EP0957059A2 - Sicherheitsbremsfangvorrichtung für einen Aufzug - Google Patents

Sicherheitsbremsfangvorrichtung für einen Aufzug Download PDF

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Publication number
EP0957059A2
EP0957059A2 EP99500075A EP99500075A EP0957059A2 EP 0957059 A2 EP0957059 A2 EP 0957059A2 EP 99500075 A EP99500075 A EP 99500075A EP 99500075 A EP99500075 A EP 99500075A EP 0957059 A2 EP0957059 A2 EP 0957059A2
Authority
EP
European Patent Office
Prior art keywords
braking
cabin
housing
braking device
rail
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Withdrawn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
EP99500075A
Other languages
English (en)
French (fr)
Other versions
EP0957059A3 (de
Inventor
Miguel A. Madoz Michaus
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.)
Orona S Coop
Original Assignee
Orona S Coop
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 Orona S Coop filed Critical Orona S Coop
Publication of EP0957059A2 publication Critical patent/EP0957059A2/de
Publication of EP0957059A3 publication Critical patent/EP0957059A3/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Withdrawn legal-status Critical Current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
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Definitions

  • the present invention relates to the safety braking of a lift cabin, guided by a pair of side rails attached to the, structure of the building, the braking device being secured to the cabin to stop it in the event of overspeed when the cabin is either ascending or descending.
  • lift cabins should have a self-limiting device to safeguard persons in case of uncontrolled speed, not only during cabin descent, but also in ascent as well.
  • the braking force should be different depending on the direction of travel and on the weight of the cabin and of its counterweight, and it should not be excessive so as to avoid sudden decelerations.
  • EP-440839 shows a safety braking system in which the device itself reduces the overspeed of an lift cabin which has a counterweight suspended by drive ropes, a pulley type speed controller with an actuating cable that detects the overspeed, two braking devices on each rail, one for each direction of travel, and an operating lever for each braking device, connected to the actuating rope.
  • Each of the braking devices has a caliper that straddles the rail and an intermediate retaining wedge as well as means for adjusting the braking force of each of the two devices, which are independent of each other.
  • Each braking caliper is attached to the cabin and the braking element is a retaining wedge, which moves linearly between the caliper arms to exert a friction force with its opposite face against the rail in proportion to its linear travel.
  • the means of braking force adjustment are stop screws governing the length of this travel.
  • the solution known in EP-440839 adds a second braking device for the upward speed to the cabins already installed prior to the afore-mentioned regulation.
  • US-4240529 describes a safety brake to act in case of cabin overspeed during descent only. It brakes smoothly by application of the pressure of the braking caliper against the rail in proportion to the overspeed. It employs an actuating wedge, which moves linearly between the rail and the caliper to move the latter against the rail, and it exerts a braking force to the extent that a graduated disc spring is compressed. The brake caliper is guided on transverse rods attached to the cabin.
  • the object of the invention is a safety braking device, mounted on each guide rail of an lift cabin to prevent its overspeed in cabin ascent and descent by means of independent actuating means, as defined in claim 1.
  • the braking device according to the invention is of compact construction, and they are equal units mounted in both rails, they being operated at the same time by the same lever connected to the activating cable.
  • the braking device is the caliper type clasping the rail on both sides, and it has a moving active part enclosed entirely in a housing secured to the cabin.
  • the active part comprises a caliper body, guide means for the transverse movement of the caliper during braking, a caliper actuating wedge, and a wedge operating mechanism.
  • the active part of the braking device is operated by means of a lever connected to the afore-said actuating cable, and all its constituent parts form a single indivisible body, acting in the same way in either direction of travel, but with a different braking force.
  • the braking force and friction against the rail is exerted with a single, easily replaceable brake shoe, belonging to the caliper body.
  • the braking device also has means belonging to the actual active part to return the caliper body and the actuating mechanism to its initial rest position after bringing the cabin to a halt and detaching it from the rail.
  • the preferred embodiment of braking device 1 comprises a housing 20 secured to the cabin by means of rear and side screws 20 a , and an active part 2 moving in housing 20 according to arrows 22.
  • the active part 2 comprises a caliper body 3, a replaceable shoe 3 which presses against one of the sides of guide rail 21, an actuating wedge 6 pivoting around the centre pin 7, an actuating mechanism formed by the two hinged links 11 and 12 and roller 5, a pair of disc springs 9 for regulating the braking force, and rods 15 and springs 16 to push active part 2 to its rest position.
  • the whole active part 2 is guided in its movement by the two pairs of side lugs 25, in the direction of arrows 22, housed in the respective slot 26 in the housing, in order to bring shoe 3 a up against rail 21 during braking, whilst also preventing the relative movements of active part 2 in the other two directions.
  • the travel of active part 2 is governed by stop screw 18, threaded into one of the side walls of said housing 20, and by helical spring 16 against the other side wall.
  • the overspeed preventer and the actuating rope are known items, which have not been represented in the drawings.
  • the first link 11 of the brake actuating mechanism is connected at point 19 to the operating lever, which moves when actuated in either of the vertical directions of arrows 23, depending on whether the cabin is travelling upwards or downwards.
  • the second link 12 is hinged to link 11 by means of a pivot pin 11 a and roller 5 is connected to link 12 by means of swivel pin 5 a .
  • Roller 5 runs on the side of rail 21, within housing 14 formed between rail 21 and wedge 6, in either of the two directions 24.
  • roller 5 is held in its rest position, as long as lever 10 connected to the operating rope is not actuated, as shown in figure 1, resting against the apex of the central angle of wedge 6 under the effect of tension spring 6, which draws link 12 towards link 11.
  • the link 11 is pushed up or down according to arrow 23, pivoting around floating the pin 8.
  • roller 5 pushes wedge 6, causing it to pivot on its centre pin, inserted in caliper body 3, in one direction or the other depending on whether the braking is during ascent or descent.
  • the braking force regulating disc springs 9 are housed in caliper body 3.
  • the pivot pin 8 of the first link 11 is connected by means of a synchronizing rod 8 c to its counterpart pivot pin in the second rail device 21, so that operating lever 10, connected at point 19 of the first link 11, operates the braking devices of both rails at the same time.
  • braking device 1 is disengaged from rail 21, moved downwards by the weight of the cabin, and roller 5 returns to its rest position drawn by spring 13, the rotation of link 11 being released by the opposing force of torsion spring 8 b .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP99500075A 1998-05-13 1999-05-11 Sicherheitsbremsfangvorrichtung für einen Aufzug Withdrawn EP0957059A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9800998 1998-05-13
ES9800998A ES2146167B1 (es) 1998-05-13 1998-05-13 Freno de seguridad para una cabina de ascensor.

