Cable winch structure

A cable winch structure for automobiles having a rolling cylinder connected to a speed-reducing device at one lateral side, and having a motor connected to one end of the roller cylinder so that the speed reducing device transmits power of the motor to the roller cylinder facilitating traction of a cable, the speed-reducing device including a control button, a transmission shaft, a gear box, a sun gear, a predetermined planetary gear component, a clutch and planetary gear component and a fastening rim, wherein a perimeter edge of a base plate of the planetary gear component is an integral unit perpendicularly folded to form a plurality of bridging upright faces, and a covering plate provided to the planetary gear component has a perimeter edge stamped to form a plurality of recessed slots, in combination the upright faces, engaged with the recessed slots and then welded to enhance strength of the combination of the planetary gear component, a perimeter edge of a base plate of the clutch and planetary gear component is an integral unit perpendicularly folded to form a plurality of bridging upright faces, and a covering plate provided to the clutch and planetary gear component has perimeter edge stamped to form a plurality of recessed slots, in combination the upright faces, engaged with the recessed slots and then welded to enhance strength of the combination of the clutch and planetary gear component to provide rigid structure of the cable winch.