EP1705108B1 - Dispositif de levage et un transporteur de levage avec un tel dispositif - Google Patents

Dispositif de levage et un transporteur de levage avec un tel dispositif Download PDF

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Publication number
EP1705108B1
EP1705108B1 EP20050006311 EP05006311A EP1705108B1 EP 1705108 B1 EP1705108 B1 EP 1705108B1 EP 20050006311 EP20050006311 EP 20050006311 EP 05006311 A EP05006311 A EP 05006311A EP 1705108 B1 EP1705108 B1 EP 1705108B1
Authority
EP
European Patent Office
Prior art keywords
hoisting
subassemblies
lifting device
support means
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20050006311
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German (de)
English (en)
Other versions
EP1705108A1 (fr
Inventor
Bruno Meinzinger
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.)
ROFA Rosenheimer Forderanlagen GmbH
Original Assignee
ROFA Rosenheimer Forderanlagen 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 ROFA Rosenheimer Forderanlagen GmbH filed Critical ROFA Rosenheimer Forderanlagen GmbH
Priority to EP20050006311 priority Critical patent/EP1705108B1/fr
Priority to DE200560003920 priority patent/DE602005003920T2/de
Publication of EP1705108A1 publication Critical patent/EP1705108A1/fr
Application granted granted Critical
Publication of EP1705108B1 publication Critical patent/EP1705108B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0616—Suspended platforms, i.e. the load platform hangs from the base
    • 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
    • B66F7/0633—Mechanical arrangements not covered by the following subgroups
    • 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
    • B66F7/0666—Multiple scissor linkages vertically arranged

