WO2018078211A1 - Ascenseur et garde-corps de toit de cabine d'ascenseur - Google Patents

Ascenseur et garde-corps de toit de cabine d'ascenseur Download PDF

Info

Publication number
WO2018078211A1
WO2018078211A1 PCT/FI2016/050749 FI2016050749W WO2018078211A1 WO 2018078211 A1 WO2018078211 A1 WO 2018078211A1 FI 2016050749 W FI2016050749 W FI 2016050749W WO 2018078211 A1 WO2018078211 A1 WO 2018078211A1
Authority
WO
WIPO (PCT)
Prior art keywords
elevator
railing
elevator car
roof
horizontal bar
Prior art date
Application number
PCT/FI2016/050749
Other languages
English (en)
Inventor
Matti RÄSÄNEN
Markku Haapaniemi
Ville Myyryläinen
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
Priority to PCT/FI2016/050749 priority Critical patent/WO2018078211A1/fr
Publication of WO2018078211A1 publication Critical patent/WO2018078211A1/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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B66B5/0081—Safety of maintenance personnel by preventing falling by means of safety fences or handrails, being operable or not, mounted on top of the elevator car

Definitions

  • the present invention relates to an elevator as defined in the preamble of claim 1 and an elevator car roof railing as defined in the preamble of claim 6.
  • This invention relates particularly to an elevator where a headroom is low.
  • the headroom in this context means the distance between the floor of the topmost floor and the ceiling of the elevator shaft.
  • the headroom can be so low that the height of the elevator shaft is equal to the height of the floors of the building.
  • the elevator shaft can be totally inside the building.
  • Various tasks such as tests, inspections, adjustment works, maintenance or repairs, later referred in a shorter way only as "maintenance work", are often performed in the elevator shaft.
  • the maintenance work is done on the roof of the elevator car.
  • the safety of the persons performing the tasks mentioned above has always to be secured.
  • One way to secure the safety of the persons performing the tasks on the roof of the elevator car is to equip the roof with a railing that act as a safety railing that prevents the persons falling down from the roof the elevator car.
  • the railings are fastened firmly in their position and the height of the railing cannot be adjusted after the fastening.
  • the railings are fastened firmly in their position and the height of the railing cannot be adjusted after the fastening.
  • a low headroom fitted railings may cause problems when the elevator car is driven to its uppermost position at the upper part of the elevator shaft.
  • different structures such as a shaft top beam with diverting pulleys for suspension ropes or belts of the elevator car may extend so down that the rail- mg hits to it when the elevator car is driven to its uppermost position that is, for example, somewhat higher than the normal position on the top floor.
  • a lifting hook or a suspension loop in the ceiling of the elevator shaft may cause the same kinds of problems.
  • One objective of the present invention is to eliminate drawbacks of prior art technology and to achieve an elevator and an elevator car roof railing where the headroom at the upper part of the elevator shaft can be as low as possible, and the railing does not prevent the elevator car running as up as possible.
  • Another objective of the present invention is to improve safety at work by preventing the hands of maintenance persons to hurt between the firmly fixed railing and the fixed structures at the upper part of the elevator shaft .
  • the elevator according to the invention is characterized by what is disclosed in the characterization part of claim 1.
  • the elevator car roof railing according to the invention is characterized by what is disclosed in the characterization part of claim 6.
  • Other embodiments of the invention are characterized by what is disclosed in the other claims.
  • inventive content of the application can also be defined differently than in the claims presented below.
  • inventive content may also consist of several separate inventions, especially if the invention is considered in the light of expressions or implicit sub-tasks or from the point of view of advantages or categories of advantages achieved.
  • some of the attributes contained in the claims below may be superfluous from the point of view of separate inventive concepts.
  • the different details presented in connection with each embodiment can also be applied in other embodiments.
  • at least some of the subordinate claims can, in at least some situations, be deemed to be inventive in their own right.
  • the present invention provides an elevator comprising an elevator car moving along a vertical path in an elevator shaft, the elevator car equipped with a railing extending upwards from the roof of the elevator car, and which elevator comprises a structural part attached to the elevator shaft above the elevator car and extending downwards to a lower position than the highest position reached by the railing.
  • the railing comprises one or more yielding sections located under the structural part and arranged to yield downwards.
  • the yielding section, or at least a part of it, is arranged to yield towards the roof of the elevator car .
  • One advantage of the invention is that firmly fixed static railings can be used also in those elevators where the headroom is low and insufficient. Another advantage is that the structure of the railing according to the invention is reliable and simple compared to the railings of prior art mentioned above. Yet another advantage of the solution according to the invention is that thanks to the yielding section of the top edge of the railing the hands of the maintenance persons are in better safe. This improves the safety at work .
