EP3704049B1 - Dispositif de mise en uvre d'un travail d'entretien dans une cage d'ascenseur - Google Patents

Dispositif de mise en uvre d'un travail d'entretien dans une cage d'ascenseur Download PDF

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Publication number
EP3704049B1
EP3704049B1 EP18780126.1A EP18780126A EP3704049B1 EP 3704049 B1 EP3704049 B1 EP 3704049B1 EP 18780126 A EP18780126 A EP 18780126A EP 3704049 B1 EP3704049 B1 EP 3704049B1
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EP
European Patent Office
Prior art keywords
elevator
lifting device
shaft
counterweight
buffer
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.)
Active
Application number
EP18780126.1A
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German (de)
English (en)
Other versions
EP3704049A1 (fr
Inventor
Damien BAERISWYL
Ernst HUWILER
Flavio GREISSINGER
Marcel ULMI
Samuel RUCKSTUHL
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Inventio AG
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Inventio AG
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    • 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
    • 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
    • B66B5/28—Buffer-stops for cars, cages, or skips

Definitions

  • the invention relates to a device for performing maintenance work in an elevator shaft and to an elevator installation with such a device.
  • Elevator systems comprise a large number of components which are arranged in an elevator shaft and have a specific service life. These components are regularly serviced in accordance with existing generally applicable or internal company regulations. Accordingly, there is a need for service technicians to carry out maintenance tasks in an elevator shaft. A large number of these maintenance tasks have to be carried out from the roof of an elevator car. In order to ensure the safety of the service technicians on the roof of the elevator car, a minimum distance must be maintained between the elevator car and the upper shaft ceiling. In particular in the case of elevator cars which, in their arrangement on the uppermost shaft door of an elevator shaft, have a distance from the shaft ceiling that is too small for this purpose, additional structural measures are required.
  • EP 1 052 212 A1 shows an elevator installation with a buffer device.
  • the buffer device limits travel of the counterweight in the elevator shaft in such a way that the elevator car can only reach an uppermost position in the elevator shaft through which a service technician located on the elevator car is not endangered.
  • a lifting device specially provided for this elevator system must be provided for each elevator system.
  • an elevator system with an elevator shaft, a Elevator car and a counterweight, the elevator car and the counterweight being coupled and arranged in the elevator shaft so as to be movable in opposite directions, and a buffer device arranged in a shaft pit of the elevator shaft, which buffer device limits the travel of the counterweight and the buffer device comprises a buffer and a lifting device, wherein in a rest position of the lifting device enables the elevator car to pass through in a shaft head of the elevator shaft and the lifting device can be activated in such a way that, in an active position of the lifting device, the travel of the counterweight in the shaft pit is restricted and a minimum distance for maintenance is required between a shaft ceiling of the elevator shaft and the elevator car can be secured by personnel, characterized in that the lifting device is arranged between the buffer and counterweight.
  • the passage of the elevator car, which is made possible in the rest position of the lifting device, is limited by the buffer device acting on the counterweight due to the coupling of the elevator car to the counterweight.
  • Such a crossing is given when a floor of the elevator car is arranged higher than the level of the highest floor. Such a crossing is prevented in the active position of the lifting device.
  • the buffer device with the lifting device in the rest position enables unrestricted travel of the counterweight and also of the elevator car, which is restricted by the lifting device in the active position.
  • buffers are used to place the counterweight or the elevator car directly on the buffer. If necessary, the movement of the counterweight or the elevator car is dampened directly by the buffer. This damping is achieved in that the buffer is designed to be flexible in the vertical direction. In order to achieve this flexibility of the buffer, the buffer can essentially comprise an elastic component, for example a polyurethane block or a spring.
  • the invention is based on the knowledge that such an elevator system with a lifting device, in which the buffer directly limits the travel of the counterweight, i.e. the buffer is arranged between the lifting device and the counterweight, leads to different constructions of this lifting device when using lifting devices in different elevator systems. This is due to the use of different buffers, which are arranged below the counterweight of the respective elevator system. In order to minimize the structural effort for such lifting devices used in different elevator systems and thus to realize a single construction of the lifting device for a number of different elevator systems, contrary to the practice previously used, it was not placed the buffer directly under the counterweight or under the elevator car .
  • the elevator system has a bearing seat positioned on the buffer and a height-adjustable support. Fixed positioning of the bearing seat on the buffer is advantageous.
  • a further development of the elevator system comprises at least one guide rail for guiding the counterweight, the height-adjustable support having a guide device for guiding the support on the guide rail. Correct positioning of the height-adjustable support can be guaranteed in this way, regardless of the load on the buffer device.
  • the bearing seat and the support are connected by at least one support arm.
  • the bearing seat can be spaced from the support by means of such a support arm.
  • the lifting device has an activation element connected to the support arm, which activation element causes the lifting device to move from the rest position into the active position. In this way, manual movement of the lifting device into its active position can be simplified.
  • This activation element can be connected to the bearing seat or the support or a further activation element. Such a connection brings about a relative movement of the mutually movable components of the lifting device in order to move this lifting device into its active position.
  • This activation element can be formed by a spring.
  • One such feather is a simple and low-maintenance option to design such an activation element.
  • Fig. 1 shows an elevator system with a buffer device 20.
  • the elevator system comprises an elevator shaft 6.
  • an elevator car 2 is arranged so as to be movable.
  • the elevator car 2 is coupled to a counterweight 4 by means of a support element 10.
  • the support element 10 is fixed at its first end 12.1 on the shaft ceiling 7 of the elevator shaft 6.
  • a second end 12.2 of the support element 10 is also fixed to the shaft ceiling 7.
