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公开(公告)号：US12110211B2
公开(公告)日：2024-10-08
申请号：US16617019
申请日：2017-08-10
CPC分类号： B66B5/02 , B66B7/1215 , B66B1/32
摘要： A break detection device includes an extraction unit (22), an extraction unit (23), a detection unit (24), and a determination unit (26). The extraction unit (22) extracts, from an output signal from a sensor, a vibration component in a specific frequency band. The extraction unit (23) attenuates, from the vibration component extracted by the extraction unit (22), a steady vibration component and a progressively increasing vibration component to extract a determination signal. The detection unit (24) detects, on the basis of the determination signal, occurrence of an abnormal variation in the output signal from the sensor. The determination unit (26) determines whether or not a rope has a broken portion.
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公开(公告)号：US20240286869A1
公开(公告)日：2024-08-29
申请号：US18656975
申请日：2024-05-07
申请人： KONE Corporation
CPC分类号： B66B5/0031 , B66B1/32 , B66B1/3492
摘要： The elevator arrangement includes an elevator shaft, an elevator car configured to be moveable in a vertical direction along the elevator shaft, an electromechanical safety device to which safety device electrical power is supplied during operation of the elevator, and which safety device is configured to be triggered when power supply to the safety device is cut off, wherein triggering of the safety device is configured to prevent movement of the elevator car above at least one predetermined upper position and/or be-low at least one predetermined lower position, and a reserve power source, wherein the arrangement is configured to allow power supply from the reserve power source to the safety device for allowing moving of the elevator car above the at least one predetermined upper position and/or below the at least one predetermined lower position when normal power supply to the safety device is cut off.
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公开(公告)号：US20240199376A1
公开(公告)日：2024-06-20
申请号：US18364974
申请日：2023-08-03
摘要： A governor assembly for an elevator system. The governor assembly includes: a sheave configured to rotate about a central axis (X-X) thereof at a speed related to the speed of movement of an elevator car; a plurality of masses mounted to the sheave for rotation therewith about the central axis (X-X) and configured to move from a first radial position to a second radial position, radially outward of the first radial position, when a speed of rotation of the sheave meets or exceeds a set speed; a sensor configured to detect that the plurality of masses have reached the second radial position; and a brake moveable from a non-braking position in which the sheave is free to rotate to a braking position in which the brake contacts the sheave so as to slow or stop rotation of the sheave.
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公开(公告)号：US20240132325A1
公开(公告)日：2024-04-25
申请号：US18402482
申请日：2024-01-02
申请人： KONE Corporation
发明人： Arto NAKARI , Olli POKKINEN , Teppo VUORIO
CPC分类号： B66B1/32 , B66B1/3492 , B66B1/36 , B66B5/02
摘要： A method includes monitoring position and/or movement of an elevator car in a standby mode of a braking arrangement, and activating the braking arrangement from the standby mode in response to a detection of a change in the position or of the movement. An elevator and an electric power converter are also disclosed.
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公开(公告)号：US11866295B2
公开(公告)日：2024-01-09
申请号：US16105581
申请日：2018-08-20
发明人： Prasanna Nagarajan , David Ginsberg , Shashank Krishnamurthy , Daryl J. Marvin , Ronnie E. Thebeau
CPC分类号： B66B1/32 , B66B5/0031 , B66B5/0037 , B66B5/02 , B66B5/04
摘要： An elevator system control system is provided and includes a sensor system configured to sense elevator car conditions, a safety system signaling element to generate a safety signal indicative of an incident and a control system configured to react to the safety system signal. When the control system receives the safety signal indicating that an incident has occurred that requires engagement of at least one of primary and secondary brakes, the control system controls a deceleration rate during the incident by operating the primary brake, determining whether the deceleration rate is within a target range and adjusting the deceleration rate based on signals from the sensor system.
