EP0433737B1 - Bed, especially a bed for patients and/or bed for nursing - Google Patents

Abstract

A bed, especially a bed for patients and/or a bed for nursing, consists of a bed frame (1) in which a preferably adjustable insert or frame for lying on is arranged, and a lifting carriage (21) which supports the bed frame (1) and which has a lifting device for raising and lowering the bed frame (1), with several footrests (5), preferably four. The bed frame (1) has downwardly directed supporting columns (3). Provided in each case at the foot of the supporting columns (3) is a castor (6). In order to improve the outward appearance of a bed of this type, the support columns (3) and the castors (6) are arranged inside the footrests (5). In the lowered state, the castors (6) project downwards and out from the footrests (5) (Fig. 1). <IMAGE>

Description

The invention relates to a bed, in particular a hospital bed and / or a nursing bed, according to the preamble of claim 1.

Such a bed is known from CH-A-167 118. The known bed consists of a bed frame, in which a bed insert is arranged, and a lifting frame carrying the bed frame with a lifting device for lifting and lowering the bed frame. The lifting frame has four footrests. The bed frame has support supports pointing downwards. A castor is provided at the foot of the support supports, at the lower end of a support piece that points obliquely outwards and downwards.

BE-A-544 248 discloses a similar bed with a bed frame and a lifting frame in which castors are connected to the bed frame which are located next to the footrests.

GB-A-12 33 521 or the corresponding DE-B-17 66 522 shows a bed with a bed frame and a lifting frame, in which rollers are provided which are connected to the lifting frame.

From US-A-13 78 096 a bed is known in which the downward-facing support supports are provided with casters. The footrests are arranged next to the beam supports.

GB-A-11 17 105 shows a bed with castors connected to the bed frame. Extendable footrests are arranged next to the castors.

The castors are always visible on the known beds. They are constantly exposed to external influences.

The object of the invention is to improve the external appearance of a bed of the type specified u. Easily accessible to nursing staff when stationary and stable, and easy to maneuver when mobile.

According to the invention this object is achieved by the features specified in the characterizing part of claim 1. The support brackets and casters are located within the footrests. Furthermore, the castors protrude from the footrests when lowered. When the bed is in its extended position, the casters are inside the footrests. They are then not visible, which improves the external appearance or the "look" of the bed. Furthermore, the rollers are protected from external influences, which makes it easier to keep the rollers clean and prevents damage from contamination.

When lowered, the rollers protrude from the footrests below. So the bed can be rolled. When the bed is lowered, the castors are barely visible, since they only have to protrude from the footrests by a relatively short distance and because they are still inside the footrests, so that they are hardly visible from diagonally above are. In addition, the bed is only rolled for a relatively short period of time. Then the bed is moved up again, so that the casters completely get back into the footrests and the bed is stable again on the footrests. The selected arrangement has the further advantage that the bed is lower when rolling, so that it can be easily maneuvered. When the bed is stable, it is relatively high, so that the nursing staff can easily care for the patients. When the bed is stable, the bed and the patient in it have the required height for easy care by the nursing staff. The bed is very easy to handle.

Advantageous further developments are described in the subclaims.

It is advantageous if the footrests have a box-shaped or tubular cross-section. The footrests can be provided on their lower edge with a pressure and non-slip ring support, preferably made of rubber or plastic.

Preferably, the lifting frame is electromechanical and. or hydraulically adjustable.

A further advantageous development is characterized in that the lifting device parts, for example toothed strips, pistons or cylinders, which are used for the engagement of drive and adjustment devices, are attached to the support supports.

The support brackets can be made longer than the footrests, so that when the support brackets are retracted, the casters protrude a small amount from the footrest on the standing surface. When the support brackets are fully inserted into the footrests, the casters protrude below out of the footrests so that the bed can be rolled. When the support brackets are extended, the casters disengage and the bed stands firmly and securely on the foot supports. The height of the bed can be adjusted further by extending the support supports. The footprints of the footrests are relatively large because the footrests encase the support supports including the castors. Beam supports and footrests are encased in one another.