  • the support element 10 is deflected by means of rollers 14, 16 within the elevator shaft 6 in such a way that the elevator car 2 can be moved in opposite directions to the counterweight 4.
  • the roller 16 can be designed as a drive roller coupled to a drive motor.
  • the elevator shaft 6 has door openings 30 arranged on individual floors. A passenger located on one of the floors can get into the elevator car 2 through these door openings 30 if the elevator car 2 is arranged on this floor.
  • the elevator shaft 6 has a shaft pit 6.1 and a shaft head 6.2.
  • the elevator shaft 6 is delimited at its upper end or at the shaft head 6.2 by a shaft ceiling 7.
  • the buffer device 20 is arranged below the counterweight 4.
  • the buffer device 20 comprises a lifting device 24 and a buffer 22.
  • the lifting device 24 can be transferred from a rest position into an active position. In its rest position, the lifting device 24 is arranged in such a way that the elevator car 2 can be moved to the top floor during normal operation without the counterweight 4 touching down on the buffer device 20.
  • An uppermost possible position according to this definition of the rest position of the lifting device 24 Positioning of the elevator car 2 in normal operation is illustrated by means of a position 2 'in FIG.
  • Figure 2 shows the buffer device 20 in a shaft pit 6.1 of an elevator system shown by way of example in FIG.
  • the components of the elevator system shown are two guide rails 40 for guiding the counterweight 4.
  • the buffer device 20 is arranged at the lower end of the travel path of the counterweight. This means that the buffer device 20 limits the travel of the counterweight.
  • the guide rail 40 usually extends to the shaft floor. As a result, the buffer device 20 can be arranged between the guide rails 40.
  • the travel path of the counterweight can be limited by further components of the elevator system before the counterweight is stopped by the buffer device 20 or before the counterweight directly adjoins the buffer device 20.
  • a component limiting the travel path of the counterweight can be formed, for example, by a safety circuit which, when activated, stops the counterweight and therefore also the elevator car coupled to the counterweight in a position corresponding to this safety circuit.
  • the buffer device 20 comprises a lifting device 24 and at least one buffer 22 which is arranged on the shaft bottom.
  • the lifting device 24 is arranged above the buffer 22, that is to say between the counterweight and the buffer 22.
  • the lifting device 24 comprises a bearing seat 26 and a height-adjustable support 28, wherein the bearing seat 26 and the height-adjustable support 28 can be connected by means of at least one indicated support arm 30.
  • the bearing seat 26 and / or the height-adjustable support 28 can have opening grooves 53.1, 53.2, 56.1, 56.2. These opening grooves 53.1, 53.2, 56.1, 56.2 can be arranged in the height-adjustable support 28 or in the bearing seat 26 to guide the ends of the support arm 30 when the lifting device 24 is moved from its rest position to its active position (and vice versa).
  • Figure 3 shows the in Figure 2 illustrated buffer device 20, wherein the lifting device 24 is shown in its active position.
  • the lifting device 24 can have a second support arm 30.1, 30.2.
  • the support arms 30.1, 30.2 are arranged in such a way that the bearing seat 26 and the height-adjustable support 28 are spaced apart from one another at a maximum distance.
  • one or each of the support arms 30.1, 30.2 can have guide elements 55.1, 55.2, 57.1, 57.2 at its ends. These guide elements 55.1, 55.2, 57.1, 57.2 are intended to slide or roll, for example, during this movement of the lifting device 24 along the opening grooves 53.1, 53.2, 56.1, 56.2.
  • the lifting device 24 can have one or more activation elements 51, 52.1, 52.2, which are provided for easier movement of the lifting device 24 from its rest position into its active position.
  • one or more of these activation elements 51, 52.1, 52.2 can be designed as a spring. With its first end, such an activation element 51, 52.1, 52.2 can be connected in the area of the guide element 55.1, 55.2, 57.1, 57.2 to the first support arm 30.1, 30.2 assigned to this guide element 55.1, 55.2, 57.1, 57.2. With its second end, this activation element 51, 52.1, 52.2 can be fixed at a fastening point 54.1, 54.2, which fastening point 54.1, 54.2 is fixed or arranged on the height-adjustable support 28.
  • the embodiment variant shown can be fixed or arranged on the bearing seat 26, the fastening point.
  • the second end of the The activation element 51, 52.1, 52.2 can alternatively be connected to the second support arm 30.1, 30.2 in the area of the guide element 57.1, 57.2.
  • the activation element (s) 51, 52.1, 52.2 can be connected to the at least one support arm 30.1, 30.2 or to the bearing seat 26 in such a way that this or these activation elements 51, 52.1, 52.2 facilitate the movement of the lifting device 24 their active position is enabled in their rest position.
  • the at least one support arm 30.1, 30.2 can be pivotably mounted on the bearing seat 26 and pivotably on the height-adjustable support 28.
  • the shown guide elements 55.1, 55.2, 57.1, 57.2 and opening grooves 53.1, 53.2, 56.1, 56.2 are not necessary.
  • Each of the at least one support arm accordingly comprises at least two elements, a first of these two elements being pivotably mounted on the support 28 and the second of the elements being pivotably mounted on the bearing seat 26.
  • the two elements assigned to a single support arm 30.1, 30.2 are pivotably connected to one another.
  • Figure 4 shows the detail according to the in Figure 2 indicated section line AA of the lifting device 24 and a guide rail 40 for guiding the counterweight. Accordingly, the bearing seat is covered by the height-adjustable support 28.
  • the guide rail 40 comprises a fastening section 40.1 embodied as a rail foot, for example, and a guide section 40.2, the guide section 40.2 being arranged on the fastening section 40.1.
  • the height-adjustable support 28 has a guide device 60 for guiding the height-adjustable support 28 during its movement between a rest position and an active position of the lifting device 24, the guide device 60 engaging in the guide section 40.2 of the guide rail 40.
  • the bearing seat 26 can also have such a guide device 60 in order to ensure a stable fit of the bearing seat 26 and thus the lifting device 24 on the guide rail 40.
  • Fig. 5 shows a detail of the lifting device 24 in its active position and in particular a detail of the height-adjustable support 28.
  • the support 28 has an opening groove 56.2, in which opening groove 56.2 a guide element 55.2 arranged on the support arm 30.2 engages, the in Fig. 5
  • the representation shown of the lifting device 24 corresponds to its active position.
  • the activation element 52.1 designed as a spring is arranged on the support arm 30.2.
  • the opening groove 56.2 has a recess 59 which causes the support arm 30.2 to lock into place in its position corresponding to the active position of the lifting device 24.
  • Such a recess 59 prevents the lifting device 24 from being able to be moved in an uncontrolled manner from its active position into its rest position.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (7)

