CURING MEMBRANE FOR A TYRE

Curing membrane (7) for a tyre, comprising a flexible cross-linked rubber wall, the external surface of which is designed to come into contact with the internal surface of a tyre blank during curing, the external surface having a relief structure comprising a plurality of air vent channels. Said rel...

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Bibliographic Details
Main Authors MERINO LOPEZ, Jose, FAUGERAS, Alain, PIALOT, Frédéric
Format Patent
LanguageEnglish
French
Published 22.08.2019
Subjects
PERFORMING OPERATIONS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:Curing membrane (7) for a tyre, comprising a flexible cross-linked rubber wall, the external surface of which is designed to come into contact with the internal surface of a tyre blank during curing, the external surface having a relief structure comprising a plurality of air vent channels. Said relief structure has first channels which form air vent grooves (100) arranged at a distance of 2 to 5 mm and having a depth of 0.4 to 1 mm, two adjacent grooves defining, between them, an inter-groove region (500) which comprises second channels which form furrows (1000) for channelling air which are constructed so as to communicate with each other and with at least one of the grooves (100), the furrows each having a depth of 0.01 to 0.4 mm and being located at a distance of 0.2 to 1 mm from each other. Membrane de cuisson (7) pour pneumatique comportant une paroi flexible en caoutchouc réticulé dont la surface externe est destinée à venir au contact de la surface interne d'une ébauche de pneumatique lors de la cuisson, la surface externe ayant une structure en relief comportant plusieurs canaux d'évacuation d'air. Ladite structure en relief présente des premiers canaux formant gorges (100) d'évacuation d'air agencées à une distance comprise entre 2 et 5mm, et ayant une profondeur comprise entre 0,4 et 1 mm, deux gorges adjacentes définissant entre elles une zone inter-gorges (500) comportant des deuxièmes canaux formant sillons (1000) de canalisation d'air réalisées de manière à communiquer entre eux et avec au moins l'une des gorges (100), les sillons ayant chacun une profondeur comprise entre 0,01 et 0,4mm et étant situés à une distance comprise entre 0,2 et 1mm l'un de l'autre.
Bibliography:Application Number: WO2019FR50309