System and method for providing gyroscopic stabilization to...

B - Operations – Transporting – 62 – H

Patent

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Details

B62H 7/00 (2006.01) B62M 6/00 (2010.01) B62M 1/00 (2010.01)

Patent

CA 2613834

This invention provides a stabilizing system and method for two-wheeled vehicles (typically small, human-powered bicycles) that affords the rider no restriction on the full range of movements (banks, leans, etc.) common to bicycles, but that provides greater stability during turns and other maneuvers so that an unintentional bank or tilt (poten¬ tially causing a fall) is less likely, even at relatively slow speeds and startup. A rotating mass of predetermined mass-value and radial mass-distribution is provided coaxially with the front axle. The mass is supported on bearings so as to freewheel with respect to the rotation of the front wheel. As such it can be induced to spin significantly faster than the front wheel thereby generating a gyroscopic effect at the front wheel about the axle. This gyroscopic effect influences the steering of the wheel by the rider. Due to precession, the wheel tends to follow any excessive bank by the bicycle, ensuring that the rider can "steer- out-of " an unintended tilt or bank. Likewise, the gyroscopic effect limits the rider's ability to execute excessive steering, thereby preventing jackknife movements.

L'invention porte sur un système de stabilisation de deux roues (bicyclettes) et le procédé associé n'empêchant pas les mouvement propres à ces cycles (inclinaison, piqué), mais assurant une meilleure stabilité dans les virages et autres manoeuvres . ce qui diminue les possibilités de piqué ou d'inclinaisons excessifs (susceptibles d'entraîner une chute) même à faible vitesse ou lors du démarrage. A cet effet l'essieu avant est muni d'une masse coaxiale de valeur et de répartition radiale prédéterminées. Ladite masse, montée en roue libre sur l'essieu, et donc indépendante de la roue avant, peut tourner sensiblement plus vite qu'elle, de qui produit un effet gyroscopique s'appliquant sur l'essieu de la roue avant. Cet effet gyroscopique influe sur le braquage de la roue par le cycliste. En raison de la précession, la roue tend à suivre toute inclinaison excessive de la bicyclette, ce qui permet au cycliste de se sortir de toute inclinaison ou couchage latéral non souhaité. De même l'effet gyroscopique limite la possibilité qu'a le cycliste d'exécuter des braquages excessifs et de mettre la roue en travers.

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