Electric winch device and mobile crane

An electric winch device which is to be mounted on a mobile crane including an operative part for hoisting work to cause the operative part to perform an operation for the hoisting work by winding up or letting out a rope connected to the operative part, the electric winch device comprising:

• a winch drum having an axis, the winch drum being provided on the mobile crane to be rotatable about the axis and being wound with the rope therearound;
• a plurality of motors located on one side of the winch drum in an axial direction in which the axis of the winch drum extends, and arranged side by side in a direction perpendicular to the axial direction of the winch drum;
• a gear mechanism which combines torques output from the plurality of motors;
• and
• a transmitting part which transmits a resultant of torques combined by the gear mechanism to the winch drum to rotate the winch drum to thereby cause the winch drum to wind up or let out the rope.