| 摘要 |
PURPOSE: A power transfer structure for a winch is provided to block the power when an object excessively moves or the sudden overload is applied to the object and thus the power is transferred to a motor and a driving shaft, in a state the motor of the winch stopped. CONSTITUTION: A power transfer structure for a winch comprises a driving shaft(24), a driven shaft(122) and a main shaft. A ball groove(116) is installed on the outer surface of the driving shaft. A spring groove(114) is installed on the outer surface of the driven shaft. Into the spring groove, a spring supporting a ball(112) is inserted. A driving pulley(126) is connected to the other end of the main shaft. An object(130) is connected to a driven pulley(128) operated by the driving pulley and tension is applied to the object by the rotation of the motor. |
