EP0418679B1 - Lifting platform for motor vehicles - Google Patents

Lifting platform for motor vehicles Download PDF

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Publication number
EP0418679B1
EP0418679B1 EP90117326A EP90117326A EP0418679B1 EP 0418679 B1 EP0418679 B1 EP 0418679B1 EP 90117326 A EP90117326 A EP 90117326A EP 90117326 A EP90117326 A EP 90117326A EP 0418679 B1 EP0418679 B1 EP 0418679B1
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EP
European Patent Office
Prior art keywords
drive
elevating platform
air cushion
platform according
lifting table
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 - Lifetime
Application number
EP90117326A
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German (de)
French (fr)
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EP0418679A1 (en
Inventor
Eckhard Ochs
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.)
HERKULES HEBETECHNIK GmbH
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HERKULES HEBETECHNIK GmbH
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Priority claimed from DE9005236U external-priority patent/DE9005236U1/de
Application filed by HERKULES HEBETECHNIK GmbH filed Critical HERKULES HEBETECHNIK GmbH
Publication of EP0418679A1 publication Critical patent/EP0418679A1/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
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • B66F7/085Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated pneumatically operated
    • 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
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065Scissor linkages, i.e. X-configuration
    • 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
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065Scissor linkages, i.e. X-configuration
    • B66F7/0658Multiple scissor linkages horizontally arranged
    • 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
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated

Definitions

  • the invention relates to a lifting platform for motor vehicles with a lifting table, an inflatable device for receiving the vehicle frame being provided on the lifting table.
  • Such a lifting platform is known from DE-B-1217571.
  • Lifting platforms with a supporting frame are known in various designs.
  • a lifting platform is known from DE-U-84 405 344, in which the lifting frame consists of four pairs of scissor arms arranged on a base plate, the lifting movement being effected by an air bellows arranged as a supporting frame between the base plate and the lifting table.
  • rubber blocks preferably four rubber blocks, must be placed on the lifting table at certain points, which hold the vehicle at the points provided on the frame bars to capture. The attachment of the rubber blocks on the lifting table is extremely cumbersome because the operating personnel have to bend over or go under the vehicle.
  • Another disadvantage is that after placing the rubber blocks on the lifting table of the lift there is a distance between the frame and the rubber block. Before the vehicle is lifted by the lift, this distance must first be overcome; it therefore represents an idle stroke for the lift, since this distance is no longer available at the maximum lift height of the lift.
  • a support frame of a lifting platform is known, in which cushions filled with fluid are arranged on the cross members.
  • the liquid pressure in the respective cushion is dimensioned so that the vehicle to be lifted presses with its corresponding frame part into the fluid cushion to such an extent that practically the entire area of the frame lying on the cushion is exposed to the same contact force.
  • an H-shaped lifting platform in which cushion bodies are provided on the cross members, which bear against the frame parts of the vehicle during lifting.
  • the task of these upholstery bodies, as in those according to DE-C-32 03 904, is to provide the frame parts lying on them with as large a contact surface as possible in order to keep the surface pressure low in order to counteract deformations on the frame parts.
  • these known upholstery bodies or pillows also have the disadvantage that the upholstery bodies have to be subsequently brought under the appropriate places on the frame by the operating personnel.
  • an empty stroke of the lifting platform cannot be avoided even with the above-described designs of cushion bodies.
  • the invention is therefore based on the object, based on the prior art, to provide a cushion body which does not have to be brought into the area of the load-bearing frame parts by the operating personnel after the vehicle has passed over the lifting platform, and which also has an idle stroke the lift is avoided.
  • the inflatable device is designed as at least two inflatable, in the unfilled state when driving over by a motor vehicle lying flat on the lifting table, each consisting of a part air cushion body. Due to the arrangement of inflatable air cushion bodies As support elements for the frame of a motor vehicle, it is achieved that the motor vehicle can drive over the already placed support element, since it only fulfills the supporting function when it is filled with air. In the unfilled state, the height of the pleasure pad body is so low that there is no resistance for the vehicle to be run over; ie even for lowered vehicles there are no problems when driving over a support frame provided with such cushion bodies as support elements.
  • a particularly advantageous embodiment of a lifting table is characterized in that the lifting table has, on both sides, parallel to the drive-up direction, a drive-over web, which is offset from the height of the central part of the lift table and on which at least one inflatable air cushion body is arranged.
  • the crossing web protrudes advantageously in its lateral extent beyond the base plate.
  • the advantage of this embodiment is that no ramps arranged in front of and behind the lifting platform are required to drive over the lifting platform by a vehicle.
  • the lifting table has a crossmember which is arranged transversely to the opening direction and has the same cross section as the lifting table.
  • the crossmember accommodates two air cushion bodies in the area of the ramp. a further two air cushion bodies are located opposite each other on the drive-over webs of the lifting table.
  • the traverse is arranged displaceably on the lifting table in the opening direction.
  • each air cushion body is protected by a flexible protective element, e.g. a tab, covered.
  • each drive-over web has an inflatable air cushion body which extends over its entire length.
  • a boom extending over the entire length of the ramp can also be provided, which has approximately the width of the ramp and which is hingedly connected to the ramp.
  • the air cushion body is connected to the outer edge of the boom by a supporting element, for example a soft plastic plate extending over the length of the air cushion body.
  • the soft plastic plate also serves to protect the air cushion body from external influences.
  • the lifting platform shown here, for example, as a short-stroke lifting platform, consists of a base plate designated by 1, a lifting frame 2 consisting of four pairs of scissor arms and the lifting table designated as a whole by 3.
  • the lifting table 3 here consists of a central part 4, to each of which a drive-over web 5 is assigned, which is offset from the height of the central part 4 of the lifting table.
  • the arms 6 are fastened in an articulated manner to the crossing bridge 5.
  • the air cushion body 7 is fixedly arranged on the drive-over web 5. A piece of fire hose can be used as the air cushion body.
  • the air cushion body 7 and the boom 6 are each connected to one another by a soft plastic plate 8. If the frame spar of a vehicle is located directly above the air cushion body 7, then when the air cushion body is inflated, the boom 6 is pulled upwards, that is to say folded upwards (FIG. 2).
  • the soft plastic plate 8 prevents damage to the air cushion body.
  • this measure of connecting the air cushion body 7 to the extension arm 6 extends the area of application of such a lifting platform to wider vehicles.
  • the plastic plate 8 lies almost flat on the extension arm 6 and the drive-over web 5 (shown in dashed lines in FIG. 2).
  • the lifting platform also shown here as a short-stroke lifting platform, consists of the base plate labeled 1 and the frame 2 consisting of four pairs of scissor arms and the lifting table labeled 3 in total.
  • the lifting table 3 consists of the middle part 4, to which the drive-over web 5 is assigned on both sides.
  • the height of the ramp is set down compared to the height of the middle section of the lifting table.
  • the crossbar 9 which is longitudinally displaceable in the direction of travel is also arranged.
  • the crossmember 9, which has the same cross-section as the lifting table 3, also has a central part 4 'with a crossing web 5' arranged on both sides.
  • the crossmember 9 is connected to the lifting table 3 by means of guide means 10.
  • the guide means 10 consists, for example, of a square profile 10a attached to the crossmember 9, which is guided in a correspondingly designed square profile 10b arranged on the lifting table.
  • the crossmember 9 has in the area of the crossing webs 5 'two inflatable air cushion body 11; a second pair of inflatable air cushion bodies 11 are each arranged on the drive-over webs 5 of the lifting table at the ends of the lifting table opposite the traverse.
  • the cushion bodies 11 are each covered by tabs 12, for example in the form of rubber flaps, in order to avoid damaging the actual cushion body, and a piece of a fire hose can again be used as the inflatable air cushion body.

Description

Die Erfindung betrifft eine Hebebühne für Kraftfahrzeuge mit einem Hubtisch, wobei auf dem Hubtisch eine aufblasbare Vorrichtung zur Aufnahme des Fahrzeugrahmens vorgesehen ist.The invention relates to a lifting platform for motor vehicles with a lifting table, an inflatable device for receiving the vehicle frame being provided on the lifting table.

Ein derartige Hebebühne ist aus der DE-B-1217571 bekannt.Such a lifting platform is known from DE-B-1217571.

