EP0059228B1 - Dispositif de sécurité pour organes de saisie en forme de crochets d'appareils de levage - Google Patents

Dispositif de sécurité pour organes de saisie en forme de crochets d'appareils de levage Download PDF

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Publication number
EP0059228B1
EP0059228B1 EP81101431A EP81101431A EP0059228B1 EP 0059228 B1 EP0059228 B1 EP 0059228B1 EP 81101431 A EP81101431 A EP 81101431A EP 81101431 A EP81101431 A EP 81101431A EP 0059228 B1 EP0059228 B1 EP 0059228B1
Authority
EP
European Patent Office
Prior art keywords
load
safety device
safety
wire rope
hook
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
Application number
EP81101431A
Other languages
German (de)
English (en)
Other versions
EP0059228A1 (fr
Inventor
Peter Ing. Grad. Hoyer
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.)
Pfeifer Seil- und Hebetechnik & Co GmbH
Original Assignee
Pfeifer Seil- und Hebetechnik & Co GmbH
Pfeifer Seil- und Hebetechnik & Co 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 Pfeifer Seil- und Hebetechnik & Co GmbH, Pfeifer Seil- und Hebetechnik & Co GmbH filed Critical Pfeifer Seil- und Hebetechnik & Co GmbH
Priority to DE8181101431T priority Critical patent/DE3169940D1/de
Priority to EP81101431A priority patent/EP0059228B1/fr
Priority to AT81101431T priority patent/ATE12758T1/de
Publication of EP0059228A1 publication Critical patent/EP0059228A1/fr
Application granted granted Critical
Publication of EP0059228B1 publication Critical patent/EP0059228B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • 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
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
    • 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
    • B66C1/666—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 connection to anchor inserts embedded in concrete structures

Definitions

  • the invention relates to a safety device for hook-like lifting means on hoists, in which a displaceable securing member assumes a securing position under the action of a spring, in which the hook mouth of the lifting means is closed in order to prevent the load from being unintentionally hooked in or out and wherein the securing member is by means of a flexible traction means and an actuating element is adjustable by hand in an open position.
  • DE-A 2 552 387 shows a safety device with a safety pin which can be operated via a traction means and a deflection device by means of an actuating lever.
  • the operating lever can also be moved by hand.
  • the traction means of this document can also be designed as a thin wire rope.
  • the securing member will only reach the securing position with a certain probability with a certain spring force, which in turn can be a hindrance when opening.
  • the invention is based on the safety device of the type described in the introduction and proposes that the flexible traction means is a stiff but bendable wire rope piece, which extends without deflection approximately along the sling means, with one end into the securing member designed as a sleeve used and fixed by deformation of the sleeve and held in position.
  • the design according to the invention has the considerable advantage that the safety device does not open unintentionally in any operating situation. It is also not possible for the load to catch unintentionally. The sliding arrangement and the spring force prevent this.
  • an opening process can be carried out easily, it not being necessary to handle the hook mouth, but the operator operates the actuating handle at a sufficient distance from the hook mouth.
  • the main design of the sling means 1 corresponds to that device which is described in the European patent application 0 003 561.
  • the stop means 1 comprises the eyelet-like upper part 13 and the lower part 14, the Ha-1 " enmaul 4 being molded into the lower part.
  • the parts 13 and 14 are made of relatively high-quality castings.
  • the invention is not only applicable to a lifting device according to the drawing, but also to other lifting devices of similar design, crane hooks or the like, which are concerned with securing a load suspended in a hook in such a way that unintentional disconnection of the lifting device and the load or unintentional hooking of the sling into the load is excluded.
  • a bore 10 is in the lifting means 1 introduced, in a suitable direction to ensure that the safety member 2 closes the hook jaw 4 in the closed position.
  • the bore 10 receives the socket 9, which is pressed in, for example, and the safety member 2 is guided in the socket 9.
  • the bushing 9 has a press fit in the bore 10
  • the safety element in the bushing 9 has a comparatively large clearance, so that easy mobility is always ensured, even when contaminated, etc.
  • the safety member 2 is designed in the upper part as a sleeve, so has a bore 15 into which the lower end 7 of the wire rope piece 5 is inserted. A compression or deformation 17 of the upper end of the safety element 2 ensures that the wire rope piece 5 is held securely in the safety element 2.
  • the lower part of the safety element 2 is surrounded by the spring 3, which is supported on the bush 9 and on a cross pin 11 acting as an abutment and which ensures that the safety element assumes the closed position.
  • the operating handle 6 is attached, which is designed as a toggle.
  • This handle 6 has a bore into which the end 8 is inserted and a corresponding connection with the wire rope piece is also obtained by appropriate deformation of the operating handle.
  • the wire rope piece 5 extends essentially along the sling means, so it protrudes only slightly from the wire rope piece.
  • the wire rope piece thus does not prevent, for example, if a connecting means reaches to a hoist through the eyelet 16 of the upper part 13.
  • the wire rope piece and the operating handle can dodge sufficiently.
  • the actuating handle 6 is arranged in this way or the length of the wire rope piece 5 is selected such that the actuating handle comes into the vicinity of the crossbar 12 of the upper part 13.
  • the operator thereby gains a support on the crosspiece 12 for the operating hand when the operating handle 6 is pulled upwards.
  • the safety device can be operated with one hand, while, for example, the operator hangs the load, a rope loop or the like into the hook mouth with the other hand. This eliminates the possibility of accidents during the hanging process.