  • Fig. 1 presents in a simplified and diagrammatic back view a part of the building where the back wall of the elevator shaft is removed, and an elevator in the elevator shaft, in which elevator the solution according to the invention can be used,
  • Fig. 2 presents in a simplified and diagrammatic back view the upper part of the elevator shaft with the elevator car in the building according to Fig. 1,
  • Fig. 3 presents in a simplified and diagrammatic side view the upper part of the elevator shaft with the elevator car in the building according to Fig. 1,
  • Fig. 4 presents in a simplified and diagrammatic side view an upper part of the elevator car according to the invention with a railing in a situation where the yielding section of the railing is in its uppermost position
  • Fig. 5 presents m a simplified and diagrammatic side view an upper part of the elevator car according to the invention with the railing in a situation where the yielding section of the railing is in its lowermost position .
  • Figure 1 presents in a simplified and diagrammatic back view a part of the building 1 where the back wall of the elevator shaft lc is removed, and an elevator in the elevator shaft lc, in which elevator the solution according to the invention can be used.
  • the building 1 has a roof la just above the elevator shaft lc and four floors lb served by the elevator .
  • the elevator comprises among other things an elevator car 2 supported by a sling 9.
  • the elevator car 2 is arranged to run up and down in the elevator shaft lc along guide rails 3, and a counterweight or balance weight 5 that is also arranged to run up and down in the elevator shaft lc along its guide rails which are not presented in figure 1 for the sake of clarity. Later in this connection only balance weight 5 is mentioned when either counterweight or balance weight is meant .
  • the supporting and moving of the elevator car 2 are separated from each other. This makes it possible to achieve an elevator structure where the height of the headroom above the elevator car can be is low as possible.
  • the elevator car 2 is driven by a hoisting machinery 8 equipped with a drive wheel 7.
  • the hoisting machinery 8 is located at the bottom part of the elevator shaft lc, below the elevator car 2 and advantageously below the first floor level lb.
  • a traction member 6 is connected between the balance weight 5 and the elevator car 2.
  • the traction member 6 can be a single member or a bunch of similar parallel members, for instance, the traction member 6 can be a toothed belt, chain or other type of member that does not slip on the drive wheel 7. In this embodiment the suspension ratio of the traction member 6 is 1:1.
  • the first end of the traction member 6 is secured at its first fastening point, for example at the bottom part of the elevator car 2. From the first fastening point the traction member 6 is led downwards to go under and around the drive wheel 7 of the hoisting machinery 8 at the bottom part of the elevator shaft lc, from where the traction member 6 is led to go under and around a diverting pulley 6a from where the traction member 6 continues upwards to its second fastening point, for example at the lower part of the balance weight 5.
  • the elevator car 2 is suspended by suspension element 4 that is connected between the balance weight 5 and the elevator car 2.
  • the suspension element 4 can be a single member or a bunch of similar parallel members, for instance suspension ropes.
  • the suspension ratio of the suspension element 4 is 1:1.
  • the first ends of the suspension element 4 are secured at their first fastening point, for example at the top part of the elevator car 2, from which the suspension element 4 is led upwards to go over and around a diverting pulleys 4a that are situated, for instance in the shaft top beam 3a at the upper part of the elevator shaft lc.
  • FIG. 2 presents in a simplified and diagrammatic back view the upper part of the elevator shaft lc with the elevator car 2 in the building according to figure 1
  • figure 3 presents in a simplified and diagrammatic side view the upper part of the elevator shaft lc with the elevator car 2 in the building according to figure 1.
  • the elevator car 2 is in its uppermost position.
  • the elevator car comprises a railing structure 2a at the edges of the roof of the elevator car 2.
  • the railing structure 2a acts as a safety railing.
  • the railing 2a extends upwards from the roof.
  • the shaft top beam 3a acting as a structural part at the upper part of the elevator shaft lc extends so down that it would collide the railing when the elevator goes to its uppermost position if the railing were a normal fixed height railing.
  • the railing 2a comprises a downward yielding section 12 at least in one of its four skeleton frames.
  • the yielding section 12 is situated in all necessary locations in any of the skeleton frames, for example in two opposite skeleton frames of the railing 2a, like in the embodiment example.
  • the yielding section 12, or at least a part of it yields towards the roof of the elevator car 2 after hitting to the shaft top beam 3a or the structural part or another obstacle. Yielding here means that at least the upper part of the yielding section 12 moves towards the roof of the elevator car 2.
  • Figures 4 and 5 present in a side view the railing 2a according to the invention in a more detailed way.
  • the walls of the railing 2a are preferably skeleton frames comprising a group of vertical bars 10 and a group of horizontal bars 11, 11a.
  • the horizontal bars 11, 11a are fastened fixedly at their height levels.
