EP2567931A1 - Lifting device - Google Patents

Lifting device Download PDF

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Publication number
EP2567931A1
EP2567931A1 EP12183359A EP12183359A EP2567931A1 EP 2567931 A1 EP2567931 A1 EP 2567931A1 EP 12183359 A EP12183359 A EP 12183359A EP 12183359 A EP12183359 A EP 12183359A EP 2567931 A1 EP2567931 A1 EP 2567931A1
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EP
European Patent Office
Prior art keywords
lifting device
lifting
adjusting element
columns
individual plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12183359A
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German (de)
French (fr)
Other versions
EP2567931B1 (en
Inventor
Frank Exner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RK Rose and Krieger GmbH and Co KG Verbindungs und Positioniersysteme
Original Assignee
RK Rose and Krieger GmbH and Co KG Verbindungs und Positioniersysteme
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Publication date
Application filed by RK Rose and Krieger GmbH and Co KG Verbindungs und Positioniersysteme filed Critical RK Rose and Krieger GmbH and Co KG Verbindungs und Positioniersysteme
Publication of EP2567931A1 publication Critical patent/EP2567931A1/en
Application granted granted Critical
Publication of EP2567931B1 publication Critical patent/EP2567931B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/20—Telescopic guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
    • B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
    • B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/02—Underframes
    • A47B13/021—Fastening devices of the feet or legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor

Definitions

  • the present invention relates to a lifting device with at least two telescopic lifting columns, each with an electromotive drive unit, a base on which the lifting columns are fixed, and a stand with the extendable telescopic tubes of the lifting columns in operative connection worktop.
  • the lifting device according to the invention could also be referred to as a work table.
  • the height adjustment of the worktop is necessary, for example, when people of different sizes work on the lifting device.
  • the adjustment of the worktop can then be made individually.
  • Each telescopic lifting column has a fixed to the stand, outer guide tube and at least one movable relative to the guide tube telescopic tube.
  • the drive units are usually spindle drives, which are equipped with an electromotive geared motor, whereby embodiments are possible in which the extendable telescopic tubes of all lifting columns driven by a common drive geared motor become.
  • the guide tubes and telescopic tubes are made of extruded aluminum profiles.
  • each lifting column is equipped with a drive gear motor, it is unavoidable that the telescopic tubes are not extended in synchronism, the deviations are relatively small. However, this leads to tensions of the worktop and overloading of the drive parts of the drive unit. In the event of overloading, it can be assumed that the drive parts are subject to increased wear and that the operating time is correspondingly reduced.
  • the invention has for its object to design a lifting device of the type described in more detail so that in a structurally simple manner tensions of the worktop and overloading of the drive parts of the drive units can be avoided.
  • the stated object is achieved in that at least between the worktop and the retractable and extendable telescopic tubes of the lifting columns, a planar adjusting element for aligning the worktop is provided.
  • the adjustment could also be seen as an intermediate element or as an adapter to align the worktop relative to the lifting columns so that it is in an exact horizontal plane.
  • the tension is avoided, so that the drive parts are not overloaded, so that they can perform correspondingly smooth adjustment movements.
  • the adjustment must be designed so that a sensitive adjustment is possible.
  • the planar adjusting element has two spaced individual plates, and that elastic damping elements are provided between the individual plates, which are fastened by means of fastening screws on the upper and / or lower single plate.
  • these damping elements are fixed to the upper single plate, since such a design is easy to install and also facilitates the setting.
  • the damping elements are rubber springs in one embodiment, so that the planar adjusting element has a, albeit low elasticity.
  • damping elements are firmly connected to one of the individual plates, wherein a centrally arranged connecting element is firmly connected to both individual plates.
  • This connecting element is in turn designed in the manner of a rubber spring and therefore elastic and firmly connected by two screwed screws with the upper and lower single plate. The central longitudinal axes of the screws then form an axis for the alignment movement of the adjusting element.
  • a circumferential safety ring is arranged from an elastically deformable material. Since the safety rim is made of an elastic material, it is possible that the individual plates are moved or adjusted relative to each other. In addition, the penetration of dirt in this room is prevented.
  • a particularly structurally simple design for the planar adjusting element is given, if this consists of two spaced intermediate plates, that the lower intermediate plate with the base and the upper intermediate plate are connected to the guide tubes of the lifting columns.
  • the adjustment of the upper intermediate plate to the lower intermediate plate is particularly simple and easy, when the upper and lower intermediate plate by Ausrichthülsen with internal and external threads are in operative connection, so that the alignment is done by rotating the alignment sleeve, with a head, preferably in Shape of a hexagon is equipped.
  • connection is ensured by fastening screws, with each alignment sleeve screwed with its external thread in the upper intermediate plate is, and from the upper and lower side or from the lower side, can be fixed by a threaded hole with a fastening screw. These mounting screws then allow the adjustment of the upper intermediate plate to the lower, since the lower intermediate plate is immovable.
  • the upper planar adjustment element is an elastic alignment element, while the lower adjustment element is a static alignment element.
  • the lifting device is not shown with the lifting columns.
  • the lifting columns are in a preferred embodiment of a fixed outer guide tube and a retractable and extendable telescopic tube.
  • the lifting columns are connected in a manner not shown fixed to a stand.
  • the retractable and extendable telescopic tubes are in the FIG. 1 connected flat adjusting element 10 is connected. This adjusting element 10 is fixed to the worktop, not shown connected, so indirectly connected to the telescopic tubes.
  • Each lifting column has an electromotive drive unit, which has, for example, a drive geared motor, a rotatably drivable spindle and a spindle nut mounted thereon and secured against rotation.
  • the adjusting element 10 consists of two mutually spaced individual plates 11, 12 and arranged between the individual plates damping elements 13, wherein a similar connecting element 14 is centrally arranged, which in the FIG. 2 is shown.
  • the damping elements 13 are formed as rubber springs, which are connected by means of countersunk screws 15 with the upper, the worktop associated with individual plate 11.
  • This connecting element 14 is elastic, but in contrast to the damping elements 13 by two countersunk screws 16, 17, which are aligned with each other, connected to the upper single plate 11 and the lower single plate 12.
  • the lifting device is equipped in the illustrated embodiment with four lifting columns.
  • four recesses or openings 18 are provided in the adjusting element 10, in which engage the end portion of the telescopic telescopic tubes. Relative to the longitudinal and transverse axes of the adjusting element 10, these recesses 18 are arranged in mirror image to each other.
  • the recesses 18 are quadrangular in the basic contour, but the edges are rounded.
  • a circumferential safety rim 28 is inserted from an elastic material in the edge regions.
  • planar adjusting element 19 consists of two spaced-apart intermediate plates 20, 21. These intermediate plates 20, 21 are connected in the illustrated embodiment via four arranged in the corners Ausrichthülsen 22 and the alignment sleeves 22 cross-fastening screws 23 together.
  • the fastening screws 23 can according to the FIG. 3 both from above and from below be screwed into the alignment sleeves 22 ago.
  • the arrangement of the alignment sleeves 22 in the corner areas offers the advantage that they are not covered by the base, so that they are accessible.
  • the fastening screws 23 are screwed from above into the alignment sleeves 22, since they are then more accessible.
  • a dragonfly 24 is used in the upper intermediate plate 20, but mainly serves the ongoing control.
  • FIG. 4 shows the alignment sleeve 22 as a detail.
  • the alignment sleeves 22 are provided with heads 25, preferably in the form of a hexagon, the contours of which protrude with respect to the cylindrical shaft.
  • the alignment sleeves are provided with external threads 26 and internally threaded holes 27.
  • the internally threaded holes 27 are through holes.
  • the FIGS. 5 and 6 show that the alignment sleeves 22 are screwed into threaded holes of the upper intermediate plate 20.
  • the invention is not limited to the illustrated embodiment. It is essential that the worktop is fixed to an existing of two individual plates 11, 12 adjusting element 10 so that it can be rotated exactly in a horizontal position. Depending on the local conditions, it may be necessary to compensate for unevenness in the floor or in the floor covering that between the lifting columns and the base, a further planar adjustment member 19 is provided, which consists of two intermediate plates 20, 21 which are movable relative to each other.
  • the lifting device can also be referred to as a lifting device.

