The present invention is directed to an elevator system. The elevator system comprises a car, a counterweight, at least one belt connecting the car and counterweight, and at least one sheave having a surface that engages with the belt. At least part of the surface of the sheave that interfaces with the belt has a plurality of features for reducing unwanted noise created due to the interaction between the belt and the sheave surface.
申请公布号
EP2665671(A4)
申请公布日期
2016.03.16
申请号
EP20110856439
申请日期
2011.01.21
申请人
OTIS ELEVATOR COMPANY
发明人
POLAK, DAVID;CHIPMAN, CHRISTOPHER;COFFIN, CHARLES;BLANC, ARTHUR;WESSON, JOHN, P.;CHEN, YAN;OPOKU, DANIEL;BURLATSKY, SERGEI