EP0474998A1 - Vehicle lift - Google Patents

Vehicle lift Download PDF

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Publication number
EP0474998A1
EP0474998A1 EP91110827A EP91110827A EP0474998A1 EP 0474998 A1 EP0474998 A1 EP 0474998A1 EP 91110827 A EP91110827 A EP 91110827A EP 91110827 A EP91110827 A EP 91110827A EP 0474998 A1 EP0474998 A1 EP 0474998A1
Authority
EP
European Patent Office
Prior art keywords
drive
columns
lifting
lifting elements
traction means
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.)
Withdrawn
Application number
EP91110827A
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German (de)
French (fr)
Inventor
Hans Dipl.-Ing. Nussbaum
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.)
Otto Nussbaum GmbH and Co KG
Original Assignee
Otto Nussbaum GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Otto Nussbaum GmbH and Co KG filed Critical Otto Nussbaum GmbH and Co KG
Publication of EP0474998A1 publication Critical patent/EP0474998A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B66F7/26—Lifting frames, e.g. for lifting vehicles; Platform lifts for selective lifting of parts of vehicles
    • 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

Definitions

  • the invention is based on a lifting platform for motor vehicles, in particular passenger cars, with at least two vertically movable columns, which have at least one support surface at the top for receiving the vehicle wheels, additional lifting elements for lifting the vehicle free of wheels being arranged, in particular in the columns.
  • the lifting elements mentioned at the outset are driven by a hydraulic cylinder, which is arranged in the column, for wheel-free lifting. So that the lifting elements are moved synchronously, it is necessary to provide a connection between them. Rack synchronization is usually used for this.
  • the object of the present invention is to improve a lifting platform of the type described at the outset in such a way that it can be manufactured more cheaply while fulfilling all requirements in terms of quality.
  • the lifting elements have a common drive which is connected to the two lifting elements via traction means.
  • the drive is connected to the two lifting elements via traction means, in particular via chains or ropes, which run to the lifting elements via deflection wheels.
  • the hall floor 1 Underneath the hall floor 1 there is a pit, on the foundation of which the supporting frame 2 of the lifting platform rests. On it two columns 3 and 4 are guided vertically. They are driven in a manner known per se, that is to say in particular hydraulically or instead also by means of spindles, which is why this is not dealt with in more detail.
  • the columns 3 and 4 each carry a travel rail 5 or 6.
  • these travel rails can align with the hall floor 1 or, if guide bushes for the columns are arranged in this area, as indicated in the drawing, they carry a small ramp at the end where the vehicle enters.
  • transverse yoke 7 ensures that the columns are raised or lowered absolutely synchronously.
  • a lifting plunger 8 and 9 each vertically displaceable, so that a vehicle standing on the rails 5 and 6 can be lifted wheel-free.
  • the lifting cylinders 8 and 9 are each connected near their lower end to a traction means 10a, 10b which initially runs upwards, deflected downwards by 180 each via a deflection roller 11, via further deflection rollers 12a and 12b are deflected into the horizontal and finally fixed to a horizontally acting drive 13.
  • the upper pulleys 11 are attached directly or indirectly to the columns 3 and 4, so that they participate in their lifting movement.
  • they are mounted on a lifting cylinder 14, which is moved hydraulically relative to the frame 2 or its stationary, upwardly running piston rods 2a and 2b.
  • the lower deflection wheels 12a and 12b are mounted on the transverse yoke 7.
  • the drive 13 in the exemplary embodiment is designed as a single-acting cylinder-piston unit, one traction means 10b runs over a further deflection roller 15, so that it is deflected horizontally by 180 and is fed in the same direction as the traction means 10a to the actuating piston 13a of the drive 13 becomes.
  • a movement of the piston 13a in the same direction produces two movements of the traction means 10a and 10b in opposite directions with respect to the horizontal and from this follow immediately sensible lifting movements of the stamps 8 and 9 based on the vertical.

