Leaf chain drive assembly

B - Operations – Transporting – 60 – P

Patent

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214/112

B60P 1/00 (2006.01)

Patent

CA 2032623

A leaf drive assembly (20) designed for use with a platform lift of the type disclosed in U.S. Patent No. 4,058,228. Leaf chains (72, 120, 208) are used in place of roller chains for transmitting rotational drive between spaced sheave (50, 60). Each sheave contains a unique projecting lug (52, 54) designed to engage a correspondingly sized connecting link (122) in the associated leaf chain (120) so as to permit drive to be transmitted between the leaf chain and the associated sheave.

L'invention concerne un ensemble d'entraînement (20) conçu pour être utilisé avec une plate-forme élévatrice du type divulgué dans le brevet américain No 4,058,228. Des chaînes à mailles jointives (72, 120, 208) sont utilisées au lieu de chaînes à rouleaux pour transmettre la force rotative entre des poulies (50, 60) espacées. Chaque poulie comprend une patte en saillie (52, 54) destinée à s'engager dans un chaînon (122) de dimension correspondante dans la chaîne à mailles jointives (120) de manière à transmettre la force d'entraînement entre la chaîne et la poulie qui y est associée.

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