DE19529813A1 - Invalid or hospital bed working with wheelchair - Google Patents

Abstract

The bed frame (10) and mattress are divided by an opening (2) run right across the bed width so that when the bed frame is at its lowest level, a wheelchair (20) with seat frame (24) and back frame (52) folding down flat from upright can be wheeled in and bolted to the bed frame now acting as a support. In this condition the seat frame and back frame together span the bed frame opening (28) and the seat frame seating surface and back frame surface area supplement the bed mattress to give a lying area. Fixed bearers (30) fitted to the bed frame where this faces the opening ride over seat frame surfaces (54) in the down position as against the raised position of the bed frame in which these surfaces support the wheelchair. The bearers have opposed bolt entries engaged by spring loaded bolts projecting from the seat frame when the wheelchair has been wheeled into place.

Description

The invention relates to a hospital or nursing bed with a height adjustment bar frame and a mattress placed on it. Such beds are usually connected to a movable base in which motorized drive devices for height adjustment of the whole Bed frame and the inclination of the head and back sections are ordered.

Sick or in need of care who can neither stand nor walk and go to Are using a wheelchair to get around outside the bed to transfer from bed to wheelchair and vice versa Se at least temporarily for support from nursing staff reliant. The nursing staff is especially moving when being transferred disabled or heavy patients from bed to wheelchair and vice versa returns burdened with difficult physical exertion, which in many cases leads to back problems for the nursing staff.  

The object of the invention is therefore a nursing or nursing care to create bed of the type mentioned that a person in need of care a simplified transition from bed to a wheelchair and vice versa enables.

According to the invention, this object is achieved by

• - That bed frame and mattress by a middle between them Head and foot ends across the entire width of the bed are interrupted
• - That at the lowest position of the bed frame, a seat frame and one of a substantially upright position to a horizontal adjustable Retract and extend the wheelchair with the back frame into the recess bar and retracted on the bed frame supported and with the help a locking device can be attached to it,
• - That in the retracted state of the seat frame and that in the horizontal located back frame together the recess in the bed frame full constantly bridge and a seat arranged on the seat frame together with a backrest arranged on the back frame Complete the mattress to form a continuous lying surface.

Based on this proposal, the frame and mattress can be removed take a suitable wheelchair with you after folding the back frame its seat and backrest in the bed frame and in the Ma steps are integrated. This is a z. B. paralyzed, but otherwise Movable patient able to lie on the bed without help from the patient Move nursing staff to the seat, straighten the backrest and leave the bed with the wheelchair after unlocking it. Au In addition, the handling of immobile nursing care is made easier poorer by the caregiver erecting the patient on the seat that with the backrest of the wheelchair, then the wheelchair against unlocked over the bed frame and the patient away on the wheelchair can drive. In addition, the bed according to the invention has only four rectangular mattress parts on (one foot side, one head side and a middle mattress consisting of seat and backrest cut), which, like the associated covers, are easy to manufacture and form an essentially uniform and therefore comfortable lying surface. In this way, the bed offers a high level of comfort and is special for the care of immobile patients who rely on the bed is suitable.

Furthermore, the arrangement of the recess according to the invention enables  that when entering and exiting the wheelchair in this z. B. the cover of the Patients hygienically housed on the foot section of the mattress can be.

In a practical embodiment of the patient's invention or nursing bed, the bed frame can be on opposite sides of the Recess be provided with fixed supporting parts in the lowest position the bed frame a small vertical distance from the lower support Have surfaces of the seat frame, form a guide for the seat frame and support the entire wheelchair with the bed frame raised. The Support parts can consist, for example, of simple flat rails, on which the seat frame of the wheelchair with its lower contact surfaces slides when retracting and extending or to ver the frictional resistance wrestle, maintain a small vertical distance from them. At the Raising the bed frame in a care position becomes the seat and Backrest of the wheelchair, which together fill the recess and are appropriately adjusted in height to the mattress, with raised.

According to a configuration of the sick or nursing bed according to the Erfin dung can face each other in the supporting parts attached to the bed frame  lying trap recesses are attached, in the retracted Condition of the wheelchair guided on the seat frame, spring protruding therefrom engage loaded latchbolts. That when the latch bolts snap into place unmistakable striking noise associated with the recesses informs the patient or carer that the wheelchair is safe in the Bed frame is locked.