  1. Système d'ascenseur comportant
    - une cage d'ascenseur (6),
    - une cabine d'ascenseur (2) et un contrepoids (4), la cabine d'ascenseur (2) et le contrepoids (4) étant accouplés et disposés dans la cage d'ascenseur (6) de manière à pouvoir être déplacés dans des directions opposées, et
    - un dispositif tampon (20) disposé dans une fosse de cage (6.1) de la cage d'ascenseur (6), ledit dispositif tampon (20) limite la course du contrepoids (4) et le dispositif de tampon (20) comprend un tampon (22) et un dispositif de levage (24),
    dans lequel, dans une position de repos du dispositif de levage (24), une traversée de la cabine d'ascenseur (2) dans une tête de cage de la cage d'ascenseur (6) est possible et le dispositif de levage (24) peut être activé de telle sorte que, dans une position active du dispositif de levage (24), la course du contrepoids (4) est restreinte dans la fosse de cage (6.1) et une distance minimale pour un entretien par le personnel peut être assurée entre un plafond de cage (7) de la cage d'ascenseur (6) et la cabine d'ascenseur (2), caractérisé en ce que le dispositif de levage (24) est disposé entre le tampon (22) et le contrepoids (4).
  2. Système d'ascenseur selon la revendication 1, dans lequel le dispositif de levage (24) présente un siège de palier (26) positionné sur le tampon (22) et un appui (28) réglable en hauteur.
  3. Système d'ascenseur selon la revendication 2, comportant au moins un rail de guidage (40) permettant de guider le contrepoids (4), l'appui (28) réglable en hauteur présentant un dispositif de guidage permettant de guider l'appui (28) sur le rail de guidage (40).
  4. Système d'ascenseur selon l'une des revendications 2 et 3, dans lequel le siège de palier (26) et l'appui (28) sont reliés par au moins un bras de support (30.1, 30.2).
  5. Système d'ascenseur selon la revendication 4, dans lequel le dispositif de levage (24) présente un élément d'activation (51, 52.1, 52.2) relié au bras de support (30.1, 30.2), ledit élément d'activation (51, 52.1, 52.2) entraîne un mouvement du dispositif de levage (24) de la position de repos à la position active.
  6. Système d'ascenseur selon la revendication 5, dans lequel l'élément d'activation (51, 52.1, 52.2) est relié au siège de palier (26) ou à l'appui (28) ou à un autre élément d'activation (51, 52.1, 52.2).
  7. Système d'ascenseur selon l'une des revendications 5 et 6, dans lequel l'élément d'activation (51, 52.1, 52.2) est formé par un ressort.
EP18780126.1A 2017-10-31 2018-10-04 Dispositif de mise en uvre d'un travail d'entretien dans une cage d'ascenseur Active EP3704049B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17199429 2017-10-31
PCT/EP2018/077008 WO2019086194A1 (fr) 2017-10-31 2018-10-04 Dispositif de réalisation de travaux de maintenance dans une cage d'ascenseur

