| 摘要 |
Disclosed is a hoist using a friction wheel to maximize horizontal movement of a load to be lifted while preventing a wire from deviating from a winding orbit while being wound on a wire drum, the friction wheel having a simplified configuration and being designed to stably support horizontal and vertical movable guide rollers. The hoist includes a single friction wheel on which a wire at a winding side is wound, a wire drum on which the wire at a drawing side is wound, a driven friction wheel through which the wire is guided from the friction wheel to the wire drum, vertical and horizontal stationary guide rollers and vertical and horizontal movable rollers for guidance of the wire, a movable roller mount to horizontally reciprocate the horizontal and vertical movable guide rollers, and upper and lower sheaves to guide the wire to the friction wheel. |
