EP3704049A1 - Vorrichtung zur durchführung von wartungsarbeiten in einem aufzugsschacht - Google Patents
Vorrichtung zur durchführung von wartungsarbeiten in einem aufzugsschachtInfo
- Publication number
- EP3704049A1 EP3704049A1 EP18780126.1A EP18780126A EP3704049A1 EP 3704049 A1 EP3704049 A1 EP 3704049A1 EP 18780126 A EP18780126 A EP 18780126A EP 3704049 A1 EP3704049 A1 EP 3704049A1
- Authority
- 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.)
- Granted
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
- B66B5/0043—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 in an elevator shaft and an elevator installation with such a device.
- Elevator systems comprise a plurality of components arranged in an elevator shaft which have a specific service life. These components are regularly maintained in accordance with existing general or in-house regulations. Accordingly, there is a need for service technicians to perform maintenance tasks in a hoistway. A variety of these maintenance tasks are performed from the roof of an elevator car. In order to ensure the safety of the service technicians located on the roof of the elevator car, a minimum distance between the elevator car and the upper shaft ceiling must be maintained. In particular, in elevator cars, which have in their arrangement at the top shaft door of an elevator shaft for this purpose too small distance to the shaft ceiling, additional structural measures are required.
- EP 1 052 212 A1 shows an elevator installation with a buffer device.
- the buffer device restricts a ride of the counterweight in the hoistway such that the elevator car can only reach a topmost position in the hoistway through which a service technician located on the elevator trolley is not endangered.
- a lifting device provided specifically for this elevator installation must be provided.
- an elevator installation with a lift shaft, a An elevator car and a counterweight, wherein the elevator car and the counterweight are coupled and arranged in opposite directions in the elevator shaft, 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 a rest position of the lifting device a crossing of the elevator car in a shaft head of the elevator shaft is enabled and the lifting device is activated such that limited in an active position of the lifting device of the path of the counterweight in the pit and between a shaft ceiling of the elevator shaft and the elevator car a minimum distance for maintenance Personnel is securable, characterized in that the lifting device is arranged between the buffer and the counterweight.
- the passage of the elevator car, which is made possible in the rest position of the lifting device, is limited by the counterweight acting on the buffer device due to the coupling of the elevator car with the counterweight.
- Such a crossing is given when a floor of the elevator car is arranged higher than the level of the highest floor of the floor. In the active position of the lifting device such a crossing is prevented.
- the buffer device with the lifting device in the rest position allows unrestricted travel of the counterweight and also the elevator car, which is restricted by the lifting device in the active position.
- buffers are used to deposit the counterweight or elevator car directly on the buffer.
- the movement of the counterweight or the elevator car is damped directly by the buffer.
- This damping is achieved in that the buffer is designed to be flexible in the vertical direction.
- the buffer may essentially comprise an elastic component, for example a polyurethane block or a spring.
- the invention is based on the finding that such a lift system with a lifting device, in which the buffer immediately limits the travel of the counterweight, that is, the buffer between the lifting device and the counterweight is arranged to different constructions of this lifting device when using lifting devices in lead different elevator systems. This is due to the use of different buffers, which are arranged below the counterweight of the respective elevator installation. In order to minimize the design effort for such used in different elevator lifts and thus to realize a single construction of the lifting device for a number of different elevator systems, was contrary to the practice previously applied refrained from placing the buffer immediately under the counterweight or under the elevator car ,
- the elevator installation has a bearing seat positioned on the buffer and a height-adjustable support.
- a fixed positioning of the bearing seat on the buffer is advantageous.
- a development of the elevator system comprises at least one guide rail for guiding the counterweight, wherein the height-adjustable support has a guide device for guiding the support on the guide rail. Regardless of the load of the buffer device such a proper positioning of the height-adjustable support can be guaranteed.
- the bearing seat and the support are connected by at least one support arm.
- the bearing seat can be spaced from the support.