Definitions

  • the present invention relates to a lifting device comprising an overhead support means, a hoisting means mounted on the support means and a load receiving means.
  • the lifting device according to the present invention may be used for an overhead lift carrier for assembling vehicles, in particular automobiles.
  • the present invention also relates to a process for lowering a load, in particular with a lifting device according to the invention, which provides enhanced control and stability of the load.
  • the present invention furthermore, provides a process for lifting a load with a lifting device, in particular with a lifting device according to the invention, which provides enhanced control and stability of the load.
  • DE-A-199 57 468 discloses a lift device, according to the preamble of claim 1, which may be used for the manufacture of vehicles.
  • Lift carrier systems in the automobile industry must meet a number of strict requirements in order to be useful in an industrial setting.
  • the lift carrier systems must be suitable for high precision transportation of large and heavy loads such as car bodies.
  • lateral stability of the load receiving means must be assured independent of the vertical position of the load receiving means in order to allow precise positioning despite forces acting on the loads in a lateral direction during assembly procedures.
  • the resistance of the lifting device against lateral displacement of the load must be extremely high.
  • a lateral displacement of less than 15 mm is required.
  • lift carrier systems must be reliable and require limited maintenance in order to avoid any interference with the highly integrated production processes of an industrial setting in the automotive industry. Accordingly, lift carrier systems must be simple and cost effective in design so as to justify an investment in an ever shortening product cycle in the automotive industry. Lift carrier systems must be adaptable to the constraints of a production facility where space is precious and a large vertical lift is often essential despite a limited available height of the facility. Finally, lift carrier systems must meet strict safety requirements, in order to be accepted by regulatory or safety authorities, in particular when overhead assembly procedures are intended.
  • Lifting devices in particular for lift carriers used in the automotive industries for assembling automobiles and other vehicles, are known.
  • Conventional lift carrier systems comprising an overhead support means may be moved along an overhead rail system.
  • Fig. 1 shows a typical conventional lift carrier system.
  • Such conventional lift carrier systems comprise hoisting means having belt assemblies and scissors guide assemblies for lifting a load receiving means.
  • the belt assemblies are used for actively lifting the load by driving the belts using a plurality of synchronized drive means.
  • the scissors assemblies are required for passively providing stability to the hoisting means and thereby to the load attached to the load receiving means.
  • a lifting device useful in the automotive industry which comprises an overhead support means, hoisting means mounted on the support means and a load receiving means provided at the lower end of the hoisting means, which does not need to rely on scissors guide and belt assemblies, and which at the same time provides a light and highly versatile design, a uniform control of the load over the entire vertical lift, and an enhanced lateral stability in any position of the load.
  • the present invention provides a lifting device, comprising an overhead support means, a hoisting means mounted on the support means, which has a longitudinal axis extending in hoisting direction from a lower end of the hoisting means toward the support means, and load receiving means provided at the lower end of the hoisting means.
  • a lifting device according to the present invention is characterized in that the hoisting means comprises hoisting subassemblies, said hoisting subassemblies being assembled to a laterally and longitudinally rigid hoisting assembly when passing the support means in the downward direction and said hoisting assembly is being disassembled when passing the support means in the upward direction.
  • a scissors guide and belt assembly of a conventional lifting device is avoided.
  • simple and cost effective hoisting subassemblies are employed which may contain segments which can be standardized and exchanged between different lifting devices, if desired, independent from the specific vertical lift requirements of the different lifting devices.
  • the hoisting subassemblies are assembled to a laterally and longitudinally rigid hoisting assembly supported by the support means when passing the support means in the downward direction. Accordingly, the hoisting subassemblies are driven by drive means provided at the support means and guided into a predetermined relative position while being supported by the support means so that adjacent hoisting subassemblies approach and releasably engage in a locking position, wherein lateral movement of the hoisting assembly is excluded.
  • the hoisting assembly is being disassembled when the hoisting subassemblies are driven by drive means provided at the support means in the opposite direction. The previous movement is reversed so that adjacent hoisting subassemblies disengage from the locking position.
  • the hoisting subassemblies are driven and guided to a storage position.
  • the hoisting subassemblies comprise segments which are pivotally connected so that during storage, the hoisting subassembly may be efficiently stowed in the storage means.
  • the hoisting assembly provides a uniform and improved lateral stability over the entire distance of the vertical lift. Moreover, since belt failure is excluded, additional safety measures for catastrophic belt failure may be avoided.
  • the present invention also provides a process for lowering a load with a lifting device, said process comprises the steps of providing a hoisting means comprising hoisting subassemblies, which is mounted on a support means, said hoisting means having a longitudinal axis extending in hoisting direction from a lower end of the hoisting means toward the support mean assembling the hoisting subassemblies to a laterally and longitudinally rigid hoisting assembly by moving the hoisting subassemblies across the support means in the downward direction.
  • the present invention provides a process for lifting a load with a lifting device, said process comprises the steps of providing a hoisting means comprising hoisting subassemblies, which is mounted on a support means, said hoisting means having a longitudinal axis extending in hoisting direction from a lower end of the hoisting means toward the support means; disassembling the hoisting assembly my moving the hoisting subassemblies across the support means in the upward direction.
  • the lifting device according to the invention is preferably used in the automotive industry such as for the manufacture of vehicles, in particular automobiles.
  • the present invention is based on the concept of providing a lifting device which does not need to rely on conventional scissors guide assemblies and/or belt assemblies.
  • the lifting device according to the invention relies on a plurality of hoisting subassemblies preferably comprising segments which are pivotally connected.
  • each subassembly represents a structure having lateral stability at least in a first direction perpendicular to the longitudinal axis of the hoisting subassembly while at the same time being laterally pivotally in a second direction which is perpendicular to the first direction. If each subassembly comprises segments which are pivotally connected, the subassembly may be folded above the support means so as to minimize the space required for storage of the segments.
