EP1853504A1 - Dispositif de freinage ou d'arret d'une cabine d'ascenseur - Google Patents

Dispositif de freinage ou d'arret d'une cabine d'ascenseur

Info

Publication number
EP1853504A1
EP1853504A1 EP06703571A EP06703571A EP1853504A1 EP 1853504 A1 EP1853504 A1 EP 1853504A1 EP 06703571 A EP06703571 A EP 06703571A EP 06703571 A EP06703571 A EP 06703571A EP 1853504 A1 EP1853504 A1 EP 1853504A1
Authority
EP
European Patent Office
Prior art keywords
braking
roller
guide rail
groove
gap
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.)
Granted
Application number
EP06703571A
Other languages
German (de)
English (en)
Other versions
EP1853504B1 (fr
EP1853504B9 (fr
Inventor
Franz Josef Karner
Jürgen KARNER
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.)
Wittur Deutschland Holding GmbH
Original Assignee
Wittur AG
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 Wittur AG filed Critical Wittur AG
Publication of EP1853504A1 publication Critical patent/EP1853504A1/fr
Publication of EP1853504B1 publication Critical patent/EP1853504B1/fr
Application granted granted Critical
Publication of EP1853504B9 publication Critical patent/EP1853504B9/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 braking or catching device for an elevator car according to the preamble of claim 1.
  • Lifts are provided with braking or catching devices which serve to decelerate an elevator car in the event of an impermissibly high driving speed, as e.g. can occur in the event of a malfunction of the control or a cable break.
  • the activation of the catching or braking device is carried out in known such devices of a fixed in the shaft or engine room speed limiter, which is set in a movement of the elevator car in rotation.
  • a self-contained limiter rope is provided, which is deflected on the one hand at the speed limiter (usually at the highest point in the shaft) and on the other hand at a tension roller (usually at the lowest point in the shaft).
  • the governor rope is connected at one point to the brake device of the elevator car, so that it is entrained during a movement of the elevator car. If the speed is too high, the overspeed governor blocks the governor rope, causing the arrestor to trip, causing the elevator car to come to a standstill.
  • This structure has the advantage that it works purely mechanically and therefore can not be affected by power outages.
  • centrifugal governor may u.U. only too late (i.e., only at very high speed) trigger.
  • Another disadvantage is the relatively high cost. Apart from the actual braking device a circulating over the entire shaft rope is necessary, which must be performed up and down and also must be stretched.
  • a braking or catching device of the type mentioned in which the pressure body has two inclined ramp surfaces on which abut two on both sides of a guide rail attacking wedge-shaped brake elements.
  • the retaining member is formed by a solenoid which holds the brake members against the force of springs in a position in which a gap between the friction surfaces and the respective guide rail remains. If the solenoid is de-energized, the springs press the brake members into the gap to be narrowed between the ramp surfaces of the pressure hull and the guide rail, resulting in frictional engagement between the brake members and the guide rail and further increasing the contact pressure of the brake members ,
  • the friction surface of the brake member comes to rest on the guide rail with exactly the predetermined pressure, whereby the risk of uneven contact pressure is avoided on a guide rail, as may occur in the known solution described above.
  • the design of the depth of the gap and the groove (which form a kind of backdrop) can be set any desired delay in braking the elevator car in a simple manner.
  • the roll once in contact with the guide rail, unrolls therefrom and is thereby forced into the gap to the end, i. until the shoulders touch the gap next to the groove.
  • the distance there between the guide rail and the groove - which is slightly smaller than the diameter of the roller - together with the elasticity of the material determines the contact pressure.
  • a deceleration of the elevator car both in the downward movement as well as a movement can be made possible in a simple manner.
  • different deceleration values for the different directions of travel can be ensured in a simple manner by appropriate design of the depth of the gap and the groove.
