Patent ID: 6755393
Filing Date: 2004-06-29
Classification: B66B,Y10T

Abstract:
An elevator drive sheave disposed on a hoisting machine onto which a main rope for suspending a car is wound, the elevator drive sheave being rotated by a driving force from a motor portion of the hoisting machine, wherein said elevator drive sheave comprises:a sheave body having a cylindrical main body outer circumferential surface; a plurality of divided segments divided in a circumferential direction of said sheave body, each divided segment being mounted to said main body outer circumferential surface and including a rope groove portion into which the main rope is inserted; and a torque transmission mechanism including a plurality of keys interposed between said sheave body and said divided segments for positioning said divided segments in a circumferential direction relative to said sheave body and transmitting torque between said sheave body and said divided segments, a contact surface on said divided segments positioning said divided segments in an axial direction relative to said sheave body by contacting an axial end surface of said sheave body.