DE725114C - Load hook for cranes or the like. - Google Patents

Load hook for cranes or the like.

Info

Publication number
DE725114C
DE725114C DEP79809D DEP0079809D DE725114C DE 725114 C DE725114 C DE 725114C DE P79809 D DEP79809 D DE P79809D DE P0079809 D DEP0079809 D DE P0079809D DE 725114 C DE725114 C DE 725114C
Authority
DE
Germany
Prior art keywords
hook
load
cranes
load hook
collar
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
DEP79809D
Other languages
German (de)
Inventor
Willi Pfahl
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.)
Beck & Henkel Maschb AG
Original Assignee
Beck & Henkel Maschb 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 Beck & Henkel Maschb AG filed Critical Beck & Henkel Maschb AG
Priority to DEP79809D priority Critical patent/DE725114C/en
Application granted granted Critical
Publication of DE725114C publication Critical patent/DE725114C/en
Expired 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Description

Lasthaken für Krane o. dgl. Am Gewinde von Lasthaken, Lastösen u. dgl. traten oft nach längerer Betriebsdauer Rißbildungen durch Kerbwirkung auf, die Brüche im Hakenschaft zur Folge haben.Load hooks for cranes or the like. On the thread of load hooks, shackles and the like. The like often occurred after a long period of operation cracks due to the notch effect, which result in breaks in the hook shaft.

Es ist bereits bekannt, Lasthaken mittels eines am Hakenschaft angesetzten Bundes zu befestigen, um so das Gewinde zu vermeiden, doch sind dann zur Befestigung der Lasthaken andere Bauteile, etwa in Form von geteilten, geschraubten Traversien notwendig. Die Unterflaschen der Hebezeuge sind jedoch oft verschiedenen materialzerstörienden Einflüssen ausgesetzt, wie Rostbildungen durch Nässe, Dämpfe oder sehr starker Hitze, wie z. B. bei Gieß- und Schmiedekranen. Es. ist daher von großem Vorteil, wenn hier Schraub.enverbindungen überhaupt in Fortfall kommen, um die Sicherheit zu erhöhen. Es ist auch schon vorgeschlagen worden, den ganzen Haken von oben her durch die Traverse hindurchzustecken, wobei der Hakenschaft so stark bemessen wird, daß er das Loch ausfüllt und der noch stärkere Kopf auf der Traverse hängenbleibt. Abgesehen davon, daß es unmöglich ist, das Loch in der Traverse so groß auszuführen, da.ß z. B. ein Doppelhaken hindurchgesteckt werden kann, ist es auch unvorteilhaft, den Hakenschaft derart stark auszuführen, nur um ein genügend großes Loch zum Durchstecken des Hakens zu erhalten. Andere Ausführungen mit geteilten Verbindungsgliedern lassen wiederum nicht zu, ungeteilte Kugellager unter den Bund des Lasthakens zu bringen.It is already known to use a load hook attached to the hook shaft To fasten covenants, so as to avoid the thread, but are then used for fastening the load hook other components, for example in the form of split, screwed traverses necessary. However, the bottom blocks of the hoists are often material-destructive in various ways Exposed to influences such as rust formation due to moisture, steam or very strong heat, such as B. in casting and forging cranes. It. is therefore of great benefit when here Screw connections can be omitted at all in order to increase safety. It has also been suggested to run the whole hook from above through the To insert traverse, the hook shaft is so strong that it fills the hole and the even stronger head gets stuck on the crossbeam. Apart from that of the fact that it is impossible to make the hole in the crossbeam so large that it z. B. a double hook can be inserted, it is also disadvantageous to the Make the hook shank so strong, just to have a sufficiently large hole to push through of the hook. Leave other designs with split connecting links again not to bring undivided ball bearings under the collar of the load hook.

