Bed for use by patients or as treatment bed - has motorised lifting arrangement consisting of telescopic tubes and threaded spindle with threaded connector which is brought into contact with spindle
Abstract
Suffer- or care bed, having at least two carrying a bed frame, electromotive telescopically height-adjustable and / or höhenverschwenkenden lifting columns, each of which slide into each other Hubrohre, a jack screw, a drive and an application running on the lifting spindle nut include, which is coupled to at least one of the lifting spindle rotation and Hubrohre in a stroke movement on the mast transfers to Patent 195 28 179, characterized in that the nut (9) by a bipartite, in the jack screw (6) on and disengageable, in coupled state the Hubspindelumfang form-fitting surrounds Coupling nut is formed.

Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
22 claims: 22 independent, 0 dependent
- 1Patentansprüche claims 1. Bed, especially hospital or nursing bed, with a bed frame (2) mounted on at least one foot or underframe (1), which at least one motor apart and zusammenfahrbares, Height-adjustable and / or höhenverschwenkbar on the foot or underframe (1) and the bed frame (2) carrying lifting telescope (3), wherein the lifting telescope consists of at least two reciprocally displaceable lifting tubes (4, 5, 6) and a lifting spindle (7), which carries a pallet truck (8), with a between a lower and an upper lifting tube (4, 6) extending cable (9) is coupled and the lifting tubes (4, 5, 6) go against each other, characterized, in that the lifting carriage (8) can be coupled and uncoupled, in the lifting spindle (7) at least along a part of the spindle circumference positively engaging, in the engaged state on the spindle (7) along running coupling nut (10) with the lifting spindle (7) is connected. 1. Bett, insbesondere Kranken- oder Pflegebett, mit einem auf mindestens einem Fuß oder Untergestell (1) gelagerten Bettrahmen (2), welcher über mindestens ein motorisch auseinander- und zusammenfahrbares, am Fuß oder Untergestell (1) festgelegtes und den Bettrahmen (2) tragendes Hubteleskop (3) höhenverstellbar und/oder höhenverschwenkbar ist, wobei das Hubteleskop aus mindestens zwei ineinander verschiebbaren Hubrohren (4, 5, 6) und einer Hubspindel (7) besteht, welche einen Hubwagen (8) trägt, der mit einem zwischen einem unteren und einem oberen Hubrohr (4, 6) verlaufenden Seilzug (9) gekoppelt ist und die Hubrohre (4, 5, 6) gegeneinander verfahrt, dadurch gekennzeichnet, daß der Hubwagen (8) über eine ein- und auskuppelbare, in die Hubspindel (7) mindestens entlang eines Teils des Spindelumfangs formschlüssig eingreifende, im eingekuppelten Zustand auf der Spindel (7) entlanglaufende Kupplungsmutter (10) mit der Hubspindel (7) verbunden ist.
- 2Bett nach Anspruch 1, dadurch gekennzeichnet, daß die Kupplungsmutter (10) die Hubspindel (7) vollständig umfaßt und bezüglich der Schraubachse halbseitig ein dem Gewinde der Hubspindel (7) entsprechendes Innengewinde (10a) aufweist, welches im eingekuppelten Zustand in das Spindelgewinde eingreift, und halbseitig einen Freischnitt (10b) aufweist, in welchem sich die Hubspindel (7) im ausgekuppelten Zustand frei drehbar befindet. Second Bed according to Claim 1, characterized in that the coupling nut (10) completely encloses the lifting spindle (7) and, with respect to the screw axis, has on one side an internal thread (10a) corresponding to the thread of the lifting spindle (7), which engages in the spindle thread in the engaged state. and on one side a free cut (10b), in which the lifting spindle (7) is freely rotatable in the disengaged state.
