EP2185465B1 - Dispositif de levage - Google Patents

Dispositif de levage Download PDF

Info

Publication number
EP2185465B1
EP2185465B1 EP08828809A EP08828809A EP2185465B1 EP 2185465 B1 EP2185465 B1 EP 2185465B1 EP 08828809 A EP08828809 A EP 08828809A EP 08828809 A EP08828809 A EP 08828809A EP 2185465 B1 EP2185465 B1 EP 2185465B1
Authority
EP
European Patent Office
Prior art keywords
band
lifting device
roller
profiled
retracted
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.)
Not-in-force
Application number
EP08828809A
Other languages
German (de)
English (en)
Other versions
EP2185465A2 (fr
Inventor
Pascal Durant
Ralf BRÜCKMANN
Andreas Schmohl
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.)
Duerr Assembly Products GmbH
Original Assignee
Duerr Assembly Products 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 Duerr Assembly Products GmbH filed Critical Duerr Assembly Products GmbH
Publication of EP2185465A2 publication Critical patent/EP2185465A2/fr
Application granted granted Critical
Publication of EP2185465B1 publication Critical patent/EP2185465B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B66F7/10Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks

Definitions

  • the invention relates to a lifting device with at least one telescopic tube or cylinder, consisting of a first and a second annular band, wherein means are provided to arrange the first band spirally transversely orthogonal about a central axis and to arrange the second band wound around itself, wherein the turns of the second band are transversely parallel to the central axis, and to transfer the first band to a retracted stowed position and the second band to a retracted helical position.
  • the invention further relates to the use of such a lifting device.
  • a telescopic tube or cylinder of the type described above is known from US 4,875,660 A or the EP 0 326 910 B1 and is sold under the name "SpiraLift” by PACO SPIRALIFT INC., Quebec, Canada.
  • This purely mechanical telescopic tube is advantageous over conventional pneumatic or hydraulic telescopic devices in that it has a minimum height for a given stroke. In such a spiral lift lifting element, the lifting force and the current consumption are also constant over the entire stroke. In addition, the lifting element is virtually maintenance-free and can be adjusted by hand in emergency operation with an adapter.
  • the US 6,382,358 B1 describes a safety device for a lifting device.
  • the object of the invention is thus to increase the reliability of lifting devices according to the preamble.
  • the lifting device comprises means for preventing a crash in a failure of the telescopic tube or cylinder having a rack and a wave-shaped profile track, both of which are fixed to a fixed part of the lifting device and a rotatably mounted on a vertically movable part of the lifting device pawl having a roller, wherein means for pressing the roller against the Profile track are provided and the pawl is designed to engage in the rack.
  • the invention is based on the finding that even with a lifting device which operates using such telescopic tubes or cylinders, a crash of the lifting device due to a technical failure of the telescopic tube or cylinder is possible, for example when exceeding the maximum allowable load.
  • the inventive means for preventing a crash in case of failure of the telescopic tube or cylinder are provided.
  • the role In normal operation, the role is always on the profile web, which ensures that the pawl does not engage in the rack.
  • a predeterminable vertical speed for example the rated stroke speed
  • the roller lifts off the profile track and the pawl engages in the rack.
  • the speed at which the role of the profile web lifts can be varied by the configuration of the profile sheet and the contact pressure of the role.
  • An alternative embodiment of the invention is that the means for preventing the crash of a rack and a wave-shaped profile track, both of which are attached to a vertically movable part of the lifting device and having a rotatably mounted on a fixed part of the lifting device pawl with a roller Means are provided for pressing the roller against the profiled track and the pawl is designed to engage in the rack.
  • This solution represents the kinematic reversal of the first solution.
  • the means for pressing the roller against the profiled sheet are designed as a counterweight.
  • the contact pressure acting on the roller is defined and can be varied by changing these parameters.
  • the means for pressing the roller against the profiled sheet are formed as a spring.
  • the spring force of the spring is adjustable.
  • chassis installation also called “wedding”
  • the drive and chassis components are added by lifting the workpiece carrier to the body.
  • Many assembly and screwing processes whether manual or automatic, take place after joining from below.
  • the space below the workpiece carrier is required for lifting elements and assembly processes (screws, clips, etc.).
  • the smaller the area required by the lifting device the greater the usable area for the accessibility of the assembly and screwing tools.
  • the lifting device according to the invention is particularly suitable for these applications.
  • the lifting device 1 on a base frame 2.
  • means 3 are for arranging a first band spirally transversely orthogonal about a central axis and arranging a second band wound around itself, with the turns of the second band being transversally parallel to the central axis, and the first band being stacked in a retracted one Position and transfer the second band in a retracted helical position, arranged.
  • the lifting device 1 which is formed in two stages in the present case, has two means for preventing the crash in case of failure of the lifting device.
  • These each include a vertically moving rack 4, a likewise vertically moving profile track 5, which has a wave-shaped profile, and a rotatably mounted, fixed to the fixed part of the lifting device 1 pawl 6 with a roller 7 and a counterweight 8.
  • the rack 4 and Profile track 5 run side by side.
  • the means 3 for preventing the crash function as follows.
  • the attached to the pawl 6 roller 7 is pressed by the counterweight 8 (which could also be replaced by a spring) against the profile web 5 and is always in the process in normal operation always on the profile web 5 at.
  • the roller 7 Only when a certain, defined by the contact pressure speed is exceeded, the roller 7 lifts off from the profile web 5 and the pawl 6 engages the rack 4 and blocks the lifting device 1.
  • the contact pressure can by the mass of the counterweight 8 and the lever be set to a desired level, so that the means 3 for preventing the crash only when the normal speed of the lifting device 1 is exceeded.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Pinball Game Machines (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

