EP1422182A1 - Sicherheitsvorrichtung für einen Aufzug mit reduzierter Schachtgrube - Google Patents

Sicherheitsvorrichtung für einen Aufzug mit reduzierter Schachtgrube Download PDF

Info

Publication number
EP1422182A1
EP1422182A1 EP03078566A EP03078566A EP1422182A1 EP 1422182 A1 EP1422182 A1 EP 1422182A1 EP 03078566 A EP03078566 A EP 03078566A EP 03078566 A EP03078566 A EP 03078566A EP 1422182 A1 EP1422182 A1 EP 1422182A1
Authority
EP
European Patent Office
Prior art keywords
elevator
pit
safety
actuator
parachute
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Withdrawn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
EP03078566A
Other languages
English (en)
French (fr)
Inventor
Oronzo Centoducati
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.)
Centoducati SpA
Original Assignee
Centoducati SpA
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 Centoducati SpA filed Critical Centoducati SpA
Publication of EP1422182A1 publication Critical patent/EP1422182A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • 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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B66B5/0056—Safety of maintenance personnel by preventing crushing
    • B66B5/0068—Safety of maintenance personnel by preventing crushing by activating the safety brakes when the elevator car exceeds a certain upper or lower position in the elevator shaft

Definitions

  • rafters An example of mechanical manual device is shown by rafters: in such case the operation is manual only, possible from the floor threshold by a metallic rope. More evolved ones have a control by electric contact.
  • the pit or head accesses are controlled and connected to a safety circuit: opening one of the floor doors with the proper key a memory circuit is activated, deactivating the safety one and preventing the elevator from moving in any direction. Only the inspection operation is allowed.
  • the memory circuit can and must be reset only from the machine room by a proper key, allowing the elevator to restore operation.
  • the system provides for two devices for each elevator car or counterweight, and two shock absorber embodiments, according to the elevator speed.
  • the device provided with the present invention is based instead on the use of a parachute, normally installed on the elevator with the purpose of stopping it if it would gain a speed greater than the nominal one (rope elevator) or if it would break one of the ropes (hydraulic elevator), as a safety system also for the reduced pits and/or heads access for ordinary or extraordinary maintenance operations.
  • Figure 1 shows the device actuator 4, fixedly secured to the guide 1 by the rotation pin 8, in retracted position.
  • FIG. 2 shows the device actuator 4, fixedly secured to the guide 1 by the rotation pin 8, in the released position.
  • Figure 4 shows the device actuator 4, in the released position, with the switch 20 in off position 20b and the electromagnet 21 contact 21a in on position.
  • the elevator is able to move in inspection mode only and only up to a predetermined height from the pit, allowing the presence of somebody into the pit.
  • Figure 5 shows the device actuator 4, in the retracted position, with the switch 20 in off position 20b and the electromagnet 21 contact 21 a in on position again.
  • Figure 6 shows the device actuator 4, in the retracted position, with the switch 20 in off position 20b and the electromagnet 21 contact 21 a in off position.
  • Such condition occurs when the device actuator 4 is retracted by an electromechanical device, energized, as the electromagnet 21, by the remote resetting.
  • Such condition also occurs when the device actuator 4 is manually retracted and the remote resetting has been actuated too. In such condition the elevator can move normally.
  • Figure 7 shows an example of a manually operating complete device integrated with the elevator system.
  • the device actuator 4 fixedly secured to the guide 1 through the rotation pin 8, is in the retracted position, as it is constrained in position 16 by the wire 11, integral with lever 18.
  • the spring 9, guided by the pin 10, is compressed.
  • the red pilot light 14 on panel 12 is switched on, to show a dangerous condition (pit access forbidden).
  • the needle 5 of the parachute safety device 6 mounted under the elevator arcade 13 is in neutral position, not being stressed the rod 3, connected by the lever 2 to the rod 7 of the needle 5.
  • the elevator 13 can move across the shaft.
  • Figure 8 shows an example of a manually operating complete device integrated with the elevator system.
  • the device actuator 4 fixedly secured to the guide 1 through the rotation pin 8, is in the released position, as the spring 9, guided by the pin 10, is not compressed, being the wire 11, integral with lever 18, constrained in the neutral position 17.
  • the red pilot light 14 on panel 12 is switched off, while the green pilot light 15 is switched on, to show a safety condition (pit access allowed).