  • the upper horizontal bars 11 form a part of the upper edge of the railing 2a whose distance to the roof of the car 2 is static, and said upper edge is arranged to extend higher than the lowest point of the structural part 3a when the elevator car 2 is reaching the uppermost position of its trajectory.
  • the upper horizontal bars 11 that form the upper edge of the railing 2a can be of different length.
  • the upper edge of the railing 2a is formed of two static horizontal bars 11 and one vertically movable horizontal bar 12a that belong to the yielding section 12.
  • the length of each static horizontal bar 11 is only a part of the whole length of the upper edge of the railing 2a. Whereas the length of the static horizontal bars 11 in the adjacent sides can be as long as the whole sidewall.
  • the downward yielding section 12 is situated in the middle of the upper part of the skeleton frame so that when the elevator car 2 rises upwards and the upper surface or edge of the downward yielding section 12 hits an obstacle, for in- stance, the shaft top beam 3a the downward yielding section 12 presses downwards and makes room for the elevator car 2 to rise.
  • the number and position of the downward yielding sections 12 can vary depending the elevator structure and the obstacles at the top part of the elevator shaft lc.
  • the railing 2a may comprise, for instance only one, two or three downward yielding sections 12, or four downward yielding sections 12, one in each wall of the railing 2a, or even more, if needed.
  • each downward yielding section 12 is directly under the obstacle it is intended for.
  • each yielding section 12 is situated under the obstacle, such as the structural part 3a, substantially in the same vertical line or plane with the obstacle.
  • each yielding section 12 is situated in the trajec- tory line of the elevator car 2 between the roof of the elevator car 2 and the obstacle, such as the structural part 3a.
  • the downward yielding section 12 comprises the vertically movable substantially horizontal bar 12a, as mentioned above, a static horizontal bar 12c and a damping mechanism 12b, such as a spring system between the movable bar 12a and the static bar 12c.
  • the downward yielding section 12 comprises vertical guide rails 13 affecting at each end of the movable horizontal bar 12a.
  • the movable horizontal bar 12a of the downward yielding section 12 is the upper bar and is fitted in between the fixedly fastened static upper horizontal bars 11 so that its up- per surface is in its normal position on the same height level as the upper surface of the static upper horizontal bars 11.
  • the ends of the movable horizontal bar 12a are fitted to run along the guide rails 13 when the movable horizontal bar 12a moves up and down.
  • the static horizontal bar 12c of the downward yielding section 12 is the lower bar and is fastened fixedly at its location below the movable horizontal bar 12a.
  • the damping mechanism 12b between the movable horizon- tal bar 12a and the static horizontal bar 12c comprises, for example, two springs which press shorter when the movable horizontal bar 12a moves downwards towards the roof of the elevator car 2 and so makes the downward movement of the movable horizontal bar 12a possible and at the same time dampen the movement.
  • the dampening force of the springs or spring force of the damping mechanism 12b is selected so that the movable horizontal bar 12a does not yield towards the roof of the elevator car 2 too easily but gives suffi- cient support if somebody unintentionally leans towards the movable horizontal bar 12a.
  • the spring force of the damping mechanism 12b is at the same time selected so that a hand or other part of a human body that is pressed between the obstacle, such as the structural part 3a and the movable horizontal bar 12a will not be injured.
  • suspension and/or traction ratio of the elevator car can be different from what is presented above.
  • the suspension and/or traction ratio can be, for instance 2:1.
  • suspension and traction arrangement of the elevator car can be different from what is presented above.
  • the location of the hoisting machinery can also be in the upper part of the elevator shaft, and the suspension and traction of the elevator car can be carried out in different ways, for instance with common hoisting ropes that suspend the elevator car and the balance weight and also move them up and down.
  • damping mechanism between the movable horizontal bar and the second horizontal bar of the downward yielding section may not necessarily comprise mechanical spring elements but can also comprise gas springs or other suitable damping elements.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un ascenseur et un garde-corps de toit de cabine d'ascenseur. L'ascenseur comprend une cabine d'ascenseur (2) se déplaçant le long d'un trajet vertical dans une cage d'ascenseur (1c), la cabine d'ascenseur (2) étant équipée d'un garde-corps (2a) s'étendant vers le haut à partir du toit de la cabine d'ascenseur (2), et lequel ascenseur comprend une partie structurelle (3a) fixée à la cage d'ascenseur (1c) au-dessus de la cabine d'ascenseur (2) et s'étendant vers le bas jusqu'à une position inférieure à la position la plus élevée atteinte par le garde-corps (2a). Le garde-corps (2a) comprend une ou plusieurs sections élastiques (12) situées sous la partie structurelle (3a) et agencées pour s'étendre vers le bas.
PCT/FI2016/050749 2016-10-25 2016-10-25 Ascenseur et garde-corps de toit de cabine d'ascenseur WO2018078211A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2016/050749 WO2018078211A1 (fr) 2016-10-25 2016-10-25 Ascenseur et garde-corps de toit de cabine d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2016/050749 WO2018078211A1 (fr) 2016-10-25 2016-10-25 Ascenseur et garde-corps de toit de cabine d'ascenseur

