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公开(公告)号：US10442659B2
公开(公告)日：2019-10-15
申请号：US15193436
申请日：2016-06-27
Applicant: OTIS ELEVATOR COMPANY
Inventor： Amir Lotfi , Bruce P Swaybill , James L Hubbard
IPC: B66B1/32 , B66D5/30 , B66B5/02 , F16D55/22 , F16D121/22
Abstract: A brake for an elevator car includes a multiple of sequentially operated brake segments to control a timing and a rate of brake torque for deceleration of the elevator car.
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公开(公告)号：US20180016114A1
公开(公告)日：2018-01-18
申请号：US15718822
申请日：2017-09-28
Applicant: Otis Elevator Company
Inventor： Prasanna Nagarajan , Amir Lotfi , Edward Piedra
IPC: B66B1/28
CPC classification number: B66B1/28 , B66B5/027 , B66B2201/00
Abstract: According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.
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公开(公告)号：US09809418B2
公开(公告)日：2017-11-07
申请号：US15056158
申请日：2016-02-29
Applicant: Otis Elevator Company
Inventor： Prasanna Nagarajan , Amir Lotfi , Edward Piedra
CPC classification number: B66B1/28 , B66B5/027 , B66B2201/00
Abstract: According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.
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公开(公告)号：US20170247222A1
公开(公告)日：2017-08-31
申请号：US15056158
申请日：2016-02-29
Applicant: Otis Elevator Company
Inventor： Prasanna Nagarajan , Amir Lotfi , Edward Piedra
IPC: B66B1/28
CPC classification number: B66B1/28 , B66B5/027 , B66B2201/00
Abstract: According to one embodiment, a method of operating an elevator system is provided. The method includes detecting, using a controller, when an external power source is unavailable. The method also includes controlling, using the controller, a plurality of components of the elevator system. The controlling comprises operating at least one of an elevator car, a drive unit, an inverter and a brake. The method further includes detecting, using the controller, an original direction of travel of the elevator car. The method yet further includes detecting, using the controller, a mode of the elevator car, wherein the mode includes at least one of a motoring mode, a near balance mode, and a regenerative mode. The method includes determining, using the controller, a target floor. The method also includes adjusting, using the controller, a velocity of the elevator car to reach the target floor in response to the mode detected.
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公开(公告)号：US20170129743A1
公开(公告)日：2017-05-11
申请号：US15411202
申请日：2017-01-20
Applicant: OTIS ELEVATOR COMPANY
Inventor： Amir Lotfi , Alan Stover Githens
CPC classification number: B66B15/04 , B66B7/06 , B66B9/00 , F16H55/36 , F16H2055/363
Abstract: An elevator system includes an elevator car located in a hoistway. One or more belts are operably connected to the elevator car to drive and/or support the elevator car along the hoistway. The one or more belts are routed over one or more sheaves. The one or more sheaves include an outer surface rotatable about a central axis and a flange located at at least one lateral end of the sheave. The sheave further includes a tracking compensator to limit lateral motion of the belt along the outer surface to prevent the belt from contacting the flange.
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Patent Agency Ranking
公开(公告)号：US09643819B2
公开(公告)日：2017-05-09
申请号：US14777058
申请日：2013-03-15
Applicant: OTIS ELEVATOR COMPANY
Inventor： Amir Lotfi , Alan Stover Githens
CPC classification number: B66B15/04 , B66B7/06 , B66B9/00 , F16H55/36 , F16H2055/363
Abstract: An elevator system includes an elevator car located in a hoistway. One or more belts are operably connected to the elevator car to drive and/or support the elevator car along the hoistway. The one or more belts are routed over one or more sheaves. The one or more sheaves include an outer surface rotatable about a central axis and a flange located at at least one lateral end of the sheave. The sheave further includes a tracking compensator to limit lateral motion of the belt along the outer surface to prevent the belt from contacting the flange.
