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EP0524271B1 - Dispositif de levage de charge - Google Patents

Dispositif de levage de charge Download PDF

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Publication number
EP0524271B1
EP0524271B1 EP92900406A EP92900406A EP0524271B1 EP 0524271 B1 EP0524271 B1 EP 0524271B1 EP 92900406 A EP92900406 A EP 92900406A EP 92900406 A EP92900406 A EP 92900406A EP 0524271 B1 EP0524271 B1 EP 0524271B1
Authority
EP
European Patent Office
Prior art keywords
load
lifting device
arms
locking
securing
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
EP92900406A
Other languages
German (de)
English (en)
Other versions
EP0524271A1 (fr
Inventor
Guido Baumgartner
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.)
Heppenstall Holding AG
Original Assignee
Heppenstall Holding AG
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 Heppenstall Holding AG filed Critical Heppenstall Holding AG
Publication of EP0524271A1 publication Critical patent/EP0524271A1/fr
Application granted granted Critical
Publication of EP0524271B1 publication Critical patent/EP0524271B1/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
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means

Definitions

  • the invention relates to a load lifting device according to the preamble of claim 1.
  • Load lifting devices are known for example from DE-PS 17 46 42 in various forms.
  • the load securing devices consist of brackets which can be pivoted transversely to the axis of the supporting beam from a rest position, in which the securing arms are located above the supporting beam, into the securing position, in which the securing arms are located under the attached load. It is disadvantageous that on the one hand the swiveling path of the securing arms from the upper position into the lower position takes up a large amount of lateral space.
  • the securing arms are only effective at a certain distance from the lifting magnet, so that there may be a free space between the load and the securing arm, so that if the magnetic force fails, the load falls onto the securing arm, which can damage the securing arm and the securing device .
  • the above disadvantages are partly remedied in that securing arms can be swung out and in about a vertical axis lying transversely to the electromagnet from an exemption outside the electromagnet to a securing position transversely to the electromagnet .
  • the securing arms have the above-mentioned disadvantageous free distance from the attached load.
  • DE 31 12 348 A1 describes a load lifting device which has a support beam with two load lifting magnets and a load securing device.
  • the latter consists of two rigid safety brackets, each of which has an upper, essentially horizontal support, at the ends of which vertically downwardly extending webs are formed, which in turn have short securing arms which, in the securing position, engage under an attached load.
  • the safety bars are pivotally attached to a lifting device.
  • This load securing device has a number of decisive disadvantages. Due to the rigid design of the safety bars, they require a relatively large amount of space when swiveling out to the side; in order to limit the latter, the securing arms can only be short, so that they cannot reach under the attached load over the entire width.
  • the load lifting device is therefore only suitable for individual slabs, but not for holding bundles that would fall through between the safety arms if the load lifting magnets failed.
  • the rigid design of the safety bars limits the use of the load lifting device to very narrow dimensions of the slabs.
  • the requirement that the safety bar with its upper horizontal support must rest on the supporting beam in the securing position also works in this sense. This does not result in an adaptation of the rigid securing bracket to different load dimensions, nor is the securing arm placed on the load, so that a free gap remains between the load and the securing arm, which is associated with the disadvantages mentioned at the outset.
  • the object of the invention is to design a load lifting device of the type mentioned in such a way that the load securing device manages with a minimum of lateral clearance, ensures optimal securing of the attached load and nevertheless permits a relatively light construction.
  • the securing arms are fastened to support columns which are driven to be vertically liftable and lowerable results in an optimal vertical force application for a load to be secured, so that the load securing device can be constructed relatively easily. Nevertheless, a secure hold of the attached load is guaranteed, since the securing arms are moved in the securing position against the attached load and therefore there is no play between the attached load and the securing arms.
  • the load securing device also requires only a small lateral clearance next to the supporting beam, since the securing arms can be pivoted about the axes of the supporting columns from the release parallel to the supporting beam into the securing position transversely to the supporting beam.
