EP0052119A1 - Dispositif d'extension - Google Patents

Dispositif d'extension

Info

Publication number
EP0052119A1
EP0052119A1 EP19810901287 EP81901287A EP0052119A1 EP 0052119 A1 EP0052119 A1 EP 0052119A1 EP 19810901287 EP19810901287 EP 19810901287 EP 81901287 A EP81901287 A EP 81901287A EP 0052119 A1 EP0052119 A1 EP 0052119A1
Authority
EP
European Patent Office
Prior art keywords
cross
lifting
yoke
bars
transmission
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.)
Withdrawn
Application number
EP19810901287
Other languages
German (de)
English (en)
Inventor
Wilfred Simonsen
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.)
BACKTEMANS PATENTER AB
Original Assignee
BACKTEMANS PATENTER AB
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
Priority claimed from SE8003888A external-priority patent/SE8003888L/xx
Application filed by BACKTEMANS PATENTER AB filed Critical BACKTEMANS PATENTER AB
Publication of EP0052119A1 publication Critical patent/EP0052119A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/663—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for containers

Definitions

  • the present invention refers generally to lifting devices for standardized goods containers, and more closely to a lifting yoke or a lifting frame for handling such containers .
  • the present invention refers, for example, to the type of lifting yokes described in Swedish published specification 7407425-3 and comprising a central frame unit which is supported, for example, by a crane or other lifting device, generally by the aid of cables. Extending from the central frame unit are two pairs of substantilly parallel beams , one pair in either direction. The outer ends of the . corresponding beam pairs are mutually connected ty cross-bars.
  • the beams extending from the central frame unit are adapted to be extended and retracted in relation thereto for adjusting the mutual spacing between the cross-bars to enable the lifting yoke to be adapted to various container sizes.
  • the cross-bars are provided with downwardly extending rotary blocks adapted to be inserted into the upper corner boxes of the containers and locked therein to enable the containers to be lifted.
  • At the outer edges of the cross bars there are normally upwardly and downwardly swingable feeler arms guiding the lifting yoke into correct position during lowering towards the containers and thus, causing the rotary blocks correctly to meet the openings of the corner boxes in question.
  • the containers are deformed and that the rotary blocks encounter difficulties to meet the holes of all the four corner boxes.
  • the adjustment of the lifting yoke is so exact that already displacements amounting to some few milimetres between the four corner boxes may cause the lifting blocks to meet only two or thr-ee of the openings of the corner boxes. In such cases the lifting yoke is blocked so that a lifting cannot be performed. Accordingly, it is desirable that the yoke is slightly flexible in order to be able to compensate for deviations in the spacing between the corner boxes of a container.
  • the object of the present invention is to remove the above problems and this object has been reached by a device of the type referred to in the claims from which also what- is especially characterizing the invention is clear.
  • Fig. 1 is a schematic upper plane view of a lifting yoke constructed according to the invention
  • Fig. 2 is a schematic view, partially in section, through the lifting yoke shown in Fig. 1 showing a preferred embodiment of the invention
  • Fig. 3 is a broken, partially sectioned view showing a detail of the invention.
  • the lifting yoke 1 shown in Fig. 1 comprises a central frame unit 2 having pairs of side beams 3 , 4 adapted to be extended and retracted in relation to the frame unit 2. At the outer ends said cairs of side beams 3 , 4 are connected by cross-bars 5 , 6 which at their outer ends support devices 7 including lifting blocks and feeler arms.
  • the outward and inward shifting of the pairs of side beams 3, 4 is performed with the aid of specific operating arms 8, 9- These are guided in the central frame unit 2 and attached substantially centrally of the cross-bars 5 , 6.
  • the operation is performed by the aid of a motor 18 driving one 9 of the operating arms and this movement being transferred to the other operating arm 8 by su i means as chains.
  • Feeler means (not shown) mark the various adjusting positions of the lifting yoke which thereby is ad justed to a length corresponding to the length of the container in question.
  • FIG. 2 there is schematically shown an arrangement of the resilient mounting. From the cross-bars 5 and 6 there extend operating arms 8, 9 towards and above each other in the same way as in connection with the lifting yoke in acorrdance with Fig. 1.
  • a resilient mounting 20 between a looped chain 21 and each operating arm 8, 9 is at the ends of the operating arms.
  • the chain 21 runs around two opposite sprocket wheels 22 , 23 one at each end of the central frame unit. One of said sprocket wheels 22 , 23 is driven for the movement of the chain 21 and accordingly for the adjustment of the yoke.
  • the resilient mounting 20 is clear from Fig. 3.
  • a cross-piece 24 secured by welding.
  • Said cross-piece 24 extends from the qperating arm in the direction towards the chain 21 and is in the extending portion provided with a thorough opening 25.
  • a rod 26 extends through said opening 25 and each end thereof is connected to the ch-ain 21.
  • the rod 26 is threaded and two pairs of nuts 27, 28 are screwed onto the rod one pair on each side of the cross-piece 24.
  • Figs. 2 and 3 may be used separately in the lifting yoke or in combination with any known structure.
  • the embodiment in accordance with Figs. 2 and 3 is also of the advantage that it is easy to mount in connection with repair or altering of a prior yoke.
  • the lifting block still can penetrate into the openings of the corner boxes under the action of the weight of the yoke.
  • the inserting ends of the lifting blocks are slightly conical the insertion into the corner boxes in contact with the walls of the openings will produce a tendency towards a shifting of the cross-bars 5, 6 outwardly or inwardly in the longitudinal direction of the yoke.
  • spring action in the attachments 20 such a limited moment in the plane of the yoke enables also deformed containers to be lifted without specific rreasures.

