DE20118952U1 - Lifting column for hospital or nursing beds - Google Patents

Description

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Lifting column for hospital or nursing beds

The innovation primarily relates to hospital and nursing beds with a bed frame mounted on two motor-adjustable lifting columns, which can be adjusted in height and pivoted in height via these lifting columns, with an additional device in conjunction with the lifting columns accommodating castors for making the hospital and nursing beds mobile.

Hospital or nursing beds with lifting columns are well known. These lifting columns have complex construction elements, e.g. telescopic spindles, chain or cable drives. All of these drive elements have the disadvantage of being too high and the telescopic column having too little lift, and in terms of appearance the construction is too bulky in relation to the hospital or nursing bed.

The invention is based on the task of improving the existing defect of the excessive installation height, whereby only a small stroke of the installed gear motor but a large stroke of the lifting column is desired. A more elegant, narrow design should be sought.

This task is solved by moving a scissor linkage by a vertically operating gear motor with lifting tube and pull tabs, whereby the pull tabs are connected to the scissor linkage at the lower pair of scissor levers.

The stroke of the gear motor is controlled by limit switches which are not described in detail.

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The innovation is shown in the drawings and is described in more detail in the following text:

Fig. 1: Longitudinal section of a lifting column in lowest storage position.

Fig. 2: Longitudinal section of a lifting column in highest storage position.

Fig. 3: Detailed cross-section of a lifting column. Fig. 4: Partial view of a nursing bed (longitudinal view) Fig. 5: Partial view of a nursing bed (transverse view)

In Fig. 4 + 5 a possible embodiment of a partial view of a hospital or nursing bed with lifting columns is shown, whereby an additional device 21 with the rollers 25 and for optical reasons with a possible plastic cover 26 is attached in the lower area of the telescopic outer tube 3. The bed frame 22 with the headboards 24 and the side boards 23 is screwed onto the telescopic inner tube 1.

The lifting column consists of the telescopic inner tube 1, the telescopic middle tube 2 and the telescopic outer tube 3, whereby the materials should preferably be aluminum or stainless steel. The preferably adjustable sliding discs 4 guide the individual telescopic tubes 1, 2, 3.

The scissor linkage, consisting of the long pivot levers 13, the long pivot levers 14 with the receiving bolts 14a and the short pivot levers 15, which are connected by bolts 19, whereby the disks 18 take over the distance of the interconnected pivot levers.

In Fig.: 1+2 a lifting column is shown in a longitudinal section. The scissor linkage is attached to the telescopic inner tube via a bridge 5 with the bearing bracket 7 and the screw connection 6, in the telescopic outer tube 3 via the axis 17 with Starioc disks 20. The pivot levers, long with the receiving bolts 14+14a move the control brackets 16, which control the telescopic middle tube 2 for the synchronization of the extendable lifting column.

The vertically installed gear motor 8 with the spindle 9, the lifting tube 11 with the receiving pins 11a and the spindle nut 10 moves the pull tabs 12, which are attached to the receiving pins 11a of the lifting tube 11 and to the central pivot point 30 of the pivot lever, long 14 with the receiving bolts 14a Fig.: 3

Reference symbol

(29) (30)

(1) Telescopic inner tube

(2) Telescopic center tube

(3) Telescopic outer tube

(4) Sliding discs

(5) Bridge

(6) Screw connection (?) Bearing bracket

(8) Gear motor

(9) Spindle

(10) Spindle nut

(11) (11 a) Lifting tube with mounting pin

(12) Pull tab

(13) Swing lever, long

(14) (14a) Swing lever, long with mounting bolt

(15) Swing lever, short

(16) Tax tab

(17) Axis

(18) Disc

(19) Bolts

(20) Starioc fuse

(21) Additional equipment

(22) Bed frames

(23) Side board

(24) Headboard

(25) Roller

(26) possible Ku.-cover

(27) Cushion pad

(28) Cover strip fastening pivot point

Claims (8)

1. Hospital or nursing bed with bed frame mounted on two lifting columns, which can be adjusted in height and height via the lifting columns, characterized in that the lifting column is preferably made of a stainless steel or aluminum material, whereby three 1, 2, 3 or more telescopic tubes slide into one another and are driven by a vertically driven gear motor 8 with spindle 9 and lifting tube 11 , which is mounted inside or outside the telescopic columns and moves the scissor linkage. 2. Hospital or nursing bed according to claim 1, characterized in that only a short path of the gear motor 8 with spindle 9 and lifting tube 11 is required in order to achieve a large path of the lifting column via the scissor linkage.
(Figure: 1 + 2) 3. Hospital or nursing bed according to claims 1 + 2, characterized in that the adjustment of the scissor rod is carried out via the pull tabs ( 12 ) attached to the end point of the lifting tube ( 11 , 11 a) and to the receiving bolt ( 14 a) of the pivot lever, long ( 14 ). (Figure: 3) 4. Hospital or nursing bed according to claims 1-3, characterized in that the control tabs ( 16 ) which control the telescopic central tube ( 2 ) are attached to the long scissor levers ( 14 ) with receiving bolts ( 14a ). (Figure: 1 + 2) 5. Hospital or nursing bed according to claims 1-4, characterized in that an additional device ( 21 ) is used on the lifting columns to make the lifting column mobile, whereby the castors ( 25 ) can be locked individually or centrally. (Figure: 4 + 5) 6. Hospital or nursing bed according to claims 1-5, characterized in that a cover ( 26 ) is used for the lifting columns with the additional device ( 21 ) and the rollers ( 25 ) for optical reasons. 7. Hospital or nursing bed according to claims 1-6, characterized in that the gear motor ( 8 ) is also used as a drive outside the telescopic tubes ( 1 , 2 , 3 ), in which case the telescopic tubes are designed in smaller dimensions. 8. Hospital or nursing bed according to claims 1-7, characterized in that the gear motor ( 8 ) is used outside the telescopic tubes ( 1 , 2 , 3 ) as a drive, wherein the gear motor ( 8 ) is then fastened at the top in the telescopic tube.