WO2023179880A1 - Ensemble tables élévatrices - Google Patents

Ensemble tables élévatrices Download PDF

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Publication number
WO2023179880A1
WO2023179880A1 PCT/EP2022/058012 EP2022058012W WO2023179880A1 WO 2023179880 A1 WO2023179880 A1 WO 2023179880A1 EP 2022058012 W EP2022058012 W EP 2022058012W WO 2023179880 A1 WO2023179880 A1 WO 2023179880A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting table
scissor
arrangement
scissor lifting
tables
Prior art date
Application number
PCT/EP2022/058012
Other languages
German (de)
English (en)
Inventor
Marco HANKE
Original Assignee
Flexlift Hubgeräte Gmbh
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 Flexlift Hubgeräte Gmbh filed Critical Flexlift Hubgeräte Gmbh
Priority to PCT/EP2022/058012 priority Critical patent/WO2023179880A1/fr
Publication of WO2023179880A1 publication Critical patent/WO2023179880A1/fr

Links

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
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0658—Multiple scissor linkages horizontally arranged
    • 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
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions

Definitions

  • the invention relates to a lifting table arrangement, which comprises a base frame and a first scissor lifting table arranged thereon and at least one second scissor lifting table, with features according to claim 1.
  • Scissor lift tables for lifting and lowering loads have been known for a long time.
  • the basic principle is that a platform carrying the load is raised or lowered by means of two scissors arranged laterally parallel to one another by opening and closing the scissor legs.
  • the ends of the scissors are each arranged with bearings on the base plate or on the platform.
  • fixed bearings i.e. bearings fixed to the scissors and platform or base plate, are arranged on one side, and loose bearings are arranged on the other side, which can be moved relative to the platform or base plate.
  • the object of the invention is now to propose a lifting table arrangement that simplifies working on such large objects.
  • the lifting table arrangement comprises a base frame and a first scissor lifting table arranged thereon and at least one second scissor lifting table, each scissor lifting table comprising scissors that can be pivoted relative to one another via a central bearing, which are coupled via corresponding fixed bearings to the base frame on the one hand and to an upper frame of the respective scissor lifting table are.
  • the scissor lifting tables can be moved from a retracted position into an extended position via at least one drive.
  • the lifting table arrangement is set up in such a way that the at least one second scissor lifting table moves between the retracted and the extended position when the first scissor lifting table moves at least in sections.
  • the lifting table arrangement has at least two lifting tables, with a main lifting table, which carries the work object, for example, controlling the movement of the other scissor lift tables.
  • a main lifting table which carries the work object, for example, controlling the movement of the other scissor lift tables.
  • the lifting table arrangement is designed so that the movement of the first and at least one second scissor lifting table, in particular via a traction means, preferably a cable pull, or traction-pushing means, preferably a push rod, is mechanically coupled or associated by synchronization Drives are coordinated with each other.
  • the coupling between the first lifting table and the at least one second lifting table can be done classically, i.e. mechanically, using a traction device or a traction-pushing device.
  • the drive of the second lifting table(s) can also be controlled electronically by the drive and the movement of the first lifting table.
  • an at least partial movement of the first scissor lifting table in a direction between the extended position and the retracted position causes an at least partial movement of the at least one second scissor lifting table in the same or the opposite direction.
  • additional scissor lift tables in such a way that the platform is in the rest position on the level on which the fitter or fitters are moving. When the main lifting table is then lowered below a predefined height, the lifting tables are raised so that a fitter can also work well in the upper area of the object to be processed.
  • an accessible storage area is arranged on the base frame of the lifting table arrangement.
  • Such an accessible storage area does not have to be located directly on the floor on which the lifting table stands. This means that the accessible parking space can be set up above annoying obstacles.
  • the upper frame of the at least one second scissor lift table in particular the upper surface of the upper frame, is sunk into the base frame in the retracted position of the at least one second scissor lift table in such a way that the upper - the frame springs back relative to the footprint in the direction of gravity.
  • the lifting table arrangement advantageously has a plurality of second scissor lifting tables.
  • second lifting tables can be arranged at different points around the first lifting table, which, coupled to the first lifting table, move synchronously or carry out various movements that are adapted to the respective work situation.
  • the lifting table arrangement comprises four second scissor lifting tables, between which the first scissor lifting table is arranged.
