WHEELCHAIR

摘要

A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

主权项

1. A human mobility device, comprising:
a frame; a seat configured to support a human; a plurality of wheels connected to said frame; a transmission connected to said frame and at least one of said plurality of wheels; at least one lever connected to said frame and to said transmission; said lever being shiftable between:
a first mode of operation in which movement of said lever in a first direction causes said transmission to drive at least one of said plurality of wheels in a first direction, so as to propel said human mobility device forward;a second mode of operation in which movement of said lever in said first direction causes said transmission to drive at least one of said plurality of wheels in a second direction, so as to propel said human mobility device backward.