Patent ID: 8157077
Filing Date: 2012-04-17
Classification: B66D

Abstract:
1. A clutch device for an electric winch comprising: a gear box positioned outside of a gear mechanism of the electric winch; a ring gear settled in the gear box and in communication with the gear mechanism; a plurality of braking recesses provided on an outer periphery surface of the ring gear; a braking port provided in the gear box and corresponding to the braking recesses of the ring gear; a detachable clutch sleeve fixed in the braking port; a reversed T-shaped clutch lever provided in the clutch sleeve; an elastic element disposed between the clutch lever and the clutch sleeve; and a clutch handle being rotatable and provided on the clutch sleeve and connected with the clutch lever by a connection mechanism, a top inner surface of the clutch handle and a top surface of the clutch sleeve having cam faces formed by double tapered faces, the clutch handle having four flanges being homogeneously distributed on a periphery of an inner surface of the clutch handle, wherein two of the flanges being arranged diagonally are short flanges being relatively shorter than the other two flanges being long flanges and arranged diagonally, the four flanges forming a circle for containing an outer surface of the clutch sleeve; and a rotating-positioning mechanism being rotatable in 180 degrees provided between the clutch handle and the clutch sleeve.