EP1362823B1 - Vehicle lift with carrying arms - Google Patents

Vehicle lift with carrying arms Download PDF

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Publication number
EP1362823B1
EP1362823B1 EP03010040A EP03010040A EP1362823B1 EP 1362823 B1 EP1362823 B1 EP 1362823B1 EP 03010040 A EP03010040 A EP 03010040A EP 03010040 A EP03010040 A EP 03010040A EP 1362823 B1 EP1362823 B1 EP 1362823B1
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EP
European Patent Office
Prior art keywords
scissor
lever
lifting platform
levers
height adjustment
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
EP03010040A
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German (de)
French (fr)
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EP1362823A1 (en
Inventor
Hans 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 EP1362823A1 publication Critical patent/EP1362823A1/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
    • 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
    • B66F7/02Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars

Definitions

  • the invention relates to a lift for motor vehicles with swiveling and usually also length-adjustable support arms, which are on both sides of the to be lifted Vehicle are mounted on lifting elements and their free ends over Swivel lever carry height-adjustable mounting plates, the front and rear under the vehicle to four - mostly in the interaxle area - Support points of the vehicle are movable and in different Height positions are lockable.
  • Such lifts are known in numerous embodiments, both as under-floor lifts as well as column lifts.
  • Your swiveling and length-adjustable support arms have the advantage that the four Manufacturer-prescribed support points on the underside of the vehicle easy and accurate with the support arm ends can reach, even then, if the lift is to be used for vehicles of different sizes.
  • the four support arms can again be swung back - generally in a position parallel to Vehicle longitudinal axis - and the vehicle can then forward or backward be moved out of the lift.
  • the support arms should be adjustable over a wide range. Most of time Telescopic arms are used to keep them in an unused condition can be moved together and are not disturbing in the way.
  • These mounting plates can be adjusted in height by means of threaded spindles Wearing arms should be stored, so that vehicles with laterally wide pulled down sills, spoilers or the like when booting the Do not sit on a support lift on the support arms, but with their four on the receiving plates prescribed by the manufacturer come lie.
  • the mounting plate is screwed more or less far down be to pivot the support arms under the vehicle enable. Did the side skirts, spoilers or the like happen the receiving plates must be screwed up again, and that far, that they are at the start of the lift to the prescribed Attack the vehicle's support points before the support arms in the immediate Near the side skirts or the like come. This high and Unscrewing the mounting plate is with some circumstance and Time required, especially since the screwing up can only take place when the brackets are under the vehicle.
  • a motor vehicle lift with a height adjustment of the receiving plate is in EP-A-0 300 142 discloses.
  • the present invention has the object underlying, the height adjustment of the receiving plate relative to their support arms on the one hand to bring about rapid and user-friendly, but on the other hand the occurring in the known pivot lever construction lateral offset completely or at least largely eliminated. It should be the inventive design by inexpensive and distinguished user-friendly structure.
  • This object is achieved in that the Height adjustment of the receiving plate over at least two each intersecting, pivotally connected in the crossing point, vertically pivotable Scissors takes place and that the receiving plate with that Scissors lever is hinged, whose lower end at the Height adjustment performs a horizontal displacement.
  • the lift according to the invention is characterized by high Operation safety and fast set-up times and is also suitable for such vehicles with particularly long side sills, Spoilers or the like are equipped.
  • the locking of the scissors lever in the desired height position takes place expediently by at least one vertically pivotable pawl, the positively engages in a toothing on at least one scissor lever and its downward movement blocked.
  • the pawl alternatively or additionally has a further support area, which is used to support the Recording plate serves.
  • both levers in clearly different lengths provide, in particular the operating lever for the lifting movement significantly to make longer than the pawl and him on the opposite side to arrange the pawl.
  • a lifting element 1a and 2a vertically is movably mounted.
  • This lifting element 1a, 2a is known per se Hydraulic way or by a threaded spindle or otherwise driven. It carries two pivot bearings 1b, 1c and 2b, 2c horizontally pivotable support arms 3, 4 and 5, 6, at their free ends height-adjustable support plates 7, 8 and 9, 10 and have with them Tragtellern at the manufacturer's prescribed bases on the Attack vehicle underside.
  • the support arms 3 to 6 each in two Tragarm developed with each other by a central pivot bearing 33rd or 34 or 35 or 36 are connected to each other.
  • This central Swivel bearing has a vertical axis, as well as the pivot bearing 1b, 1c or 2b, 2c, with which the first Tragarm laminate 13, 14, 15, 16 on the lifting element 1a or 2a is stored. This allows the Tragarm thoroughlye one and the same Support arm each scissor-like relative to each other in the horizontal direction be pivoted.
  • the pivot bearing 1b, 1c and 2b, 2c on the respective lifting element 1a and 2a is formed so that the hinged thereto support arm pieces 13, 14, 15, 16 as far as can be swung back that, as shown in Figures 1 and 2, from Vehicle are directed away.
  • This will be the area that ends with the free ends the support arms can be approached, substantially increased.
  • This area is in Figure 1 shown, which is additionally taken into account that the outer Tragarm Republice 23, 24, 25, 26 each still a telescopic extension exhibit.
  • an extraordinarily broad vehicle spectrum can be covered, from the mini-class to the Sprinter class.
  • FIGS. 2 to 5 each show the free end of a support arm, For example, the support arm 4 shown with its receiving plate 8, however in different height positions.
  • the receiving plate 8 rests on two intersecting Scissor levers 41 and 42, wherein behind said scissor levers a another pair of similar scissor lever is located so that the receiving plate 8 on a total of four scissor levers.
  • the scissor lever 42 is hinged at its lower end 42a at the end of Support arm mounted and in its central region via a scissors joint 43rd connected to the other scissor lever 41, so that both scissor levers are vertically pivotable.
  • the lower end of the scissors lever 41, the from End of the support arm 4 is directed away, slides in this pivotal movement on a corresponding surface of the support arm 4 or is over a transverse pin 41a in a horizontal guide slot in a vertical wall portion of Support arm stored.
  • the receiving plate 8 is at its outer end via a Swivel bearing 8a connected to the scissor lever 41, whereas he at his opposite, inner end region loose on the scissor lever 42 and / or on a pawl 44 rests. As far as in some figures a gap between Receiving plate 8 and scissor lever 42 is present, this is based on a Drawing inaccuracy.
  • the pawl 44 has the task, the two scissor levers 41 and 42nd or the receiving plate 8 in the desired height position lock. For this she is at her one end on the scissor lever 42 or on Support arm mounted pivotally, whereas their other end in a toothing 41b the scissor lever 41 engages. In this way, the pawl 44 forms a adjustable stop between the two scissor levers 41 and 42, wherein this stop due to the teeth 41b in several successive Swivel positions of the scissor lever and thus different Height positions of the receiving plate 8 is effective.
  • the pawl 44 has an additional Support area 44a. On this support portion 44a of the receiving plate comes to lie when moving from the lower rest position to the next higher position is adjusted. This reduces the spreading of the lever 44 and the Scherengelenk 43 to be absorbed reaction forces, otherwise at almost Collapsed scissor levers would be very high.
  • FIG. 3 shows the receiving plate in the next higher position. There will be a another support surface 44b of the pawl effectively, in which the scissor lever 42 with a nose 42b at the upper end portion on this support surface 44b supported.
  • the receiving plate is based solely on its Scissor levers 41 and 42 from. You can also see that by the special Contour at the top of the scissor lever 42 always an approximately horizontal Position of the receiving plate 8 - regardless of its height position - is guaranteed.
  • the horizontal section according to FIG. 6 clarifies that parallel with distance to the scissor levers 41 and 42 similar scissor levers 41 'and 42' on Support arm are stored, the receiving plate so of four scissor levers is held and how their operation and locking takes place.
  • This operating lever 45 stands slightly off the support arm 4 and runs in the direction of the lifting column 1, so that he even with under the vehicle pivoted support arms still good from the outside is accessible.
  • a downward pivoting of the operating lever 45 lifts the Scissor lever 41 from its flat lower rest position, in which the Receiving plate 8 approximately with the top of its support arm is aligned, out to to the desired height position.
  • FIG 7 illustrates.
  • This pivot lever 46 is also slightly off the support arm, but preferably on the opposite side as the operating lever 45 for the Height adjustment.
  • Figures 8 and 9 show the two side views, where you once the Operating lever 45 for the height adjustment, the other time the lever 46th for releasing the pawls 44 and 44 'recognizes.
  • the pawls fall 44 and 44 'each through her Dead weight in the locked position. It is, of course, also in the Frame of the invention to provide an additional spring contact.
  • the invention is characterized in that the Recording plates with the simplest operation relatively large positioning movements can perform and more or less exactly in the vertical direction procedure, so that the prescribed bases on the vehicle underside be taken reliably.

