EP2837592A1 - Système d'entraînement destiné à un engrenage de sécurité d'ascenseur - Google Patents

Système d'entraînement destiné à un engrenage de sécurité d'ascenseur Download PDF

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Publication number
EP2837592A1
EP2837592A1 EP13382330.2A EP13382330A EP2837592A1 EP 2837592 A1 EP2837592 A1 EP 2837592A1 EP 13382330 A EP13382330 A EP 13382330A EP 2837592 A1 EP2837592 A1 EP 2837592A1
Authority
EP
European Patent Office
Prior art keywords
caliper
safety gear
lift
driving system
joined
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Withdrawn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
EP13382330.2A
Other languages
German (de)
English (en)
Inventor
Martin Escofet Esteve
Raul Monge Teresa
Jesús María Herrero Ochoa
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.)
Aplicaciones Electromecanicas Gervall SA
Original Assignee
Aplicaciones Electromecanicas Gervall SA
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 Aplicaciones Electromecanicas Gervall SA filed Critical Aplicaciones Electromecanicas Gervall SA
Priority to EP13382330.2A priority Critical patent/EP2837592A1/fr
Publication of EP2837592A1 publication Critical patent/EP2837592A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B66B5/20—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 rotatable eccentrically-mounted members
    • 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 concerned refers to a driving system for a lift safety gear, this driving system being formed by a first fixed structure, joined to a second fixed structure, relative to the safety gear a mobile structure being mounted to this first fixed structure, which when displaced in relation to the same, acts on the driving body of the safety gear mechanism, in such a way that the driving system for the safety gear starts up upon receiving an electrical order signal, obtained from an electronic safety device built into the elevator facility.
  • a main object of the invention is, when blocking or wedging the brake caliper, via a roller linked to the same, against the cabin displacement guide or counterweight, an increase of the normal force against the guide is produced, thus causing the mobile structure to be displaced with respect to the fixed structure, acting on the safety gear mechanism in order to activate it.
  • the present specification describes a driving system for lift safety gears, to be applied generally in lift facilities.
  • PESSRAL Programmable Electronic Components and Systems in Safety related Applications for Lifts
  • electronic type device Various mechanisms for driving safety gears, based on an electrical order signal provided by a PESSRAL (Programmable Electronic Components and Systems in Safety related Applications for Lifts) or electronic type device, are known.
  • the reset of said systems is based on an electrical motor, which overcomes the force of the energy accumulator via a gear motor and in others, it benefits from the movements of the safety gear's mobile components during blocking/wedging, in order to successfully bring the driving system to its balanced or "resting" position.
  • document EP2154096A1 shows how bringing closer a brake shoe in the form of a wedge pertaining to the safety gear, the driving direction is detected and the wedge itself subsequently exerts the brake force against the safety gear box.
  • the present specification describes a driving system for lifts safety gears, this system comprising:
  • the transmission element for transmitting the movement linked to the core of the solenoid and to the corresponding caliper is defined by a set of levers.
  • the set of transmission levers for transmitting the movement linked to the core of the solenoid and to the corresponding caliper is formed by a first shim generally in "L" shape and a second shim, the first shim being joined to the mobile structure rotationally by its vertex, as well as being joined to the corresponding caliper by one of its ends, its other end being joined to the second shim, attached to the core of the solenoid.
  • the electromagnetic device is defined by a solenoid and a magnetic limpet, the second shim joined to the core of the solenoid supporting a fixation plate for fixing to the magnetic limpet in this embodiment.
  • the transmission element for transmitting the movement linked to the core of the solenoid and corresponding caliper is freed, the energy accumulator acting on the corresponding caliper linked to it.
  • the energy accumulator when the energy accumulator operates on the corresponding caliper, it is displaced towards the first cabin or lift counterweight displacement guide, the roller contacting it and sliding along the path made in the caliper itself, towards one of its ends, caused by the relative movement of the driving means relative to the first cabin or lift counterweight displacement guide, until it is blocked between the caliper and the first guide, thereby increasing the normal force against the first guide, until the mobile structure is displaced along the second guide, with respect to the fixed structure and with it, to the transmission body for transmitting the movement to the safety gear mechanism.
