EP1298086B1 - Lifting platform for vehicles - Google Patents

Lifting platform for vehicles Download PDF

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Publication number
EP1298086B1
EP1298086B1 EP02020868A EP02020868A EP1298086B1 EP 1298086 B1 EP1298086 B1 EP 1298086B1 EP 02020868 A EP02020868 A EP 02020868A EP 02020868 A EP02020868 A EP 02020868A EP 1298086 B1 EP1298086 B1 EP 1298086B1
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EP
European Patent Office
Prior art keywords
lifting platform
runway
platform according
lifting
drive mechanism
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.)
Expired - Fee Related
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EP02020868A
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German (de)
French (fr)
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EP1298086A1 (en
Inventor
Hans Dipl.-Ing. Nussbaum
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Otto Nussbaum GmbH and Co KG
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Otto Nussbaum GmbH and Co KG
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Publication of EP1298086A1 publication Critical patent/EP1298086A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions

Definitions

  • the invention relates to a lifting platform for motor vehicles with lifting columns, on which two rails parallel to each other for spacing the vehicle wheels are vertically movable, at least one rail is also adjustable transversely to its longitudinal extent to the lift adjust different track widths, and being the adjustable track at least two lifting columns are assigned.
  • Lifts of the type described above are mainly used as four-column lifts built, with each track near its ends on a pair of lifting columns is vertically movable.
  • the object of the present invention is a Lift with the features of the preamble of claim 1 with respect to Adjustability of the rails or at least one rail in the transverse direction to improve, both in terms of the adjustment range, as well as the Synchronization of the adjustment movement relative to the two lifting columns.
  • the lifting platform according to the invention should be robust and inexpensive Award structure.
  • the invention is therefore based on the idea that the previous sliding guide Replace rail with a swivel bearing and the swivel levers in parallel to align with each other.
  • this parallel guidance allows you to have only one single drive for the adjustment of a travel rail is required because of tilting is excluded.
  • the swivel levers also allow larger ones Adjustment paths than the previous consoles, with another advantage being that the adjustment levers do not protrude under the work area below the vehicle need, as is the case with the consoles depending on the lateral displacement of the Rail is the case.
  • the lifting platform according to the invention is therefore distinguished also by a much better accessibility for the fitters.
  • a manually operated spindle drive can be used as the drive.
  • a motorized, especially an electric one is user-friendly or hydraulic drive connected to a program control. The operator then only needs the vehicle type or the desired one Type in the track width, whereupon the rails automatically fit into the right one Drive width.
  • the positioning of the drive for the cross adjustment is also available various possibilities. So the drive can be directly between the lifting column and Rail may be installed or between the pivot lever on the one hand and the lifting column or the rail on the other.
  • the swivel levers are preferably at the same height level as the travel rails - So arranged in about the same level. But it is also in the Within the scope of the invention, the swivel levers are offset somewhat vertically from the rails to arrange.
  • This tilting device is expediently positioned on the running rail. Alternatively, there is also a position on the swivel lever or on the lifting column into consideration.
  • an essential aspect of the invention is that the front End of the rails (without the sloping ramps) - in the direction of entry seen - only start behind the assigned front lifting columns. Thereby the accessibility of the vehicle is further improved, in particular with regard to the rear wheels on long vehicles, where on conventional lifts often the lifting columns are in the way.
  • FIGs 1 to 3 you can see four lifting columns 1 to 4, which in the usual way are anchored in the workshop floor.
  • Each of these Bearing bracket carries a horizontally pivoted pivot lever 5 to 8, the pivot levers 5 and 6 on one side of the lift parallel to each other are aligned and the pivot lever 7 and 8 on the opposite Side of the lift are also aligned parallel to each other. All four Swing levers are the same length and extend more or less in the Space within the four lifting columns.
  • Both Rails essentially have the known structure.
  • Figure 4 illustrates the structure of the pivot lever using the example of the lifting column 2 and of the lever 6. It can be seen that the pivot lever essentially consists of one rectangular hollow profile 6 a. This hollow profile is either terminal Bearing brackets, as shown on the underside, welded or, as on the Shown on top, a continuous reinforcement plate that protrudes from its Ends of the bearing bores. The swivel bearing on both Lifting column as well as on the running rail is carried out by plain bearings, especially via massive bolts.
  • the drive for the horizontal adjustment movement can be seen in FIG. 4, in the exemplary embodiment in the form of a threaded spindle 11.
  • This threaded spindle is pivotable on the one hand on the running rail 9, on the other hand on the pivot lever 6 stored. It can have a protruding end crossing the swivel arm 6 have to twist the spindle manually, for example via a hexagon bring about.
  • the spindle can also be operated by a motor, where it is recommended to position the servomotor inside the hollow swivel arm 6 to arrange.
  • a scale 12 for the swivel angle is appropriately scaled so that the track width belonging to the respective swivel angle.
  • Figure 5 shows the drive 11 in the form of a manually operated threaded spindle.
  • the threaded spindle is equipped with two flanges 11b and 11c, whereby it is rotatably supported in the flange 11b by its threads while it is rotatable in the flange 11c, but is axially immovable.
  • a rotation of the threaded spindle 11 leads to a relative movement between the two flanges 11b and 11c.
  • it has a hexagon 11a at its projecting end.
  • the threaded spindle is mounted in such a way that the flange 11b on Swivel lever, the flange 11c is mounted on the running rail.
  • Figure 6 shows a special embodiment of the pivot bearing between the pivot arm and mounting rail using the example of the swivel arm 6.
  • a bearing opening 14 is arranged which is considerably larger than the diameter of the bolt 13.
  • Eccentric sleeve 15 In the resulting annular gap is one Eccentric sleeve 15 inserted. It is rotatably mounted on the pin 13 and engages with its eccentric 15a in the bore 14.
  • the eccentric 15a Due to the weight load, the eccentric 15a is on the left of the bolt 13 lying side loaded by the swivel arm 6, whereas on the opposite A small annular gap can remain free - depending on the rotary position of the Eccentric.
  • the lifting platform according to the invention is characterized by extraordinarily favorable adjustability of the rails in the transverse direction with absolute Parallelism. You can also work with very narrow rails, which improves the accessibility of the vehicle. Last but not least, the Position of the lifting columns depending on the spatial conditions in the Workshop can be optimized.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Description

