EP0336927A1 - Pont de voiture mobile - Google Patents

Pont de voiture mobile Download PDF

Info

Publication number
EP0336927A1
EP0336927A1 EP89890095A EP89890095A EP0336927A1 EP 0336927 A1 EP0336927 A1 EP 0336927A1 EP 89890095 A EP89890095 A EP 89890095A EP 89890095 A EP89890095 A EP 89890095A EP 0336927 A1 EP0336927 A1 EP 0336927A1
Authority
EP
European Patent Office
Prior art keywords
lifting arm
piston unit
lifting
cylinder
free end
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.)
Granted
Application number
EP89890095A
Other languages
German (de)
English (en)
Other versions
EP0336927B1 (fr
Inventor
Hydraulik-Gesellschaft M.B.H. Stelzl
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.)
Stelzl Hydraulik-Gesellschaft Mbh
Original Assignee
Stelzl Hydraulik-Gesellschaft Mbh
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 Stelzl Hydraulik-Gesellschaft Mbh filed Critical Stelzl Hydraulik-Gesellschaft Mbh
Publication of EP0336927A1 publication Critical patent/EP0336927A1/fr
Application granted granted Critical
Publication of EP0336927B1 publication Critical patent/EP0336927B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • 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
    • B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
    • 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
    • B66F7/0641—Single levers, e.g. parallel links