  • the caliper may be displaced swinging around a rotational axle or linearly towards the first cabin or lift counterweight displacement guide.
  • the system may be applied to those lifts whose cabin is displaced along a first guide 1 in an ascending and descending direction, in such a way that the system is formed by a first fixed structure 2 joined to the second fixed structure 3 of the safety gear 4, this first structure 2 having a built in second displacement guide 5 for a mobile structure 6 which supports the driving means of the safety gear mechanism 4.
  • said second guide 5 may consist of a pair of parallel bars.
  • the first fixed structure 2 may be joined to the second fixed structure 3 of the safety gear or brake element in the facility, either via fixing it to the safety gear itself or via fixing it to the cabin or counterweight chassis, resulting in both elements, i.e. the "driving system” and "safety gear or brake element” being joined together.
  • the mobile structure 6 is mounted to the pair of bars in the second displacement guide 5 via elastic elements 21, which keep it balanced.
  • the driving means for the safety gear mechanism 4 are formed by an electromagnetic device, defined by a solenoid 7, although the same may have a built in magnetic limpet 8, with, at least, one caliper 9, in which a hollow has been made in the face opposite the first cabin or lift counterweight displacement guide 1, which defines a track 10 in the surface converging towards its ends, in such a way that a transmission element for transmitting movement is linked to the core of the solenoid 7 and the corresponding caliper 9, this caliper 9 being requested by an energy accumulator 11.
  • a roller 12 is located, keeping itself in a balanced position by means of, at least, one spring 13.
  • the surface of the track 10 may be generally curved in a concave way, as it can be seen in the designs or, it could have two inclined planes, whilst in a preferred embodiment, the roller 12 will be kept in a balanced position by means of a pair of springs 13.
  • the corresponding caliper 9 is rotationally joined to the transmission element for transmitting the movement linked to the core of the solenoid 7 and to the mobile structure 6, the driving body 15 of the safety gear mechanism 4 being fixed to this mobile structure 6, causing its activation in the corresponding direction (ascending or descending).
  • the transmission element for transmitting the movement linked to the solenoid core 7 and to the corresponding caliper 9 is defined by a set of levers.
  • Said set of levers may be formed by a first shim 16, generally in a "L" shape, which is joined to the mobile structure 6 at its vertex, as well as being joined to the corresponding caliper 9 by one of its ends and at the other end, being joined to a second shim 17, which in turn is joined to the solenoid core 7.
  • the caliper 9 is joined rotationally at one of its ends to said first shim 16 and at its other end, is joined rotationally to the mobile structure 6 by the axle 20.
  • a sheet 18 is linked to the second shim 17 and to the rod which supports the core of the solenoid, which will contact the magnetic limpet 8, in order to keep the driving means in a position in which the system is freed, thus permitting the cabin to be displaced along the first guide 1 in a normal way, so that, upon deactivating the electromagnetic device, the energy accumulator 11 will act on the corresponding caliper 9, thus making the system to be activated.
  • the axle joining the set of levers to the corresponding caliper 9 is fitted into a large opening 19 in the first shim 16, according to said set of levers.
  • the energy accumulator 11 which presses against the corresponding caliper 9 linked to it, causes the caliper to sway, the roller 12 contacting the first guide 1 and sliding along the track 10, until it reaches one of its ends, causing the relative movement of the driving means relative to the first guide 1, in order to eventually be blocked and wedged, thus increasing the normal force produced against the first guide 1, until the mobile structure 6 is displaced and thereby, the transmission body 15 for transmitting the movement to the safety gear mechanism 4.
  • the driving system is subsequently restarted and ready to be used, once the lift cabin moves in the opposite direction to the wedging and once again activates the system's electronic feeder source, which is when the core of the solenoid 7 is withdrawn, pulling the second shim 17 and causing the first shim 16 and the caliper 9 linked to it to rotate slightly, therefore causing the energy accumulator 11 to retreat.
