Underfloor extendible ramp for vehicles

Material or article handling – Self-loading or unloading vehicles – Conveyor

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

296 26, 296 61, 414921, 14 695, B60P 100

Patent

active

053931920

ABSTRACT:
The disclosure comprises a tray mountable under the floor of a vehicle, which tray contains an extendible ramp mechanism. This mechanism comprises a ramp and a driving panel for the ramp. The ramp is fulcrummed intermediate its ends on the outer ends of parallel arms extending from the driving panel. Also in the tray, as part of the driving mechanism, are a pair of parallel toothed belts driven by a reversible rotating motor, which belts are attached to the driving panel for extending and retracting the ramp from the tray. Mounted under the driving panel is a reciprocating motor connected by a crank arm to a shaft having additional crank arms pivotally connected to the underside of the ramp adjacent the driving panel. When the ramp is fully extended, the reciprocating motor tilts the ramp so that its inner end is moved upwardly to be flush with the floor of the vehicle. Simultaneously, the outer end of the ramp contacts the ground. The ramp has parallel side barriers which spring into position when the ramp is fully extended. These barriers are automatically folded against the top surface of the ramp by an angularly-mounted roller which contacts a cammed surface at the inner ends of each barrier as the ramp is retracted into the tray.

REFERENCES:
patent: 1639879 (1927-08-01), Buffington
patent: 1699882 (1929-01-01), Ferguson
patent: 3511393 (1970-05-01), Abromavage et al.
patent: 3870170 (1975-03-01), Noble et al.
patent: 3933258 (1976-01-01), Forsyth et al.
patent: 3955827 (1976-05-01), Wonigar
patent: 4058228 (1977-11-01), Hall
patent: 4078678 (1978-03-01), Tordella
patent: 4134504 (1979-01-01), Salas et al.
patent: 4198187 (1980-04-01), Mountz
patent: 4242032 (1980-12-01), Whiteman et al.
patent: 4305694 (1981-12-01), Chan
patent: 4325668 (1982-04-01), Julian et al.
patent: 4372727 (1983-02-01), Fredrickson et al.
patent: 4685857 (1987-08-01), Goeser et al.
patent: 4685858 (1987-08-01), Manning et al.
patent: 4722109 (1988-02-01), Mountz
patent: 4759682 (1988-07-01), Hood
patent: 4850788 (1989-07-01), Dickson
patent: 4900217 (1990-02-01), Nelson
patent: 4958979 (1990-09-01), Svensson
patent: 5133634 (1992-07-01), Gingrich et al.
patent: 5158419 (1992-10-01), Kempf et al.
patent: 5160236 (1992-11-01), Redding et al.
patent: 5199150 (1993-04-01), Mortenson
patent: 5257894 (1993-11-01), Grant
patent: 5305486 (1994-04-01), Smith et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Underfloor extendible ramp for vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Underfloor extendible ramp for vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Underfloor extendible ramp for vehicles will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-844373

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.