Preferably, only one central drive source, preferably an electric motor with drive shafts and pinions, is provided for extending and retracting all of the carrier supports. The drive shafts can consist of a main longitudinal shaft and transverse shafts for driving the pinion. However, it is also possible to form the drive shaft by means of a hydraulic pump with individually assigned reciprocating pistons without thereby departing from the basic idea of the invention.

The support supports can be equipped with fastening and support heads, which are used for connection to the bed frame and for support on the lifting frame. According to a further advantageous development, the lower foot parts of the corner posts of the bed frame are designed and designed such that they are placed directly on the support heads of the support supports and connected to them. Here, the lower surface of the feet of the corner posts and the surface of the support heads are designed so that they correspond with one another and engage in one another.

The height of the longitudinal parts of the bed frame can be designed so that these longitudinal parts receive approximately the same height of the longitudinal parts of the lifting frame. This has the advantage that these longitudinal parts of the bed frame also serve as a screen for the upper part of the lifting frame.

The central drive source for the joint actuation and loading of all adjustable carrier supports can be for one Single actuation or pair actuation or total actuation can be set up, for example by arranging differential locks or compensating pistons.

A safety cover for the central drive source and / or at least parts of the drive shafts is preferably arranged on the lateral longitudinal parts of the lifting frame. This is particularly recommended for security reasons. The safety cover can be in the form of a sheet. The safety cover is advantageously attached to the side longitudinal parts of the lifting frame.

The casters can be mounted in such a way that they can rotate both about the longitudinal axis of the respective support and also about their own transverse axis and can perform a pivoting movement. The rollers are therefore preferably mounted such that they can perform movements in two different levels.

The footrests can at least partially be designed as cheeks.

An attractive overall view of the bed is achieved by the bed according to the invention and its advantageous developments.

Fig. 1

eine Ansicht eines Pflegebettes mit ausgefahrenen Trägerstützen,

Fig. 2

eine Seitenansicht auf das Pflegebett nach Fig. 1 mit eingefahrenen Trägerstützen und auf der Standfläche aufstehenden Rollen,

Fig. 3

eine Abwandlung eines Pflegebetts mit eingefahrenen Trägerstützen,

Fig. 4

das in Fig. 3 dargestellte Pflegebett mit ausgefahrenen Trägerstützen,

Fig. 5

ein Pflegebett mit einer Wangenkonstruktion mit eingefahrenen Trägerstützen und

Fig. 6

das in Fig. 5 dargestellte Pflegebett mit ausgefahrenen Trägerstützen.

Embodiments of the invention are shown in the accompanying drawing. In this shows

Fig. 1

a view of a nursing bed with extended support supports,

Fig. 2

2 is a side view of the care bed according to FIG. 1 with the carrier supports retracted and the rollers standing on the base,

Fig. 3

a modification of a care bed with retracted Beam supports,

Fig. 4

the care bed shown in Fig. 3 with extended support supports,

Fig. 5

a care bed with a cheek construction with retracted support supports and

Fig. 6

the care bed shown in Fig. 5 with extended support supports.

Fig. 1 shows a care bed for various uses and uses with a bed frame 1 with narrow sides arranged head and foot parts, in which an adjustable couch insert, not shown in the drawing, can be stored. The head and foot sections are connected by longitudinal sections. The head and foot sections also carry the corner bars 2.

The lifting frame 21 has transverse and longitudinal parts of a frame, in which footrests 5 are arranged at all four corners, which have a box or tubular cross section. In the footrests 5 extendable support supports 3, which are connected to the bed frame 1, are guided telescopically. The carrier supports 3 are equipped with toothed racks 9 into which the drive pinions 10 engage. Carrier heads 31 are attached to the support supports 3 and serve to fasten the bed frame 1 and to support for or on the lifting frame 21. The support heads 31 thus limit the downward movement of the support supports 3 by resting on the upper ends of the foot supports 5.