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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)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Body Structure For Vehicles (AREA)
  • Seats For Vehicles (AREA)

Abstract

The two vertical columns (1,2) have pairs of horizontal stabilizing arms (3-6) which have hinges (34,36) on their midpoints and height-adjustable feet or lifting pads (7-10) on their ends. The height adjustment may be achieved using ratchet levers. The vehicle lifting elements (1a,2a) are attached to the vertical columns.

Description

Die Erfindung betrifft eine Hebebühne für Kraftfahrzeuge mit schwenkbaren und meist auch längenverstellbaren Tragarmen, die beidseits des zu hebenden Fahrzeuges an Hubelementen gelagert sind und deren freien Enden über Schwenkhebel höhenverstellbare Aufnahmeteller tragen, die vorne und hinten unter das Fahrzeug zu vier - meist im Zwischenachsbereich liegenden - Stützpunkten des Fahrzeuges bewegbar sind und die in unterschiedlichen Höhenpositionen arretierbar sind.The invention relates to a lift for motor vehicles with swiveling and usually also length-adjustable support arms, which are on both sides of the to be lifted Vehicle are mounted on lifting elements and their free ends over Swivel lever carry height-adjustable mounting plates, the front and rear under the vehicle to four - mostly in the interaxle area - Support points of the vehicle are movable and in different Height positions are lockable.

Derartige Hebebühnen sind in zahlreichen Ausführungsformen bekannt, sowohl als Unterflur-Hebebühnen wie auch als Säulen-Hebebühnen. Ihre schwenkbaren und längenverstellbaren Tragarme haben den Vorteil, dass man die vier herstellerseitig vorgeschriebenen Stützpunkte an der Fahrzeugunterseite einfach und genau mit den Tragarm-Enden erreichen kann, und zwar auch dann, wenn die Hebebühne für verschieden große Fahrzeuge verwendet werden soll.Such lifts are known in numerous embodiments, both as under-floor lifts as well as column lifts. Your swiveling and length-adjustable support arms have the advantage that the four Manufacturer-prescribed support points on the underside of the vehicle easy and accurate with the support arm ends can reach, even then, if the lift is to be used for vehicles of different sizes.

Nach dem Absenken des Fahrzeuges können die vier Tragarme wieder zurückgeschwenkt werden - im allgemeinen in eine Position parallel zur Fahrzeuglängsachse - und das Fahrzeug kann dann vorwärts oder rückwärts aus der Hebebühne herausgefahren werden.After lowering the vehicle, the four support arms can again be swung back - generally in a position parallel to Vehicle longitudinal axis - and the vehicle can then forward or backward be moved out of the lift.

