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EP1175367B1 - Systeme de freinage automatique d'une cabine d'ascenseur - Google Patents

Systeme de freinage automatique d'une cabine d'ascenseur Download PDF

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Publication number
EP1175367B1
EP1175367B1 EP00925371A EP00925371A EP1175367B1 EP 1175367 B1 EP1175367 B1 EP 1175367B1 EP 00925371 A EP00925371 A EP 00925371A EP 00925371 A EP00925371 A EP 00925371A EP 1175367 B1 EP1175367 B1 EP 1175367B1
Authority
EP
European Patent Office
Prior art keywords
pulley
car
stopping
braking system
stopping mechanism
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.)
Expired - Lifetime
Application number
EP00925371A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1175367A1 (fr
Inventor
Jean-Yves Bluteau
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.)
ThyssenKrupp Elevator Manufacturing France SAS
Original Assignee
ThyssenKrupp Elevator Manufacturing France SAS
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 ThyssenKrupp Elevator Manufacturing France SAS filed Critical ThyssenKrupp Elevator Manufacturing France SAS
Publication of EP1175367A1 publication Critical patent/EP1175367A1/fr
Application granted granted Critical
Publication of EP1175367B1 publication Critical patent/EP1175367B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • 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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the present invention relates to an automatic braking system of a elevator car designed to stop it when it reaches or exceeds a speed displacement limit inside an elevator shaft.
  • FIG. 1 An elevator installation which is equipped with a braking system according to the known state of the art.
  • This installation is essentially consisting of an elevator car 10 which is moved between the different floors of an elevator shaft (not shown), for example by means of a machinery 20 acting on a cable or a bundle of traction cables 21 and comprising a counterweight 22.
  • the elevator car 10 is guided in its movement by side rails extending vertically in the elevator shaft and on which the cabin 10 is supported by guides 31. For the sake of clarity, only one of these rails 30 has been shown in FIG. 1.
  • the elevator car 10 has a control mechanism 11 provided for control the action of the brakes 12 and 13 shown here schematically in the form simple corners.
  • the brakes 12 and 13 generally act on the rails 30 of the elevator car 10.
  • These brakes 12 and 13 are also known in the field of the technique under the name of "parachute clip". They act one in a sense of movement of the cabin 10, the other in the other direction.
  • the automatic braking system includes a stop pulley 50 which is mounted on the masonry in the upper part of the elevator shaft and a cable endless 60 wound between the stop pulley 50 and a return pulley 51.
  • the cable without end 60 is tensioned by means of a tension mass 52 urging the return pulley 51.
  • a control mechanism 53 is, on the one hand, fixed on the endless cable 60 and, on the other hand, on the cabin 53. In normal operation, that is to say when the speed movement of cabin 10 is less than a speed limit, cabin 10 drives the cable 60. The mechanism 53 is not stressed and therefore does not act on the control mechanism 11 for brakes 12 and 13.
  • the object of the present invention is to propose a braking system which does not not have the disadvantages of braking systems of the prior art, in particular those which have been exposed above, and which is consequently of a clutter reduced compared to those of the prior art and which is not mounted on the same piece of masonry as that on which the drive motor rests.
  • said mechanism stop device is mounted on said cabin, said stop mechanism or a part thereof being provided for, in response to movement of said cabin when said pulley stop is blocked, move relative to said cabin in one direction substantially parallel to the direction of said cabin. Said control mechanism then acts on said brakes when said stop mechanism or said part thereof moves relative to said cabin.
  • said stop pulley is driven by a control cable which hangs vertically in the elevator shaft and goes down its throat.