In a preferred embodiment of the invention, the trap belt gel, located on the front of the seat frame and accessible from the outside have, with the help of the patient sitting on the seat the roll can easily and comfortably unlock the chair to drive away.

A particularly advantageous embodiment results when the latch bolts have a larger vertical dimension than the latch recesses. This structural measure leads to a game between the bolt and its inclusion, with the possible differences in height between wheelchair and the bed frame in its lowest position to be balanced and thus always a safe locking and also a jam-free unlocking of the latch bolt is guaranteed. Height differences arise, for example, from uneven floors or when the Tires of the wheelchair due to the different weight in them  Patients are pressed together to different degrees. Also for the advantageous case described above, in which the lower edition surface of the seat frame in the lowest position of the bed frame when and extend a short distance above that in the recess arranged support parts; enables the proposed measure locking the wheelchair securely.

In another embodiment of the sick or Nursing beds can have at least one recess underneath the bed frame stiffening tube bridging in the longitudinal direction of the bed, that in the retracted state of the wheelchair as a support for the the back frame is in a horizontal position. With the help of this Measure is the bed frame interrupted by the recess ver strengthens, with several such stiffening tubes at the same height in parallel can be attached to each other on the bed frame.

A preferred embodiment of the ver by a special wheelchair complete nursing or nursing bed according to the invention provides that Removable armrests on the wheelchair or on the back frame perpendicular to it Armrests which can be pivoted in the longitudinal direction are mounted with the aid of a Latching device can be fixed in at least one position. The before  drafted design with swivel armrests allows a be particularly quick and easy conversion of the wheelchair, the armrest are always within reach of the patient.

To additionally secure the wheelchair in the recess, can in the retracted state ver behind the back frame swiveled the armrests with the horizontal back frame on the roll Chair facing away from the stiffening tube with preferably little Concern game. The wheelchair can also be extended when unlocked not possible.

According to a further embodiment of the sick or Nursing beds can be placed on the underside of the back frame of the wheelchair between two laterally attached to the rear end of the seat frame, in retracted state at a stop attached to the bed frame lying links are stored, with the back frame in at least one inclination can be determined with the aid of a locking device. While the latchbolts according to the invention against the wheelchair secure visible extension, the stop prevents the vehicle from opening too far ren in the recess, so that the seat, backrest and the mattress form a complete, flush, lying surface.  

Another advantageous embodiment of the invention results if the Bed frame rounded or chamfered at the corners of the recess the recess passes, the risk of injury to those in the lows position around knee height is reduced. This also forms Measure a kind of centering or insertion aid, through which the insertion driving the wheelchair into the recess simplified.

In another embodiment of the invention, the seat frame the wheelchair has a removable chassis with the help of an outside common operating parts arranged on the front of the seat frame Latch device be releasably attached. That through the in the recess retracted and locked wheelchair complete bed is with Help from all sides of the proposed measure by nursing staff Easily accessible because of the disturbing, protruding beneath the bed Parts of the wheelchair that constitute the risk of injury can be removed if necessary.

In other advantageous embodiments of the invention, the exception the bed frame and mattress into a smaller one and one each divide the larger section assigned to the patient's upper body, this can also be the bed frame assigned to the upper body of a patient  section near the recess pivotally mounted and with respect be erectable up to an angle of at least 70 ° to the horizontal. This causes a patient lying on the side by straightening the The bed backrest is automatically erected on the seat of the wheelchair. Especially if the backrest adjustment of the bed is motorized and can be remotely controlled, even a person with severe mobility problems Put the patient on the wheelchair himself or without help from others Place the wheelchair in bed.

The invention can also be further developed in that the Recess opposite end faces of the mattress and the attached each adjacent sides of the seat and backrest a rei have a low-coating or made of a low-friction material exist, or that arranged on the erectable bed frame section nete mattress section at its end adjacent to the recess is fixed to the bed frame, or that on the side of the erectable bed frame men section on the end face of the Bed frame moldings are arranged, the vertical course of the Ensure the front of the fixed mattress end essentially. The These measures make it easier to move the wheelchair in and out Recess, which is particularly important when standing up steeply  The back of her mattress section adjoining the wheelchair exposed to additional deformation, the mattress and seat ge bracing against each other.