Damit die Hebebühne für möglichst viele unterschiedliche Fahrzeuge eingesetzt werden kann, sollten die Tragarme in weitem Rahmen verstellbar sein. Meist werden teleskopierbare Tragarme verwendet, damit sie in unbenutztem Zustand zusammengefahren werden können und nicht störend im Weg stehen. So that the lift used for as many different vehicles can be, the support arms should be adjustable over a wide range. Most of time Telescopic arms are used to keep them in an unused condition can be moved together and are not disturbing in the way.

Um eine stabile Auflage des Fahrzeuges auf den einschwenkbaren Tragarmen zu gewährleisten, tragen sie an ihren freien Enden meist runde Aufnahmeteller, die nach oben vorstehen.To a stable support of the vehicle on the swinging support arms To ensure they carry at their free ends usually round receiving plate, which protrude upwards.

Diese Aufnahmeteller können über Gewindespindeln höhenverstellbar an ihren Tragarmen gelagert sein, damit auch Fahrzeuge mit seitlich weit heruntergezogenen Schwellern, Spoilern oder dergleichen beim Hochfahren der Hebebühne nicht auf den Tragarmen aufsitzen, sondern mit ihren vier herstellerseitig vorgeschriebenen Stützpunkten auf den Aufnahmetellern zu liegen kommen. Je nach Bodenfreiheit des Fahrzeuges müssen die Aufnahmeteller zunächst mehr oder weniger weit nach unten geschraubt werden, um das Einschwenken der Tragarme unter das Fahrzeug zu ermöglichen. Sind die Seitenschweller, Spoiler oder dergleichen passiert, müssen die Aufnahmeteller wieder hochgeschraubt werden, und zwar soweit, dass sie beim Hochfahren der Hebebühne an den vorgeschriebenen Stützpunkten des Fahrzeuges angreifen, bevor die Tragarme in die unmittelbare Nähe der Seitenschweller oder dergleichen kommen. Dieses Hoch- und Herunterschrauben der Aufnahmeteller ist mit einigem Umstand und Zeitaufwand verbunden, zumal das Hochschrauben erst dann erfolgen kann, wenn sich die Tragarme unter dem Fahrzeug befinden.These mounting plates can be adjusted in height by means of threaded spindles Wearing arms should be stored, so that vehicles with laterally wide pulled down sills, spoilers or the like when booting the Do not sit on a support lift on the support arms, but with their four on the receiving plates prescribed by the manufacturer come lie. Depending on the ground clearance of the vehicle must First, the mounting plate is screwed more or less far down be to pivot the support arms under the vehicle enable. Did the side skirts, spoilers or the like happen the receiving plates must be screwed up again, and that far, that they are at the start of the lift to the prescribed Attack the vehicle's support points before the support arms in the immediate Near the side skirts or the like come. This high and Unscrewing the mounting plate is with some circumstance and Time required, especially since the screwing up can only take place when the brackets are under the vehicle.

Es ist deshalb auch bekannt geworden, die Höhenverstellung der Aufnahmeteller durch einen oder zwei parallel angeordnete, vertikal verschwenkbare Hebel an ihrem Tragarm vorzunehmen. Diese Schwenkhebel können in unterschiedlichen Höhenpositionen arretiert werden und gestatten eine schnellere Höhenverstellung als die zuvor beschriebenen Gewindespindeln, die pro Umdrehung nur jeweils einen Gewindegang an Höhe gewinnen.It is therefore also known, the height adjustment of Shelf by one or two parallel, vertical pivotable lever to make their arm. These pivoting levers can be locked in different height positions and allow a faster height adjustment than the previously described threaded spindles, which win only one turn each turn in height.

Eine Kraftfahrzeug-Hebebühne mit einer Höhenverstelleinrichtung der Aufnahmeteller ist in der EP-A-0 300 142 offenbart.A motor vehicle lift with a height adjustment of the receiving plate is in EP-A-0 300 142 discloses.

Andererseits haben Untersuchungen der Anmelderin ergeben, dass die Verwendung solcher Schwenkhebel zu einem gewissen seitlichen Versatz der Aufnahmeteller führt. Dieser seitliche Versatz kann bei starker Höhenverstellung der Aufnahmeteller dazu führen, dass die Aufnahmeteller nicht mehr die gewünschten Stützpunkte an der Fahrzeug-Unterseite treffen.On the other hand, investigations by the applicant have shown that the Use such pivot lever to a certain lateral offset of Recording plate leads. This lateral offset can with strong height adjustment the receiving plate cause the receiving plates are no longer the meet desired support points on the vehicle underside.

Ausgehend von dieser Erkenntnis liegt der vorliegenden Erfindung die Aufgabe zugrunde, die Höhenverstellung der Aufnahmeteller relativ zu ihren Tragarmen einerseits rasch und bedienerfreundlich herbeizuführen, andererseits aber den bei der bekannten Schwenkhebel-Konstruktion auftretenden seitlichen Versatz ganz oder zumindest weitestgehend zu eliminieren. Dabei soll sich die erfindungsgemäße Konstruktion durch kostengünstigen und bedienerfreundlichen Aufbau auszeichnen.Based on this finding, the present invention has the object underlying, the height adjustment of the receiving plate relative to their support arms on the one hand to bring about rapid and user-friendly, but on the other hand the occurring in the known pivot lever construction lateral offset completely or at least largely eliminated. It should be the inventive design by inexpensive and distinguished user-friendly structure.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Höhenverstellung der Aufnahmeteller über jeweils zumindest zwei sich kreuzende, im Kreuzungspunkt drehbar verbundene, vertikal verschwenkbare Scherenhebel erfolgt und dass der Aufnahmeteller mit demjenigen Scherenhebel gelenkig verbunden ist, dessen unteres Ende bei der Höhenverstellung eine Horizontalverschiebung durchführt.This object is achieved in that the Height adjustment of the receiving plate over at least two each intersecting, pivotally connected in the crossing point, vertically pivotable Scissors takes place and that the receiving plate with that Scissors lever is hinged, whose lower end at the Height adjustment performs a horizontal displacement.

