dimensional profile of the lateral surface (4) is acquired by a three-dimensional scanner (12); the locations of the holes and/or craters (7) in the lateral surface (4) are determined by analysing the three- dimensional profile; cement (17) is only applied at the holes and/or craters (7) in the lateral surface, by supplying the locations of the holes and/or craters (7) to an automatic, electronically controlled applicator (16); the holes and/or craters (7) are filled with green rubber; a green-rubber cushion (9) and a tread strip (10) are wound about the lateral surface (4) of the casing (5); and the tyre (2) is cured.
(FR)
L'invention porte sur un procédé et un système (1) pour le rechapage d'un pneu (2), suivant lesquels : la bande de roulement usée est enlevée du pneu (2) pour exposer une surface latérale (4) d'une carcasse (5) ; la surface latérale (4) de la carcasse (5) est raclée, ce qui aboutit à la formation de trous et/ou cratères (7) ; un profil tridimensionnel de la surface latérale (4) est enregistré par un scanneur tridimensionnel (12) ; les sites des trous et/ou cratères (7) dans la surface latérale (4) sont déterminés par analyse du profil tridimensionnel ; de l'adhésif (17) est appliqué seulement au niveau des trous et/ou cratères (7) dans la surface latérale, par application dans les sites des trous et/ou cratères (7) avec un applicateur automatique à commande électronique (16) ; les trous et/ou cratères (7) sont remplis de caoutchouc cru ; une gomme de liaison en caoutchouc cru (9) et une bandelette talon de bande de roulement (10) sont enroulés autour de la surface latérale (4) de la carcasse (5) ; et le pneu (2) est durci.
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