- 3Bett nach Ansspruch 1 oder 2, dadurch gekennzeichnet, daß die Kupplungsmutter (10) senkrecht zur Schraubachse verschiebbar, form- und/oder kraftschlüssig verbunden in einem Kupplungsgehäuse (11) oder -rahmen angeordnet ist, welches/welche mit dem Hubwagen (8) verbunden ist. Third Bed according to claim 1 or 2, characterized in that the coupling nut (10) is arranged displaceable perpendicular to the screw axis, positively and / or non-positively connected in a coupling housing (11) or frame, which / which connected to the lift truck (8) is. AT 405 368 Β AT 405 368 Β
- 4Bett nach Anspruch 3, dadurch gekennzeichnet, daß der Hubwagen (8) mit dem Kupplungsgehäuse (11) oder -rahmen über ein die Hubspindel (7) umfassendes Rohr (12) verbunden ist. 4th Bed according to Claim 3, characterized in that the lifting carriage (8) is connected to the coupling housing (11) or frame via a tube (12) which comprises the lifting spindle (7).
- 5Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in und/oder am Kupplungsgehäuse (11) oder -rahmen mindestens ein Rückstellglied (13), welches die Kupplungsmutter (10) in die ein- oder ausgekuppelte Stellung drückt, und eine Klemm-, Schraubund/oder Arretiereinrichtung (15) angeordnet ist, mittels welcher die Kupplungsmutter (10) in die jeweils andere Stellung, entgegen dem Rückstellglied (13), verbringbar und/oder arretierbar ist. 5th Bed according to one or more of the preceding claims, characterized in that in and / or on the coupling housing (11) or frame at least one return member (13) which presses the coupling nut (10) in the on or disengaged position, and a terminal -, screwing and / or locking device (15) is arranged, by means of which the coupling nut (10) in the respective other position, against the return member (13), can be brought and / or locked.
- 6Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Kupplungsmutter (10) außen eine Quaderform aufweist und in einem quaderförmigen Kupplungsgehäuse (11) senkrecht zur Schraubachse passig verschiebbar angeordnet ist, und daß zwischen der Kupplungsmutter (10) und einer Gehäusewand Federn (13) angeordnet sind, welche die Kupplungsmutter (10) in die ausgekuppelte Stellung drücken und daß auf der den Federn (13) gegenüberliegenden Seite der Mutter (10) im Gehäuse (11) ein verstellbares Druck-und/oder Klemmorgan (15) angeordnet ist, welches die Kupplungsmutter (10) entgegen der Federkraft in die eingekuppelte Stellung drückt und dort arretiert. 6th Bed according to one or more of the preceding claims, characterized, the coupling nut (10) has a cuboid shape on the outside and is arranged in a cuboid-shaped coupling housing (11) so as to be displaceable in a passable manner perpendicular to the screw axis, and in that springs (13) are arranged between the coupling nut (10) and a housing wall, which presses the coupling nut (10) into the disengaged position and that an adjustable pressure and / or clamping member (15) is arranged in the housing (11) on the side of the nut (10) opposite the springs (13), which presses the coupling nut (10) against the spring force in the engaged position and locked there.
- 7Bett nach Anspruch 6, dadurch gekennzeichnet, daß das Druck- und/oder Klemmorgan (15) ein Exzenter (15) ist. 7th Bed according to claim 6, characterized in that the pressure and / or clamping member (15) is an eccentric (15).
- 8Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Hubspindel (7) mit der Kupplungsmutter (10), dem Kupplungsgehäuse (11) oder -rahmen und dem Hubwagen (8) im inneren der Hubrohre (4, 5, 6) des Hubteleskops (3) angeordnet ist. 8th. Bed according to one or more of the preceding claims, characterized in that the lifting spindle (7) with the coupling nut (10), the coupling housing (11) or frame and the lifting carriage (8) inside the lifting tubes (4, 5, 6) of the lifting telescope (3) is arranged.
- 9Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in unteren Bereich des unteren Hubrohres (4) ein elektrischer Antriebsmotor (17) mit einer horizontal liegenden Antriebsachse (18) und ein die Hubspindel (7) haltendes Getriebe (19), welches die Bewegung der Antriebsachse (18) auf die Spindel (7) überträgt, angeordnet sind. 9th Bed according to one or more of the preceding claims, characterized in that in the lower region of the lower lifting tube (4) there is an electric drive motor (17) with a horizontal drive shaft (18) and a gear (19) holding the lifting spindle (7) the movement of the drive shaft (18) transmits to the spindle (7) are arranged.