Definitions

  • the invention relates to a mobile lifting platform for lifting motor vehicles with a pivotable lifting arm which is pivotably articulated on a movable base frame and can be lowered into a position between lateral parts of the base frame which form an access ramp, the lifting arm at the free end of the same lateral support arms carries, which are guided parallel to the floor level with a parallelogram and the lifting arm is pivotable by means of a hydraulic cylinder-piston unit, the cylinder-piston unit engages at a distance from the free end of the lifting arm, which corresponds to at least 15% of the length of the lifting arm, and on a method for lifting a motor vehicle with such a lifting platform.
  • movable devices for lifting motor vehicles In addition to stationary lifting platforms, in which a platform can usually be raised via four lifting drives arranged at the corners of a platform, movable devices for lifting motor vehicles have become known, which are referred to as marshalling jacks.
  • the first-mentioned stationary devices for lifting motor vehicles have proven themselves in workshops and, after lifting the motor vehicle, allow largely free access to many units, in particular the transmission of the cardan shaft and the exhaust.
  • differently constructed jacks for example the aforementioned jacking jacks, are more suitable, in which the motor vehicle can be raised at correspondingly stiffened and stable points on its body, so that the tires can be lifted off the tread.
  • a mobile lifting platform has now been created in which the lifting of a motor vehicle is possible with a single movable or displaceable jack of correspondingly large dimensions, the motor vehicle being lifted and lifted Position is kept parallel to the floor level.
  • the invention now aims to develop and improve a mobile lifting platform of the type mentioned at the outset in such a way that the stability and safety is increased and in the raised state the ground clearance, ie the accessibility on the underside of the vehicle, is improved.
  • the device according to the invention should not only create the possibility of opening all doors without restriction, regardless of whether the vehicle is at the lowest or highest point on the stage, but it should also work on all units, such as exhaust, gearbox , Axle, cardan shaft, brakes or the like. be relieved.
  • the design according to the invention essentially consists in that the hydraulic cylinder-piston unit is mounted at a distance from the pivot axis of the lifting arm, which at maximum operating height of the support arms has a pivoting angle of the axis of the cylinder-piston unit to the ground plane between 75 ° and 105 °, preferably about 90 °, and that the lifting arm between the point of application of the cylinder-piston unit and the articulation point of the support arms essentially as to the free end of the same open U-beam is formed.
  • the reaction forces are better absorbed and greater stability is achieved. Since the cylinder-piston unit acts at a distance from the free end of the lifting arm, a space is created above the cylinder-piston unit, which improves the accessibility of the units, it being essential for improving the accessibility that the lifting arm between the point of application of the Cylinder-piston unit and the articulation point of the support arms is essentially designed as an open U-beam to the free end of the same.
  • Such a design of the upper end of the lifting arm, on which the support arms for supporting the base plate of the motor vehicle engage creates a corresponding free space, which enables cardan shafts and exhaust systems to be removed without obstruction by the lifting platform.
  • the training for improving the stability is such that the support arms at the free ends of the open U-beam are articulated in a manner known per se about an axis which is essentially normal to the plane of the floor and starting from this articulation point at an angle of at least 5 ° inclined are connected.
  • Such an angled arrangement of the support arms acting on the free end of the lifting arm in particular an appropriately cranked configuration, further increases the available space and further improves the accessibility of the units of a motor vehicle accessible from the underside of a motor vehicle.
  • the angling or cranking creates additional space and increases the stability of the support of the motor vehicle on the lifting platform.
  • the design is advantageously made such that a parallelogram link for the support arms is assigned to each U-leg of the lifting arm.
  • the arrangement of two parallelogram links makes it possible to dispense with connecting rods in the end region of the lifting arm and to separately guide the support arms, which each engage one of the free legs of the U-shaped support, in parallel. This in turn leads to an improvement in the accessibility of the units from the underside of the motor vehicle and to an increase in the available space.
  • a relatively high hydraulic pressure is required at the beginning of the lifting process in order to enable lifting.
  • the required hydraulic pressure in the hydraulic cylinder-piston unit drops.
  • Safety monitoring is advantageously possible with such a design if the design is such that the cylinder-piston unit is provided with an angular position transmitter and / or a pressure sensor for the hydraulic medium.
  • the angular position transmitter can be used in itself to limit the lifting movement of the lifting platform in order to prevent the lifting jack from being pivoted into an unstable position.
  • the method for lifting a motor vehicle with such a lifting platform can advantageously be carried out in accordance with the invention in such a way that the hydraulic medium supply is controlled as a function of the pressure in the cylinder-piston unit and is switched off when it drops to a predetermined minimum value. In this way it is ensured that a corresponding load is diverted into the hydraulic cylinder-piston unit even in the respectively raised position, whereby the stability of the lifting platform is ensured in every operating position.
  • FIG. 1 shows a schematic side view of a lifting platform according to the invention and FIG. 2 shows a partial view in the direction of arrow II of FIG. 1.
  • a hydraulic cylinder-piston unit 3 is pivotally supported on the base frame 1, the pivot axis 4 of which is lower than the pivot axis 5 of the lifting arm 6 for lifting a motor vehicle.
  • support arms 7 are attached, which act pivotably on the free end of the lifting arm 6 about a pivot axis 8 which is essentially normal to the floor level.
  • the bearing part 9, on which the support arms 7 pivotably engage, is held substantially parallel to the plane of the base frame even during the lifting process and in any position, for which purpose a parallelogram link 10 is provided, which acts on the bearing part 9 via an angle arm 11.
  • the drive motor for the hydraulics is designated by 12 in FIG.
  • the lifting platform is not yet at the nominal height, since the angle between the axis of the hydraulic cylinder-piston unit 3 and the plane given by the base frame is still less than 75 °.
  • the pressure in the hydraulic cylinder-piston unit 3 is larger than in a position in which the axis of the cylinder-piston unit 3 is at an angle of 75 ° to 105 ° to the level of the base frame and it can therefore be used to raise or raise the lift the pressure of the medium in hydraulic cylinder-piston unit are monitored by means of a schematically illustrated pressure sensor 13.
  • the further pressure medium supply is switched off. Since the pressure at the start of the lifting process is much greater than in the end position, it is in any case additionally desirable to provide an angular position sensor which engages on the pivot axis 4 and is indicated schematically by 14, which ensures that the correspondingly higher pressure is applied at the beginning of the lifting process Is made available and a pressure-dependent shutdown takes place only after reaching a predetermined minimum pivot position.
  • the hydraulic cylinder-piston unit 3 acts at a distance a from the free end of the lifting arm 6 on the lifting arm 6, which corresponds to approximately one third of the length of the lifting arm in the illustration in FIG. In this way it is possible to design the free end of the lifting arm 6 without loss of stability as an essentially U-shaped carrier, the free legs of which are denoted by 15 and 16.
  • the bearing part 9 for the support arms 7 is in turn connected to each of these free legs 15 and 16, and each of these two bearing parts 9 is guided parallel to the plane of the base frame 1 via a separate parallelogram rod 10. A corresponding free space thus remains between the two free legs 15 and 16 of the U-shaped carrier the expansion of cardan shafts, exhaust systems or the like. facilitated.
  • ramps and running surfaces 17 connected to the side of the base frame are indicated schematically.
  • the lifting arm 6 can be lowered by pivoting about the pivot axis 5 into a position between these lateral ramp parts or tread parts 17.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Handcart (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Actuator (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
EP89890095A 1988-04-07 1989-04-06 Pont de voiture mobile Expired - Lifetime EP0336927B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT905/88 1988-04-07
AT90588 1988-04-07

Publications (2)