Hierdurch ergibt sich der Vorteil, dass die Höhenverstellung der Aufnahmeteller ebenso rasch wie bei den bekannten Schwenkhebeln erfolgt, dass aber im Gegensatz dazu der Aufnahmeteller bei der Höhenverstellung eine nahezu exakte Vertikalbewegung durchführt und somit zuverlässig den vorgeschriebenen Stützpunkt an der Fahrzeugunterseite trifft - gleichgültig, ob der Aufnahmeteller eine geringe oder eine starke Höhenverstellung durchführt. Dadurch zeichnet sich die erfindungsgemäße Hebebühne durch hohe Bedienungssicherheit und schnelle Rüstzeiten aus und eignet sich auch für solche Fahrzeuge, die mit besonders weit heruntergezogenen Seitenschwellern, Spoilern oder dergleichen ausgerüstet sind.This results in the advantage that the height adjustment of the receiving plate as quickly as in the known pivoting levers takes place, but that in In contrast, the receiving plate in the height adjustment a nearly performs exact vertical movement and thus reliably the prescribed base on the underside of the vehicle - regardless of whether the receiving plate performs a small or a strong height adjustment. As a result, the lift according to the invention is characterized by high Operation safety and fast set-up times and is also suitable for such vehicles with particularly long side sills, Spoilers or the like are equipped.

Zwar sind Hubvorrichtungen aus sich kreuzenden, vertikal verschwenkbaren Scherenhebeln an sich bekannt. Dabei erzeugen die Scherenhebel aber die gesamte Hubbewegung der Hebebühne an sich, wogegen es im vorliegenden Fall um eine im Zentimeter-Bereich liegende Verstellung von Zubehörteilen geht. Außerdem erfolgt die Verstellung nicht motorisch, sondern von Hand oder durch den Fuß.Although lifting devices are intersecting, vertically pivoting Scissor levers known per se. But the scissors levers produce the entire lifting movement of the lift itself, whereas it in the present Fall by a centimeter range adjustment of accessories goes. In addition, the adjustment is not motorized, but by hand or through the foot.

Die Arretierung der Scherenhebel in der gewünschten Höhenposition erfolgt zweckmäßig durch zumindest eine vertikal schwenkbare Sperrklinke, die formschlüssig in eine Zahnung an zumindest einem Scherenhebel eingreift und dessen Abwärtsbewegung blockiert. The locking of the scissors lever in the desired height position takes place expediently by at least one vertically pivotable pawl, the positively engages in a toothing on at least one scissor lever and its downward movement blocked.

Untersuchungen der Anmelderin haben ergeben, dass die zur Arretierung der Scherenhebel notwendigen Kräfte besonders hoch sind, wenn die Scherenhebel in der untersten oder zweituntersten Position arretiert werden sollen. Zu diesem Zweck wird in Weiterbildung der Erfindung vorgeschlagen, die Sperrklinke mit einem zusätzlichen Stützbereich zu versehen, der mit dem oberen Ende eines Scherenhebels korrespondiert und dadurch nicht so hohen Reaktionskräften ausgesetzt ist, wie das in die Zahnung eingreifende Ende der Sperrklinke. Es liegt dabei im Rahmen der Erfindung, die Scherenhebel in der ersten Höhenposition oberhalb ihrer unteren Ruhelage allein über den genannten zusätzlichen Stützbereich zu arretieren und die Zahnung erst für die weiter oben liegenden Höhenpositionen heranzuziehen.Investigations by the applicant have shown that the locking of the Scissors necessary forces are particularly high when the scissors levers in the lowest or second lowest position. To this Purpose is proposed in development of the invention, the pawl with to provide an additional support area coinciding with the upper end of a Scissor lever corresponds and thus not so high reaction forces exposed as the teeth engaging in the end of the pawl. It lies within the scope of the invention, the scissors lever in the first Height above its lower rest position alone above the above additional support to lock and the teeth only for the above lying height positions to use.

Ebenso liegt es im Rahmen der Erfindung, dass die Sperrklinke alternativ oder zusätzlich einen weiteren Stützbereich aufweist, der zur Auflage des Aufnahmetellers dient.It is also within the scope of the invention that the pawl alternatively or additionally has a further support area, which is used to support the Recording plate serves.

Zur Höhenverstellung des Aufnahmetellers empfiehlt es sich, einen seitlich angeordneten Betätigungshebel am unteren Bereich eines Scherenhebels, d.h., unterhalb des Kreuzungspunktes der beiden Scherenhebel, anzubringen. Dies führt dazu, dass ein Nachuntendrücken des Betätigungshebels das Hochfahren des Aufnahmetellers auslöst. Dies ist ergonomisch besonders günstig - gleichgültig, ob der Betätigungshebel mit der Hand oder mit dem Fuß verstellt wird. Die Bewegungsverhältnisse werden noch besser, wenn der Betätigungshebel an demjenigen Scherenhebel montiert wird, der bei der Höhenverstellung eine Horizontalverschiebung durchführt, und zwar eine Horizontalverschiebung zum freien Ende des Tragarmes hin.To adjust the height of the receiving plate, it is recommended that one side arranged actuating lever at the lower portion of a scissor lever, i. below the crossing point of the two scissors levers. This causes the pushing down of the operating lever of the receiving plate triggers. This is ergonomically particularly favorable - regardless of whether the operating lever is adjusted by hand or with the foot becomes. The movement conditions are even better when the Operating lever is mounted on that scissor lever, which in the Height adjustment performs a horizontal displacement, namely a Horizontal displacement towards the free end of the support arm.