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公开(公告)号：US20160304321A1
公开(公告)日：2016-10-20
申请号：US15037561
申请日：2013-11-22
Applicant: OTIS ELEVATOR COMPANY
Inventor： Brad Guilani , Amir Lotfi
Abstract: An elevator system includes an elevator car, a motor, and traction sheave operably connected to the motor to drive rotation of the traction sheave. A belt is operably connected to the elevator car and in frictional contact with the traction sheave to urge movement of the elevator car. One or more deflector sheaves are located between the traction sheave and the elevator car over which the belt is routed to guide the belt to the elevator car. The one or more deflector sheaves include an outer sheave surface having a distance from a sheave axis that varies along a width of the traction sheave. The outer surface includes a first portion having a first coefficient of friction and a second portion having a second coefficient of friction less than the first coefficient of friction, the first portion guiding an elevator belt toward a lateral center of the outer surface.
Abstract translation: 电梯系统包括可操作地连接到电动机以驱动牵引滑轮的旋转的电梯轿厢，电动机和牵引滑轮。 皮带可操作地连接到电梯轿厢并与牵引滑轮摩擦接触以促使电梯轿厢的运动。 一个或多个偏转滑轮位于牵引滑轮和电梯轿厢之间，在该电梯轿厢上传送皮带以将皮带引导到电梯轿厢。 一个或多个偏转滑轮包括具有沿着牵引滑轮的宽度变化的滑轮轴线的距离的外滑轮表面。 外表面包括具有第一摩擦系数的第一部分和具有小于第一摩擦系数的第二摩擦系数的第二部分，第一部分将电梯带引向外表面的横向中心。
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公开(公告)号：US20170362051A1
公开(公告)日：2017-12-21
申请号：US15529435
申请日：2015-11-19
Applicant: Otis Elevator Company
Inventor： Steven M. Millet , Ismail Agirman , Amir Lotfi
CPC classification number: B66B1/32 , B66B5/02 , B66B11/0476
Abstract: A braking system for an elevator includes an electromagnetic brake operably connected to an elevator car. A control circuit is operably connected to the electromagnetic brake and includes a switching mechanism to selectively modify a rate of engagement of the electromagnetic brake to selectively modify deceleration of the elevator car. A method of engaging an electromagnetic brake for an elevator system includes detecting one or more operational characteristics of the elevator system and selecting a first position or a second position of a switching mechanism disposed at a brake control circuit depending on the sensed operational characteristics. Electrical current is directed through one or more components of the brake control circuit, depending on the position of the switching mechanism, to determine a rate of engagement of the electromagnetic brake. A flow of electrical current through the brake control circuit is stopped, thereby causing engagement of the electromagnetic brake.
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公开(公告)号：US20170267492A1
公开(公告)日：2017-09-21
申请号：US15070300
申请日：2016-03-15
Applicant: Otis Elevator Company
Inventor： Amir Lotfi , Felix Benjamin Donath
CPC classification number: B66B11/0226 , B66B7/00 , B66B9/00 , B66B11/04
Abstract: An elevator car is constructed and arranged to move along a hoistway defined by a stationary structure. The elevator car includes a cabin and a component constructed and arranged to be in motion with respect to the cabin. A generator is carried by the cabin and is mechanically coupled to the component for driving the generator as the elevator car moves along the hoistway. An energy storage device of the elevator car is carried by the cabin and is configured to be charged by the generator. An electrical load of the elevator car is powered by at least one of the energy storage device and the generator.
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公开(公告)号：US20170240382A1
公开(公告)日：2017-08-24
申请号：US15591585
申请日：2017-05-10
Applicant: Otis Elevator Company
Inventor： Mark F. Orelup , Brad Guilani , Kathryn Rauss Sherrick , Amir Lotfi , Hong Yang
CPC classification number: B66B7/062 , B29D29/00 , B29K2105/0026 , D07B1/162 , D07B1/22 , D07B5/00 , D07B2401/2035 , D07B2501/2007 , Y10T428/239
Abstract: A belt and a method for manufacturing a belt is provided. The belt includes a plurality of lengthwise-extending tension members and a jacket. The jacket substantially retains the plurality of tension members. The jacket has a first side region, a second side region, and a center region between the first and second side regions. The first and second side regions of the jacket are more fire retardant than the center region of the jacket.
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