EP1048602A1 - Dispositif parachute, notamment pour ascenseur et ascenseur ainsi équipé - Google Patents
Dispositif parachute, notamment pour ascenseur et ascenseur ainsi équipé Download PDFInfo
- Publication number
- EP1048602A1 EP1048602A1 EP00401145A EP00401145A EP1048602A1 EP 1048602 A1 EP1048602 A1 EP 1048602A1 EP 00401145 A EP00401145 A EP 00401145A EP 00401145 A EP00401145 A EP 00401145A EP 1048602 A1 EP1048602 A1 EP 1048602A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blocking
- cabin
- cams
- cam
- guide rail
- 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
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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
- B66B5/16—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
- B66B5/20—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 by means of rotatable eccentrically-mounted members
Definitions
- the invention relates to a parachute device, in particular for elevator and elevator thus equipped, and in particular a device parachute for elevator cabin operational in the direction of descent and direction of ascent of the elevator car.
- the classic elevator parachute devices used to date, operational in this direction only, include a upper stop trigger, fixed to the cabin sheath, and a blocking device called parachute of the cabin, integral with the latter.
- the trip device is connected to the cab locking device at the by means of a cable, which is freely driven by the cabin in normal operation of the elevator and is stopped as soon as detection by the trigger of a dangerous abnormal movement from the elevator.
- the cab locking device has a locking roller connected to said trigger cable and suitable for coming into locking against the car guide rail and against an inclined blade fixed, under the upward stress of the trigger cable put stopped when motion trigger is detected abnormal dangerous from the elevator.
- the invention aims to overcome the above drawbacks and offers a parachute device, in particular for an elevator, which has at least one passenger cabin, at least one guide rail movement of the cabin, a stop trigger controlling the parachute device, a counterweight and a cab drive device, characterized in that it includes at least one jaw blocking the movement of the cabin, arranged integral with the cabin or the counterweight on a rail cab guide or counterweight, respectively, this jaw being further provided with a support pad and at least a locking cam, arranged on either side of said guide rail, said cam being mounted eccentrically articulated on a beam with elasticity effect integral with the jaw and controlled in rotation by the stop trigger so that normal operation it is kept out of grip of said rail guide and in abnormal safety operation activating the trigger, it is entrained in jamming on the rail guide to stop the cabin, the cabin training being simultaneously stopped by the tilting command in cam lock.
- said blocking cam does not act in jamming only in one direction of travel and to get the locking the movement of the cab in two high directions and low, two articulated, eccentric locking cams must be provided in opposition to the beam of the jaw piece.
- Only one of these cams can be ordered in blocking mode. depending on the direction of movement of the cabin or both together, one blocking and the other sliding on the guide rail.
- the locking jaw has relative to the two opposite locking cams and the shoe supporting a transverse median plane of symmetry, the shoe extending further longitudinally beyond the transverse projection cam jamming points, this to avoid setting jaw crab when one of the cams is blocked.
- the locking cams advantageously have a circular profile pebble-shaped.
- the cam profile can be variable, for example of the type spiral, so as to allow a blocking attack on the rail guide at a constant angle, regardless of the thickness of the rail guide, and therefore to obtain a progressivity of the repetitive stop and optimally adjustable according to the angle of attack and the flexibility of the support beam.
- the control of the blocking cam (s) by the element trigger can be conventional, of the mechanical cable type traction connected to a rotary lever of said cam or cams, turning this or these or one of these assigned to a direction of movement of the cabin, stuck on the rail guide as soon as the trigger activated by detection is commanded a safety anomaly in the operation of the elevator.
- the order of the opposing cam (s) can still be electric, without requiring a control cable from the release from the elevator shaft, the cams being, by example, mounted recalled in jamming on the guide rail and kept apart out of grip of the guide rail by a system of electro-magnetic type locking / unlocking, releasing the cams in the event of a security anomaly detected by the trigger.
- the support pad must be chosen in thickness in depending on the width or thickness of the guide rail so as to adjust in a substantially centered way (the small) clearances of the skate and the or cams with the guide rail, respectively, so as not to stress transversely or as little as possible the guide slides cabin or counterweight.
- the jaw body can be machined in one single piece of steel with the support beam of the cam (s), this beam further being machined to sections of variable thicknesses function of the (optimal) flexibility to obtain for each of the cam support sections and for each direction.
- the jaw (s) of the parachute device can be mounted floating transversely on their support with self-centering blocking for any purpose not to solicit transversely the guide slides.
- the invention also relates to an elevator equipped with a parachute device as defined above.
- these jaws 1 are arranged on the cab symmetrically from each other relative to a median plane thereof. They are arranged to classic way on the lower fixing legs car guide slides but they can be mounted anywhere else in the cabin. Furthermore and according to the size and load of the cabin, we can have several locking jaws on the same guide rail.
- the parachute device can also be mounted on the counterweight of the cabin, on each of its guide rails, likewise than on the cabin.
- the two lateral locking jaws 1 of the cabin are synchronously controlled locked on their guide 3 by a control member 5.
- This member 5 is activated by a trigger conventional stop not shown, fixed in the displacement sheath from the cabin. The latter detects any security anomaly in the elevator operation (overspeed of car, breakage a cable, erratic movement thereof, etc.) and control immediately blocking the cabin.