Damit der Betätigungshebel nicht versehentlich mit der Sperrklinke verwechselt wird, empfiehlt es sich, beide Hebel in deutlich unterschiedlicher Länge vorzusehen, insbesondere den Betätigungshebel für die Hubbewegung deutlich länger zu machen als die Sperrklinke und ihn an der gegenüberliegenden Seite der Sperrklinke anzuordnen.So that the operating lever is not mistakenly mistaken for the pawl It is recommended, both levers in clearly different lengths provide, in particular the operating lever for the lifting movement significantly to make longer than the pawl and him on the opposite side to arrange the pawl.

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

  • Fig. 1 eine Schrägansicht der erfindungsgemäßen Hebebühne;
  • Fig.2 bis Fig. 5 jeweils eine vergrößerte Seitenansicht der Scherenhebel mit ihrem Aufnahmeteller in unterschiedlichen Höhenpositionen;
  • Fig. 6 einen Horizontalschnitt durch die Scherenhebel;
  • Fig. 7 einen anderen Horizontalabschnitt durch die Scherenhebel
  • Fig. 8 eine Seitenansicht mit dem Betätigungshebel und
  • Fig. 9 die gegenüberliegende Seitenansicht mit der Sperrklinke.
  • Further features and advantages of the invention will become apparent from the following description of an embodiment and from the drawing; shows
  • Fig. 1 is an oblique view of the lift according to the invention;
  • FIGS. 2 to 5 each show an enlarged side view of the scissors levers with their receiving plates in different height positions;
  • 6 shows a horizontal section through the scissor levers;
  • Fig. 7 shows another horizontal section through the scissor levers
  • Fig. 8 is a side view with the actuating lever and
  • Fig. 9, the opposite side view with the pawl.
  • Im Ausführungsbeispiel handelt es sich um eine oberirdische 2-Säulen-Hebebühne, wobei in jeder Säule 1, 2 ein Hubelement 1a bzw. 2a vertikal verfahrbar gelagert ist. Dieses Hubelement 1a, 2a wird in an sich bekannter Weise hydraulisch oder durch eine Gewindespindel oder auf andere Weise angetrieben. Es trägt jeweils über Schwenklager 1b, 1c bzw. 2b, 2c zwei horizontal verschwenkbare Tragarme 3, 4 bzw. 5, 6, die an ihren freien Enden höhenverstellbare Tragteller 7, 8 bzw. 9, 10 aufweisen und mit diesen Tragtellern an den herstellerseitig vorgeschriebenen Stützpunkten an der Fahrzeugunterseite angreifen.In the exemplary embodiment is an above-ground 2-post lift, wherein in each column 1, 2, a lifting element 1a and 2a vertically is movably mounted. This lifting element 1a, 2a is known per se Hydraulic way or by a threaded spindle or otherwise driven. It carries two pivot bearings 1b, 1c and 2b, 2c horizontally pivotable support arms 3, 4 and 5, 6, at their free ends height-adjustable support plates 7, 8 and 9, 10 and have with them Tragtellern at the manufacturer's prescribed bases on the Attack vehicle underside.

    Wesentlich ist nun einerseits, dass die Tragarme 3 bis 6 jeweils in zwei Tragarmstücke 13, 23 bzw. 14, 24 bzw. 15, 25 bzw. 16, 26 unterteilt sind und diese Tragarmstücke jeweils untereinander durch ein zentrales Schwenklager 33 bzw. 34 bzw. 35 bzw. 36 miteinander verbunden sind. Dieses zentrale Schwenklager hat eine vertikale Achse, ebenso wie das Schwenklager 1b, 1c bzw. 2b, 2c, mit dem das erste Tragarmstück 13, 14, 15, 16 am Hubelement 1a bzw. 2a gelagert ist. Dadurch können die Tragarmstücke ein und desselben Tragarmes jeweils scherenartig relativ zueinander in Horizontalrichtung verschwenkt werden.It is essential on the one hand, that the support arms 3 to 6 each in two Tragarmstücke 13, 23 and 14, 24 and 15, 25 and 16, 26 are divided and These Tragarmstücke each with each other by a central pivot bearing 33rd or 34 or 35 or 36 are connected to each other. This central Swivel bearing has a vertical axis, as well as the pivot bearing 1b, 1c or 2b, 2c, with which the first Tragarmstück 13, 14, 15, 16 on the lifting element 1a or 2a is stored. This allows the Tragarmstücke one and the same Support arm each scissor-like relative to each other in the horizontal direction be pivoted.

    Die Schwenklagerung 1b, 1c bzw. 2b, 2c am jeweiligen Hubelement 1a bzw. 2a ist so ausgebildet, dass die daran angelenkten Tragarmstücke 13, 14, 15, 16 soweit zurückgeschwenkt werden können, dass sie, wie Figur 1 und 2 zeigt, vom Fahrzeug weggerichtet sind. Dadurch wird der Bereich, der mit den freien Enden der Tragarme angefahren werden kann, wesentlich erhöht. Dieser Bereich ist in Figur 1 eingezeichnet, wobei zusätzlich berücksichtigt ist, dass die äußeren Tragarmstücke 23, 24, 25, 26 jeweils noch eine teleskopierbare Verlängerung aufweisen. Man erkennt, dass hier ein außerordentlich breites Fahrzeug-Spektrum abgedeckt werden kann, von der Mini-Klasse bis zur Sprinter-Klasse.The pivot bearing 1b, 1c and 2b, 2c on the respective lifting element 1a and 2a is formed so that the hinged thereto support arm pieces 13, 14, 15, 16 as far as can be swung back that, as shown in Figures 1 and 2, from Vehicle are directed away. This will be the area that ends with the free ends the support arms can be approached, substantially increased. This area is in Figure 1 shown, which is additionally taken into account that the outer Tragarmstücke 23, 24, 25, 26 each still a telescopic extension exhibit. One recognizes that here an extraordinarily broad vehicle spectrum can be covered, from the mini-class to the Sprinter class.

