EP3814265B1 - Installation d'ascenseur dotée d'un écran de protection - Google Patents

Installation d'ascenseur dotée d'un écran de protection Download PDF

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Publication number
EP3814265B1
EP3814265B1 EP19731975.9A EP19731975A EP3814265B1 EP 3814265 B1 EP3814265 B1 EP 3814265B1 EP 19731975 A EP19731975 A EP 19731975A EP 3814265 B1 EP3814265 B1 EP 3814265B1
Authority
EP
European Patent Office
Prior art keywords
counterweight
shaft
protective screen
elevator
elevator system
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
EP19731975.9A
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German (de)
English (en)
Other versions
EP3814265A1 (fr
Inventor
Johannes HÄDERER
Michael THÜRIG
Stephan Hess
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.)
Inventio AG
Original Assignee
Inventio AG
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Publication date
Application filed by Inventio AG filed Critical Inventio AG
Publication of EP3814265A1 publication Critical patent/EP3814265A1/fr
Application granted granted Critical
Publication of EP3814265B1 publication Critical patent/EP3814265B1/fr
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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
    • B66B5/0043—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
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables

Definitions

  • the invention relates to an elevator system with a protective screen that shields a counterweight.
  • Elevator systems usually include an elevator shaft, an elevator car and a counterweight.
  • the elevator shaft has a shaft head at its upper end and a shaft pit at its lower end.
  • the elevator car and the counterweight are arranged inside the elevator shaft, the counterweight usually being arranged on a shaft wall of the elevator shaft and the elevator car and the counterweight being movable in opposite directions to one another. This means that the counterweight is lowered into the shaft pit along its travel path when the elevator car is moved to an uppermost position within the elevator shaft and vice versa.
  • a lowering of the elevator car or the counterweight can endanger the safety of a service technician located in the shaft pit.
  • a protective screen In order to protect the service technician from the falling counterweight, a protective screen is usually installed, which blocks access to the counterweight travel path.
  • WO 03 08 2722 shows such a protective screen, which is arranged adjacent to the travel path of the counterweight in such a way that a person cannot under any circumstances be injured by the counterweight being moved in the shaft pit.
  • This protective screen has large dimensions and is correspondingly expensive.
  • CN 207 061 584 U and JP 2013 095571 A disclose elevator systems according to the preamble of claim 1.
  • an elevator system with a counterweight that can be moved in an elevator shaft, which counterweight can be provided for weight compensation of an elevator car that can be moved in the opposite direction of the counterweight, and a protective screen that is or can be arranged in a shaft pit of the elevator shaft and has a height section, the height section essentially is aligned parallel to a travel path of the counterweight, with the protective screen for to prevent a person in the shaft pit from entering the travel path of the counterweight, characterized in that the protective screen has a horizontally arranged bend, with an angled section of the protective screen adjoining the bend extending into the projection of the counterweight that is available in the direction of travel.
  • the invention is based on the finding that the largest possible space, which can be occupied by the counterweight along its travel path, has its lowest limit several meters above the bottom of the shaft.
  • this space which is dimensioned as large as possible, therefore also encloses that position of the counterweight which position can be occupied by the counterweight in its lowest position adjacent to at least one buffer device that is maximally compressed.
  • the bottom of the shaft forms the lower boundary of the shaft pit or elevator shaft.
  • the counterweight is not present at any point in time behind an essential lowermost section of the height section, which may be at its lowermost end only a few centimeters from the bottom of the shaft. This means that this lowermost section only prevents a person from entering a space that cannot be directly occupied by the counterweight.
  • the angled section of the protective screen is preferably arranged directly below this said largest possible space.
  • the bend can alternatively be formed with an acute angle or an obtuse angle.
  • the travel of the counterweight is defined in the present description by the entire space that the counterweight can occupy during normal operation of the elevator system plus the space that the counterweight in a fully compressed buffer device occupies when contacting this buffer device.
