DE4106302C1 - Hospital bed with composite bed frame - which is slidably, longitudinally fitted to mattress frame by backrest motion - Google Patents

Abstract

The hospital bed lying surface consists of a backrest, centre, thigh, and leg parts arranged on a tiltable, height-adjustable mattress frame which can be locked at desired height and/or angle. Adjacent parts of the lying surface can pivot lockably round parallel axes. The entire lying surface frame (5) adjusts longitudinally on the mattress frame (4) so that, when the backrest (6) is swung up (arrow A) the frame moves towards the head, and when the backrest swings down (B), the frame slides towards the foot. ADVANTAGE - Simple design for improved comfort.

Description

genus

The invention relates to a sickbed with an egg ner backrest, a middle part, a thigh part and a lower leg section of existing lying surface to accommodate the patient and bedding one height and incline adjustable compared to the floor ren and in its respective height and / or angle Lung lockable mattress frame is arranged, wherein the adjacent lying surface parts each Swiveling movement over axes running parallel to each other Lich and also in the desired inclination are arranged lockable.  

Such a bed is part of the prior art.

With such beds, it is disadvantageous felt that the patient lying in bed when opening swiveling the backrest towards the foot partly shifted, that is, in a way "compressed". This is partly due to the fact that the bedding resting on the lying surface parts, as for example play mattress and sheets, when opening and closing Swiveling down change their position, for example because Bedding has a certain thickness and thus the lever arm, with which the backrest acts on the patient, ver enlarged. Thighs and lower legs are also there shifted accordingly, which is particularly the case with old ones People, but also unsuspecting patients in need of care Appropriate and annoying.

From DE-PS 33 09 580 is a sick bed with one adjustable by folding up about a swivel axis Back part of the bed frame known, the  Swing axis of the back part in an approximately horizontal right guide is slidably arranged. The back part has a protruding beyond its swivel axis, in Movable in the longitudinal direction of the lying surface frame sled-like extension piece that at high fold the back part to enlarge the leg part the lying surface serves. Here, a device with an auxiliary driving force or an energy storage to Er easier movement of the swivel axis and the extension piece of the back part when ver be provided in one or both directions. Unless the bed is over with one on the back a handlebar attacking around a fixed pivot axis rotatable lever or angle lever for adjusting the Back is provided, it is also proposed that the lever or angle lever via an additional handlebar also move it in an approximately horizontal direction baren swivel axis of the back part or on its extension rungsstück attacks, such that when adjusting the Back part at the same time with its folding movement the displacement of the pivot axis of the back part and there with the extension of the in an almost horizontal position remaining leg portion of the lying surface is effected. The Point of attack of the additional handlebar on the lever or  Angle lever should be using an elongated hole or a Row of holes on the angle lever or on the handlebar in ver binding with a hinge pin can be selected. On the front The end of the extension piece becomes an oblique guide sheet to secure the underflow of the lying surface in the Leg area of the lying surface frame through the extension attached piece.

From DE-OS 38 08 408 is a patient bed with multiple parts known lying surface, in which the lying surfaces parts are arranged on a frame and from a back backrest, a thigh rest, one hinged to it th lower leg rest and one in the frame level the middle part, the thigh rest and / or the backrest with a cross bar in the Longitudinal bars of the frame provided slideways is displaceably fixed, also an adjusting device tion is provided with an actuator that with egg nem end with a tab of the thigh rest or Backrest is articulated and one at which Frame articulated handlebar on the thigh rest or the backrest is pivotally connected. The Ver actuator is supposed to have a bearing at its other end bock be articulated on a parallel to one  Longitudinal spar of the frame arranged and festge on this placed guide rod is arranged to be longitudinally displaceable, where a coupling on the one hand on the bearing block and others is connected to the cross beam.