  • the support arms ensure a larger free space for receiving an attached load in the pivoted-out state.
  • the support columns are brought into contact laterally with the attached load, so that lateral play between the attached load and the support column is also avoided, which further improves the securing effect.
  • the lifting device can be designed as a screw spindle or a toothed rack. However, it is more advantageous to design the lifting device according to claim 2.
  • a particularly simple and safe configuration of the load lifting device results from claim 3, since with the pivoting out and in of the support arms and thus the support columns the pivoting out and in of the securing arms is also accomplished, so that no additional drive is required for this. It is also expedient to guide the support columns in guide arms, whereby the stability of the load securing device is improved.
  • the load lifting device can only have one load securing device, but expediently, two load securing devices are arranged on the supporting beam.
  • a particularly simple design and synchronization of the drive of the load securing devices results from claim 7.
  • the load lifting device has a supporting beam 2 which is formed from two C-shaped carriers 4 which are connected to one another.
  • a supporting beam 2 which is formed from two C-shaped carriers 4 which are connected to one another.
  • two articulated eyelets 6 are arranged for attaching the support beam to a support cable.
  • Two lifting magnets 8a, 8b are articulated on the underside of the supporting beam 2.
  • the support beam 2 is equipped with two load securing devices 10a, 10b.
  • the load securing devices 10a, 10b contain a lifting device 12 which is fastened to the supports 4 and which is formed from telescopic pipes 14, 16, the outer pipe 14 being fastened to the supports 4.
  • a hydraulic piston / cylinder unit 18 for driving the lifting device is arranged within the inner tube 16.
  • the inner tube 16 carries at the upper end a cylindrical head 20 on which two support arms 22a, 22b are pivotally arranged. At their outer ends, these in turn have support columns 24a, 24b which are arranged such that they can rotate, and securing arms 26a, 26b are fastened to their lower ends.
  • the support columns 24a, 24b are also guided on guide arms 28a, 28b, which are pivotably connected to the frame, ie the outer tube 14 of the lifting device 12.
  • Each support column 24a, 24b is provided near the support arm 22a, 22b with a bracket 30a, 30b, on which coupling rods 32a, 32b are articulated, at corresponding pivot points 34a, 34b are attached to the head 20 of the lifting device.
  • the articulation points 34a, 34b are rigidly connected to the head 20.
  • the arrangement is such that the securing arms 26a, 26b point perpendicular to the vertical plane of the supporting beam when the supporting arms 22a, 22b and guide arms 28a, 28b are pivoted in, ie assume the securing position, as shown on the left-hand side of FIG. 3.
  • the coupling connection ensures that the securing arms 26a, 26b are aligned parallel to the vertical plane of the support beam, as shown on the right-hand side of FIG. 3.
  • a central drive 36 in the form of a piston / cylinder unit is also used to pivot the support arms 22a, 22b and the guide arms 28a, 28b in and out. arranged on the outer tube 14 of the lifting device 12 and aligned parallel to the support beam 2.
  • Two coupling rods 40a, 40b are articulated on the piston rod 38 of the piston / cylinder unit 36 and are articulated to the guide arms 28a, 28b. Only one load securing device 10a is equipped with this drive 36, the other load securing device 10b being connected to the first load securing device 10a by means of drive rods 42a, 42b.
  • the coupling rods connect the guide arms 28a, 28b of the load securing devices 10a, 10b to one another.
  • the operation is as follows.
  • the load securing devices 10a, 10b are in the release shown in FIG. 3 on the right-hand side, ie the lifting device 12 is lowered, the support arms 22a, 22b and the guide arms 28a, 28b are swung out and the securing arms 26a, 26b are parallel to the support beam 2.
  • the load securing devices 10a, 10b are pivoted by means of the drive 36 into the securing position shown on the left-hand side of FIG.
  • the piston / cylinder unit 36 swivels the guide arms 28a, 28b against the supporting beam 2
  • the coupling rods 32a, 32b simultaneously pivot the support columns 24a, 24b and thereby align the securing arms 26a, 26b transversely to the vertical plane of the support beam 2.
  • the piston / cylinder unit 18 of the load lifting device 12 is then actuated and the securing arms 26a, 26b are raised until they are in contact with the load attached to the load lifting magnet 8a, 8b.
  • the attached load is unlocked in the reverse order of the movement sequence of the load securing devices 10a, 10b described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