Abstract

The lifting device comprises two telescopic lifting columns with an electromotive drive unit and a pedestal. The lifting columns are fixed on the pedestal, where a work plate is arranged in operative connection with the extended telescopic tubes of the lifting column. A plane adjusting element (10) is provided between the work plate and the extended telescopic tubes of the lifting column for aligning the work plate.

Description

Die vorliegende Erfindung betrifft eine Hubeinrichtung mit wenigstens zwei teleskopierbaren Hubsäulen mit jeweils einer elektromotorischen Antriebseinheit, einem Standfuß, an dem die Hubsäulen festgelegt sind, und einer mit den ausfahrbaren Teleskoprohren der Hubsäulen in Wirkverbindung stehenden Arbeitsplatte.The present invention relates to a lifting device with at least two telescopic lifting columns, each with an electromotive drive unit, a base on which the lifting columns are fixed, and a stand with the extendable telescopic tubes of the lifting columns in operative connection worktop.

Die erfindungsgemäße Hubeinrichtung könnte auch als Arbeitstisch bezeichnet werden. Die Höhenverstellung der Arbeitsplatte ist beispielsweise notwendig, wenn Personen unterschiedlicher Größe an der Hubeinrichtung arbeiten. Die Einstellung der Arbeitsplatte kann dann individuell vorgenommen werden.The lifting device according to the invention could also be referred to as a work table. The height adjustment of the worktop is necessary, for example, when people of different sizes work on the lifting device. The adjustment of the worktop can then be made individually.

