WO2019092116A1 - Déclencheur de parachute d'ascenseur - Google Patents

Déclencheur de parachute d'ascenseur Download PDF

Info

Publication number
WO2019092116A1
WO2019092116A1 PCT/EP2018/080633 EP2018080633W WO2019092116A1 WO 2019092116 A1 WO2019092116 A1 WO 2019092116A1 EP 2018080633 W EP2018080633 W EP 2018080633W WO 2019092116 A1 WO2019092116 A1 WO 2019092116A1
Authority
WO
WIPO (PCT)
Prior art keywords
safety gear
elevator
electromagnet
car
pull rod
Prior art date
Application number
PCT/EP2018/080633
Other languages
English (en)
Inventor
Pekka Hallikainen
Teemu Majasalmi
Original Assignee
Kone Corporation
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 Kone Corporation filed Critical Kone Corporation
Publication of WO2019092116A1 publication Critical patent/WO2019092116A1/fr

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
    • 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
    • B66B19/00—Mining-hoist operation
    • B66B19/007—Mining-hoist operation method for modernisation of elevators
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed

Definitions

  • An elevator may typically comprise a car, an elevator shaft, a machine room, lifting machinery, ropes, and a counterweight.
  • the elevator car may be positioned within a sling that supports the car.
  • the lifting machinery may be positioned in the machine room and may comprise a drive, an electric motor, a traction sheave, and a machinery brake.
  • the lifting machinery may move the car in a vertical direction upwards and downwards in the vertically extending elevator shaft.
  • the ropes may connect the sling and thereby also the car via the traction sheave to the counterweight.
  • the sling may further be supported with gliding means on guide rails extending along the height of the shaft.
  • the guide rails may be supported with fastening brackets on the side wall structures of the shaft.
  • Prior art elevator speed limiters are often based on mechanical pulley and rope systems, comprising a speed limiter pulley positioned e.g. in the upper part of the elevator shaft, a tensioning pulley positioned in the lower part of the elevator shaft and a speed limiter rope fitted to run in a substantially tight closed loop around these pulleys.
  • the safety gears may be connected via a linkage system to the speed limiter rope, which, when the elevator car is moving, runs around the speed limiter pulley and the tensioning pulley. If the elevator car and therefore the speed limiter rope move at an excessive speed, then the rotation of the speed limiter pulley in the upper part of the elevator shaft is stopped by a mechanism activated e.g.
  • an electromagnet a longitudinal pull rod having a first end and a second end, spring means arranged to move the pull rod away from the electromagnet when the electromagnet is deactivated,
  • connection piece is drawn into connection with the electromagnet when the electromagnet is activated and detached from the electromagnet when the electromagnet is deactivated
  • the second end of the pull rod is attached to a first end of an arm, a second end of the arm being operatively connected to at least one safety gear.
  • Figure 4 shows a further cross sectional view of the safety gear
  • Figure 5 shows a vertical cross sectional view of a safety gear trigger according to the invention.
  • Fig. 1 shows a vertical cross section in the side to side direction of an elevator.
  • the lifting machinery may comprise a drive 61 , an electric motor 62, a traction sheave 63, and a machinery brake 64.
  • the lifting machinery 60 may move the car 10 in a vertical direction Z upwards and downwards in the vertically extending elevator shaft 20.
  • the machinery brake 64 may stop the rotation of the traction sheave 63 and thereby the movement of the elevator car 10.
  • the sling 1 1 may be connected by the ropes 42 via the traction sheave 63 to the counterweight 41 .
  • the sling 1 1 may further be supported with gliding means 27 at guide rails 25 extending in the vertical direction in the shaft 20.
