DE102006062124B3 - Sickbed for shifting patient, has spindles, where part of ends of spindles is movable in longitudinal direction of sickbed when ends are vertically moved by lifting unit for moving chassis suspension in longitudinal direction - Google Patents

Abstract

The sickbed (10) has a set of spindles (26) arranged on a longitudinal side (20) and extending parallel to a plane, which is perpendicular to an upper surface of a mattress (14). A controllable slewing gear is provided for rotating the spindles. Ends (27) of the adjacently arranged spindled are individually connected with each other and are vertically moved by a lifting unit. A part of the ends of the spindles is movable in a longitudinal direction of the sickbed when the ends are vertically moved by the lifting unit for moving a chassis suspension in the longitudinal direction of the sickbed.

Description

The invention relates to a hospital bed for moving a person. The hospital bed is intended to allow the rotation of a human body about its longitudinal axis. Such a device is known from DE 34 38 956 A1 known. In this case, along a lying surface on both sides mutually parallel, rotatable about its own axis provided rotary shafts around which a cloth is placed. When the waves are turned, the cloth moves and a human body lying on the cloth is rotated. The disadvantage of this device is that it can only cause a rotation of the human body about its longitudinal axis but no other movement of a person lying in the bed.

task the present invention is to provide a hospital bed, which should be automated if possible both a rotational movement of a person lying in the hospital bed around its longitudinal axis as well as a movement of the person allows transverse to the longitudinal axis.

The The object is solved by the features of claim 1. Advantageous embodiments of Invention emerge from the features of claims 2 to 20th

According to the invention is a Hospital bed provided for moving a person, the hospital bed a bedstead, a mattress, a grate as a support for the mattress, a first longitudinal side and parallel to the first longitudinal side has a second longitudinal side. On or above the mattress are at least three in the longitudinal direction the patient bed sequential bands arranged to store the person. Furthermore, on each of the long sides at least three waves arranged, each parallel to a plane extend, which is perpendicular to the upper surface of the mattress and parallel to one of the two long sides is. Each of the bands extends from each one of the waves arranged on the first longitudinal side, where it is fixed with one of its two ends and on which it is partially wound up, to one of the second long side opposite arranged wave, on which it with the other of its two Fixed ends and on which it is partially wound.

For the up the first long side arranged waves is at least one controllable first slewing gear for turning the waves and for on the second long side arranged waves at least one independently of the first turning to controlling second rotating mechanism for rotating the shafts provided. each End of one of these waves is either alone or together with an adjacently disposed end of another one of the shafts one associated hoist independent of the other on the same long side arranged ends vertically movable. It is at least one Part of the ends of the waves also in the longitudinal direction of the hospital bed movable when the ends are moved vertically. That is achieved by the respective hoist, by means of which these ends are vertical are movable by means of a chassis in the longitudinal direction of the hospital bed is movable.

A shaft in the sense of the present invention may be a rotatable rod or roller mounted in bearings. But it may also be a cylinder which is rotatable about a fixed axis. Such a cylinder may have a drive mechanism housed inside the cylinder for rotating the cylinder. The shaft is in any case an elongate body which has one of the ends according to the invention at each of the two ends of its longitudinal extent. The end of a shaft may be the end of a physically existing axis of the shaft or the location of the axle at which it is movably connected to an axle of another shaft. An end of another shaft adjacent one end of a shaft is understood to mean a proximal end of the other shaft disposed on the same longitudinal side, which is closer than the other end of the shaft itself. The end of a bed located at the end of the bed has no adjacent one End because the other end of this wave is closer than the end of another wave. The adjacent ends of the shafts can be arranged offset to one another, as for example in 1a is shown.

Under A slewing mechanism in the sense of the invention is understood to mean all components which to rotate the shafts or a single shaft are required. Under a hoist within the meaning of the invention are all Components understood that for the vertical method of the Ends of one of the shafts are required. In an independent vertical Ending can lead to tilting movements of the waves. there there is a movement of the ends of the waves, which in the longitudinal direction the bedside component has. By the chassis can this component can be compensated by a hoist method. Under a chassis in the context of the invention, all Components understood that for the process of one of the hoists longitudinal of the hospital bed are required. The chassis can for example by be provided that the hoist mounted on a slide is. In a tilting movement associated with a vertical process of the ends the waves take place an interaction between the hoists and the landing gear.

