Hoist

Details Hoist Hoist

B - Operations, Transporting

66

D

B66D 1/22 (2006.01) B66C 11/18 (2006.01) B66C 13/06 (2006.01) B66C 17/00 (2006.01) B66C 17/20 (2006.01) B66C 19/00 (2006.01)

Patent

CA 2298730

Drums each having an independent drive source are installed on a trolley and each of the drums has a lifting rope which is wound around it and has an unwound end locked on a suspension piece, which will suppress any need to design the lifting rope in longer length and the drums in larger size. Sun gears, carriers and planetary gears disposed in each of the drums as well as internal teeth in each of the drums so as to be integrally rotated with the drum constitute a speed reducing mechanism for transmitting rotation of a drive source to each of the drums, will enable the entire hoist to be compact in size. Unwound length of the lifting rope from each drum is adjusted to control posture of the suspension piece and load in adequate state.

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