Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent
1991-12-17
1994-08-23
Bucci, David A.
Material or article handling
Self-loading or unloading vehicles
Conveyor
14 711, B60P 143
Patent
active
053402677
ABSTRACT:
A retractable ramp mechanism for a vehicle includes a frame mounted to the vehicle and a ramp mounted to the frame by way of a linkage for movements between stowed and extended positions. The linkage is constructed and arranged to permit an inner end of the ramp to pivot upwardly with respect to the frame from a lower position to an engagement position. In the engagement position, the inner end of the ramp may be engaged with a work surface of the vehicle. The linkage includes a mechanism for applying a biasing force to bias the inner end of the ramp upwardly to the engagement position when the ramp is in the extended position.
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Todco "Rollaramp" brochure, date unknown.
Dietrich Alfred T.
Stoll Donald E.
Bucci David A.
Overhead Door Corporation
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