Publications (2)

Publication Number Publication Date
EP0957059A2 true EP0957059A2 (de) 1999-11-17
EP0957059A3 EP0957059A3 (de) 2000-12-20

Family

ID=8303764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99500075A Withdrawn EP0957059A3 (de) 1998-05-13 1999-05-11 Sicherheitsbremsfangvorrichtung für einen Aufzug

Country Status (2)

Country Link
EP (1) EP0957059A3 (de)
ES (1) ES2146167B1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001089973A1 (de) * 2000-05-25 2001-11-29 Inventio Ag Bremseinrichtung für einen aufzug
EP1283189A1 (de) * 2001-08-07 2003-02-12 Cobianchi Liftteile Ag Bremsfangvorrichtung, insbesondere für Aufzugskabinen
EP1557390A1 (de) * 2004-01-22 2005-07-27 Inventio Ag Sicherheitseinrichtung für einen Aufzug
US6997287B2 (en) * 2000-01-11 2006-02-14 Kabushiki Kaisha Toshiba Elevator emergency stopping device
CN101575062B (zh) * 2009-05-18 2011-05-11 杭州沪宁电梯配件有限公司 非对称渐进式安全钳
CN102092617A (zh) * 2011-01-11 2011-06-15 西安交通大学苏州研究院 一种垂直升降设备的防坠装置
CN105883523A (zh) * 2016-06-28 2016-08-24 爱默生电梯有限公司 一种别墅电梯用瞬时式安全钳
CN105947832A (zh) * 2016-06-28 2016-09-21 爱默生电梯有限公司 一种用于别墅电梯的瞬时式安全钳
CN108382947A (zh) * 2018-03-29 2018-08-10 福建江夏学院 一种电梯液压减速装置
EP3702310A1 (de) * 2019-02-27 2020-09-02 Otis Elevator Company Aufzugssicherheit mit übersetzendem sicherheitsblock
US11235949B2 (en) 2017-07-21 2022-02-01 Otis Elevator Company Safety device, elevator safety system and elevator system
US11325810B2 (en) * 2014-11-18 2022-05-10 Suzhou Torin Drive Equipment Co., Ltd. Traction sheave safety device and elevator car emergency stop method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116548A (en) * 1974-07-31 1976-02-09 Daifuku Machinery Works Shokosetsubiniokeru ratsukaboshisochi
US4078634A (en) * 1976-05-24 1978-03-14 Standard Pressed Steel Co. Lift apparatus and safety bracket usable therewith
JPS62205983A (ja) * 1986-03-07 1987-09-10 株式会社日立製作所 エレベ−タ−の非常止め装置
EP0432634A2 (de) * 1989-12-14 1991-06-19 KONE Elevator GmbH Fangvorrichtung
EP0543337A2 (de) * 1991-11-18 1993-05-26 KONE Elevator GmbH Doppelseitige Fangvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE525684C (de) * 1927-11-04 1931-05-27 Otis Aufzugswerke G M B H Sicherheitsbremse fuer Fahrkoerbe von Aufzuegen
EP0161287A1 (de) * 1983-11-14 1985-11-21 Cobianchi Liftteile Ag Bremsfangvorrichtung insbesondere für aufzugskabinen
ES2043130T5 (es) * 1990-02-06 1999-05-01 Thyssen Aufzuege Gmbh Dispositivo que impide las aceleraciones o movimientos incontrolados de una cabina o portacargas.
CH684190A5 (de) * 1991-07-04 1994-07-29 Inventio Ag Gleitfangvorrichtung für Aufzüge.
AU1763697A (en) * 1996-03-01 1997-09-16 Cobianchi Liftteile Ag Safety catch and brake block, in particular for lift cars