Es sind wenigstens zwei teleskopierbare Hubsäulen notwendig, da dadurch die Stabilität der Hubeinrichtung erhöht wird und auch relativ schwere auf der Arbeitsplatte abgestellte Lasten in der Höhe verstellt werden können.There are at least two telescopic lifting columns necessary, since thereby the stability of the lifting device is increased and also relatively heavy parked on the worktop loads can be adjusted in height.

Jede teleskopierbare Hubsäule weist ein fest mit dem Standfuß verbundenes, äußeres Führungsrohr und wenigstens ein gegenüber dem Führungsrohr verfahrbares Teleskoprohr auf. Die Antriebseinheiten sind üblicherweise Spindeltriebe, die mit einem elektromotorischen Getriebemotor ausgestattet sind, wobei auch Ausführungen möglich sind, bei denen die ausfahrbaren Teleskoprohre aller Hubsäulen von einem gemeinsamen Antriebsgetriebemotor angetrieben werden. Die Führungsrohre und die Teleskoprohre bestehen aus Aluminiumprofilen, die im Strangpressverfahren hergestellt wurden.Each telescopic lifting column has a fixed to the stand, outer guide tube and at least one movable relative to the guide tube telescopic tube. The drive units are usually spindle drives, which are equipped with an electromotive geared motor, whereby embodiments are possible in which the extendable telescopic tubes of all lifting columns driven by a common drive geared motor become. The guide tubes and telescopic tubes are made of extruded aluminum profiles.

Insbesondere, wenn jede Hubsäule mit einem Antriebsgetriebemotor ausgestattet ist, ist es unvermeidbar, dass die Teleskoprohre nicht im Synchronlauf ausgefahren werden, wobei die Abweichungen relativ gering sind. Dies führt jedoch zu Verspannungen der Arbeitsplatte und zu einer Überbelastung der Antriebsteile der Antriebseinheit. Bei einer Überbelastung ist davon auszugehen, dass die Antriebsteile einem erhöhten Verschleiß unterliegen, und dass die Betriebsdauer entsprechend herabgesetzt wird.In particular, if each lifting column is equipped with a drive gear motor, it is unavoidable that the telescopic tubes are not extended in synchronism, the deviations are relatively small. However, this leads to tensions of the worktop and overloading of the drive parts of the drive unit. In the event of overloading, it can be assumed that the drive parts are subject to increased wear and that the operating time is correspondingly reduced.

Der Erfindung liegt die Aufgabe zugrunde, eine Hubeinrichtung der eingangs näher beschriebenen Art so auszulegen, dass in konstruktiv einfacher Weise Verspannungen der Arbeitsplatte und Überbelastungen der Antriebsteile der Antriebseinheiten vermieden werden.The invention has for its object to design a lifting device of the type described in more detail so that in a structurally simple manner tensions of the worktop and overloading of the drive parts of the drive units can be avoided.

Die gestellte Aufgabe wird dadurch gelöst, dass zumindest zwischen der Arbeitsplatte und den ein- und ausfahrbaren Teleskoprohren der Hubsäulen ein flächiges Justierelement zum Ausrichten der Arbeitsplatte vorgesehen ist.The stated object is achieved in that at least between the worktop and the retractable and extendable telescopic tubes of the lifting columns, a planar adjusting element for aligning the worktop is provided.

Das Justierelement könnte auch als Zwischenelement oder als Adapter gesehen werden, um die Arbeitsplatte gegenüber den Hubsäulen so auszurichten, dass sie in einer exakt horizontalen Ebene steht. Dadurch werden die Verspannungen vermieden, so dass auch die Antriebsteile nicht überlastet werden, so dass sie entsprechend leichtgängig die Verstellbewegungen durchführen können. Um diese exakt horizontale Lage der Arbeitsplatte zu erreichen, muss das Justierelement so ausgelegt sein, dass eine feinfühlige Verstellung möglich ist.The adjustment could also be seen as an intermediate element or as an adapter to align the worktop relative to the lifting columns so that it is in an exact horizontal plane. As a result, the tension is avoided, so that the drive parts are not overloaded, so that they can perform correspondingly smooth adjustment movements. To achieve this exact horizontal position of the worktop, the adjustment must be designed so that a sensitive adjustment is possible.

In einer bevorzugten Ausführung ist vorgesehen, dass das flächige Justierelement zwei beabstandete Einzelplatten aufweist, und dass zwischen den Einzelplatten elastische Dämpfungselemente vorgesehen sind, die mittels Befestigungsschrauben an der oberen und/oder unteren Einzelplatte befestigt sind. Bevorzugt sind diese Dämpfungselemente jedoch an der oberen Einzelplatte festgelegt, da eine solche Ausführung montagefreundlich ist und auch die Einstellung erleichtert. Die Dämpfungselemente sind in einer Ausführung Gummifedern, so dass das flächige Justierelement eine, wenn auch geringe Elastizität aufweist.In a preferred embodiment it is provided that the planar adjusting element has two spaced individual plates, and that elastic damping elements are provided between the individual plates, which are fastened by means of fastening screws on the upper and / or lower single plate. Preferably, however, these damping elements are fixed to the upper single plate, since such a design is easy to install and also facilitates the setting. The damping elements are rubber springs in one embodiment, so that the planar adjusting element has a, albeit low elasticity.

