| 摘要 |
A cable traction apparatus comprises at least two pulleys disposed in a common plane. A first pulley (3) receiving the load has a semi-circular-sectioned groove while the other pulley (7) has a V-shaped groove section. A presser mechanism (9, 10, 13) is provided for tensioning the cable in proportion to the load and is associated with the pulley (7) having the V-shaped groove. <IMAGE> |
