[0001] The invention relates to a low-high nursing bed comprising a wheeled frame at the
lower part of the bed, a mattress platform at the upper part of the bed, said platform
being made up of segments, two lever systems extending on both sides of the bed between
the frame and the mattress platform for moving the matress platform in the vertical
direction between a low and a high position, said lever systems being connected to
one another by at least one connecting rod and an operating device for operating the
lever systems.
[0002] A bed of this type is known from EP-A-0183371.
[0003] Low-high beds are generally known and are frequently used in hospitals and nursing
homes. The high position is used in order to be able to treat and wash patients easily,
while the low position is the normal use position in which the patient can easily
get out of his or her bed. There is a tendency to let the people who need nursing
care stay in a hospital or nursing home for a shorter time and to let them be given
some of the nursing care at home. At home there is also a need for a bed which can
be brought into a low and a high position.
[0004] The bed known from said EP-A-0183371 is used for persons who are unable to turn or
move themselves in bed. The mattress platform comprises a center section and two side
section which can tilt with respect to the center section. The center section and
side sections cannot be easily dismantled from each other. Each lever system is connected
to both side sections as well as to the center section of the mattress platform. One
of the links of the lever systems may be disconnected so that the platform can be
caused to tilt bodily in a lateral sense. This known low-high bed cannot be dismantled
or cannot easily be brought into a form in which it can be transported to flats or
other dwellings.
[0005] The objective of the invention is to overcome this drawback and to provide a low-high
bed which is robust and servicable in the use position and can be dismanteled in a
few minutes into a number of components, which components can be stacked to give one
or more units which can be manouvered easily.
[0006] According to the invention the nursing bed indicated in the introduction is characterized
for this purpose in that the segments of the mattress platform are easily detachable
from each other, the parting line between the segments extending in a direction substantially
transverse to mattress platform, that each lever system forms part of one segment
of the mattress platform and comprises a transverse rod which is rotatably attached
to a segment and which is provided close to both ends with end levers, which have
an easily detachable hinge connection with the frame, and that the connecting rod
between the lever systems is easily detachable.
[0007] An assembled bed can be dismantled in a short time by removing the connecting rod(s),
disconnecting the mattress platform with lever systems from the frame and sliding
the segments apart.
[0008] Preferably the end levers have a transverse pin at the end, which pins each engage
as clamps in an opening which has been hollowed out in a plastic bearing block of
the frame.
[0009] US-A-4685160 discloses a low-high nursing bed comprising a mattress platform detachably
secured to a frame at the upper side of the bed, two wheeled lever systems for moving
the frame as well as the mattress platform in the vertical direction between a low
and a high position, said lever systems being connected to one another by connecting
means and an operating device for operating the lever systems. The mattress platform
is comprised of pivotally connected non-detachable segments and the frame consists
of detachable segments, each of the wheeled lever systems form part of a frame segment.
Since the position of the frame is at the upper side of the bed, this known nursing
bed construction is relative complicate and differs substantially from the bed construction
according to the present invention.
[0010] One of the lever systems can be moved between two end positions, which correspond
to the low and the high bed position, by means of a unit to be operated mechanically
(manually or motorized), electrically, pneumatically or hydraulically.
[0011] The frame can serve as support for the other components in the dismantled state if
the length of the frame is considerably shorter than the length of the bed section
but somewhat greater than the length of one bed section segment.
[0012] Clamping devices, which are detachably clamped around the connecting rod and project,
with a hinge pin, through openings in the connecting rod and intermediate levers of
the lever systems, can be used to connect the ends of the connecting rod to the lever
systems.
[0013] The invention will now be illustrated in more detail with the aid of the figures,
in which an exemplary embodiment is shown.
Figure 1 shows a perspective view of the high position of the assembled low-high bed.
Figure 2 shows a perspective view of the low position of this bed, one part being
perceived as being broken away.
Figure 3 shows a perspective view of the dismantled state of the bed.
Figure 4 shows a perspective view of dismantled components of the bed stacked on top
of one another.
Figure 5 shows a detail of the bearing mounting of the bed section on the frame on
a larger scale.
Figure 6 shows a detail of an end of a connecting rod on a larger scale.
Figure 7 shows a side view of a telescopically adjustable rod which is used in an
alternative embodiment to position the bed with the foot end higher than the head
end or vice versa.
Figure 8 is a cross-section along the line VIII-VIII in Figure 7.
[0014] The low-high bed shown comprises a bed section 1 and a mobile frame 2. As can be
seen in particular in Figure 3, the bed section 1 consists of two segments 1a and
1b which can be coupled to one another in that pins 3 of the segment 1b can be pushed
into tubular sections 4 of the segment 1a to provide a fit.
[0015] Each segment 1a, 1b has a lever system which consists of a transverse rod 5, two
intermediate levers 6 and two end levers 7. The transverse rod 5 of each lever system
is rotatably connected at both ends to a rod 8 welded to the particular segment.