Besonders vorteilhaft ist, wenn die Dämpfungselemente mit einer der Einzelplatten fest verbunden sind, wobei ein zentrisch angeordnetes Verbindungselement mit beiden Einzelplatten fest verbunden ist. Dieses Verbindungselement ist wiederum nach Art einer Gummifeder und demzufolge elastisch gestaltet und durch zwei eingedrehte Schrauben mit der oberen und der unteren Einzelplatte fest verbunden. Die Mittellängsachsen der Schrauben bilden dann eine Achse für die Ausrichtbewegung des Justierelementes.It is particularly advantageous if the damping elements are firmly connected to one of the individual plates, wherein a centrally arranged connecting element is firmly connected to both individual plates. This connecting element is in turn designed in the manner of a rubber spring and therefore elastic and firmly connected by two screwed screws with the upper and lower single plate. The central longitudinal axes of the screws then form an axis for the alignment movement of the adjusting element.

Damit der Raum zwischen der oberen und der unteren Einzelplatte nicht zugänglich ist, ist vorgesehen, dass aus Sicherheitsgründen zwischen den Einzelplatten in den Randbereichen ein umlaufender Sicherheitskranz aus einem elastisch verformbaren Material angeordnet ist. Da der Sicherheitskranz aus einem elastischen Material besteht, ist es möglich, dass die Einzelplatten relativ zueinander bewegt bzw. eingestellt werden. Außerdem wird das Eindringen von Schmutz in diesen Raum verhindert.Thus, the space between the upper and the lower single plate is not accessible, it is provided that for safety reasons between the individual plates in the edge regions a circumferential safety ring is arranged from an elastically deformable material. Since the safety rim is made of an elastic material, it is possible that the individual plates are moved or adjusted relative to each other. In addition, the penetration of dirt in this room is prevented.

Es ist allgemein bekannt, dass die raumseitigen Flächen von Fußböden nicht exakt in einer horizontalen Ebene verlaufen, bedingt durch die Bauweise, beispielsweise gegossene Böden oder Decken mit einer darauf aufgebrachten Schicht aus Zementestrich. Solche Umstände führen dazu, dass der Standfuß entsprechend schräg steht, wenn auch nur geringfügig. Dies führt dazu, dass die Hubsäulen bzw. die äußeren Führungsrohre nicht exakt vertikal verlaufen. Um auch hier eine Ausrichtung zu ermöglichen, ist in weiterer Ausgestaltung vorgesehen, dass zwischen dem Standfuß und den äußeren Führungsrohren der Hubsäulen ein weiteres flächiges Einstellelement zum Ausrichten der Hubsäulen vorgesehen ist. Dadurch werden die Führungsrohre in eine exakt vertikale Stellung gebracht.It is well known that the room-side surfaces of floors do not run exactly in a horizontal plane, due to the construction, such as cast floors or ceilings with a layer of cement screed applied thereto. Such circumstances cause the base to tilt accordingly, if only slightly. As a result, the lifting columns or the outer guide tubes do not run exactly vertically. In order to allow an alignment here, is provided in a further embodiment, that between the base and the outer guide tubes of the lifting columns, a further planar adjusting element for aligning the lifting columns is provided. As a result, the guide tubes are brought into an exactly vertical position.

Eine besonders konstruktiv einfache Ausführung für das flächige Einstellelement ist gegeben, wenn dieses aus zwei beabstandeten Zwischenplatten besteht, dass die untere Zwischenplatte mit dem Standfuß und die obere Zwischenplatte mit den Führungsrohren der Hubsäulen verbunden sind. Die Einstellung der oberen Zwischenplatte zur unteren Zwischenplatte ist besonders einfach und leicht, wenn die obere und die untere Zwischenplatte durch Ausrichthülsen mit Innen- und Außengewinden miteinander in Wirkverbindung stehen, so dass die Ausrichtung durch Verdrehen der Ausrichthülse erfolgt, die mit einem Kopf, vorzugsweise in Form eines Sechskantes ausgestattet ist. Die Verbindung ist jedoch durch Befestigungsschrauben gewährleistet, wobei jede Ausrichthülse mit ihrem Außengewinde in die obere Zwischenplatte eingedreht ist, und von der oberen und unteren Seite hindurch oder von der unteren Seite hinein, durch eine Gewindebohrung mit einer Befestigungsschraube festsetzbar ist. Diese Befestigungsschrauben ermöglichen dann die Verstellung der oberen Zwischenplatte zur unteren, da die untere Zwischenplatte unbeweglich ist.A particularly structurally simple design for the planar adjusting element is given, if this consists of two spaced intermediate plates, that the lower intermediate plate with the base and the upper intermediate plate are connected to the guide tubes of the lifting columns. The adjustment of the upper intermediate plate to the lower intermediate plate is particularly simple and easy, when the upper and lower intermediate plate by Ausrichthülsen with internal and external threads are in operative connection, so that the alignment is done by rotating the alignment sleeve, with a head, preferably in Shape of a hexagon is equipped. However, the connection is ensured by fastening screws, with each alignment sleeve screwed with its external thread in the upper intermediate plate is, and from the upper and lower side or from the lower side, can be fixed by a threaded hole with a fastening screw. These mounting screws then allow the adjustment of the upper intermediate plate to the lower, since the lower intermediate plate is immovable.