Hebebühnen mit einem Traggestell sind in den verschiedensten Ausführungen bekannt. So ist beispielsweise aus dem DE-U-84 405 344 eine Hebebühne bekannt, bei der das Hebegestell aus vier auf einer Grundplatte angeordneten Scherenarmpaaren besteht, wobei die Hubbewegung durch einen zwischen Grundplatte und Hubtisch als Traggestell angeordneten Luftbalg erfolgt. Da das aufzubockende Kraftfahrzeug von dem Hubtisch am Fahrzeugboden, und hier speziell an den Rahmenholmen, nicht unmittelbar erfaßt werden kann, müssen auf dem Hubtisch an bestimmten Stellen Gummiklötze, vorzugsweise vier Gummiklötze, aufgesetzt werden, die das Fahrzeug an den dafür vorgesehenen Punkten an den Rahmenholmen erfassen. Das Anbringen der Gummiklötze auf dem Hubtisch ist überaus umständlich, weil das Bedienungspersonal sich hierzu bücken bzw. unter das Fahrzeug begeben muß.Lifting platforms with a supporting frame are known in various designs. For example, a lifting platform is known from DE-U-84 405 344, in which the lifting frame consists of four pairs of scissor arms arranged on a base plate, the lifting movement being effected by an air bellows arranged as a supporting frame between the base plate and the lifting table. Since the motor vehicle to be jacked up cannot be directly grasped by the lifting table on the vehicle floor, and here in particular on the frame bars, rubber blocks, preferably four rubber blocks, must be placed on the lifting table at certain points, which hold the vehicle at the points provided on the frame bars to capture. The attachment of the rubber blocks on the lifting table is extremely cumbersome because the operating personnel have to bend over or go under the vehicle.

Darüber hinaus ist als weiterer Nachteil festzuhalten, daß nach dem Aufsetzen der Gummiklötze auf den Hubtisch der Hebebühne zwischen Rahmen und Gummiklotz ein Abstand besteht. Bevor das Fahrzeug durch die Hebebühne angehoben wird, muß dieser Abstand zunächst überwunden werden; er stellt somit einen Leerhub für die Hebebühne dar, da dieser Abstand bei maximaler Hubhöhe der Hebebühne nicht mehr zur Verfügung steht.Another disadvantage is that after placing the rubber blocks on the lifting table of the lift there is a distance between the frame and the rubber block. Before the vehicle is lifted by the lift, this distance must first be overcome; it therefore represents an idle stroke for the lift, since this distance is no longer available at the maximum lift height of the lift.

Aus der DE-C-32 03 904 ist ein Traggestell einer Hebebühne bekannt, bei dem auf den Querträgern mit Fluid gefüllte Kissen angeordnet sind.From DE-C-32 03 904 a support frame of a lifting platform is known, in which cushions filled with fluid are arranged on the cross members.

Der Flüssigkeitsdruck in dem jeweiligen Kissen ist hierbei so bemessen, daß sich das anzuhebende Fahrzeug mit seinem entsprechenden Rahmenteil in das Fluidkissen soweit eindrückt, daß praktisch der gesamte auf dem Kissen aufliegende Bereich des Rahmens der gleichen Auflagekraft ausgesetzt sind.The liquid pressure in the respective cushion is dimensioned so that the vehicle to be lifted presses with its corresponding frame part into the fluid cushion to such an extent that practically the entire area of the frame lying on the cushion is exposed to the same contact force.

Aus der DE-C-33 09 902 ist ebenfalls eine H-förmig ausgebildete Hebebühne bekannt, bei der auf den Querträgern Polsterkörper vorgesehen sind, die an den Rahmenteilen des Fahrzeugs während des Anhebens anliegen. Die Aufgabe dieser Polsterkörper besteht ebenso wie bei denen gemäß der DE-C-32 03 904 darin, den darauf aufliegenden Rahmenteilen eine möglichst große Auflagefläche zur Verfügung zu stellen, um die Flächenpressung gering zu halten, um hierdurch Verformungen an den Rahmenteilen entgegenzuwirken. Diese bekannten Polsterkörper oder Kissen weisen darüber hinaus aber noch den Nachteil auf, daß die Polsterkörper nachträglich vom Bedienungspersonal von Hand unter die entsprechenden Stellen am Rahmen gebracht werden müssen. Darüber hinaus ist auch mit den oben beschriebenen Ausbildungen von Polsterkörpern ein Leerhub der Hebebühne nicht zu vermeiden.From DE-C-33 09 902 an H-shaped lifting platform is also known, in which cushion bodies are provided on the cross members, which bear against the frame parts of the vehicle during lifting. The task of these upholstery bodies, as in those according to DE-C-32 03 904, is to provide the frame parts lying on them with as large a contact surface as possible in order to keep the surface pressure low in order to counteract deformations on the frame parts. However, these known upholstery bodies or pillows also have the disadvantage that the upholstery bodies have to be subsequently brought under the appropriate places on the frame by the operating personnel. In addition, an empty stroke of the lifting platform cannot be avoided even with the above-described designs of cushion bodies.