  • the needle 5 of the parachute safety device 6 mounted under the elevator arcade 13 remains in the neutral position, until the elevator 13, in inspection motion, doesn't reach the safety distance H min , when the actuator 4 interacts with the rod 3 causing, through the lever 2, the upward movement of the rod 7 of the needle 5, which blocks immediately the elevator 13 acting on the guide 1.
  • Figure 9 shows an example of an electromechanically operating complete device integrated with the elevator system.
  • the device actuator 4 fixedly secured to the guide 1 through the rotation pin 8, is in the retracted position, as the electromagnet 23 is energized, being voltage on the circuit 19, and compresses the spring 9, guided by the pin 10.
  • the needle 5 of the parachute safety device 6 mounted under the elevator arcade 13 is in the neutral position, not being stressed the rod 3, connected by the lever 2 to the rod 7 of the needle 5.
  • the elevator 13 can move across the shaft.
  • Figure 10 shows an example of an electromechanically operating complete device integrated with the elevator system.
  • the device actuator 4 fixedly secured to the guide 1 through the rotation pin 8, is in the released position, as the electromagnet 23 is not energized, not being voltage on the circuit 19, so the spring 9, guided by the pin 10, is free to reach its neutral position.
  • the needle 5 of the parachute safety device 6 mounted under the elevator arcade 13 remains in the neutral position, until the elevator 13, in inspection motion, doesn't reach the safety distance H min , when the actuator 4 interacts with the rod 3 causing, through the lever 2, the upward movement of the rod 7 of the needle 5, which blocks immediately the elevator 13 acting on the guide 1.
  • electromechanical control see as example Fig. 9 and 10
  • the device doesn't interact with the parachute during the elevator motion.
  • the actuator puts itself in position 13.
  • the device essentially comprises a mechanical actuator, rotating between two defined positions referred to “retracted” (see Fig. 1) and “released” (see Fig. 2), which respectively means that "not interact” and “interact” with the parachute.
  • the actuator In the released position, the actuator is able to activate the parachute if the elevator car should reach a predetermined safety height.
  • the actuator movement can occur by manual (mechanical) or automatic (electromechanical) control.
  • Manual control (see as example Fig. 7 and 8) consists in an operation which the authorized person voluntarily performs in a safety place before entering into the pit, by acting on a lever which transmits the motion to the actuator, moving it to its released position and thus able to interact with the parachute. On leaving from the pit, the lever must be moved again to put the actuator in its retracted position and thus not able to interact with the parachute.
  • the released position in absence of external controls, is warranted by a spring, while the retracted position, by voluntary external control, provides that the spring is being compressed.
  • the actuator is always in released position and thus able to potentially activate the parachute.
  • the access to the pit provides for the manual opening with an emergency key of the lower floor door only, which operation activates a safety mechanism controllable and testable by an acoustic and/or visual device.
  • the mechanism is manually controlled, the mechanism itself needs to be activated; if it is automatically controlled, the mechanism is independently activated by opening the floor door.
  • the second step if the first one is verified, provides for the proper access and the stay in the pit, where is possible to operate in safety conditions, and also to move the elevator upward or downward maintaining a safety and easily adjustable height, according to the reference rule.
  • the safety test for accessing to the pit takes place in two different ways, according to whether the opening control, while the floor door is opened with the proper key, is provided.
  • an audio-visual signal indicates a dangerous condition when the floor door is opened. Therefore the device needs to be activated manually or electrically, obtaining the operating condition change of state, from dangerous to safe, indicated by a proper permission pilot light and/or acoustic signalling.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP03078566A 2002-11-19 2003-11-17 Sicherheitsvorrichtung für einen Aufzug mit reduzierter Schachtgrube Withdrawn EP1422182A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20022457 2002-11-19
ITMI20022457 ITMI20022457A1 (it) 2002-11-19 2002-11-19 Apparecchiatura meccanica di sicurezza per fosse ridotte di ascensori

Publications (1)

Publication Number Publication Date
EP1422182A1 true EP1422182A1 (de) 2004-05-26

Family

ID=32211402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03078566A Withdrawn EP1422182A1 (de) 2002-11-19 2003-11-17 Sicherheitsvorrichtung für einen Aufzug mit reduzierter Schachtgrube

Country Status (2)