Die Erfindung betrifft eine Hebebühne für Kraftfahrzeuge mit Hubsäulen, an denen zwei mit Abstand parallel nebeneinander angeordnete Fahrschienen zur Aufnahme der Fahrzeugräder vertikal verfahrbar gelagert sind, wobei zumindest eine Fahrschiene auch quer zu ihrer Längserstreckung verstellbar ist, um die Hebebühne an unterschiedliche Spurbreiten anzupassen, und wobei der verstellbaren Fahrschiene zumindest zwei Hubsäulen zugeordnet sind.The invention relates to a lifting platform for motor vehicles with lifting columns, on which two rails parallel to each other for spacing the vehicle wheels are vertically movable, at least one rail is also adjustable transversely to its longitudinal extent to the lift adjust different track widths, and being the adjustable track at least two lifting columns are assigned.

Hebebühnen der vorbeschriebenen Art werden hauptsächlich als Vier-Säulen-Hebebühnen gebaut, wobei jede Fahrschiene nahe ihren Enden an einem Hubsäulen-Paar vertikal verfahrbar gelagert ist.Lifts of the type described above are mainly used as four-column lifts built, with each track near its ends on a pair of lifting columns is vertically movable.

Damit möglichst viele Fahrzeugtypen, beispielsweise von einem schmalen Gabelstapler bis zu einem breiten Wohnmobil oder Lkw auf die gleiche Hebebühne passen, sind Konstruktionen bekannt, bei denen die Fahrschienen quer zu ihrer Längserstreckung verstellt werden können entsprechend der gewünschten Fahrzeug-Spurbreite.So as many vehicle types as possible, for example from a narrow forklift fit on the same lift up to a wide motorhome or truck, Constructions are known in which the rails cross their The longitudinal extent can be adjusted according to the desired vehicle track width.

Bei der einen Konstruktion gemäß US-A-4 588 048, von der der Oberbegriff des Anspruches 1 ausgeht, sind die Fahrschienen nicht mehr direkt an den Hubsäulen angelenkt, sondern horizontal verschiebbar an Querträgern gelagert und diese Querträger sind dann ihrerseits am vorderen bzw. hinteren Hubsäulen-Paar vertikal verschiebbar geführt. Nun besteht aber in jüngerer Zeit bei Reparaturen verstärkt das Bedürfnis, größere Aggregate nach unten aus dem Fahrzeug ausbauen zu können. Dabei sind die genannten Querträger oft im Weg.In one construction according to US-A-4 588 048, from which the preamble of Claim 1 is based, the rails are no longer directly on the lifting columns articulated, but horizontally slidably mounted on cross members and this Cross members are then in turn vertical on the front or rear pair of lifting columns slidably guided. Now, however, there has been an increase in repairs recently the need to remove larger gensets down from the vehicle to be able to. The cross members mentioned are often in the way.

