EP0183616A2 - Sicherheitsbremse für Aufzüge - Google Patents

Sicherheitsbremse für Aufzüge Download PDF

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Publication number
EP0183616A2
EP0183616A2 EP85402282A EP85402282A EP0183616A2 EP 0183616 A2 EP0183616 A2 EP 0183616A2 EP 85402282 A EP85402282 A EP 85402282A EP 85402282 A EP85402282 A EP 85402282A EP 0183616 A2 EP0183616 A2 EP 0183616A2
Authority
EP
European Patent Office
Prior art keywords
brake
signal
safety
response
car
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85402282A
Other languages
English (en)
French (fr)
Other versions
EP0183616A3 (de
Inventor
Jean-Michel Junquas
René Vivien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP0183616A2 publication Critical patent/EP0183616A2/de
Publication of EP0183616A3 publication Critical patent/EP0183616A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well

Definitions

  • This invention relates to elevators, in particular, elevator brakes and safeties.
  • the brake which is electromechanically operated, is located in the machining room, where it is attached to the drive.
  • the braking force is limited by the traction between the cables and the drive.
  • the drive may "slip traction", reducing the braking force significantly.
  • the elevator safety a separate stopping device, is located on the elevator car.
  • a safety rapidly engages the elevator rail to stop the elevator car.
  • the safeties are usually progressive; that is, they progressively reach a maximum tolerable acceleration rate.
  • Safety operation is typically controlled by an elevator governor, which, generally speaking, is a mechanical 'evice that is connected to the elevator car and which, upon sensing elevator car overspeed, provides a mechanical pull (actuation) to the safety, causing it to engage the rail.
  • An object of the present invention is have both the brake and safety on the car.
  • a brake e.g. caliper brake
  • the brake is mechanically biased to normally freely engage the rail, but the bias is overcome or prevented by a brake control when braking is not needed. If overspeed is detected, however, the operative connection between the brake control and the brake is interupted, allowing the mechanical bias to apply the brake.
  • the bias is overcome by a hydraulic actuator operated by energizing a solenoid to operate a master cylinder.
  • the line connecting the master cylinder and the actuator is vented by another valve when overspeed is detected, thereby eliminating the need to retract the master cylinder to apply the brake.
  • a car 10 In the elevator in Fig. 1, there is a car 10, counterweight (CW) 12, motor 14, motor control (MCNTRL) 16 and two guide rails 18.
  • CW counterweight
  • MCNTRL motor control
  • PPT motor control
  • the governor in this application is connected to the velocity transducer, which, for illustrative purposes, senses car motion relative to a tape to provide car velocity output signals. Position and velocity measurement in that manner is well known.
  • the governor provides an ES signal to bring the car to an emergency stop.
  • the ES signal is supplied to a brake control 28, also on top of the car.
  • the brake control 28 which is also connected to the motor control 16 by a traveling cable 30, controls operation of two brakes 32 and they are also on top of the car. These brakes engage the rails, but are maintained in disengagement by the brake control 28 in response to a brake release (BR) signal provided from the motor control except when the car is stopping or is parked, conditions when braking is needed.
  • BR brake release
  • Fig. 2 shows that the brake control 28 contains an oil tank 29 containing a reservoir of hydraulic fluid, and a master cylinder (MC) 31 operated by a solenoid (SOL) 33 which receives the BR signal from the motor control 16.
  • the solenoid has a plunger 33a that controls the position of the master cylinder.
  • the master cylinder provides fluid through two lines 31a to the brakes, each of which contains brake shoes 32a that are squeezed against the guide rails by means of the caliper 32b, as shown in Fig 3.
  • Each brake contains a spring 40 which expands outwardly so as to force the pads against the rail, an action by which the brake is applied.
  • Each brake also contains two separate brake actuators or cylinders (BC) 32c on opposite sides of the spring.
  • BC brake actuators or cylinders
  • the governor senses that from the transducer and provides the ES signal to the brake control.
  • another solenoid 50 receives the signal and operates a release valve (RV) 52, and this "vents" the master cylinder to the tank, (i.e., releases the pressure in the lines 31a).
  • the ES signal thus interupts the operative connection between the master cylinder and the brake cylinders. Consequently, all pressure from brake cylinders 32c is eliminated, allowing the caliper to close immediately by operation of the spring, even if the BR signal is still applied.
  • a hydraulic pump may be used, but with a similar control that positively releases the brake cylinders. That is, even if a configuration like that is utilized, an electromechanical valve which is operated independently by the governor should still be employed to positively release the pressure on the brake actuators.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)
EP85402282A 1984-11-23 1985-11-22 Sicherheitsbremse für Aufzüge Withdrawn EP0183616A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8417901 1984-11-23
FR8417901A FR2573741B3 (fr) 1984-11-23 1984-11-23 Frein et dispositif de securite pour ascenseur

