F - Mech Eng,Light,Heat,Weapons – 16 – G
Patent
F - Mech Eng,Light,Heat,Weapons
16
G
F16G 15/02 (2006.01)
Patent
CA 2644554
The present invention relates to a lifting hook (1) that can be used to lift loads using lifting gear, comprising a hook-shaped part (3) which hooks onto the load that is to be lifted and a chain length reducer (5) secured to the hook, the said reducer (5) comprising, on the one hand, an orifice (17) the dimensions of which allow the links of the chain (7) to pass through and then allow one (13) of the said links to be locked in position when the said chain (3) is taut and, on the other hand, means (21) for partially closing off the orifice (17) which are hinged so that they can be released manually simply by pressing them so as to allow the length of the chain (7) to be adjusted, notable in that the reducer (5) comprises a closure finger (10) that closes off the hook-shaped part (3) to prevent the load from becoming unhooked, and in that the closing-off means (21) comprise self-locking means (24) which hold the closure finger (10) in the locked position on the part (3) of the hook as long as the closing-off means (21) are disengaged from the orifice (17) and have not yet been returned to a position in which they bear against the external face (23).
La présente invention concerne un crochet (1) de levage, utilisable pour lever des charges au moyen d'un dispositif de levage, comprenant une partie (3) en forme de crochet qui s'accroche sur la charge à soulever et un réducteur (5) de longueur de chaîne solidaire du crochet, ledit réducteur (5) comprenant d'une part un orifice (17) dont les dimensions permettent le passage des maillons de la chaîne (7) , puis le blocage d'un (13) desdits maillons, lorsque ladite chaîne (3) est tendue, et d'autre part des moyens d'obturation partielle (21) de l'orifice (17) étant articulés pour être dégagés manuellement par simple pression pour permettre le réglage de la longueur de la chaîne (7) , remarquable en ce que le réducteur (5) comprend un doigt de fermeture (10) de la partie (3) en forme de crochet pour empêcher le décrochage de la charge, et en ce que les moyens d'obturation (21) comprennent des moyens autobloquants (24) qui maintiennent le doigt de fermeture (10) en position verrouillée sur la partie (3) du crochet tant que les moyens d'obturation (21) sont dégagés de l'orifice (17) et qu'ils ne sont pas repositionnés en appui sur la face externe (23).
Forges de L'eminee S.a.s.
Goudreau Gage Dubuc
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