    Wesentlich ist andererseits die spezielle Höhenverstellung der Aufnahmeteller, wie sie in den Figuren 2 bis 9 dargestellt ist.On the other hand essential is the special height adjustment of the receiving plates, as shown in Figures 2 to 9.

    In den Figuren 2 bis 5 ist jeweils das freie Ende eines Tragarmes, beispielsweise des Tragarmes 4 mit seinem Aufnahmeteller 8 dargestellt, jedoch in unterschiedlichen Höhenpositionen.FIGS. 2 to 5 each show the free end of a support arm, For example, the support arm 4 shown with its receiving plate 8, however in different height positions.

    Wie man sieht, ruht der Aufnahmeteller 8 auf zwei sich kreuzenden Scherenhebeln 41 und 42, wobei sich hinter den genannten Scherenhebeln ein weiteres Paar gleichartiger Scherenhebel befindet, so dass der Aufnahmeteller 8 auf insgesamt vier Scherenhebeln liegt.As you can see, the receiving plate 8 rests on two intersecting Scissor levers 41 and 42, wherein behind said scissor levers a another pair of similar scissor lever is located so that the receiving plate 8 on a total of four scissor levers.

    Der Scherenhebel 42 ist an seinem unteren Ende 42a gelenkig am Ende des Tragarmes gelagert und in seinem mittleren Bereich über ein Scherengelenk 43 mit dem anderen Scherenhebel 41 verbunden, so dass beide Scherenhebel vertikal schwenkbar sind. Das untere Ende des Scherenhebels 41, das vom Ende des Tragarmes 4 weggerichtet ist, gleitet bei dieser Schwenkbewegung auf einer entsprechenden Fläche des Tragarmes 4 oder ist über einen Querstift 41a in einem horizontalen Führungsschlitz in einem vertikalen Wandteil des Tragarmes gelagert.The scissor lever 42 is hinged at its lower end 42a at the end of Support arm mounted and in its central region via a scissors joint 43rd connected to the other scissor lever 41, so that both scissor levers are vertically pivotable. The lower end of the scissors lever 41, the from End of the support arm 4 is directed away, slides in this pivotal movement on a corresponding surface of the support arm 4 or is over a transverse pin 41a in a horizontal guide slot in a vertical wall portion of Support arm stored.

    Der Aufnahmeteller 8 ist an seinem außenliegenden Ende über ein Schwenklager 8a mit dem Scherenhebel 41 verbunden, wogegen er an seinem gegenüberliegenden, inneren Endbereich lose am Scherenhebel 42 und/oder an einer Sperrklinke 44 aufliegt. Soweit in einigen Figuren ein Spalt zwischen Aufnahmeteller 8 und Scherenhebel 42 vorliegt, beruht dies auf einer Zeichnungsungenauigkeit. The receiving plate 8 is at its outer end via a Swivel bearing 8a connected to the scissor lever 41, whereas he at his opposite, inner end region loose on the scissor lever 42 and / or on a pawl 44 rests. As far as in some figures a gap between Receiving plate 8 and scissor lever 42 is present, this is based on a Drawing inaccuracy.

    Die Sperrklinke 44 hat die Aufgabe, die beiden Scherenhebel 41 und 42 beziehungsweise den Aufnahmeteller 8 in der gewünschten Höhenposition zu arretieren. Dazu ist sie an ihrem einen Ende am Scherenhebel 42 oder am Tragarm schwenkbar gelagert, wogegen ihr anderes Ende in eine Zahnung 41b des Scherenhebels 41 eingreift. Auf diese Weise bildet die Sperrklinke 44 einen verstellbaren Anschlag zwischen den beiden Scherenhebeln 41 und 42, wobei dieser Anschlag aufgrund der Zahnung 41b in mehreren aufeinanderfolgenden Schwenkpositionen der Scherenhebel und damit unterschiedlichen Höhenpositionen des Aufnahmetellers 8 wirksam ist.The pawl 44 has the task, the two scissor levers 41 and 42nd or the receiving plate 8 in the desired height position lock. For this she is at her one end on the scissor lever 42 or on Support arm mounted pivotally, whereas their other end in a toothing 41b the scissor lever 41 engages. In this way, the pawl 44 forms a adjustable stop between the two scissor levers 41 and 42, wherein this stop due to the teeth 41b in several successive Swivel positions of the scissor lever and thus different Height positions of the receiving plate 8 is effective.

    Wie man in Figur 2 außerdem erkennt, hat die Sperrklinke 44 einen zusätzlichen Stützbereich 44a. Auf diesem Stützbereich 44a kommt der Aufnahmeteller zu liegen, wenn er aus der unteren Ruheposition in die nächsthöhere Position verstellt wird. Dadurch verringern sich die vom Spreizhebel 44 und vom Scherengelenk 43 aufzunehmenden Reaktionskräfte, die ansonsten bei fast zusammengefahrenen Scherenhebeln sehr hoch wären.As can also be seen in Figure 2, the pawl 44 has an additional Support area 44a. On this support portion 44a of the receiving plate comes to lie when moving from the lower rest position to the next higher position is adjusted. This reduces the spreading of the lever 44 and the Scherengelenk 43 to be absorbed reaction forces, otherwise at almost Collapsed scissor levers would be very high.