Publications (2)

Publication Number Publication Date
EP0183616A2 true EP0183616A2 (de) 1986-06-04
EP0183616A3 EP0183616A3 (de) 1987-11-11

Family

ID=9309894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402282A Withdrawn EP0183616A3 (de) 1984-11-23 1985-11-22 Sicherheitsbremse für Aufzüge

Country Status (7)

Country Link
EP (1) EP0183616A3 (de)
JP (1) JPS62500864A (de)
CN (1) CN1007613B (de)
AU (1) AU568036B2 (de)
CA (1) CA1262875A (de)
FR (1) FR2573741B3 (de)
WO (1) WO1986003184A1 (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377788A (en) * 1992-08-08 1995-01-03 C. Haushahn Gmbh & Co. Safety catch device for elevators
EP0651724A4 (de) * 1992-07-24 1995-10-18 Hollister Whitney Elevator Aufzugsbackenbremse betätigt durch feder.
GB2349865A (en) * 1999-05-13 2000-11-15 Bode & Son Ltd F Arresting assembly
EP1067084A1 (de) * 1999-06-25 2001-01-10 Inventio Ag Vorrichtung und Verfahren zur Verhinderung von Vertikalverschiebungen und Vertikalschwingungen an Lastaufnahmemitteln von Vertikalförderanlagen
US6193026B1 (en) 1997-12-22 2001-02-27 Otis Elevator Company Elevator brake
US6981575B2 (en) * 1999-09-27 2006-01-03 Otis Elevator Company Concrete rail safety device for an elevator car
EP1748017A4 (de) * 2004-05-20 2010-01-27 Mitsubishi Electric Corp Notstopp-vorrichtung für aufzug
EP2033923A3 (de) * 2006-03-16 2010-08-25 ThyssenKrupp Elevator AG Verfahren zum Überwachen einer federkraftbetätigten Bremse
WO2010131969A1 (en) * 2009-05-13 2010-11-18 Thomas Regout International B.V. Device for suspension of substantially vertically movable objects and automatic measurement and adjustment system therefore
EP2181061A4 (de) * 2007-08-31 2012-01-18 John W Boyd Hydraulische hebebühnenanordnung
WO2014021896A1 (en) * 2012-08-02 2014-02-06 Otis Elevator Company Hydraulic brake system for elevator
CN104495584A (zh) * 2014-12-11 2015-04-08 吴家集 气动曳引系统
CN105398907A (zh) * 2015-12-28 2016-03-16 陈勇 电梯箱体防跌落装置之过速自动减速装置
CN107954292A (zh) * 2016-10-14 2018-04-24 通力股份公司 避免电梯系统中安全机构意外脱扣的方法和执行其的控制器
CN109095308A (zh) * 2018-07-24 2018-12-28 温州大学 一种电梯轮槽磨耗可靠度检测方法
CN110143505A (zh) * 2019-05-20 2019-08-20 嘉世达电梯有限公司 一种电梯防坠落装置
CN111532939A (zh) * 2020-04-30 2020-08-14 山西新富升机器制造有限公司 一种摩擦提升机钢丝绳智能防滑系统及控制方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209325A (en) * 1991-04-12 1993-05-11 Eaton-Kenway, Inc. Braking apparatus and method for storage and retrieval vehicles
ATE175946T1 (de) * 1993-10-18 1999-02-15 Inventio Ag Bremssicherheitseinrichtung für eine aufzugskabine
CN101979302B (zh) * 2010-10-27 2013-01-02 曹锦泉 可变配重电梯及液压电梯
CN103264946A (zh) * 2013-04-07 2013-08-28 三洋电梯(珠海)有限公司 一种无对重装置式电梯
US20160152441A1 (en) * 2013-04-30 2016-06-02 Inventio Ag Hydraulic brake system
CN104627773A (zh) * 2013-11-14 2015-05-20 中国人民解放军军械工程学院 独立式电梯快速响应多级安全防护系统
CN104340804A (zh) * 2014-10-30 2015-02-11 国家电网公司 电梯紧急制动装置
CN105035906A (zh) * 2015-08-21 2015-11-11 李宝 一种带有防坠落装置的垂直升降电梯
US10336577B2 (en) * 2016-05-18 2019-07-02 Otis Elevator Company Braking system for an elevator system
CN108002168B (zh) 2016-10-27 2021-04-02 奥的斯电梯公司 远程触发装置，限速器组件以及电梯

