Pneumatic tires and method of making

Details Pneumatic tires and method of making Pneumatic tires and method of making

B - Operations, Transporting

60

C

B60C 5/14 (2006.01) B29D 30/20 (2006.01)

Patent

CA 2281692

The present invention relates to new and novel tire construction and method of making same wherein the uncured elastomeric material that is laid upon the tire building drum (22) during building of the tire preform (10) will not experience substantially meridional stretch which would otherwise cause a decrease in the uniformity of ply thickness during expansion of the preform in the vulcaninzing mold.

La présente invention concerne une nouvelle structure de pneumatiques et un procédé de fabrication de celle-ci. L'élastomère non-vulcanisé, appliqué sur le tambour (22) de confection de pneu au cours de la fabrication de l'ébauche (10), ne va pratiquement pas être étiré dans le sens méridien, ce qui autrement provoquerait une réduction de l'uniformité de l'épaisseur des nappes au cours de l'expansion de la préforme dans le moule de vulcanisation.

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