Self-sealing tire and manufacturing method of the same

Details Self-sealing tire and manufacturing method of the same Self-sealing tire and manufacturing method of the same

B - Operations, Transporting

60

C

B60C 19/12 (2006.01) B29C 73/22 (2006.01)

Patent

CA 2466763

A self-sealing tire according to the present invention includes a pneumatic tire and a puncture sealing layer disposed over a whole tire inner wall surface from one shoulder portion to the other shoulder portion of the pneumatic tire. The puncture sealing layer comprises an annular sponge layer which is impregnated with an adhesive so as to be exposed on a radially outer surface side thereof, and a bonding layer of an adhesive which is provided on a radially outer surface of the sponge layer and is adhered to the tire inner wall surface. The sponge layer is provided in a compressed state. The puncture sealing layer is press attached to the tire inner wall surface by a recovery force of the compressed sponge layer.

L'invention concerne un pneu auto-obturant doté d'une couche anti-crevaison qui s'étend sur toute la paroi interne du pneu depuis une partie d'épaulement du pneu jusqu'à l'autre partie d'épaulement. La couche anti-crevaison précitée est composée d'une couche d'étanchéité d'un matériau de liaison de la paroi interne du pneu sur la surface périphérique d'une couche spongieuse annulaire imprégnée d'un matériau adhésive de façon à être exposée à un côté de la surface périphérique externe. La couche anti-crevaison est liée par pression à la paroi interne du pneu au moyen de la force de rappel de la couche spongieuse appliquée lors de sa compression.

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