[0016] In all cases two intermediate levers 6 of two segments 1a, 1b are connected to one
another by a connecting rod 9. The connection is detachable in that a clamping device
10 clamped around the connecting rod is pushed, by means of a hinge pin 11, through
openings in a fork-shaped end of the rod 9 and in an end of the intermediate lever
6 positioned in the fork. The clamping devices 10 can easily be loosened.
[0017] The frame 2 is provided at each corner with a vertical rod 12, the free end of which
has a plastic bearing block 13. This block 13 has a receiving opening 14 which merges
into a V-shaped top surface of the block 13. Each end lever 7 has a pin 7a which is
clamped detachably and rotatably in the opening 14 of a bearing block 13.
[0018] The segment 1b is provided with an operating device 15 in the form of a rod 16, which
is operated mechanically, electrically, pneumatically or hydraulically and is movable
and lockable between a pushed-in position, in which the bed section 1 assumes a high
position (Figure 1), and a pushed-out position, in which the bed section 1 assumes
a low position (Figure 2).
[0019] The connecting rods 9 serve to transmit the movement of the lever system of the segment
1b to the lever system of segment 1a.
[0020] Each segment 1a, 1b has a detachable end board 17, 18.
[0021] It will be clear that the assembled bed can be dismantled within a short time by
removing the connecting rods 9, pulling the bed section 1 upwards to release it from
the frame 2, sliding the segments 1a, 1b apart and detaching the end boards 17, 18.
These components can be combined into a small package (see Figure 4) or packed in
boxes which can be carried easily.
[0022] At the intended place of use, the components can be joined together in a very short
time to give an assembled low-high bed. No tools are needed for dismantling and assembling.
[0023] The bed according to the invention is, in particular, very suitable for loan stores
and for incidental users with little storage space (home nursing care, sickbay on
ships and the like); however, use in old people's homes, nursing homes and hospitals
can result in advantages.
[0024] The characteristics are completely identical to a normal low-high hospital-type bed,
so that all customary nursing actions are possible without subjecting patient and
nursing staff to undue strain. The bed can be supplied including a mattress in two
boxes weighing about 25 kg per box.
[0025] Figure 1 shows that the bed section segment 1a has a so-called back support section
19 which can be locked in various positions. The locking mechanism is designed such
that unlocking with the aid of the lever 20 can take place only if the back support
section is not under load.
[0026] Figures 7 and 8 show a telescopically adjustable rod which, in place of the connecting
rods 9 in the embodiment according to Figures 1 to 6 inclusive, connects the lever
systems to one another. In the alternative embodiment, each of these lever systems
has only one lever 6, the telescopic rod extending between the levers 6. The rod comprises
an inner tube 21 and an outer tube 22, each of which is provided with a welded connecting
rod 23 and 24 respectively. The inner tube has a number of notches 25 in which a locking
boss 26 can engage. This boss is hingeably connected at 27 with two lugs 28, 29, which
are welded to the outer tube 22. Between these lugs the outer tube 22 is provided
with a slit to permit passage of the boss 27. By means of a spring 30, the boss 27
can be pulled into the locking position, in which the tubes 21 and 22 are locked relative
to one another. By manually hinging the boss into the unlocked position, the tubes
21 and 22 can be slid relative to one another. When the boss is released, it will
spring into the first notch 25 which passes the slit in the outer tube. By sliding
the tubes 21 and 22 into and out of one another, the connection between the two lever
systems becomes shorter or longer and the bed assumes an oblique position with the
head end higher or lower than the foot end.
[0027] Various modifications of the construction described and drawn are possible within
the scope of the invention.
1. Low-high nursing bed comprising a wheeled frame (2) at the lower part of the bed,
mattress platform (1) at the upper part of the bed, said platform being made up of
segments (1a, 1b), two lever systems (5-7) extending on both sides of the bed between
the frame and the mattress platform for moving the mattress platform in the vertical
direction between a low and a high position, said lever systems being connected to
one another by at least one connecting rod (9) and an operating device (15) for operating
the lever systems, characterized in
that the segments (1a, 1b) of the mattress platform are easily detachable from each
other, the parting line between the segments extending in a direction substantially
transverse to the mattress platform,
that each lever system (5-7) forms part of one segment of the mattress platform and
comprises a transverse rod (5) which is rotatably attached to a segment and which
is provided close to both ends with end levers (7), which have an easily detachable
hinge connection with the frame, and that the connecting rod (9) between the lever
systems is easily detachable.
2. Low-high nursing bed according to claim 1, characterized in, that the end levers
(7) have a transverse pin (7a) at the end, which pins each engage as clamps in an
opening (14) which has been hollowed out in a plastic bearing block (13) of the frame.
3. Low-high nursing bed according to claim 1 or 2, characterized in that the length
of the frame (2) is considerably shorter than the length of the bed section (1) but
somewhat greater than the length of one bed section segment (1a, 1b).