From DE-OS 38 12 262 a sick bed is adjusted bar backrest with one of a chassis known frame, the backrest by one in or rotatable horizontal axis fixed to the frame, the backrest consisting of a support and a bearing part exists, the support with the on the axis closed bearing part is connected. It's supposed to be a Ge shoots are provided with which the distance of the support to the axis with increasing swivel angle of the backrest can be enlarged.

From DE-OS 38 17 184 a sick bed is adjusted bar backrest with one of a chassis gene known frame, the one edition and an existing backrest around an in or on Frame fixed horizontal axis rotatable, the support connected to the bearing part connected to the axis is and wherein a transmission is provided with which the  Distance of the support to the axis with increasing swivel kel of the backrest can be enlarged. The gearbox is supposed to from one with the support on the one hand and the axis on the other hand connected compression spring and one on the location and the frame specified cable pull, the Rückge via a deflection roller arranged on the handlebar leads, the handlebar against the contact surface directionally connected to the axis.

From DE-PS 20 23 104 is a sick bed with anstell bar backrest previously known, when starting the Backrest the total length of the bed can be shortened is. For this purpose, the one with the adjustable backrest connected mattress frame slidably on a frame be arranged carrier. This is accomplished by that the mattress frame with the help of roller and glide elements is slidably mounted on the frame support. The backrest can be swiveled via a on the frame support fixed support positively guided. Doing the back lean over sliding or rolling elements on the standpipe of the Forced headboard. The mattress frame points to Angling the lying surface on a joint that with a  Locking bolt is equipped and with a fork-shaped in operative connection with the swivel lever of the frame support stands.

From EP-PS 01 53 362 is an armchair and / or bed device known with a tripod, a frame, by one or more first swivel arms in the Height adjustable and movable with respect to the tripod, at least one seat and / or lying part, which by one or more second swivel arms in height is adjustable movable with respect to the frame, wherein power-developing devices on the frame to influence solution of the swivel arms should be provided. The frame should be essentially like one from all sides be closed container, the power-developing devices in the container are brought. The swivel axes for the swivel arms should through wall parts of the container and into it Extend inside this.

The applicant is also previously aware of a sick bed at which the lying surface frame from an inclination adjustable ren and also in the desired inclination position  lockable backrest and a hori zontal axis adjoining one-piece second couch area frame part exists. Both backrest as well the second one-piece bed surface consists in the we mainly from a profile frame and perforated lead chen. When swiveling the backrest upwards, the Ab stood between the backrest and the one on it subsequent second one-piece bed frame enlarged and ent when swiveling the backrest down speaking reduced. The one between the backrest and second gap surface part resulting gap distance bridged by a third sheet metal part, which is in the Swing up and down under the second one-piece Part of the lying surface is shifted or removed from under it moves.

task

The invention has for its object a bed of the generic type with regard to Comfort is essential with simple constructive means to improve.  

solution

The object is reproduced by in claim 1 characteristics resolved.

Some advantages

When designing a hospital bed according to the invention the patient is no longer "compressed", but retains it rather a comfortable lying and / or sitting position at, since the entire lying area, consisting of back back, middle, thigh and lower leg part in Longitudinal axis direction of the patient bed accordingly is gert. For example, if the backrest is turned upwards swivels, the entire lying surface is directed towards the head-side bed main body moved, while the Swivel the backrest down to match the lying surface moving towards the foot-side bed body becomes. This up and down swiveling he can motor follow, for example by linear drives such as piston-Zy linder units alternately printed on both sides medium pressure, spindle drives or Electric drives or combined drives, from these  Units, or also by blockable gas pressure feathers.

Since the units for such beds, so Rüc backrest, middle section, thigh and lower leg section are already available with known bedding and it is also known how these parts too are moved and / or discontinued, the In principle, the constructions of previously known beds are retained be. Suitable only on the mattress frame Guides are arranged to place the bed surface in To store and guide the longitudinal axis of the bed ren. The dimensions of previously known hospital beds not changed for the users.