    Figur 3 zeigt den Aufnahmeteller in der nächsthöheren Position. Dabei wird eine weitere Stützfläche 44b der Sperrklinke wirksam, in dem sich der Scherenhebel 42 mit einer Nase 42b am oberen Endbereich auf dieser Stützfläche 44b abstützt.FIG. 3 shows the receiving plate in the next higher position. There will be a another support surface 44b of the pawl effectively, in which the scissor lever 42 with a nose 42b at the upper end portion on this support surface 44b supported.

    Erst bei weiterer Höhenverstellung des Aufnahmetellers, wie sie in den Figuren 4 und 5 gezeigt ist, stützt sich der Aufnahmeteller allein an seinen Scherenhebeln 41 und 42 ab. Man sieht dabei auch, dass durch die spezielle Kontur am oberen Rand des Scherenhebels 42 immer eine etwa horizontale Position des Aufnahmetellers 8 - unabhängig von dessen Höhenposition - gewährleistet ist.Only with further height adjustment of the receiving plate, as shown in the figures 4 and 5, the receiving plate is based solely on its Scissor levers 41 and 42 from. You can also see that by the special Contour at the top of the scissor lever 42 always an approximately horizontal Position of the receiving plate 8 - regardless of its height position - is guaranteed.

    Der Horizontalschnitt gemäß Figur 6 verdeutlicht, dass parallel mit Abstand zu den Scherenhebeln 41 und 42 gleichartige Scherenhebel 41' und 42' am Tragarm gelagert sind, der Aufnahmeteller also von vier Scherenhebeln gehalten wird und wie deren Betätigung und Arretierung erfolgt. Dazu ist an den horizontal verschiebbaren unteren Enden 41a der Scherenhebel 41 und 41' ein gemeinsamer Betätigungshebel 45 fest montiert. Dieser Betätigungshebel 45 steht etwas vom Tragarm 4 ab und läuft in Richtung zur Hubsäule 1, so dass er auch bei unter das Fahrzeug verschwenkten Tragarmen noch gut von außen zugänglich ist. Ein nach unten Schwenken des Betätigungshebels 45 hebt die Scherenhebel 41 aus ihrer flachen unteren Ruheposition, bei der der Aufnahmeteller 8 etwa mit der Oberseite seines Tragarmes fluchtet, heraus bis zu gewünschten Höhenposition.The horizontal section according to FIG. 6 clarifies that parallel with distance to the scissor levers 41 and 42 similar scissor levers 41 'and 42' on Support arm are stored, the receiving plate so of four scissor levers is held and how their operation and locking takes place. This is to the horizontally displaceable lower ends 41a of the scissors levers 41 and 41 ' common operating lever 45 firmly mounted. This operating lever 45 stands slightly off the support arm 4 and runs in the direction of the lifting column 1, so that he even with under the vehicle pivoted support arms still good from the outside is accessible. A downward pivoting of the operating lever 45 lifts the Scissor lever 41 from its flat lower rest position, in which the Receiving plate 8 approximately with the top of its support arm is aligned, out to to the desired height position.

    Die Arretierung der Scherenhebel in der gewünschten Höhenposition wird durch Figur 7 verdeutlicht. Man erkennt dort die beiden Sperrklinken 44 und 44', die bei 44c um eine Horizontalachse schwenkbar gelagert sind und dort mit einem entsprechenden Schwenkhebel 46 verbunden sind. Dieser Schwenkhebel 46 steht ebenfalls vom Tragarm etwas ab, vorzugsweise aber auf der gegenüberliegenden Seite wie der Betätigungshebel 45 für die Höhenverstellung.The locking of the scissors lever in the desired height position is through Figure 7 illustrates. One recognizes there the two pawls 44 and 44 ', the are mounted pivotably at 44c about a horizontal axis and there with a corresponding pivot lever 46 are connected. This pivot lever 46 is also slightly off the support arm, but preferably on the opposite side as the operating lever 45 for the Height adjustment.

    Wird der Hebel 46 nach unten geschwenkt, so lösen sich die beiden Sperrklinken 44 und 44' aus ihrem formschlüssigen Eingriff mit den Scherenhebeln 41 und 41', so dass die Scherenhebel durch ihr Eigengewicht in die untere Ruheposition zurückfallen.If the lever 46 is pivoted down, the two solve Pawls 44 and 44 'from their positive engagement with the Scissor levers 41 and 41 ', so that the scissors levers in their own weight the lower rest position fall back.

    Die Figuren 8 und 9 zeigen die beiden Seitenansichten, wo man einmal den Betätigungshebel 45 für die Höhenverstellung, das andere Mal den Hebel 46 zum Lösen der Sperrklinken 44 und 44' erkennt.Figures 8 and 9 show the two side views, where you once the Operating lever 45 for the height adjustment, the other time the lever 46th for releasing the pawls 44 and 44 'recognizes.

    Im Ausführungsbeispiel fallen die Sperrklinken 44 und 44' jeweils durch ihr Eigengewicht in die Arretierstellung. Es liegt aber selbstverständlich auch im Rahmen der Erfindung, eine zusätzliche Federanpressung vorzusehen.In the exemplary embodiment, the pawls fall 44 and 44 'each through her Dead weight in the locked position. It is, of course, also in the Frame of the invention to provide an additional spring contact.

    Zusammenfassend zeichnet sich die Erfindung dadurch aus, dass die Aufnahmeteller bei einfachster Betätigung relativ große Stellbewegungen durchführen können und dabei mehr oder weniger exakt in Vertikalrichtung verfahren, so dass die vorgeschriebenen Stützpunkte an der Fahrzeugunterseite zuverlässig getroffen werden.In summary, the invention is characterized in that the Recording plates with the simplest operation relatively large positioning movements can perform and more or less exactly in the vertical direction procedure, so that the prescribed bases on the vehicle underside be taken reliably.