Publication Number Publication Date
EP0336927A1 true EP0336927A1 (fr) 1989-10-11
EP0336927B1 EP0336927B1 (fr) 1992-11-25

Family

ID=3502544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890095A Expired - Lifetime EP0336927B1 (fr) 1988-04-07 1989-04-06 Pont de voiture mobile

Country Status (5)

Country Link
US (1) US5025892A (fr)
EP (1) EP0336927B1 (fr)
AT (1) ATE82737T1 (fr)
CA (1) CA1318312C (fr)
DE (1) DE58902797D1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995004698A1 (fr) * 1993-08-10 1995-02-16 Ackermann Inter Ltd Plate-forme de levage de structure plate
RU2184074C1 (ru) * 2000-12-20 2002-06-27 Общество с ограниченной ответственностью "Гароми плюс" Подъемник для автомобилей
CN103507872A (zh) * 2013-09-18 2014-01-15 立马车业集团有限公司 车架装配输送线
DE102016002924A1 (de) * 2016-03-04 2017-09-07 Ventzki Handling Systems Gmbh & Co. Kg Hebevorrichtung
WO2018189139A1 (fr) * 2017-04-13 2018-10-18 Finkbeiner, Gerhard Élévateur
WO2020248652A1 (fr) * 2019-06-10 2020-12-17 乐歌人体工学科技股份有限公司 Procédé de réglage d'équilibre de plateforme de levage
DE102020205451A1 (de) 2020-04-29 2021-11-04 Volkswagen Aktiengesellschaft Mobile Hebevorrichtung
DE102024110558A1 (de) 2024-04-15 2025-10-16 Ewo Fluid Power Gmbh Hydraulischer Wagenheber

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156238A (en) * 1991-11-18 1992-10-20 Delaware Capital Formation, Inc. Portable surface lift for a vehicle
US5340082A (en) * 1992-03-30 1994-08-23 Delaware Capital Formation, Inc. Portable surface lift for a vehicle
US6241049B1 (en) * 1998-05-26 2001-06-05 William C. Gooch Apparatus for storing vehicles with multiple support platforms, collapsible supports between platforms, and a torque-reaction arm lift system
DE19839835A1 (de) * 1998-09-02 2000-03-16 Gerhard Finkbeiner Hebevorrichtung
US6644615B1 (en) 2002-07-03 2003-11-11 Larin Corporation Stabilized jack stand
US7360983B2 (en) * 2003-04-04 2008-04-22 Pate Buck A Portable elevated vehicle display
US7509187B2 (en) * 2005-02-28 2009-03-24 The Braun Corporation Wheelchair lift with a rotary sensor used to determine lift position
US20060245873A1 (en) * 2005-03-31 2006-11-02 Black Jim D Snowmobile lifting device
US10377611B2 (en) * 2016-10-28 2019-08-13 Advance Lifts, Inc. Scissors lift with height sensor system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120096B (de) * 1959-03-17 1961-12-21 Ind Technik M B H Ges Schwenkhebebuehne
DE1124654B (de) * 1960-09-09 1962-03-01 Ind Technik M B H Ges Schwenkhebebuehne
FR1413813A (fr) * 1964-11-18 1965-10-08 Trepel K G Maschinenfabrik Cric roulant
DE1965142A1 (de) * 1969-12-27 1971-07-08 Kaspar Klaus Einrichtung zum Parken zweier Fahrzeuge uebereinander
GB2053152A (en) * 1979-07-11 1981-02-04 Mecanica Y Oleohidraulica Auxi Garage lifts
DE3000492A1 (de) * 1980-01-08 1981-07-09 Hillesheimer, Walter, Dipl.-Ing. Dr., 6078 Neu-Isenburg Hydraulisch betriebene hebebuehne o.dgl.
US4548387A (en) * 1984-04-27 1985-10-22 Euro California, Inc. Mobile hoist
GB2188610A (en) * 1986-02-21 1987-10-07 Gerhard Finkbeiner Hydraulic hoist assembly
WO1987006569A1 (fr) * 1986-04-30 1987-11-05 Brodmann, George, L. Pont elevateur pour atelier de reparation de vehicules