At the foot of each support 3, a movable and rotatable castor 6 is mounted. Each castor 6 is both about the longitudinal axis of the respective support 3 and the transverse axis of the roller pivoted and rotatable. The footrests 5 are provided on their lower edge with a pressure and non-slip ring support 11 made of rubber or plastic.

According to a special embodiment, not shown in the drawings, the feet of the corner spars 2 can be designed in such a way that they are suitable for direct attachment and / or for connection to the support heads 31 of the support supports 3.

The height of the footrests 5 is approximately equal to the comfortable seat and entry height of the bed body. The support brackets 3 are longer than the footrests 5, so that the casters 6 protrude a small amount from the footrest 5 on the standing surface in the retracted lower position of the support brackets shown in FIG. 2; in this position the bed can be rolled.

Only one central drive source, namely an electric motor 8, is provided for the extension and retraction of all carrier supports 3. This drives the carrier supports via drive shafts 4 and pinions 10. The electric motor 8 is mounted together with the drive shafts 4 in the frame of the lifting frame 21. The drive pinions 10 are actuated by the transverse shafts shown in FIG. 2. In Fig. 1 it can be seen that the support supports 3, which are guided telescopically in the foot supports 5, are extended upwards and the bed frame 1 is thereby raised. During this movement, the casters 6 lift off the floor, so that the bed is then stable on the footrests 5.

For safety reasons, the electric motor 8 is covered by a safety cover 7 in the form of a sheet or the like.

From the illustration in FIG. 2 it can be seen that when the support supports 3 are retracted, the foot supports 5 serve as guides for the support supports and the rollers 6 protrude by a small amount in the foot region of the foot supports 5 such that the bed is driven on the rollers 6 or can be pivoted.

The illustration in FIG. 1 shows that the casters 6 move into the footrests 5 when the support brackets 3 are raised and these footrests 5 then serve as rigid and secure pillars. The footrests 5 are provided on the lower edge of their tubular body with pressure and non-slip ring supports 11 made of rubber or plastic.

The height of the longitudinal parts of the bed frame 1 is approximately equal to the height of the longitudinal parts of the lifting frame 21, as can be seen in FIG. 2, so that these longitudinal parts of the bed frame 1 cover the longitudinal parts of the lifting frame 21 as a screen.

When the support brackets are extended, the body of the bed stands securely and non-slip on the footrests that surround the support brackets. This is not only important for safety reasons, but is also advantageous if the nursing staff provides additional beds. This prevents in fact that the nursing bed leans against the bed body when the nursing staff leans or presses against it. When the support supports are in the extended position, the bed is stable on the footrests. In this position the height of the bed is greater than in the retracted position of the support supports in which the bed can be rolled. Exactly the desired height ratios are achieved: when the bed is stable, it is relatively high, so that the nursing staff can easily care for the patients. When rolling, the bed is lower so that it can be easily maneuvered. Beam supports and footrests are guided into each other, so the castors are protected and secured in the footrest. This will improve the look of the bed. Furthermore, the roles are exposed to external influences and especially protected from contamination. The castors are covered by the footrests, which surround the carrier supports like an outer tube.

3 and 4 show a modification in which the same parts are provided with the same reference numerals, so that they do not have to be described again. The bed frame 1 has side parts 31 which are adjustable in height. The ends of the side parts 31 are slidably mounted in the corner spars 2.

In Fig. 3, the support supports 3 are retracted into the footrests 5. 4, the support supports 3 are extended from the foot supports 5 and are therefore partially visible. When the carrier supports 3 are retracted (FIG. 3), the casters 6 protrude from the foot supports 5 at the bottom; the bed can be rolled. As can be seen from FIG. 4, the support supports 3 continue upwards in the corner spars 2. The support supports 3 are thus the lower parts or continuations of the corner spars 2. This solution is particularly space-saving and elegant.

