Lifting device

B - Operations – Transporting – 66 – D

Patent

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Details

B66D 3/16 (2006.01) B66D 3/26 (2006.01)

Patent

CA 2362753

The invention relates to a lifting device for raising, lowering and putting loads. The lifting device includes a hand chain wheel (2) which can be turned in both directions by a hand chain (3). The hand chain wheel (2) is coupled to a load wheel (5), which moves a load chain (6) and a load suspended thereon. The hand chain wheel (2) is covered by a rotatably supported cover (14) with chain guide openings (15, 16). The cover (14) is rotatably secured by a supporting metal sheet (17) which is located on a side plate (12) of the housing (11) that accommodates the load chain wheel (5). The cover (14) engages in a slide ring (20) of the supporting metal sheet (17) with a guide (18) that is oriented radially outwardly, wherein the slide ring has a central recess {19) for the cover (14).

La présente invention concerne un appareil de levage servant à élever, à abaisser et à tirer des charges. L'appareil de levage comprend une roue à chaîne manuelle (2) qui peut tourner dans les deux sens grâce à une chaîne manuelle (3). La roue à chaîne manuelle (2) est couplée à une roue de levage (5) qui elle met en mouvement une chaîne de levage (6) et une charge suspendue à cette dernière. La roue à chaîne manuelle (2) est protégée par un couvercle (14) monté rotatif doté d'ouvertures de guidage de chaîne (15, 16), le couvercle (14) étant maintenu de manière à pouvoir tourner, au moyen d'une tôle de support (17) fixée à une plaque latérale (12) du boîtier (11) entourant la roue à chaîne de levage (5). Le couvercle (14) présente un élément de guidage (18), dirigé radialement vers l'extérieur, qui s'enclenche dans un anneau lisse (20) de la tôle de support (17), ledit anneau lisse étant doté d'un logement central (19) destiné au couvercle (14).

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