Elevator with separated speed governor and position detector

摘要

In an elevator, a transmission sheave is attached to a mount structure fastened to a guide rail. A speed governor rope suspended from a speed governor is coupled with an elevator car that ascends and descends in a shaft, and is wound on the transmission sheave. An idler pulley is provided for increasing a winding angle with respect to the transmission sheave by changing movement of the speed governor rope 4. A position detection apparatus is provided for detecting the position of the car in the shaft based upon the rotation of the transmission sheave. The position detection apparatus can be installed in an empty space in the shaft without the need of a repair of an existing speed governor to save the repair costs of the elevator.