EP0490090B1 - Dispositif d'arrêt pour cabine d'ascenseur et pour contrepoids - Google Patents

Dispositif d'arrêt pour cabine d'ascenseur et pour contrepoids Download PDF

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Publication number
EP0490090B1
EP0490090B1 EP91119151A EP91119151A EP0490090B1 EP 0490090 B1 EP0490090 B1 EP 0490090B1 EP 91119151 A EP91119151 A EP 91119151A EP 91119151 A EP91119151 A EP 91119151A EP 0490090 B1 EP0490090 B1 EP 0490090B1
Authority
EP
European Patent Office
Prior art keywords
bracket
roller
brake
catching
housing
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.)
Expired - Lifetime
Application number
EP91119151A
Other languages
German (de)
English (en)
Other versions
EP0490090A1 (fr
Inventor
Günter Frömberg
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.)
Inventio AG
Original Assignee
Inventio AG
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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Publication of EP0490090A1 publication Critical patent/EP0490090A1/fr
Application granted granted Critical
Publication of EP0490090B1 publication Critical patent/EP0490090B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 invention relates to a brake safety device for an elevator car and a counterweight consisting of a housing comprising a free leg of a guide rail with a recess in which a brake plate is arranged on one side of the free leg and a bracket on the other side of the free leg forms a wedge-shaped gap with the free leg, in which a catch roller guided by the bracket executes a relative upward movement when braking, a braking force being generated between the brake plate and the free leg.
  • a brake safety device has become known with a housing enclosing the free leg of a guide rail, in which a leaf spring extending obliquely to the free leg over the height of the housing is arranged.
  • the leaf spring ends in rotatable joints arranged on the housing.
  • the free leg together with the leaf spring, forms a wedge-shaped, upwardly narrowing gap in which a cylindrical roller is slidably arranged.
  • the roller is pulled up using a linkage.
  • the roller wedges between the leaf spring and one side of the free leg.
  • the wedged roller triggers the braking process, in which, on the other side of the free leg, the brake lining arranged on the housing is pressed onto the rail surface.
  • a brake safety device has become known in which a housing comprises a rod-shaped guide rail.
  • a brake shoe is arranged on the housing on one side of the guide rail.
  • the housing On the other side of the guide rail, the housing has flanges with long slots. In the diagonal to Long slots running on the guide rail guide the axis of a roller which is held by a linkage. When braking, the linkage lifts the cylindrical roller until the roller rolls on the guide rail and the brake shoe is pressed against the guide rail.
  • a disadvantage of the brake safety device known from GB 2 136 773 and US 2 897 920 is that the blocked roller itself and also the guide rail along the stopping distance are damaged. After each braking process, the roller and the guide rail must be checked and, in extreme cases, replaced.
  • a brake safety device with a guide wedge and a counter shoe which are guided along a free leg of a guide rail during normal operation.
  • the guide wedge is rotatably supported at the lower end by means of a guide pin and held by an adjustable spring assembly at the upper end.
  • a roll holder is deflected upwards.
  • a catch roller is moved upwards over a support from the rest position along the edge of the guide wedge.
  • the guide wedge is swung out to the right and the spring assembly is put under tension.
  • the upward movement of the catch roller is limited by a brake wedge arranged at the upper end of the catch wedge.
  • a disadvantage of the device known from DE 26 04 157 is the large mechanical structure of the rotatably mounted guide wedge and the spring assembly acting on the upper end of the guide wedge. Another disadvantage of the known device is that before commissioning and after a malfunction, additional adjustment work on the spring assembly and brake wedge is unavoidable.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of avoiding the disadvantages of the known device and of designing a brake safety device in such a way that a brake delay that can be adapted to different total weights of the elevator car or counterweight can be achieved with fewer individual parts.
  • 1 denotes a housing with a recess 2 extending on the front of the housing over the entire height of the housing, at one end of which a brake plate 3 is arranged, next to which a free leg 4 of a guide rail 5 is immersed.
  • a trapezoidal bracket 6 with a rectangular extension 7 protruding from the housing 1 is inserted.
  • the bracket 6 has on the guide rail side an obliquely upward-extending link 9 which forms a wedge gap 8 and has a U-shaped cross section which merges into a circular end at the top and bottom.
  • the two end faces of the link 9 serve as runways 10 for roller axles 12 arranged on a cylindrical catch roller 11 knurled on the surface of the jacket.
  • In the lower part of the link 9 there is an elevation in the form of an additional control bevel 13 provided with which the catch roller 11 is guided more quickly to the free leg 4 of the guide rail 5.
  • the recess 2 ends on the side opposite the brake plate 3 with a wedge bevel 14 on which the bracket 6 rests.
  • a slot 15 extending in the vertical direction through the bracket 6 and deep into the extension 7 gives the bracket 6 the necessary resilience.
  • a screw 16 is connected to the housing 1 arranged on a support 17, the other end of the screw 16 is connected to a tab 21 arranged on the extension 7.
  • a height adjustment A of the extension 7 effected by means of the screw 16 results in a transverse adjustment B of the bracket 6.
  • the bracket 6 slidably held by a cover plate 18 slides along the wedge bevel 14 and changes the distance of the catching roller 11 to the free leg 4 of the guide rail 5.
  • the distance of the catching roller 11 to the free leg 4 determines the one to be adapted to different total weights of elevator car and counterweight Brake delay as well as the deflection of the bracket 6, designated C.
  • a speed limiter (not shown) actuates a lever mechanism, denoted by 19, by means of traction elements, which is connected to one end of an actuating arm 20 which plunges into the recess 2.
  • the catch roller 11, which is rotatably arranged at the other end of the actuating arm 20, is deflected from its rest position and pulled upwards in the wedge gap 8, the roller axes 12 rolling off the path predetermined by the roller tracks 10. Due to the upward relative movement along the runway 10 of the catching roller 11, the brake plate 3 becomes the free leg 4 the guide rail 5 brought into engagement. Via the resilient bracket 6, the catching roller 11 is pressed more and more onto the free leg 4 without internal friction losses and the elevator car or the counterweight is braked to a standstill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (8)

