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1. WO1996040478 - EXPANDABLE TREAD MOLD AND METHOD FOR RETREADING TIRES

Publication Number WO/1996/040478
Publication Date 19.12.1996
International Application No. PCT/US1996/008796
International Filing Date 04.06.1996
Chapter 2 Demand Filed 02.12.1996
IPC
B29D 30/06 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
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
CPC
B29D 30/0629
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)
0601Vulcanising tyres; Vulcanising presses for tyres
0606Vulcanising moulds not integral with vulcanising presses
0629with radially movable sectors
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
Applicants
  • OLIVER RUBBER COMPANY [US]/[US]
Inventors
  • KING, Michael, J.
  • FLYNN, Robert, A.
  • CLAYTON, Andrew, R.
Agents
  • FELGER, Thomas, R.
Priority Data
08/478,00607.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EXPANDABLE TREAD MOLD AND METHOD FOR RETREADING TIRES
(FR) MOULE POUR BANDE DE ROULEMENT EXPANSIBLE ET PROCEDE DE RECHAPAGE DE PNEUS
Abstract
(EN)
Tire recapping or retreading apparatus and method of use including the use of an expandable tread mold with a plurality of mold segments. A tread mold loading machine (20) is used to position a prepared tire carcass (182) or built tire relative to the mold segments (202) and to install the mold segments on the exterior of the built tire. The mold segments are retained in place on the exterior of the tire carcass by a tension band. Resilient elastic tension bands or metal tension springs (204) hold the mold segments on the tire carcass after the mold segments have been released from the tread mold loading machine. The use of the tread mold segments eliminates distortion of the tire carcass during installation of the tread mold on the exterior of the built tire.
(FR)
La présente invention se rapporte à un procédé et à un appareil de rechapage ou de reconditionnement des pneus comprenant l'utilisation d'un moule expansible pour la chape des pneus comportant une pluralité de segments de moule pour la chape des pneus. Un appareil de chargement du moule pour la chape des pneus (20) est utilisé pour positionner une carcasse de pneu déjà préparée (182) ou un pneu formé par rapport aux segments de moule (202) et pour monter les segments de moule sur l'extérieur du pneu formé. Les segments de moule sont maintenus à l'extérieur de la carcasse de pneu par une attache. Des attaches élastiques résilientes ou ressorts métalliques de tension (204) maintiennent les segments de moule sur la carcasse de pneu une fois que les segments de moule ont été dégagés de l'appareil de chargement du moule. L'utilsation des segments de moule pour la chape des pneus permet d'éliminer la distorsion de la carcasse de pneu durant le montage du moule pour la chape des pneus à l'extérieur du pneu formé.
Also published as
NZ311253
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