on each other following waves on the first and / or the second longitudinal side can by universal joints or flexible connecting shafts with each other be connected so that all waves are on the same longitudinal side can be driven together the angle between the waves but by a vertical process the ends of the waves changed can be. By the independent Movability of the ends of the shafts makes it possible to parallel the waves to tilt to the plane. This not only allows the person to turn but also bent or put on. In particular, this is an uninterrupted and automatable transition from a pure rolling operation, d. H. an operation in which only the hoists and slewing gear actuated and the person around their longitudinal axis is turned into a Beugebetrieb, d. H. an operation in which only the hoists and the trolleys are operated and the person transverse to its longitudinal axis is bent, possible. That can be for a therapeutic, preferably orthopedic, in particular automated taking place, treatment be used. Furthermore, it is possible to Legs raise, so that, for example, a blood backflow to the center of the body takes place. In extreme cases, it is even possible for the person a sitting position how to create in a chair.

One Such bedside is especially for bedridden and immobile patients of great Advantage, because on the one hand by a rotational movement a bedsores avoided and on the other hand, the person in any desired position can be brought. The person can, for example, put on to feed her or to boost or boost their circulatory functions, to care for them to facilitate an assistant.

At the Operation of the hospital bed according to the invention in rolling mode all Hoists on one of the long sides only be operated synchronously, so that no tilting movement of the waves he follows. The slewing mechanisms on one of the long sides can also only synchronously operate. The slewing mechanisms on opposite long sides of the hospital bed can be operated with the same or opposite direction of rotation. In the Beugebetrieb be on the first and the second long side opposite each other Hoists operated synchronously, so that on the first long side and on the second long side opposite each other Waves the same tilting movement and if suspensions are present by means the chassis perform the same horizontal movement.

in principle can in the hospital bed according to the invention also more than three bands and a correspondingly higher one Number of waves can be provided. This is for example a additional bending movement between head and shoulders possible.

Preferably are except for a couple on the first and the second long side opposite arranged ends or adjacent ends all ends of the waves longitudinal movable in the hospital bed. The pair of ends can move vertically be, without doing so in the longitudinal direction must be moved, because the remaining ends in the longitudinal direction of the hospital bed are movable and thus the longitudinal direction of the hospital bed, the proportion of the movement of the other ends can compensate. This can simplify the construction of the hospital bed. The pair in the longitudinal direction the sickbed of non-movable ends, for example, the Located at the head of the hospital bed couple of ends of the waves be.

In A preferred embodiment of the invention is for each of Waves on the first long side an independent to be controlled first slewing gear and for each of the waves on the second Long side independently to be controlled second rotating mechanism for rotating the waves provided. Such an execution is structurally easier to provide than a design, in which the first turning several of the waves on the first longitudinal side and the second turntable more of the waves on the second longitudinal side drives. The independent one Control of each of the waves also allows further movements of the person, for example by giving a different slack the individual bands is selected. Each of the shafts can be considered as a cylinder rotatable about its longitudinal axis be educated. In this case, the first and second slew each as a housed on the inside of the cylinder, in particular on a Gearbox coupled to the rotatable cylinder, first electric motor be educated. The first electric motor can be used as an internal rotor with gearbox or as external rotor without Be formed gear.