Damit zum Ausrichten bzw. Einstellen des Justierelementes und des Einstellelementes keine Wasserwaage notwendig ist, ist vorgesehen, dass in dem Justierelement und/oder dem Einstellelement wenigstens eine Libelle installiert ist, wobei diese auch ausschließlich der laufenden Kontrolle dient.So that no spirit level is necessary for aligning or adjusting the adjusting element and the adjusting element, it is provided that at least one level is installed in the adjusting element and / or the adjusting element, which also serves exclusively the ongoing control.

Das obere flächige Justierelement ist ein elastisches Ausrichtelement, während das untere Einstellelement ein statisches Ausrichtelement ist.The upper planar adjustment element is an elastic alignment element, while the lower adjustment element is a static alignment element.

Anhand der beiliegenden Zeichnungen wird die Erfindung noch näher erläutert.Reference to the accompanying drawings, the invention will be explained in more detail.

Es zeigen:

Figur 1
das der Arbeitsplatte zugeordnete flächige Justierelement in einer perpektivischen Darstellung, teilweise aufgeschnitten,
Figur 2
das zentrisch angeordnete Verbindungselement gemäß der Figur 1 als Einzelheit,
Figur 3
das dem Standfuß zugeordnete flächige Einstellelement in einer perspektivischen Darstellung,
Figur 4
die Gewindehülse als Einzelheit zur Verbindung der Zwischenplatten des Einstellelementes und
Figuren 5 und 6
die Verbindungen der Zwischenplatten mittels einer Befestigungsschraube in zwei verschiedenen Ausführungen.
Show it:
FIG. 1
the flat plate associated with the adjustment element in a perpektivischen representation, partially cut open,
FIG. 2
the centrally arranged connecting element according to the FIG. 1 as a detail,
FIG. 3
the stand associated with the planar adjusting element in a perspective view,
FIG. 4
the threaded sleeve as a detail for connecting the intermediate plates of the adjustment and
FIGS. 5 and 6
the connections of the intermediate plates by means of a fastening screw in two different versions.

Aus Gründen der vereinfachten Darstellung ist die Hubeinrichtung mit den Hubsäulen nicht dargestellt. Die Hubsäulen bestehen in einer bevorzugten Ausführung aus einem fest stehenden äußeren Führungsrohr und einem ein- und ausfahrbaren Teleskoprohr. Die Hubsäulen sind in nicht dargestellter Weise fest mit einem Standfuß verbunden. Die ein- und ausfahrbaren Teleskoprohre sind mit dem in der Figur 1 dargestellten flächigen Justierelement 10 verbunden. Dieses Justierelement 10 ist fest mit der nicht dargestellten Arbeitsplatte verbunden, also indirekt mit den Teleskoprohren verbunden. Jede Hubsäule weist eine elektromotorische Antriebseinheit auf, die beispielsweise einen Antriebsgetriebemotor, eine rotierend antreibbare Spindel und eine darauf aufgesetzte, gegen Drehung gesicherte Spindelmutter aufweist.For reasons of simplified illustration, the lifting device is not shown with the lifting columns. The lifting columns are in a preferred embodiment of a fixed outer guide tube and a retractable and extendable telescopic tube. The lifting columns are connected in a manner not shown fixed to a stand. The retractable and extendable telescopic tubes are in the FIG. 1 connected flat adjusting element 10 is connected. This adjusting element 10 is fixed to the worktop, not shown connected, so indirectly connected to the telescopic tubes. Each lifting column has an electromotive drive unit, which has, for example, a drive geared motor, a rotatably drivable spindle and a spindle nut mounted thereon and secured against rotation.