  • a lifting device of the present invention comprises a plurality of hoisting subassemblies. The hoisting subassemblies cooperate when guided through the support means with adjacent hoisting subassemblies so as to form a stable hoisting assembly.
  • the hoisting means according to the present invention has a highly uniform structure. Accordingly, it is possible to provide an extended vertical lift while at the same time maintaining the high stability and control over the entire distance of the vertical lift. Moreover, it is possible to change the vertical lift by increasing or reducing the number of segments without having to resort to a fundamental change of the design.
  • the segments are light in design so that the overall weight of a lifting device may be significantly reduced.
  • An embodiments may be provided which is capable of replacing a conventional lift carrier having a weight of 3.7 tons, whereby the weight of the lift carrier of the invention is only in the range of 2.3 tons, which represents a significant reduction as compared to the prior art.
  • the hoisting subassemblies are assembled into three-dimensional hoisting means having lateral stability in any direction perpendicular to the longitudinal axis of the hoisting means.
  • Fig. 2 shows a lifting device (1) according to the present invention.
  • the lifting device (1) comprises an overhead support means (2).
  • the overhead support means (2) may be mounted on a conventional overhead carrier system. Alternatively, the overhead support means (2) may be mounted on a static structure.
  • the lifting device may comprise tappet means (201) connected to a drive means, which engages and actuates a segment of a hoisting subassembly.
  • the overhead support means (2) comprises a drive means (20) for actuating hoisting subassemblies. Accordingly, drive means (20) actuate tappet means (not shown in Fig.
  • the overhead support means (2) further comprises guiding means (22) for guiding the hoisting subassemblies from a storing means (23) towards the location were hoisting subassemblies are assembled to a hoisting means.
  • the overhead support means (2) further comprises storing means for folding the hoisting subassemblies when the hoisting means is lifted.
  • the lifting device (1) comprises a hoisting means (3).
  • the hoisting means (3) comprises a lower end (30) and a plurality of hoisting subassemblies (31, 32, 33, 34) assembled to form a hoisting assembly.
  • Each hoisting subassembly comprises a plurality of segments (301). Segments may comprise cam means (311) for engaging tappet means of the drive means (20).
  • the lifting device also comprises a load receiving means (4) for receiving and holding a load such as a car body.
  • the hoisting subassemblies (31, 32, 33, 34) comprise segments (301) which are pivotally connected. It is especially preferred that the segments are frame-work segments. Accordingly, the lifting device may be provided with and increased stability in vertical and lateral direction while having a reduced weight.
  • the segments are preferably pivotally around an axis perpendicular to the longitudinal axis of the hoisting means. Even more preferably, the hoisting assembly (35) is a load-bearing structure.
  • a tappet means (201) engages a segment of a hoisting subassembly when the hoisting means moves in the upward direction and pivots the segment around an axis perpendicular to the longitudinal axis, thereby decoupling the hoisting subassembly from adjacent hoisting subassemblies (31, 32, 33, 34).
  • the support means (2) of the lifting device according to the invention may comprise a guiding means (22) for receiving a cam means (311) provided on a segment (301).
  • the lifting device comprises at least two subassemblies (31, 32, 33, 34) which may be directly actuated by a drive means and the remaining subassemblies (31, 32, 33, 34) are indirectly actuated by a drive means via a directly actuated subassembly (31, 32, 33, 34).
  • the lifting device comprises a hoisting assembly (35) having four subassemblies (31, 32, 33, 34).
  • the lifting device may be part of a lifting carrier comprising the lifting device, whereby the overhead support means is contained in a trolley mounted on a horizontal member.
  • the lifting carrier may be an electrified monorail system (EMS).
  • the lifting device may comprise a lifting-swing mechanism or a lifting-swing-tilting mechanism for positioning the load.
  • the lifting carrier according to the invention may have a maximum lifting height of 2 to 7 m and a pivot of 40° to 150°.
  • the process for lowering a load with a lifting device comprises the steps of:
  • subassemblies (31, 32, 33, 34) are guided into close proximity so that adjacent subassemblies may engage, thereby forming a three-dimensional hoisting assembly.
  • the process for lifting a load with a lifting device comprises the steps of:
  • Fig. 4 shows a representation of a lifting device according to te present invention, wherein the load receiving means (4) is in the uppermost position. Accordingly, the hoisting means is completely lifted whereby the hoisting assembly is disassembled and the hoisting subassemblies are stored in the storing means (23).
  • the lifting device requires less space in a vertical direction for lifting a load to a predetermined level.
  • the lifting device according to the present invention may be mounted on a lift carrier device which relies on only two support rollers instead of four as in the conventional lifting devices, which additionally reduces the weight of the device.
  • the present invention relates according to a first aspect to a lifting device (1), comprising
  • the hoisting subassemblies (31, 32, 33, 34) comprise segments (301), which are preferably pivotally connected.
  • the segments may be frame-work segments which may preferably be pivotal around an axis perpendicular to the longitudinal axis of the hoisting means.
  • the hoisting assembly (35) is a load-bearing structure.
  • the overhead support means may comprise a drive means (20) for actuating one or more hoisting subassemblies (31, 32, 33, 34).
  • the drive means may comprise tappet means (201) engaging and actuating a segment of a hoisting subassembly.
  • the tappet means (201) may engage a segment of a hoisting subassembly when the hoisting means moves in the upward direction and pivots the segment around an axis perpendicular to the longitudinal axis, thereby decoupling the hoisting subassembly from adjacent hoisting subassemblies (31, 32, 33, 34).
  • the support means (2) may comprise a guiding means (22) for receiving a cam means (311) provided on a segment (301).
  • the support means (2) may further comprise a storing means (23) for accommodating a portion of a subassembly (31, 32, 33, 34) which has been decoupled from adjacent subassemblies (31, 32, 33, 34).
  • At least two subassemblies are directly actuated by a drive means and the remaining subassemblies (31, 32, 33, 34) are indirectly actuated by a drive means via a directly actuated subassembly (31, 32, 33, 34).
  • the hoisting assembly (35) may contain four subassemblies (31, 32, 33, 34).
  • a lifting carrier comprising the lifting device according to the invention.
  • the overhead support means may be a trolley mounted on a horizontal member.
  • the lifting carrier may be an electrified monorail system.
  • the lifting device of the lifting carrier may comprise a lifting-swing mechanism or a lifting-swing-tilting mechanism.
  • the lifting carrier preferably has a maximum lifting height of 2 to 7 m.
  • the pivot of the lifting carrier may be of from 40° to 150°.
  • the present invention also provides a process for lowering a load with a lifting device, said process comprises the steps of:
  • the present invention also provides a process for lifting a load with a lifting device, said process comprises the steps of:
  • a lifting device according to the invention may be used for the manufacture of vehicles.
  • the vehicles may preferably be cars.