- 10Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Hubwagen (8) aus einem oberhalf des Kupplungsgehäuses (11) oder -rahmens am Ende des den Hubwagen (8) mit dem Kupplungsgehäuse (11) oder -rahmen verbindenden Rohres (12) senkrecht zu diesem stehenden Querträger (29) besteht, welcher an beiden Enden drehbar gelagerte Umlenkrollen (21) für den Seilzug (9) trägt. 10th Bed according to one or more of the preceding claims, characterized in that the lifting carriage (8) consists of a top half of the coupling housing (11) or frame at the end of the pipe (12) connecting the lifting carriage (8) to the coupling housing (11) or frame ) is perpendicular to this stationary cross member (29), which carries at both ends rotatably mounted deflection rollers (21) for the cable pull (9).
- 11Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Seilzug (9) von einem mit einem Ende im unteren Bereich eines unteren Hubrohres (4) befestigten, von dort aus über die Umlenkrollen (21) des Hubwagens (8) und parallel zum Querträger (20) des Hubwagens (8) gespannten und mit seinem anderen Ende im unteren Bereich eines oberen Hubrohres (6) befestigten Zugseil (9) gebildet ist. 11th Bed according to one or more of the preceding claims, characterized in that the cable (9) of a fixed at one end in the lower region of a lower lifting tube (4), from there via the deflection rollers (21) of the lift truck (8) and parallel to the cross member (20) of the lift truck (8) tensioned and with its other end in the lower region of an upper lifting tube (6) fixed traction cable (9) is formed.
- 12Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zwischen dem Hubwagen (8) und der Standflache (22) des Hubteleskopes (3) parallel zur Hubspindel (7) ein Dämpfungsorgan (23) angeordnet ist. 12th Bed according to one or more of the preceding claims, characterized in that a damping element (23) is arranged between the lifting carriage (8) and the standing surface (22) of the lifting telescope (3) parallel to the lifting spindle (7).
- 13Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Hubteleskop (3) aus drei geführten ineinanderfassenden Hubrohren (4, 5, 6) besteht und das Zugseil (9) an einem Ende im unteren Bereich des untersten Hubrohres (4) und am anderen Ende im unteren Bereich des obersten Hubrohres (6) befestigt ist und bei einem Verfahren des Hubwagens (8) das oberste Hubrohr (6) gegenüber dem untersten Hubrohr (4) verschoben wird und beim Auseinanderfahren das mittlere Rohr (5) über zwischen den ineinandergeführten Enden des oberen und des mittleren Rohres (5, 6) angeordnete Ausfahranschläge (24) vom obersten Rohr (6) mitgezogen wird. 13th Bed according to one or more of the preceding claims, characterized, in that the lifting telescope (3) consists of three guided inter-connecting lifting tubes (4, 5, 6) and the traction cable (9) at one end in the lower region of the lowermost lifting tube (4) and at the other end in the lower region of the uppermost lifting tube (6) is fixed and in a process of the lift truck (8) the uppermost lifting tube (6 ) is displaced with respect to the lowermost lifting tube (4) and, when moving apart, the middle tube (5) passes between the ends of the upper and middle tubes (5, 6) arranged extension stops (24) from the top tube (6) is pulled along.
- 14Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zwischen den ineinandergeführten Enden des untersten und des mittleren Rohres (4, 5) Begrenzungsanschläge (24) angeordnet sind, welche ein Herausziehen des inneren aus dem äußeren Rohr (4, 5) verhindern. 14th Bed according to one or more of the preceding claims, characterized in that limit stops (24) are arranged between the ends of the lowermost and middle tubes (4, 5), which prevent the inner tube from being pulled out of the outer tube (4, 5) , AT 405 368 Β AT 405 368 Β
- 15Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das unterste Hubrohr (4) den größten und das oberste Hubrohr (6) den kleinsten Durchmesser aufweist. 15th Bed according to one or more of the preceding claims, characterized in that the lowermost lifting tube (4) has the largest and the uppermost lifting tube (6) has the smallest diameter.
- 16Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die 5 Hubrohre (4, 5, 6) von Mehrkantrohren, vorzugsweise im Querschnitt rechteckigen Rohren, gebildet sind. 16th Bed according to one or more of the preceding claims, characterized in that the 5 lifting tubes (4, 5, 6) of polygonal tubes, preferably rectangular in cross-section tubes, are formed.