Another major advantage is that the care personnel in the handling of patients according to the invention beds do not have to be specially instructed, because the Handling remains as before. The longitudinal shift Exercise of the lying surface frame takes place during the up and down the backrest swings automatically. That care staff willingly does not need to influence this to take incorrect operation ren.  

In addition, the design effort is forfeited the solution of the invention is extremely small. Ir any telescopic parts on the bed frame, that have to be moved or pulled out are at dispensing with the bed of the invention.

Further inventive embodiments

When configured according to claim 2, the Guides for the lying surface parts to save space in the Arrange the lateral projection of the mattress frame and extend the same in the longitudinal axis direction.

An embodiment according to Pa is particularly advantageous claim 3, in which the guides as U-profiles are trained.

In the embodiment according to claim 4, the moto drive for the thigh part moving on Lying surface frame arranged.

Another advantageous embodiment is in Pa Claim 5 described.  

Claim 6 relates to a very advantageous construct tion.

In the drawing, the invention is - partly schematic - illustrated by an embodiment. Show it:

Figure 1 is a hospital bed in perspective, partially broken and incomplete, with horizontally arranged lying surface parts.

Fig. 2, the lying surface parts of the visible from Figure 1 bed with the back pivoted back and kinked thigh and lower leg part, partly shown broken, partly in section.

. Fig. 3 is seen in FIG 2, the sickbed when on Windwärts pivoted back and accessible in the Central Waa arranged, thigh and lower leg portions;

Fig. 4, the visible from Fig. 1 sick bed, partially shown in cross section, with horizontally arranged lying surface parts, accordingly Fig. 1;

Fig. 5 shows a detail from Fig. 2 in the region of the upper leg and lower leg part, partly in cross section, partly in the view.

The reference numeral 1 designates a chassis which consists of profiled tubes and has rollers 2 in its corner regions, of which at least one pair of such rollers 2 is designed such that it can be braked on one end face. From Fig. 1, a double lever 3 can be seen, which can be operated with the foot and via which the pair of rollers arranged on the water front side can be blocked and released as.

On the chassis 1 , a mattress frame 4 can be pivoted up and down in a conventional manner by means of levers (not shown ) and can also be tilted relative to the floor in different angular positions and can also be arranged in the desired desired height and / or pivoting position. The mattress frame 4 can be operated by a motor in the manner described.

As the sectional views of FIGS. 2, 3 and 4 let him know, the mattress frame 4 is constructed from cross-sectionally approximately rectangular profile tubes.

The mattress frame 4 carries at its front end areas not shown headboards, which can be designed and arranged in a usual manner.

On the mattress frame 4 is a total designated by the reference numeral 5 lying surface net, which consists of a backrest 6 , a middle part 7 , egg nem thigh part 8 and a lower leg part 9 be.

The backrest 6 is connected via a swivel axis 9 a to the middle part 7 , the middle part 7 via a swivel axis 10 to the thigh part 8 and the thigh part 8 via a swivel axis 11 to the lower leg part 9 in a vertical plane.

The longitudinal axes of the pivot axes 9 a, 10 and 11 run parallel to one another and parallel to the floor on which the rollers 2 are arranged to be movable. In addition, the pivot axes 9 a, 10 and 11 can only be arranged on the long sides of the mattress frame 4 and be mounted in the latter via bearings. From Fig. 1 it can be seen, for example, that the pivot axis 9 a consists only of short pivot axis parts which are arranged in the region of the longitudinal boundaries of the mattress frame 4 .

With the reference numeral 12 , a mattress holder is designated net.

Below the backrest 6 and parallel to one another and at a distance from each other, two curvilinear parts 13 and 14 are arranged, which are supported with their convex outwardly curved curved paths 15 and 16, respectively, against an abutment roller 17 and 18 . The abutment rollers 17 and 18 are each arranged with their axes between two spaced and parallel to one another duri fenden bearing lugs 19 , 20 and 21 , 22 , which in turn are firmly connected to a below the Liegeflächenrah mens 5 extending cross members 23 , the the mattress frame 4 is fixed. In each pivoting position of the backrest 6 , the spa venbahnen 15 and 16 are supported against the roller bearings 17 and 18 associated with them (FIGS . 2, 3 and 4).