Claims (9)

  1. Dispositif de levage (1) comprenant:
    (a) des moyens de support aériens (2),
    (b) des moyens élévateurs (3) montés sur les moyens de support (2) et possédant un axe longitudinal qui s'étend dans une direction de levage à partir de leur extrémité inférieure (30) vers les moyens de support, et
    (c) des moyens de réception de charge (4) disposés au niveau de l'extrémité arrière (30) des moyens élévateurs (3);
    caractérisé en ce que
    - les moyens élévateurs (3) comprennent des sous-ensembles élévateurs,
    - lesdits sous-ensembles élévateurs (31, 32, 33, 34) s'assemblant, en service, pour former un ensemble élévateur rigide latéralement et longitudinalement (35) en passant à travers les moyens de support (2) dans la direction descendante, et ledit ensemble élévateur (35) se désassemblant, en service, en passant à travers les moyens de support dans la direction ascendante.
  2. Dispositif de levage selon la revendication 1, dans lequel les sous-ensembles élévateurs (31, 32, 33, 34) comprennent des segments d'armature (301) pivotants sur un axe perpendiculaire à l'axe longitudinal des moyens élévateurs.
  3. Dispositif de levage selon la revendication 1 ou 2, dans lequel l'ensemble élévateur (35) est une structure porteuse de charge.
  4. Dispositif de levage selon l'une quelconque des revendications précédentes, dans lequel les moyens de support aériens comprenant des moyens d'entraînement (20) destinés à actionner un ou plusieurs sous-ensembles élévateurs (31, 32, 33, 34) et comportant des moyens poussoirs (201) venant en prise avec un segment d'un sous-ensemble élévateur et actionnant ledit segment.
  5. Dispositif de levage selon la revendication 4, dans lequel les moyens poussoirs (201) viennent en prise avec un segment d'un sous-ensemble élévateur lorsque les moyens élévateurs se déplacent dans la direction ascendante et font pivoter le segment sur un axe perpendiculaire à l'axe longitudinal, pour ainsi désaccoupler le sous-ensemble élévateur vis-à-vis des sous-ensembles élévateurs (31, 32, 33, 34) adjacents.
  6. Transporteur élévateur comprenant le dispositif de levage selon l'une quelconque des revendications précédentes.
  7. Transporteur élévateur selon la revendication 6, dans lequel les moyens de support aériens consistent en un chariot monté sur un organe horizontal.
  8. Procédé pour abaisser ou élever une charge à l'aide d'un dispositif de levage,
    ledit procédé d'abaissement comprenant les étapes qui consistent à:
    (a1-1) prévoir des moyens élévateurs (3) comprenant des sous-ensembles élévateurs, moyens élévateurs qui sont montés sur des moyens de support (2) et qui possèdent un axe longitudinal s'étendant dans une direction de levage à partir de leur extrémité inférieure (31) vers les moyens de support;
    (b1-1) assembler les sous-ensembles élévateurs pour former un ensemble élévateur rigide latéralement et longitudinalement (35) en déplaçant les sous-ensembles élévateurs à travers les moyens de support (2) dans la direction descendante, et
    ledit procédé d'élévation comprenant les étapes qui consistent à:
    (a1-2) prévoir des moyens élévateurs (3) comprenant des sous-ensembles élévateurs, moyens élévateurs qui sont montés sur des moyens de support (2) et qui possèdent un axe longitudinal s'étendant dans une direction de levage à partir de leur extrémité inférieure (31) vers les moyens de support;
    (b2-2) désassembler l'ensemble élévateur (35) en déplaçant les sous-ensembles élévateurs à travers les moyens de support dans la direction ascendante.
  9. Utilisation d'un dispositif de levage selon l'une quelconque des revendications 1 à 5 pour la fabrication de véhicules.
EP20050006311 2005-03-22 2005-03-22 Dispositif de levage et un transporteur de levage avec un tel dispositif Expired - Fee Related EP1705108B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20050006311 EP1705108B1 (fr) 2005-03-22 2005-03-22 Dispositif de levage et un transporteur de levage avec un tel dispositif
DE200560003920 DE602005003920T2 (de) 2005-03-22 2005-03-22 Hebevorrichtung und diese enthaltender Hebeträger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20050006311 EP1705108B1 (fr) 2005-03-22 2005-03-22 Dispositif de levage et un transporteur de levage avec un tel dispositif