- 17Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Exzenter (15) über eine parallel zur Hubspindel (7) verlaufende, torsionsstabile Teleskopstange (16) mit 17th Bed according to one or more of the preceding claims, characterized in that the eccentric (15) has a torsion-stable telescopic rod (16) running parallel to the lifting spindle (7) 70 a in the upper region of the uppermost tube (6) from the lifting telescope (3) led out control lever (17) is rotatably connected. 70 einem im oberen Bereich des obersten Rohres (6) aus dem Hubteleskop (3) herausgeführten Bedienhebel (17) drehfest verbunden ist.
- 18Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das untere äußere Hubrohr (4) am oberen Ende innen vier als Anschläge (24) dienende Führungswinkel 18th Bed according to one or more of the preceding claims, characterized in that the lower outer lifting tube (4) at the upper end inside four guide angles serving as stops (24) 75 (24), the middle lifting tube (5) at the lower end outside and at the upper end inside four as 75 (24) aufweist, das mittlere Hubrohr (5) am unteren Ende außen und am oberen Ende innen vier als Anschläge (24) dienende Führungswinkel (24) hat und das obere innere Hubrohr (6) am unteren Ende außen vier als Anschläge (24) dienende Führungswinkel (24) besitzt. Stops (24) serving guide angle (24) and the upper inner lifting tube (6) at the bottom of the outside four as stops (24) serving guide angle (24) has.
- 19Bett nach einem oder mehreren der vorstehenden Ansprüche, qadurch gekennzeichnet, das die 19th Bed according to one or more of the preceding claims, characterized in that the
- 2020 Guide angle (24) with screws on the lifting tubes (4, 5, 6) held and in the sliding system to the adjacent lifting tube (4, 5, 6) are adjustable. 20 Führungswinkel (24) mit Stellschrauben an den Hubrohren (4, 5, 6) gehalten und in der Gleitanlage zum benachbarten Hubrohr (4, 5, 6) einstellbar sind. 20. Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, das die Führungswinkel (24) einstückig an die Hubrohre (4, 5, 6) angeformt sind. 20th Bed according to one or more of the preceding claims, characterized in that the guide angles (24) are integrally formed on the lifting tubes (4, 5, 6).
- 21Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Bettrahmen (2) in einer Schwenkachse (25) schwenkbar an einem Hubteleskop (3) und mit einer in Bettrahmen-Längsrichtung verlaufenden Langlochfuhrung (26) in einer Schwenkachse (25) eines zweiten Hubteleskopes (3) schwenkbar und längsverschiebbar gelagert ist. 21st Bed according to one or more of the preceding claims, characterized in that the bed frame (2) in a pivot axis (25) pivotally mounted on a lifting telescope (3) and with a Langlochfuhrung (26) extending in bed frame longitudinal direction in a pivot axis (25) of a second lifting telescope (3) is pivotally mounted and longitudinally displaceable.
- 22Bett nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Hubteleskope (3) mit ihrem äußeren Hubrohr (4) an Querträgern (27) des Untgergestelles (1) durch schrauben, Schweißen, od. dgl. befestigt sind, die Querträger (27) feststellbare Laufrollen (28) haben und in den Querträgern (27) und einem diese verbindenden Längsholm (29) das Feststellgestänge für 22nd Bed according to one or more of the preceding claims, characterized in that the lifting telescopes (3) are fastened with their outer lifting tube (4) to cross members (27) of the subframe (1) by screwing, welding, or the like. 27) lockable rollers (28) and in the cross beams (27) and a longitudinal beam connecting them (29) the locking linkage for 35 all four rollers (28) is housed. 35 alle vier Laufrollen (28) untergebracht ist.
Independent claims22
56 paragraphs in 4 sections, as filed
(42) Date of commencement of the patent: 15.12.1998 (45) Date of issue: 26. 7.1999
7/002 (30)
Priority:
1. 8.1995 DE 19528179 claims.
(56) Citation »!:
US 4545084A US 4559655A
EP 606575A1 EP 539089A1 US 5329657A M 4322227C1 (73)
Patentee:
VADGHT-SAGEL GMBH & CO. D-33034 BRAKEL (DE).