Publications (1)

Publication Number Publication Date
WO2018078211A1 true WO2018078211A1 (fr) 2018-05-03

Family

ID=62024438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2016/050749 WO2018078211A1 (fr) 2016-10-25 2016-10-25 Ascenseur et garde-corps de toit de cabine d'ascenseur

Country Status (1)

Country Link
WO (1) WO2018078211A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01281281A (ja) * 1988-05-06 1989-11-13 Mitsubishi Electric Corp エレベーターのかご上安全さく
EP1346942A1 (fr) * 2000-12-28 2003-09-24 Mitsubishi Denki Kabushiki Kaisha Dispositif rampe superieure de cabine d'ascenseur
WO2016135922A1 (fr) * 2015-02-26 2016-09-01 三菱電機株式会社 Dispositif d'ascenseur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01281281A (ja) * 1988-05-06 1989-11-13 Mitsubishi Electric Corp エレベーターのかご上安全さく
EP1346942A1 (fr) * 2000-12-28 2003-09-24 Mitsubishi Denki Kabushiki Kaisha Dispositif rampe superieure de cabine d'ascenseur
WO2016135922A1 (fr) * 2015-02-26 2016-09-01 三菱電機株式会社 Dispositif d'ascenseur

Similar Documents

Publication Publication Date Title
US9604820B2 (en) Method and elevator arrangement
US8291568B2 (en) Method of installing an elevator
EP0619263B1 (fr) Disposition des cordes de compensation dans un ascenceur
KR20150095918A (ko) 리프트의 설치 방법
US9546076B2 (en) Suspension arrangement and guide shoe arrangement for an elevator
EP3353107A1 (fr) Procédé d'installation d'un ascenseur lors de la phase de construction d'un bâtiment
KR100351275B1 (ko) 머신룸 레스 엘리베이터
JP2015009989A (ja) エレベータロープ振れ抑制システム
FI123922B (fi) Laitteisto hissin kompensaatioköysien kiristämiseksi ja hissi
AU2013361851B2 (en) Maintenance method for a lift
JP4107863B2 (ja) エレベータ装置
WO2006053935A1 (fr) Agencement de câblage d’ascenseur
JP4765444B2 (ja) エレベータのロープ振れ止め装置
US6085872A (en) Roped hydraulic elevator
JP3406173B2 (ja) エレベーターピット用梯子
WO2018078211A1 (fr) Ascenseur et garde-corps de toit de cabine d'ascenseur
JP6336225B2 (ja) エレベータ装置
JP7003954B2 (ja) ダブルデッキエレベータ
US20240017964A1 (en) Construction elevator arrangement and a method for producing the same
JP2012158459A (ja) 油圧式エレベータをつるべ式エレベータにリニューアルする方法
KR20180118760A (ko) 엘리베이터 장치
KR20180110770A (ko) 승강기 안전장치의 일면 쇄기식 점차 비상정지장치
CN105460739A (zh) 电梯

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: 16919704

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: 16919704

Country of ref document: EP

Kind code of ref document: A1