  • second lifting tables can be arranged where the wheels are mounted on the automobile, which also lower when the first lifting table is lowered after the lifting height has fallen below a certain level, thus releasing a space in which the wheels can be moved below the accessible parking space can be lowered in order to be able to work better in the upper area of the vehicle.
  • the lifting table arrangement is designed as a push skid.
  • the object to be manufactured can be moved through the production line on the first lifting table without the object to be manufactured having to be lifted off the lifting table for further transport after the completion of a production step.
  • the object to be manufactured can remain on the lifting table arrangement while the production section is running through.
  • the scissor lift tables have floating bearings.
  • One of the floating bearings of the at least one second lifting table is not arranged at the end on the scissors, but between a fixed bearing and the central bearing of the legs. This floating bearing is also called a coupling bearing.
  • At least one pair of scissors, in particular their coupling bearing, of the at least one second scissor lifting table is mechanically coupled to at least one pair of scissors, in particular their floating bearing, of the first scissor lifting table.
  • the second lifting table can be positively guided.
  • the coupling bearing of the at least one second scissor lifting table is guided in or on a control section coupled to the first scissor lifting table.
  • the control section is moved, which in turn guides the second scissor lifting table via the coupling bearing.
  • the control section is a link or control curve.
  • a link or a control cam helps with the positive guidance of the at least one second lifting table.
  • Figure 1 shows a perspective view of a lifting table arrangement according to the invention
  • Figure 2 - shows the lifting table arrangement of Figure 1 in a different working position
  • Figure 3 shows a perspective view of another lifting table arrangement cut lengthways in an almost extended position
  • Figure 4 shows the lifting table arrangement of Figure 3 in a middle position
  • Figure 5 shows the lifting table arrangement of Figure 3 in a retracted position
  • Figure 6 shows the sectional view of another lifting table arrangement in an almost extended position
  • Figure 7 shows the lifting table arrangement of Figure 6 in a middle position
  • Figure 8 - shows the lifting table arrangement of Figure 6 in a retracted position.
  • FIG. 1 shows a lifting table arrangement 1 according to the invention, which comprises a base frame 19, 29 and a centrally arranged first scissor lifting table 10 and four second scissor lifting tables 20.
  • an accessible storage area 2 is arranged so that the upper frame 21 of the four second scissor lift tables 20 form a level with the accessible footprint 2.
  • fitters can work on an object that is placed on the first scissor lift table 10 without the second scissor lift tables 20 forming an obstacle and thus a possible tripping point.
  • the upper frame 11 of the first scissor lift table 10 is also at the height of the accessible footprint 2.
  • the mechanics of the scissor lift tables 10, 21, which will be discussed in more detail below, and the drive 7 are located below the accessible footprint 2 and are therefore disruptive a fitter when processing an object that is located on the first scissor lift table 10.
  • a lifting table arrangement 1 is used, for example, for the assembly of a larger motor vehicle, it may happen that a fitter who is on the accessible parking space 2 cannot work well in the upper area of the motor vehicle because the assembly point is not ergonomically favorable, namely is too high, even though the upper frame 11 is located in the level of the accessible storage area 2 and cannot be lowered further, since, for example, the axles with the tire holders are already mounted and the tire holders touch the upper frames 21 of the second scissor lift tables 20 .
  • the four second scissor lifting tables 20 are coupled to the first scissor lifting table 10 in such a way that if the lifting height falls below a predetermined height, the four second scissor lifting tables 20 are lowered, as shown in FIG. 2.
  • the tire holders can now be immersed in the accessible parking space 2 when the motor vehicle is lowered further with the first scissor lift table 10. This means that even a higher assembly point can be moved into an ergonomically favorable position for the fitter.
  • the vehicle can be used with the The first scissor lift table 10 is raised, with the second scissor lift tables 20 also being raised again and again forming a level with the accessible storage area 2.
  • Figures 3 to 5 show, in perspective, a further lifting table arrangement 1 cut through lengthways in various positions.
  • Fig. 3 shows on the left side a base frame 19 on which a scissor lifting table 10 is arranged.
  • the section through the lifting table arrangement 1 takes place in the longitudinal direction, namely from the right rear to the left front, so that only the rear half of the lifting table arrangement 1 is shown.
  • the upper frame 11 of the first scissor lifting table 10 is arranged on the scissors 12, 13 via a fixed bearing 15 and a floating bearing 17.
  • the legs 12, 13 are connected to one another via a central bearing 14 and thus form the scissors 12, 13, which are connected to the base frame 19 via a fixed bearing 16 and a floating bearing 18.
  • the first scissor lift table 10 is in the upper end position or at least close to the upper end position.
  • the drive of the first scissor lift table is indicated by the motor 7, without any further detailed design.