Außerdem ist eine Hebebühnen-Konstruktion bekannt, bei der auf die genannten Querträger verzichtet wird und die Fahrschienen stattdessen in Querrichtung verstellbar an Konsolen gelagert sind, die ihrerseits vertikal verfahrbar in den Hubsäulen angeordnet sind. Bei diesen Konsolen ist der Verstellbereich der Fahrschienen jedoch relativ gering. Außerdem bedarf die Verstellung eines hohen Kraftaufwandes. Nicht zuletzt besteht eine gewisse Problematik darin, dass jede Fahrschiene an der vorderen und an der hinteren Konsole die gleiche Verstellposition in Querrichtung einnehmen sollte, damit die Parallelität der beiden Fahrschienen in Bezug auf die Einfahrrichtung gewahrt bleibt.In addition, a lift construction is known, in which on the above Cross beam is dispensed with and the rails are adjustable in the transverse direction instead are mounted on brackets, which in turn can be moved vertically in the lifting columns are arranged. With these consoles, the adjustment range of the travel rails is however relatively small. In addition, the adjustment requires a high Expenditure of energy. Last but not least, there is a certain problem that everyone Travel rail on the front and on the rear console the same adjustment position should take in the transverse direction so that the parallelism of the two rails is maintained in relation to the direction of entry.

Hiervon ausgehend besteht die Aufgabe der vorliegenden Erfindung darin, eine Hebebühne mit den Merkmalen des Oberbegriffes von Anspruch 1 hinsichtlich der Verstellbarkeit der Fahrschienen oder zumindest einer Fahrschiene in Querrichtung zu verbessern, und zwar sowohl was den Verstellbereich angeht, als auch die Synchronisierung der Verstellbewegung relativ zu den beiden Hubsäulen. Außerdem soll sich die erfindungsgemäße Hebebühne durch robusten und kostengünstigen Aufbau auszeichnen.Proceeding from this, the object of the present invention is a Lift with the features of the preamble of claim 1 with respect to Adjustability of the rails or at least one rail in the transverse direction to improve, both in terms of the adjustment range, as well as the Synchronization of the adjustment movement relative to the two lifting columns. Moreover the lifting platform according to the invention should be robust and inexpensive Award structure.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die in Querrichtung verstellbare Fahrschiene über jeweils zumindest einen Schwenkhebel mit den ihr zugeordneten Hubsäulen verbunden ist, dass die Schwenkhebel an ihren Anlenkpunkten an Hubsäule und Fahrschiene um vertikale Achsen verschwenkbar und zur Bildung einer Parallel-Kinematik parallel zueinander angeordnet und gleich lang sind.This object is achieved in that the in the transverse direction adjustable travel rail each with at least one swivel lever with it associated lifting columns is connected that the pivot lever at their articulation points on the lifting column and travel rail can be pivoted about vertical axes and arranged parallel to each other to form a parallel kinematics and the same are long.

Die Erfindung beruht also auf dem Gedanken, die bisherige Schiebeführung der Fahrschiene durch eine Schwenklagerung zu ersetzen und die Schwenkhebel parallel zueinander auszurichten. Dadurch entsteht eine Parallelogramm-Führung, bei der die Fahrschienen unabhängig vom Verstellweg stets die gleiche parallele Orientierung zur ursprünglichen Position bzw. zur gegenüberliegenden Fahrschiene beibehalten. Gleichzeitig gestattet es diese Parallelführung, dass man nur einen einzigen Antrieb für die Verstellung einer Fahrschiene benötigt, weil ein Verkanten ausgeschlossen ist. Nicht zuletzt erlauben die Schwenkhebel auch größere Verstellwege als die bisherigen Konsolen, wobei als weiterer Vorteil hinzu kommt, dass die Verstellhebel nicht unter den Arbeitsraum unterhalb des Fahrzeuges hineinzuragen brauchen, wie es bei den Konsolen je nach Querverschiebung der Fahrschiene der Fall ist. Die erfindungsgemäße Hebebühne zeichnet sich daher auch durch eine wesentlich bessere Zugänglichkeit für die Monteure aus.The invention is therefore based on the idea that the previous sliding guide Replace rail with a swivel bearing and the swivel levers in parallel to align with each other. This creates a parallelogram guide, where the rails are always the same parallel regardless of the adjustment path Orientation to the original position or to the opposite rail maintained. At the same time, this parallel guidance allows you to have only one single drive for the adjustment of a travel rail is required because of tilting is excluded. Last but not least, the swivel levers also allow larger ones Adjustment paths than the previous consoles, with another advantage being that the adjustment levers do not protrude under the work area below the vehicle need, as is the case with the consoles depending on the lateral displacement of the Rail is the case. The lifting platform according to the invention is therefore distinguished also by a much better accessibility for the fitters.