The bed shown in FIGS. 3 and 4 has an electrically adjustable, four-part link frame made of aluminum profiles with an integrated neck support and an electrical height adjustment. In its lowest position (FIG. 3), the bed can be moved by rollers which in this position protrude downward from the footrests 5 and which are covered in the position according to FIG. 4. The stability is increased in this position according to FIG. 4 by plastic ring supports.

5 and 6 show a variant with a cheek construction. The footrests are at least partially designed as cheeks 41. Two footrests on one narrow side are connected to each other by a cheek 41. In the extended position shown in FIG. 5, the support supports 3 protrude upward out of the cheeks 41. 6, the support supports 3 are completely in the cheeks 41 trained footrests retracted. The rollers 6 protrude from the cheeks 41 below.

Claims (14)

1. A bed, in particular a patient's bed or nursing bed, consisting of
   a bed frame (1) wherein there is arranged a preferably adjustable insert or frame for lying on,
   and a lifting frame (21) bearing the bed frame (1), with a lifting appliance for raising and lowering the bed frame (1), with several, preferably four, support feet (5),
   wherein the bed frame (1) has downwardly pointing bearing supports (3)
   and wherein at the foot of the bearing supports (3) provision is made for one castor (6) each,
   characterized in that
   the bearing supports (3) and the castors (6) are arranged inside the support feet (5)
   and that in their lowered position, the castors (6) project at the bottom from the support feet (5).
2. A bed according to claim 1, characterized in that the support feet (5) have a box-shaped or tubular cross-section.
3. A bed according to claim 1 or 2, characterized in that at their bottom standing rim, the support feet (5) are provided with a pressure and slide resistant annular bearing means (11), preferably of rubber or a synthetic material.
4. A bed according to one of the preceding claims, characterized in that the lifting frame (21) is electro-mechanically or hydraulically height-adjustable.
5. A bed according to one of the preceding claims, characterized in that on the bearing supports (3) there are arranged the parts of the lifting appliance, for example racks (9), pistons and cylinders, serving for the engagement of a drive and adjustment appliance.
6. A bed according to one of the preceding claims, characterized in that the bearing supports (3) are designed to be longer than the support feet (5), so that when the bearing supports (3) are run into the low position, the castors (6) project on the base downwards to a small extent from the support foot (5).
7. A bed according to one of the preceding claims, characterized in that for the outward and inward movement of all bearing supports (3), provision is made for only one central drive source, preferably an electric motor (8), with drive shafts (4) and pinions (10).
8. A bed according to one of the preceding claims, characterized in that the bearing supports (3) are provided with securing and bearing heads (31) for connection to the bed frame (1) and for being supported on the lifting frame (21).
9. A bed according to claim 8, characterized in that the bottom foot portions of the corner posts (2) of the bed frame (1) are arranged and adapted to each other for positioning and connection to the bearing heads (31) of the bearing supports (3).
10. A bed according to one of the preceding claims, characterized in that the height of the longitudinal parts of the bed frame (1) is approximately equal to the height of the longitudinal parts of the lifting frame (21), so that these longitudinal parts of the bed frame (1) screen the longitudinal parts of the lifting frame (21) from view.
11. A bed according to one of the preceding claims, characterized in that the central drive source is designed and arranged both for a common actuation of, and action on, all adjustable bearing supports (3), as well as for an individual actuation or actuation in pairs.
12. A bed according to one of claims 7 to 11, characterized in that on the lateral longitudinal parts of the lifting frame (21) there is arranged a safety cover (7) for the central drive source and/or at least portions of the drive shafts.
13. A bed according to one of the preceding claims, characterized in that each castor (6) is mounted for pivoting and rotation both round the longitudinal axis of the respective bearing support (3) and round the transverse castor axis.
14. A bed according to one of the preceding claims, characterized in that the support feet (5) are designed at least partly as side plates (41).

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