The adjacently arranged ends of the shafts are preferably arranged offset from one another horizontally. As a result, a strong tilting movement of the waves is possible without that adjacent waves interfere spatially. The hoist can be hydraulically or electrically driven by a second electric motor. It is also possible that at least one of the lifting mechanisms, by means of which one of the ends on the first longitudinal side is vertically movable, and on the second longitudinal side oppositely arranged lifting mechanism by means of a common separable by a coupling of the respective hoists drive, in particular a second electric motor , are driven. The coupling allows an independent vertical method of one of the ends. Such a method is erforder Lich especially when rolling. The second electric motor may be disposed on the bed frame and drive a arranged on the bedside first rack or first threaded rod. However, it can also be provided a frame connected to the bed frame, on which on the first and the second longitudinal side opposite arranged in each case one of the second electric motors driven first rack or first threaded rod is provided, wherein the second electric motors are arranged on the frame , Alternatively, a frame connected to the bed frame may be provided, on each of which a first rack or first threaded rod is provided on the first and second longitudinal sides, the second electric motor being arranged on the frame, and both first arranged on the frame Racks or first threaded rods via separable by a clutch from the second electric motor drive shafts drives. In all of these embodiments, the first rack (s) or first (or) threaded bars are / are mechanically connected to the end of one of the shafts or the adjacently located ends of the shafts. This allows vertical movement of the end of the shaft or the ends of the shafts. In the case of a rack, for example, the ends of the shafts may be fixed to the rack via a bearing. For vertical movement of the ends of the entire rack can then be raised or lowered by engaging a driven by the second electric motor gear in the teeth. In the case of a threaded rod, the vertical method can be effected by fixing the ends of the shafts to the threaded rod via a bearing and moving the threaded rod vertically by a threaded nut which is mounted and driven by the second electric motor. Alternatively, the mechanical connection of the ends can take place in that the ends are mounted in a bearing having a threaded bore, in which engages the threaded rod and the bearing moves during a rotational movement of the threaded rod. The vertical movement of the ends then takes place in that the threaded rod is driven by the second electric motor in a rotational movement.

at the embodiments with the frame is the frame with the bed frame preferably connected so as to be longitudinally of the sickbed is movable. In the embodiment in which the second electric motor both first racks or first threaded rods drives together can In a simple way a synchronous drive can be ensured. The synchronous drive prevents unwanted skewing of one of the belts. The couplings allow the Rolling operation but still a separate drive of the toothed or threaded rods. In the embodiment in which each one of the first racks or first threaded rods each of one of the second electric motors is driven, no clutch is required. The drive of the first rack / s or the first threaded rod / n can by the second electric motor via an intermediate gearbox done.

The Movement of the patient transverse to its longitudinal axis may occur when flat the mattress resting on the grate only through the between the waves extending bands respectively. However, the comfort for the person can be increased by the fact that also the rust is moved together with the mattress. This may be the rust at least two positions across the entire grate and perpendicular to the first and second longitudinal side be divided, with the parts of the rust formed by Joints are pivotally connected together. The rust can with each of the hoists are reversibly connected. This is the rust so divided and each of the parts of the rust is arranged so that each of the parts of the grate is substantially parallel through the hoists moves to one of the bands moved by vertically moving the ends can be. The grate can be automated with each of the hoists, in particular by a magnetically actuated and secured Bolt, reversibly connected. For example, this can be a Connection between the first racks and the grate by one Bolts are made. This allows the person with either or moved without rust and mattress.

Preferably the hoists are mounted so pivotally that they thereby a Movement of the ends of the waves in the longitudinal direction of the hospital bed allow when the ends are moved vertically. This is a minor one Correction of a movement of the ends of the shafts in the longitudinal direction possible, if the landing gear is not complete the proportion of movement in the longitudinal direction of the hospital bed. The pivot axis is preferably located at or near the point at which a power coupling of the first rack / s or first threaded rod / s with the second electric motor he follows. Another correction in the vertical direction can thereby allows be that the hoists to the ends of the waves through a telescopic Bearings are connected. Such a warehouse may, for. B. provided thereby be that the bearing in the rack or threaded rod telescopic is stored.

When the ends of the shafts are mounted on the first racks or the first threaded rods, the first racks or first threaded rods in a lifting movement of the Waves with a person lying in the bedside attracted to the bed center. It is therefore advantageous if the frame is arranged below the grate transversely to the longitudinal direction of the hospital bed and at the left and right outside each one of the first racks or first threaded rods is guided. Through the frame better absorption of the lateral tensile forces is possible, which occur on both sides towards the center of the bed when the bands are claimed with the person to train.

Especially It is advantageous if the chassis is formed by that the frame is mounted so that it can be moved in the longitudinal direction of the hospital bed is. Each of the trolleys can each have a third electric motor are driven. As a result, the length compensation can be actively supported.

Preferably is at least one longitudinal the patient bed arranged second rack or threaded rod intended. The, in particular provided with a gear, third Electric motor is arranged on the frame and so with the second Rack or threaded rod connected, thereby causing a shift the frame along the second rack or threaded rod causes can be. This can ensure that each opposite hoists each by the same amount along of the hospital bed. The reliability of the hospital bed Operation is thereby increased. It can also each have a second threaded rod or rack on each of the long sides be firmly mounted in the hospital bed, in each of which one from one common electric motor driven nut / gear engages. This can cause jamming of the frame in the longitudinal direction the hospital bed reliable be prevented.