  1. Dispositif d'arrêt pour une cabine d'ascenseur ou pour un contre-poids, formé d'un carter (1) qui entoure une branche libre (4) d'un rail de guidage (5) et qui comporte une cavité (2) dans laquelle sont disposés d'un côté de la branche libre (4) une plaque de frein (3) et de l'autre côté de ladite branche libre (4) un étrier (6) qui définit avec la branche libre (4) une fente cunéiforme (8) pour un rouleau d'arrêt (11) guidé par l'étrier (6), une force de freinage étant générée entre la plaque de frein (3) et la branche libre (4),
       caractérisé en ce que l'étrier (6) comporte des moyens (16, 21) pour ajuster l'écartement entre le rouleau d'arrêt (11) et la branche libre (4), l'étrier (6) étant mobile le long d'un chanfrein cunéiforme (14) disposé au niveau du carter (1), et en ce que l'étrier (6) comporte, du côté du rail de guidage, une coulisse (9) à section en U qui définit avec la branche libre (4) la fente cunéiforme (8), les surfaces frontales de la coulisse (9) servant de chemins de roulement (10) pour les axes (12) du rouleau d'arrêt (11).
  2. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que la coulisse (9) se transforme, en bas et en haut, en une extrémité circulaire qui limite la course de roulement du rouleau d'arrêt (11).
  3. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que la coulisse (9) comporte, dans la partie inférieure, une partie surélevée en forme de chanfrein de commande supplémentaire (13), grâce à laquelle le rouleau d'arrêt (11) est amené plus rapidement vers la branche libre (4) du rail de guidage (5).
  4. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que l'étrier (6) comporte un prolongement rectangulaire (7) dépassant du carter (1), sur lequel sont prévus des moyens pour déplacer l'étrier (6) le long du chanfrein cunéiforme (14).
  5. Dispositif d'arrêt selon la revendication 1, caractérisé en ce qu'il est prévu une fente longitudinale (15) traversant l'étrier (6) dans le sens vertical et s'avançant jusque dans le prolongement (7), qui confère à l'étrier (6) l'élasticité nécessaire.
  6. Dispositif d'arrêt selon la revendication 1, caractérisé en ce qu'il est prévu, sur le carter (1), une plaque de recouvrement (18) qui maintient l'étrier (6) mobile.
  7. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que le rouleau d'arrêt (11) présente une surface d'enveloppe cylindrique moletée pourvue d'axes de rouleau (12), disposés sur les surfaces frontales du cylindre, qui roulent sur les chemins de roulement (10).
  8. Dispositif d'arrêt selon la revendication 1, caractérisé en ce qu'il est prévu un bras d'actionnement (20) qui met le rouleau d'arrêt (11) en mouvement en cas d'incident.
EP91119151A 1990-12-07 1991-11-11 Dispositif d'arrêt pour cabine d'ascenseur et pour contrepoids Expired - Lifetime EP0490090B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH387690 1990-12-07
CH3876/90 1990-12-07