Below the mattress frame 4 , two motorized drives 24 and 25 are arranged, which are mainly designed as linear motors. The motor drives 24 and 25 can, for example, also be designed as electric drives, electrohydraulic drives, with pressure medium pressure alternately acting on both sides of piston-cylinder units, as spindle drives, also in a mixed construction.

The motor drive 24 is linearly arranged on its one part 26 via an axis 27 on two spaced-apart bearing legs 28 , 29 ( FIG. 1). The bearing legs 28 and 29 are connected to a cross member 30 below the zenrahmens 4 frame with this. The other, telescope-shaped relative to the part 26 longitudinally adjustable part 31 is coupled via a parallel to the axis 27 duri fende axis 32 with two spaced, parallel to each other running bearing levers 33 and 34 pivotally coupled. The bearing levers 33 and 34 just extend if down to the floor like the bearing legs 28 and 29th The bearing levers 33 and 34 are connected to the central part 7 in one piece, that is to say firmly.

Of the motor drive 25 , the one telescopic part 35 is connected to the central part 7 via a swivel axis 36 , which is mounted in spaced bearing approaches 37 and 38 , respectively. The bearing lugs 37 and 38 are fixedly connected to the central part 7 , while the other telescopic part 39 is connected via a pivot axis 40 to two spaced, mutually parallel bearing plates 41 , 42 , which are firmly connected to the thigh part 8 .

The motor drive 25 thus serves for actuation, i.e. kinking and bringing the upper and lower leg parts 8 and 9 into the horizontal position, while the motor drive 24 for longitudinal adjustment of the entire lying surface frame 5 with respect to the bed heads (not shown) and thus indirectly also for the opening - And from pivoting in the direction A or B of the backrest 6 is used.

With the lower leg part 9 , a rack is arranged on both sides, of which only one rack in Fig. 5 is provided with the reference numeral 43 . The racks 43 are each coupled to the lower leg part 9 so as to be pivotably movable in the vertical plane via a pivot axis 44 . The rack 9 has a plurality of tooth-shaped recesses, of which only the tooth-shaped recesses 45 , 46 and 47 are shown in FIG. 5. The other, not shown rack on the other side of the bed is designed accordingly.

With the reference numeral 48 is a pivotable about an axis 49 in the vertical plane on the lower leg part 9 angeord net abutment part, which can be arranged in each case coaxially arranged tooth-shaped recesses 45 , 46 or 47 of the two racks 43 ( Fig. 5) to lock the lower leg part 9 and thus indirectly also the thigh part 8 to each other in the desired angular position (high position). The racks 43 are mounted in the area of their lower, the mattress zenrahmen 4 facing end portions on rollers in a link guide. Of these roles from Fig. 5, only the roller 50 of the rack 43 Darge provides and slidably arranged in a guide 51 in the longitudinal axis direction of the bed. On the opposite side of the hospital bed, not shown, there is also a backdrop guide for the roller of the other rack, which is also located there and not shown. The backdrop tours, e.g. B. the link guide 51 are formed from U-profiles ( Fig. 1). The U-profiles are arranged such that their legs are directed towards each other, that is, point to the center of the bed, such that the connecting web for the U-legs runs orthogonally to the surface of the mattress frame ( Fig. 1).

The abutment part 48 can be unlocked by a hand lever. On each long side of the hospital bed there can be such a hand lever, via which the abutments, if necessary integrally connected, can be unlocked for the two racks 43 from each long side of the hospital bed. The abutment can, if necessary, also from a central point, from which the motor drives 24 and 25 are to be operated, centrally controllable, for. B. trains by Bowden, be (not shown).

