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US 2011/0254245 A1Published application
Twist Grip Steerable, Lever-Driven Wheelchair
OwnerWilliam Taylorinventor
Life of this patent
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Abstract
A racing wheelchair is disclosed. The racing wheelchair may have a pair of rear wheels and a steerable single front wheel. The rear wheels may be independently driven by a lever, through a derailer and a chain, such that pushing one of the two levers will move one of the wheels but not the other. The front wheel is steerable by twist grips located at the removed end of the levers. Brake assemblies and shifter assemblies of the derailers are located adjacent the twist grip, and may be rigidly mounted to the push lever or mounted to the twist grip to rotate therewith
Claims11
A wheelchair comprising:
- a frame;
- a pair of separately driven rear wheels;
- a front wheel assembly having a front wheel;
- a pair of lever drive assemblies, each having a drive lever, derailer assembly, and a chain for engaging a rear wheel, each drive lever assembly for independently driving one of the pair of rear wheels, wherein each drive lever includes a twist grip steering assembly having a twist grip member for engaging the front wheel assembly such that rotating the twist grip member of one drive lever will move the front wheel in a first direction and rotating the other twist grip member of the other drive lever will move the front wheel in a second direction.
1 more element
Dependencies are inferred from the claim text.