Publications (2)

Publication Number Publication Date
EP0490090A1 EP0490090A1 (fr) 1992-06-17
EP0490090B1 true EP0490090B1 (fr) 1995-08-09

Family

ID=4265388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119151A Expired - Lifetime EP0490090B1 (fr) 1990-12-07 1991-11-11 Dispositif d'arrêt pour cabine d'ascenseur et pour contrepoids

Country Status (7)

Country Link
US (1) US5224570A (fr)
EP (1) EP0490090B1 (fr)
JP (1) JP2931151B2 (fr)
CN (1) CN1022398C (fr)
AT (1) ATE126173T1 (fr)
BR (1) BR9105276A (fr)
DE (1) DE59106220D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653371A (zh) * 2011-03-03 2012-09-05 株式会社日立制作所 电梯控制装置及其控制方法

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU683796B2 (en) * 1992-03-26 1997-11-20 Boral Johns Perry Industries Pty Ltd Safety gear for lift cars
FI103962B1 (fi) * 1996-11-07 1999-10-29 Kone Corp Tarraaja
FI101782B (fi) * 1996-11-07 1998-08-31 Kone Corp Liukutarraaja
US6082506A (en) * 1998-06-29 2000-07-04 Huang; Pei Ping Breaking arrangement for elevating work platform
ES1043007Y (es) * 1998-12-02 2000-05-01 Dominguez Luis Fernando Simal Elemento elastico para frenos de sistemas guiados.
ES2154200B1 (es) * 1998-12-22 2001-11-01 Dynatech Dynamics & Technology Sistema de frenado de emergencia para ascensores, de doble efecto, ascendente y descendente.
US6161653A (en) * 1998-12-22 2000-12-19 Otis Elevator Company Ropeless governor mechanism for an elevator car
EP1431230B1 (fr) * 2001-06-29 2013-11-20 Mitsubishi Denki Kabushiki Kaisha Dispositif de freinage de secours pour ascenseur
JP2004262652A (ja) * 2002-09-23 2004-09-24 Inventio Ag エレベータ用の安全装置
US7374021B2 (en) * 2002-10-09 2008-05-20 Otis Elevator Company Combined elevator guiding and safety braking device
AU2002343491A1 (en) * 2002-10-09 2004-05-04 Otis Elevator Company Elevator safety device
ES2395817T3 (es) * 2002-10-09 2013-02-15 Otis Elevator Company Dispositivo combinado de guiado y freno de seguridad para ascensor
US7097003B2 (en) 2003-07-21 2006-08-29 The Peelle Company Ltd. Elevator landing door broken chain safety device
JP2007529906A (ja) * 2004-03-15 2007-10-25 富士電機ホールディングス株式会社 有機双安定電気デバイス及び有機ｌｅｄディスプレーのための駆動器並びにそれらのための駆動方法
JP5000106B2 (ja) * 2004-07-07 2012-08-15 インベンテイオ・アクテイエンゲゼルシヤフト エレベータ設備を移動させる装置
KR100904840B1 (ko) * 2005-03-25 2009-06-25 오티스 엘리베이터 컴파니 조합형 엘리베이터 안내 및 안전 제동 장치
EP1721858B1 (fr) * 2005-05-09 2008-07-16 Dynatech, Dynamics & Technology, S. L. Parachute pour un dispositif de sécurité graduel et bidirectionnel.
US7909142B2 (en) * 2006-05-19 2011-03-22 Hydro-Mobile Inc. Braking device for elevating platform assembly