  • a further development of the elevator installation includes a buffer device arranged or arrangable in the shaft pit to limit the travel path of the counterweight in an emergency situation, the angled section of the protective screen having at least one cutout through which cutout the buffer device protrudes.
  • Such a buffer device is usually arranged standing in the shaft pit in the projection of the counterweight available in the travel direction. This means that the buffer device, which is not maximally compressed, extends from the bottom of the shaft to within the largest possible space that can be occupied by the counterweight along its travel path.
  • the cutout of the angled section of the protective screen enables the use or operation of such a buffer device, which is arranged standing on the shaft floor, for example.
  • the buffer device can be attached to a framework within the pit or to the guide rails.
  • a height section of the protective screen arranged parallel to the travel path of the counterweight has a maintenance cutout, preferably closable with a cover, for inspection and/or maintenance of the buffer device.
  • Such a maintenance cutout or window cutout enables inspection of the components of the elevator system arranged behind the protective screen and maintenance thereof. If necessary, maintenance of other elements of the elevator system, in particular the buffer device or a lower cable device that may be present, is also made possible.
  • the angled portion of the protective screen is a fold or bend.
  • the advantage of such a fold or bend is that the protective screen can be manufactured in a simple manner and is therefore inexpensive.
  • the external dimensions of the angled section of the protective screen cover at least 50% of the area projected by the counterweight in the direction of travel. It is advantageous that a person in the shaft pit cannot get into the travel path of the counterweight by reaching behind the angled section of the protective screen.
  • the travel path of the counterweight is arranged on a shaft wall of the elevator shaft, and the angled section extends up to the shaft wall. Accordingly, increased safety can be achieved for service technicians who carry out maintenance work in the shaft pit.
  • the angled section is preferably spaced at a distance of less than 10 cm or less than 5 cm from the shaft wall. Accordingly, the angled section can be designed to touch the shaft wall.
  • a height section of the protective screen arranged parallel to the travel path of the counterweight extends up to a height of at least 2 m, preferably 2.5 m, above a shaft floor of the shaft pit. In this way it can be ensured that a person in the elevator shaft or in the shaft pit cannot reach or reach beyond the protective screen into the travel path of the counterweight.
  • FIG 1 shows an elevator system 1 with an elevator shaft 2, an elevator car 18 and a counterweight 10.
  • the elevator shaft 2 comprises a shaft head 8 at its upper end and a shaft pit 4 at its lower end and is usually delimited laterally by at least one shaft wall 5.
  • the elevator shaft 2 is delimited by the shaft floor 6.
  • the elevator car 18 is arranged in the elevator shaft 2 such that it can be moved along a main alignment of the elevator shaft 2 .
  • the counterweight 10 can be moved in the opposite direction to the elevator car 18 and is arranged, for example, on the shaft wall 5 .
  • a buffer device 11 can be arranged in the shaft pit 4 below the counterweight 10, so that the travel path of the counterweight 10 is limited in an emergency situation.
  • a protective screen 20 is arranged in the shaft pit 4 in such a way that the travel path of the counterweight 10 is separated from the region of the shaft pit 4 which can be entered by a service technician.
  • the conventional protective screen 20 shown essentially consists of a height section 26 aligned parallel to the travel path of the counterweight 10.
  • the elevator car 18 and the counterweight 10 can be connected by means of a support element 12 .
  • the support element 12 is guided over rollers 14,16.
  • One of these rollers 14, 16 can be designed as a traction sheave coupled to a drive motor for driving the elevator car 18 or the counterweight 10.
  • the elevator car 18 shown is arranged on a top shaft door 19 of the elevator system 1 shown as an example.
  • the counterweight 10 is located in a position arranged in the shaft pit 4 in accordance with the stated ability to move in the opposite direction, with the buffer device 11 being unactuated by the counterweight 10 .
  • the counterweight 10 is preferably spaced apart from the buffer device 11 in the position shown.