Der Erfindung liegt daher die Aufgabe zugrunde, ausgehend vom Stand der Technik, einen Polsterkörper zu schaffen, der nicht vom Bedienungspersonal, nach dem Überfahren der Hebebühne durch das Fahrzeug, in den Bereich der tragenden Rahmenteile gebracht werden muß, und durch den darüber hinaus ein Leerhub der Hebebühne vermieden wird.The invention is therefore based on the object, based on the prior art, to provide a cushion body which does not have to be brought into the area of the load-bearing frame parts by the operating personnel after the vehicle has passed over the lifting platform, and which also has an idle stroke the lift is avoided.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die aufblasbare Vorrichtung als mindestens zwei aufblasbare, im unbefüllten Zustand beim Hinüberfahren durch ein Kraftfahrzeug flach auf dem Hubtisch aufliegende, jeweils aus einem Teil bestehende Luftpolsterkörper ausgebildet ist. Durch die Anordnung von aufblasbaren Luftpolsterkörpern als Auflageelemente für den Rahmen eines Kraftfahrzeuges wird erreicht, daß das Kraftfahrzeug über das bereits plazierte Auflageelement hinüberfahren kann, da es die Tragfunktion erst dann erfüllt, wenn es mit Luft befüllt ist. Im unbefüllten Zustand ist die Höhe des Lustpolsterkörpers derart gering, daß hierdurch keinerlei Widerstand für das zu überfahrende Fahrzeug geboten wird; d.h. selbst für tiefergelegte Fahrzeuge bestehen beim Überfahren eines mit derartigen Polsterkörpern als Auflageelemente versehenen Traggestelles keine Probleme.The object is achieved in that the inflatable device is designed as at least two inflatable, in the unfilled state when driving over by a motor vehicle lying flat on the lifting table, each consisting of a part air cushion body. Due to the arrangement of inflatable air cushion bodies As support elements for the frame of a motor vehicle, it is achieved that the motor vehicle can drive over the already placed support element, since it only fulfills the supporting function when it is filled with air. In the unfilled state, the height of the pleasure pad body is so low that there is no resistance for the vehicle to be run over; ie even for lowered vehicles there are no problems when driving over a support frame provided with such cushion bodies as support elements.

Der Einsatz derartiger aufblasbarer Luftpolsterkörper ist auch bei Hebebühnen mit Traggestellen möglich, wie sie beispielsweise aus der DE-C-33 09 902 bekannt sind.The use of such inflatable air cushion bodies is also possible in the case of lifting platforms with supporting frames, as are known, for example, from DE-C-33 09 902.

Eine besonders vorteilhafte Ausführungsform eines Hubtisches zeichnet sich dadurch aus, daß der Hubtisch parallel zur Auffahrrichtung beidseitig jeweils einen gegenüber der Höhe des Mittelteiles des Hubtisches nach unten abgesetzten Überfahrsteg aufweist, auf dem jeweils mindestens ein aufblasbarer Luftpolsterkörper angeordnet ist. Hierbei ragt der Überfahrsteg in vorteilhafter Weise in seiner seitlichen Erstreckung über die Grundplatte hinaus.A particularly advantageous embodiment of a lifting table is characterized in that the lifting table has, on both sides, parallel to the drive-up direction, a drive-over web, which is offset from the height of the central part of the lift table and on which at least one inflatable air cushion body is arranged. In this case, the crossing web protrudes advantageously in its lateral extent beyond the base plate.

Der Vorteil dieser Ausführungsform liegt darin, daß hierbei keine vor und hinter der Hebebühne angeordneten Auffahrrampen zum Überfahren der Hebebühne durch ein Fahrzeug erforderlich sind.The advantage of this embodiment is that no ramps arranged in front of and behind the lifting platform are required to drive over the lifting platform by a vehicle.