Country Link
EP (1) EP1422182A1 (de)
IT (1) ITMI20022457A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062503A1 (en) 2004-12-03 2006-06-15 Otis Elevator Company Safety device for use in an elevator system
WO2008004021A1 (en) * 2006-06-30 2008-01-10 Otis Elevator Company Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
WO2008004022A1 (en) 2006-06-30 2008-01-10 Otis Elevator Company Elevator having a shallow pit and/or a low overhead
EP2039642A1 (de) * 2007-09-19 2009-03-25 Mac Puar, S.A. Auslösevorrichtung für die Endpositionen eines Aufzugs und Betriebsverfahren dieser Auslösevorrichtung
WO2010000912A1 (en) * 2008-06-30 2010-01-07 Kone Corporation Elevator arrangement and method in elevator maintenance
WO2010040888A1 (en) * 2008-10-06 2010-04-15 Kone Corporation Elevator arrangement
WO2011058229A1 (en) * 2009-11-13 2011-05-19 Kone Corporation Elevator and method
WO2014040861A1 (de) * 2012-09-14 2014-03-20 Inventio Ag Betätigungselement für eine fangvorrichtung
CN105668367A (zh) * 2016-04-06 2016-06-15 巨立电梯股份有限公司 一种电梯井道外操作的检修支撑装置
WO2016118496A1 (en) * 2015-01-21 2016-07-28 Otis Elevator Company Assembly for actuating an elevator car brake
EP2941399A4 (de) * 2013-01-07 2016-10-19 Kone Corp Aufzug und mittel zur herstellung eines sicherheitsraums
EA038737B1 (ru) * 2019-02-25 2021-10-12 Открытое Акционерное Общество "Могилевский Завод Лифтового Машиностроения" (Оао "Могилевлифтмаш") Упор автоматический для подъемных механизмов
WO2023066459A1 (en) * 2021-10-19 2023-04-27 Kone Corporation A solution for resetting a safety mode of an elevator system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662445A2 (de) * 1994-01-05 1995-07-12 Kone Oy Vorrichtung in einem Aufzugsübergeschwindigkeitsbegrenzer
US6138798A (en) * 1995-12-22 2000-10-31 Macuga; Henry J. Elevator safety system incorporating false pit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662445A2 (de) * 1994-01-05 1995-07-12 Kone Oy Vorrichtung in einem Aufzugsübergeschwindigkeitsbegrenzer
US6138798A (en) * 1995-12-22 2000-10-31 Macuga; Henry J. Elevator safety system incorporating false pit

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1817251A4 (de) * 2004-12-03 2012-01-18 Otis Elevator Co Sicherheitsvorrichtung zur verwendung in einem aufzugssystem
EP1817251A1 (de) * 2004-12-03 2007-08-15 Otis Elevator Company Sicherheitsvorrichtung zur verwendung in einem aufzugssystem
WO2006062503A1 (en) 2004-12-03 2006-06-15 Otis Elevator Company Safety device for use in an elevator system
WO2008004021A1 (en) * 2006-06-30 2008-01-10 Otis Elevator Company Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
WO2008004022A1 (en) 2006-06-30 2008-01-10 Otis Elevator Company Elevator having a shallow pit and/or a low overhead
CN101472830B (zh) * 2006-06-30 2013-07-17 奥蒂斯电梯公司 具有浅井坑和/或低顶盖的电梯
US8365870B2 (en) 2006-06-30 2013-02-05 Otis Elevator Company Foldable handrail and safety switch arrangement on top of an elevator car
CN101472825B (zh) * 2006-06-30 2012-11-14 奥蒂斯电梯公司 确保检查中的电梯井道顶部或底部最小空间的安全装置及具有这种安全装置的电梯
US8162108B2 (en) 2006-06-30 2012-04-24 Otis Elevator Company Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead
US8136637B2 (en) 2006-06-30 2012-03-20 Otis Elevator Company Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
EP2039642A1 (de) * 2007-09-19 2009-03-25 Mac Puar, S.A. Auslösevorrichtung für die Endpositionen eines Aufzugs und Betriebsverfahren dieser Auslösevorrichtung
US8708106B2 (en) 2008-06-30 2014-04-29 Kone Corporation Elevator arrangement and method in elevator maintenance
EP2297016A4 (de) * 2008-06-30 2014-07-02 Kone Corp Aufzugsanordnung und verfahren zur aufzugswartung
EP2297016A1 (de) * 2008-06-30 2011-03-23 Kone Corporation Aufzugsanordnung und verfahren zur aufzugswartung
CN102076593B (zh) * 2008-06-30 2014-09-10 通力股份公司 电梯装置以及电梯维护方法
WO2010000912A1 (en) * 2008-06-30 2010-01-07 Kone Corporation Elevator arrangement and method in elevator maintenance
CN102216188B (zh) * 2008-10-06 2014-04-09 通力股份公司 电梯装置
EP2344405A1 (de) * 2008-10-06 2011-07-20 Kone Corporation Aufzugsanordnung
EP2344405A4 (de) * 2008-10-06 2014-07-23 Kone Corp Aufzugsanordnung
WO2010040888A1 (en) * 2008-10-06 2010-04-15 Kone Corporation Elevator arrangement
EP2499078A4 (de) * 2009-11-13 2015-12-09 Kone Oyj Kone Corp Aufzug und verfahren dafür
CN102695664A (zh) * 2009-11-13 2012-09-26 通力股份公司 电梯和方法
WO2011058229A1 (en) * 2009-11-13 2011-05-19 Kone Corporation Elevator and method
CN102695664B (zh) * 2009-11-13 2016-04-27 通力股份公司 电梯和方法
CN104619625A (zh) * 2012-09-14 2015-05-13 因温特奥股份公司 用于防坠装置的操作元件
CN104619625B (zh) * 2012-09-14 2017-03-08 因温特奥股份公司 用于激活及停用电梯轿厢防坠装置的装置及其使用方法
WO2014040861A1 (de) * 2012-09-14 2014-03-20 Inventio Ag Betätigungselement für eine fangvorrichtung
AU2013314563B2 (en) * 2012-09-14 2016-11-17 Inventio Ag Actuating element for a catching device
US9586791B2 (en) 2012-09-14 2017-03-07 Inventio Ag Actuating element for elevator safety apparatus
US9878877B2 (en) 2013-01-07 2018-01-30 Kone Corporation Elevator and means for forming a safety space
EP2941399A4 (de) * 2013-01-07 2016-10-19 Kone Corp Aufzug und mittel zur herstellung eines sicherheitsraums
WO2016118496A1 (en) * 2015-01-21 2016-07-28 Otis Elevator Company Assembly for actuating an elevator car brake
US20170369277A1 (en) * 2015-01-21 2017-12-28 Otis Elevator Company Assembly for actuating an elevator car brake
US10766739B2 (en) 2015-01-21 2020-09-08 Otis Elevator Company Assembly for actuating an elevator car brake
CN105668367A (zh) * 2016-04-06 2016-06-15 巨立电梯股份有限公司 一种电梯井道外操作的检修支撑装置
CN105668367B (zh) * 2016-04-06 2018-03-27 巨立电梯股份有限公司 一种电梯井道外操作的检修支撑装置
EA038737B1 (ru) * 2019-02-25 2021-10-12 Открытое Акционерное Общество "Могилевский Завод Лифтового Машиностроения" (Оао "Могилевлифтмаш") Упор автоматический для подъемных механизмов
WO2023066459A1 (en) * 2021-10-19 2023-04-27 Kone Corporation A solution for resetting a safety mode of an elevator system