L'invention concerne un dispositif de levage comportant au moins un tube ou cylindre télescopique, ainsi qu'une première et une deuxième bande annulaire. Selon l'invention, des moyens servent à disposer la première bande en spirale transversalement et en angle droit autour d'un axe médian et à enrouler la deuxième bande sur elle-même, les enroulements de la deuxième bande étant parallèles transversalement à l'axe médian, ainsi qu'à transférer la première bande dans une position empilée rentrée et la deuxième bande dans une position rentrée en spirale. L'invention porte également sur l'utilisation d'un dispositif de levage de ce type. L'invention vise à augmenter la sécurité de fonctionnement de tels dispositifs de levage. A cet effet, le dispositif de levage de l'invention est pourvu d'un moyen évitant la chute en cas de panne du tube ou cylindre télescopique.

Claims (6)

  1. Dispositif de levage (1) avec au moins un tube ou un cylindre télescopique, composé d'une première et d'une deuxième bande annulaire, des moyens étant prévus pour disposer la première bande en formant une spirale transversalement orthogonalement à un axe central et pour disposer la deuxième bande enroulée sur elle-même, les spires de la deuxième bande étant transversalement parallèles à l'axe central, et la première bande pouvant être amenée dans une position rétractée empilée et la deuxième bande dans une position rétractée en forme de spirale, caractérisé en ce que le dispositif de levage (1) est muni de moyens (4, 5, 6, 7) pour empêcher une chute en cas de défaillance du tube ou du cylindre télescopique, lesdits moyens étant munis d'une tige dentée (4) et d'une trajectoire profilée (5) qui tous les deux sont fixés à une pièce fixe du dispositif de levage (1) et sont munis d'un cliquet d'arrêt (6) avec un rouleau (7), lequel cliquet est logé pivotant sur une partie mobile verticalement du dispositif de levage (1), des moyens étant prévus pour pousser le rouleau (7) contre la trajectoire profilée (5) et le cliquet d'arrêt (6) étant conçue pour s'engrainer dans la tige dentée (4) en cas de dépassement d'une vitesse verticale pouvant être prédéfinie du dispositif de levage.
  2. Dispositif de levage (1) avec au moins un tube ou un cylindre télescopique, composé d'une première et d'une deuxième bande annulaire, des moyens étant prévus pour disposer la première bande en formant une spirale transversalement orthogonalement à un axe central et pour disposer la deuxième bande enroulée sur elle-même, les spires de la deuxième bande étant transversalement parallèles à l'axe central, et la première bande pouvant être amenée dans une position rétractée empilée et la deuxième bande dans une position rétractée en forme de spirale, caractérisé en ce que le dispositif de levage (1) est muni de moyens (4, 5, 6, 7) pour empêcher une chute en cas de défaillance du tube ou du cylindre télescopique, lesdits moyens étant munis d'une tige dentée (4) et d'une trajectoire profilée (5) qui tous les deux sont fixés à une pièce mobile verticalement du dispositif de levage (1) et sont munis d'un cliquet d'arrêt (6) avec un rouleau (7), lequel cliquet est logé pivotant sur une partie fixe du dispositif de levage (1), des moyens étant prévus pour pousser le rouleau (7) contre la trajectoire profilée (5) et le cliquet d'arrêt (6) étant conçue pour s'engrainer dans la tige dentée (4) en cas de dépassement d'une vitesse verticale pouvant être prédéfinie du dispositif de levage.
  3. Dispositif de levage selon la revendication 1, caractérisé en ce que les moyens pour appuyer le rouleau (7) contre la trajectoire profilée (5) sont conçus sous la forme d'un contrepoids (8).
  4. Dispositif de levage selon la revendication 1 ou 2, caractérisé en ce que les moyens pour appuyer le rouleau (7) contre la trajectoire profilée (5) sont conçus sous la forme d'un ressort.
  5. Dispositif de levage selon la revendication 4, caractérisé en ce que la force de ressort du ressort peut être ajustée.
  6. Utilisation d'un dispositif de levage selon l'une des revendications 1 à 5 dans l'industrie automobile, notamment pour le montage du châssis.
EP08828809A 2007-08-29 2008-08-26 Dispositif de levage Not-in-force EP2185465B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710041052 DE102007041052A1 (de) 2007-08-29 2007-08-29 Hubvorrichtung
PCT/DE2008/001402 WO2009026899A2 (fr) 2007-08-29 2008-08-26 Dispositif de levage

