MOBILE APPARATUS FOR LIFTING PATIENTS

APPAREIL MOBILE POUR LEVER LES PATIENTS

English Abstract

ABSTRACT:
Floor supported mobile lifting apparatus for diseased or
invalid persons are known and consist of a wheel base
having a vertical column and a lifting arm projecting
therefrom, in which lifting arm said person is supported
by a lifting element. In order to improve known lifting
apparatus of above-mentioned type so that it is prevented
that the centre of gravity will be moved during the
lifting movement of the patient the column is formed of
two parts (2, 3) of which one (3) is driven by a motor
to move up and down in parallel relation to the second
part (2) or telescoping over the second part (2), whereby
the second part is secured to a wheel base and the movable
part in its free end supports the lifting arm (5).
A hoisting cable (6) is fixed at the second part and is
running in stearing means (8) over the top end of the
first part and along the lifting arm (5) and suspends
from here. The free end of the cable (6) supports the
lifting element (10) , the operation being so that when
the first part (3) of the column is projected upwards
in relation to the second part (2), the free end of the
hoisting cable will be placed in the neighbourhood of
the free end of the lifting arm (5).

Claims

The embodiments of the invention in which an exclu-
sive property or privilege is claimed are defined as
follows:
1. Floor supported mobile lifting apparatus
for diseased or invalid persons and consisting of a
wheel base having a vertical column and a lifting arm
projecting therefrom, in which lifting arm said
person is supported by a lifting element, said column
consisting of two parts of which one is driven by a
motor to move up and down in parallel relation to the
second part or telescoping over the second part,
whereby the second part is secured to the wheel base
and the movable part supports the lifting arm at is
free end, a hoisting cable fixed at the second part
and running in stearing means over the top end of the
first part and along the lifting arm and hanging
therefrom, whereby the free end of the cable supports
the lifting element, so that when the first part of
the column is moved upwardly in relation to the.
second part, the free end of the hoisting cable will
be placed in the neighbourhood of the free end of the
lifting arm.
2. Lifting apparatus according to claim 1,
wherein said hoisting cable is fixed to the second
part by being rolled in on a drum, which is secured
on the second part, said drum being fixable against
rotation.
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Description

~31~2~
MOBILE_APPARATUS FOR LIFTING PATIENTS
This invention concerns a floor supported mobile li~ting
apparatus for diseased or invalid persons and consisting
of a wheel base having a vertical column and a lifting
arm projecting therefrom, in which lifting arm said person
is supported by a lifting element.
The object of the invention is to improve known lifting
apparatus of above-mentioned type so that it is prevented
that the centre of gravity will be moved during the lifting
movement of the patient. It is also an object to increase
the freedom of the lifting apparatus between the position
of the patient beEore the lifting operation and the posi-
tion of the lifting apparatus in relation to the patient.
Further it is an object to eliminate adjustment o~ the
range in order to reach the pakient by the lifting arm.
Rnown lifting elemenks can be used as an equipment to khe
lifting apparatus according to the invenkion for supporting
the patient and there is less a risk that the patient will be
hurt by the lifting arm while at known lifting apparatus
the arm very often is very close to the face of the patient
during the lifting movement.
The invention is characterized in that the column consists
of two parts of which one is driven by a motor to move up
and down in parallel relation to the second part or kele-
scoping over the second park, whereby the second park is
secured to a wheel base and the movable part in its free
end supports the lifting arm and that a hoisting cable is
fixed at the second part and is running in stearing means
over the top end of the first part and along the lifting
arm and suspends from here, whereby the free end of the
cable supports the lifting element, the operation being
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so that when the first part of the column is projected upwards
in relation to the second part, the free end of the hoisting
cable will be placed in -the neighbourhood of the free end of
the lifting arm.
An embodiment of the invention will now be described by
reference to the enclosed drawings 1 and 2.
Fig. 1 is a side view of the lifting apparatus having the
lifting element in its lowermost position.
,
Fig. 2 is a side view of the lifting apparatus having the
lifting element in its highest position.
Enclosed Fig. 3 illustrates schematically two ways of
placing the column on the wheel base.
The lifting apparatus consists of a wheel base 1 of any known
type, The wheel base supports a vertical column, which con-
sists of two telescoping movable parts 2 and 3. The two parts
; are movable in relation to each other by an hydraulic cylinder
4. The part 2 is fixed to the wheel base and thus the bottom
end of the hydraulic cylinder is fixed to the column part 2
and the top end of the hydraulic cylinder is fixed to the
column part 3, The column part 3 carries a lifting arm 5 inits top end. A hoisting cable 6 is secured by a holder 7
placed at the top end of the column part 2 and the cable runs
upwards along the column part 3. A wheel 8 is placed at the
top end of the part 3 and the cable runs over this wheel and
along the lifting arm 5. The lifting arm 5 has in its free
end a wheel 9 and the hoisting cable is suspended from this
wheel. The hoisting cable 6,supports a lifting element 10
in which can be fastened a harness, stretcher or the like.
Different types of lifting elements can be ~astened to the
hoisting cable 6 depending on how the lifting operation of
the patient shall be carried out.

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When a person shall be lifted the column part 3 first is
moved downwards within the column part 2 by being driven by
the hydraulic cylinder ~, whereby the hoisting cable 6
automatically extends downwards from the wheel 9, which means
that the lifting element 10 is moved downwards a distance
twice as long as the column part 3 is moved into the column
part 20 The person to be lifted is secured in the harness
or the like and thereafter the.column part 3 is moved upwards,
the person hereby being lifted.
The holder 7 is preferably including a drum on which the
hoisting cable is rolled in suitable amount of turnings.
The drum 7 is fi~ed against rotating during normal use of
the lifting apparatus. A safety release is however arranged
so that the drum can run freely if that should be necessary.
Thus the hoisting cable may run freely so that the lifting
element 10 can be descended without. descending the column
: part 3.
.
Fig. 3 shows schematically the wheel base 1 seen from above,
whereby the column 2 is placed on two different places on
the wheel base.
~ .
The invention is not restricted to the shown form of the
column. Thus the column can include two parts whereby one
` part can be moved beside a second part upwards and down-
wards while the second part is supported by the wheel base.
The second column part may also include two parts placed
beside each other, whereby the movable column part is
placed between those two parts. The motor for driving the
movable part may be other than a hydraulic cylinder and
for instance an electrical en~ine. The safety releasing
: means for the fixed end of the hoisting cable can be of
any suitable type.
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Representative Drawing