Patient lifting device

Details Patient lifting device Patient lifting device

1987-11-27

1989-10-24

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 24, 187 25, 5 86, 267 75, B66B 920, A61G 710

Patent

active

048755559

ABSTRACT:
A patient lifting device shows a lifting platform (26) connected to an upper column part (16), which is raiseable and lowerable by a jack (18) operated by an electric motor (20). A gas spring (34) is arranged between the upper column part (16) and a lower part (24) of the jack (18) to reduce the load on said jack. The lower part (24) rests on a seat (27), from which it can move in upwards direction. If the lifting platform (26) on lowering is stopped by an obstacle (30) the jack (18) will continue to retract, the lower part (24) together with an arm (28) moving upwards from the seat (27), which arm (28) acts on a switch (32) to break the current to the jack (18), which thereby is stopped.

REFERENCES:
patent: 1563792 (1925-12-01), Rickard
patent: 3309060 (1967-03-01), Villars
patent: 3940808 (1976-03-01), Petrini
patent: 4475072 (1984-10-01), Schwehr et al.
patent: 4631761 (1986-12-01), Lederman
patent: 4633538 (1987-01-01), James
patent: 4742891 (1988-05-01), Kunii et al.

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