Landscapes

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

Claims (4)

1. Dispositif de sécurité pour des organes de préhension (1) sur des engins de levage, dans lequel un organe de sécurité (2) déplaçable prend sous l'action d'un ressort une position de sécurité, dans laquelle l'ouverture (4) du crochet de l'organe de préhension est fermée pour exclure tout accrochage ou décrochage accidentel de la charge, et dans lequel l'organe de sécurité peut être amené à la main en position ouverte au moyen d'un organe de traction flexible (5) et d'un élément d'actionnement (6), caractérisé en ce que l'organe de traction flexible est une section de câble rigide, mais pouvant toutefois être courbée (5), qui s'étend sans renvoi sensiblement le long de l'organe de préhension, qui est introduite par une de ses extrémités (7) dans l'organe de sécurité réalisé sous forme de douille (2) et être bloquée et maintenue en position par déformation de la douille.
2. Dispositif de sécurité selon la revendication 1, caractérisé par un manchon de guidage (9) pour l'organe de sécurité (2) en forme de tige, lequel manchon de guidage est entré à force dans un alésage (10) de l'organe de préhension (1), le ressort (3) étant réalisé en tant que ressort hélicoïdal qui entoure l'organe de sécurité et s'appuie par une de ses extrémités sur le manchon de guidage et par l'autre extrémité sur une butée (11) de l'organe de sécurité.
3. Dispositif de sécurité selon la revendication 1 ou la revendication 2, caractérisé par une manette (6) en tant que poignée d'actionnement, qui est entrée à force sur l'extrémité libre (8) de la section de câble (5).
4. Dispositif de sécurité selon la revendication 3, caractérisé en ce que la poignée d'actionnement (6) est disposée au voisinage d'une partie transversale (12), d'une nervure transversale ou l'analogue de l'organe de préhension (1), qui offre un appui à la main qui effectue la manoeuvre.
EP81101431A 1981-02-27 1981-02-27 Dispositif de sécurité pour organes de saisie en forme de crochets d'appareils de levage Expired EP0059228B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8181101431T DE3169940D1 (en) 1981-02-27 1981-02-27 Safety device for hook-shaped load-engaging elements of lifting devices
EP81101431A EP0059228B1 (fr) 1981-02-27 1981-02-27 Dispositif de sécurité pour organes de saisie en forme de crochets d'appareils de levage
AT81101431T ATE12758T1 (de) 1981-02-27 1981-02-27 Sicherheitseinrichtung fuer hakenartige anschlagmittel an hebezeugen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81101431A EP0059228B1 (fr) 1981-02-27 1981-02-27 Dispositif de sécurité pour organes de saisie en forme de crochets d'appareils de levage