Nach einem besonderem Merkmal dieser Ausführungsform weist der Hubtisch eine quer zur Auffahrrichtung angeordnete Traverse auf, die den gleichen Querschnitt wie der Hubtisch aufweist. Die Traverse nimmt hierbei im Bereich des Überfahrsteges zwei Luftpolsterkörper auf; weitere zwei Luftpolsterkörper befinden sich dazu gegenüberliegend auf den Überfahrstegen des Hubtisches. Die Traverse ist hierbei in Auffahrrichtung verschieblich an dem Hubtisch angeordnet. Durch diese Art der Ausbildung des Hubtisches wird erreicht, daß der Hubtisch jeder Fahrzeuggröße, und hier insbesondere jeder Achsabstandslänge eines Fahrzeugs, angepaßt werden kann, so daß auch Fahrzeuge mit unterschiedlich langem Achsabstand sicher angehoben werden können.According to a special feature of this embodiment, the lifting table has a crossmember which is arranged transversely to the opening direction and has the same cross section as the lifting table. The crossmember accommodates two air cushion bodies in the area of the ramp. a further two air cushion bodies are located opposite each other on the drive-over webs of the lifting table. The traverse is arranged displaceably on the lifting table in the opening direction. This type of design of the lifting table ensures that the lifting table can be adapted to any vehicle size, and here in particular to each center-to-center length of a vehicle, so that vehicles with different center-to-center distances can also be safely lifted.

Um eine Beschädigung der Luftpolsterkörper zu verhindern, ist jeder Luftpolsterkörper durch ein nachgiebiges Schutzelement, z.B. eine Lasche, abgedeckt.In order to prevent damage to the air cushion body, each air cushion body is protected by a flexible protective element, e.g. a tab, covered.

Nach einer weiteren Ausführungsform eines Hubtisches weist jeder Überfahrsteg einen sich über seine gesamte Länge erstreckenden aufblasbaren Luftpolsterkörper auf. Der Vorteil dieser Ausführungsform besteht darin, daß das Fahrzeug nicht nur an vier einzelnen Punkten erfaßt wird, sondern daß vielmehr die Hubkraft auf eine viel größere Fläche des Fahrzeuges verteilt werden kann.According to a further embodiment of a lifting table, each drive-over web has an inflatable air cushion body which extends over its entire length. The advantage of this embodiment is that the vehicle is not only detected at four individual points, but rather that the lifting force can be distributed over a much larger area of the vehicle.

Hierbei kann ebenfalls ein sich über die gesamte Länge des Überfahrsteges erstreckender Ausleger vorgesehen sein, der in etwa die Breite des Überfahrstegs besitzt und der mittels Scharniere mit dem Überfahrsteg gelenkig verbunden ist.In this case, a boom extending over the entire length of the ramp can also be provided, which has approximately the width of the ramp and which is hingedly connected to the ramp.

Bei dieser Ausführungsform ist der Luftpolsterkörper durch ein Tragelement, beispielsweise eine sich über die Länge des Luftpolsterkörpers erstreckende Weichkunststoffplatte, mit dem äußeren Rand des Auslegers verbunden. Die Weichkunststoffplatte dient hierbei auch dem Schutz des Luftpolsterkörpers vor äußeren Einwirkungen. Der Vorteil dieser Ausbildung liegt darin, daß hiermit auch besonders breite Fahrzeuge von der Hebebühne, und hier speziell von der Kunststoffplatte, aufgenommen werden können, wobei sichergestellt ist, daß für das Bedienungspersonal, für den Fall, daß sich ein schmales Auto auf der Hebebühne befindet, durch diese Ausleger keinerlei Verletzungsgefahr ausgeht, da sich diese Ausleger bei Auftreffen auf einen Gegenstand nach oben wegklappen. Eine weitere Verminderung der Unfallgefahr erfolgt im übrigen noch dadurch, daß bei Aufblasen des Luftpolsterkörpers die seitlichen Ausleger im unbelasteten Zustand zwangsweise nach oben abklappen.In this embodiment, the air cushion body is connected to the outer edge of the boom by a supporting element, for example a soft plastic plate extending over the length of the air cushion body. The soft plastic plate also serves to protect the air cushion body from external influences. The advantage of this training is that it can be used to accommodate particularly wide vehicles from the lift, and here in particular from the plastic plate, ensuring that the operator, in the event that a narrow car is on the lift , there is no risk of injury from these booms because these booms fold up when they hit an object. A further reduction in the risk of accidents is further achieved by the fact that when the air cushion body is inflated, the side arms are forced to fold upward in the unloaded state.