- the lifting device has an activation element connected to the support arm, which activating element effects a movement of the lifting device from the rest position into the active position.
- activating element effects a movement of the lifting device from the rest position into the active position.
- This activation element may be connected to the bearing seat or the support or another activation element. Such a connection causes a relative movement of the mutually movable components of the lifting device for moving this lifting device to its active position.
- This activation element may be formed by a spring.
- a spring is a simple and low-maintenance way to design such an activation element.
- FIG. 1 an elevator system with a buffer device with a lifting device
- FIG. 2 the buffer device shown in FIG. 1;
- FIG. 3 shows the buffer device shown in FIGS. 1 and 2 in an active position
- Figure 4 a support of the lifting device shown in the preceding figures
- Figure 5 a detail of the support of the lifting device.
- the elevator installation comprises an elevator shaft 6. Within this elevator shaft 6, an elevator cage 2 is movably arranged.
- the elevator car 2 is coupled by means of a support element 10 with a counterweight 4.
- the support element 10 is fixed at its first end 12.1 to 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 such that an opposing movability of the elevator car 2 to the counterweight 4 is realized.
- 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. Through these door openings 30, a passenger located on one of the floors can enter the elevator car 2 when 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 bounded 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 such that the elevator car 2 can be moved to the top floor during normal operation without the counterweight 4 resting on the buffer device 20.
- a top according to this definition of the rest position of the lifting device 24 possible Positioning of the elevator car 2 in normal operation is illustrated by means of a position 2 'in Figure 1.
- FIG. 2 shows the buffer device 20 in a shaft pit 6.1 of an elevator installation shown by way of example in FIG.
- two guide rails 40 for guiding the counterweight 4 are shown.
- 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 path of the counterweight.
- the guide rail 40 usually extends to the shaft bottom. As a result, the buffering device 20 may be disposed between the guide rails 40.
- the path of the counterweight may be limited by other 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 of the counterweight may be formed by way of example by a safety circuit which stops when it is activated the counterweight and therefore also the elevator car coupled to the counterweight in a position corresponding to this safety circuit.
- the buffering 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 ⁇ ffhungsrillen
- opening grooves 53.1, 53.2, 56.1, 56.2 can be arranged to guide the ends of the support arm 30 in the movement of the lifting device 24 from its rest position to its active position (and vice versa) in the height-adjustable support 28 or in the bearing seat 26.
- Figure 3 shows the buffer device 20 shown in Figure 2, wherein the lifting device 24 is shown in its active position.
- the lifting device 24 may have a second support arm 30.1, 30.2.
- the support arms 30.1, 30.2 are arranged such that the bearing seat 26 and the height-adjustable support 28 are spaced from each other with maximum spacing.
- one or each of the support arms 30.1, 30.2 may 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 provided for example to slide or roll in this movement of the lifting device 24 along the ⁇ ffhungsrillen 53.1, 53.2, 56.1, 56.2.
- the lifting device 24 may have one or more activation elements 51, 52.1, 52.2, which are provided for facilitated movement of the lifting device 24 from its rest position to 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 in the region of the guide element 55.1, 55.2, 57.1, 57.2 can be connected to the first support arm 30.1, 30.2 associated with this guide element 55.1, 55.2, 57.1, 57.2. With its second end, this activating element 51, 52.1, 52.2 can be fixed to an attachment point 54.1, 54.2, which attachment point 54.1, 54.2 is fixed or arranged on the height-adjustable support 28.
- the attachment point can be fixed or arranged on the bearing seat 26.
- the second end of the Activation element 51, 52.1, 52.2 may alternatively be connected in the region of the guide element 57.1, 57.2 with the second support arm 30.1, 30.2.
- the activation element or elements 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 possible in their rest position.
- the at least one support arm 30.1, 30.2 can be mounted pivotably on the bearing seat 26 and pivotably on the height-adjustable support 28.
