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1. WO2022002796 - METHOD AND APPLICATION UNIT FOR APPLYING A SOUND-ABSORBING MATERIAL IN AN INNER CAVITY OF A PNEUMATIC TYRE

Publication Number WO/2022/002796
Publication Date 06.01.2022
International Application No. PCT/EP2021/067540
International Filing Date 25.06.2021
IPC
B29D 30/00 2006.1
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
B26D 7/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
7Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
08Means for treating work or cutting member to facilitate cutting
B26D 7/14 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
7Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
08Means for treating work or cutting member to facilitate cutting
14by tensioning the work
Applicants
  • BRIDGESTONE EUROPE NV/SA [BE]/[BE]
Inventors
  • CIARNELLA, Alessio
  • STRAFFI, Paolo
Agents
  • MARCHETTI, Alessio
Priority Data
10202000001573930.06.2020IT
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPLICATION UNIT FOR APPLYING A SOUND-ABSORBING MATERIAL IN AN INNER CAVITY OF A PNEUMATIC TYRE
(FR) PROCÉDÉ ET UNITÉ D'APPLICATION POUR APPLIQUER UN MATÉRIAU INSONORISANT SUR UNE CAVITÉ INTERNE D'UN PNEU
Abstract
(EN) Method and application unit (3) for applying a sound-absorbing material (2) to an inner cavity of a pneumatic tyre (1). The following steps are provided: eliminating an excess end (5) of a strip (4) of sound-absorbing material (2); progressively separating a protective lining (7) from an adhesive layer (6) of the strip (4) as the strip (4) of sound-absorbing material (2) is applied to the inner cavity of the tyre; implementing by means of the strip (4) a separation opening (8) that starts from an opposite side of the protective lining (7) and ends at the protective lining (7) which remains intact, and separating the excess end (5) from the remaining part of the strip (4) of sound-absorbing material (2); and pulling the excess end (5) in relation to the remaining part of the strip such as to separate the protective lining (7) from the strip (4).
(FR) L'invention porte sur un procédé et sur une unité d'application (3) pour appliquer un matériau insonorisant (2) sur une cavité interne d'un pneu (1). Les étapes suivantes sont prévues : élimination d'une extrémité en excès (5) d'une bande (4) de matériau insonorisant (2) ; séparation progressive d'une garniture de protection (7) d'une couche adhésive (6) de la bande (4) alors que la bande (4) de matériau insonorisant (2) est appliquée sur la cavité interne du pneu ; mise en œuvre, au moyen de la bande (4), d'une ouverture de séparation (8) qui commence d'un côté opposé de la garniture de protection (7) et se termine au niveau de la garniture de protection (7) qui reste intacte, et séparation de l'extrémité en excès (5) de la partie restante de la bande (4) de matériau insonorisant (2) ; et traction de l'extrémité en excès (5) par rapport à la partie restante de la bande de manière à séparer la garniture de protection (7) de la bande (4).
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