EP0461341B1 - Elévateur pour véhicules automobiles - Google Patents

Elévateur pour véhicules automobiles Download PDF

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Publication number
EP0461341B1
EP0461341B1 EP91102414A EP91102414A EP0461341B1 EP 0461341 B1 EP0461341 B1 EP 0461341B1 EP 91102414 A EP91102414 A EP 91102414A EP 91102414 A EP91102414 A EP 91102414A EP 0461341 B1 EP0461341 B1 EP 0461341B1
Authority
EP
European Patent Office
Prior art keywords
lifting
platform according
lifting platform
support pipe
sleeve
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
EP91102414A
Other languages
German (de)
English (en)
Other versions
EP0461341A1 (fr
Inventor
Hans Nussbaum
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.)
Otto Nussbaum GmbH and Co KG
Original Assignee
Otto Nussbaum GmbH and Co KG
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 Otto Nussbaum GmbH and Co KG filed Critical Otto Nussbaum GmbH and Co KG
Publication of EP0461341A1 publication Critical patent/EP0461341A1/fr
Application granted granted Critical
Publication of EP0461341B1 publication Critical patent/EP0461341B1/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
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement

Definitions

  • the invention relates to a lifting platform for motor vehicles, in particular passenger cars, with at least two vertically movable columns which have a support surface for receiving the vehicle at the top, the columns being arranged underground in a pit in the retracted state and the support surface being approximately at the level of the workshop floor .
  • a lifting platform with the features of the preamble of claim 1 is known from DE-A 38 36 903.
  • the sleeve is arranged on a disk piston acting on both sides and contains in its interior a second piston which can be moved relative to it and which functions as a support tube, forming an annular gap.
  • the annular gap between the sleeve and the support tube is filled with a hydraulic medium and is connected to an annular space on the outside of the sleeve via a sleeve bore.
  • the disc piston When the sleeve is raised, the disc piston displaces the hydraulic oil located in the outer annular gap and presses it via the sleeve bore into the space inside the sleeve, so that the support tube carries out an additional lifting movement relative to the sleeve.
  • US-A-4 892 028 discloses an above-ground lifting platform in which the support tube is connected to one end of a rope which runs over a deflection roller arranged above and is fixed in place at the other end.
  • the deflection roller sits on the piston rod of a hydraulic unit and can thus be moved upwards, whereby the support tube is carried along by the rope mentioned at twice the lifting speed.
  • the present invention has for its object to improve a built-in lift in the workshop floor of the type described in such a way that it manages with a lower pit depth at the same lifting height.
  • the lifting platform according to the invention should be characterized by a robust and inexpensive construction.
  • the lifting element By connecting the support tube to the traction means, which in turn runs over a deflecting roller of the lifting element, the lifting element generates a stroke path of the support tube which is twice as large when it is raised. At the same time, the guide of the support tube is continuously shifted upward by the movable sleeve, so that the support tube is stabilized in the transverse direction even in the extended state.
  • the invention consists essentially in the combination of the lift reinforcement with the telescopic guide.
  • the movable sleeve which acts as a telescopic guide for the support tube, can be arranged inside or outside the same. It expediently surrounds the support tube on the outside thereof and is in turn guided in a guide bush which is embedded in the workshop floor.
  • the method of the sleeve can be generated by the support tube, for example in such a way that the support tube comes into contact with the sleeve after reaching half the lift height and takes it along during the rest of the stroke .
  • the sleeve is rigidly connected to the lifting element and carries out the lifting movements synchronously with it.