- the guide elements shown 55.1, 55.2, 57.1, 57.2 and ⁇ ffhungsrillen 53.1, 53.2, 56.1, 56.2 are not required.
- Each of the at least one support arm therefore comprises at least two elements, wherein a first of these two elements is pivotally mounted on the support 28 and the second of the elements is pivotally mounted on the bearing seat 26.
- the two elements associated with a single support arm 30.1, 30.2 are pivotally connected together.
- Figure 4 shows the detail according to the indicated in Figure 2 section line A-A 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, which is embodied by way of example as a rail foot, and a guide section 40.2, wherein the guide section 40.2 is arranged on the fastening section 40.1.
- the height-adjustable support 28 has a guide device 60 for guiding the height-adjustable support 28 in its movement between a rest position and an active position of the lifting device 24, wherein the guide device 60 engages in the guide portion 40.2 of the guide rail 40.
- the bearing seat 26 may also include such a guide device 60 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 arranged on the support arm 30.2 guide element 55.2 engages wherein the representation of the lifting device 24 shown in FIG. 5 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 a latching of the support arm 30.2 in its position corresponding to the active position of the lifting device 24. Such a recess 59 prevents the lifting device 24 can be moved uncontrollably from its active position to its rest position.
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17199429 | 2017-10-31 | ||
| PCT/EP2018/077008 WO2019086194A1 (de) | 2017-10-31 | 2018-10-04 | Vorrichtung zur durchführung von wartungsarbeiten in einem aufzugsschacht |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3704049A1 true EP3704049A1 (de) | 2020-09-09 |
| EP3704049B1 EP3704049B1 (de) | 2021-08-25 |
Family
ID=60201450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18780126.1A Active EP3704049B1 (de) | 2017-10-31 | 2018-10-04 | Vorrichtung zur durchführung von wartungsarbeiten in einem aufzugsschacht |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20200283265A1 (de) |
| EP (1) | EP3704049B1 (de) |
| CN (1) | CN111295351B (de) |
| AU (1) | AU2018361450A1 (de) |
| SG (1) | SG11202003140WA (de) |
| WO (1) | WO2019086194A1 (de) |
Families Citing this family (2)
| 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)
| 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 (de) * | 2003-04-07 | 2004-10-13 | Inventio Ag | Verfahren zur Wartung eines Aufzuges |
| EP1479636A1 (de) * | 2003-05-21 | 2004-11-24 | Inventio Ag | Puffer zum Schaffen einer Schutzzone in einer Aufzugsanlage |
| 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 |
| RU2007132738A (ru) * | 2006-08-31 | 2009-03-10 | Инвенцио АГ (CH) | Подъемник с кабиной и противовесом и способ размещения подъемника |
| WO2008062500A1 (fr) * | 2006-11-20 | 2008-05-29 | Mitsubishi Electric Corporation | Système d'ascenseur |
| 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 (de) * | 2008-12-26 | 2010-07-01 | Inventio Ag | Gegengewicht in einer aufzugsanlage |
| 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 |
-
2018
- 2018-10-04 WO PCT/EP2018/077008 patent/WO2019086194A1/de not_active Ceased
- 2018-10-04 US US16/649,817 patent/US20200283265A1/en not_active Abandoned
- 2018-10-04 EP EP18780126.1A patent/EP3704049B1/de active Active
- 2018-10-04 AU AU2018361450A patent/AU2018361450A1/en not_active Abandoned
- 2018-10-04 SG SG11202003140WA patent/SG11202003140WA/en unknown
- 2018-10-04 CN CN201880070964.XA patent/CN111295351B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| SG11202003140WA (en) | 2020-05-28 |
| CN111295351B (zh) | 2022-05-24 |
| AU2018361450A1 (en) | 2020-04-02 |
| US20200283265A1 (en) | 2020-09-10 |
| WO2019086194A1 (de) | 2019-05-09 |
| EP3704049B1 (de) | 2021-08-25 |
| CN111295351A (zh) | 2020-06-16 |
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