DE29706683U1 - Height-adjustable hospital and nursing bed - Google Patents

Description

casa-garden GmbH & Co. KG
Rehabilitation products for care
Weihestr. 114

32584 wages

Height-adjustable hospital or nursing bed

The invention relates to a height-adjustable hospital or nursing bed according to the preamble of the main claim.

Hospital or nursing beds are known, DE 43 10 003 C1, which have height-adjustable bed frames and lifting frames with several footrests, on which additional rollers mounted in guide tubes are arranged, which can be extended downwards using an electromechanical adjustment option. However, a separate adjustment drive is required for each of the four feet, so that a considerable amount of mechanical effort must be made and complicated circuit technology is required to create such a bed. In addition, assembling such a bed is very complicated and time-consuming.

The object of the invention is to provide a height-adjustable hospital or nursing bed, the frame of which has the simplest possible structure, which can be assembled particularly easily and conveniently, whose mechanical structure is greatly simplified and which enables individual functions to be retrofitted.

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The solution to this problem is achieved in conjunction with the generic features according to the invention by the technical teaching specified in the characterizing part of the main claim.

Adjacent to the rollers are feet which stand on the floor in any position other than the lowest position of the upper frame, whereby the rollers are mounted on a guide on the lower frame so that they can be moved vertically, each roller has a tappet extending upwards from the guide, which

&iacgr;&ogr; the lowest position of the upper frame rests against this or other parts that are vertically movable relative to the lower frame in such a way that the lower frame can be raised by a single drive means, in particular the drive means used for height adjustment, from this position in the direction of the upper frame into a position in which the feet are raised off the ground.

The interaction of the upper and lower frame is particularly advantageous here, as a single electromechanical or hydraulic drive for adjusting the height of the bed can also be used to unlock the castors or raise the feet. The number of components for this inventive hospital or care bed is considerably lower than for known beds of the state of the art, the structure is greatly simplified and the requirements for the circuit technology are significantly minimized.

Of particular advantage is an embodiment of the subject matter of the invention in which each castor is combined with a base to form an assembly, this assembly has flange surfaces with which it can be adapted to known, height-adjustable beds.

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can be retrofitted. The base is advantageously pot-shaped and can accommodate the roller inside. On its upward-facing base it has holes for fastening to a cross or longitudinal beam of the lower frame. Furthermore, a stop can be arranged on the base so that when retrofitting, positioning on the lower frame is made easier and moment support is ensured to prevent the base from twisting.

&iacgr;&ogr; According to a particularly preferred embodiment of the subject matter of the invention, the base has a centrally upwardly extending casing tube as a guide on its upwardly directed surface, through which a profile tube extends upwards, which has a length-adjustable stop at its upper end, which, in the lowest position of the upper frame, rests directly on the upper frame or on a stop surface of a stop that can be retrofitted. At the lower end, the profile tube has a flange for fastening the impeller.

The stop on the upper support frame can be easily retrofitted by either screwing or welding it onto the upper frame, or by replacing the upper frame of an old nursing bed with a modified new upper frame, which is made easier by the fact that the overall construction of the lifting device and the frame is extremely simple and can be dismantled and reassembled with ease.

casa-garden GmbH & Co. KG ·*:

A particularly advantageous embodiment of the lifting device is as a scissor lifting device, which consists of either only three or even only two individual components that are easy to assemble and disassemble.

In the case of the scissor lifting device, which is constructed from three prefabricated assemblies, the first assembly consists of the lower frame and a pair of scissor arms that are non-removably hinged to it, the second assembly consists of the upper frame with a detachable swivel joint arranged above the axis of rotation of the lower frame, and the third assembly consists of a second pair of scissor arms that are pivotally arranged on the upper detachable swivel joint and have another detachable swivel joint at the intersection point of the scissor arms.

15 tion.

In an advantageous embodiment of the scissor lifting device consisting of only two components, the two aforementioned second and third components are combined into a single component, so that the scissor lifting device as a whole consists of only two units that can be assembled or disassembled. The assembly is further simplified in particular by the fact that the free ends of the scissor arms guided in the articulated frame have axes arranged off-center, with the axis arranged in the upper articulated frame being arranged upwards and the axis guided in the lower frame being arranged downwards.

Further advantageous embodiments of the subject matter of the invention arise from the subclaims,

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An embodiment of the invention is described in more detail below with reference to the drawings.

Fig. 1 a frame with a scissor lifting device in the maximum raised or lowered position,

Fig. 2 is a plan view of a frame with a scissor lifting device,

Fig. 3 is an enlarged view of a stop on an upper frame and

Fig.4 a retrofittable castor-base assembly in a partially sectioned side view.

The height-adjustable hospital or nursing bed has a height-adjustable frame with an upper frame 1, a lower frame 2, a first pair of scissor arms 16 and a second pair of scissor arms 17 arranged between them, and a lifting device 7 arranged between the upper frame 1 and the lower frame 2. A roller-base assembly 20 is retrofitted to the side corners of the lower frame 1, whereby an assembly 20 is made up of a pot-shaped base 4 with a guide 5 attached to the upwardly directed base and a profile tube extending through the guide 5, at the upper end of which an adjustable stop 12 and a flange 13 at the bottom for attaching a roller 3 are arranged. Fastening surfaces 8 are provided on the base of the pot-shaped base 4 and holes 9 are made in it, as well as a stop 10.

casa-garden GmbH & Co. KG

welded on in order to fasten the structural unit 20 to a longitudinal or transverse beam of the lower frame 2. The stop 12 extending upwards from the profile tube 11 is designed to be height-adjustable in order to adapt to different minimum distances between the lower frame 1 and the upper frame 2 of various models to be retrofitted.