  • the lift can have four columns, which are connected in pairs via entry rails for the vehicle. In practice, however, it is sufficient if only two pillars are provided, one on each side of the vehicle. In this case, it is particularly expedient if an anti-rotation device is attached between the support tube and the lifting element.
  • the support tube can have a guide plate surrounding the lifting element near its lower end, the central opening of which corresponds to the outer contour of the lifting element.
  • the lifting force is introduced into the columns either directly on the lifting elements or via the common transverse yoke.
  • the lifting elements can be part of a hydraulically actuated cylinder-piston unit.
  • the transverse yoke can be made using lifting spindles or a scissor-type frame.
  • the lifting platform is in the lowered state.
  • the two support surfaces 1a and 1b which serve to accommodate the vehicle, are located on the same Level as the workshop floor 2.
  • Their two pillars which are generally designated 3a and 3b, stand on the foundation 5 of a pit 6.
  • a lifting element 7a or 7b in the form of a cylinder-piston unit, the piston rod 8a or 8b of which carries a deflecting roller 9a or 9b at the upper end and moves it hydraulically upwards can be.
  • a traction device 10a or 10b in the form of a chain or a rope runs over the deflection roller.
  • This traction means is fixed at one end, for example on the foundation or on the cylinder of the lifting element 7a, 7b, while the opposite other end is connected to the lower region of a support tube 11a or 11b.
  • the aforementioned support surface 1a or 1b is mounted on this support tube.
  • a second traction means with its own deflection roller is arranged in each column at a short distance from each other and this traction means acts on the opposite side of the first traction means.
  • the sleeve is directly or indirectly connected to the upward moving part of the lifting element, in this case to the piston 8a or 8b.
  • the piston rod 8a or 8b has a downward extension 13a or 13b for this purpose, which is connected to the sleeve 12a or 12b near the lower end of the support tube 11a, in the exemplary embodiment by means of a transverse yoke 14 which the two reciprocating pistons 8a and 8b and the sleeves 11a and 11b connected thereto are synchronized.
  • the two sleeves each run in a guide bush 15a or 15b, which is embedded in the workshop floor.
  • the length of the sleeves corresponds approximately to the travel of the piston rods 8a and 8b and thus approximately half the stroke of the support tubes 11a and 11b.
  • the mode of operation is as follows: If the lifting elements 7a and 7b are pressurized with oil, the piston rods 8a and 8b and, at the same speed, the two sleeves 12a and 12b move upwards. At the same time, but at twice the lifting speed, the support tubes 11a and 11b are raised by the traction means 10a and 10b running over the deflection rollers. Through them at half speed Following sleeves 12a and 12b, the guide for the support tubes is shifted upwards, ie that the support tube is supported by the sleeve at about half the height of the extended stroke length.
  • guide rings 16a or 16b are provided between the support tube 11a or 11b and its sleeve 12a or 12b, in the form of two rings arranged at a distance from one another. This prevents a tilting game between the two parts.
  • These guide rings can be positioned at the lower end of the support tube or at the upper end of the sleeve.
  • Sealing ring pairs 17a and 17b between the sleeve and its guide bushing 15a and 15b serve the same purpose.
  • an anti-rotation device in the form of a plate 18a, which forms the lower end of the support tube 11a, to which the traction means 10a is anchored and which has an opening 19a with a square cross-section, matching the contour of the downward extension 13a of the piston rod 8a.
  • Figure 3 shows a cross section at the level of the guide rollers. It can be seen here that in each column two juxtaposed deflection rollers 9a and 9a 'are arranged, each of which is assigned a separate traction means 10a or 10a'. These traction means are arranged in opposite directions, so that their ends performing the lifting movement act on approximately opposite regions of the support tube 11a.
  • the described invention is characterized by a small installation depth without restriction of the lifting height and by exact guidance of the support tubes in their raised position.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (12)