Das Justierelement 10 besteht aus zwei im Abstand zueinander angeordneten Einzelplatten 11, 12 und zwischen den Einzelplatten angeordnete Dämpfungselemente 13, wobei zentrisch ein ähnliches Verbindungselement 14 angeordnet ist, welches in der Figur 2 dargestellt ist. Die Dämpfungselemente 13 sind als Gummifedern ausgebildet, die mittels Senkkopfschrauben 15 mit der oberen, der Arbeitsplatte zugeordneten Einzelplatte 11 verbunden sind. Dieses Verbindungselement 14 ist elastisch, jedoch im Gegensatz zu den Dämpfungselementen 13 durch zwei Senkkopfschrauben 16, 17, die fluchtend zueinander stehen, mit der oberen Einzelplatte 11 und der unteren Einzelplatte 12 verbunden.The adjusting element 10 consists of two mutually spaced individual plates 11, 12 and arranged between the individual plates damping elements 13, wherein a similar connecting element 14 is centrally arranged, which in the FIG. 2 is shown. The damping elements 13 are formed as rubber springs, which are connected by means of countersunk screws 15 with the upper, the worktop associated with individual plate 11. This connecting element 14 is elastic, but in contrast to the damping elements 13 by two countersunk screws 16, 17, which are aligned with each other, connected to the upper single plate 11 and the lower single plate 12.

Wie die Figur 1 zeigt, ist die Hubeinrichtung im dargestellten Ausführungsbeispiel mit vier Hubsäulen ausgestattet. Dazu sind in dem Justierelement 10 vier Ausnehmungen bzw. Öffnungen 18 vorgesehen, in die die Endbereich der ausfahrbaren Teleskoprohre eingreifen. Bezogen auf die Längs- und Querachse des Justierelementes 10 sind diese Ausnehmungen 18 spiegelbildlich zueinander angeordnet. Die Ausnehmungen 18 sind in der Grundkontur viereckig, jedoch sind die Kanten abgerundet.As the FIG. 1 shows, the lifting device is equipped in the illustrated embodiment with four lifting columns. For this purpose, four recesses or openings 18 are provided in the adjusting element 10, in which engage the end portion of the telescopic telescopic tubes. Relative to the longitudinal and transverse axes of the adjusting element 10, these recesses 18 are arranged in mirror image to each other. The recesses 18 are quadrangular in the basic contour, but the edges are rounded.

Es ergibt sich aus der Figur 1, dass die obere Einzelplatte 11 gegenüber der unteren Einzelplatte 12 einstellbar bzw. relativ bewegt werden kann. Die Mittellängsachsen der beiden Senkkopfschrauben 16, 17 bilden dann eine Bezugsachse. Die Einstellung erfolgt durch Verdrehen der Senkkopfschrauben 15.It follows from the FIG. 1 in that the upper single plate 11 can be moved or moved relative to the lower single plate 12. The central longitudinal axes of the two countersunk screws 16, 17 then form a reference axis. The adjustment is done by turning the countersunk screws 15.

Damit in den Raum zwischen der Einzelplatte 11 und der Einzelplatte 12 nicht eingegriffen werden kann, ist in den Randbereichen ein umlaufender Sicherheitskranz 28 aus einem elastischen Material eingesetzt.Thus, in the space between the single plate 11 and the single plate 12 can not be intervened, a circumferential safety rim 28 is inserted from an elastic material in the edge regions.

Das in der Figur 3 dargestellte flächige Einstellelement 19 besteht aus zwei im Abstand zueinander angeordneten Zwischenplatten 20, 21. Diese Zwischenplatten 20, 21 sind im dargestellten Ausführungsbeispiel über vier in den Eckbereichen angeordnete Ausrichthülsen 22 und die Ausrichthülsen 22 durchgreifende Befestigungsschrauben 23 miteinander verbunden. Die Befestigungsschrauben 23 können gemäß der Figur 3 sowohl von oben als auch von unten her in die Ausrichthülsen 22 eingedreht werden. Die Anordnung der Ausrichthülsen 22 in den Eckbereichen bietet den Vorteil, dass sie durch den Standfuß nicht verdeckt werden, so dass sie zugänglich sind. Bevorzugt werden die Befestigungsschrauben 23 jedoch von oben her in die Ausrichthülsen 22 eingedreht, da sie dann besser zugänglich sind.That in the FIG. 3 shown planar adjusting element 19 consists of two spaced-apart intermediate plates 20, 21. These intermediate plates 20, 21 are connected in the illustrated embodiment via four arranged in the corners Ausrichthülsen 22 and the alignment sleeves 22 cross-fastening screws 23 together. The fastening screws 23 can according to the FIG. 3 both from above and from below be screwed into the alignment sleeves 22 ago. The arrangement of the alignment sleeves 22 in the corner areas offers the advantage that they are not covered by the base, so that they are accessible. Preferably, however, the fastening screws 23 are screwed from above into the alignment sleeves 22, since they are then more accessible.

Zur genauen Ausrichtung, die jedoch auch mit einer Wasserwaage erfolgen kann, ist in der oberen Zwischenplatte 20 eine Libelle 24 eingesetzt, die aber vorwiegend der laufenden Kontrolle dient.For exact alignment, which can also be done with a spirit level, a dragonfly 24 is used in the upper intermediate plate 20, but mainly serves the ongoing control.