  • the gliding means 27 may comprise rolls rolling on the guide rails 25 or gliding shoes gliding on the guide rails 25 when the car 10 is moving upwards and downwards in the elevator shaft 20.
  • the guide rails 25 may be attached with fastening brackets 26 to the side wall structures 21 in the elevator shaft 20.
  • the gliding means 27 keep the car 10 in position in the horizontal plane when the car 10 moves upwards and downwards in the elevator shaft 20.
  • the counterweight 41 may be supported in a corresponding way on guide rails that are attached to the wall structure 21 of the shaft 20.
  • the car 10 may transport people and/or goods between the landings in the building.
  • the elevator shaft 20 may be formed so that the wall structure 21 is formed of solid walls or so that the wall structure 21 is formed of an open steel structure.
  • the figure shows a prior art speed limiter system based on a mechanical pulley and a rope system.
  • the system comprises a speed limiter pulley 52 mounted e.g. in the upper part of the elevator shaft 20, a tensioning pulley 53 mounted in the lower part of the elevator shaft 20 and a speed limiter rope 51 fitted to run in a substantially tight closed loop around these pulleys 52, 53.
  • a mechanical linkage system may connect to the speed limiter rope 51 and to the safety gears 70 positioned in connection with the car 10.
  • Each of the second linkage parts 82A, 82B is connected from the middle with an articulated joint J21 , J22 to the horizontal upper bar of the sling 1 1 .
  • the third linkage parts 83A, 83B are positioned on opposite sides of the car 10 below the car 10.
  • Each of the third linkage parts 83A, 83B is connected from the middle with an articulated joint J31 , J32 to the horizontal lower bar of the sling 1 1 .
  • each of the second linkage parts 82A, 82B is connected with a pull rod 84A, 85A to an inner end of the respective third linkage part 83A, 83B.
  • An outer end of each of the third linkage parts 83A, 83B is connected with a pull rod 84B, 85B to an outer end of the respective first linkage part 81A, 81 B.
  • the first linkage parts 81 A, 81 B are connected with crosswise running pull bars 86A, 86B to each other. Outer ends of the first linkage parts 81 A, 81 B are further connected with pull bars 87A, 87B to a respective outer end of the second linkage par 82A, 82B.
  • the speed governor 52 will be activated preventing overspeeding of the speed limiter rope 51 , which therefore moves slower than the car 10, thereby tripping the linkage system 80 and activating the safety gears 70.
  • Tripping of the linkage system 80 means that the outer end of the first linkage part 81 A on the left hand side in the figure is turned upwards around the articulated joint J 1 1 .
  • the crosswise running pull bars 86A, 86B thus turn the outer end of the first linkage part 81 B on the right hand side in the figure also upwards around the articulated joint J12.
  • the outer vertical pull rods 84B, 85B will be pulled upwards, whereby both safety gears 70 are activated.
  • Figure 3 shows a first cross sectional view of a safety gear and figure 4 shows a further cross sectional view of the safety gear.
  • the roller 73 in the safety gear 70 may be connected to the respective vertical support rods 84A, 84B; 85A, 85B so that when either of the vertical support rods 84A, 84B; 85A, 85B move upwards, then also the roller 73 moves upwards along the support surface 72, whereby the safety gear 70 starts to brake.
  • the safety gear trigger 100 may comprise a casing 1 10, an electromagnet 120, a connection piece 130, a longitudinal pull rod 140, an actuator 150, and an arm 160.
  • the pull rod 140 may be formed of a threaded rod with a circular cross section, whereby also the second articulated joint J2 may be threaded.
  • the actuator 150 may be formed of spring means 150.
  • the spring means 150 may be formed as one or several consecutive coil springs surrounding the pull rod 140 and extending between the arm 160 and the casing 1 10. The compression of the spring 150 and the distance between the arm 160 and the upper end of the casing 1 10 may be adjusted by adjusting the position of the joint J2 on the threaded pull rod 140.