(72) Inventor:
KÖTTTO HELMJT HICDINHAUSEN (DE, SAGEL HEINRICH BRAKEL (DE).
(54) NURSING OR CARE BED (57) The bed, especially hospital or nursing bed, has a bed frame (2) mounted on at least one foot or underframe, which at least one motor apart and zusammenfahrbares, height-adjustable and / or höhenverschwenkbar on the foot or underframe and the bed frame (2) carrying lifting telescope (3) The lifting telescope consists of at least two reciprocally displaceable lifting tubes (4, 5, 6) under a lifting spindle (7), which carries a lifting carriage (8) which carries with one between a lower and an upper lifting tube (4, 6) extending cable (9) is coupled and the lifting tubes (4, 5, 6) moves against each other The lift truck (8) is via a coupling and disengageable, in the lifting spindle (7) at least along a part of the spindle circumference positively engaging, in the engaged state on the spindle (7) along running coupling nut with the lifting spindle (7).
<img file="AT405368B_D0001.tif" />
AT 405 368
INS 0078019
ΑΤ 405 368 Β
The invention relates to a bed, especially a hospital or nursing bed, with a bed frame mounted on at least one foot or underframe, which can be disassembled and pulled apart by at least one motor Height-adjustable and / or höhenverschwenkbar on the foot or base frame and the bed frame bearing lifting telescope, wherein the lifting telescope consists of at least two reciprocally displaceable lifting tubes and a lifting spindle, which carries a pallet truck, which is coupled with a running between a lower and an upper lifting tube cable and the lifting tubes against each other.
Such a hospital and nursing bed is known from DE 43 22 227 C1.
The Hubteleskope shown there are structurally relatively simple and inexpensive and have short travel paths for a relatively large stroke. The drive requires only a small amount of power. Drive and lifting means are not visible from the outside housed in the lifting telescope.
A disadvantage of this hospital and nursing bed or the Hubteleskopen, however, that they always need a motor drive, so that in case of failure of a motor or power failure, the bed can not be changed in its location. Although additional batteries have helped over a power failure, but do not help, if the drive itself, z. B. due to a fault in the electric motor fails.
In addition, the drives work relatively slowly. For the patient lying in bed this is generally very pleasant. However, during care by the nursing staff this means extra waiting times in which the nursing staff is only next to the up or down moving bed. These times can certainly be used more meaningfully.
In order to enable decoupling of a lifting mechanism from a motor, various coupling designs have been proposed in which a nut (as in a conventional screw jack, eg, a manual scissors jack) travels on a rotating jackscrew and rigidly with the jacking mechanism connected sleeve or clutch disc is releasably coupled.
US 4 559 655 shows such a coupling mechanism for adjusting the head part of a nursing bed. The coupling between the mother constantly engaged with the lifting spindle and the fixedly connected to the lifting mechanism sleeve takes place here via a spring-loaded latch, which can be solved with a Bowden cable.
EP 0 606 575 A1 shows such a coupling within a conventional scissor lift device for use in a nursing bed. Here, the coupling takes place via two clutch discs which are intermeshed and are pressed against each other by a spring. A manual release of the clutch discs from each other is not provided. The coupling serves only as an overload protection, so that the lifting mechanism is not moved counter to a resistance occurring from outside further motor.
It is an object of the present invention to further develop a built according to the type mentioned Krankenoder nursing bed in the training of his Hubteleskope so that they can be moved either manually or manually, the coupling mechanism is relatively simple.
This object is achieved in that the truck is connected via a coupling and disengageable, in the lifting spindle at least along a part of the spindle circumference positively engaging, in the engaged state along the spindle along running coupling nut with the lifting spindle.
In the engaged state, the hospital bed can be moved via the lifting spindle as previously motor. When disengaged, the bed can be raised or lowered by hand. The manual lifting or lowering can be done much faster than the motorized adjustment. This leads to a reduction of waiting times for the nursing staff.
In contrast to the above-mentioned clutch mechanisms is dispensed with in the present invention to an additional clutch disc or sleeve. The mother itself is released in the decoupled state of the lifting spindle and brought in the coupled state with the lifting spindle in engagement.