  • said mechanism stop comprises two pulleys, one of which is said stop pulley, said cable control having its upper vertical strand passing through the lower part of a first groove of one of said pulleys, then passing into the groove of the second pulley then ironing in the upper part of the second groove of said first pulley.
  • Said first pulley can then constitute the part of the stop mechanism which, in reaction to the movement of said cabin when said stop pulley is blocked, moves relative to said cabin.
  • said mechanism stop comprises at least two pulleys, one of which is said stop pulley, said cable control passing through each of said grooves of said pulleys.
  • Said upstream pulley and said downstream pulley constitute the part of the mechanism which, in reaction to the movement of said cabin when said stop pulley is blocked, moves relative to said cabin.
  • said stop mechanism or said part of said stop mechanism are mounted at the end of a pivoting arm, said arm moving away from its rest position stressing the control mechanism which then acts on said brakes.
  • said stop mechanism or said part of said stop mechanism are mounted on slides extending substantially in the direction of movement of said cabin, said slide in deviating from its rest position stressing the control mechanism which then acts on said brakes.
  • said stop mechanism or said part of said stop mechanism are provided with a retractable rod which can, when it is not retractable, come into contact with stops provided in said elevator shaft, which has the effect of displacing said stop mechanism or said part of said stop mechanism in relation to said cabin and to request said control mechanism which then acts on said brakes.
  • the elevator installation shown in FIG. 2 is essentially constituted an elevator car 10 which is moved between the different floors of a shaft elevator (not shown), for example by means of machinery 20 acting on a traction cable or a bundle of cables 21 and comprising a counterweight 22.
  • This machinery 20 is for example mounted on the masonry constituting the part upper part of the elevator car.
  • the elevator car 10 is guided in its movement by guides side extending vertically in the elevator shaft. For the sake of clarity, we have shown only one of these rails 30.
  • the elevator car 10 has a control mechanism 11 (shown schematically by a simple dotted line) provided for controlling the action of the brakes 12 and 13 shown schematically in FIG. 2 in the form of corners.
  • Brakes 12 and 13 act on the guides of the elevator car 10.
  • These brakes 12 and 13 are also known in the technical field under the name of "parachute clamp". They act one in one direction of movement of the cabin 10, the other in the other direction.
  • the elevator car 10 includes a stop mechanism 40 here consisting of a stop pulley 41 and a return pulley 42.
  • the stop pulley 41 is of the type which rotates freely as long as its rotational speed does not exceed a threshold speed, and which freezes when its speed of rotation exceeds said threshold speed of rotation.
  • the system 40 is mounted under the cabin 10, for example on the chassis thereof. But we will understand, in particular thereafter, that it could be mounted, for example on the same chassis, in the upper part of the cabin 10, or elsewhere when it is integral with the cabin 10.
  • a control cable 60 which extends vertically in the elevator shaft in which operates said elevator car 10, passes in the lower part of a first groove of the return pulley 42, then passes into the groove of the stop pulley 41 in order to be able to drive it in rotation at the same time as the cabin 10 moves in the elevator shaft, and finally, in the upper part of a second groove of the return pulley 42.
  • Its lower end includes a tensioning system such that a mass 61 (or a spring or other), while its upper end is connected to the sheath ceiling by means of an elastic system 62.
  • the mass of tension 61 and elastic system 62 are provided to ensure the tension of the cable order 60
  • the idler pulley 42 is free rotationally mounted at the free end of an arm 43 intended to pivot around a pivot axis 44.
  • the stop pulleys 41 and return 42 have axes of rotation mutually parallel and parallel to the pivot axis 44 of the arm 43.
  • the arm 43 acts on the control mechanism 11 in the following manner.