Für die konstruktive Ausgestaltung der Schwenkhebel und des Antriebes zur Verstellung der Fahrschienen in Querrichtung bieten sich dem Fachmann zahlreiche Möglichkeiten. Zweckmäßig wird mit einem einteiligen Schwenkhebel gearbeitet und nur ein Antrieb pro Fahrschiene verwendet. Bei großen Verstellbreiten kann aber durchaus auch ein Scherenhebel eingesetzt werden.For the design of the swivel levers and the drive for adjustment the rails in the transverse direction are numerous for the specialist Possibilities. It is advisable to work with a one-piece swivel lever and only one drive is used per rail. With large adjustment widths but a scissor lever can also be used.

Als Antrieb kann ein manuell bedienbarer Spindelantrieb eingesetzt werden. Besonders bedienerfreundlich ist aber ein motorischer, insbesondere elektrischer oder hydraulischer Antrieb, der an eine Programmsteuerung angeschlossen ist. Die Bedienungsperson braucht dann lediglich den Fahrzeugtyp oder die gewünschte Spurbreite eintippen, worauf die Fahrschienen automatisch in die passende Breite fahren.A manually operated spindle drive can be used as the drive. Especially A motorized, especially an electric one is user-friendly or hydraulic drive connected to a program control. The operator then only needs the vehicle type or the desired one Type in the track width, whereupon the rails automatically fit into the right one Drive width.

Für die Positionierung des Antriebes für die Querverstellung bieten sich ebenfalls verschiedene Möglichkeiten. So kann der Antrieb direkt zwischen Hubsäule und Fahrschiene eingebaut sein oder aber zwischen dem Schwenkhebel einerseits und der Hubsäule oder der Fahrschiene andererseits.The positioning of the drive for the cross adjustment is also available various possibilities. So the drive can be directly between the lifting column and Rail may be installed or between the pivot lever on the one hand and the lifting column or the rail on the other.

Für die Anlenkung des Schwenkhebels an der Hubsäule und an der Fahrschiene werden zweckmäßigerweise Gleitlager-Buchsen verwendet, die bei geringem Kostenaufwand eine hohe Kraftübertragung gestatten.For the articulation of the swivel lever on the lifting column and on the travel rail slide bearing bushes are used expediently, at low cost allow high power transmission.

Die Schwenkhebel sind vorzugsweise auf dem gleichen Höhenniveau wie die Fahrschienen - also in etwa der gleichen Ebene angeordnet. Es liegt aber auch im Rahmen der Erfindung, die Schwenkhebel etwas vertikal versetzt zu den Fahrschienen anzuordnen. The swivel levers are preferably at the same height level as the travel rails - So arranged in about the same level. But it is also in the Within the scope of the invention, the swivel levers are offset somewhat vertically from the rails to arrange.

Untersuchungen der Anmelderin haben ergeben, dass es bei hohen Fahrzeuggewichten aufgrund des unvermeidlichen Lagerspieles an den Schwenkhebeln wie auch aufgrund elastischer Verformung je nach Dimensionierung der an der Kraftübertragung beteiligten Konstruktionselemente zu einem geringen seitlichen Abkippen der Fahrschienen um ihre Längsachse kommen kann. Zum Kompensieren dieses Abkippens kann zweckmäßig in der Verbindung zwischen Hubsäule und Fahrschiene eine arretierbare Kippvorrichtung mit horizontaler Kippachse eingebaut werden. Die Arretierung dieser Kippvorrichtung kann durch einen Keil, einen Exzenter oder dergleichen herbeigeführt werden.Investigations by the applicant have shown that there are high vehicle weights due to the inevitable bearing play on the swivel levers like also due to elastic deformation depending on the dimensioning of the power transmission involved construction elements to a small lateral tilt the rails can come around their longitudinal axis. To compensate this tipping can be useful in the connection between the lifting column and Rail a built-in tilting device with a horizontal tilt axis installed become. This tipping device can be locked by a wedge, a Eccentric or the like can be brought about.

Die Positionierung dieser Kippvorrichtung erfolgt zweckmäßig an der Fahrschiene. Alternativ kommt aber auch eine Position am Schwenkhebel oder an der Hubsäule in Betracht.This tilting device is expediently positioned on the running rail. Alternatively, there is also a position on the swivel lever or on the lifting column into consideration.

