Material or article handling – Self-loading or unloading vehicles – Loading or unloading by other carrier or mover means – and...
Patent
1998-04-23
1999-11-02
Bucci, David A.
Material or article handling
Self-loading or unloading vehicles
Loading or unloading by other carrier or mover means, and...
414812, 414917, 414921, B60F 144
Patent
active
059758309
ABSTRACT:
An under floor lift comprising a horizontal, U-shaped header framework which is mountable between a vehicle axle and floor, and which reciprocatingly receives a nestable carriage comprising a second U-shaped framework. The carriage comprises a transverse motor mount plate and a pair of spaced, horizontal arms between which is received the lift platform. The platform is pivotably suspended, lifted and lowered by spaced pairs of parallelogram linkages pivotably secured at their outboard ends to the outboard end of the carriage side rails and at their inboard ends to the inboard end of the lift platform. The carriage is telescoped by a gear and chain mechanism from an inboard stowed position horizontally out to a transfer level deployed position. The wheelchair lift is moved by a hydraulic/chain drive downwardly and upwardly supported by the parallelogram arms to or from a ground level position, to permit the lift to be an in-swing, negative type lift. An automatically transitioning inboard bridge plate is pivoted to the platform, and during decent inclines and forms an inboard barrier. The bridge plate is slidably mounted on channels or rails which are in turn mounted on a support plate pivotably mounted to the outboard edge of the carriage motor mount plate. The combination of the bridge and support plate assembly provides excellent stability to the lift mechanism, essentially eliminating lateral sway way and the problems attendant thereto.
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Antrim Russell G.
Goodrich Ronald W.
Bucci David A.
Dennis Robert F.
Dulin Jacques M.
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