    Claims (9)

    1. Lifting platform for motor vehicles with supporting arms (3, 4, 5, 6) which are pivotable and usually are also adjustable in length and which are mounted on both sides of the vehicle to be lifted on lifting elements (1a, 2a), the free ends of the supporting arms bearing seats (8, 9, 10) which are adjustable in height by way of pivot levers, can be moved at the front and the rear to four support points - which usually lie in the region between the axles - of the motor vehicle and can be locked in different vertical positions, characterised in that the height adjustment of the seating plates (8, 9, 10) takes place by way of in each case at least two intersecting scissor levers (41, 42) which are rotatably connected at the point of intersection (43) and are vertically pivotable, and that the seating plate (8, 9, 10) is in each case connected in an articulated manner to the particular scissor lever (41) of which the lower end carries out a horizontal displacement during the height adjustment.
    2. Lifting platform as claimed in Claim 1, characterised in that the locking of the scissor levers (41, 42) takes place by at least one vertically pivotable ratchet (44) which engages in a toothing (41b) on at least one scissor lever (41).
    3. Lifting platform as claimed in Claim 2, characterised in that the ratchet (44) has an additional support region (44a) for one of the scissor levers and/or the seating plate (8) - particularly in a lower vertical position.
    4. Lifting platform as claimed in Claim 2 or 3, characterised in that the ratchet has a further support region (44b) for supporting a scissor lever (42) and/or the seating plate (8) - particularly in a lower vertical position.
    5. Lifting platform as claimed in Claim 1, characterised in that an actuating lever (45) is mounted on the lower region of a scissor lever (41) for height adjustment of the scissor lever.
    6. Lifting platform as claimed in Claim 5, characterised in that the actuating lever (45) is mounted on the particular scissor lever (44) which carries out a horizontal displacement during the height adjustment.
    7. Lifting platform as claimed in Claims 2 and 5, characterised in that the actuating lever (45) is disposed on the opposite side of the ratchet (46).
    8. Lifting platform as claimed in Claim 1, characterised in that the supporting arm has on its free end an approximately horizontal slot in which the lower end (41a) of one scissor lever (41) is displaceably guided.
    9. Lifting platform as claimed in Claim 1, characterised in that the supporting arms are divided in each case into two smaller supporting arm parts (13, 23; 14, 24; 15, 25; 16, 26) which are each connected to one another by a pivot bearing (33, 34, 35, 36) with a vertical axis.
    EP03010040A 2002-05-14 2003-05-02 Vehicle lift with carrying arms Expired - Lifetime EP1362823B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE20207646U DE20207646U1 (en) 2002-05-14 2002-05-14 Lift for motor vehicles
    DE20207646U 2002-05-14

    Publications (2)

    Publication Number Publication Date
    EP1362823A1 EP1362823A1 (en) 2003-11-19
    EP1362823B1 true EP1362823B1 (en) 2005-03-02

    Family

    ID=7971202

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03010040A Expired - Lifetime EP1362823B1 (en) 2002-05-14 2003-05-02 Vehicle lift with carrying arms

    Country Status (4)

    Country Link
    EP (1) EP1362823B1 (en)
    AT (1) ATE289977T1 (en)
    DE (2) DE20207646U1 (en)
    ES (1) ES2239282T3 (en)

    Families Citing this family (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN105236301A (en) * 2015-11-03 2016-01-13 赛埃孚汽车保修设备(太仓)有限公司 Collapsible lifter supporting arm mechanism
    DE102017108069A1 (en) * 2017-04-13 2018-10-18 Gerhard Finkbeiner hydraulic ramp
    CN110361209B (en) * 2019-06-10 2021-11-19 乐歌人体工学科技股份有限公司 Balance adjusting method for lifting platform
    CN112658641B (en) * 2020-12-25 2022-05-13 湖南中联重科应急装备有限公司 Turnover device, turnover equipment and turnover method of to-be-turned piece
    DE202022002928U1 (en) 2022-08-29 2024-03-05 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Mounting device for height-adjustable mounting of a support plate
    DE102022208942A1 (en) 2022-08-29 2024-02-29 Maha Maschinenbau Haldenwang Gmbh & Co. Kg RECEIVING DEVICE FOR VARIOUS HEIGHT RECORDING OF A SUPPORT PLATE

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE7217134U (en) 1973-01-25 Becker J & Soehne Maschinenfabrik Adjustable support plate on telescopic swivel arms of all kinds of lifting platforms
    FR1112252A (en) 1954-10-06 1956-03-12 Tecalemit Adjustable gripping device for vehicle lift
    FR1159013A (en) 1956-10-08 1958-06-23 Further development of lifting devices, especially for vehicles
    DE1742168U (en) 1957-01-30 1957-03-28 Schmidt Paul LIFTING DEVICE FOR VEHICLE REPAIR PITS.
    US3536162A (en) * 1968-01-25 1970-10-27 Autoquip Corp "u" frame hydraulic vehicle lift
    FR2429742A1 (en) * 1978-06-29 1980-01-25 Ramon Edmond Automobile jack with wheeled base - has linkage which converts horizontal movement of hydraulic cylinder to vertical movement of support pad
    GB2144712A (en) * 1983-08-09 1985-03-13 Michael Hung Safety device for jacks
    DE8709940U1 (en) 1987-07-20 1987-10-01 Zippo Gesellschaft für Hebetechnik mbH, 7601 Willstätt Vehicle lifting platform with support arms
    DE3723956A1 (en) * 1987-07-20 1989-02-02 Zippo Hebetechnik Gmbh MOTOR VEHICLE LIFT WITH CARRIERS

    Also Published As

    Publication number Publication date
    ATE289977T1 (en) 2005-03-15
    DE50300327D1 (en) 2005-04-07
    EP1362823A1 (en) 2003-11-19
    DE20207646U1 (en) 2002-08-14
    ES2239282T3 (en) 2005-09-16

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