  • the control mechanism 11 When the arm 43 is in a substantially horizontal position, called the position of rest, like that shown in FIG. 2, the control mechanism 11 is not used and the brakes 12 and 13 are inactive. However, when he takes a tilted position, called working position, in one direction or another, the mechanism 11 is acted upon, which has the effect of activating the brakes 12 and 13, thereby stopping the cabin 10 on its rails 30.
  • the arm 43 can be constrained in this rest position, by example by means of elastic elements, such as springs (not shown).
  • the speed of rotation of the stop pulley 41 becomes greater than its threshold speed of rotation. Through therefore, it locks up, making it impossible to run the control cable 60 in the stop mechanism 40.
  • the return pulley 42 is then immobilized relative to the control cable 60 and relative to the sheath (near displacement cable 60 allowed by elastic means 62).
  • the arm 43 pivots around its axis of pivoting 44. This results in an action on the control mechanism 11, which has the effect of blocking the brakes 12 and 13 on the rails 30.
  • the elevator car 10 is then stopped.
  • the arm 43 constitutes means allowing the movement of the stop mechanism 40 or a part of it mechanism 40 in the direction of advancement of the cabin 10 when the cable control 60 is blocked by the stop pulley 41, and the cabin 10, by inertia, still exhibits movement.
  • the stop mechanism 40 could include a plurality of pulleys (at least two), one of which would be a stop pulley 41, and at least one other would be mounted so that it could move in the direction of advancement of the cabin, for example at the end of an arm such as the arm 43 ..
  • the return pulley 42 is a pulley with two grooves provided, on the one hand, to receive the upper vertical strand of cable 60 and return it to the stop pulley 41 and, on the other hand, to receive the strand coming from the stop pulley 41 and to return it as a lower vertical strand.
  • Fig. 4 an alternative embodiment is shown where the arm 43 shown in Figs. 1 and 2 is replaced by a slide 46 parallel to the direction of advance of the cabin 10 in which the axis of rotation 47 of the deflection pulley 42 can be move when the control cable 60 is blocked in the stop pulley 41.
  • the return pulley 42 is shown in its rest position in which the axis of rotation is substantially at the center of the slide 46. The mechanism 11 is stressed when axis 47 is no longer in its central rest position, but is discarded.
  • Fig. 5 is an alternative embodiment which comprises two pulleys 42a and 42b which are mounted to rotate freely at the ends of a slider 48 provided to be able to move in translation in a direction parallel to the direction of movement of the elevator car 10.
  • the slide 48 is mounted for this purpose in a slide 49 extending vertically in the direction of advancement of the cabin 10.
  • the slide 48 is here shown in its rest position.
  • stop pulley 41 could be put in place of a deflection pulley 42, 42a or 42b, and that it would then replaced by a deflection pulley.
  • FIG. 6 there is shown an elevator installation which is identical to that already shown in FIG. 2 and which additionally comprises a safety device 90.
  • This safety device 90 consists essentially of a rod 91 which is retractable under the action of a control device such as an electromagnet 92, which is mounted on the pivoting arm 43.
  • a control device such as an electromagnet 92
  • FIG. 6 the retractable position of the rod 91 is shown in strong lines, while its extended position is shown in dotted lines.
  • the rod 91 When the rod 91 is in the not retracted position, it can come into contact with one or more stops 93 which are provided in the elevator shaft. However, in retracted position, it cannot come into contact with these stops 93.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Braking Arrangements (AREA)
EP00925371A 1999-05-04 2000-05-03 Systeme de freinage automatique d'une cabine d'ascenseur Expired - Lifetime EP1175367B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9905890 1999-05-04
FR9905890A FR2793230B1 (fr) 1999-05-04 1999-05-04 Systeme de freinage automatique d'une cabine d'ascenseur
PCT/FR2000/001180 WO2000066475A1 (fr) 1999-05-04 2000-05-03 Systeme de freinage automatique d'une cabine d'ascenseur