Le dispositif de levage de charge présente une poutre (2) sur la face inférieure de laquelle sont disposés des aimants de levage de charge (8a, 8b). La poutre (2) est équipée de deux dispositifs de maintien des charges (10a, 10b) qui présentent, des deux côtés de la poutre (2), des colonnes verticales (24a, 24b) pouvant être levées et abaissées. Ces colonnes sont montées pivotantes sur des bras de support supérieurs (22a, 22b) et présentent, sur leur extrémité inférieure, des bras de maintien (26a, 26b) pivotant transversalement par rapport au plan vertical pour assurer un maintien. Le dispositif de levage (12) permet de placer les bras de maintien (26a, 26b) contre une charge suspendue aux aimants de levage de charge (8a, 8b).

Claims (7)

  1. Dispositif de levage de charge, comportant un électro-aimant de levage (8a, 8b) et un dispositif de protection de charge (10a, 10b), qui comporte des potences (24a, 24b), verticales, disposées des deux côtés de l'électro-aimant de levage (8a, 8b), et pouvant, à l'aide d'un système d'entraînement (36), pivoter chacune autour d'un axe vertical, potences contre chacune desquelles sont disposés des bras de sécurité (26a, 26b), qui, en position de sécurité, et en regard l'un de l'autre, saisissent en totalité une charge suspendue en passant sous cette dernière, et qui, en position libre, sont orientés à l'extérieur de la charge suspendue, caractérisé en ce que chacune des potences (24a, 24b) pouvant pivoter autour des axes verticaux est guidée contre des bras de guidage (28a, 28b), pouvant pivoter vers l'intérieur et vers l'extérieur autour d'un autre axe vertical, et est chacune fixée à la partie supérieure de bras de support (22a, 22b), qui pour leur part sont fixés, de façon à pouvoir pivoter autour de l'autre axe vertical, à un dispositif de levage (12), lequel s'appuie contre une poutre de support (2) portant des électro-aimants de levage (8a, 8b) sur son côté inférieur, et qui fait appuyer contre le côté inférieur de la charge les bras de sécurité (26a, 26b), qui en position de sécurité regardent l'un vers l'autre, les bras de sécurité (26a, 26b) étant, en position libre, à l'extérieur de la zone de manoeuvre de la charge, orientés parallèlement à la poutre de support (2).
  2. Dispositif de levage de charge selon la revendication 1, caractérisé en ce que le dispositif de levage (12) est conçu comme une colonne télescopique (14, 16), qui de préférence peut être entrainée par un vérin hydraulique à piston/cylindre (18).
  3. Dispositif de levage de charge selon la revendication 1, caractérisé en ce que les potences (24a, 24b) sont disposées de façon à pouvoir tourner contre les bras de support (22a, 22b), et comportent chacune une console (30a, 30b), qui sont reliées par l'intermédiaire de barres de couplage (32a, 32b) au dispositif de levage (12) de telle sorte que, quand les potences (24a, 24b) pivotent contre la poutre de support (2), les bras de sécurité (26a, 26b) puissent pivoter, à partir d'une position libre parallèle à la poutre de support (2), jusqu'à la position de sécurité, transversale à la poutre de support (2) et en-dessous de cette dernière.
  4. Dispositif de levage de charge selon l'une des revendications 1 à 3, caractérisé en ce que les bras de guidage (28a, 28b) pouvant pivoter vers l'intérieur et vers l'extérieur sont articulés au bâti (14) du dispositif de levage (12).
  5. Dispositif de levage de charge selon la revendication 4, caractérisé en ce que le dispositif de protection de charge (10a) possède un entraînement central (36), de préférence un ensemble piston/cylindre, qui, par l'intermédiaire de barres de couplage (40a, 40b), agit sur les bras de guidage (28a, 28b).
  6. Dispositif de levage de charge selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend au moins deux dispositifs de protection de charge (10a, 10b).
  7. Dispositif de levage de charge selon les revendications 5 et 6, caractérisé en ce qu'un dispositif de protection de charge (10a) comprend un système d'entraînement (36), et l'autre dispositif de protection de charge (10b) est couplé au premier en entraînement, des bras de guidage (28a, 28b) de préférence présents étant reliés l'un à l'autre au moyen d'une barre de couplage (42a, 42b).
EP92900406A 1991-02-08 1991-12-16 Dispositif de levage de charge Expired - Lifetime EP0524271B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH396/91 1991-02-08
CH39691 1991-02-08
PCT/CH1991/000269 WO1992013792A1 (fr) 1991-02-08 1991-12-16 Dispositif de levage de charge

