BE355653A - - Google Patents

Info

Publication number
BE355653A
BE355653A BE355653DA BE355653A BE 355653 A BE355653 A BE 355653A BE 355653D A BE355653D A BE 355653DA BE 355653 A BE355653 A BE 355653A
Authority
BE
Belgium
Prior art keywords
lifting
crane
hook
during
horizontal
Prior art date
Application number
Other languages
French (fr)
Publication of BE355653A publication Critical patent/BE355653A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B66C23/08Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths
    • B66C23/10Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00Cranes
    • B66C2700/03Cranes with arms or jibs; Multiple cranes
    • B66C2700/0307Cranes in which it is essential that the load is moving horizontally during the luffing movement of the arm or jib

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Description

       

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 r 1 IL Z2 à Schec und Liobo, H&e i-'ktige6µ3-ls-b Giue avec balance automatique, poiron'able et à flèche relevable sous charge. 



   Jusqu'à présent il fut impossible de munir les grues à volée variable et chemin du crochet approximativement horizontale d'une balance poinponnable. Tout au plus on était parvenu à obtenir une seule position de la volée ou 1   'on   pouvait garantir un poids absolument juste. La con- 
 EMI1.2 
 ' dition cherchée, à laquelle on peut peser et poinponrner   la   balance à chaque position de la volée, est d'obtenir qu'une longeur d'environ 2 n du câble de levage, avant d' arriver du tambour à la   poulie',   de tête, reste constamment horizontale, pendant toute la manoeuvre du relevage de la volée. 



   Le dessin annexe, donné à titre d'exemple, montre urne forme d'exécution de' ce genre de   grue.- .   



  Pratiquement cette condition a été remplie par le loge- ment de deux poulies 3 et 4 dans une charpente 1, arti- 

 <Desc/Clms Page number 2> 





   <Desc / Clms Page number 1>
 
 EMI1.1
 r 1 IL Z2 à Schec und Liobo, H & e i-'ktige6µ3-ls-b Giue with automatic scale, poiron'able and lifting boom under load.



   Until now, it has been impossible to equip cranes with variable boom and approximately horizontal hook path with a punching scale. At most, one had succeeded in obtaining a single position of the volley where an absolutely fair weight could be guaranteed. The con-
 EMI1.2
 'desired edition, at which the balance can be weighed and punched at each position of the flight, is to obtain that a length of approximately 2 n of the lifting cable, before arriving from the drum to the pulley', to head, remains constantly horizontal, throughout the lifting maneuver of the flight.



   The accompanying drawing, given by way of example, shows an embodiment of this kind of crane.



  Practically this condition has been fulfilled by the accommodation of two pulleys 3 and 4 in a frame 1, arti-

 <Desc / Clms Page number 2>




    

Claims (1)

culée au point "a' à la volée 8 et attachée, par .le pa- rallelogramme a, b,c,d,à la partie non relevable 2,de la grue de telle fapon que cette charpente(1) reste horizon- tale pendant le mouvement de relevage, 5 désigne le câble de levage.allant du tambour 6 au cro- chet 7. - REVENDICATION. abutment at point "a 'on fly 8 and attached, by parallelogram a, b, c, d, to the non-lifting part 2, of the crane in such a way that this frame (1) remains horizontal during the lifting movement, 5 designates the lifting cable going from drum 6 to hook 7. - CLAIM. Grue avec balance automatique, poinponnable et à flèche relevable sous charge, dont le crochet, pendant le relevage de la volée, reste approximativement dans un plan horizontal, caractérisée en ce qu'une partie( 1) portant deux poulies 8 et 4) sur lesquelles passe le câble de levage( 5,) allant du tambour(6)au crochet(7) est attachée au point "a" de la volée (8) d'une facon articulée, etqui est réunie, à 1 a partie fuxe (2) de 1 a grue par un parallè- logramme (a,b,c,d) garantissant ainsi à la partie, supéri- eure (1), pendant le mouvement de relevage de la flèche, le maintien de sa position primitive, p.e. horizontale. Crane with automatic scale, punchable and with lifting jib under load, the hook of which, during the lifting of the flight, remains approximately in a horizontal plane, characterized in that a part (1) carrying two pulleys 8 and 4) on which passes the lifting cable (5,) going from the drum (6) to the hook (7) is attached to point "a" of the fly (8) in an articulated way, and which is joined, to 1 a fuxe part (2 ) of 1 a crane by a parallelogram (a, b, c, d) thus guaranteeing the upper part (1), during the lifting movement of the jib, the maintenance of its original position, eg horizontal .
BE355653D BE355653A (en)

Publications (1)

Publication Number Publication Date
BE355653A true BE355653A (en)

Family

ID=29870

Family Applications (1)

Application Number Title Priority Date Filing Date
BE355653D BE355653A (en)

Country Status (1)

Country Link
BE (1) BE355653A (en)

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