Other features and advantages of the sick or Nursing beds result from the dependent claims, the drawings and the following description of an embodiment. It show, ever because schematically,

Fig. 1 is a plan view of a bed according to the invention, without mattress and without wheelchair,

Fig. 2 is a side view of the bed of Fig. 1,

Fig. 3 is a plan view of the base frame of a bed after OF INVENTION dung,

Fig. 4 is a front view of the head-side end of a bed according to the invention,

Fig. 5 is a plan view of a bed according to the invention without mattresses, however, with retracted into the recess Wheelchair

Fig. 6 is a side view of the bed according to Fig. 5, in lowest position with retracted into the recess Wheelchair

Fig. 7 is a side view of the bed of FIG. 5 in a raised position with retracted into the recess wheelchair,

Fig. 8 is a side view of a wheelchair in the retracted state with horizontally adjusted back frame,

Fig. 9 is a front view of the wheelchair according to Fig. 8,

Fig. 10 is a rear view of a wheelchair with vertically adjusted back frame,

Fig. 11 is a plan view of a wheelchair with horizontally adjusted back frame according to FIG. 8, but without a seat and backrest,

Fig. 12 is a plan view of a wheelchair with vertically adjusted back frame to illustrate the armrest adjustment,

Fig. 13 is a side view of a wheelchair for illustrating the adjusting movement of the back frame,

Fig. 14 is a side view of a wheelchair with vertically set back frame and forwardly pivoted armrests,

Fig. 15 is a front view of the wheelchair according to Fig. 14,

Fig. 16 is a partial front view of the locked in the recess wheelchair,

Fig. 17 is a partial top view of a wheelchair locked in the recess and

Fig. 18 is a side view of a bed according to the invention with a retracted wheelchair, the chassis is removed.

A hospital or care bed according to the invention is shown in FIG. 1 and 2 of a bed frame 10 mounted on cross beams 58 and by means of which is arranged in an undercarriage 12 lifting devices 16 is adjustable in height and receiving of a mattress 14, in within the bed frame 10 supported inner frame 26 , the z. B. can be a rust. Frame 10 , mattress 14 and inner frame 26 are between their head and foot ends by a recess over the entire width of the bed 28 as shown in FIGS . 1 and 2 in left, smaller sections from 10 a, 14 a, 26 a and right, Larger sections 10 b, 14 b, 26 b assigned to the upper body of a patient are divided. Referring to FIG. 2, the Un is tergestell bottom side 12 reinforced by a longitudinal beam 32 and on the bottom of the bed frame 10 by stiffening tubes 34 and 36.

The inner frame 26 b assigned to the upper body of a patient is pivotably mounted on its side facing the recess 28 about a horizontal axis 38 . On its underside, a drive 44 attached to the base frame 12 engages, by means of which the inclination of the bed backrest can be adjusted remotely. At the head and foot ends of the bed frame 10 , conventional pipe brackets 48 are arranged vertically.

According to FIGS. 3 and 4, a single longitudinal beam 32 is sufficient on the bottom side for sufficient stiffening ring of the base frame 12 . Likewise, a plurality of longitudinal beams 32 can also be provided, in particular if, in accordance with an embodiment, not shown, of a fixed stand 92, a base frame provided with rollers or wheels is used for the bed according to the invention.

According to Fig. 5 and 6, the recess dimensioned 28 so that in the lowest position of the bed frame 10, a seating frame 24, a back frame and located in position ho rizontaler single 52-tasting wheelchair 20 and can be extended. When retracting and extending the wheelchair 20 laterally arranged on the seat frame 24 of the wheelchair 20 , slide-shaped lower support surfaces 54 have small lateral or vertical positions from support members 30 which are attached to the end faces 18 of the bed frame 10 in the recess 28 opposite one another . In the example shown, the support parts 30 consist of horizontal plates welded or screwed to the bed frame 10 , which protrude as support and guide rails into the recess 28 , form a guide for the contact and support surfaces 54 and support the wheelchair 20 when the bed frame 10 is raised.

The horizontally adjusted back frame 52 of the wheelchair 20 rests on the stiffening tubes 34 and 36 in the retracted state. The interruption of the bed frame 10 caused by the recess 28 is thus filled by the seat frame 24 and the back frame 52 . A seat surface 22 is arranged on the seat frame 24 , the height of which is adapted to the mattress 14 and has approximately the same elasticity as this. The same properties also have a backrest 56 arranged on the back frame 52 , but hidden in FIG. 6.