Schließlich hat es sich noch als zweckmäßig erwiesen, in jede Fahrschiene einen integrierten Radfreiheber oder Achsheber einzubauen.Finally, it has proven to be useful to have one in each rail built-in wheel-free jack or axle jack.

Wenn, wie es vorzugsweise der Fall ist, beide Fahrschienen an Schwenkhebeln gelagert sind, besteht ein wesentlicher Aspekt der Erfindung darin, dass die vorderen Ende der Fahrschienen (ohne die schrägen Auffahrrampen) - in Einfahrtrichtung gesehen - erst hinter den zugeordneten vorderen Hubsäulen beginnen. Dadurch wird die Zugänglichkeit des Fahrzeuges weiter verbessert, insbesondere hinsichtlich der Hinterräder bei langen Fahrzeugen, wo bei herkömmlichen Hebebühnen oft die Hubsäulen im Weg sind.If, as is preferably the case, both rails on swivel levers are stored, an essential aspect of the invention is that the front End of the rails (without the sloping ramps) - in the direction of entry seen - only start behind the assigned front lifting columns. Thereby the accessibility of the vehicle is further improved, in particular with regard to the rear wheels on long vehicles, where on conventional lifts often the lifting columns are in the way.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnung; dabei zeigt

Figur 1
eine Ansicht der Hebebühne von oben bei auseinandergefahrenen Fahrschienen;
Figur 2
die gleiche Ansicht bei zusammengefahrenen Fahrschienen;
Figur 3
eine Seitenansicht der Hebebühne in heruntergefahrenem Zustand;
Figur 4
eine perspektivische Ausschnittvergrößerung im Bereich des Schwenkhebels;
Figur 5
eine perspektivische Ausschnittvergrößerung der Verstellspindel;
Figur 6
eine vergrößerte Darstellung der Schwenkhebel-Lagerung mit Exzenter.
Further features and advantages of the invention will become apparent from the following description of an embodiment with reference to the drawing; shows
Figure 1
a view of the lift from above with the rails apart;
Figure 2
the same view when the rails are closed;
Figure 3
a side view of the lift in the lowered state;
Figure 4
a perspective cut-out enlargement in the region of the pivot lever;
Figure 5
a perspective enlargement of the adjusting spindle;
Figure 6
an enlarged view of the pivot lever bearing with eccentric.

In den Figuren 1 bis 3 erkennt man vier Hubsäulen 1 bis 4, die in üblicher Weise im Werkstattboden verankert sind. An jeder dieser Hubsäulen ist ein Lagerbock 1a bis 4a vertikal verfahrbar gelagert, und zwar in an sich bekannter Weise beispielsweise über eine verdrehbare Spindel oder einen Hydraulikantrieb. Jeder dieser Lagerböcke trägt einen horizontal schwenkbar gelagerten Schwenkhebel 5 bis 8, wobei die Schwenkhebel 5 und 6 an der einen Seite der Hebebühne parallel zueinander ausgerichtet sind und die Schwenkhebel 7 und 8 an der gegenüberliegenden Seite der Hebebühne ebenfalls parallel zueinander ausgerichtet sind. Alle vier Schwenkhebel sind gleich lang und erstrecken sich mehr oder weniger in den Raum innerhalb der vier Hubsäulen.In Figures 1 to 3 you can see four lifting columns 1 to 4, which in the usual way are anchored in the workshop floor. There is a bearing block 1a on each of these lifting columns to 4a vertically movable, for example in a conventional manner via a rotatable spindle or a hydraulic drive. Each of these Bearing bracket carries a horizontally pivoted pivot lever 5 to 8, the pivot levers 5 and 6 on one side of the lift parallel to each other are aligned and the pivot lever 7 and 8 on the opposite Side of the lift are also aligned parallel to each other. All four Swing levers are the same length and extend more or less in the Space within the four lifting columns.

An den freien Enden der Schwenkhebel 5 und 6 ist die eine Fahrschiene 9 angelenkt, an den Enden der Schwenkhebel 7 und 8 die andere Fahrschiene 10. Beide Fahrschienen haben im Wesentlichen den bekannten Aufbau.At the free ends of the swivel levers 5 and 6, the one guide rail 9 is articulated, at the ends of the swivel levers 7 and 8 the other rail 10. Both Rails essentially have the known structure.

Wesentlich ist nun, dass durch ihre Anlenkung über die Schwenkhebel 5 bis 8 eine Parallelogrammführung entsteht, die große Verstellwege bei absoluter Parallelität während der Verstellbewegung gewährleistet.It is essential that a through their articulation via the pivot levers 5 to 8 Parallelogram guidance is created, the large adjustment paths with absolute parallelism guaranteed during the adjustment movement.