Abstract

The invention relates to a vehicle lift with two vertically displaceable columns (3, 4) in which additional lifting elements (8, 9) are arranged. These lifting elements (8, 9) are connected via tensile means (10a, 10b) and deflection rollers (11, 12a, 12b, 15) to a common drive (13, 13a) in such a way that both lifting elements (8, 9) can be displaced synchronously using a single drive.

Description

Die Erfindung geht aus von einer Hebebühne für Kraftfahrzeuge, insbesondere Personenwagen mit mindestens zwei vertikal verfahrbaren Säulen, die oben zumindest eine Stützfläche zur Aufnahme der Fahrzeugräder aufweisen, wobei zusätzliche Hubelemente zum Radfreiheben des Fahrzeuges an, insbesondere in den Säulen angeordnet sind.The invention is based on a lifting platform for motor vehicles, in particular passenger cars, with at least two vertically movable columns, which have at least one support surface at the top for receiving the vehicle wheels, additional lifting elements for lifting the vehicle free of wheels being arranged, in particular in the columns.

Diese Hebebühnen haben den Vorteil, daß das Fahrzeug mit seinen Rädern aus der Stützfläche, die im allgemeinen als Laufschienen ausgebildet sind, herausgehoben werden kann, so daß beispielsweise Bremsenreparaturen oder eine Achsvermessung in angenehmer Arbeitshöhe durchgeführt werden kann.These lifts have the advantage that the vehicle with its wheels can be lifted out of the support surface, which are generally designed as running rails, so that, for example, brake repairs or wheel alignment can be carried out at a comfortable working height.

Bei derartigen bekannten Hebebühnen werden die eingangs genannten Hubelemente zum Radfreiheben durch jeweils einen Hydraulikzylinder angetrieben, der in der Säule angeordnet ist. Damit die Hubelemente synchron verfahren werden, ist es notwendig, eine Verbindung zwischen Ihnen vorzusehen. Meist verwendet man hierfür eine Zahnstangen-Synchronisierung.In such known lifting platforms, the lifting elements mentioned at the outset are driven by a hydraulic cylinder, which is arranged in the column, for wheel-free lifting. So that the lifting elements are moved synchronously, it is necessary to provide a connection between them. Rack synchronization is usually used for this.

Hiervon ausgehend liegt die Aufgabe der vorliegenden Erfindung darin, eine Hebebühne der eingangs beschriebenen Art dahingehend zu verbessern, daß sie bei qualitativ gleicher Erfüllung aller Anforderungen konstengünstiger herstellbar wird.Proceeding from this, the object of the present invention is to improve a lifting platform of the type described at the outset in such a way that it can be manufactured more cheaply while fulfilling all requirements in terms of quality.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Hubelemente einen gemeinsamen Antrieb aufweisen, der über Zugmittel mit den beiden Hubelementen verbunden ist.This object is achieved in that the lifting elements have a common drive which is connected to the two lifting elements via traction means.

Auf diese Weise benötigt man für den Antrieb der beiden Hubelemente nur einen Antrieb und die bisher notwendige Zahnstangen-Synchronisierung entfällt.In this way, only one drive is required to drive the two lifting elements and the rack and pin synchronization that was previously required is eliminated.

Für die Positionierung des Antriebes hat es sich als besonders zweckmäßig erwiesen, wenn er etwa in Horizontalrichtung wirkt und an bzw. in einem Querjoch montiert ist, das die beiden Säulen nahe ihrem unteren Ende verbindet. Dieses Querjoch ist ohnehin zur Synchronisation der Säulen notwendig und bietet wesentlich mehr Platz als der Säuleninnenraum, in dem bisher die beiden Hydraulikzylinder eingebaut worden sind. Die Verbindung des Antriebes mit den beiden Hubelementen erfolgt über Zugmittel, insbesondere über Ketten oder Seile, die über Umlenkräder zu den Hubelementen laufen.For the positioning of the drive, it has proven to be particularly expedient if it acts approximately in the horizontal direction and is mounted on or in a transverse yoke which connects the two columns near their lower end. This transverse yoke is necessary anyway for the synchronization of the columns and offers much more space than the column interior, in which the two hydraulic cylinders have been installed so far. The drive is connected to the two lifting elements via traction means, in particular via chains or ropes, which run to the lifting elements via deflection wheels.