At the Head of the hospital bed can be a couple on the first and second long side opposed first threaded rods be provided, which with the head end Lying nen ends of the shafts each through a bearing with a threaded hole mechanically connected. The threaded hole puts together with the camp a traveling nut dar. The first threaded rods are so long that thereby a vertical movement of the associated Ends of the waves allows which allows the provision of a sitting position. In a sitting position, the stored on the bedside person moved into such a position that they are upright or at least sits almost upright. It is between the thigh and back of the Person an angle between 90 ° and Formed 110 °.

Preferably are to increase safety at the bedside sensors to detect a deviation from a given movement of the waves or the ends of the waves arranged. When detecting the deviation can then be an automatic Disconnection of the slewing gear, the hoist and the chassis done. This can cause a heat Blocked electric motors prevented and associated with it Fire hazard can be avoided.

at a preferred embodiment the hospital bed according to the invention are the consecutive bands aligned parallel to each other. This will be the construction the hospital bed further simplified.

The Invention is in the following embodiments by means of Figures closer explained. Show it:

1a a schematic representation of a plan view of a hospital bed according to the invention,

1b a schematic representation of a side view of the hospital bed according to the invention,

2a to 2f a schematic representation of a cross section through the hospital bed according to the invention in various operating states,

3a to 3h a schematic representation of a side view of the hospital bed according to the invention in different operating conditions and

4a , b is a schematic representation of a side view of the hospital bed according to the invention in further operating states.

1a schematically shows a hospital bed 10 with a bed frame 12 and a mattress 14 in supervision. To simplify the illustration parts of the hoists and the chassis are not shown here. On the first long side 20 and on the second long side 22 of the hospital bed 10 each are three in the longitudinal direction of the hospital bed 10 successive waves 26 staggered to each other. The staggered arrangement has the advantage that the waves 26 Do not touch each other during a tilting movement and thereby hinder. The adjacent ends 27 the waves 26 are at successive waves 26 in one for the storage of two shaft ends 27 trained camp 28 and at one end of a wave 26 to which there is no further wave 26 connects, in a to the storage of a shaft end 27 trained camp 30 stored. The waves 26 are here each as a to a fixed axis 26a twist good cylinder 26b educated. In front of the axles 26a here are only the ends, which at the same time the ends 27 the waves 26 represent, shown. From each one of the waves 26 on the first long side 20 to one opposite on the second long side 22 arranged wave 26 extends on or above the mattress 14 arranged moving band 24 for storing a person 11 , The ends of the bands 24 are each at one of the waves 26 fixed and partly on this wave 26 wound.

1b shows that in 1a illustrated bedside 10 in the side view with the bed frame 12 and the mattress 14 , The cylinders 26b the waves shown here 26 each by one inside the cylinder 26b arranged and not shown here, designed as an internal rotor, driven first electric motor. The first electric motor is by a transmission with the toothing having inner wall of the cylinder 26b toothed. In the 1b each shown hoists consist of a second electric motor 32 , which is a first threaded rod 33 or a first rack 34 drives, and a warehouse 28 for storage of two shaft ends 27 or another camp 30 for storage of a shaft end 27 , The first threaded rod 33 or first rack 34 allows vertical movement of the shaft ends 27 by attacking the first threaded rod 33 or first rack 34 in stock 28 or at the further camp 30 , Apart from the head 37 of the hospital bed 10 arranged hoists continue to comprise the hoists one transverse to the longitudinal direction of the hospital bed 10 arranged and in 1a for clarity not shown frame 35 , At the left and right outside of the frame 35 is one of the first racks 34 guided and is by the second electric motor 32 standing on the frame 35 mounted, driven. This is the first rack 34 lifted or lowered. The frame 35 itself is by means of a third electric motor 36 along a second rack 38 moved, thereby compensating for differences in length, which by a tilting movement of the waves 26 arise.

The function of the hospital bed 10 is through the 2a to 2f and 3a to 3h clarified.

