Single speed gear assembly for a wheelchair

Details Single speed gear assembly for a wheelchair Single speed gear assembly for a wheelchair

A - Human Necessities

61

G

A61G 5/10 (2006.01)

Patent

CA 2187268

A single speed gear assembly suitable for use in a wheelchair is disclosed. The assembly incorporates a sun gear together with a plurality of planet gears which reduces the amount of torque required by the user in order to effect rotation of the wheel to which the assembly is attached. Specific ratios for the diameter of the sun gear to the each planet gear is taught. The assembly conveniently eases the use of a wheelchair by those confined to using same.

Engrenage à une vitesse pour utilisation avec fauteuil roulant. L'engrenage comprend un pignon planétaire avec une pluralité de pignons satellites ou intermédiaires réduisant le couple requis pour imprimer un mouvement à la roue reliée à cet engrenage. Des rapports spécifiques sont définies par le rapport du diamètre du planétaire au diamètre de chacun des pignons intermédiaires. L'engrenage facilite l'utilisation d'un fauteuil roulant par une personne qui y est confinée.

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