Steerable wheel assembly with damping and centering force...

A - Human Necessities – 63 – C

Patent

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Details

A63C 5/06 (2006.01) A63C 17/00 (2006.01) A63C 17/06 (2006.01) A63C 17/14 (2006.01) A63C 17/22 (2006.01)

Patent

CA 2349615

A steerable wheel assembly for an in-line skate or roller ski comprises a hollow or dish-shaped wheel (11), a wheel bearing (13), and a wheel support (14) connecting the wheel (11) to a steering pivot (16) which is substantially disposed at a distance measured radially from the rotational axis of the wheel (11) where that distance is greater than the outer radius of the wheel bearing (13) and less than the outer radius of the wheel (11). Steering of the wheel occurs as the user's weight is displaced or the chassis of the device is inclined with respect to the ground toward the desired turning direction. A chassis for an in-line skate or roller ski containing a damping and centering force mechanism which may be used to moderate the behavior of a steering mechanism or suspension mechanism comprises a structural member (21), a damper housing (17), a damper piston (19), a fluid chamber (24), and a centering force means (18). When the steerable wheel assembly is coupled with the chassis with internal damping and centering force mechanism, a sporting device with improved handling and maneuverability is provided. A flex spring (31) may provide steering, self-centering and spring suspension in a single assembly. Brakes such as drum or disk brakes connected to one or more wheels may be provided with a boot-actuated cable assembly.

Selon cette invention, un ensemble roue directionnelle pour patin à roues alignées ou ski à roulettes comprend une roue creuse ou en assiette (11), un roulement de roue (13) et un support de roue (14) reliant la roue (11) à un pivot de direction (16) disposé à une distance sensible, mesurée radialement, de l'axe de rotation de la roue (11), ladite distance étant supérieure au rayon externe du roulement de roue (13) mais inférieure au rayon externe de la roue (11). L'utilisateur oriente la roue en déplaçant son poids ou en inclinant le châssis par rapport au sol dans la direction désirée. Un châssis pour patin à roues alignées ou ski à roulettes comprend un élément structurel (21), un boîtier d'amortisseur (17), un piston d'amortisseur (19), une chambre pour fluide (24) et un dispositif de force de centrage (18). Le couplage de l'ensemble roue directionnelle et du châssis avec mécanisme intégré d'amortissement et de force de centrage permet d'obtenir un article de sport plus maniable et plus facile à manipuler. Grâce à un ressort flexible (31), on peut regrouper la direction, l'autocentrage et la suspension à ressort en un seul ensemble. On peut équiper l'objet de l'invention de freins (à disque ou à tambour) reliés à une ou plusieurs roues et munis d'un ensemble de câbles actionnés par la chaussure.

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