Als besonders vorteilhaft hat sich die Verwendung eines Stückes eines Feuerwehrschlauches zum Einsatz als Luftpolsterkörper erwiesen. Dies deshalb, weil ein derartiger Schlauch äußerst widerstandsfähig gegenüber chemischen Einflüssen ist und darüber hinaus im luftlosen Zustand keinerlei Wölbung besitzt.The use of a piece of fire hose for use as an air cushion body has proven to be particularly advantageous. This is because such a hose is extremely resistant to chemical influences and, in addition, has no curvature in the airless state.

In der Zeichnung sind drei beispielsweise Ausführungsformen einer Hebebühne mit Traggestell dargestellt.

Fig. 1
zeigt eine erste Ausführungsform einer Hebebühne mit Hubtisch in einer perspektivischen Darstellung;
Fig. 2
zeigt einen Schnitt gemäß der Linie II-II aus Fig. 1, wobei die Grundplatte und das Hebegestell weggelassen sind;
Fig. 3
zeigt eine zweite Ausführungsform einer Hebebühne mit Hubtisch in einer perspektivischen Darstellung.
In the drawing, three exemplary embodiments of a lifting platform with a supporting frame are shown.
Fig. 1
shows a first embodiment of a lifting platform with a lifting table in a perspective view;
Fig. 2
shows a section along the line II-II of Figure 1, with the base plate and the lifting frame are omitted.
Fig. 3
shows a second embodiment of a lifting platform with a lifting table in a perspective view.

Gemäß Fig. 1 besteht die Hebebühne, hier beispielsweise als Kurzhub-Hebebühne dargestellt, aus einer mit 1 bezeichneten Grundplatte, einem aus vier Scherenarmpaaren bestehenden Hebegestell 2 und dem insgesamt mit 3 bezeichneten Hubtisch. Der Hubtisch 3 besteht hierbei aus einem Mittelteil 4, dem zu beiden Seiten jeweils ein Überfahrsteg 5 zugeordnet ist, der gegenüber der Höhe des Mittelteiles 4 des Hubtisches nach unten abgesetzt ist. An dem Überfahrsteg 5 sind gelenkig die Ausleger 6 befestigt. Auf dem Überfahrsteg 5 ist fest der Luftpolsterkörper 7 angeordnet. Als Luftpolsterkörper kann hierbei ein Stück eines Feuerwehrschlauches Verwendung finden. Der Luftpolsterkörper 7 und der Ausleger 6 sind jeweils durch eine Weichkunststoffplatte 8 miteinander verbunden. Befindet sich somit der Rahmenholm eines Fahrzeuges unmittelbar über dem Luftpolsterkörper 7, dann wird beim Aufblasen des Luftpolsterkörpers der Ausleger 6 nach oben gezogen, also nach oben abgeklappt (Fig. 2).1, the lifting platform, shown here, for example, as a short-stroke lifting platform, consists of a base plate designated by 1, a lifting frame 2 consisting of four pairs of scissor arms and the lifting table designated as a whole by 3. The lifting table 3 here consists of a central part 4, to each of which a drive-over web 5 is assigned, which is offset from the height of the central part 4 of the lifting table. The arms 6 are fastened in an articulated manner to the crossing bridge 5. The air cushion body 7 is fixedly arranged on the drive-over web 5. A piece of fire hose can be used as the air cushion body. The air cushion body 7 and the boom 6 are each connected to one another by a soft plastic plate 8. If the frame spar of a vehicle is located directly above the air cushion body 7, then when the air cushion body is inflated, the boom 6 is pulled upwards, that is to say folded upwards (FIG. 2).