  • the electronic device When the electronic device is made up of just the solenoid 7, it will be that to support the pressure exerted by the energy accumulator 11.
  • the electromagnetic device consists of a solenoid 7 and a magnetic limpet 8
  • a sheet 18 is linked to the second shim 17, which will be fixed to the magnetic limpet 8, thus supporting the pressure exerted by the energy accumulator, operating in exactly the same way as described.
  • Figure 3 representing the first guide 1 along which the lift cabin is displaced and how the driving means of the safety gear mechanism are mounted to a mobile structure 6, guided by a second guide 5 in relation to the first fixed structure 2, joined to the second fixed structure 3 in the safety gear 4.
  • a sheet 18 is linked to the second shim 17 and to the solenoid core 7, with the electromagnetic device being activated that remains fixed to the magnetic limpet 8, the driving system remaining free, allowing the cabin or lift counterweight to displace along the first guide 1 in a normal way.
  • Said set of levers is formed by a first shim, generally in a "L" shape, joined rotationally by its vertex to the mobile structure 6, such that one of its ends is joined to the caliper 9 and its other end is joined to the second shim 17, which in turn, is joined to the solenoid core 7.
  • the caliper 9 has a hollow which defines a track 10 which is generally curved/concave in shape, which is closed at its ends, this hollow having a roller 12 which maintains the balance between one pair of springs 13.
  • Figure 5 represents the continuous movement which is produced, it being possible to observe how, as a result of the pressure exerted by the energy accumulator 11 on the caliper 9, the rollers 12 press against the first guide 1 and have been displaced along the track 10, created in the caliper itself 9, up to one end.
  • the displacement direction of the rollers 12 relative to the track 10 depends on the displacement direction of the lift cabin (in this descending embodiment).
  • Figure 6 of the designs represents the continuous movement produced, it being possible to observe how, as a result of the pressure the energy accumulator 11 continues exerting on the caliper, the rollers 12 are blocked and wedged against the first guide 1, thereby increasing the normal force against the first guide 1, until it causes to the mobile structure 6 to displace along the second guide 5, relative to the first fixed structure 2, this displacement causing the transmitter body 15 for transmitting movement to the safety gear mechanism 4 to be displaced, causing the same to activate.
  • Figure 7 provides an equivalent representation to that shown in Figure 5 of the driving means of a safety gear mechanism, this time according to the lift cabin being displaced in the opposite direction to that previously indicated (ascending), said representation thereby being consecutive to that shown in Figure 4 of the designs, in such a way that it is possible to observe how, after having deactivated the electromagnetic device, the rollers 12 press against the first guide 1 as a result of the pressure exerted by the energy accumulator 11 on the caliper 9 and have been displaced along the track 10 created in the caliper itself 9, until they reach an end.
  • the direction in which the rollers 12 are displaced in relation to the track 10 depends on the direction in which the lift cabin is displaced (in this case, in an ascending direction).
  • Figure 10 of the designs represents the electromagnetic device, formed by just the solenoid 7, the same serving to support the pressure exerted by the energy accumulator 11.
  • Figures 11 and 12 of the designs represent an alternative practical embodiment in which the calipers 9 are displaced lineally, in such a way that the set of levers 16 and 17 is linked to a connecting rod 24, which acts on the corresponding caliper 9, thus causing its linear displacement.
  • the connecting rod body 24 is joined at one end to the first lever 16 in the set of levers and at its other end, is linked rotationally to the mobile structure , in such a way that upon the energy accumulator being activated 11, it transmits a linear displacement to the caliper 9 towards the first guide 1.
  • Figure 1 shows how the mobile structure 6 may remain balanced by having built in elastic elements 21' in the safety gear itself.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP13382330.2A 2013-08-13 2013-08-13 Système d'entraînement destiné à un engrenage de sécurité d'ascenseur Withdrawn EP2837592A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13382330.2A EP2837592A1 (fr) 2013-08-13 2013-08-13 Système d'entraînement destiné à un engrenage de sécurité d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13382330.2A EP2837592A1 (fr) 2013-08-13 2013-08-13 Système d'entraînement destiné à un engrenage de sécurité d'ascenseur

