DE9307322U1 - Device operable with an electric motor - Google Patents

Description

■■■*- .··.···; "Patent attorneys

■■■·;. ^: ..: \ Or Loesenbeck (1980)

·""··" Dipl.-Ing. Stracke

20/22 DipNng. Loesenbeck

Jöllenbecker Str. 164,4800 Bielefeld

Dewert GmbH & Co. KG Drive and System Technology Weststraße 4983 Kirchlengern

Device operated by an electric motor

The present invention relates to a lifting device which can be operated with an electric motor and which can be used as a separate

part can be placed on a slatted frame of a bed, a couch or the like and then functions as a head or foot part, whereby the motor and the drive parts connected to it are fixed to a crossbar and connected to a lifting scissors, which on the other hand is connected to a

pivoting lying surface.

Such lifting devices are known per se.

However, the motor and the connected

Drive parts are attached to the side of the cross member, which results in a number of disadvantages.

Due to the height of the motor and the drive components, the bed can be lowered to a level that is parallel

or almost parallel to the slatted frame, is practically impossible, so that the user is forced to

-2- Dewert

always have to accept a certain inclination.

For many potential users of such a device, its use is therefore not acceptable.

The present invention is therefore based on the object of designing a lifting device of the generic type in such a way that its construction height is minimized when the lying surface is lowered and the use of the lifting device meets all conceivable requirements with regard to the inclination of the lying surface.

This object is achieved according to the invention in that the motor and the drive parts are arranged on the underside of the cross member facing away from the lying surface and in that fastening means are provided with which the lifting device can be fixed to the slatted frame.

Due to this structural design of the lifting device, it is now guaranteed that the lying surface can be lowered into a flat position.

This means that the use of such a lifting device on a bed or lounger is no different from the lifting devices that are used as an integral part of a slatted frame.

In contrast, the separate device, according to the type, offers the advantage that all slatted frames... can be retrofitted, whereby the lifting device according to the invention makes it necessary, in the worst case, to remove a slat from the slatted frame in order to be able to place the crossbar with the connected motor or drive parts, in the event that the distances between the individual slatted frames are not large enough to guide the crossbar with the various connected parts through the gap between two slats.

-J-Dewert

According to an advantageous embodiment of the invention, it is provided that the crossbar and/or the side parts connected to it, as well as any side frame parts of the bed surface, are adjustable in width, so that a lifting device can be used for a series of slatted frames with different widths. Adjustment can be carried out using telescopic extension pieces guided in the crossbar or the side parts.

The arrangement of fastening devices on the lifting device ensures that it is held securely on the slatted frame, with the result that unintentional, operational displacement of the lifting device is excluded and it assumes a fixed position.

Further advantageous embodiments of the invention are characterized in the subclaims.

Embodiments of the invention are described below with reference to the accompanying drawings.

Show it :

Figure 1 shows a bed frame fixed on a slatted frame,

Device according to the invention in perspective view;

Figure 2 shows a further embodiment of the invention, also shown in perspective;

Figure 3 shows a detail of the invention, seen in

Direction of arrow III in Figure 2.

Dewert

Figures 1 and 2 show a lifting device which can be operated with an electric motor and is provided with the reference number 1 as a whole, which can be placed as a separate part on a slatted frame 6. This can be seen in particular from Figure 1, where the slatted frame and the associated slats 7 are shown in dash-dotted lines.

The motor 3 and drive means 4, with which a connected lifting scissors 5, which is attached to a lying surface 9 on the other hand, can be operated, are arranged on the underside of a crossbar 2 of the lifting device 1.

The slats 7 can remain unchanged, depending on how much space there is between two of them, so that the crossbar 2 or the motor 3 attached to it and the drive parts 4 can be inserted between two slats 7, with the motor 3 and the drive parts 4 protruding into the space below the slatted frame. If necessary, it is also possible to loosen a slat 7 from its frame-side anchoring and remove it in order to create sufficient space. Since the slats 7 are usually only inserted into the slatted frame 6, such a measure is very easy to implement.

At both end sides of the preferably tubular cross member 2, an extension piece 8, 12 is guided in a telescopic manner, which at their free end are designed as angled fastening tabs 14, which rest on the slatted frame 6 and can be connected to it, for example by screwing.

The fastening tabs 14 are angled downwards, so that the side parts 15 of the lying surface 9 can rest on them approximately flush with the slatted frame 6.

-5-Devalue

The extension pieces 12 shown in Figure 2 are also designed in this sense, while the entire lifting device is attached using fastening plates 11 that are fixed to side beams 13. These in turn are hinged on the one hand to the end area of the lying surface 9 or the side parts 15 facing away from the lifting scissors, while on the other hand they are connected to the respective extension piece 12.

In contrast, in the embodiment shown in Figure 1, there is no direct connection between the crossbar 2 and the joint area of the lying surface 1. Rather, fastening brackets 10 are provided in the joint area, which are adjustable just like the extension pieces 8 and which can be attached to the slatted frame 6.

Instead of the head part as shown in the embodiments, it is of course also possible to design the lifting device 1 as a foot part, in which case its dimensions, in particular its length, can be changed if necessary.

Claims (6)

... -6-Dewert Protection Claims 1. Lifting device that can be operated with an electric motor and that can be placed as a separate part on a slatted frame of a bed, a couch or the like and then functions as a head or foot part, whereby the motor and the drive parts connected to it are fixed to a crossbar and connected to a lifting scissors, which on the other hand is connected to a pivotable lying surface, characterized in that the motor (3) and the drive parts (4) are arranged on the underside of the crossbar (2) facing away from the lying surface (9), and that fastening means are provided with which the lifting device (1) can be fixed to the slatted frame (6). 2. Lifting device according to claim 1, characterized in that extension pieces (8, 12) are guided in the cross member (2) in a telescopically displaceable manner. 3. Lifting device according to claim 2, characterized in that the extension pieces (8, 12) are angled in the direction of the lying surface (9). 4. Lifting device according to claim 1 or 3, characterized in that the fastening means consist of fastening tabs (14) which are attached to the extension pieces (8) and of fastening angles (10) connected to the lying surface (9). 5. Lifting device according to claim 1 or 2, characterized -■ „r-7- «..' ·,, Dewert characterized in that the fastening means consist of fastening plates (11) which are fixed to side rails (13) which are connected on the one hand to the extension pieces (12) and on the other hand in an articulated manner to the lying surface (9). 6. Lifting device according to one of claims 1 to 5, characterized in that the fastening angles (10) or the side beams (13) or side parts (15) of the lying surface (9) are displaceable in the longitudinal axis direction of the cross beam (2)