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896776A (en) * 1928-02-17 1933-02-07 Westinghouse Electric & Mfg Co Multiple elevator system
GB345035A (en) * 1929-02-06 1931-03-19 Ass Elect Ind Improvements in or relating to safety apparatus for elevators and the like
US1803762A (en) * 1929-07-05 1931-05-05 Otis Elevator Co Elevator safety apparatus
US1948746A (en) * 1930-11-26 1934-02-27 Westinghouse Elec Elevator Co Elevator safety device
GB377059A (en) * 1930-11-26 1932-07-21 Westinghouse Electric & Mfg Co Improvements in or relating to safety devices for elevators
US1934508A (en) * 1932-02-06 1933-11-07 Westinghouse Elec Elevator Co Elevator safety
US2122943A (en) * 1935-08-15 1938-07-05 Jaeckel Franz Otto Safety catch for hoist conveyeances
US2925151A (en) * 1954-07-26 1960-02-16 Clifford E Chandler Mine cage safety device
US3155199A (en) * 1963-10-11 1964-11-03 Goodyear Tire & Rubber Spring applied brake
SU897685A2 (ru) * 1980-04-24 1982-01-15 Всесоюзный Научно-Исследовательский Институт Горной Механики Им. М.М.Федорова Ловитель парашюта с тормозными канатами дл улавливани и остановки шахтной клети

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651724A4 (de) * 1992-07-24 1995-10-18 Hollister Whitney Elevator Aufzugsbackenbremse betätigt durch feder.
US5377788A (en) * 1992-08-08 1995-01-03 C. Haushahn Gmbh & Co. Safety catch device for elevators
US6193026B1 (en) 1997-12-22 2001-02-27 Otis Elevator Company Elevator brake
GB2349865A (en) * 1999-05-13 2000-11-15 Bode & Son Ltd F Arresting assembly
EP1067084A1 (de) * 1999-06-25 2001-01-10 Inventio Ag Vorrichtung und Verfahren zur Verhinderung von Vertikalverschiebungen und Vertikalschwingungen an Lastaufnahmemitteln von Vertikalförderanlagen
US6318505B1 (en) * 1999-06-25 2001-11-20 Inventio Ag Device and method for preventing vertical displacements and vertical vibrations of the load carrying means of vertical conveyors
US6981575B2 (en) * 1999-09-27 2006-01-03 Otis Elevator Company Concrete rail safety device for an elevator car
EP1748017A4 (de) * 2004-05-20 2010-01-27 Mitsubishi Electric Corp Notstopp-vorrichtung für aufzug
US9206016B2 (en) 2006-03-16 2015-12-08 Thyssenkrupp Elevator Ag Elevator drive
US9051157B2 (en) 2006-03-16 2015-06-09 Thyssenkrupp Elevator Ag Elevator drive
EP2033923A3 (de) * 2006-03-16 2010-08-25 ThyssenKrupp Elevator AG Verfahren zum Überwachen einer federkraftbetätigten Bremse
EP2181061A4 (de) * 2007-08-31 2012-01-18 John W Boyd Hydraulische hebebühnenanordnung
US8210319B2 (en) 2007-08-31 2012-07-03 John W. Boyd Hydraulic elevating platform assembly
WO2010131969A1 (en) * 2009-05-13 2010-11-18 Thomas Regout International B.V. Device for suspension of substantially vertically movable objects and automatic measurement and adjustment system therefore
WO2014021896A1 (en) * 2012-08-02 2014-02-06 Otis Elevator Company Hydraulic brake system for elevator
US9688510B2 (en) 2012-08-02 2017-06-27 Otis Elevator Company Hydraulic brake system for elevator
CN104495584A (zh) * 2014-12-11 2015-04-08 吴家集 气动曳引系统
CN105398907A (zh) * 2015-12-28 2016-03-16 陈勇 电梯箱体防跌落装置之过速自动减速装置
CN107954292A (zh) * 2016-10-14 2018-04-24 通力股份公司 避免电梯系统中安全机构意外脱扣的方法和执行其的控制器
CN109095308A (zh) * 2018-07-24 2018-12-28 温州大学 一种电梯轮槽磨耗可靠度检测方法
CN109095308B (zh) * 2018-07-24 2020-04-21 温州大学 一种电梯轮槽磨耗可靠度检测方法
CN110143505A (zh) * 2019-05-20 2019-08-20 嘉世达电梯有限公司 一种电梯防坠落装置
CN111532939A (zh) * 2020-04-30 2020-08-14 山西新富升机器制造有限公司 一种摩擦提升机钢丝绳智能防滑系统及控制方法

Also Published As

Publication number Publication date
FR2573741B3 (fr) 1987-03-20
WO1986003184A1 (en) 1986-06-05
EP0183616A3 (de) 1987-11-11
CA1262875A (en) 1989-11-14
JPS62500864A (ja) 1987-04-09
FR2573741A1 (fr) 1986-05-30
CN1007613B (zh) 1990-04-18
AU5196586A (en) 1986-06-18
AU568036B2 (en) 1987-12-10
CN85109248A (zh) 1986-07-02

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Inventor name: JUNQUAS, JEAN-MICHEL

Inventor name: VIVIEN, RENE