Publications (1)

Publication Number Publication Date
EP2837592A1 true EP2837592A1 (fr) 2015-02-18

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EP13382330.2A Withdrawn EP2837592A1 (fr) 2013-08-13 2013-08-13 Système d'entraînement destiné à un engrenage de sécurité d'ascenseur

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017103555U1 (de) 2017-06-14 2017-07-20 Wittur Holding Gmbh Hilfsantrieb für eine Bremsfangvorrichtung
US10569993B2 (en) 2017-03-29 2020-02-25 Otis Elevator Company Safety brake actuation mechanism for a hoisted structure
CN111071894A (zh) * 2020-01-14 2020-04-28 石家庄通安机械有限公司 一种制动装置
JP2020083579A (ja) * 2018-11-28 2020-06-04 株式会社日立製作所 非常止め装置及びエレベーター
US10822200B2 (en) 2018-10-12 2020-11-03 Otis Elevator Company Elevator safety actuator systems
WO2021069739A1 (fr) * 2019-10-10 2021-04-15 Wittur Holding Gmbh Unité de déclenchement destinée à actionner un dipsositif de freinage d'ascenseur
US11053097B2 (en) 2018-07-26 2021-07-06 Otis Elevator Company Magnet assembly for an electronic safety brake actuator (ESBA)
WO2022017510A1 (fr) * 2020-07-24 2022-01-27 刘英辉 Dispositif de levage d'engrenage de sécurité, cabine d'ascenseur et son procédé d'utilisation
EP4053062A1 (fr) * 2021-02-25 2022-09-07 Orona, S. Coop. Dispositif de parachute pour dispositifs d'élévation, dispositifs d'élévation et procédure d'activation d'un tel dispositif
WO2023134980A1 (fr) * 2022-01-13 2023-07-20 Wittur Holding Gmbh Unité de libération pour actionner un dispositif de frein d'ascenseur
US20230286779A1 (en) * 2022-02-23 2023-09-14 Elgo Batscale Ag Safety Gear for an Elevator System
US12234125B2 (en) * 2020-02-14 2025-02-25 Wittur Holding Gmbh Triggering unit for actuating an elevator braking device
US20250145413A1 (en) * 2022-02-04 2025-05-08 Cobianchi Liftteile Ag Brake catching device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006077243A1 (fr) 2005-01-21 2006-07-27 Wittur Ag Dispositif de freinage ou d'arret d'une cabine d'ascenseur
EP1806310A1 (fr) * 2004-10-27 2007-07-11 Mitsubishi Denki Kabushiki Kaisha Dispositif d'arret d'urgence pour ascenseur
WO2008000571A1 (fr) 2006-06-29 2008-01-03 Evonik Degussa Gmbh Procédé de production d'un revêtement antitache détachable
ES2331265T3 (es) 2006-09-19 2009-12-28 Wittur Holding Gmbh Mecanismo de reposicionamiento automatico para un dispositivo de frenado de tipo ucf.
EP2154096A1 (fr) 2007-06-04 2010-02-17 Mitsubishi Electric Corporation Dispositif de sécurité d'élévateur
ES2341359T3 (es) 2005-06-17 2010-06-18 Inventio Ag Dispositivo de paracaidas de frenado.
US20110088983A1 (en) * 2006-11-08 2011-04-21 Gerard Sirigu Elevator braking device
WO2012080104A1 (fr) 2010-12-17 2012-06-21 Inventio Ag Actionnement d'un parachute
WO2012128758A1 (fr) * 2011-03-22 2012-09-27 Otis Elevator Company Système de freinage d'ascenseur
WO2013045358A1 (fr) 2011-09-30 2013-04-04 Inventio Ag Système de freinage à actionnement électromécanique
WO2013045359A1 (fr) 2011-09-30 2013-04-04 Inventio Ag Système de freinage à actionnement électromécanique
WO2013070234A1 (fr) * 2011-11-11 2013-05-16 Otis Elevator Company Dispositif de freinage d'ascenseur présentant une caractéristique de réinitialisation automatique