  • the deceleration values when moving upwards should not exceed the value of 1 g (g is the gravitational acceleration), otherwise the passengers would lift off the floor of the elevator car, resulting in a significant risk of falls and thus injuries.
  • a pressure load on the guide rails can be avoided which, in the case of the connection of two different guide rails, can be avoided.
  • ment rails associated with pressure hull over a rigid support could result.
  • such a braking device is also suitable for elevators whose elevator cars are guided on only one or two guide rails fastened to one and the same wall.
  • FIG. 1 shows schematically a brake element according to the invention
  • Fig. 2 schematically shows a Bremsl. Catching device according to the invention in a horizontal section
  • FIG. 3 shows this braking or catching device in the direction of the arrow III of FIG. 2.
  • a braking member in the form of a roller 9 is provided, which is provided at its two end faces 10 (see FIG. 1) with shoulders 11.
  • the lateral surface of the roller 9 serves as a friction surface 12.
  • it is provided with a knurling or with a friction lining. It is intended to come to rest on the guide rail 2 (see FIG. 2).
  • FIG. 2 shows a braking device 14 according to the invention in a horizontal section.
  • This has a pressure body 19, which essentially corresponds to a U-profile, wherein the two legs 16, 16 'in the region of their free ends, the guide rail 2 comprise.
  • the pressure body 19 has at its leg 16 a gap 20 in which the roller. 9 is guided.
  • the gap 20 has a groove 21 which allows the reception of the friction surface 12 (see FIG. 1) of the roller 9.
  • the roller 9 is rotatably supported on an axis 22 (not shown in Fig. 2, see Fig. 3), which passes through an opening 23 in the leg 16 and is held in a holder 25.
  • This holder 25 is surrounded by a spring 28 which is formed as a compression spring and the roller 9 biases in the direction of the guide rail 2.
  • This spring 28 counteracts a solenoid (not shown) which is controlled by a device monitoring the speed of the elevator car. In this case, the solenoid is de-energized when too high a speed of the elevator car is detected. As a result, the spring 28 moves the holder 25 and thus the roller 9 against the guide rail 2, so that it comes to rest with its friction surface 12 (see FIG. 1) on the guide rail 2 (see FIG. 3) and is set in rotation.
  • the axle 22 of the roller 9 can also be attached to a conventional cable of a conventional speed limiter and be moved by this in the narrowing gap 20.
  • this type of safety gear is capable of being activated electrically (via the de-energized solenoid) or mechanically (via the cable).
  • the roller 9 rotates in a clockwise direction (as viewed in FIG. 3). As a result, the roller 9 rolls on the guide rail 2 and rises upwards. Since the distance between the groove 21 and the guide rail 2 to be reduced upward, the roller between the groove 21 and the guide rail 2 is clamped, whereby it rubs in the groove 21 and therefore brakes, so that the elevator car, not shown, comes to a standstill.
  • the friction surface 12 contacts the groove 21 at the location 41 (see FIG. 3), and at the location 42 the shoulders 11 (see FIG. 1) of the roller 9 contact the gap 20 (see FIG Fig. 3) next to the groove 21.
  • the depth of the groove 21 is correspondingly large, so that the friction surface 12 (see Fig. 1) there, the groove 21 (see Fig. 3) is not affected.
  • the movement path of the roller 9 is limited, without this having a significant influence on the braking force, because the friction in the region of the shoulders 11 (see FIG. 1) is relatively low (the shoulders are smooth).
  • the delays occurring can be predetermined accordingly. Due to the pivotable holder 25 and due to the opening 23, the roller 9 can move freely along the gap 20.
  • the roller 9 rotates counterclockwise and therefore rolls down from.
  • the gap 20 (or the groove 21) has approximately in the middle of a recess 31 for
  • Stiffness of the pressure body 19 in the lower region of a cut 32 is provided.
  • a correspondingly lower rigidity is effected in the section corresponding to an upward travel of the pressure body 19, and thus a lower contact pressure of the roller 9, resulting in a lower deceleration during braking.
  • the latter can also be done by a correspondingly different design of the course of the groove 21 above and below the recess 31.