From the hospital bed 10 are in the 2a to 2f to simplify the presentation, only the mattress 14 , the ribbon 24 and the waves 26 shown. The back of the person 11 is represented by a straight line and its ventral side by a curved line. 2a shows the position of the waves 26 and the band 24 with conventional use of the hospital bed 10 , The waves 26 can also be below the top of the mattress 14 be arranged. By lifting the waves vertically 26 by a vertical process of the ends 27 can by means of the tape 24 the function of a bed rail can be realized as it is in 2 B is shown. 2c shows the position of the waves 26 to the person 11 to turn completely or partially. The person 11 can z. B. from a supine position in a stomach or side position and turned back. Here are the waves 26 on the first long side 20 of the hospital bed 10 raised and on the second long side 22 lowered. The ribbon 24 is doing by appropriate rotation of the waves 26 in the direction of the waves 26 on the first long side 20 of the hospital bed 10 postponed. As in 2d shown, the waves can 26 alternatively also on the second long side 22 be raised to a full or partial rotation of the person 11 , z. B. in a lateral position to allow. 2e shows waves raised on both sides 26 and an intervening band 24 , This allows the person 11 be raised to facilitate treatment by a helper for the helper. Furthermore, in this position, for example, a tub 40 on the mattress 14 under the person 11 be pushed. After that, the band can 24 and thereby the person 11 in the tub 40 be lowered. Is in 2f shown. The person 11 can be bathed and washed by it and even in the tub 40 to be turned around.

In the 3a to 3h are the waves 26 only as a single stroke and the bearings 28 and other camps 30 each represented as rectangles. In all in the 3a to 3h The situations depicted will be the person 11 only by means of the bands 24 emotional. The mattress 14 remains unchanged. In an alternative embodiment, however, follows the mattress 14 the movements of the bands 24 by placing one at the positions of the bearings 28 divided by swiveling joints divided grate 44 at these positions and at the head end 37 as well as at the foot 42 together with the camps 28 and the other camps 30 is moved vertically.

3a shows a schematic view of a side view of the 2a illustrated situation. 3b shows one at the head end 37 raised another camp 30 and 3c at the head end 37 further raised further bearings 30 and in the knee area of the person to be stored 11 raised bearing 28 , 3d shows a state of the hospital bed according to the invention 10 as it is favorable for the storage of a patient with a herniated disc. 3e to 3g show further states of the hospital bed according to the invention 10 , In 3h is a hospital bed according to the invention 10 shown in sitting position. Here is a particularly wide vertical displacement of the head 37 of the hospital bed 10 arranged ends 27 the waves 26 erforder Lich. From the 3a to 3h it becomes clear that except at the head 37 located further camps 30 with a vertical movement of the bearings 28 and the other camp 30 at the same time a horizontal movement of these bearings 28 and this further camp 30 must take place.

Unless in the case of the bending movement of the person 11 the mattress 14 the movements of the bands 24 follows, the waves can 26 on the first 20 and the second longitudinal side 22 of the hospital bed 10 be slightly raised to the person before the beginning of the flexion movements 11 to ensure a secure fit and a lateral falling out of the hospital bed 10 to prevent. Preferably, the rust 44 with the mattress 14 only then by means of a magnetically secured bolt with the first threaded rods 33 or first racks 34 coupled and initiated the bending movement.

4a shows a highly schematic side view of a hospital bed according to the invention 10 , The waves 26 , The hoists and the chassis are not shown for clarity. 4a shows the bed frame 12 with a rust 44 and one on the grid 44 resting mattress 14 , Camps 28 for storage of two shaft ends 27 and the other camps 30 for storage of a shaft end 27 here are reversible with the rust 44 connected. This makes it possible by pressing the hoists the rust 44 including mattress 14 so far as to raise the care, care and care of one on the mattress 14 lying person 11 for a helper is facilitated. Such an operating state is in 4a shown. 4b shows the hospital bed 10 with the shelf lowered to normal height 44 ,

10

sickbed

11

person

12

bedstead

14

mattress

20

first long side

22

second long side

24

tape

26

wave

26a

axis

26b

cylinder

27

The End a wave

28

camp for storage of two shaft ends

30

additional Bearing for storage of a shaft end

32

second electric motor

33

first threaded rod

34

first rack

35

frame

36

third electric motor

37

head

38

second rack

40

tub

42

foot

44

rust

Claims (20)