With the reference numerals 52 and 53 longitudinal guides are characterized, which also consist of U-rails, the legs of which face each other, such that the connec tion web of the respective legs runs vertically, that is orthogo nal to the surface of the mattress frame, so that the U- Legs are directed towards the longitudinal center of the hospital bed. Between the U legs, the middle part 7 , z. B. by sliding friction, but also by rolling friction, in the longitudinal axis direction of the bed. For this purpose, spars not shown can be connected to the central part, which are guided between the U-legs of the longitudinal guides 52 and 53 .

The longitudinal guides 52 and 53 extend in the central area of the bed over a certain Längenbe rich same to the area of the backrest 6 and approximately to the central area and beyond the thigh part 8th

The mode of operation of the patient bed according to the invention is as follows:
Assume that the motor drives 24 and 25 are linear motors. Then these linear motors can be actuated by switches arranged on the long side of the bed, either separately or together. If a joint actuation takes place, this results in an extension of the telescopically adjustable part 31 of the motor drive 24 . Driving out of the telescopic part 31 moves over the bearing levers 33 and 34, the central part 7 and thus also the backrest 6 connected to it via the pivot axis 9 a. Since the cam bearing parts 13 and 14 are supported on the counter bearing rollers 17 and 18 , this has an upward pivoting of the backrest 6 , that is, a pivoting in the direction A ( FIG. 2). The motor drive 25 moves with it, since it is connected to the central part 7 .

If the motor drive 25 is unlocked simultaneously with the motor drive 24 , then the telescopic part 35 also extends and performs a pivoting movement about the pivot axis 36 . At the same time around axis 40 . Since the axis 40 with the Lagerla's 41 and 42 and these in turn are rigidly connected to the upper leg part 8 , this has a kinking of the thigh part upwards when extending ( Fig. 5), while the lower leg part 9 simultaneously downwards moves ( Fig. 5) and thereby performs a pivoting movement about the pivot axis 11 in the vertical plane. If the unlocking is released, the movement of the backrest 6 , middle part 7 , upper and lower leg parts 8 and 9 stops. The parts are then locked against each other in the desired pivot position.

When the motor drives are unlocked again, the lying surface parts 6 , 8 and 9 can be moved back into the horizontal position ( FIG. 4) or into any other intermediate angle position and locked there.

The swiveling down takes place in a corresponding manner.

If only the backrest is to be actuated ( FIG. 3), then only the motor drive 24 is started. The lying surface frame 5 then moves in the direction X - which it also does when all the lying surface parts 6 , 7 , 8 and 9 are to be adjusted relative to one another, as is illustrated in FIG. 2.

When the backrest 6 is pivoted downward, the lying surface frame 5 moves in the Y direction.

In all cases, precautions are taken so that the patient resting in bed cannot be squeezed over the bedding (not shown). Contrary to the state of the art technology is thus in the invention when adjusting the lying surface parts in any angular position to each other, even if only the backrest 6 should be adjusted, the entire bed surface frame 5 is shifted relative to the mattress frame 4 , in the X or Y direction .

By not shown control of the motor drives 24 and 25 and the motor drive's not shown for the height and inclination adjustment of the mattress frame 4 , it is also possible to simultaneously tilt the mattress frame about a horizontal axis and the lying surface parts 6 , 7 , 8th To control 9 in a sitting position.