Landscapes

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

Abstract

L'invention concerne un dispositif de freinage ou d'arrêt d'une cabine d'ascenseur guidée dans une cage le long de rails de guidage verticaux (2). Pour permettre une construction simple de ce dispositif, l'organe de freinage est constitué par un rouleau (9) dont l'axe est perpendiculaire au sens longitudinal du rail de guidage (2) et dont la surface d'enveloppe est constituée en tant que surface de frottement (12). Ledit rouleau est logé de façon coulissante avec des épaulements en retrait (11) dans une fente (20) d'un corps de pression (19) s'étendant parallèlement au rail de guidage correspondant (2), la fente (20) présentant une rainure (21) dont l'écart par rapport au rail de guidage (2) diminue en direction d'au moins une extrémité. Ledit rouleau (9) est connecté à un organe de retenue définissant la position de repos inactive du rouleau, et précontraint contre le rail de guidage (2) par l'intermédiaire d'un ressort (28). Lorsque l'organe de retenue libère le rouleau (9), celui-ci est comprimé contre le rail de guidage (2) et roule contre ce dernier. Le rouleau roule jusqu'à l'extrémité de la rainure (21) et se bloque à ce niveau, de telle manière que le frottement provoque un freinage de la cabine d'ascenseur.
EP06703571.7A 2005-01-21 2006-01-20 Dispositif de freinage ou d'arret d'une cabine d'ascenseur Active EP1853504B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT922005A AT501415B1 (de) 2005-01-21 2005-01-21 Brems- bzw. fangeinrichtung für eine aufzugskabine
PCT/EP2006/050332 WO2006077243A1 (fr) 2005-01-21 2006-01-20 Dispositif de freinage ou d'arret d'une cabine d'ascenseur

Publications (3)

Publication Number Publication Date
EP1853504A1 true EP1853504A1 (fr) 2007-11-14
EP1853504B1 EP1853504B1 (fr) 2013-03-13
EP1853504B9 EP1853504B9 (fr) 2014-06-04

Family

ID=36353324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06703571.7A Active EP1853504B9 (fr) 2005-01-21 2006-01-20 Dispositif de freinage ou d'arret d'une cabine d'ascenseur

Country Status (6)

Country Link
EP (1) EP1853504B9 (fr)
CN (1) CN101107190B (fr)
AT (1) AT501415B1 (fr)
ES (1) ES2412855T3 (fr)
RU (1) RU2389677C2 (fr)
WO (1) WO2006077243A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022100182U1 (de) 2022-01-13 2022-01-20 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung
DE202022100179U1 (de) 2022-01-13 2022-01-20 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung

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CN101233068B (zh) * 2006-07-26 2012-09-05 维托公开股份有限公司 一种用于电梯轿厢的制动或截停装置
DE102006043890A1 (de) * 2006-09-19 2008-03-27 Wittur Ag Selbstrückstellmechanismus für eine Bremsfangeinrichtung Typ BSG
ATE504532T1 (de) * 2006-11-08 2011-04-15 Otis Elevator Co Aufzugbremsvorrichtung
ES2353979T3 (es) * 2007-04-18 2011-03-08 Wittur Holding Gmbh Dispositivo de frenado o aprehensión con rodillo que corre parcialmente sobre revestimiento de bronce y con superficie de fricción inclinada .
WO2011145974A1 (fr) * 2010-05-18 2011-11-24 Lushnikov Andrey Vladimirovich Navire à l'ancre
US9169104B2 (en) * 2010-12-17 2015-10-27 Inventio Ag Activating a safety gear
CN103958385B (zh) * 2011-11-29 2016-11-16 因温特奥股份公司 具有复位机构的安全制动器
WO2014042936A2 (fr) 2012-09-14 2014-03-20 Valeant Pharmaceuticals International, Inc. Compositions et méthodes de blanchiment des dents
EP2837592A1 (fr) 2013-08-13 2015-02-18 Aplicaciones Electromecanicas Gervall, S.A. Système d'entraînement destiné à un engrenage de sécurité d'ascenseur
RU2596635C1 (ru) * 2015-07-31 2016-09-10 Публичное акционерное общество "Карачаровский механический завод" Ловитель кабины лифта
CN105173963A (zh) * 2015-08-10 2015-12-23 厦门升通电梯有限公司 电梯轿厢意外移动量控制装置
EA030810B1 (ru) * 2016-06-29 2018-09-28 Открытое Акционерное Общество "Могилевский Завод Лифтового Машиностроения" (Оао "Могилевлифтмаш") Ловитель кабины лифта двустороннего действия
DE202016103895U1 (de) * 2016-07-19 2017-10-20 Wittur Holding Gmbh Betätigungsorgan für eine Aufzugs-Bremseinrichtung
DE202017103555U1 (de) * 2017-06-14 2017-07-20 Wittur Holding Gmbh Hilfsantrieb für eine Bremsfangvorrichtung
CN108275539A (zh) * 2018-03-12 2018-07-13 界首市迅立达电梯有限公司 一种适用于老楼改造的电梯轿厢安全辅助装置
US10889467B2 (en) * 2018-05-08 2021-01-12 Otis Elevator Company Synchronization based on distance of magnet assembly to rail
WO2021160815A1 (fr) 2020-02-14 2021-08-19 Wittur Holding Gmbh Unité de déclenchement pour actionner un dispositif de freinage d'ascenseur
CN112193963A (zh) * 2020-09-30 2021-01-08 宁波宏大电梯有限公司 一种安全钳复位装置、电梯及安全钳复位方法

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FI103962B1 (fi) * 1996-11-07 1999-10-29 Kone Corp Tarraaja
ES2154200B1 (es) * 1998-12-22 2001-11-01 Dynatech Dynamics & Technology Sistema de frenado de emergencia para ascensores, de doble efecto, ascendente y descendente.
US6173813B1 (en) * 1998-12-23 2001-01-16 Otis Elevator Company Electronic control for an elevator braking system
ES2156730B1 (es) * 1999-05-28 2002-04-01 Lopla S L Sistema paracaidas en cabina de ascensores, de actuacion en subida y bajada.
CN2623667Y (zh) * 2002-09-05 2004-07-07 盛嘉勋 双向安全钳
EP1400476B1 (fr) * 2002-09-23 2009-10-21 Inventio Ag Parachute pour ascenseurs
JP4322518B2 (ja) * 2003-02-20 2009-09-02 東芝エレベータ株式会社 エレベータの安全装置

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022100182U1 (de) 2022-01-13 2022-01-20 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung
DE202022100179U1 (de) 2022-01-13 2022-01-20 Wittur Holding Gmbh Auslöseeinheit zum Betätigen einer Aufzugbremsvorrichtung
WO2023134982A1 (fr) 2022-01-13 2023-07-20 Wittur Holding Gmbh Unité de déclenchement destinée à actionner un dispositif de freinage d'ascenseur
WO2023134980A1 (fr) 2022-01-13 2023-07-20 Wittur Holding Gmbh Unité de libération pour actionner un dispositif de frein d'ascenseur

Also Published As

Publication number Publication date
EP1853504B1 (fr) 2013-03-13
EP1853504B9 (fr) 2014-06-04
ES2412855T3 (es) 2013-07-12
RU2007122633A (ru) 2009-01-27
CN101107190B (zh) 2010-10-13
AT501415A1 (de) 2006-08-15
WO2006077243B1 (fr) 2006-11-02
RU2389677C2 (ru) 2010-05-20
CN101107190A (zh) 2008-01-16
WO2006077243A1 (fr) 2006-07-27
AT501415B1 (de) 2009-01-15

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