  • the figure 2 shows a detail of a shaft pit 4 of a first elevator shaft 2 with a protective screen 20 according to a first embodiment, wherein in figure 3 the side view of the in figure 2 shown elements of the elevator system is shown.
  • FIG. 4 shows a section of a shaft pit 4 of a second elevator shaft 2 with a protective screen 20 according to a second embodiment, with figure 5 the corresponding plan view according to in figure 4 shown section BB is shown.
  • the shaft pits 4 of both according to Figures 2 to 5 Elevator shafts 2 shown are delimited at the bottom by a shaft floor 6 and laterally by a shaft wall 5 .
  • at least one buffer device 11, 11.1, 11.2 is arranged standing on the bottom 6 of the shaft.
  • the buffer device 11, 11.1, 11.2 shown as an example has a base 13, 13.1, 13.2 and a receiving stamp 15.
  • the lower section of the base 13, 13.1, 13.2, which section has a rectangular cross section, can be made of concrete.
  • the receiving stamp 15 is provided for contacting by the counterweight 10 in an emergency situation shown.
  • the figures 2 and 3 shown counterweight 10 its lowest possible positioning. This means that the counterweight 10 is positioned in such a way that the receiving plunger 15 of the buffer device 11 , 11 .
  • Each of the protective screens 20 includes a height section 26, a bend 21 and an angled section 24.
  • the height section 26 extends parallel to the direction of travel of the counterweight 10 and is slightly spaced from the counterweight 10. A correspondingly small spacing means that a service technician cannot enter the space between the height section 26 and the counterweight 10 .
  • the bend 21 is arranged at the lower end of the vertical section 26 .
  • the height section 26 of the protective screen 20 extends from the bend 21 to a height H of, for example, 2.0 m, preferably to a height H of 2.50 m, this height H only being figure 3 is shown or designated.
  • the bend 21 is preferably aligned horizontally and can be produced by edging or bending or comparable methods.
  • An angled section 24 is arranged on the bend 21 , which angled section 24 can be arranged essentially parallel to the shaft base 6 .
  • the angled section 24 can be screwed or welded to the height section 26, for example.
  • the angled sections 24 of the protective screens 20 shown have one or a plurality of cutouts 32, through which cutout 32 or through which cutouts 32 the at least one buffer device 11, 11.1, 11.2 protrudes. Each of these cutouts 32 is assigned to a single buffer device 11, 11.1, 11.2.
  • the wall of the cutouts 32 made in the angled sections 24 can be horizontally spaced from the outer dimensions of the buffer device 11, 11.1, 11.2 in such a way that injury by reaching through between the buffer device 11, 11.1, 11.2 and the angled section 24 is impossible.
  • At least one further cutout (not shown), for example for the passage of a compensation element, can be provided within the angled section 24 .
  • the angled section 24 shown extends from the angled portion 21 to preferably the shaft wall 5, on which shaft wall 5 the counterweight 10 is movably arranged. Accordingly, the angled section 24 is preferably spaced at a distance of less than 10 cm or less than 5 cm from the shaft wall 5 .
  • the protective screen 20, preferably the height section 26, has a maintenance cutout 22 for inspection and/or maintenance of the buffer device 11.
  • a maintenance cutout 22 for example, the buffer device 11, in particular its receiving stamp 15 or switch of this buffer device 11, or the compensation element or a triggering device of the safety brake can be adjusted or serviced.
  • the in the figures 4 and 5 shown angled portion 24 of the protective screen 20 extends in contrast to in the figures 2 and 3 the angled section 24 shown does not reach the shaft wall 5.
  • the counterweight 10 shown has a position within the elevator shaft 2 which corresponds to an uppermost position of the elevator car, not shown, in normal operation. Correspondingly, the counterweight does not contact the buffer device 11 and in particular the receiving stamp 15 .
  • the line 30 shown within the shaft pit 6 therefore corresponds to the lowest possible position of the counterweight 10 in an emergency situation.
  • the largest possible space 30 shown in the top view corresponds to the projection of the counterweight 10 in its direction of travel.
  • the angled section 24 of the protective screen 20 extending in the direction of the shaft wall 5 overlaps this projection of the counterweight 10 by at least 50%. This means that an overlap D of the angled section 24 with respect to the counterweight 10 is at least 50% of the depth C of the counterweight 10 .
  • a percentage overlap, which results from a quotient D by C, is without taking into account an exemplary cutout 32, which cutout 32 is made in the angled section 24 in order to be able to position the buffer device 11 below the counterweight 10.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (7)