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1806310A1 (fr) * 2004-10-27 2007-07-11 Mitsubishi Denki Kabushiki Kaisha Dispositif d'arret d'urgence pour ascenseur
WO2006077243A1 (fr) 2005-01-21 2006-07-27 Wittur Ag Dispositif de freinage ou d'arret d'une cabine d'ascenseur
ES2341359T3 (es) 2005-06-17 2010-06-18 Inventio Ag Dispositivo de paracaidas de frenado.
WO2008000571A1 (fr) 2006-06-29 2008-01-03 Evonik Degussa Gmbh Procédé de production d'un revêtement antitache détachable
ES2331265T3 (es) 2006-09-19 2009-12-28 Wittur Holding Gmbh Mecanismo de reposicionamiento automatico para un dispositivo de frenado de tipo ucf.
US20110088983A1 (en) * 2006-11-08 2011-04-21 Gerard Sirigu Elevator braking device
EP2154096A1 (fr) 2007-06-04 2010-02-17 Mitsubishi Electric Corporation Dispositif de sécurité d'élévateur
WO2012080104A1 (fr) 2010-12-17 2012-06-21 Inventio Ag Actionnement d'un parachute
WO2012128758A1 (fr) * 2011-03-22 2012-09-27 Otis Elevator Company Système de freinage d'ascenseur
WO2013045358A1 (fr) 2011-09-30 2013-04-04 Inventio Ag Système de freinage à actionnement électromécanique
WO2013045359A1 (fr) 2011-09-30 2013-04-04 Inventio Ag Système de freinage à actionnement électromécanique
WO2013070234A1 (fr) * 2011-11-11 2013-05-16 Otis Elevator Company Dispositif de freinage d'ascenseur présentant une caractéristique de réinitialisation automatique

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10569993B2 (en) 2017-03-29 2020-02-25 Otis Elevator Company Safety brake actuation mechanism for a hoisted structure
WO2018229183A1 (fr) 2017-06-14 2018-12-20 Wittur Holding Gmbh Entraînement auxiliaire pour dispositif de freinage
RU2759771C2 (ru) * 2017-06-14 2021-11-17 Виттур Холдинг ГМБХ Вспомогательный привод для тормозного улавливающего устройства
DE202017103555U1 (de) 2017-06-14 2017-07-20 Wittur Holding Gmbh Hilfsantrieb für eine Bremsfangvorrichtung
US11053097B2 (en) 2018-07-26 2021-07-06 Otis Elevator Company Magnet assembly for an electronic safety brake actuator (ESBA)
US10822200B2 (en) 2018-10-12 2020-11-03 Otis Elevator Company Elevator safety actuator systems
JP2020083579A (ja) * 2018-11-28 2020-06-04 株式会社日立製作所 非常止め装置及びエレベーター
JP7204448B2 (ja) 2018-11-28 2023-01-16 株式会社日立製作所 非常止め装置及びエレベーター
WO2021069739A1 (fr) * 2019-10-10 2021-04-15 Wittur Holding Gmbh Unité de déclenchement destinée à actionner un dipsositif de freinage d'ascenseur
US12365566B2 (en) 2019-10-10 2025-07-22 Wittur Holding Gmbh Release unit for actuating an elevator brake device
CN111071894A (zh) * 2020-01-14 2020-04-28 石家庄通安机械有限公司 一种制动装置
US12234125B2 (en) * 2020-02-14 2025-02-25 Wittur Holding Gmbh Triggering unit for actuating an elevator braking device
WO2022017510A1 (fr) * 2020-07-24 2022-01-27 刘英辉 Dispositif de levage d'engrenage de sécurité, cabine d'ascenseur et son procédé d'utilisation
EP4053062A1 (fr) * 2021-02-25 2022-09-07 Orona, S. Coop. Dispositif de parachute pour dispositifs d'élévation, dispositifs d'élévation et procédure d'activation d'un tel dispositif
ES2922124A1 (es) * 2021-02-25 2022-09-08 Orona S Coop Dispositivo paracaídas para aparatos elevadores, aparato elevador y procedimiento para activar dicho dispositivo
WO2023134980A1 (fr) * 2022-01-13 2023-07-20 Wittur Holding Gmbh Unité de libération pour actionner un dispositif de frein d'ascenseur
US20250145413A1 (en) * 2022-02-04 2025-05-08 Cobianchi Liftteile Ag Brake catching device
US20230286779A1 (en) * 2022-02-23 2023-09-14 Elgo Batscale Ag Safety Gear for an Elevator System
US12338102B2 (en) * 2022-02-23 2025-06-24 Elgo Batscale Ag Safety gear for an elevator system

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