In the lowest position of the bed according to Fig. 6, since the lower support surfaces 54 of the seat frame 24 at a small distance to the including ver running supporting parts 30 have, in order to reduce the frictional resistance during retraction and extension, projecting seat 22 and backrest 56 on their upper side somewhat beyond the adjacent mattress sections 14 a and 14 b.

In the raised state of the bed according to FIG. 7, however, the seat surface 22 and the backrest 56 complement the mattress 14 interrupted by the recess 28 to form a uniformly continuous lying surface.

It can clearly be seen how, after the bed has been raised, the seat frame 24 rests on the support parts 30 and the mattress 14 just merges into the seat surface 22 . In the raised position, the bed offers the nursing staff a comfortable working height.

The section of the inner frame 26 b which forms the bed backrest can be erected into a very steep position according to the invention with the aid of the drive 44 , as a result of which the patient can be erected from the lying position on the seat surface 22 of the wheelchair 20 easily and without effort, or vice versa, the seated person Patient can be easily moved to any lying position.

According to Fig. 8 and 9, 20, the wheelchair and the seat frame 24 terstützendes un chassis 60 with small and large guide wheels and a foot pad on. At its rear end, approximately above the large wheels, a triangular shaped connec tion member 64 is attached to the seat frame 24 , on which the back frame 52 is pivotally mounted at its lower end about a horizontal axis 66 . The leg of the connecting member 64 which points vertically downward forms a stop in the retracted state of the wheelchair 20 with the stiffening tube 36 which is further inward with respect to the bed frame 10 . This impact defines the entry depth for the wheelchair 20 , in which the locking device discussed below defines the wheelchair 20 in the recess 28 in a secure manner.

At the upper end of the back frame 52 , an angled push bracket 62 is attached, with which the wheelchair can be comfortably moved by a caregiver. Armrests 68 are pivotably mounted on both sides of the back frame 52 between pushing bracket 62 and connecting member 64 about axes 70 running parallel to the back frame 52 . In a driven state according to FIG. 8, the armrests 68 are pivoted behind the back frame 52 and engage with little play behind the stiffening tube 34 that is external to the bed frame 10 . As long as the back frame 52 remains in its horizontal position, the wheelchair 20 cannot be moved out of the recess 28 in this way, even if the locking mechanism is broken or accidentally released.

Arrow 72 indicates that the backrest 56 is displaceable from the position directly adjoining the seat surface 22 in the direction of the push bar 62 . Also noteworthy is the large diameter of the wheels of the chassis 60 , which is achieved due to the flat design of the seat frame 24 and offers the patient a convenient and energy-saving way to move himself in a wheelchair.

According to Fig. 10 64 locking devices 74 are disposed at the connecting members that secure for example in the vertical and in the horizontal position, the back frame 52. In the vicinity of the pivot axis 70 , further locking devices 76 are assigned to the back frame 52 of each armrest 68 , which, for securing the armrests 68, for example in a position pivoted backwards for accommodating the wheelchair 20 in the recess 28 of the bed and in a position pivoted forward secure position ready for driving.

The locking devices 74 and 76 have spring-loaded bolts 80 which engage during the locking in openings in fitting parts 78 fastened to the back frame 52 or in corresponding openings in the connecting links 64 . To unlock a bolt 80 is pulled out of its previous opening by hand, during pivoting it can be released, it then slides on the respective fitting part 78 or on the connecting member 64 until it reaches the next locking position where it enters the corresponding new one Opening snaps automatically due to its spring loading and thus secures the armrest 68 or the back frame 52 in the new position.

In Fig. 11, the wheelchair 20 is shown in the retracted state with horizontally adjusted back frame 52 and with behind the back frame 52 , ie, armrests 68 pivoted downward from above.

According to Fig. 12, the armrests 68 are angled so that in their front position they run laterally next to the seat and parallel to it. After the armrests 68 are pivoted about their respective pivot axis 70 in their rear position, they are in the position shown in dashed lines, so that the back frame 52 can be pivoted into the horizontal in the retracted state.

Corresponding to FIG. 13, the backrest 56 before the back frame 52 is raised from its horizontal position to the vertical position, has been adjusted according to the given direction by the arrow 72 from the seat surface 22 away. When the vertical position of the back frame 52 is reached, the end face of the backrest 56, which is now at the bottom, rests on the top of the seat surface 22 and thus directly connects to it again.