Publications (2)

Publication Number Publication Date
EP0059228A1 EP0059228A1 (fr) 1982-09-08
EP0059228B1 true EP0059228B1 (fr) 1985-04-17

Family

ID=8187591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101431A Expired EP0059228B1 (fr) 1981-02-27 1981-02-27 Dispositif de sécurité pour organes de saisie en forme de crochets d'appareils de levage

Country Status (3)

Country Link
EP (1) EP0059228B1 (fr)
AT (1) ATE12758T1 (fr)
DE (1) DE3169940D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529012C2 (de) * 1985-08-13 1995-10-26 Stolberger Metallwerke Gmbh C-förmig ausgebildete Lastaufnahmeeinrichtung zum Transport von Ringbunden
NO321374B1 (no) 2004-04-06 2006-05-02 Per Sviland Anordning ved loftekrok
CN102556836A (zh) * 2011-12-02 2012-07-11 常熟市浩通市政工程有限公司 粗纱机安全吊钩
US10458460B1 (en) 2017-08-22 2019-10-29 Allan A. Fox Spring-loaded safety latch release for power line hook

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE33393C (de) * GEBRÜDER LEVIN in Braunschweig Karabinerhaken
GB149041A (en) * 1919-05-01 1920-08-03 William James Oliver Improvements in lifting or sling hooks
US1637209A (en) * 1925-05-16 1927-07-26 Woods Bert Elevator
DE958152C (de) * 1951-03-20 1957-02-14 Alfawerk Gauting G M B H Spezi Greiferschloss zum Einhaengen von Lasttraegern wie Greifern oder Lastgefaessen, insbesondere fuer landwirtschaftliche Aufzuege
DE1625869A1 (de) * 1967-10-11 1970-08-20 Norco Inc Loesbarer Klammerverschluss
DE1808988A1 (de) * 1968-11-15 1970-06-11 Lorenz Kesting Vorrichtung und Verfahren zum Manipulieren derselben fuer den Transport von Stahlbetonraumkoerpern,insbesondere von Stahlbetonfertiggaragen
DE2240171C3 (de) * 1972-08-16 1975-06-05 Frimeda Metall- Und Drahtwarenfabrik Siegfried Fricker, 7131 Wiernsheim Transportanker
DE2552387A1 (de) * 1975-11-22 1977-05-26 Haeussler Ernst Vorrichtung zum manipulieren von betonfertigteilen
DE2610195A1 (de) * 1976-03-11 1977-09-22 Haeussler Ernst Vorrichtung zum manipulieren von betonfertigteilen
DE2614961C3 (de) * 1976-04-07 1979-02-01 Brueggemann & Brand Kg, 5802 Wetter Karabinerhaken, insbesondere zum Transport von schweren Außenlasten an Hubschraubern
DE2641273A1 (de) * 1976-09-14 1978-03-16 Haeussler Ernst Vorrichtung zum manipulieren von betonfertigteilen
US4087947A (en) * 1976-09-15 1978-05-09 Superior Concrete Accessories, Inc. Edge-lifting system for a concrete slab
DE2708788C2 (de) * 1977-03-01 1979-01-18 Ernst Dr.-Ing. 4300 Essen Haeussler Vorrichtung zum Anhängen eines Betonfertigteils an ein Hebezeug
DE2806261C2 (de) * 1978-02-15 1986-08-14 Pfeifer Seil- Und Hebetechnik Gmbh & Co, 8940 Memmingen Vorrichtung zum Transport von Betonfertigteilen

Also Published As

Publication number Publication date
DE3169940D1 (en) 1985-05-23
EP0059228A1 (fr) 1982-09-08
ATE12758T1 (de) 1985-05-15

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