MY143851A (en) * 2006-12-05 2011-07-15 Inventio Ag Braking device for holding and braking a lift cabin in a lift facility
WO2009018434A1 (fr) * 2007-07-31 2009-02-05 Thyssenkrupp Elevator Capital Corporation Procédé et appareil pour réduire à un minimum la remise à niveau des ascenseurs à vitesse élevée dans des immeubles de grande hauteur
JP5189027B2 (ja) * 2009-04-28 2013-04-24 株式会社日立製作所 エレベーターの制動装置及びエレベーター装置
JP5555070B2 (ja) * 2010-06-22 2014-07-23 株式会社日立製作所 自走式エレベータ及びこれに用いられる走行台車
FR2962722B1 (fr) * 2010-07-15 2012-07-13 Octe Dispositif de deprise, pour le deblocage d'un ascenseur apres fonctionnement du parachute en montee
KR101456403B1 (ko) * 2010-11-01 2014-10-31 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
ES2429502T3 (es) * 2011-05-20 2013-11-15 Kone Corporation Ascensor con fuerza de frenado variable según la posición
DE112012006231T5 (de) * 2012-04-16 2015-01-15 Mitsubishi Electric Corporation Aufzugsvorrichtung
IN2014DN10332A (fr) 2012-05-31 2015-08-07 Otis Elevator Co
KR101986928B1 (ko) * 2015-03-18 2019-06-07 미쓰비시덴키 가부시키가이샤 엘리베이터의 비상 멈춤 장치 및 엘리베이터 시스템
CN105000446B (zh) * 2015-08-13 2017-04-12 卫小兵 防止电梯轿厢意外移动装置
EP3677534B1 (fr) * 2019-01-02 2021-07-21 Otis Elevator Company Actioneur d'un dispositif de sécurité d'ascenseur
CN109969901A (zh) * 2019-03-29 2019-07-05 上海德圣米高电梯有限公司 一种电梯安全装置的触发机构
CN112897299B (zh) * 2021-01-14 2022-10-28 迅达（中国）电梯有限公司 对重缓冲机构、对重装置和电梯系统
CN117303156B (zh) * 2023-11-17 2024-04-19 广东华辉电梯配件有限公司 一种具有限位结构的安全钳

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DE925071C (de) * 1953-01-22 1955-03-10 Baudet Ets Keilfangvorrichtung an Personen- und Lastenaufzuegen
US2897920A (en) * 1958-01-28 1959-08-04 Dresser Ind Emergency brake for elevator cars
DE1756607A1 (de) * 1968-06-14 1970-04-09 Demag Ag Fangvorrichtung fuer ein Lastaufnahmegeraet
US3762512A (en) * 1971-10-29 1973-10-02 Us Elevator Corp Elevator rail grab safety apparatus
DE2604157A1 (de) * 1976-02-04 1977-08-11 Aufzugswerk Gall & Heckelmann Bremsfangvorrichtung
AT376952B (de) * 1983-03-21 1985-01-25 Otis Elevator Co Bremsfangvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102653371A (zh) * 2011-03-03 2012-09-05 株式会社日立制作所 电梯控制装置及其控制方法
CN102653371B (zh) * 2011-03-03 2014-07-16 株式会社日立制作所 电梯控制装置及其控制方法

Also Published As

Publication number Publication date
DE59106220D1 (de) 1995-09-14
JP2931151B2 (ja) 1999-08-09
CN1062121A (zh) 1992-06-24
EP0490090A1 (fr) 1992-06-17
JPH04286584A (ja) 1992-10-12
BR9105276A (pt) 1992-08-18
US5224570A (en) 1993-07-06
ATE126173T1 (de) 1995-08-15
CN1022398C (zh) 1993-10-13

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