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(11) | EP 0 267 888 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Patient lifting device |
| (57) A patient lifting device shows an upper column part (16) which is displaceable relative
to a lower column part (14) by means of a jack (18) driven from a chargeable battery
(38) via an electric motor (20). A lifting platform (24) is arranged on a carriage
(26) which is suspended in the one end of a chain (30) running over a wheel (32) journalled
in the upper column part (16) and with its other end (34) is anchored to the lower
column part (14). By this the lifting height of the platform (24) becomes twice as
large as the stroke of the jack (18). A gas spring (36) is arranged in parallel with
the jack (18) to unload the force which acts on the jack (18) on raising and lowering
of a patient. |