Bi-Fold Wheelchair Ramp
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United States of America Patent
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N/A
Issued Date -
Aug 7, 2008
app pub date -
Sep 2, 2005
filing date -
Sep 10, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A dynamic system for folding and unfolding of one ramp section of a bi-folding, flip-out wheelchair ramp relative to the orientation of a driven ramp section is provided. The ramp section coupled to the dynamic system generally moves under the force of gravity during stowage and deployment. The dynamic system is independent from the drive system of the ramp and opposes the force of gravity. One embodiment of the dynamic system includes a fixed length cable connecting the non-driven ramp section to the enclosure, a gas spring for tensioning the cable and a pulley arrangement.
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Family
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