Invention Application
- Patent Title: HIGH SPEED ROPELESS ELEVATOR WITH DIFFERENT NUMBER OF HOISTWAYS UP AND DOWN IN A GROUP
- Patent Title (中): 高速无线电梯,不同组别的上下班
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Application No.: US15101145Application Date: 2013-12-05
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Publication No.: US20160304316A1Publication Date: 2016-10-20
- Inventor: Tadeusz Witczak , Daryl J. Marvin , Zbigniew Piech
- Applicant: OTIS ELEVATOR COMPANY
- International Application: PCT/US2013/073311 WO 20131205
- Main IPC: B66B9/00
- IPC: B66B9/00 ; B66B1/24

Abstract:
A ropeless elevator system (80) is disclosed. The ropeless elevator system (80) includes a plurality of hoistways (22, 26, 72) in which a plurality of elevator cars (24) circulate to a plurality of floors. Each hoistway (22, 26, 72) is assigned to a single direction of travel for the elevator cars (24). The single direction of travel is either upward or downward. A first quantity of upward hoistways (86) is unequal to a second quantity of downward hoistways (88), and a speed of each of the plurality of elevator cars (24) in the upward hoistways (86) is greater than a speed of each of the plurality of elevator cars in the downward hoistways (88).
Information query