Tire device

B - Operations – Transporting – 60 – C

Patent

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Details

B60C 5/16 (2006.01) B60C 15/02 (2006.01) B60C 15/024 (2006.01)

Patent

CA 2374511

An arrangement relating to pneumatic tubeless tires which are fitted with a tire bead (12) in sealing abutment with a rim seat (13) inwardly from a rim edge (14) on each side of an undivided rim (11). The tire is provided with an internal seal (16) which is made of rubber or some like elastic material and which extends inwardly from the tire bead (12) along the rim seat (13). The outer part of the internal lip seal (16) that lies proximal to the rim edge (14) is fastened to the tire bead (12) at a distance from its end. The inner part of the internal seal (16) that lies proximal to the centre of the rim (11) has a circumference that is slightly smaller than the circumference of the rim (11) at this location. The seal (16) is adapted to seal at least around the region in which the tire bead (12) is in abutment with the rim seat (13) through the influence of the pneumatic pressure in the tire (10). .eta.

L'invention concerne un dispositif de pneumatiques sans chambre à air pourvus d'un talon (12) disposé de manière étanche sur un porte-jante (13) à l'intérieur d'un bord de jante (14) sur chaque côté d'une jante continue (11). Le pneumatique est pourvu d'un joint intérieur (16) constituée de caoutchouc ou d'une autre matière élastique analogue, lequel joint s'étend à l'intérieur du talon (12) le long du porte-jante (13). La partie extérieure du joint à lèvre intérieur (16) qui se trouve à proximité du bord de jante (14) est fixée sur le talon (12) à une certaine distance de son extrémité. La partie intérieure du joint à lèvre intérieur (16) qui se trouve à proximité du centre de la jante (11) présente une circonférence légèrement inférieure à celle de la jante (11) en cet endroit. Le joint intérieur (16) est conçu pour étanchéifier au moins la partie entourant la zone sur laquelle le talon (12) vient en contact avec le porte-jante (13) sous l'effet de la pression pneumatique dans le pneumatique (10).

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