  • This configuration is arbitrary; it can be a belt drive in which the axle 8 is pulled between the lower floating bearings 18 to lift the upper frame 11 in the direction of the motor 7; it can also be a spindle drive or another drive known to those skilled in the art.
  • the scissors 22, 23, whose legs 22 and 23 are connected via the central bearing 24, are arranged with the fixed bearing 26 and the floating bearing 28 on the base frame 29, and the scissors 22, 23 are connected via the fixed bearing 25 and the floating bearing 27 connected to the upper frame 21.
  • the two scissor lifting tables 10, 20 are coupled by a coupling element 3, which is arranged on the connecting axis 8 of the two lower floating bearings 18 of the first scissor lifting table 10 and extends largely horizontally into the area under the upper frame 21 of the second scissor lifting table 20.
  • the coupling element 3 is provided with a control section 4, which in the exemplary embodiment shown is designed in the form of a simple link;
  • the control section 4 is composed of a control section 4a which thickens the coupling element 3 upwards and then a control section 4b which continues the thickening of the coupling element 3.
  • the top of the coupling element 3 runs at a height starting from the left, in the control section 4a the surface shows a rising ramp, in the control section 4b the surface runs horizontally again.
  • the arrangement point of the axle on the leg 23 lies between the fixed bearing 26 and the central bearing 24.
  • This lifting table arrangement 1 is shown with the first scissor lifting table 10 in the extended or almost extended state.
  • the coupling element 3 is positioned so that the coupling bearing 23a comes to rest on the raised control section 4b and so the second scissor lifting table 20 is also in the extended position . If the first scissor lifting table 10 is now lowered, whereby the floating bearing 18 moves in the direction P, the coupling element 3 with the control section 4 also moves in the direction P. At the beginning of the downward movement of the upper frame 11 of the first scissor lifting table 10, the height of the second scissor lift table 20 is not changed since the coupling bearing 23a moves along the surface of the horizontal control section 4b.
  • the second scissor lift table 20 When the coupling element 3 has moved with its control section 4 under the coupling bearing 23a, so that the coupling bearing 23a leaves or has left the control section 4a, as shown in FIG. 5, the second scissor lift table 20 has reached its lower position, because when the first scissor lifting table 10 is lowered further, the coupling bearing 23a moves again on a horizontal right surface of the coupling element 3 and does not change its height.
  • Figures 6 to 8 show the sectional view of another lifting table arrangement in different positions.
  • the reference numbers are identical and do not all have to be explained again.
  • an accessible storage area 2 is arranged at height hs.
  • FIG. 6 shows the first scissor lift table 10 in the extended or almost extended position.
  • the second scissor lift table 20 is also extended, so that the upper side h ⁇ of the upper frame 21 of the second scissor lift table 20 is at the height hs of the accessible storage area 2 and thus forms a flat surface with it.
  • the coupling element 3 with its control section 4 is also moved to the right.
  • the second scissor lifting table 20 remains stationary.
  • Fig. 7 shows this lifting table arrangement 1, in which the first scissor lifting table 10 has lowered itself so far that the coupling element 3 has moved so far below the second scissor lifting table 20 that the coupling bearing 23a has reached the sloping control section 4a.
  • the coupling bearing 23a lowers as the upper frame is lowered further 11 of the first scissor lifting table 10 also lowers, so that the surface hi of the upper frame 21 of the second scissor lifting table 20 also lowers and so a depression is created in the plane of the accessible storage area 2.
  • the floating bearing 18 of the first scissor lift table 10 is pulled to the left (in the figure) and pulls the coupling element 3 arranged on the control axis 8 under the second scissor lift table 20 also to the left.
  • the coupling bearing 23a remains in position because the upper surface of the coupling element 3 is arranged horizontally.
  • the coupling bearing 23a is raised and thus the second lifting table as well, until the upper frame 21 forms a level again with the accessible footprint 2.
  • the flat control section 4b is pulled along under the coupling bearing 23a and no longer changes the height of the second scissor lifting table 20 as the upper frame 11 of the first scissor lifting table 10 is raised further.
  • the examples shown in the figures show similar movements of the first and second scissor lifting tables 10, 20. However, it is also possible for the movements to be in opposite directions, for example when the first scissor lifting table 10 is lowered, the second scissor lifting table 20 is raised. It is also possible to initiate a more complex movement of the second scissor lift table 20 by designing the control section 4. It is also possible to use the coupling element 3 to move a control disk with which the coupling bearing is raised or lowered.
  • an inventive lifting table arrangement 1 is also not limited to a specific branch of industry, because motor vehicle assembly is mentioned in the examples.
  • An inventive lifting table arrangement 1 can be used anywhere where a coupling a first scissor lift table 10 with at least a second scissor lift table 20 makes sense.