Figur 4 verdeutlicht den Aufbau der Schwenkhebel am Beispiel der Hubsäule 2 und des Hebels 6. Man erkennt, dass der Schwenkhebel im Wesentlichen aus einem rechteckigen Hohlprofil 6 a besteht. An dieses Hohlprofil sind entweder endständige Lagerlaschen, wie an der Unterseite gezeigt, angeschweißt oder, wie an der Oberseite gezeigt, eine durchgehende Verstärkungsplatte, die an ihren überstehenden Enden die Lagerbohrungen aufweist. Die Schwenklagerung sowohl an der Hubsäule wie auch an der Fahrschiene erfolgt durch Gleitlager, insbesondere über massive Bolzen. Figure 4 illustrates the structure of the pivot lever using the example of the lifting column 2 and of the lever 6. It can be seen that the pivot lever essentially consists of one rectangular hollow profile 6 a. This hollow profile is either terminal Bearing brackets, as shown on the underside, welded or, as on the Shown on top, a continuous reinforcement plate that protrudes from its Ends of the bearing bores. The swivel bearing on both Lifting column as well as on the running rail is carried out by plain bearings, especially via massive bolts.

Außerdem erkennt man in Figur 4 den Antrieb für die horizontale Verstellbewegung, im Ausführungsbeispiel in Form einer Gewindespindel 11. Diese Gewindespindel ist schwenkbar einerseits an der Fahrschiene 9, andererseits am Schwenkhebel 6 gelagert. Sie kann ein den Schwenkarm 6 durchquerendes, überstehendes Ende aufweisen, um die Verdrehung der Spindel manuell, etwa über einen Sechskant herbeizuführen. Stattdessen kann die Spindel aber auch motorisch betrieben werden, wobei es sich empfiehlt, den Stellmotor im Inneren des hohlen Schwenkarmes 6 anzuordnen.In addition, the drive for the horizontal adjustment movement can be seen in FIG. 4, in the exemplary embodiment in the form of a threaded spindle 11. This threaded spindle is pivotable on the one hand on the running rail 9, on the other hand on the pivot lever 6 stored. It can have a protruding end crossing the swivel arm 6 have to twist the spindle manually, for example via a hexagon bring about. Instead, the spindle can also be operated by a motor, where it is recommended to position the servomotor inside the hollow swivel arm 6 to arrange.

Eine Skala 12 für den Schwenkwinkel ist zweckmäßig so skaliert, dass man die zum jeweiligen Schwenkwinkel gehörende Spurbreite ablesen kann.A scale 12 for the swivel angle is appropriately scaled so that the track width belonging to the respective swivel angle.

Besonders zweckmäßig ist es indessen, den Stellmotor an eine Programmsteuerung anzuschließen. Der Benutzer braucht dann lediglich den Fahrzeugtyp oder die gewünschte Spurweite vorzugeben, worauf die Fahrschienen 9 und 10 automatisch auf das gewünschte Maß eingestellt werden. Außerdem ist dadurch sichergestellt, dass beide Fahrschienen gleich weit, also symmetrisch nach außen oder innen fahren.However, it is particularly expedient to connect the servomotor to a program control to join. The user then only needs the vehicle type or the to specify the desired track width, whereupon the rails 9 and 10 automatically can be adjusted to the desired size. It also ensures that both rails are equally far, i.e. symmetrically outwards or inwards drive.

Figur 5 zeigt den Antrieb 11 in Form einer manuell zu bedienenden Gewindespindel. Dazu ist die Gewindespindel mit zwei Flanschen 11b und 11c bestückt, wobei sie im Flansch 11b durch ihre Gewindegänge verdrehbar gelagert ist, während sie im Flansch 11c verdrehbar, aber axial unverschiebbar gelagert ist. Auf diese Weise führt eine Verdrehung der Gewindespindel 11 zu einer Relativbewegung zwischen den beiden Flanschen 11b und 11c. Zur leichten Bedienbarkeit der Gewindespindel weist sie an ihrem überstehenden Ende einen Sechskant 11a auf.Figure 5 shows the drive 11 in the form of a manually operated threaded spindle. For this purpose, the threaded spindle is equipped with two flanges 11b and 11c, whereby it is rotatably supported in the flange 11b by its threads while it is rotatable in the flange 11c, but is axially immovable. In this way a rotation of the threaded spindle 11 leads to a relative movement between the two flanges 11b and 11c. For easy operation of the threaded spindle it has a hexagon 11a at its projecting end.