Die Figur 4 zeigt die Ausrichthülse 22 als Einzelheit. Die Ausrichthülsen 22 sind mit Köpfen 25, vorzugsweise in Form eines Sechskantes, versehen, deren Konturen gegenüber dem zylindrischen Schaft vorstehen. Die Ausrichthülsen sind mit Außengewinden 26 und Innengewindebohrungen 27 versehen. Die Innengewindebohrungen 27 sind Durchgangsbohrungen. Die Figuren 5 und 6 zeigen, dass die Ausrichthülsen 22 in Gewindebohrungen der oberen Zwischenplatte 20 eingeschraubt sind.The FIG. 4 shows the alignment sleeve 22 as a detail. The alignment sleeves 22 are provided with heads 25, preferably in the form of a hexagon, the contours of which protrude with respect to the cylindrical shaft. The alignment sleeves are provided with external threads 26 and internally threaded holes 27. The internally threaded holes 27 are through holes. The FIGS. 5 and 6 show that the alignment sleeves 22 are screwed into threaded holes of the upper intermediate plate 20.

Es ergibt sich aus den Figuren 4 und 5, dass durch Verdrehen der Ausrichthülsen 23 die obere Zwischenplatte 20 gegenüber der unteren Zwischenplatte 21 bewegt werden kann, so dass die Führungsrohre der Hubsäulen exakt vertikal stehen. Die Festsetzung der Ausrichthülsen erfolgt durch die Befestigungsschrauben 23.It follows from the FIGS. 4 and 5 in that, by rotating the alignment sleeves 23, the upper intermediate plate 20 can be moved relative to the lower intermediate plate 21, so that the guide tubes of the lifting columns are exactly vertical. The fixing of the alignment sleeves is carried out by the fastening screws 23.

Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Wesentlich ist, dass die Arbeitsplatte an einem aus zwei Einzelplatten 11, 12 bestehenden Justierelement 10 festgelegt ist, so dass sie exakt in eine horizontale Lage gedreht werden kann. Je nach den örtlichen Gegebenheiten kann es zum Ausgleich von Unebenheiten im Fußboden oder im Fußbodenbelag notwendig sein, dass zwischen den Hubsäulen und dem Standfuß ein weiteres flächiges Einstellelement 19 vorgesehen wird, welches aus zwei Zwischenplatten 20, 21 besteht, die relativ zueinander bewegbar sind. Die Hubeinrichtung kann auch als Hubgerätschaft bezeichnet werden.The invention is not limited to the illustrated embodiment. It is essential that the worktop is fixed to an existing of two individual plates 11, 12 adjusting element 10 so that it can be rotated exactly in a horizontal position. Depending on the local conditions, it may be necessary to compensate for unevenness in the floor or in the floor covering that between the lifting columns and the base, a further planar adjustment member 19 is provided, which consists of two intermediate plates 20, 21 which are movable relative to each other. The lifting device can also be referred to as a lifting device.

Claims (10)