In Figs. 14 and 15 of the wheelchair 20, as dergegeben vertical back frame 52 and pivoted to the front armrest 68 in position for departure.

According to FIGS. 16 and 17 are guided in the front region of the seat frame 24 on both sides of the seat frame 24 laterally projecting depending by a spring-loaded latch bolt 40 which, upon reaching the locking of the bed frame position 10 will lock in recesses 50 in the support members 30. According to Fig. 16 40 show the latch bolt to a greater height than the case receptacles 50 such that they project upwards and downwards over the supporting part 30. In this way, a secure locking of the lock is guaranteed even with different height differences. Referring to FIG. 17, the corners of the support parts 30 are rounded, thereby forming during retraction of the wheelchair a centering insertion and support the return force of the projecting portion in Einfährrichtung tapering from bevelled latch bolt 50 against the spring bias. The latch bolts 50 are extended on the rear side by a linkage 84 to approximately the middle of the seat frame 24 , where they end at an angle in actuating handles 42 which protrude from the seat frame 24 through oblong openings and are easily accessible by a patient sitting in a wheelchair 20 . Arrow 82 indicates the direction of adjustment of the actuating handles 42 or the linkage 84 .

The chassis 60 is releasably attached to the underside of the seat surface 24 by means of a locking device 86 . For this purpose, led der der loaded bolts 80 are prestressed in corresponding openings in the chassis 60 on the seat frame 24 . To release the connection between the chassis 60 and the seat frame 24 , the bolts 80 are pulled out of the openings by hand, the chassis 60 is now displaceable relative to the seat frame 24 and can be pulled out from under the bed frame 10 . In the opposite case, the chassis 60 is brought back under the seat frame 24 , where the bolts 80 snap back when the corresponding openings in the chassis 60 are reached. Between chassis 60 and seat frame 24 , guide means are preferably provided which facilitate the locking process.

According to Fig. 18, the bed when the chassis 60 is taken off the wheelchair 20, a free base, so that nursing staff without risk of injury, can easily approach from all sides to the patient. On the bed frame 10 there is also a gallows 88 which projects from the head end of the bed over the patient. A conventional triangle handle can be attached to it so that the patient can easily move himself to another position. In addition, on the side of the bed frame 10 there is a shelf 90 which can be pivoted about a horizontal axis and which, for example, serves as a tray for meals or as a writing pad.

The removed chassis 60 can in the meantime be used for receiving another seat frame for the transport of another patient, or maintenance or repair work can be carried out on it without the patient's or care bed according to the invention being completely unusable for this time.

Claims (20)

1. Sick or nursing bed with a height-adjustable bed frame and a mattress arranged thereon, characterized in that

• - That the bed frame ( 10 ) and mattress ( 14 ) are interrupted by an approximately central between their head and foot ends across the entire width of the recess ( 28 ),
• - That at the lowest position of the bed frame ( 10 ) a seat frame ( 24 ) and one of a substantially upright position in a horizontal ver adjustable back frame ( 52 ) having a wheelchair ( 20 ) in the Ausneh line ( 28 ) retractable and extendable and in retracted state supported on the bed frame ( 10 ) and can be fixed to it with the aid of a locking device ( 40 , 50 ),
• - That in the retracted state of the seat frame ( 24 ) and located in the horizon tal back frame ( 52 ) together completely bridge the recess ( 28 ) in the bed frame ( 10 ) and one on the seat frame ( 24 ) arranged seat surface ( 22 ) together with one on the back frame ( 52 ) arranged backrest ( 56 ) complete the mattress ( 14 ) to a continuous lying area.