Die Montage der Gewindespindel erfolgt in der Weise, dass der Flansch 11b am Schwenkhebel, der Flansch 11c an der Fahrschiene montiert wird.The threaded spindle is mounted in such a way that the flange 11b on Swivel lever, the flange 11c is mounted on the running rail.

Figur 6 zeigt eine besondere Ausgestaltung des Schwenklagers zwischen Schwenkarm und Tragschiene am Beispiel des Schwenkarmes 6. Man erkennt die beiden nach rechts weggehenden horizontalen Profilteile des Schwenkarmes 6 und zwischen ihnen einen Klotz 9a, der mit der Tragschiene 9 verschweißt ist. Beide Teile werden von einem vertikalen Lagerbolzen 13 durchquert, können sich also in einer Horizontalebene relativ zueinander verdrehen. Wesentlich ist nun, dass im oberen Profilteil des Schwenkarmes 6 eine Lageröffnung 14 angeordnet ist, die erheblich größer ist als der Durchmesser des Bolzens 13. In den dadurch entstehenden Ringspalt ist eine Exzenterhülse 15 eingesteckt. Sie ist auf dem Zapfen 13 verdrehbar gelagert und greift mit ihrem Exzenter 15a in die Bohrung 14 ein.Figure 6 shows a special embodiment of the pivot bearing between the pivot arm and mounting rail using the example of the swivel arm 6. You can recognize the two horizontal profile parts of the swivel arm 6 and between them a block 9a, which is welded to the mounting rail 9. Both parts will traversed by a vertical bearing pin 13, so can in a horizontal plane twist relative to each other. It is now essential that in the upper profile part of the swivel arm 6, a bearing opening 14 is arranged which is considerably larger than the diameter of the bolt 13. In the resulting annular gap is one Eccentric sleeve 15 inserted. It is rotatably mounted on the pin 13 and engages with its eccentric 15a in the bore 14.

Aufgrund der Gewichtsbelastung wird der Exzenter 15a an der links des Bolzens 13 liegenden Seite vom Schwenkarm 6 belastet, wogegen an der gegenüberliegenden Seite ein kleiner Ringspalt frei bleiben kann - je nach Drehstellung des Exzenters.Due to the weight load, the eccentric 15a is on the left of the bolt 13 lying side loaded by the swivel arm 6, whereas on the opposite A small annular gap can remain free - depending on the rotary position of the Eccentric.

Auf diese Weise ist es möglich, den Lagerzapfen 13 wenige Millimeter aus der Vertikalrichtung herauszuschwenken und dadurch die daran angelenkte Fahrschiene 9 entsprechend um ihre Längsachse zu kippen. Dadurch kann ein eventuelles Gefälle der Fahrschienen quer zu ihrer Längserstreckung, wie es bei stark nach innen geschwenkten Schwenkhebeln und hoher Fahrzeugbelastung auftreten kann, zuverlässig kompensiert werden.In this way, it is possible to remove the journal 13 a few millimeters from the Swing out the vertical direction and thereby the articulated rail 9 tilt accordingly about its longitudinal axis. This can cause a possible Slope of the rails transverse to their longitudinal extent, as is the case with strong inside pivoted swivel levers and high vehicle load can occur be reliably compensated.

Zusammenfassend zeichnet sich somit die erfindungsgemäße Hebebühne durch außerordentlich günstige Verstellbarkeit der Fahrschienen in Querrichtung mit absoluter Parallelität aus. Man kann außerdem mit sehr schmalen Fahrschienen arbeiten, was die Zugänglichkeit des Fahrzeuges verbessert. Nicht zuletzt kann die Position der Hubsäulen in Abhängig von den räumlichen Gegebenheiten in der Werkstatt optimiert werden.In summary, the lifting platform according to the invention is characterized by extraordinarily favorable adjustability of the rails in the transverse direction with absolute Parallelism. You can also work with very narrow rails, which improves the accessibility of the vehicle. Last but not least, the Position of the lifting columns depending on the spatial conditions in the Workshop can be optimized.

