Invention Grant
- Patent Title: Elevator system including a 4:1 roping arrangement
- Patent Title (中): 电梯系统包括4:1绳索布置
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Application No.: US14000257Application Date: 2011-02-23
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Publication No.: US09321612B2Publication Date: 2016-04-26
- Inventor: Richard N. Fargo , Frank J. Sclafani
- Applicant: Richard N. Fargo , Frank J. Sclafani
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds
- International Application: PCT/US2011/025841 WO 20110223
- International Announcement: WO2012/115632 WO 20120830
- Main IPC: B66B7/06
- IPC: B66B7/06 ; B66B11/00

Abstract:
An exemplary elevator system includes an elevator car. At least one guiderail guides movement of the elevator car. The guiderail has a length in a direction of movement of the elevator car and a depth generally perpendicular to the length. A plurality of flat belts are situated relative to the elevator car such that movement of the flat belts for causing movement of the elevator car is approximately four times a corresponding movement of the elevator car. A plurality of sheaves is situated for directing the flat belts as the belts at least partially wrap around the sheaves. The plurality of sheaves remains fixed near one end of the guide rail. The plurality of sheaves rotate about coaxially aligned axes and have a collective width along the axes that is no greater than the depth of the guiderail.
Public/Granted literature
- US20130327596A1 ELEVATOR SYSTEM INCLUDING A 4:1 ROPING ARRANGEMENT Public/Granted day:2013-12-12
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