2. Sick or nursing bed according to claim 1, characterized in that the bed frame ( 10 ) on opposite sides of the recess ( 28 ) is provided with fixed supporting parts ( 30 ) which in a lowered position of the bed frame ( 10 ) of contact surfaces ( 54 ) of the wheelchair seat frame ( 24 ) can be driven over, form a lateral guide for the seat frame ( 24 ) and support the wheelchair at its support surfaces ( 54 ) with raised bed frame ( 10 ). 3. Sick or nursing bed according to claim 2, characterized in that the supporting parts ( 30 ) contain opposing latch recesses ( 50 ), in which horizontally guided on the seat frame ( 24 ), spring-loaded latch latches ( 40 ) engage when the wheelchair is retracted . 4. Sick or nursing bed according to claim 3, characterized in that the latch bolts ( 40 ) arranged on the front of the seat frame ( 24 ) have actuating parts ( 42 ) that are accessible from the outside. 5. Sick or nursing bed according to claim 3 or 4, characterized in that the latch bolt ( 40 ) and the latch recesses ( 50 ) in the engaged state are movable relative to each other in the vertical direction. 6. Sick or nursing bed according to one of the preceding claims, characterized in that beneath the bed frame ( 10 ) at least one stiffening tube ( 34 , 36 ) bridging the recess ( 50 ) in the longitudinal direction of the bed is attached, which when the wheelchair is retracted ( 20 ) at the same time forms a support for the horizontally set back frame ( 52 ). 7. Sick or nursing bed according to any one of the preceding claims, characterized in that on the wheelchair ( 20 ) removable armrests are arranged or on the back frame ( 52 ) transverse to its longitudinal direction ver pivotable armrests ( 68 ) are mounted, which by means of a latch direction ( 76 ) can be determined in at least one position. 8. Sick or nursing bed according to claim 7, characterized in that in the retracted state behind the back frame ( 52 ) pivoted armrests ( 68 ) with a horizontal back frame ( 52 ) on the side facing away from the wheelchair ( 20 ) on the stiffening tube ( 34 ) Concern game. 9. Sick or nursing bed according to one of the preceding claims, characterized in that the back frame ( 52 ) in both sides of the seat frame ( 24 ) attached connecting members ( 64 ) and in at least one inclination with the help of a locking device ( 74 ) can be determined The connecting links ( 64 ) abut a stop ( 36 ) attached to the bed frame ( 10 ) when the wheelchair is retracted. 10. Sick or nursing bed according to one of the preceding claims, characterized in that the bed frame ( 10 ) at the corners of the recess ( 28 ) is rounded or bevelled into the recess ( 28 ). 11. Sick or nursing bed according to one of the preceding claims, characterized in that on the seat frame ( 24 ) of the wheelchair ( 20 ) a chassis ( 60 ) with the aid of a locking device ( 86 ) is releasably attached, which is accessible from the outside, at the front of the seat frame ( 24 ) arranged actuation parts ( 80 ). 12. Sick or nursing bed according to one of the preceding claims, characterized in that the recess ( 28 ), the bed frame ( 10 ) and the mattress ( 14 ) each in a smaller and a larger, the upper body of a patient assigned section ( 10 a, 14 a or 10 b, 14 b) divided. 13. Hospital or nursing bed according to claim 12, characterized in that the upper body of a patient associated bed frame section ( 10 b) in the vicinity of the recess ( 28 ) is pivotally mounted and can be erected with respect to the horizontal up to an angle of at least 70 °. 14. Sick or nursing bed according to one of the preceding claims, characterized in that the opposite end faces of the mattress ( 14 ) in the recess ( 28 ) and the adjacent sides of the seat surface ( 22 ) and the backrest ( 56 ) each Have low-friction coating or consist of a low-friction material. 15. Sick or nursing bed according to claim 13, characterized in that the erectable on the bed frame section ( 10 b) arranged Ma mattress section ( 14 b) on its adjacent to the recess ( 28 ) En de on the bed frame ( 10 b) is fixed. 16. Sick or nursing bed according to claim 15, characterized in that on the side of the erectable bed frame section ( 10 b) on the recess ( 28 ) adjoining the end face of the bed frame ( 10 b) are arranged, which form a vertical profile of the Ensure the front of the fixed mattress end essentially. 17. Sick or nursing bed according to one of the preceding claims, characterized in that the backrest ( 56 ) along the back frame mens ( 52 ) is displaceable and fixable thereon with locking devices, in particular Velcro fasteners or push buttons. 18. Sick or nursing bed according to one of the preceding claims, characterized in that a gallows for a carrying handle is arranged at the head end of the bed frame ( 10 ). 19. Sick or nursing bed according to one of the preceding claims, characterized in that laterally on the bed frame ( 10 ) a pivotable about a hori zontal axis storage ( 90 ) is mounted. 20. wheelchair ( 20 ) with a removable on the seat frame ( 24 ) Fahrge stell ( 60 ) and a pivotally mounted on the seat frame ( 24 ) back frame ( 52 ), the seat frame ( 24 ) and back frame ( 52 ) for receiving and support in the recess ( 28 ) of the hospital bed or nursing bed is designed according to one of the preceding claims.