In diesem Fall besteht keinerlei Verletzungsgefahr für das Bedienungspersonal durch diese Ausleger 6. Außerdem verhindert die Weichkunststoffplatte 8 eine Beschädigung des Luftpolsterkörpers.In this case, there is no risk of injury for the operating personnel through these arms 6. In addition, the soft plastic plate 8 prevents damage to the air cushion body.

Andererseits wird durch diese Maßnahme der Verbindung des Luftpolsterkörpers 7 mit dem Ausleger 6 der Einsatzbereich einer derartigen Hebebühne auch auf breitere Fahrzeuge erweitert. Im nicht aufgeblasenen Zustand des Luftpolsterkörpers 7 liegt die Kunststoffplatte 8 nahezu eben auf dem Ausleger 6 und dem Überfahrsteg 5 auf (Fig. 2 gestrichelt dargestellt).On the other hand, this measure of connecting the air cushion body 7 to the extension arm 6 extends the area of application of such a lifting platform to wider vehicles. When the air cushion body 7 is not inflated, the plastic plate 8 lies almost flat on the extension arm 6 and the drive-over web 5 (shown in dashed lines in FIG. 2).

Gemäß Fig. 3 besteht die Hebebühne, hier ebenfalls als Kurzhub-Hebebühne dargestellt, aus der mit 1 bezeichneten Grundplatte und dem aus vier Scherenarmpaaren bestehenden Gestell 2 und dem insgesamt mit 3 bezeichneten Hubtisch. Der Hubtisch 3 besteht hierbei aus dem Mittelteil 4, dem zu beiden Seiten jeweils der Überfahrsteg 5 zugeordnet ist. Auch hier ist der Überfahrsteg in seiner Höhe gegenüber der Höhe des Mittelteiles des Hubtisches nach unten abgesetzt. An dem Hubtisch 3 ist darüber hinaus die in Überfahrrichtung längsverschiebliche Traverse 9 angeordnet. Die Traverse 9, die den gleichen Querschnitt wie der Hubtisch 3 aufweist, besitzt ebenfalls ein Mittelteil 4′ mit einem jeweils zu beiden Seiten angeordneten Überfahrsteg 5′. Die Traverse 9 ist durch Führungsmittel 10 mit dem Hubtisch 3 verbunden.According to FIG. 3, the lifting platform, also shown here as a short-stroke lifting platform, consists of the base plate labeled 1 and the frame 2 consisting of four pairs of scissor arms and the lifting table labeled 3 in total. The lifting table 3 consists of the middle part 4, to which the drive-over web 5 is assigned on both sides. Here, too, the height of the ramp is set down compared to the height of the middle section of the lifting table. On the lifting table 3, the crossbar 9 which is longitudinally displaceable in the direction of travel is also arranged. The crossmember 9, which has the same cross-section as the lifting table 3, also has a central part 4 'with a crossing web 5' arranged on both sides. The crossmember 9 is connected to the lifting table 3 by means of guide means 10.

Das Führungsmittel 10 besteht beispielsweise aus einem an der Traverse 9 angebrachten Vierkantprofil 10a, das in einem am Hubtisch angeordneten entsprechend ausgebildeten Vierkantprofil 10b geführt ist.The guide means 10 consists, for example, of a square profile 10a attached to the crossmember 9, which is guided in a correspondingly designed square profile 10b arranged on the lifting table.

Die Traverse 9 weist im Bereich der Überfahrstege 5′ zwei aufblasbare Luftpolsterkörper 11 auf; ein zweites Paar aufblasbarer Luftpolsterkörper 11 ist jeweils auf den Überfahrstegen 5 des Hubtisches an den der Traverse gegenüberliegenden Enden des Hubtisches angeordnet. Die Polsterkörper 11 sind jeweils von Laschen 12, beispielsweise in Form von Gummilappen überdeckt, um eine Beschädigung des eigentlichen Polsterkörpers zu vermeiden, wobei als aufblasbarer Luftpolsterkörper wiederum ein Stück eines Feuerwehrschlauches Verwendung finden kann.The crossmember 9 has in the area of the crossing webs 5 'two inflatable air cushion body 11; a second pair of inflatable air cushion bodies 11 are each arranged on the drive-over webs 5 of the lifting table at the ends of the lifting table opposite the traverse. The cushion bodies 11 are each covered by tabs 12, for example in the form of rubber flaps, in order to avoid damaging the actual cushion body, and a piece of a fire hose can again be used as the inflatable air cushion body.