Publications (2)

Publication Number Publication Date
EP1705108A1 EP1705108A1 (fr) 2006-09-27
EP1705108B1 true EP1705108B1 (fr) 2007-12-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050006311 Expired - Fee Related EP1705108B1 (fr) 2005-03-22 2005-03-22 Dispositif de levage et un transporteur de levage avec un tel dispositif

Country Status (2)

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EP (1) EP1705108B1 (fr)
DE (1) DE602005003920T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3090977B1 (fr) * 2015-05-07 2017-12-13 Schelling Anlagenbau GmbH Dispositif de levage
DE102018113202A1 (de) * 2017-06-02 2018-12-06 Dücker Group GmbH Palettenroboter mit Greifwerkzeug
CN107500127B (zh) * 2017-08-24 2019-04-16 安徽江淮汽车集团股份有限公司 一种四带提升自行小车吊具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767812A (en) * 1952-04-15 1956-10-23 Ray E Boger Extensible structure
EP0963904B1 (fr) * 1998-06-10 2003-10-29 Adelardo Lopez Alba Système de transport avec charge suspendue et dispositif pour soulever et abaisser à bord
DE19957468A1 (de) * 1999-11-24 2001-06-13 Mannesmann Ag Hebevorrichtung mit einer Führung für Lasten
US6571970B1 (en) * 2000-10-16 2003-06-03 Rapistan Systems Advertising Corp. Monorail telescopic carrier

Also Published As

Publication number Publication date
EP1705108A1 (fr) 2006-09-27
DE602005003920T2 (de) 2008-04-30
DE602005003920D1 (de) 2008-01-31

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