Claims (14)

  1. Lifting platform for motor vehicles, having lifting columns (1 to 4) on which there are mounted two runways (9, 10) for receiving the wheels of the vehicle, which runways are arranged one next to the other, in parallel and spaced apart from one another, the runways being, mounted so as to be vertically displaceable, at least one runway (9, 10) also being adjustable transversely to its longitudinal extent in order that the lifting platform can be adapted to different track widths, and the said adjustable runway being associated with at least two lifting columns (1, 2; 3, 4),
    characterised in that
    the runway (9,10) that is adjustable in the transverse direction is connected to each of the lifting columns (1, 2 and 3, 4) with which it is associated by means of at least one pivot lever (5, 6 and 7,8); those pivot levers (5 to 8) pivot about vertical axes at their articulation points on lifting column and runway and, for the establishment of parallel kinematics, are arranged parallel to one another and are of equal length.
  2. Lifting platform according to claim 1,
    characterised in that
    the adjustable runway (9, 10) is displaceable, manually or by motor, by means of a horizontally acting drive mechanism (11).
  3. Lifting platform according to claim 2,
    characterised in that
    only one drive mechanism (11) is provided per runway (9, 10).
  4. Lifting platform according to claim 2 or 3,
    characterised in that
    the drive mechanism (11) acts on the pivot lever, and is especially installed between runway (9, 10) and pivot lever (5 to 8).
  5. Lifting platform according to claim 2,
    characterised in that
    the drive mechanism (11) is in the form of a spindle drive mechanism.
  6. Lifting platform according to claim 2,
    characterised in that
    the drive mechanism is installed in the pivot lever, which is in the form of a hollow profile.
  7. Lifting platform according to claim 2,
    characterised in that
    the drive mechanism (11) is motor-driven by way of a program control.
  8. Lifting platform according to claim 2,
    characterised in that
    the drive mechanism is provided with a position sensor for the symmetrical displacement of the two runways (9, 10).
  9. Lifting platform according to claim 1,
    characterised in that
    the articulation of the pivot levers (5 to 8) on the lifting column and on the runway is effected by means of plain bearing bushes.
  10. Lifting platform according to claim 1,
    characterised in that
    an arrestable tilting device for tilting the runway about its longitudinal axis is installed in the connection between lifting column (1 to 4) and runway (9, 10).
  11. Lifting platform according to claim 10,
    characterised in that
    the tilting device is formed by an eccentric (15).
  12. Lifting platform according to claim 11,
    characterised in that
    the eccentric (15) is combined with the pivot bearing between pivot lever and runway.
  13. Lifting platform according to claim 1,
    characterised in that each runway (9, 10) has an integrated wheel free lift or jack.
  14. Lifting platform according to claim 1,
    characterised in that
    both runways (9, 10) are mounted on pivot levers (5, 6 and 7, 8); and - seen in the drive-in direction - they begin after the forward lifting columns (1, 3).
EP02020868A 2001-09-26 2002-09-18 Lifting platform for vehicles Expired - Fee Related EP1298086B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10147398A DE10147398A1 (en) 2001-09-26 2001-09-26 Lift for motor vehicles
DE10147398 2001-09-26

Publications (2)

Publication Number Publication Date
EP1298086A1 EP1298086A1 (en) 2003-04-02
EP1298086B1 true EP1298086B1 (en) 2004-12-01

Family

ID=7700308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020868A Expired - Fee Related EP1298086B1 (en) 2001-09-26 2002-09-18 Lifting platform for vehicles

Country Status (2)

Country Link
EP (1) EP1298086B1 (en)
DE (2) DE10147398A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113253B4 (en) 2014-08-14 2024-07-18 Gerhard Finkbeiner Lifting device and lifting platform formed from it

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109502510B (en) * 2018-09-03 2021-12-07 蔚来(安徽)控股有限公司 Lifting mechanism, lifting device, lifting unit and battery replacing platform
DE102019114652B4 (en) * 2019-05-13 2022-12-01 Michael Alber parking device
CN110255372B (en) * 2019-06-02 2024-03-22 江苏三工建材科技有限公司 Bridge device for plug borer equipment
CA3229468A1 (en) * 2022-06-16 2023-12-21 Yves BROUILLETTE Four post workpiece lift for sportsvehicles and small machines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2108882A1 (en) * 1970-10-15 1972-05-26 Fogautolube Sa Further training in column lifts for the maintenance of motor vehicles
US4588048A (en) * 1984-03-19 1986-05-13 Economove Corporation Four post lift and track adjusting means therefor
DE8408767U1 (en) * 1984-03-22 1984-06-14 Zippo Gesellschaft für Hebetechnik mbH, 7600 Offenburg LIFTING AND PARKING DEVICE FOR AIRCRAFT
DE4442069A1 (en) * 1994-11-25 1996-05-30 Mepa Saechsische Parksys Gmbh Automatically controlled car park

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113253B4 (en) 2014-08-14 2024-07-18 Gerhard Finkbeiner Lifting device and lifting platform formed from it

Also Published As

Publication number Publication date
DE50201662D1 (en) 2005-01-05
DE10147398A1 (en) 2003-04-10
EP1298086A1 (en) 2003-04-02

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