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公开(公告)号：US11667496B2
公开(公告)日：2023-06-06
申请号：US17391768
申请日：2021-08-02
Applicant: Otis Elevator Company
Inventor： BiChun Li , ShenHong Wang
Abstract: A roller system, a roller brake device and an elevator system. The roller brake device is used for the roller system. The elevator system includes the roller system. The roller system comprises a roller assembly and a roller brake device, the roller brake device includes: a body, the roller brake device is mounted to the roller assembly by the body; an actuation device mounted to the body; and a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position.
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公开(公告)号：US20220135374A1
公开(公告)日：2022-05-05
申请号：US17391768
申请日：2021-08-02
Applicant: Otis Elevator Company
Inventor： BiChun Li , ShenHong Wang
Abstract: A roller system, a roller brake device and an elevator system. The roller brake device is used for the roller system. The elevator system includes the roller system. The roller system comprises a roller assembly and a roller brake device, the roller brake device includes: a body, the roller brake device is mounted to the roller assembly by the body; an actuation device mounted to the body; and a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position.
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公开(公告)号：US20220017329A1
公开(公告)日：2022-01-20
申请号：US17373955
申请日：2021-07-13
Applicant: Otis Elevator Company
Inventor： BiChun Li , ShenHong Wang , Fu Qi
Abstract: A fault location unit of a landing door safety circuit includes: a fault collection circuit, which is disposed corresponding to the landing door locking fault monitoring module of the landing door safety circuit at a certain landing, and which is configured to collect a signal indicating landing door locking fault from only the landing door locking fault monitoring module at said certain landing and output a corresponding electrical level signal; and a fault sending component, which is electrically connected to the fault collection circuit in a one-to-one correspondence, and which is configured to send corresponding fault information containing landing information of the landing based on the received electrical level signal.
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