Grundsätzlich kommen für die Wahl des Antriebes verschiedene Möglichkeiten in Betracht, etwa zweiseitig wirkende Spindel- oder Kolbenantriebe. Ebenso kann aber auch ein nur einseitig wirkender Antrieb verwendet werden, wobei die erforderliche Gegenläufigkeit der beiden Zugmittel dadurch herbeigeführt wird, daß das eine Zugmittel eine zusätzliche 180 ° -Umlenkung erfährt. Als Antrieb kann dann ein einfaches hydraulisches Zylinder-Kolben-Aggregat verwendet werden.In principle, various options are available for the selection of the drive, such as double-acting spindle or piston drives. However, it is also possible to use a drive which only acts on one side, the required counter-rotation of the two traction means being brought about by the fact that the one traction means undergoes an additional 180 ° deflection. A simple hydraulic cylinder-piston unit can then be used as the drive.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnung; sie zeigt eine schematische Darstellung der Hebebühne im Vertikalschnitt.Further features and advantages of the invention will become apparent from the following description of an embodiment with reference to the drawing; it shows a schematic representation of the lift in vertical section.

Unterhalb des Hallenbodens 1 befindet sich eine Grube, auf deren Fundament das Traggestell 2 der Hebebühne ruht. An ihm sind zwei Säulen 3 und 4 vertikal verschiebbar geführt. Ihr Antrieb erfolgt in an sich bekannter Weise, also insbesondere hydraulisch oder stattdessen auch durch Spindeln, weshalb hierauf nicht näher eingegangen wird.Underneath the hall floor 1 there is a pit, on the foundation of which the supporting frame 2 of the lifting platform rests. On it two columns 3 and 4 are guided vertically. They are driven in a manner known per se, that is to say in particular hydraulically or instead also by means of spindles, which is why this is not dealt with in more detail.

An ihrem oberen Ende tragen die Säulen 3 und 4 jeweils eine Fahrschiene 5 bzw. 6. Bei heruntergefahrener Hebebühne können diese Fahrschienen mit dem Hallenboden 1 fluchten oder, wenn in diesem Bereich wie in der Zeichnung angedeutet Führungsbüchsen für die Säulen angeordnet sind, so tragen sie an dem Ende, wo die Einfahrt des Fahrzeuges erfolgt, eine kleine Rampe.At their upper end, the columns 3 and 4 each carry a travel rail 5 or 6. When the lift is lowered, these travel rails can align with the hall floor 1 or, if guide bushes for the columns are arranged in this area, as indicated in the drawing, they carry a small ramp at the end where the vehicle enters.

Am untere Ende sind die beiden Säulen 3 und 4 durch ein Querjoch 7 miteinander verbunden. Dieses Querjoch stellt sicher, daß die Säulen absolut synchron hochgefahren bzw. abgesenkt werden.At the lower end, the two columns 3 and 4 are connected to one another by a transverse yoke 7. This transverse yoke ensures that the columns are raised or lowered absolutely synchronously.

Im Inneren der beiden Säulen 3 und 4 ist außerdem jeweils ein Hubstempel 8 bzw. 9 vertikal verschiebbar angeordnet, damit ein auf den Fahrschienen 5 und 6 stehendes Fahrzeug radfrei gehoben werden kann.In the interior of the two columns 3 and 4 there is also a lifting plunger 8 and 9 each vertically displaceable, so that a vehicle standing on the rails 5 and 6 can be lifted wheel-free.

