| 摘要 |
PROBLEM TO BE SOLVED: To enable easy and reliable lifting of a stopped lifting platform and reduce labor of an operator required for moving the lifting platform.SOLUTION: A lifting device comprises: a lifting platform 20 which is liftable along a mast 10 extending from a base frame 8 in a vertical direction; a chain (a rope-like body) 21 laid across the mast 10 and connected to the lifting platform 20; a main driving part 23 for lifting the lifting platform 20 by moving the chain 21 while driving a sprocket (a driving rotor) 22 hooked to a part of the chain 21; and a transmitted part 33 which is provided in the sprocket 22 and rotated integrally therewith, and receives a driving force of an auxiliary driving part 31, which can be attached to or detached from the base frame 8, through a driving force transmission part 32 provided in the auxiliary driving part 31.SELECTED DRAWING: Figure 1 |