Claims (13)

  1. Elevating platform for motor vehicles, comprising a lifting table (3), wherein an inflatable device for reception of the vehicle chassis is provided on the lifting table (3), characterised thereby that the inflatable device is constructed as at least two inflatable air cushion bodies (7, 11) each consisting of one part and in the unfilled state lying flat on the lifting table (3) when driven over by a motor vehicle.
  2. Elevating platform according to claim 1, characterised thereby that the lifting table (3) has, parallel to the drive-on direction, at each side a respective drive-over flange (5) displaced downwardly relative to the height of the middle part (4) of the lifting table (3).
  3. Elevating platform according to claim 2, characterised thereby that it comprises a base plate (1) for the reception of the lifting frame (2), wherein the drive-over web (5) projects, in its lateral extent, beyond the base plate (1).
  4. Elevating platform according to claim 2, characterised thereby that at least one air cushion body (7, 11) is arranged on each drive-over flange (5).
  5. Elevating platform according to one of claims 2 to 4, characterised thereby that the lifting table (3) has a crossbeam (4) which is arranged transversely to the drive-on direction and receives the two air cushion bodies (11).
  6. Elevating platform according to claim 5, characterised thereby that the crossbeam (9) is arranged at the lifting table (3) to be displaceable in drive-on direction.
  7. Elevating platform according to claim 1, characterised thereby that the air cushion body (11) is covered by a flexible protective element, for example a strap (12).
  8. Elevating platform according to claim 2, characterised thereby that the two air cushion bodies (7) constructed in hose shape are arranged parallel to the drive-on direction on the two drive-over flanges (5).
  9. Elevating platform according to claim 8, characterised thereby that the drive-over flange (5) comprises an outrigger (6) which extends over the entire length thereof, has approximately the width of the drive-over flange (5) and is pivotably connected with the drive-over flange (5) by means of hinges.
  10. Elevating platform according to claim 9, characterised thereby that the air cushion body (7) is connected with the outer edge of the outrigger (6) by a carrier element (8) arranged centrally on its upper side.
  11. Elevating platform according to claim 10, characterised thereby that the carrier element (8) is a plate of soft synthetic material, which also serves for the protection of the air cushion body (7).
  12. Elevating platform according to claim 10, characterised thereby that the carrier element (8) extends over the entire length of the air cushion body (7).
  13. Elevating platform according to claim 1, characterised thereby that a fire brigade hose is used as inflatable air cushion body (7, 11).
EP90117326A 1989-09-16 1990-09-08 Lifting platform for motor vehicles Expired - Lifetime EP0418679B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3930988 1989-09-16
DE3930988 1989-09-16
DE9005236U DE9005236U1 (en) 1990-05-08 1990-05-08
DE9005236U 1990-05-08

Publications (2)

Publication Number Publication Date
EP0418679A1 EP0418679A1 (en) 1991-03-27
EP0418679B1 true EP0418679B1 (en) 1994-05-18

Family

ID=25885243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90117326A Expired - Lifetime EP0418679B1 (en) 1989-09-16 1990-09-08 Lifting platform for motor vehicles

Country Status (2)

Country Link
EP (1) EP0418679B1 (en)
DE (1) DE59005729D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040659A (en) * 2019-04-16 2019-07-23 重庆奥图亚模型有限公司 Air-floated movable lifting machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0107999D0 (en) * 2001-03-30 2001-05-23 Mangar Int Ltd Lifting and lowering apparatus
CN111776986A (en) * 2020-06-22 2020-10-16 江西江铃汽车集团改装车股份有限公司 Lifting device of special equipment of detection vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217571B (en) * 1965-04-20 1966-05-26 Wilhelm Ochs Pneumatic lifting device
DE3203904C1 (en) * 1982-02-05 1983-10-13 Volkswagenwerk Ag, 3180 Wolfsburg Lifting platform for motor vehicles
EP0221117A1 (en) * 1985-05-13 1987-05-13 HIRMANN, Georg Power cell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040659A (en) * 2019-04-16 2019-07-23 重庆奥图亚模型有限公司 Air-floated movable lifting machine

Also Published As

Publication number Publication date
EP0418679A1 (en) 1991-03-27
DE59005729D1 (en) 1994-06-23

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