Wheelchair
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United States of America Patent
Stats
-
Jan 3, 2012
Grant Date -
Oct 21, 2010
app pub date -
Jun 30, 2010
filing date -
Mar 14, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for providing an automated axial force to a continuously variable transmission (CVT) in a wheelchair. An electronic transmission control receives one or more input signals generated by throttle position or other variables. The microprocessor generates an output signal that adjusts the axial force applied to a CVT thereby automatically adjusting the input to output ratio. The invention also provides a manually controlled variator is designed for use on a wheelchair. The manual shifter hydraulically adjusts an axial force imparted on a variator in communication with a wheelchair wheel and a hand rim. Application of the axial force causes the hand rim input and wheelchair wheel output ratio to change, permitting a wheelchair operator to manually adjust the input to output ratio to more easily operate the wheelchair.
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Family
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