Landscapes

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

Abstract

Joug de levage pour conteneurs et analogues. De tels jougs de levage comprennent une unite de cadre central pouvant etre suspendue dans un dispositif de levage dont l'unite de cadre soutient les traverses (5, 6) pouvant se deplacer vers ladite unite et a partir de celle-ci, les deplacements de ces traverses etant provoques par l'action d'un dispositif par l'intermediaire d'une transmission. Les traverses (5, 6) soutiennent a leurs extremites exterieures des dispositifs comprenant des blocs de levage. Entre l'unite de cadre et chaque traverse (5, 6) sont disposes des bras d'actionnement (8, 9) etendus. Au moins un moyen elastique (20) est compris dans la transmission entre le dispositif (18) et une traverse, le moyen elastique (20) permettant un mouvement limite de la traverse (5, 6) dans le plan du joug par rapport a la position determinee a l'aide du dispositif et de la transmission.
EP19810901287 1980-05-23 1981-05-22 Dispositif d'extension Withdrawn EP0052119A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8003888 1980-05-23
SE8003888A SE8003888L (sv) 1979-10-31 1980-05-23 Lyftok

Publications (1)

Publication Number Publication Date
EP0052119A1 true EP0052119A1 (fr) 1982-05-26

Family

ID=20341033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810901287 Withdrawn EP0052119A1 (fr) 1980-05-23 1981-05-22 Dispositif d'extension

Country Status (2)

Country Link
EP (1) EP0052119A1 (fr)
WO (1) WO1981003323A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE449217B (sv) * 1984-03-23 1987-04-13 Dynatrans Technology Ltd Lyftok for containers
DE3432539A1 (de) * 1984-09-05 1986-03-06 Peiner Maschinen- Und Schraubenwerke Ag, 3150 Peine Verstellspreader
FR2659637B1 (fr) * 1990-03-14 1992-07-24 Cosne Ind Sg Dispositif de levage pour conteneurs.
EP0646539B1 (fr) * 1993-10-01 2000-01-19 Elmhults Konstruktions AB Cadre de préhension de container
GB2294027B (en) * 1994-10-13 1997-12-03 Natsteel Engineering Pte Ltd A shock absorption assembly for a spreader
SE535156C2 (sv) 2010-01-14 2012-05-02 Elme Spreader Ab Linstyrt containerok
SE534597C2 (sv) 2010-02-24 2011-10-18 Cargotec Sweden Ab Containerlyftok med kollisionsskyddad drivning av teleskoprörelse hos containerlyftokets balkar
MY198132A (en) * 2016-02-01 2023-08-07 Elme Spreader Ab Spreader for lifting intermodal container

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1150031A (en) * 1967-03-20 1969-04-30 British Railways Board Improvements in or relating to Container Lifting Frames
DE1556324C3 (de) * 1967-07-11 1974-08-01 Juenkerather Maschinenbau Gmbh, 5532 Juenkerath Vorrichtung zum Umschlagen von Containern
US3677599A (en) * 1970-11-06 1972-07-18 Vickers Haskins Pty Ltd Self aligning latching mechanism on a cargo container spreader
SE358368B (fr) * 1971-11-26 1973-07-30 Lidhults Mekaniska Verkstad Ab
DE2600946A1 (de) * 1976-01-13 1977-07-14 Boge Gmbh Dynamisch beanspruchte wellenfeder, insbesondere von hydraulischen teleskopschwingungsdaempfern fuer kraftfahrzeuge
DE2822595A1 (de) * 1978-05-24 1979-11-29 Roehrs Werner Dr Kg Feder fuer speicherung und rueckgabe grosser kraefte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8103323A1 *

Also Published As

Publication number Publication date
WO1981003323A1 (fr) 1981-11-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820803

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SIMONSEN, WILFRED