Method and system for marking tires

B - Operations – Transporting – 60 – C

Patent

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Details

B60C 13/00 (2006.01) B23K 26/36 (2006.01)

Patent

CA 2530223

A system and associated method of marking a molded vehicle tire with laser engraved information to provide both human visible and machine readable data concerning the tire. Information contained in a barcode on the tire is read at a first station and supplied to a control unit. The physical location of human visible information previously molded into the tire is read from the tire at a second station and supplied to the control unit which uses this information to position a laser located at a third station for engaging additional human visible information pertaining to the manufacture of the tire adjacent the existing visible information to satisfy the Department of Transportation (DOT) tire marking requirements. The additional information also can be laser engraved into the tire in a machine readable encoded format, such as 2D symbols, for subsequent control and verification throughout the life of the tire.

L'invention concerne un système et un procédé associé pour marquer un pneu de véhicule moulé avec des informations gravées au laser, destinées à fournir des données relatives au pneu, à la fois lisibles par machine et visibles par l'homme. Des informations contenues dans un code-barres sur le pneu sont lues au niveau d'une première station et fournies à une unité de commande. L'emplacement physique des informations visibles par l'homme, moulées au préalable dans le pneu, est extrait du pneu au niveau d'une deuxième station et fourni à l'unité de commande qui utilise ces informations pour positionner un laser situé au niveau d'une troisième station afin d'introduire des informations visibles par l'homme complémentaires relatives à la fabrication du pneu adjacent aux informations visibles existantes, de façon à satisfaire aux exigences de marquage des pneus du ministère des Transports. Ces informations complémentaires, telles que des symboles 2D, peuvent être également gravées au laser dans le pneu sous un format codé lisible par machine à des fins de contrôle et de vérification ultérieurs pendant la vie du pneu.

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