Die Erfindung bezieht sich nun auf eine Ausführung, die die erwähnten Nachteile nicht hat. Es kann ein Lasthaken verwendet werden, wie .er allgemein gebräuchlich ist. Er bekommt, wie die Zeichnung beispielsweise zeigt, in, dem üblichen Schaft a statt des Gewindes eine Einschnürung, so daß der tragende Bund b entsteht. Der Bund b stützt sich auf eine ungeteilte Unterlage c mittels einer Muffe d, die in der Längsrichtung geteilt ist und in die Bohrung der Unterlage c eingreift. Nach der Zeichnung ist die Unterlage c als drehbarer Körper ausgebildet und wird unter Einschaltung eines Kugellagers von einer Traverse e getragen. Zum Sichern des Hakens gegen eine Bewegung nach oben ist ein Stellring f vorgesehen.The invention now relates to an embodiment which does not have the disadvantages mentioned. A load hook can be used, as is commonly used. As the drawing shows, for example, it receives a constriction in the usual shaft a instead of the thread, so that the load-bearing collar b is created. The collar b is supported on an undivided base c by means of a sleeve d which is divided in the longitudinal direction and engages in the bore of the base c. According to the drawing, the base c is designed as a rotatable body and is supported by a traverse e with the inclusion of a ball bearing. To secure the hook against upward movement, an adjusting ring f is provided.

Claims (1)

PATENTANSPRUCH: Lasthaken für Krane o. dgl., bei denen sich der Lasthaken oder die Lastöse mit Hilfe eines Bundes an einer Traverse abstützt, gekennzeichnet durch eine in Längsrichtung unterteilte, einerseits unter den Bund (b) am Haken (a) fassende, anderseits in die Bohrung für den Hakenschaft in der ungeteilten Unterlage (c) eingreifende und sich auf diese stützende Muffe (d).PATENT CLAIM: Load hooks for cranes or the like, in which the load hook or the load eye is supported on a crossbeam with the help of a collar, characterized by a longitudinally subdivided, on the one hand under the collar (b) on the hook (a), on the other hand in the hole for the hook shaft in the undivided base (c) engaging and supporting itself on this socket (d).
DEP79809D 1939-09-27 1939-09-27 Load hook for cranes or the like. Expired DE725114C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP79809D DE725114C (en) 1939-09-27 1939-09-27 Load hook for cranes or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP79809D DE725114C (en) 1939-09-27 1939-09-27 Load hook for cranes or the like.

Publications (1)

Publication Number Publication Date
DE725114C true DE725114C (en) 1942-09-14

Family

ID=7393628

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP79809D Expired DE725114C (en) 1939-09-27 1939-09-27 Load hook for cranes or the like.

Country Status (1)

Country Link
DE (1) DE725114C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220253A1 (en) * 1981-05-30 1982-12-16 F.T. Industries Co., Ltd., Fukuyama, Hiroshima LOAD HOOK
EP0134862A1 (en) * 1983-07-26 1985-03-27 Elephant Chain Block Company Limited Load block for a hoist
US4708382A (en) * 1987-01-20 1987-11-24 Cooper Industries Separable lifting hook
DE3807700C1 (en) * 1988-03-07 1989-07-13 Mannesmann Ag, 4000 Duesseldorf, De Chain fastening
US6533231B1 (en) 1999-10-20 2003-03-18 Kci Konecranes International Plc Method for manufacturing a lifting hook and a lifting hook
EP1454870A3 (en) * 2003-03-06 2004-10-06 Demag Cranes & Components GmbH Suspension means for a lifting hook

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220253A1 (en) * 1981-05-30 1982-12-16 F.T. Industries Co., Ltd., Fukuyama, Hiroshima LOAD HOOK
EP0134862A1 (en) * 1983-07-26 1985-03-27 Elephant Chain Block Company Limited Load block for a hoist
US4708382A (en) * 1987-01-20 1987-11-24 Cooper Industries Separable lifting hook
DE3807700C1 (en) * 1988-03-07 1989-07-13 Mannesmann Ag, 4000 Duesseldorf, De Chain fastening
US6533231B1 (en) 1999-10-20 2003-03-18 Kci Konecranes International Plc Method for manufacturing a lifting hook and a lifting hook
EP1454870A3 (en) * 2003-03-06 2004-10-06 Demag Cranes & Components GmbH Suspension means for a lifting hook
US7219937B2 (en) 2003-03-06 2007-05-22 Demag Cranes & Components Gmbh Suspension for load hooks
CN100402405C (en) * 2003-03-06 2008-07-16 德马格起重机及部件有限公司 Hanging device of hoisting hock

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