Hospital bed ( 10 ) for moving a person ( 11 ), whereby the hospital bed ( 10 ) a bed frame ( 12 ), a mattress ( 14 ), a rust ( 44 ) as a support for the mattress ( 14 ), a first longitudinal side ( 20 ) and parallel to the first longitudinal side ( 20 ) a second longitudinal side ( 22 ), wherein on or above the mattress ( 14 ) at least three longitudinally of the hospital bed ( 10 ) successive bands ( 24 ) for storing the person ( 11 ) are arranged, wherein on each of the long sides ( 20 . 22 ) at least three waves ( 26 ), each extending parallel to a plane perpendicular to the upper surface of the mattress (FIG. 14 ) and parallel to one of the two longitudinal sides ( 20 . 22 ), each of the bands ( 24 ) of one of each of the first longitudinal side ( 20 ) arranged waves ( 26 ), where it is fixed with one of its two ends and on which it is partially wound, to one of the on the second longitudinal side ( 22 ) arranged opposite shaft ( 26 ), at which it is fixed with the other of its two ends and on which it is partially wound, extends, for which on the first longitudinal side ( 20 ) arranged waves ( 26 ) at least one controllable first slewing gear for rotating the shafts ( 26 ) and for those on the second long side ( 22 ) arranged waves ( 26 ) at least one independent of the first rotating mechanism to be controlled second rotating mechanism for rotating the shafts ( 26 ), each end ( 27 ) one of these waves ( 26 ) either individually or together with an adjacently arranged end ( 27 ) another of the waves ( 26 ) by means of one associated hoist independently of the other on the same longitudinal side ( 20 . 22 ) arranged ends ( 27 ) is vertically movable, wherein at least a part of the ends ( 27 ) of the waves ( 26 ) also in the longitudinal direction of the hospital bed ( 10 ) is movable when the ends ( 27 ) are moved vertically by the respective hoist, by means of which these ends ( 27 ) are vertically movable, by means of a chassis in the longitudinal direction of the hospital bed ( 10 ) is movable. Hospital bed ( 10 ) according to claim 1, wherein, except for one pair, on the first ( 20 ) and second longitudinal side ( 22 ) opposite ends ( 27 ) or adjacent ends ( 27 ) all ends ( 27 ) of the waves ( 26 ) in the longitudinal direction of the hospital bed ( 10 ) are movable. Hospital bed ( 10 ) after one of vorge claims, wherein for each of the waves ( 26 ) on the first longitudinal side ( 20 ) an independently controlled first slewing gear and for each of the shafts ( 26 ) on the second longitudinal side ( 22 ) an independently controlled second rotating mechanism for rotating the shafts ( 26 ) is provided. Hospital bed ( 10 ) according to claim 3, wherein each of the shafts ( 26 ) as a cylinder rotatable about its longitudinal axis ( 26b ) is formed and the first and second rotating mechanism each as a on the inside of the cylinder ( 26b ) accommodated, in particular via a transmission to the rotatable cylinder ( 26b ) coupled, the first electric motor is formed. Hospital bed ( 10 ) according to claim 4, wherein the first electric motor is designed as an external rotor without gear or as an internal rotor with gear. Hospital bed ( 10 ) according to one of the preceding claims, wherein the adjacently arranged ends ( 27 ) of the waves ( 26 ) are arranged offset from one another horizontally. Hospital bed ( 10 ) according to one of the preceding claims, wherein the lifting mechanism is hydraulically or electrically in each case by a second electric motor ( 32 ) or at least one of the hoists, by means of which one of the ends on the first longitudinal side ( 20 ) is vertically movable and that on the second longitudinal side ( 22 ) arranged opposite hoist by means of a common separable by a coupling of the respective hoists drive, in particular a second electric motor ( 32 ), are driven. Hospital bed ( 10 ) according to claim 7, - wherein the second electric motor ( 32 ) on the bed frame ( 12 ) and one at the hospital bed ( 10 ) arranged first rack ( 34 ) or first threaded rod ( 33 ) or - whereby one with the bed frame ( 12 ), in particular in the longitudinal direction of the hospital bed ( 10 ) movable, connected frame ( 35 ), at which on the first ( 20 ) and the second longitudinal side ( 22 ) arranged opposite one each of one of the second electric motors ( 32 ) driven first rack ( 34 ) or first threaded rod ( 33 ) is