4. Low-high nursing bed according to one of the preceding claims, characterized in
that clamping devices (10), which are detachably clamped around the connecting rod
and project with a hinge pin (11) through openings in the connecting rod (9), and
intermediate levers (6) are used to connect the ends of the connecting rod (9) to
the lever systems (5, 6, 7).
1. Höhenverstellbares Krankenbett mit einem Räderrahmen (2) am unteren und einem Matrazenträger
(1) am oberen Teil, der aus Segmenten (1a, 1b) zusammengesetzt ist, wobei sich zwei
Hebelvorrichtungen (5-7) auf den beiden Seiten des Bettes, zwischen dem Rahmen und
den Matrazenträger, zu dessen Bewegung in vertikaler Richtung zwischen einer unteren
und einer Oberen Stellung, erstrecken, und die Hebelvorrichtungen (5-7) durch mindestens
eine Verbindungsstange (9) und eine Betätigungsvorrichtung (15) miteinander verbunden
sind, dadurch gekennzeichnet, dass die Segmente (1a, 1b) des Matrazenträgers (1) leicht
voneinander trennbar sind, wobei sich die Trennlinie zwischen den Segmenten (1a, 1b)
in einer Richtung praktisch quer zum Matrazenträger (1) erstreckt, dass jede Hebelvorrichtung
(5-7) einen Teil eines Segmentes (1a, 1b) des Matrazenträgers (1) bildet und eine
Querstange (5) umfasst, die drehbar mit einem Segment verbunden ist und in der Nähe
der beiden Enden mit Endhebeln (7) versehen ist, die eine leicht trennbare Scharnierverbindung
zum Rahmen aufweist, und dass die Verbindungsstange (9) zwischen den Hebelvorrlchtungen
(5-7) leicht wegnehmbar ist.
2. Krankenbett nach Anspruch 1, dadurch gekennzeichnet, dass die Endhebel (7) jeweils
einen Querstift (7a) aufweisen, der in eine Klammer in einer Öffnung (14) eingreift,
die aus einem Kunststoff-Trägerblock (13) des Rahmens ausgehöhlt ist.
3. Krankenbett nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Länge des
Rahmens (2) bedeutend kürzer ist als diejenige des Matrazenträgers (1), jedoch etwas
länger als die Länge eines Segmentes (1a, 1b) ist.
4. Krankenbett nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass
Klammervorrichtungen (10), die lösbar rund um die Verbindungsstange (9) geklammert
sind, mit einem scharnierstift (11) durch Öffnungen in dieser hervorstehen, wobei
Zwischenhebel (6) zum Verbinden der Enden der Verbindungsstange (9) mit den Helbelvorrichtungen
(5, 6, 7) vorhanden sind.
1. Lit d'hôpital réglable en hauteur, comportant un cadre à roulettes (2) situé à
la partie inférieure du lit, une plate-forme pour matelas (1) située à la partie supérieure
du lit, cette plate-forme étant composée de segments (1a, 1b), deux systèmes de leviers
(5-7) qui s'étendent sur les deux côtés du lit entre le cadre et la plate-forme pour
matelas pour déplacer la plate-forme pour matelas en direction verticale entre une
position basse et une position haute, ces systèmes de leviers étant reliés entre eux
par au moins une tige de connexion (9) et un dispositif d'actionnement (15) pour actionner
les systèmes de leviers, caractérisé en ce que les segments (1a, 1b) de la plate-forme
pour matelas sont facilement détachables les uns des autres, ta ligne de séparation
entre les segments s'étendant dans une direction essentiellement transversale à la
plate-forme pour matelas, chaque système de leviers (5-7) fait partie de l'un des
segments du la plate-forme pour matelas et comporte une tige transversale (5) fixée
d'un segment avec possibilité de rotation et pourvue à proximité de l'une et l'autre
de ses extrémités de leviers terminaux (7) comportant une connexion articulée facilement
détachable avec le cadre, et la tige de connexion (9) entre les systèmes de leviers
est facilement détachable.
2. Lit d'hôpital réglable en hauteur selon la revendication 1, caractérisé en ce que
les leviers terminaux (7) comportent en leur extrémité un goujon transversal (7a),
ces goujons s'introduisant chacun comme dans une pince dans une ouverture (14) creusée
dans un bloc support en matière plastique (13) du cadre.
3. Lit d'hôpital réglable en hauteur selon la revendication 1 ou 2, caractérisé en
ce que la longueur du cadre (2) est bien plus courte que la longueur de la section
de lit (1) mais un peu plus grande que la longueur d'un seul segment de lit (1a, 1b).
4. Lit d'hôpital réglable en hauteur selon l'une de revendications précédentes, caractérisé
en ce que pour relier les extrémités de la tige de connexion (9) aux systèmes de leviers
(5, 6, 7) on utilise des dispositifs d'agrafage (10) qui sont agrafés de façon détachable
autour de la tige de connexion et s'introduisent au moyen d'un goujon d'articulation
(11) à travers des ouvertures pratiquées dans la tige de connexion (9), ainsi que
les leviers intermédiaires (6).