Wesentlich ist nun der Antrieb dieser beiden Hubzylinder 8 und 9: Wie man sieht, sind die Hubzylinder nahe ihrem unteren Ende jeweils an ein Zugmittel 10a, 10b angeschlossen, das zunächst nach oben läuft, über jeweils eine Umlenkrolle 11 um 180 nach unten umgelenkt, über weitere Umlenkrollen 12a bzw. 12b in die Horizontale umgelenkt und schließlich an einem horizontal wirkenden Antrieb 13 festgelegt wird. Dabei sind die oberen Umlenkrollen 11 direkt oder mittelbar an den Säulen 3 und 4 befestigt, so daß sie deren Hubbewegung mitmachen. Im Ausführungsbeispiel sind sie an einem Hubzylinder 14 gelagert, der hydraulisch gegenüber dem Gestell 2 bzw. dessen ortsfesten, nach oben laufenden Kolbenstangen 2a und 2b verfahren wird.The drive of these two lifting cylinders 8 and 9 is now essential: as can be seen, the lifting cylinders are each connected near their lower end to a traction means 10a, 10b which initially runs upwards, deflected downwards by 180 each via a deflection roller 11, via further deflection rollers 12a and 12b are deflected into the horizontal and finally fixed to a horizontally acting drive 13. The upper pulleys 11 are attached directly or indirectly to the columns 3 and 4, so that they participate in their lifting movement. In the exemplary embodiment, they are mounted on a lifting cylinder 14, which is moved hydraulically relative to the frame 2 or its stationary, upwardly running piston rods 2a and 2b.

Die unteren Umlenkräder 12a und 12b sind ebenso wie der Antrieb 13 am Querjoch 7 montiert.The lower deflection wheels 12a and 12b, like the drive 13, are mounted on the transverse yoke 7.

Da der Antrieb 13 im Ausführungsbeispiel als einseitig wirkendes Zylinder-Kolben-Aggregat ausgebildet ist, läuft das eine Zugmittel 10b über eine weitere Umlenkrolle 15, so daß es horizontal um 180 umgelenkt und in gleicher Richtung wie das Zugmittel 10a dem Stellkolben 13a des Antriebes 13 zugeführt wird. Dadurch erzeugt eine gleichsinnige Bewegung des Kolbens 13a zwei gegensinnige Bewegungen der Zugmittel 10a und 10b bezogen auf die Horizontale und hieraus folgen gleichsinnige Hubbewegungen der Stempel 8 und 9 bezogen auf die Vertikale. Man kommt also für beide Hubstempel 8 und 9 mit einem einzigen Antrieb aus, benötigt keine zusätzlichen Hilfsmittel für die Synchronisierung der beiden Hubstempel und nützt den am bzw. im Querjoch 7 zur Verfügung stehenden Raum optimal aus. Insbesondere nimmt die erfindungsgemäße Positionierung des Antriebes 13 im Bereich des Querjoches 7 keinen Platz im Bereich der Auffahrschienen 5 und 6 weg, so daß die dort durchzuführenden Arbeiten am Fahrzeug in keiner Weise behindert werden.Since the drive 13 in the exemplary embodiment is designed as a single-acting cylinder-piston unit, one traction means 10b runs over a further deflection roller 15, so that it is deflected horizontally by 180 and is fed in the same direction as the traction means 10a to the actuating piston 13a of the drive 13 becomes. As a result, a movement of the piston 13a in the same direction produces two movements of the traction means 10a and 10b in opposite directions with respect to the horizontal and from this follow immediately sensible lifting movements of the stamps 8 and 9 based on the vertical. So you get by for both jacks 8 and 9 with a single drive, no additional aids for the synchronization of the two jacks and make optimal use of the space available on or in the transverse yoke 7. In particular, the positioning of the drive 13 according to the invention in the area of the transverse yoke 7 does not take up any space in the area of the ramps 5 and 6, so that the work to be carried out there on the vehicle is in no way impeded.

