Elevator with electric/manual dual driving mode

An elevator with electric/manual dual driving-mode comprising a cab moved in an elevator well, and a power drive mounted on said cab and operated to lift and lower said cab in said elevator well, said power drive comprising host cable means suspended from a beam at a top in said elevator well and connected to said winch, a reversible motor having a motor shaft, a winch coupled to one end of the motor shaft of said reversible motor by a reducing gear and turned by said reversible motor to take up/let off said host cable means in lifting/lowering said cab, and a manual drive means for turning said reversible motor in driving said winch manually by a person in said cab, wherein said manual drive means comprises:

• a support fixedly mounted on said cab on the outside and holding an axle bearing;
• a gear shaft supported on the axle bearing of said support;
• clutch means controlled by a clutch switch to couple said gear shaft to the motor shaft of said reversible motor;
• a transmission mechanism;
• handle means disposed inside said cab and coupled to said gear shaft by said transmission mechanism, and turned to rotate said gear shaft through said transmission mechanism;
• and
• a clutch switch controlled to move said clutch means into engagement with said gear shaft and the output shaft of said reversible motor, for permitting the output shaft of said reversible motor to be turned with said gear shaft.