Hubeinrichtung mit wenigstens zwei teleskopierbaren Hubsäulen mit jeweils einer elektromotorischen Antriebseinheit, einem Standfuß, an dem die Hubsäulen festgelegt sind, und einer mit den ausfahrbaren Teleskoprohren der Hubsäulen in Wirkverbindung stehenden Arbeitsplatte, dadurch gekennzeichnet, dass zumindest zwischen der Arbeitsplatte und den ein- und ausfahrbaren Teleskoprohren der Hubsäulen ein flächiges Justierelement (10) zum Ausrichten der Arbeitsplatte vorgesehen ist.Lifting device with at least two telescopic lifting columns, each with an electric motor drive unit, a base on which the lifting columns are fixed, and one with the extendable telescopic tubes of the lifting columns in operative connection worktop, characterized in that at least between the countertop and retractable telescopic tubes the lifting columns a planar adjusting element (10) is provided for aligning the worktop. Hubeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das flächige Justierelement zwei beabstandete Einzelplatten (11, 12) aufweist, und dass zwischen den Einzelplatten (11, 12) elastische Dämpfungselemente (13) vorgesehen sind, die mittels Befestigungsschrauben (15) an der oberen und/oder unteren Einzelplatte (11, 12) befestigt sind.Lifting device according to claim 1, characterized in that the planar adjusting element has two spaced individual plates (11, 12), and that between the individual plates (11, 12) elastic damping elements (13) are provided by means of fastening screws (15) on the top and / or lower single plate (11, 12) are attached. Hubeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Dämpfungselemente (13) mit einer der Einzelplatten (11, 12) fest verbunden sind, wobei ein zentrisch angeordnetes Verbindungselement (14) mit beiden Einzelplatten (11, 12) fest verbunden ist.Lifting device according to claim 1 or 2, characterized in that the damping elements (13) with one of the individual plates (11, 12) are fixedly connected, wherein a centrally arranged connecting element (14) with two individual plates (11, 12) is firmly connected. Hubeinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Verbindungselement (14) elastisch ausgebildet ist und mittels zweier fluchtender Schrauben (16, 17) mit den Einzelplatten (11, 12) verbunden ist.Lifting device according to claim 3, characterized in that the connecting element (14) is designed to be elastic and by means of two aligned screws (16, 17) with the individual plates (11, 12) is connected. Hubeinrichtung nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das zwischen den Einzelplatten (11, 12) in den Randbereichen ein umlaufender Sicherheitskranz (28) aus einem elastisch verformbaren Material angeordnet ist.Lifting device according to one or more of the preceding claims, characterized in that between the individual plates (11, 12) in the edge regions a circumferential safety rim (28) is arranged made of an elastically deformable material. Hubeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen dem Standfuß und den äußeren Führungsrohren der Hubsäulen ein weiteres flächiges Einstellelement (19) zum Ausrichten der Hubsäulen vorgesehen ist.Lifting device according to claim 1, characterized in that between the base and the outer guide tubes of the lifting columns, a further planar adjusting element (19) is provided for aligning the lifting columns. Hubeinrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das flächige Einstellelement (19) aus zwei beabstandeten Zwischenplatten (20, 21) besteht, dass die untere Zwischenplatte (21) mit dem Standfuß und die obere Zwischenplatte (20) mit den Führungsrohren der Teleskopsäulen verbunden ist.Lifting device according to claim 6, characterized in that the planar adjusting element (19) consists of two spaced intermediate plates (20, 21), that the lower intermediate plate (21) with the base and the upper intermediate plate (20) is connected to the guide tubes of the telescopic columns. Hubeinrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die obere und untere Zwischenplatte (20, 21) durch Ausrichthülsen (22) mit Außengewinden (26) und Innengewindebohrungen miteinander in Wirkverbindung stehen.Lifting device according to claim 6 or 7, characterized in that the upper and lower intermediate plate (20, 21) by Ausrichthülsen (22) with external threads (26) and internally threaded holes are in operative connection with each other. Hubeinrichtung nach Anspruch 8, dadurch gekennzeichnet, dass jede Ausrichthülse (22) mit ihrem Außengewinde (26) in die obere Zwischenplatte (20) eingedreht ist, und mittels eines Kopfes (25) verstellbar ist, und von der oberen und unteren Seiten hindurch oder von der unteren Seite hinein durch eine Gewindebohrung (27) mit einer Befestigungsschraube (23) festsetzbar ist.Lifting device according to claim 8, characterized in that each alignment sleeve (22) with its external thread (26) is screwed into the upper intermediate plate (20), and by means of a head (25) is adjustable, and from the upper and lower sides through or from the lower side in by a threaded bore (27) with a fastening screw (23) can be fixed. Hubeinrichtung nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das in der oberen Zwischenplatte (20) des Einstellelementes (19) eine Libelle (24) eingesetzt ist.Lifting device according to one or more of the preceding claims, characterized in that in the upper intermediate plate (20) of the adjusting element (19) a dragonfly (24) is inserted.
EP12183359.4A 2011-09-08 2012-09-06 Lifting device Active EP2567931B1 (en)

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DE201120051240 DE202011051240U1 (en) 2011-09-08 2011-09-08 lifting device

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Publication number Priority date Publication date Assignee Title
CN108890569A (en) * 2018-07-16 2018-11-27 芜湖辉林奥远自动化科技有限公司 A kind of mechanical equipment process and assemble tooling platform

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8913417U1 (en) * 1989-11-14 1990-04-19 Krech, Siegfried, 4700 Hamm, De
EP0594378A1 (en) * 1992-10-21 1994-04-27 Stryker Corporation Screw lift for hospital bed
JP2007320690A (en) * 2006-05-31 2007-12-13 Nippon Sharyo Seizo Kaisha Ltd Heavy load lifting device and heavy load lifting system
FR2956106A1 (en) * 2010-02-08 2011-08-12 Const Ind De La Mediterranee Lift vehicle for positioning e.g. radioactive waste in height, has cylinders displacably guiding load support frame along six liberty degrees while having clearances slightly wider and precise than those of pre-positioning system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8913417U1 (en) * 1989-11-14 1990-04-19 Krech, Siegfried, 4700 Hamm, De
EP0594378A1 (en) * 1992-10-21 1994-04-27 Stryker Corporation Screw lift for hospital bed
JP2007320690A (en) * 2006-05-31 2007-12-13 Nippon Sharyo Seizo Kaisha Ltd Heavy load lifting device and heavy load lifting system
FR2956106A1 (en) * 2010-02-08 2011-08-12 Const Ind De La Mediterranee Lift vehicle for positioning e.g. radioactive waste in height, has cylinders displacably guiding load support frame along six liberty degrees while having clearances slightly wider and precise than those of pre-positioning system

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EP2567931B1 (en) 2015-06-17
ES2547341T3 (en) 2015-10-05

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