Claims (7)

1. Hebebühne für Kraftfahrzeuge, insbesondere Personenwagen mit mindestens zwei vertikal verfahrbaren Säulen (3, 4), die oben zumindest eine Stützfläche (5, 6) zur Aufnahme der Fahrzeugräder aufweisen, wobei zusätzliche Hubelemente (8, 9) an, insbesondere in den Säulen (3, 4) angeordnet sind,
dadurch gekennzeichnet,
daß die Hubelemente (8, 9) einen gemeinsamen Antrieb (13) aufweisen, der über Zugmittel (10a, 10b) mit den beiden Hubelementen (8, 9) verbunden ist.1. Lift for motor vehicles, in particular passenger cars with at least two vertically movable columns (3, 4), which have at least one support surface (5, 6) on top for receiving the vehicle wheels, additional lifting elements (8, 9) on, in particular in the columns (3, 4) are arranged,
characterized,
that the lifting elements (8, 9) have a common drive (13) which is connected to the two lifting elements (8, 9) via traction means (10a, 10b). 2. Hebebühne nach Anspruch 1,
dadurch gekennzeichnet,
daß der Antrieb (13) etwa in Horizontalrichtung wirkt und die Zugmittel (10a, 10b) über Umlenkräder (11, 12a, 12b) mit den Hubelementen (8, 9) verbunden ist.2. Lift according to claim 1,
characterized,
that the drive (13) acts approximately in the horizontal direction and the traction means (10a, 10b) is connected to the lifting elements (8, 9) via deflection wheels (11, 12a, 12b). 3. Hebebühne nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Antrieb (13) nur einseitig wirkt und das mit dem einen Hubelement (9) verbundene Zugmittel (10b) eine zusätzliche 180 ° -Umlenkung über eine Umlenkrolle (15) durchführt.3. lift according to claim 1 or 2,
characterized,
that the drive (13) acts only on one side and the traction means (10b) connected to the one lifting element (9) carries out an additional 180 ° deflection via a deflection roller (15). 4. Hebebühne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Antrieb (13) an einem Querjoch (7) montiert ist, das die beiden Säulen (3, 4) verbindet.4. Lifting platform according to one of the preceding claims,
characterized,
that the drive (13) is mounted on a transverse yoke (7) which connects the two columns (3, 4). 5. Hebebühne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß der Antrieb (13) ein hydraulisches Zylinder-Kolben-Aggregat ist.5. Lift according to one of the preceding claims,
characterized,
that the drive (13) is a hydraulic cylinder-piston unit. 6. Hebebühne nach Anspruch 4,
dadurch gekennzeichnet,
daß die Zugmittel (10a, 10b) innerhalb der Säulen (3, 4) gekapselt verlaufen.6. Lift according to claim 4,
characterized,
that the traction means (10a, 10b) run encapsulated within the columns (3, 4). 7. Hebebühne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Hubelemente (8, 9) in den Säulen (3, 4) verfahrbar angeordnet sind und daß die Zugmittel (10a, 10b) teilweise im Inneren der Hubelemente (8, 9) verlaufen.7. Lifting platform according to one of the preceding claims,
characterized,
that the lifting elements (8, 9) are movably arranged in the columns (3, 4) and that the traction means (10a, 10b) partially run inside the lifting elements (8, 9).
EP91110827A 1990-09-07 1991-06-29 Vehicle lift Withdrawn EP0474998A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4028484 1990-09-07
DE4028484A DE4028484A1 (en) 1990-09-07 1990-09-07 LIFT FOR MOTOR VEHICLES

Publications (1)

Publication Number Publication Date
EP0474998A1 true EP0474998A1 (en) 1992-03-18

Family

ID=6413849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110827A Withdrawn EP0474998A1 (en) 1990-09-07 1991-06-29 Vehicle lift

Country Status (4)

Country Link
US (1) US5176225A (en)
EP (1) EP0474998A1 (en)
JP (1) JPH04251098A (en)
DE (1) DE4028484A1 (en)

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CN110790181A (en) * 2019-11-05 2020-02-14 金陵科技学院 Intelligent transportation and jacking equipment for building material transportation and transportation jacking method

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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
JPH04251098A (en) 1992-09-07
DE4028484A1 (en) 1992-03-12
US5176225A (en) 1993-01-05
DE4028484C2 (en) 1993-05-13

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