| 摘要 |
<p>Disclosed is a hoist using friction wheels. The hoist includes a main frame (1); friction wheels (10) installed on the main frame (1) such that a wire is wound on outer circumferential surfaces of the friction wheels in a single line to raise and lower a cargo connected to one end of the wire; a friction wheel driving unit (40) installed at the friction wheels (10) to rotate the friction wheels (10); a winder (50) installed on the main frame (1) such that the loosened wire at the drawing side is wound on the winder (50); and a winder driving unit (60) installed at the winder (50) to rotate the winder (50). The hoist pulls up a cargo having a large load or a high head, and allows the wire to be uniformly wound on the winder (50) in plural lines, while minimizing the size of hoist.</p> |