Publications (2)

Publication Number Publication Date
EP0524271A1 EP0524271A1 (fr) 1993-01-27
EP0524271B1 true EP0524271B1 (fr) 1995-08-16

Family

ID=4186064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92900406A Expired - Lifetime EP0524271B1 (fr) 1991-02-08 1991-12-16 Dispositif de levage de charge

Country Status (4)

Country Link
US (1) US5310304A (fr)
EP (1) EP0524271B1 (fr)
DE (1) DE59106277D1 (fr)
WO (1) WO1992013792A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304679B (en) * 1995-08-25 1999-06-30 Chep Uk Ltd Handling apparatus and system
US6082080A (en) * 1998-10-15 2000-07-04 Abb Flexible Automation, Inc. Device for mechanically grasping and palletizing rectangular objects
FR2859197B1 (fr) 2003-09-02 2006-10-13 Commissariat Energie Atomique Dispositif de manutention de fut
EP4177023A1 (fr) * 2021-11-03 2023-05-10 Open Mind Ventures, S.L.U. Dispositif et procédé de manipulation d'éléments

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE174642C (fr) *
DE290886C (fr) *
US762759A (en) * 1904-02-16 1904-06-14 Wolfgang Reuter Magnetic grapple.
US1564655A (en) * 1924-06-23 1925-12-08 Bernhard W Westbo Lumber-loading device
US1833545A (en) * 1929-11-22 1931-11-24 Cleveland Crane Eng Pipe grab
US1957719A (en) * 1933-04-06 1934-05-08 Rotary Steel Company Lifting device
SU131480A1 (ru) * 1960-02-29 1960-11-30 Л.А. Подольский Захват дл листовой стали
FR1287442A (fr) * 1961-01-30 1962-03-16 Fenwick Manutention Ste Indle Appareil de levage destiné à collaborer avec un engin de manutention
DE1289640B (de) * 1966-02-08 1969-02-20 Wilhelm Scheidt Kg Maschinenfa Greif- und Tragvorrichtung fuer Bleche
US3606056A (en) * 1968-01-25 1971-09-20 Skagit Corp Straplift loading system
US3558178A (en) * 1968-12-12 1971-01-26 Glenn E Taylor Hydraulic rail lifter
CA1146993A (fr) * 1980-12-08 1983-05-24 Davide Valania Dispositif de manutention de tiges et de tuyaux en acier groupes en faisceau
DE3112348A1 (de) * 1981-03-28 1982-10-07 Eisenbau Essen GmbH, 4300 Essen Magnettraverse fuer stahlhalbzeug und mit sicherheitsbuegeln
DE3710479A1 (de) * 1987-03-30 1988-10-13 Bosch Gmbh Robert Lineareinheit zum umsetzen von gegenstaenden

Also Published As

Publication number Publication date
EP0524271A1 (fr) 1993-01-27
US5310304A (en) 1994-05-10
WO1992013792A1 (fr) 1992-08-20
DE59106277D1 (de) 1995-09-21

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