Also Published As

Publication number Publication date
ITMI20022457A1 (it) 2004-05-20

Similar Documents

Publication Publication Date Title
JP4050342B2 (ja) 作業空間の人間を保護する装置
US7237655B2 (en) Elevator system and method for preventing unauthorized hoistway access
RU2478556C2 (ru) Схема возврата в исходное состояние предохранительной цепи лифта
EP1422182A1 (de) Sicherheitsvorrichtung für einen Aufzug mit reduzierter Schachtgrube
CN104968593B (zh) 电梯和用于形成安全空间的设备
EP1110900B1 (de) Schachtsicherheitssystem für Aufzug
EP2035313B1 (de) Sicherheitsvorrichtung zur sicherung von mindesträumen am oberen oder unteren ende eines gerade inspizierten aufzugschachts und aufzug mit solchen sicherheitsvorrichtungen
EP2033927B1 (de) Aufzug mit einem flachen Schacht und/oder einem geringen Kopfraum
RU2384512C2 (ru) Формирование безопасного пространства для временного пользования
EP1817251B1 (de) Sicherheitsvorrichtung zur verwendung in einem aufzugssystem
KR100319334B1 (ko) 승강기도어부정조작방지시스템
US10906777B2 (en) Safety system for a service space within an elevator shaft
KR20040029816A (ko) 엘리베이터 장치의 조속기
KR20190000313A (ko) 엘리베이터 린텔 도어 락 안전 디바이스들
US6186281B1 (en) Remote storage and reset of elevator overspeed switch
JP2019131334A (ja) エレベータの点検システム
KR102086246B1 (ko) 엘리베이터 클러치 장치
EP2039642A1 (de) Auslösevorrichtung für die Endpositionen eines Aufzugs und Betriebsverfahren dieser Auslösevorrichtung
JP7023827B2 (ja) 非常用エレベーター
JP2007254037A (ja) エレベータの運転制御装置
US20240051793A1 (en) Elevator pit maintenance systems
KR200299198Y1 (ko) 엘리베이터 장치의 조속기
KR19980068401A (ko) 엘리베이터의 추락방지 장치
JPH09175746A (ja) エレベーターの運転制御装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20041124

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20071123