The dependent claims 2 to 22 contain advantageous developments and refinements of the bed according to the invention.
It is particularly advantageous if between the lift truck and the base of the lifting telescope parallel to the lifting spindle, a damping element, for. B. a gas spring, is arranged. As a result, a speedy but still gentle shutdown of the bed is achieved with a raised bed after disengaging.
The invention will now be described by way of example with reference to the accompanying drawings. They show:
AT 405 368 Β
1 is a side view of a hospital or nursing bed with a mobile base frame and two mounted and a bed frame height adjustable and höhenverschwenkbar carrying lifting telescopes,
2 is a front view in vertical section of the lifting telescope in the extended state,
3 is a front view in vertical section of the lifting telescope in the retracted state,
4 is a side view of a Hubteleskops in a particularly flat design (the lifting spindle, the engine and the transmission are shown schematically),
5 is a front view of the coupling housing in vertical section with internal coupling nut and lifting spindle and eccentric clamping device,
6 is a plan view of the coupling housing in section with internal coupling nut and lifting spindle and eccentric clamping device in the engaged state,
Fig. 7 is a plan view of a coupling housing with internal coupling nut, lifting spindle and eccentric clamping device in the disengaged state.
The hospital or nursing bed has a bed frame (2) mounted on a mobile undercarriage (1), which can be height-adjusted and height-swiveled by two lifting telescopes (3) which can be moved apart and moved together by motor, fixed to the underframe (1) and supporting the bed frame (2) is.
Each lifting telescope (3) has three guided reciprocating lifting tubes (4, 5, 6), of which the lower outer lifting tube (4) is fixedly mounted on the undercarriage (1) and an electric drive motor (17) with gear (19) and lifting spindle (7). The electric drive motor (17) has a horizontal drive shaft (18). The movement of the drive axle (18) is transmitted to the vertically disposed lifting spindle (7) via the gear (19) holding the lifting spindle (7). Motor (17) and gear (19) may be formed as a continuous component.
The lifting spindle (7) carries a pallet truck (8), which is coupled to a cable between the lowermost and the uppermost lifting tube (4, 6) (9) and the lifting tubes (4, 5, 6) moves against each other.
The pallet truck (8) is connected to the lifting spindle (7) via a coupling nut (10) which engages in the lifting spindle (7) and can be disengaged, in the engaged state on the spindle (7).
This coupling nut (10) comprises the lifting spindle (7) completely and has with respect to the Schraugbachse on one side the thread of the lifting spindle (7) corresponding internal thread (10a), which engages in the coupled state in the spindle thread. On the other half, the coupling nut (10) on a cutout (10b), in which the lifting spindle (7) is freely rotatable in the disengaged state.
Outside, the coupling nut (10) has a cuboid shape and is arranged in a likewise cuboid coupling housing (11) displaceable perpendicular to the screw axis. Between the coupling nut (10) and a housing wall springs (13) are arranged in bores (14) in the coupling nut (10), which press the coupling nut (10) from the wall of the coupling housing (11) in the disengaged position. On the springs (13) opposite side of the coupling nut (10) in the clutch housing (11) an eccentric (15) is arranged, through which the coupling nut (10) against the spring force can be pressed into the engaged position and locked there. In principle, instead of the eccentric (15), another printing or Clamping device can be used. So z. B. the coupling nut (10) also pressed by a screw in the engaged position and held there. Also, of course, the reverse case is conceivable that the coupling nut (10) by return members, such. B. Springs, is normally held in the engaged position and is disengaged only when needed by means of a pressure or clamping member.
The lifting carriage (8) lying above the coupling housing (11) is connected to the coupling housing (11) via a tube (12) comprising the lifting spindle (7), so that the coupling nut (10) is also connected to the lifting carriage via the coupling housing (11) (8) is connected.
The top of the tube (12) arranged lifting truck (8) consists essentially of a perpendicular to the connecting tube (12) stationary cross member (20) which carries at both ends rotatably mounted pulleys (21) for the cable (9).
The cable (9) is of a with one end in the lower region of the lowermost tube (4) attached, from there over the pulleys (21) of the lift truck (8) and parallel to the cross member (20) lift truck (8) stretched and with his other end in the lower region of the uppermost lifting tube (6) attached pull rope (9) formed.