provided, wherein the second electric motors ( 32 ) on the frame ( 35 ) are arranged, or - one with the bed frame ( 12 ), in particular in the longitudinal direction of the hospital bed ( 10 ) movable, connected frame ( 35 ), at which on the first ( 20 ) and the second longitudinal side ( 22 ) arranged opposite each one a first rack ( 34 ) or first threaded rod ( 33 ) is provided, wherein the second electric motor ( 32 ) on the frame ( 35 ) and both first racks ( 34 ) or first threaded rods ( 33 ) via a clutch from the second electric motor ( 32 ) drives separable drive shafts, wherein the first rack (s) ( 34 ) or first threaded rods ( 33 ) so with the end ( 27 ) one of the waves ( 26 ) or the adjacent ends ( 27 ) of the waves ( 26 ) is / are mechanically connected, that thereby a vertical movement of the end ( 27 ) the wave ( 26 ) or the ends ( 27 ) of the waves ( 26 ). Hospital bed ( 10 ) according to claim 8, wherein the drive of the first rack / n ( 34 ) or the first threaded rod (s) ( 33 ) by the second electric motor ( 32 ) via an intermediate gearbox. Hospital bed ( 10 ) according to one of the preceding claims, wherein the rust ( 44 ) at least at two positions across the entire grid ( 44 ) and perpendicular to the first ( 20 ) and second longitudinal side ( 22 ), whereby the parts of the grate formed thereby ( 44 ) are pivotally connected to each other by joints, wherein the rust ( 44 ) can be reversibly connected to each of the hoists, the grate ( 44 ) and each of the parts of the grate ( 44 ) is arranged so that each of the parts of the grate ( 44 ) by the hoists substantially parallel to one of the by a vertical procedure of the ends ( 27 ) moving bands ( 24 ) can be moved. Hospital bed ( 10 ) according to claim 10, wherein the rust ( 44 ) Automatically with each of the hoists, in particular by a magnetically operated and bolt to be secured, can be reversibly connected. Hospital bed ( 10 ) according to any one of the preceding claims, wherein the hoists are mounted so pivotally that they thereby movement of the ends of the shafts ( 26 ) in the longitudinal direction of the hospital bed ( 10 ), when the ends ( 27 ) are moved vertically. Hospital bed ( 10 ) according to one of the preceding claims, wherein the hoists are connected to the ends ( 27 ) of the waves ( 26 ) are connected by a telescopic bearing. Hospital bed ( 10 ) according to one of claims 8 to 13, wherein the frame ( 35 ) below the grate ( 44 ) transverse to the longitudinal direction of the hospital bed ( 10 ) is arranged and at the left and right outside each one of the first racks ( 34 ) or first threaded rods ( 33 ) is guided. Hospital bed ( 10 ) according to one of claims 8 to 14, wherein the chassis is formed by the fact that the frame ( 35 ) is mounted so that it in the longitudinal direction of the hospital bed ( 10 ) is movable. Hospital bed ( 10 ) according to one of the preceding claims, wherein each of the running gears is in each case driven by a third electric motor ( 36 ) is driven. Hospital bed ( 10 ) according to claim 16, wherein at least one along the hospital bed ( 10 ) arranged second rack ( 38 ) or threaded rod is provided and, in particular provided with a gear, third electric motor ( 36 ) on the frame ( 35 ) and so with the second rack ( 38 ) or threaded rod, thereby causing a displacement of the frame ( 35 ) along the second rack ( 38 ) or threaded rod can be effected. Hospital bed ( 10 ) according to one of claims 8 to 17, wherein at the head end ( 37 ) of the hospital bed ( 10 ) a couple on the first ( 20 ) and second longitudinal side ( 22 ) are opposite the first threaded rods ( 33 ) is provided, which with the at the head ( 37 ) ( 27 ) of the waves ( 26 ) are each mechanically connected by a bearing with a threaded bore, wherein the first threaded rods ( 33 ) are so long that thereby a vertical movement of the associated ends of the waves ( 26 ), which enables the provision of a sitting position. Hospital bed ( 10 ) according to one of the preceding claims, wherein sensors for detecting a deviation from a predetermined movement of the waves ( 26 ) or the ends ( 27 ) of the waves ( 26 ) are arranged, wherein the detection of the deviation is an automatic shutdown of the slewing, the hoist and the chassis. Hospital bed ( 10 ) according to one of the preceding claims, wherein the successive bands ( 24 ) are aligned parallel to each other.