Elevator system having a drive sheave with rigid but...

Details Elevator system having a drive sheave with rigid but... Elevator system having a drive sheave with rigid but...

B - Operations, Transporting

66

B

187/10

B66B 7/06 (2006.01) B66B 15/04 (2006.01) F16H 55/36 (2006.01)

Patent

CA 1045990

ELEVATOR SYSTEM ABSTRACT OF THE DISCLOSURE An elevator system including an elevator car, a counterweight, cables interconnecting the elevator car and counterweight, and a traction drive which includes a drive sheave over which the cables pass. The drive sheave has rigid but circumferentially compliant grooves for the cables. The cable grooves are defined by a plurality of circumferentially spaced sector or segment members. The sector members are connected to the hub portion of the drive sheave with a compliant arrangement which permits a prede- termined independent circumferential deflection of each sector member in response to friction forces between the cables and groove surfaces produced by changes in the length of the cables as they pass over the drive sheave.

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