Between the truck (8) and the base (22) of the lifting telescope (3) is parallel to the lifting spindle (7) a damping member (23), for example a gas spring, arranged.
In a method of the lift truck (8), the innermost uppermost lifting tube (6) relative to the outermost lifting tube (4) is moved. When moving apart then the middle tube (5) over
AT 405 368 mit between the nested ends of the upper and middle tube (5, 6) arranged extension stops from the top inner tube (6) pulled along.
Between the merged ends of the bottom and the middle tube (4, 5) limit stops (24) are arranged, which prevent withdrawal of the central inner tube (5) from the outer lower tube (4).
In the present embodiment, the lifting tubes (4, 5, 6) are formed by rectangular in cross section tubes.
Fig. 4 shows a particularly flat, space-saving embodiment of a Hubteleskops (3) according to the invention. To accommodate the motor (17), a motor box is arranged in this version at the bottom, outer tube (4) with extension of the tube interior.
For guiding the tubes (4, 5, 6) into one another, the lower outer lifting tube (4) has four guide angles (24) at the upper end, the middle lifting tube (5) has four guide angles (24) at the lower end and at the upper end ) and the upper inner lifting tube at the lower end outside four guide angle (24). These guide angles (24) serve simultaneously as extension and limit stops (24).
The guide angle (24) are held with adjusting screws on the lifting tubes (4, 5, 6) and adjustable in the sliding system to the adjacent lifting tube (4, 5, 6). Alternatively, the guide angles (24) can also be integrally formed on the lifting tubes (4, 5, 6).
To adjust the eccentric (15) and thus for coupling and uncoupling of the coupling nut (10) in the lifting spindle (7) of the eccentric (15) via a parallel to the lifting spindle (7) extending, torsionally stable telescopic rod (16) with an upper Area of the uppermost tube (6) from the lifting telescope (3) led out control lever (17) rotatably connected. The torsion-stable telescopic rod (16) preferably consists of telescoping square tubes.
1, the bed frame (2) is pivotable in a pivot axis (25) on a lifting telescope (3) and with a long hole guide (26) extending in the longitudinal direction of the bed frame in a pivot axis (25). a second lifting telescope (3) pivotally mounted and longitudinally displaceable.
The two Hubteleskope (3) with its outer lifting tube (4) to each of a cross member of the underframe (1) by screws, welding od. Like. Attached. The cross members (27) have lockable rollers (28). In the cross members (27) and a longitudinal beam connecting them (29), the locking linkage with external foot lever (33) for all four rollers (28) housed hidden.
The bed frame (2) accommodates an elevation surface frame (32) which can be swiveled vertically by means of an electric drive (30) and lever (31).
Contents4
5 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| EP0539089A1 | Cites | European Patent Office (EPO) | Search report |
| EP0606575A1 | Cites | European Patent Office (EPO) | Search report |
| DE4322227C1 | Cites | Germany | Search report |
| US4545084A | Cites | United States of America | Search report |
| US4559655A | Cites | United States of America | Search report |
| US5329657A | Cites | United States of America | Search report |
5 members in 2 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 19528179 | Germany | A | |
| 19528179 | – | – | – |
| DE1995128179 | – | – | – |
Members5
| Document | Office | Kind | |
|---|---|---|---|
| DE19528179A1 | Germany | A1 | |
| DE19604549A1 | Germany | A1 | |
| AT405368BThis record | Austria | B | |
| DE19528179B4 | Germany | B4 | |
| DE19604549B4 | Germany | B4 |
Numbers
- Publication, DOCDB
- 405368
- Publication, EPODOC
- AT405368B
- Application
- 138296
- Application, DOCDB
- 138296
- Application, EPODOC
- AT19960001382
Titles2
- German
- KRANKEN- ODER PFLEGEBETT
- English
- SICKNESS OR NURSING BED
Classification
- CPC, 4
- A61G7/018
- A61G7/005
- A61G7/012
- A61G7/0528
- IPC, 4
- A61G7 005
- A61G7 012
- A61G7 018
- A61G7 05