Electro-mechanical lifting device

Details Electro-mechanical lifting device Electro-mechanical lifting device

B - Operations, Transporting

66

F

B66F 3/10 (2006.01) B65G 1/04 (2006.01) B66F 3/44 (2006.01)

Patent

CA 2647788

The invention relates to an electro-mechanical lifting device comprising a lifting head (1) and a controlling and positioning carriage (2), said lifting head (1) comprising a substantially vertical telescopic cylinder element (3), comprised of a plurality of outer telescopic jacket elements (4-7) and a corresponding number of inner telescopic threaded elements (8-11), an element (26) for coupling the member to be lifted being provided above the upper jacket element, the upper element of the lower inner threaded element (9) being coupled with said lifting member coupling element, the intermediate threaded element (s) (8,11) being provided with an outer and an inner threading, while the lower inner threaded element (9) is threaded only on the outer surface, coupling between said jacket elements providing means preventing their rotation each other.

La présente invention concerne un dispositif de levage électro-mécanique qui comprend une tête de levage et un chariot de contrôle et de positionnement, ladite tête de levage comprenant un élément cylindrique télescopique sensiblement vertical, composé d'une pluralité d'éléments de chemise télescopiques extérieurs et un nombre correspondant d'éléments filetés télescopiques intérieurs, un élément pour coupler l'élément destiné à être levé prévu au-dessus de l'élément de chemise supérieur, l'élément supérieur de l'élément fileté intérieur inférieur étant couplé audit élément de couplage d'élément de levage, le ou les éléments filetés intermédiaires étant pourvus d'un filetage extérieur et intérieur, alors que l'élément fileté intérieur inférieur est fileté seulement sur la surface extérieure, réalisant un couplage entre lesdits éléments de chemise et fournissant des moyens qui empêchent leur rotation relative.

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