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116548A (en) * 1974-07-31 1976-02-09 Daifuku Machinery Works Shokosetsubiniokeru ratsukaboshisochi
US4078634A (en) * 1976-05-24 1978-03-14 Standard Pressed Steel Co. Lift apparatus and safety bracket usable therewith
JPS62205983A (ja) * 1986-03-07 1987-09-10 株式会社日立製作所 エレベ−タ−の非常止め装置
EP0432634A2 (de) * 1989-12-14 1991-06-19 KONE Elevator GmbH Fangvorrichtung
EP0543337A2 (de) * 1991-11-18 1993-05-26 KONE Elevator GmbH Doppelseitige Fangvorrichtung

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6997287B2 (en) * 2000-01-11 2006-02-14 Kabushiki Kaisha Toshiba Elevator emergency stopping device
US6823969B2 (en) 2000-05-25 2004-11-30 Inventio Ag Braking device for an elevator
AU785130B2 (en) * 2000-05-25 2006-09-28 Inventio Ag Brake device for a lift
WO2001089973A1 (de) * 2000-05-25 2001-11-29 Inventio Ag Bremseinrichtung für einen aufzug
EP1283189A1 (de) * 2001-08-07 2003-02-12 Cobianchi Liftteile Ag Bremsfangvorrichtung, insbesondere für Aufzugskabinen
EP1557390A1 (de) * 2004-01-22 2005-07-27 Inventio Ag Sicherheitseinrichtung für einen Aufzug
CN101575062B (zh) * 2009-05-18 2011-05-11 杭州沪宁电梯配件有限公司 非对称渐进式安全钳
CN102092617A (zh) * 2011-01-11 2011-06-15 西安交通大学苏州研究院 一种垂直升降设备的防坠装置
US11325810B2 (en) * 2014-11-18 2022-05-10 Suzhou Torin Drive Equipment Co., Ltd. Traction sheave safety device and elevator car emergency stop method thereof
CN105883523A (zh) * 2016-06-28 2016-08-24 爱默生电梯有限公司 一种别墅电梯用瞬时式安全钳
CN105947832B (zh) * 2016-06-28 2017-12-19 爱默生电梯有限公司 一种用于别墅电梯的瞬时式安全钳
CN105947832A (zh) * 2016-06-28 2016-09-21 爱默生电梯有限公司 一种用于别墅电梯的瞬时式安全钳
US11235949B2 (en) 2017-07-21 2022-02-01 Otis Elevator Company Safety device, elevator safety system and elevator system
CN108382947A (zh) * 2018-03-29 2018-08-10 福建江夏学院 一种电梯液压减速装置
CN108382947B (zh) * 2018-03-29 2023-09-15 广东亚太通尼电梯有限公司 一种电梯液压减速装置
EP3702310A1 (de) * 2019-02-27 2020-09-02 Otis Elevator Company Aufzugssicherheit mit übersetzendem sicherheitsblock
CN111620216A (zh) * 2019-02-27 2020-09-04 奥的斯电梯公司 带有平移的安全设备块的电梯安全设备
CN111620216B (zh) * 2019-02-27 2022-04-08 奥的斯电梯公司 带有平移的安全设备块的电梯安全设备

Also Published As

Publication number Publication date
EP0957059A3 (de) 2000-12-20
ES2146167B1 (es) 2001-04-01
ES2146167A1 (es) 2000-07-16

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