Sheave for elevator system

US10773929B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Jun Ma · 流花街道, CN
• Peter Keyo · Canton, US
• Brad Guilani · Woodstock Valley, US
• Gopal R. Krishnan · Wethersfield, US
• David J. Lanesey · Harwinton, US
• John P. Wesson · Vernon, US
• David R. Polak · Glastonbury, US
• Vijay Jagdale · South Windsor, US

Key dates

• Filing date: Jul 30, 2015
• Grant date: Sep 15, 2020
• Expiry date: Jul 19, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B15/02
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A belted elevator system (10) includes a hoistway (14) and an elevator car (12) suspended in the hoistway (14) via a suspension member (16) and drivable along the hoistway (14). The suspension member (16) is routed over a plurality of sheaves (18). A sheave (18) of the plurality of sheaves includes a shaft (36) defining a central axis of the sheave (18), the sheave (18) rotatable about the central axis. A sheave outer member (38) is operably connected to the shaft (36) and rotatable about the central axis. The sheave outer member (38) includes a sheave outer surface (44) interactive with the suspension member (16). The sheave outer member (38) is formed from a molded plastic material.