Publications (2)

Publication Number Publication Date
EP2185465A2 EP2185465A2 (fr) 2010-05-19
EP2185465B1 true EP2185465B1 (fr) 2012-07-04

Family

ID=40289355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08828809A Not-in-force EP2185465B1 (fr) 2007-08-29 2008-08-26 Dispositif de levage

Country Status (5)

Country Link
EP (1) EP2185465B1 (fr)
CN (1) CN101795958B (fr)
DE (1) DE102007041052A1 (fr)
ES (1) ES2391531T3 (fr)
WO (1) WO2009026899A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009055768A1 (de) * 2009-11-25 2011-05-26 Lödige Fördertechnik GmbH Vorrichtung und Verfahren zur Absicherung, insbesondere des Absturzes, von Aufzügen und Hubeinrichtungen
CN111792555A (zh) * 2019-11-18 2020-10-20 苏州三鼎升降机有限公司 一种具有保护系统的液压升降机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080751B (de) * 1954-09-09 1960-04-28 Joyce Cridland Company Ruecklaufsperre fuer Hebebuehnen
DE6905457U (de) * 1969-02-11 1969-12-11 Zipperer B Fa Hebebuehne mit sicherungsvorrichtung
AT359694B (de) * 1979-04-13 1980-11-25 Laupper Anton Hydraulische hebevorrichtung
JPH0518389Y2 (fr) * 1986-07-30 1993-05-17
EP0326910B1 (fr) 1988-02-02 1991-09-18 Pierre Gagnon Vérin de poussée
US4875660A (en) 1988-02-02 1989-10-24 Pierre Gagnon Push actuator
US6382358B1 (en) * 2000-10-31 2002-05-07 Jeffrey Scott Kritzer Safety lock device for automobile lifts
CN2600312Y (zh) * 2002-09-20 2004-01-21 刘光荣 驾驶室液压翻转器
US7213796B2 (en) * 2004-07-01 2007-05-08 Gestion Laforest Inc. Linear actuator with releasably interlocking bands

Also Published As

Publication number Publication date
CN101795958B (zh) 2013-05-29
WO2009026899A2 (fr) 2009-03-05
CN101795958A (zh) 2010-08-04
ES2391531T3 (es) 2012-11-27
DE102007041052A1 (de) 2009-03-05
EP2185465A2 (fr) 2010-05-19
WO2009026899A3 (fr) 2009-07-30

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