  1. Système d'ascenseur (1) comportant
    - un contrepoids (10) qui peut être déplacé dans une cage d'ascenseur (2), lequel contrepoids (10) peut être prévu pour compenser le poids d'une cabine d'ascenseur (18) qui peut être déplacée dans la direction opposée au contrepoids (10), et
    - un écran de protection (20) qui est ou peut être disposé dans un puits de cage (4) de la cage d'ascenseur (2) et qui présente une section verticale (26), la section verticale (26) étant orientée sensiblement parallèlement à une course du contrepoids (10), l'écran de protection (20) étant prévu pour empêcher qu'une personne se trouvant dans le puits de cage (4) n'entre dans la course du contrepoids (10), caractérisé en ce que l'écran de protection (20) présente un coude (21) disposé horizontalement, une section coudée (24) de l'écran de protection (20) se raccordant au coude (21) s'étendant dans la projection du contrepoids (10) obtenue dans le sens de déplacement.
  2. Système d'ascenseur (1) selon la revendication 1, comprenant un dispositif tampon (11) qui est ou peut être disposé dans le puits de cage (4) pour limiter la course du contrepoids (10), la section coudée (24) de l'écran de protection (20) présentant au moins une découpe (32) à travers laquelle découpe (32) le dispositif tampon (11) fait saillie.
  3. Système d'ascenseur (1) selon l'une des revendications précédentes, dans lequel une section verticale (26) de l'écran de protection (20) disposée parallèlement à la course du contrepoids (10) présente une découpe de maintenance (22), de préférence pouvant être fermée avec un couvercle, pour l'inspection et/ou la maintenance du dispositif tampon (11).
  4. Système d'ascenseur (1) selon l'une des revendications précédentes, dans lequel le coude (21) de l'écran de protection (20) est un pliage ou une courbure.
  5. Système d'ascenseur (1) selon l'une des revendications précédentes, dans lequel les dimensions externes de la section coudée (24) de l'écran de protection (20) couvrent au moins 50 % de la surface projetée par le contrepoids (10) dans le sens de déplacement.
  6. Système d'ascenseur (1) selon l'une des revendications précédentes, dans lequel la course du contrepoids (10) est ou peut être disposée sur une paroi de cage (5) de la cage d'ascenseur (2) et la section coudée (24) peut s'étendre ou s'étend jusqu'à la paroi de cage (5).
  7. Système d'ascenseur (1) selon l'une des revendications précédentes, dans lequel une ou la section verticale (26) de l'écran de protection (20) disposée parallèlement à la course du contrepoids (10) peut s'étendre ou s'étend jusqu'à une hauteur d'au moins 2 m, de préférence 2,5 m, au-dessus d'un plancher de cage (6) du puits de cage (4).
EP19731975.9A 2018-06-28 2019-06-18 Installation d'ascenseur dotée d'un écran de protection Active EP3814265B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18180434 2018-06-28
PCT/EP2019/065957 WO2020002039A1 (fr) 2018-06-28 2019-06-18 Installation d'ascenseur ayant un écran de protection