Publications (2)

Publication Number Publication Date
EP3704049A1 EP3704049A1 (fr) 2020-09-09
EP3704049B1 true EP3704049B1 (fr) 2021-08-25

Family

ID=60201450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18780126.1A Active EP3704049B1 (fr) 2017-10-31 2018-10-04 Dispositif de mise en uvre d'un travail d'entretien dans une cage d'ascenseur

Country Status (6)

Country Link
US (1) US20200283265A1 (fr)
EP (1) EP3704049B1 (fr)
CN (1) CN111295351B (fr)
AU (1) AU2018361450A1 (fr)
SG (1) SG11202003140WA (fr)
WO (1) WO2019086194A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114314250B (zh) * 2020-10-09 2023-02-17 迅达（中国）电梯有限公司 电梯轿厢阻尼装置和电梯系统
CN114803769B (zh) * 2022-05-31 2023-07-04 河南省特种设备安全检测研究院 一种电梯维护用支撑调节装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1129273A (ja) * 1997-07-11 1999-02-02 Hitachi Building Syst Co Ltd 主ロープクリアランス用調整台の取り外し方法
NO323028B1 (no) * 1999-05-14 2006-12-27 Inventio Ag Anordning for utforelse av arbeid i en heissjakt
JP2003081581A (ja) * 2001-09-12 2003-03-19 Sugiyasu Industries Co Ltd 車輌整備用リフトのスイングアーム
EP1466853A1 (fr) * 2003-04-07 2004-10-13 Inventio Ag Méthode pour l' entretien d'un ascenseur
NZ532767A (en) * 2003-05-21 2004-12-24 Inventio Ag Lift installation with a buffer for creating a zone of protection in a lift installation and a method of creating a zone of protection
EP1479636A1 (fr) * 2003-05-21 2004-11-24 Inventio Ag Amortisseur qui peut créer une zone d' inspection sûre pour ascenseur
RU2007132738A (ru) * 2006-08-31 2009-03-10 Инвенцио АГ (CH) Подъемник с кабиной и противовесом и способ размещения подъемника
CN101511716B (zh) * 2006-11-20 2013-05-01 三菱电机株式会社 电梯装置
FI119808B (fi) * 2007-12-17 2009-03-31 Kone Corp Hissin puskurijärjestely
JP2009154989A (ja) * 2007-12-25 2009-07-16 Mitsubishi Electric Building Techno Service Co Ltd エレベータのカウンタクリアランス調整装置
WO2010072657A1 (fr) * 2008-12-26 2010-07-01 Inventio Ag Contre-poids dans un système d'ascenseur
CN204022172U (zh) * 2014-06-30 2014-12-17 宁波宏大电梯有限公司 电梯机械阻止装置
US9387869B1 (en) * 2015-04-16 2016-07-12 Aviad Berger Luggage with mechanically integrated trolley
CN205944836U (zh) * 2016-08-15 2017-02-08 广东电网有限责任公司东莞供电局 手车开关检修支架

Also Published As

Publication number Publication date
EP3704049A1 (fr) 2020-09-09
SG11202003140WA (en) 2020-05-28
AU2018361450A1 (en) 2020-04-02
WO2019086194A1 (fr) 2019-05-09
CN111295351A (zh) 2020-06-16
US20200283265A1 (en) 2020-09-10
CN111295351B (zh) 2022-05-24

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