  • the spring 150 or springs 150 may be supported by plastic bushings in order to hold the springs 150 in line.
  • the safety gear trigger 100 may be operated in two states.
  • the arm 160 may, in the first state, be turned into a position in which the linkage system 80 keeps the safety gears 70 open.
  • the arm 160 may be turned into a position in which the linkage system 80 activates the safety gears 70.
  • the first end 161 of the arm 160 may, in the first state, be in a lower position when the connection piece 130 is drawn into connection with the energised i.e. activated electromagnet 120. This means that the linkage system 80 of the safety gears 70 is in a position in which the safety gears 70 are open i.e. the lifting machinery 60 can move the elevator car 10 freely up and down in the shaft 20.
  • the safety gear trigger 100 according to the invention may on the other hand eliminate the need of a traditional prior art speed limiter system.
  • the safety gear trigger 100 according to the invention could be used in connection with any prior art speed limiter system so that the pulleys 52, 53 and the rope 51 are left out and the safety gear trigger 100 is connected to the linkage system 80 of the prior art speed limiter system, may thus be left out when the safety trigger 100 is used.
  • the safety trigger 100 according to the invention could further be connected directly to the safety gears 70 eliminating also the need of the linkage system 80 in prior art speed limiter systems.
  • overspeed detection system 200 may be used in connection with the safety gear trigger 100.
  • the overspeed detection system 200 may be based on electronical devices e.g. it may be based on one or more acceleration sensors or it may be based on encoder data.
  • the encoder may be used to measure the rotation speed of the electric motor 62 driving the traction sheave 63.
  • the overspeed detection system may on the other hand be based on mechanical devices e.g. a roller acting on the car guide rail 25.
  • a mechanical detent may furthermore be provided in the upper portion and in the lower portion of the shaft 20 in order to define a refuge space in the upper portion and in the lower portion of the shaft 20.
  • the mechanical detent may be activated when the car 10 passes the detent. Activation of the mechanical detent may open the contact K1 , whereby the electric power to the electromagnet 120 is interrupted and the safety gear 70 is activated.
  • the safety gear trigger 100 can be used in connection with any kind of safety gear.
  • the safety gear may be provided only in connection with one guide rail 25 or in connection with both guide rails or there may be more than one safety gear on each guide rail 25.
  • the use of the safety gear trigger 100 is thus not limited to the safety gear 70 shown in figures.
  • the safety gear trigger 100 can naturally also be used in connection with the counterweight 41 if a safety gear 70 is used in connection with the counterweight 41 .
  • the second end 162 of the arm 160 of the safety gear 100 is operatively connected to at least one safety gear 70.
  • the operative connection is in the figures realized via the linkage system 80 acting on both safety gears 70.
  • the operative connection can be realized in any suitable way e.g. with levers or chains or other force transmitting equipment so that turning of the second end 162 of the arm 160 causes the safety gear 70 to connect the brake and start braking or to disconnect the brake.
  • the safety gear trigger 100 is, in the figures, shown in a more or less vertical position i.e. the pull rod 140 extends upwards from the casing 1 10.
  • the safety gear trigger 100 could instead be turned 180 degrees i.e. the pull rod 140 would extend downwards from the casing 1 10.
  • the safety gear trigger 100 could also be positioned in a more or less horizontal position or in an inclined position in relation to the horizontal plane.
  • the invention can be used in connection with the elevator car and/or in connection with the counterweight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

