A rope hoist includes: a rope drum around which a wire rope W is wound; a support shaft and a limit switch bolt arranged to be parallel to the rope drum; limit switch mechanisms; and a rope guide mechanism moving in accordance with a winding state of the wire rope W, and making the limit switch mechanisms perform on/off operation. Each of the limit switch mechanisms includes: a limit switch metal fitting into which both of the support shaft and the limit switch bolt are inserted, in which the limit switch metal fitting is sandwiched and fixed by nuts from both sides thereof in an axial direction of the limit switch bolt.

A rope hoist includes: a rope drum around which a wire rope W is wound; a support shaft and a limit switch bolt arranged to be parallel to the rope drum; limit switch mechanisms; and a rope guide mechanism moving in accordance with a winding state of the wire rope W, and making the limit switch mechanisms perform on/off operation. Each of the limit switch mechanisms includes: a limit switch metal fitting into which both of the support shaft and the limit switch bolt are inserted, in which the limit switch metal fitting is sandwiched and fixed by nuts from both sides thereof in an axial direction of the limit switch bolt.

A portable winch includes a motor, a rotatable drum, and a clutch assembly configured to engage a gear assembly. In a default state, the motor is mechanically detached from the rotatable drum, and, in response to activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

The present disclosure relates to an apparatus and method for loading and unloading cargo of air mobility, in which cargo loading and unloading may be automated without the aid of human resources, as well as enabling loading and unloading of cargo in a required location without an air mobility landing. The apparatus includes a winch installed in a cargo hold of an air mobility, a multiarticulated robot arm suspended from the winch, and a gripper provided on an end of the multiarticulated robot arm and capable of gripping a container.