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公开(公告)号：US20230265901A1
公开(公告)日：2023-08-24
申请号：US18112844
申请日：2023-02-22
发明人： Bo YU , Jinming WANG , Minmin SHAO , Hengyuan GAO , Shuaichao ZHAO
CPC分类号： F16D66/024 , B66B1/32 , B66B5/0031
摘要： The invention discloses a wear monitoring system for a brake device of a motor. The brake device includes a brake disc and a brake magnet movable relative to the brake disc. The wear monitoring system includes a first arm portion including a first free end and arranged to be moved with the brake magnet so that the first free end always contacts the bottom of the brake magnet, a second arm portion arranged to be moved with the first arm portion and including a second free end; and a trigger device including a trigger button that is triggered by the second free end of the second arm portion when the wear amount of the brake magnet reaches a first threshold or a multiple of the first threshold and when the brake magnet and the brake disc are in an attracted state. A motor and an elevator are also disclosed.
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公开(公告)号：US11554933B2
公开(公告)日：2023-01-17
申请号：US16883212
申请日：2020-05-26
申请人： KONE Corporation
发明人： Mikko Viljanen , Juha-Matti Aitamurto , Tuukka Kauppinen , Riku Lampinen , Toni Kallio , Veli-Matti Virta
摘要： An elevator includes an elevator shaft defined by surrounding walls and top and bottom end terminals; an elevator car vertically movable in the elevator shaft; elevator hoisting ropes coupled to the elevator car; an elevator hoisting machine including a traction sheave engaged with the elevator hoisting ropes; a traction monitor configured to determine traction of the hoisting machine; an electromechanical brake; a measuring apparatus adapted to provide speed data and position data of the elevator car; and a safety processor associated with the traction monitor and the measuring apparatus. The safety processor includes an ETLS threshold configured to decrease towards the top and/or bottom end terminal in accordance with the position of the elevator car. The ETSL threshold is adjusted on the basis of the traction of the hoisting machine. The safety processor is configured to determine an elevator car slowdown failure if the speed data meets or exceeds the ETSL threshold.
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公开(公告)号：US11554932B2
公开(公告)日：2023-01-17
申请号：US16566617
申请日：2019-09-10
申请人： KONE Corporation
发明人： Antti Koskinen , Mikko Puranen , Serguei Laitinen
IPC分类号： B66B1/32 , B66B1/36 , B66B5/18 , B66B9/00 , F16D66/00 , F16H15/20 , F16D121/24 , F16D125/40
摘要： A method for controlling movement of an elevator car includes driving the car vertically to a landing; activating a park brake; and holding the car immovable with the park brake. The holding includes compressing a guide rail by compression members with a first compression force; opening a door for allowing loading and/or unloading the car; maintaining the door open for allowing loading and/or unloading the car while the car is held immovable; and starting closing movement of the door. After the starting closing movement of the door, relieving the brake for allowing the elevator car to start to move vertically. The relieving includes reducing the compression force of the brake, to be smaller than the first compression force, such that the compression members start sliding vertically against the guide rail; maintaining compression with a smaller compression force than the first compression force, allowing the compression members to continue to slide vertically against the guide rail; and thereafter removing the compression.
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公开(公告)号：US20230009007A1
公开(公告)日：2023-01-12
申请号：US17825712
申请日：2022-05-26
发明人： Fengkun Zhu , Linlin Luo , Xuewei Wang
摘要： A brake static plate assembly, a brake and an elevator system. The brake static plate assembly includes a first static plate and a second static plate. The first static plate includes a first outer edge and a second outer edge which are adjacent to each other; a first inner edge provided with a first shaft mounting notch thereon; a first set of coils disposed on a braking surface of the first static plate. The second static plate includes: a third outer edge and a fourth outer edge which are adjacent to each other; the second inner edge which is matched with the first inner edge and is provided with a second shaft mounting notch which forms a shaft mounting hole of the drive shaft together with the first shaft mounting notch; the second set of coils are disposed on the braking surface of the second static plate.
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公开(公告)号：US11434104B2
公开(公告)日：2022-09-06
申请号：US15835653
申请日：2017-12-08
发明人： Richard N. Fargo
摘要： A safety actuation device for an elevator system including an elevator car and a guide rail includes a safety brake disposed on the car and adapted to be forced against the guide rail when moved from a non-braking state to a braking state. An electronic safety actuator is operably connected to the safety brake. The electronic safety actuator includes at least one sensor configured to monitor one or more parameters associated with a ride quality of the elevator car.
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