Publications (2)

Publication Number Publication Date
EP1175367A1 EP1175367A1 (fr) 2002-01-30
EP1175367B1 true EP1175367B1 (fr) 2003-07-16

Family

ID=9545380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00925371A Expired - Lifetime EP1175367B1 (fr) 1999-05-04 2000-05-03 Systeme de freinage automatique d'une cabine d'ascenseur

Country Status (10)

Country Link
US (1) US6202795B1 (pt)
EP (1) EP1175367B1 (pt)
AT (1) ATE245120T1 (pt)
CZ (1) CZ295395B6 (pt)
DE (1) DE60003910T2 (pt)
ES (1) ES2199824T3 (pt)
FR (1) FR2793230B1 (pt)
PL (1) PL351430A1 (pt)
PT (1) PT1175367E (pt)
WO (1) WO2000066475A1 (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134030A (zh) * 2011-04-11 2011-07-27 博宇(无锡)科技有限公司 风力发电机组升降维护平台
CN105712148A (zh) * 2016-03-23 2016-06-29 安徽瑞格电梯服务股份有限公司 一种轿厢急停设备

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808517B1 (fr) * 2000-05-03 2002-08-16 Emile Kadoche Dispositif pour declencher le mecanisme de liberation du parachute d'une cabine d'ascenseur
FI117239B (fi) * 2001-12-27 2006-08-15 Kone Corp Hissin turvalaite
US7073632B2 (en) * 2003-05-27 2006-07-11 Invento Ag Safety system for restraining movement of elevator car when car doors are open
US7575099B2 (en) * 2003-10-07 2009-08-18 Otis Elevator Company Remotely resettable ropeless emergency stopping device for an elevator
ES2253981B1 (es) * 2004-05-10 2007-06-16 Orona, S. Coop. Cable y cinta para limitador de velocidad de ascensores y poleas asociadas.
JP5335903B2 (ja) * 2008-06-17 2013-11-06 オーチス エレベータ カンパニー 制御回路およびブレーキ制御回路
US8720262B2 (en) * 2011-03-09 2014-05-13 Inventio Ag Testing a speed limiting system of an elevator installation
DE102012111622A1 (de) * 2012-11-29 2014-06-05 Thyssenkrupp Elevator Ag Aufzuganlage für ein im Bau befindliches Gebäude
JPWO2016042611A1 (ja) * 2014-09-17 2017-04-27 三菱電機株式会社 エレベータの張り車装置
EP3130554B1 (en) * 2015-08-13 2021-11-24 KONE Corporation An elevator
CN108438017B (zh) * 2018-03-15 2019-04-05 永贵能源开发有限责任公司新田煤矿 一种煤矿运输地档装置
DE102019104339A1 (de) * 2019-02-20 2020-08-20 Thyssenkrupp Ag Auslösesystem für eine Fangvorrichtung, Aufzugsanlage und Verfahren zum Betreiben einer Aufzugsanlage
CN109748172B (zh) * 2019-03-08 2023-11-24 兰州交通大学 一种应用在垂直提升电梯上的防坠落装置
US11459207B2 (en) * 2020-06-25 2022-10-04 Otis Elevator Company Safety link with pulley
CN114436089B (zh) * 2020-11-06 2024-09-17 奥的斯电梯公司 限速器组件和电梯

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US601301A (en) * 1898-03-29 ihlder
US632651A (en) * 1899-07-11 1899-09-05 William R Weeks Automatic car safety device for electric elevators.
US1182240A (en) * 1909-11-13 1916-05-09 Otis Elevator Co Safety device for elevators.
US2511697A (en) * 1947-12-12 1950-06-13 William C Clift Elevator safety apparatus
US3908801A (en) * 1974-03-13 1975-09-30 Vertical Transport Company Vertical hoist assembly
US4662481A (en) * 1986-03-14 1987-05-05 Westinghouse Electric Corp. Elevator system
GB2212782B (en) * 1987-11-25 1991-01-30 Poon Otto L A lift
FR2624840B1 (fr) * 1987-12-18 1990-05-04 Marion Rene Dispositif ralentisseur de securite pour la cabine d'un ascenseur ou d'un monte-charge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134030A (zh) * 2011-04-11 2011-07-27 博宇(无锡)科技有限公司 风力发电机组升降维护平台
CN105712148A (zh) * 2016-03-23 2016-06-29 安徽瑞格电梯服务股份有限公司 一种轿厢急停设备
CN105712148B (zh) * 2016-03-23 2018-05-25 安徽瑞格电梯服务股份有限公司 一种轿厢急停设备

Also Published As

Publication number Publication date
ES2199824T3 (es) 2004-03-01
CZ295395B6 (cs) 2005-07-13
PT1175367E (pt) 2003-10-31
CZ20013905A3 (cs) 2003-04-16
EP1175367A1 (fr) 2002-01-30
US6202795B1 (en) 2001-03-20
FR2793230B1 (fr) 2001-07-06
DE60003910T2 (de) 2004-05-27
FR2793230A1 (fr) 2000-11-10
PL351430A1 (en) 2003-04-22
ATE245120T1 (de) 2003-08-15
WO2000066475A1 (fr) 2000-11-09
DE60003910D1 (de) 2003-08-21

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