  1. Elévateur pour véhicule automobile, comportant au moins deux colonnes (3a, 3b) déplaçables verticalement, qui présentent sur leur dessus une surface de support (1a, 1b) pour la réception du véhicule, les colonnes étant disposées à l'état rentré de manière souterraine dans un renfoncement (6), les surfaces de support (1a, 1b) étant situées à peu près au niveau du sol de l'atelier, les colonnes incluant chacune un tube de support (11a, 11b) déplaçable verticalement, qui supporte en son sommet les surfaces de support (1a, 1b), ainsi qu'une douille (12a, 12b) déplaçable relativement au tube de support (11a, 11b), qui fait office, lors de l'actionnement des colonnes, de guide télescopique pour le tube de support (11a, 11b),
    caractérisé en ce que
    a) au niveau du tube de support (11a, 11b), est disposé un élément de levage (7a, 7b) comportant une partie déplaçable verticalement (8a, 8b),
    b) la partie (8a, 8b) déplaçable verticalement de l'élément de levage (7a, 7b) supporte à son extrémité supérieure une poulie de renvoi (9a, 9b) pour un moyen d'entraînement (10a, 10b), au moins partiellement flexible, dont une extrémité est montée stationnaire,
    c) le tube de support (11a, 11b) est relié par le dessous avec l'autre extrémité du moyen d'entrainement (10a, 10b) et
    d) la partie déplaçable (8a, 8b) de l'élément de levage (7a, 7b) est reliée à la douille (12).
  2. Elévateur selon la revendication 1, caractérisé en ce que la douille (12a, 12b) faisant office de guide télescopique entoure le tube de support (11a, 11b) sur son côté extérieur, et la douille de son côté est guidée dans un étui (15a, 15b) de guidage sensiblement à la hauteur du sol de l'atelier (2).
  3. Elévateur selon la revendication 1 ou 2, caractérisé en ce que la douille (12a, 12b) est reliée de manière rigide avec l'élément de levage (8a, 8b).
  4. Elévateur selon l'une des revendications précédentes, dans lequel une seule colonne (3a, 3b) est utilisée pour chacun des deux côtés du véhicule, caractérisé en ce qu'est rapporté un dispositif anti-torsion (18a) entre le tube de support (11a, 11b) et l'élément de levage (7a, 7b , 8a, 8b).
  5. Elévateur selon l'une des revendications précédentes, caractérisé en ce que sont réalisés deux moyens d'entrainement (10a, 10b) au niveau de chaque colonne (3a, 3b), qui coopèrent à deux endroits sensiblement opposés du tube de support (11a, 11b).
  6. Elévateur selon l'une des revendications précédentes, caractérisé en ce que le tube de support (11a, 11b) présente, à proximité de son extrémité inférieure, une plaque de guidage (18a), faisant office de dispositif anti-torsion, et entourant l'élément de levage (7a, 7b, 8a, 8b).
  7. Elévateur selon l'une des revendications précédentes, caractérisé en ce que les deux colonnes (3a, 3b) sont reliées l'une à l'autre pour la synchronisation de leur mouvement de levage.
  8. Elévateur selon la revendication 7, caractérisé en ce que la liaison est réalisée au moyen d'une traverse (14) qui est reliée de manière rigide avec les deux éléments de levage (7a, 7b).
  9. Elément de levage selon la revendication 8, caractérisé en ce qu'aussi bien les deux éléments de levage (7a, 8a) qu'également les deux douilles (12a, 12b) sont immobilisés avec la traverse (14).
  10. Elévateur selon la revendication 8 ou 9, caractérisé en ce que la source de force de levage est disposée sur la traverse (14).
  11. Elévateur selon l'une des revendications 1 à 9, caractérisé en ce que l'élément de levage (7a, 7b, 8a, 8b) est un ensemble piston cylindre actionnable hydrauliquement et comportant une tige de piston (8a, 8b) déplaçable vers le haut.
  12. Elévateur selon l'une des revendications 1 à 9, caractérisé en ce que l'élément de levage (7a, 7b, 8a, 8b) est un ensemble cylindre piston hydraulique, dont le cylindre est déplaçable vers le haut, et contre lequel la tige de piston repose sur la base.
EP91102414A 1990-06-12 1991-02-20 Elévateur pour véhicules automobiles Expired - Lifetime EP0461341B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4018726 1990-06-12
DE4018726A DE4018726A1 (de) 1990-06-12 1990-06-12 Hebebuehne fuer kraftfahrzeuge

Publications (2)

Publication Number Publication Date
EP0461341A1 EP0461341A1 (fr) 1991-12-18
EP0461341B1 true EP0461341B1 (fr) 1994-06-01