Publications (2)

Publication Number Publication Date
EP3814265A1 EP3814265A1 (fr) 2021-05-05
EP3814265B1 true EP3814265B1 (fr) 2022-06-29

Family

ID=62816390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19731975.9A Active EP3814265B1 (fr) 2018-06-28 2019-06-18 Installation d'ascenseur dotée d'un écran de protection

Country Status (7)

Country Link
US (1) US11267676B2 (fr)
EP (1) EP3814265B1 (fr)
CN (1) CN112203966B (fr)
AU (1) AU2019295892B2 (fr)
PL (1) PL3814265T3 (fr)
SG (1) SG11202009621RA (fr)
WO (1) WO2020002039A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11202009621RA (en) * 2018-06-28 2020-10-29 Inventio Ag Lift system with a protective screen
EP3760561B1 (fr) * 2019-07-05 2022-05-11 Otis Elevator Company Ensemble ascenseur ayant une butée de blocage de contrepoids
EP3904264A1 (fr) * 2020-04-30 2021-11-03 KONE Corporation Guide de compensation, écran de contrepoids, ascenseur et procédé

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB695545A (en) * 1949-10-11 1953-08-12 R F Warry Ltd Improvements in safety gates for hoists
CN1304266C (zh) * 2002-04-01 2007-03-14 三菱电机株式会社 升降机主绳索伸长补偿装置
JP2003341950A (ja) * 2002-05-24 2003-12-03 Hitachi Building Systems Co Ltd エレベータの安全装置
JP4406273B2 (ja) * 2003-12-10 2010-01-27 オーチス エレベータ カンパニー エレベータの作業保護装置
WO2008002300A1 (fr) * 2006-06-26 2008-01-03 Otis Elevator Company Butée escamotable permettant de maintenir un dégagement en hauteur au-dessus d'une cabine d'ascenseur
JP2010202394A (ja) * 2009-03-05 2010-09-16 Toshiba Elevator Co Ltd エレベータのピット遮蔽体
JP2010260682A (ja) * 2009-05-07 2010-11-18 Hitachi Ltd エレベータ装置
JP5619273B2 (ja) * 2010-04-12 2014-11-05 オーチス エレベータ カンパニーＯｔｉｓｅｌｅｖａｔｏｒ Ｃｏｍｐａｎｙ 低オーバヘッドエレベータの可倒式ストップ
CN201842550U (zh) * 2010-09-28 2011-05-25 苏州海仑士科技有限公司 一种网孔式对重保护屏
JP5805499B2 (ja) * 2011-11-02 2015-11-04 株式会社日立製作所 エレベーター装置
JP5767573B2 (ja) * 2011-11-24 2015-08-19 株式会社日立製作所 エレベータ保守用装置
CN107032210B (zh) * 2015-07-13 2020-12-01 奥的斯电梯公司 电梯系统消声组件和方法
CN206553001U (zh) * 2017-03-07 2017-10-13 江苏西德电梯有限公司 一种板材分段可调式对重护栏
CN206553007U (zh) * 2017-03-24 2017-10-13 河北科莱电梯有限公司 一种电梯对重防护罩
CN206915529U (zh) 2017-03-27 2018-01-23 广东通立电梯有限公司 一种电梯对重护栏
EP3398894B1 (fr) * 2017-05-05 2019-11-20 KONE Corporation Système d'ascenseur avec écran de contrepoids
US10479648B2 (en) * 2017-05-12 2019-11-19 Otis Elevator Company Automatic elevator inspection systems and methods
CN207061584U (zh) 2017-08-28 2018-03-02 湖州高恒电梯配件有限公司 一种高强度的多面对重防护栏
CN107285168A (zh) * 2017-08-28 2017-10-24 湖州高恒电梯配件有限公司 高强度的多面对重防护栏
US11014783B2 (en) * 2018-02-08 2021-05-25 Otis Elevator Company Protective sleeve for elevator belt
SG11202009621RA (en) * 2018-06-28 2020-10-29 Inventio Ag Lift system with a protective screen

Also Published As

Publication number Publication date
SG11202009621RA (en) 2020-10-29
WO2020002039A1 (fr) 2020-01-02
AU2019295892B2 (en) 2022-03-31
US20210163259A1 (en) 2021-06-03
US11267676B2 (en) 2022-03-08
CN112203966B (zh) 2022-12-23
AU2019295892A1 (en) 2020-12-24
PL3814265T3 (pl) 2022-09-05
CN112203966A (zh) 2021-01-08
EP3814265A1 (fr) 2021-05-05

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