In order to provide a stop surface 14, 15 on the upper frame 1 for the stop 12 of the castor-base assembly 20, either a stop piece with a stop surface can be arranged on a cross member of the upper frame, or a stop surface 15 can be provided by replacing the upper frame 1 with a correspondingly extended frame.

The frame 1,2 is advantageously connected to the scissor lifting device in such a way that the entire frame can be dismantled into just two or three components.

The frame with scissor lifting device made up of three components essentially consists of the lower frame 2 and a first pair of scissor arms 16 attached to a pivot axis 18 as the first component, an upper frame 1 with a detachable pivot joint 19 arranged above the pivot axis 18 of the lower frame 2 as the second component and a second pair of scissor arms 17 with a receptacle for the upper pivot joint 19 and a further detachable pivot joint at the intersection point of the pairs of scissor arms 16, 17 as the third component.

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In the case of a frame with a scissor lift device consisting of only two assemblies, the first assembly is identical to the aforementioned first assembly and the second assembly consists of the aforementioned second and third assemblies.

The two free legs of the two pairs of scissor arms 16, 17, which are guided in inward-facing recesses in the longitudinal beams of the frame 1, 2, are guided on roller-mounted axes, whereby the axes are arranged offset from the central longitudinal axis of the pairs of scissor arms 16, 17 in opposite directions to the outside, so that they can be guided past each other during assembly and the assembly and disassembly of the entire frame is greatly simplified.

Claims (10)

casa-garden GmbH & Co. KG ·· ·*" ·**·! &bgr;;**!**,* Protection claims 1. Height-adjustable hospital or nursing bed consisting of a frame with an upper frame with fastening parts for a bed base, with a lower support frame with castors, with between &iacgr;&ogr; upper frame and lower frame arranged lifting device with mechanical, electromechanical or hydraulic drive means, characterized in that adjacent to the rollers (3) are arranged feet (4) which stand on the floor in any position other than the lowest position of the upper frame (1) and that the rollers (3) are mounted on the lower frame (2) so as to be vertically displaceable in a guide (5), each roller (3) has a plunger (6) extending upwards from the guide (5) which, in the lowest position of the upper frame (1), is supported on this or other parts which are vertically movable relative to the lower frame (2), and that the lower frame (2) can be raised by a single lifting device for height adjustment from this position in the direction of the upper frame (1) into a position in which the feet (4) are raised from the floor. 2. Height-adjustable hospital or nursing bed according to claim 1, characterized in that each castor (3) is at least partially surrounded by a base (4) and combined with it to form a subassembly (20) and that this subassembly has flange surfaces and casa-garden GmbH & Co. KG ·! ·** Means for retrofitting to known height-adjustable beds. ....· 3. Height-adjustable hospital or nursing bed according to one or both of the preceding claims, characterized in that the base (4) is inverted pot-shaped and has a hole (9) on its upwardly directed surface for attachment to a transverse or longitudinal beam of the lower frame (2). &iacgr;&ogr; 4. Height-adjustable hospital or nursing bed according to one or more of the preceding claims, characterized in that the base (4) has a stop (10) as a positioning aid and torque support, which is supported against the lower frame (2). 5. Height-adjustable hospital or nursing bed according to one or more of the above-mentioned claims, characterized in that the base (4) has a casing tube extending centrally upwards from the upwardly directed surface as a guide (5), through which a profile tube (11) extends and whose upper end has a length-adjustable stop (12) and which has a flange for the impeller (3) at its lower end. 6. Height-adjustable hospital or nursing bed according to one or more of the preceding claims, characterized in that a stop surface (14), (15) for the stop (12) of the wheel (3) is arranged on the upper frame (1). 7. Height-adjustable hospital or nursing bed according to one or more of the previous claims, characterized in that the casa-garden GmbH & Co. KG ·; ;)* ;"*; · , *. &Idigr; ,* upper frame (1) is extended and extends over the stop (12) of the castor-base assembly (20) and forms a stop surface (15) there. 8. Height-adjustable hospital or nursing bed according to one or more of the previous claims, characterized in that the lifting device (7) is designed as a scissor lifting device and the frame consisting of the upper frame (1), lower frame (2) and the scissors consists of three prefabricated assemblies, with &iacgr;&ogr; a lower frame (2) and a first pair of scissor arms (16) attached to a pivot axis (18) at one end as a first assembly, an upper frame (1) with a detachable pivot joint (19) arranged above the pivot axis (18) of the lower frame (2) as a second assembly and with a second pair of scissor arms (17) with a receptacle for the upper pivot joint (19) and a further detachable pivot joint at the intersection point of the pairs of scissor arms (16, 17) as a third assembly. 9. Height-adjustable hospital or nursing bed according to one or more of the above-mentioned claims 1 - 7, characterized in that the lifting device (7) is designed as a scissor lifting device and the frame consists of an upper frame (1), a lower frame (2), a first pair of scissor arms (16) and a second pair of scissor arms (17) made up of two prefabricated assemblies, with a lower frame (2) and a first pair of scissor arms (16) attached to an axis of rotation (18) in an articulated manner at one end as the first assembly, an upper articulated frame (1) with a pivoting axis attached to the axis of rotation above the axis of rotation (18) of the lower frame (2) casa-garden GmbH & Co. KG attached pair of scissor arms (17) as a second assembly and a detachable swivel joint at the intersection point of the two pairs of scissor arms (16,17). 10. Height-adjustable hospital or nursing bed according to one of the two previous claims (8) or (9), characterized in that axes for guiding the leg ends in recesses in the upper and lower frame (1, 2) are arranged on the freely displaceable leg ends of the scissor arm pairs (16, 17), which axes are arranged offset outwards in opposite directions to the central axes of the scissor arm pairs (16, 17).