Family

ID=6408225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102414A Expired - Lifetime EP0461341B1 (fr) 1990-06-12 1991-02-20 Elévateur pour véhicules automobiles

Country Status (5)

Country Link
US (1) US5129483A (fr)
EP (1) EP0461341B1 (fr)
JP (1) JPH04226298A (fr)
AT (1) ATE106359T1 (fr)
DE (2) DE4018726A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108128723A (zh) * 2017-12-31 2018-06-08 江俊华 一种水利工程建坝用升降设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339925A (en) * 1993-11-23 1994-08-23 Price Raymond D Hydraulic chain lift
DE29715008U1 (de) * 1997-08-22 1997-10-02 Otto Nussbaum GmbH & Co. KG, 77694 Kehl Transport- und Lagereinrichtung, insbesondere für Kraftfahrzeuge
DE102009014719B4 (de) * 2009-03-27 2019-06-13 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Säulenhebebühne für Kraftfahrzeuge
CN105347143B (zh) * 2015-11-27 2018-07-03 东南电梯股份有限公司 一种无导轨液压升降平台及升降方法
CN107381343A (zh) * 2017-08-29 2017-11-24 江汉大学 一种自行走式龙门升降装置
DE202018107407U1 (de) 2017-12-28 2019-03-29 Klaus Multiparking Gmbh Vorrichtung zum Abstellen von Fahrzeugen
CN114162746B (zh) * 2021-12-28 2023-03-21 中国建筑第二工程局有限公司 一种建筑施工用临时物品举升平台及其施工方法

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DE145189C (fr) *
US1886253A (en) * 1930-02-24 1932-11-01 Standard Lift Company Multiple plunger lift
DE1141428B (de) * 1958-09-10 1962-12-20 Helmut Rudolph Hydraulische Hebebuehne mit mehreren Teleskop-Hohlkolben
US3536162A (en) * 1968-01-25 1970-10-27 Autoquip Corp "u" frame hydraulic vehicle lift
US3489248A (en) * 1968-01-25 1970-01-13 Autoquip Corp U-frame hydraulic vehicle lift
DE2307711A1 (de) * 1973-02-16 1974-08-22 Emil Drestler Hebebuehne fuer kraftfahrzeuge
DE2604256A1 (de) * 1976-02-04 1977-08-11 Walter Vogler Hebevorrichtung mit sicherheitsabstuetzung fuer fahrzeuge
US4134475A (en) * 1977-06-20 1979-01-16 Dura Corporation Adjustable pad hydraulic lift
US4196887A (en) * 1977-12-28 1980-04-08 Yasui Sangyo Co., Ltd. Vehicle support
DE3235829A1 (de) * 1982-09-28 1984-03-29 Kirner Auto-Präzision Robert Fuchs GmbH & Co KG, 6570 Kirn Hebebuehne fuer fahrzeuge, insbesondere personenkraftwagen
DE3333166A1 (de) * 1983-09-14 1985-03-28 Walter 7290 Freudenstadt Finkbeiner Hebebock
US4892028A (en) * 1984-09-10 1990-01-09 Vbm Corporation Fluid operated circuit for controlling a dual post hydraulic lift assembly
DE3836903C1 (fr) * 1988-10-29 1990-02-22 Maschinenfabrik J.A. Becker U. Soehne Neckarsulm Gmbh & Co Kg, 7107 Neckarsulm, De
DE9003685U1 (de) * 1990-03-29 1990-06-07 Franz Hörnstein GmbH & Co. KG, 7100 Heilbronn Hebebühne für Kraftfahrzeuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108128723A (zh) * 2017-12-31 2018-06-08 江俊华 一种水利工程建坝用升降设备

Also Published As

Publication number Publication date
US5129483A (en) 1992-07-14
JPH04226298A (ja) 1992-08-14
DE59101766D1 (de) 1994-07-07
EP0461341A1 (fr) 1991-12-18
ATE106359T1 (de) 1994-06-15
DE4018726A1 (de) 1992-01-02

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