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629583A (en) * 1945-10-18 1953-02-24 Auto Specialties Mfg Co Hydraulic jack
US2576908A (en) * 1947-09-20 1951-11-27 Walco Inc Hoisting apparatus
US3065573A (en) * 1959-08-13 1962-11-27 Goldberg Samuel Building construction
CH393679A (de) * 1962-04-11 1965-06-15 Focke Wulf Gmbh Ortsveränderliche Hebebühne zum Anheben und Schrägstellen eines Kraftwagens
US3276548A (en) * 1963-08-28 1966-10-04 Tecalemit Engineering Safety devices for hoists
DE2117451A1 (de) * 1970-04-08 1971-10-28 Tranchero, Jacques, Piasco, Cuneo (Italien) Fahrbare^ Wagenheber, insbesondere für Kraftfahrzeuge, mit automatischer Sicherheitsvorrichtung
US3814414A (en) * 1972-07-24 1974-06-04 H Chapa Medical examination table
US3783976A (en) * 1972-07-26 1974-01-08 J Kerr Safety device for hydraulically operated lift
US3806109A (en) * 1972-08-14 1974-04-23 Tri W G Inc Tiltable treatment table
US4323141A (en) * 1980-03-11 1982-04-06 Fmc Corporation Rail-mounted vehicle jack
DE3421159A1 (de) * 1984-06-07 1985-12-12 Shu Chern Chia-Yi City Liang Auf raedern fahrbarer wagenheber
US4724930A (en) * 1985-03-25 1988-02-16 554072 Ontario Inc. Hydraulic lift
ZA861660B (en) * 1986-03-14 1987-05-13 Shinn Fu Corporation High-speed jack assisted by rear wheels or by both the front and the rear wheels

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120096B (de) * 1959-03-17 1961-12-21 Ind Technik M B H Ges Schwenkhebebuehne
DE1124654B (de) * 1960-09-09 1962-03-01 Ind Technik M B H Ges Schwenkhebebuehne
FR1413813A (fr) * 1964-11-18 1965-10-08 Trepel K G Maschinenfabrik Cric roulant
DE1965142A1 (de) * 1969-12-27 1971-07-08 Kaspar Klaus Einrichtung zum Parken zweier Fahrzeuge uebereinander
GB2053152A (en) * 1979-07-11 1981-02-04 Mecanica Y Oleohidraulica Auxi Garage lifts
DE3000492A1 (de) * 1980-01-08 1981-07-09 Hillesheimer, Walter, Dipl.-Ing. Dr., 6078 Neu-Isenburg Hydraulisch betriebene hebebuehne o.dgl.
US4548387A (en) * 1984-04-27 1985-10-22 Euro California, Inc. Mobile hoist
GB2188610A (en) * 1986-02-21 1987-10-07 Gerhard Finkbeiner Hydraulic hoist assembly
WO1987006569A1 (fr) * 1986-04-30 1987-11-05 Brodmann, George, L. Pont elevateur pour atelier de reparation de vehicules

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995004698A1 (fr) * 1993-08-10 1995-02-16 Ackermann Inter Ltd Plate-forme de levage de structure plate
US5613575A (en) * 1993-08-10 1997-03-25 Ackermann Inter Ltd. Flat-structure lifting platform
RU2184074C1 (ru) * 2000-12-20 2002-06-27 Общество с ограниченной ответственностью "Гароми плюс" Подъемник для автомобилей
CN103507872A (zh) * 2013-09-18 2014-01-15 立马车业集团有限公司 车架装配输送线
CN103507872B (zh) * 2013-09-18 2016-05-18 立马车业集团有限公司 车架装配输送线
DE102016002924A1 (de) * 2016-03-04 2017-09-07 Ventzki Handling Systems Gmbh & Co. Kg Hebevorrichtung
WO2018189139A1 (fr) * 2017-04-13 2018-10-18 Finkbeiner, Gerhard Élévateur
US11655129B2 (en) 2017-04-13 2023-05-23 Gerhard Finkbeiner Lifting platform
WO2020248652A1 (fr) * 2019-06-10 2020-12-17 乐歌人体工学科技股份有限公司 Procédé de réglage d'équilibre de plateforme de levage
DE102020205451A1 (de) 2020-04-29 2021-11-04 Volkswagen Aktiengesellschaft Mobile Hebevorrichtung
DE102020205451B4 (de) * 2020-04-29 2025-11-27 Volkswagen Aktiengesellschaft Mobile Hebevorrichtung
DE102024110558A1 (de) 2024-04-15 2025-10-16 Ewo Fluid Power Gmbh Hydraulischer Wagenheber
EP4640619A1 (fr) 2024-04-15 2025-10-29 EWO Fluid Power GmbH Cric hydraulique

Also Published As

Publication number Publication date
ATE82737T1 (de) 1992-12-15
DE58902797D1 (de) 1993-01-07
US5025892A (en) 1991-06-25
CA1318312C (fr) 1993-05-25
EP0336927B1 (fr) 1992-11-25

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