Landscapes

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

Abstract

L'invention concerne un ensemble tables élévatrices (1) comprenant un cadre de base (19, 29) et une première table élévatrice à ciseaux (10) située sur ce dernier. L'ensemble tables élévatrices (1) comprend également au moins une seconde table élévatrice à ciseaux (20), chaque table élévatrice à ciseaux comprenant des structures de type ciseaux (12, 13 ; 22, 23) qui peuvent pivoter l'une par rapport à l'autre autour d'un palier central (14, 24). Les structures de type ciseaux (12, 13 ; 22, 23) sont accouplées par l'intermédiaire de paliers fixes correspondants (16, 15 ; 26, 25) et au cadre de base (19, 29) d'un côté et au cadre supérieur (11, 21) de la table élévatrice à ciseaux (10, 20). Les tables élévatrices à ciseaux (10, 20) peuvent être déplacées d'une position rétractée à une position déployée au moyen d'au moins un entraînement (7). L'ensemble tables élévatrices est conçu de sorte que ladite seconde table élévatrice à ciseaux (20) se déplace entre la position rétractée et la position déployée lorsque la première table élévatrice à ciseaux (10) se déplace au moins par segments.
PCT/EP2022/058012 2022-03-25 2022-03-25 Ensemble tables élévatrices WO2023179880A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2022/058012 WO2023179880A1 (fr) 2022-03-25 2022-03-25 Ensemble tables élévatrices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2022/058012 WO2023179880A1 (fr) 2022-03-25 2022-03-25 Ensemble tables élévatrices

Publications (1)

Publication Number Publication Date
WO2023179880A1 true WO2023179880A1 (fr) 2023-09-28

Family

ID=81386735

Family Applications (1)

Application Number Title Priority Date Filing Date
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WO (1) WO2023179880A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221729A (ja) * 1982-06-15 1983-12-23 Shinko Electric Co Ltd 荷役作業車両の高さ調整装置
US4573663A (en) * 1983-05-20 1986-03-04 Hans Nussbaum Lifting device, especially elevating platform for motor vehicles
EP0364319A1 (fr) * 1988-10-11 1990-04-18 Bennes Marrel Appareil de chargement/déchargement de frêt aéroportuaire à régulation automatique de niveau
DE9005566U1 (de) 1990-05-16 1990-07-19 Heinrichs, Peter, 6507 Ingelheim Scherenhubtisch
DE20316905U1 (de) 2003-11-04 2005-03-17 Expert Maschb Gmbh Scheren-Hubtisch
DE102012012934A1 (de) 2012-06-29 2014-01-02 Christoph Mohr Scherenhubtisch und Verfahren zum Zusammenbau eines Scherenhubtisches
DE10066404B4 (de) 1999-06-19 2019-09-12 Flexlift-Hubgeräte GmbH Scherenhubtisch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221729A (ja) * 1982-06-15 1983-12-23 Shinko Electric Co Ltd 荷役作業車両の高さ調整装置
US4573663A (en) * 1983-05-20 1986-03-04 Hans Nussbaum Lifting device, especially elevating platform for motor vehicles
EP0364319A1 (fr) * 1988-10-11 1990-04-18 Bennes Marrel Appareil de chargement/déchargement de frêt aéroportuaire à régulation automatique de niveau
DE9005566U1 (de) 1990-05-16 1990-07-19 Heinrichs, Peter, 6507 Ingelheim Scherenhubtisch
DE10066404B4 (de) 1999-06-19 2019-09-12 Flexlift-Hubgeräte GmbH Scherenhubtisch
DE20316905U1 (de) 2003-11-04 2005-03-17 Expert Maschb Gmbh Scheren-Hubtisch
DE102012012934A1 (de) 2012-06-29 2014-01-02 Christoph Mohr Scherenhubtisch und Verfahren zum Zusammenbau eines Scherenhubtisches

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