Reference symbol list

1 chassis
2 rolls
3 double levers
4 mattress frames
5 bed frame
6 backrest
7 middle section
8 thigh part
9 lower leg part
9 a swivel axis
10 swivel axis
11 swivel axis
12 mattress holders
13 cam bearing part
14 cam bearing part
15 curved track
16 curved track
17 abutment roll
18 abutment roll
19 bearing approach
20 bearing approach
21 bearing approach
22 bearing approach
23 crossbar
24 motor drive
25 drive, motorized
26 part of the drive 24
27 axis
28 bearing legs
29 bearing legs
30 crossbar
31 part, telescopic
32 axis
33 bearing lever
34 bearing lever
35 telescopic part
36 swivel axis
37 bearing approach
38 bearing approach
39 telescopic part
40 swivel axis
41 bearing bracket
42 bearing bracket
43 rack
44 swivel axis
45 recess, tooth-shaped
46 recess, tooth-shaped
47 recess, tooth-shaped
48 abutment part
49 axis
50 roll
51 Scenic tour
52 longitudinal guidance
53 longitudinal guidance
A Swivel direction of the backrest 6
B Swivel direction of the backrest 6
X Direction of movement of the lying surface frame 5
Y Direction of movement of the bed frame 5

Claims (6)

1. Sick bed with a lying surface frame consisting of a backrest, a middle part, a thigh part and a lower leg part for receiving the patient and the bedding, which can be adjusted on a mattress that is adjustable in height and / or inclination and lockable in its respective height and / or angular position frame is arranged, the mutually adjacent bed surface parts are each pivotable about mutually parallel axes and are arranged lockable in the respective desired inclination position, characterized in that the entire bed surface frame ( 5 ) on the mattress center frame ( 4 ) is arranged displaceably in its longitudinal direction , such that the lying surface chenrahmen ( 5 ) when swiveling up (A) the back kenlehne ( 6 ) towards the head and when swiveling the backrest ( 6 ) towards the foot head is simultaneously displaceable. 2. Sick bed according to claim 1, characterized in that on the mattress frame ( 4 ) backdrop or longitudinal guides ( 51 ) or ( 52 , 53 ) for storing and guiding the lying surface frame ( 5 ) are arranged. 3. Sick bed according to claim 2, characterized in that the backdrop or longitudinal guides ( 51 or 52 , 53 ) are designed as U-profiles, which are directed with their U-legs against each other and towards the center of the crane kenbettes, that the U-legs connecting webs run vertically ver, the U-profiles are arranged in the longitudinal profiles of the mattress frame ( 4 ) and the lying surface frame ( 5 ) with its middle part in the longitudinal guides ( 51 , 52 ) and the lower part leg part ( 9 ) - possibly indirectly - in the slide guides ( 51 ), if necessary, with low friction over rollers (e.g. 50 ). 4. Sick bed according to claim 1 or one of the follow, characterized in that the motor drive ( 25 ) for driving the thigh and Un thigh part ( 8 and 9 ) on the central part ( 7 ) and is articulated with this gearing. 5. Sick bed according to claim 1 or one of the follow, characterized in that the backrest ( 6 ) on its underside two spaced cam bearing parts ( 13 , 14 ), which with convex cam tracks ( 15 , 16 ) against in the area of the lower side of the mattress frame ( 4 ) arranged abutment rollers ( 17 , 18 ) non-positively supported, a length-adjustable part ( 26 ) of the motor drive ( 24 ) for the backrest ( 6 ) via an axis ( 27 ) with the mattress frame ( 4 ) and that other length-adjustable part ( 31 ) via an axis ( 32 ) with the central part ( 7 ) is rigidly connected, while a length-adjustable part ( 35 ) of the second motor drive ( 25 ) via a pivot axis ( 36 ) with the central part ( 7 ) and In contrast, the length-adjustable part ( 35 ) of the second motor drive ( 25 ) with the upper leg part ( 8 ) is coupled in a gearbox. 6. Sick bed according to claim 1 or one of the follow, with a height-adjustable and tiltable with respect to the horizontal mattress frame, characterized in that by a control from a central point, the motor drives ( 24 , 25 ) for the bed surface parts ( 6 , 7th , 8 , 9 ) and the motor drive for the height and or inclination adjustment of the mattress frame ( 4 ) can be controlled at the same time so that the control of the lying surface parts ( 6 , 7 , 8 , 9 ) in a sitting position ( Fig. 2) also Mattress frame ( 4 ) can be inclined with respect to the horizontal.