Beds – With means for relocating an invalid – With a hoisting – lifting – elevating – or raising device
Patent
1982-07-23
1985-03-05
Grosz, Alexander
Beds
With means for relocating an invalid
With a hoisting, lifting, elevating, or raising device
5 84, 5 85, 5 61, 192 45, 192 67R, 192 93R, A61G 710
Patent
active
045021694
ABSTRACT:
An adjustable frame 6 to 20 applied to a bed, supports selectively rotatable rolls 21, 22 at the level of the bed mattress 2 in parallel and close relation thereto. Said rolls are connected to an electric motor 66 via driving chains 40 around the underside of the bed. A draw sheet 28 extends between the rolls across the upper side of the bed and is wound on both rolls with the patient on the draw sheet. A control box 72 operating on low voltage (e.g. 24 V) current enables the patient or a nurse to turn on the electric motor to rotate in one direction or the other. Each roller is provided with an automatic driving and free wheel clutch 34 providing for driving of each roll only in one direction, namely the direction of reeling, so that when the one roll is being driven the other is freely rotating and vice versa. Furthermore, each driving and free wheel clutch unit 34 can be manually connected and disconnected by use of an external eccentric 48.
REFERENCES:
patent: 661978 (1900-11-01), Hall
patent: 1078090 (1913-11-01), Foss
patent: 1487150 (1924-03-01), Deakins
patent: 1648996 (1927-11-01), Reibel
patent: 2429865 (1947-10-01), Bresch
patent: 2655667 (1953-10-01), Burkert
patent: 2919000 (1959-12-01), Claytor
patent: 3302219 (1967-02-01), Harris
patent: 3383717 (1968-05-01), Underwood
patent: 4270234 (1981-06-01), James
patent: 4285496 (1981-08-01), Coles
Grosz Alexander
Trettel Michael F.
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