La présente invention concerne un déclencheur de parachute d'ascenseur (100) comprenant un électroaimant (120), une tige de traction longitudinale (140) ayant une première extrémité (141) raccordée à une pièce de raccordement (130), qui est amenée en raccordement avec l'électroaimant (120) lorsque l'électroaimant est activé, et une seconde extrémité (142) fixée à une première extrémité (161) d'un bras (160), une seconde extrémité (162) du bras étant raccordée fonctionnellement à au moins un parachute (70). Des moyens formant ressort (150) sont conçus pour détacher la pièce de raccordement et ainsi également la tige de traction de l'électroaimant lorsque l'électroaimant est désactivé.
PCT/EP2018/080633 2017-11-09 2018-11-08 Déclencheur de parachute d'ascenseur WO2019092116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17200723.9A EP3483108B1 (fr) 2017-11-09 2017-11-09 Déclencheur d'engrenage de sécurité d'ascenseur
EP17200723.9 2017-11-09

Publications (1)

Publication Number Publication Date
WO2019092116A1 true WO2019092116A1 (fr) 2019-05-16

Family

ID=60293845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/080633 WO2019092116A1 (fr) 2017-11-09 2018-11-08 Déclencheur de parachute d'ascenseur

Country Status (2)

Country Link
EP (1) EP3483108B1 (fr)
WO (1) WO2019092116A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302181A (zh) * 2020-04-10 2020-06-19 通用电梯股份有限公司 一种对重安全钳装置
CN114014125A (zh) * 2021-10-22 2022-02-08 苏州东方富力电梯部件有限公司 一种电梯安全钳一体式提拉机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022013939A1 (fr) * 2020-07-14 2022-01-20 株式会社日立製作所 Dispositif d'ascenseur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111908A2 (fr) 1982-12-17 1984-06-27 Licentia Patent-Verwaltungs-GmbH Propulseur pour bateau entraîné par l'électricité et son utilisation
EP1780160A1 (fr) * 2004-04-30 2007-05-02 Mitsubishi Denki Kabushiki Kaisha Système de freinage en cas de problèmes d"ascenseur
WO2010107407A1 (fr) * 2009-03-16 2010-09-23 Otis Elevator Company Système de protection contre la sur-accélération et la survitesse d'un ascenseur
DE102013111385A1 (de) 2013-10-15 2015-04-16 Manfred Lienemann Auslösevorrichtung einer Fangvorrichtung für eine Aufzugskabine einer Aufzugsanlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50309764D1 (de) * 2002-04-02 2008-06-19 Inventio Ag Einrichtung zum Einrücken einer Fangvorrichtung für eine Aufzugskabine
EP1400476B1 (fr) * 2002-09-23 2009-10-21 Inventio Ag Parachute pour ascenseurs
DE60335421D1 (de) * 2003-10-07 2011-01-27 Otis Elevator Co Fernrückstellbare seillose not-stopp-vorrichtung für einen aufzug
EP3106417B1 (fr) * 2015-06-16 2018-08-08 KONE Corporation Dispositif et procede de commande
DE202017103555U1 (de) * 2017-06-14 2017-07-20 Wittur Holding Gmbh Hilfsantrieb für eine Bremsfangvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111908A2 (fr) 1982-12-17 1984-06-27 Licentia Patent-Verwaltungs-GmbH Propulseur pour bateau entraîné par l'électricité et son utilisation
EP1780160A1 (fr) * 2004-04-30 2007-05-02 Mitsubishi Denki Kabushiki Kaisha Système de freinage en cas de problèmes d"ascenseur
WO2010107407A1 (fr) * 2009-03-16 2010-09-23 Otis Elevator Company Système de protection contre la sur-accélération et la survitesse d'un ascenseur
DE102013111385A1 (de) 2013-10-15 2015-04-16 Manfred Lienemann Auslösevorrichtung einer Fangvorrichtung für eine Aufzugskabine einer Aufzugsanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302181A (zh) * 2020-04-10 2020-06-19 通用电梯股份有限公司 一种对重安全钳装置
CN114014125A (zh) * 2021-10-22 2022-02-08 苏州东方富力电梯部件有限公司 一种电梯安全钳一体式提拉机构

Also Published As

Publication number Publication date
EP3483108B1 (fr) 2020-02-19
EP3483108A1 (fr) 2019-05-15

Similar Documents

Publication Publication Date Title
US11459208B2 (en) Elevator safety gear trigger and reset system
US9505587B2 (en) Elevator with acceleration detection
US8550217B2 (en) Elevator
JP6633208B2 (ja) エレベーター装置
KR101617572B1 (ko) 엘리베이터 장치
US11230457B2 (en) Elevator apparatus
EP3483108B1 (fr) Déclencheur d'engrenage de sécurité d'ascenseur
US11897728B2 (en) Elevator having free fall protection system
US20140048357A1 (en) Elevator
US6318506B1 (en) Single rope elevator governor
US2493553A (en) Safety apparatus for elevators
JP2008081218A (ja) エレベータ用巻上装置
EP3502034A1 (fr) Arrangement de contrepoids d'ascenseur
CN113498399B (zh) 用于安全钳的触发系统、电梯设备和运行电梯设备的方法
US1653909A (en) Safety
WO2023233462A1 (fr) Dispositif de sécurité pour ascenseur
KR100429303B1 (ko) 엘리베이터의 안전장치
JP3146458U (ja) エレベータ用巻上装置
KR200219245Y1 (ko) 엘리베이터의 안전장치
JP2024070403A (ja) エレベータかご及びエレベータ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18800143

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18800143

Country of ref document: EP

Kind code of ref document: A1