Safety barrier/ramp actuating mechanism for wheelchair lifts
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United States of America Patent
Stats
-
Aug 8, 1995
Grant Date -
N/A
app pub date -
Feb 18, 1994
filing date -
Feb 18, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved safety barrier/ramp actuation mechanism for combination folding stair and platform wheelchair lifts which translate from one configuration to the other depending upon the purpose to be served and have a combination safety barrier/ramp at the outboard end of the platform, the mechanism comprising a triple link mechanism and internally contained piston and bellcrank for reciprocating said barrier/ramp, and a pressure relief for said system to prevent raising said barrier/ramp when a load is resting thereon in ramp position, and the invention includes new steps in the method of operation of the stair and lift combination to enhance the safety thereof.
First Claim
Family
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Cited Art Landscape
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