- the set of jaws of cab lock and their control unit constitutes the parachute device of the the elevator concerned.
- These locking jaws identical and generally shaped caliper, comprise a body 7 of steel machined in one piece. They are each provided internally with a support pad 9 and two locking rollers 11, 11 'of the same diameter, the shoe and the rollers being arranged on either side of the guide rail 3, respectively.
- the pad 9 of rectangular parallelepiped configuration extends a short distance at rest along the guide rail 3 and over a length greater than the transverse projection of the points of blocking of the rollers 11, 11 'on the guide rail 3.
- the blocking rollers 11, 11 ′ are eccentrically articulated each on a respective rear support beam element 13, 13 '. At rest, they are kept with little play of the guide rail 3 and in service they are turned so that their circumference comes touch the guide rail (figure 2) with rotation lock against this one due to the offset.
- the rollers 11, 11 ' are mounted in opposition in such a way that the upper roller 11 acts in locking in the direction of descent of the cabin and the lower roller 11 'in the direction of elevation of the cabin.
- a rotation stop maximum blocking (not shown) can be provided for each of the rollers.
- the beam elements 13, 13 ′ roller supports are machined at different thicknesses, greater for the upper element 13 only for the lower element 13 ', this because the efforts of blocking at descent are more important than the efforts at lifting. These thicknesses are adjusted to ensure progressiveness adequate cab lockout due to flexibility corresponding to the beam element.
- These beam elements 13, 13 ′ are part of the machined body of the jaw.
- the control member 5 of the locking rollers includes two levers mounted rotary 15 and 15 'integral each of a roller, respectively 11 and 11 ', a spring 17 connecting the outer ferromagnetic end 19, 19 ′ of the levers and recalling the rollers locked against guide rail 3 and two electromagnet coils 21, 21 'for locking / unlocking the levers.
- This control member is connected to the trip device which supplies normal service the coils 21, 21 'for magnetic holding levers and which stops supplying them as soon as it is activated by security anomaly detection.
- a contact respectively 23, 23 ' belonging to the cabin drive motor circuit.
- These two contacts 23, 23 ' which can be put in series on the circuit are closed in normal service, this by a flange conductor mounted isolated from the end of the levers, applied against the corresponding flange of the coil.
- the contacts 23, 23 'of the drive circuit therefore open as soon as the ends of the levers 19, 19 ′ leave the flanges of coil, thus providing additional security in stopping the cab drive, in addition to the own stop command of training by the trigger.
- the blocking thus takes place regardless of the direction drive the cabin, by the upper roller blocked at the lowering and the lower roller blocked on ascent, the other roller not acting in blocking but sliding on the guide rail.
- the safety reset of the parachute is carried out in bringing the ends of the levers against the coils after their recharging achieved by resetting the release.
- an ellipse shape of the cam with the axis of the ellipse substantially parallel to the guide rail in position when the device is out of service, it ensures a low angle of attack (engaging shape) and increase gradually the braking attack angle, which allows improve braking progressiveness with advantage over parts mechanical.
- the angle of attack is limited by a rotation stop of the cam at the maximum angle, which prevents a possible passage to the beyond the maximum angle point and cessation of braking.
- Progressive braking is also ensured by the bending capacity of the support beams, which are adjusted in resistance for each of the upper and lower cams, respectively, to the different loads to be supported by climb and down the cabin.
- the one-piece structure of the jaw gives this a significant mechanical rigidity, able to absorb the bending of the support beams of the cams.
Abstract
Description
- la figure 1 est une vue schématique d'un dispositif parachute conforme à l'invention, en service normal ; et
- la figure 2 est une vue de ce dispositif à l'état bloqué.
Claims (12)
- Dispositif parachute, notamment pour ascenseur, lequel comporte au moins une cabine de passagers, au moins un rail guide (3) de déplacement de la cabine, un élément déclencheur d'arrêt commandant le dispositif parachute, un contrepoids et un dispositif d'entraínement de la cabine, caractérisé en ce qu'il comprend au moins une mâchoire de blocage (1) du mouvement de la cabine, disposée solidaire de la cabine ou du contrepoids sur un rail guide (3) de la cabine ou du contrepoids, respectivement, cette mâchoire (1) étant en outre pourvue d'un patin d'appui (9) et au moins d'une came de blocage (11, 11'), lesquels sont disposés de part et d'autre dudit rail guide (3), ladite came (11, 11') étant montée articulée excentrée sur une poutre (13, 13') à effet d'élasticité solidaire de la mâchoire (1) et commandée en rotation par l'élément déclencheur d'arrêt de telle sorte qu'en fonctionnement normal elle soit maintenue hors de prise dudit rail guide (3) et qu'en fonctionnement anormal de sécurité activant le déclencheur, elle soit entraínée en prise de coincement sur le rail guide (3) en vue de stopper la cabine, l'entraínement de la cabine étant simultanément mis en arrêt par la commande de basculement en blocage de la came (11, 11'), le dispositif comportant en outre pour obtenir le verrouillage du déplacement de la cabine dans les deux sens haut et bas, au moins deux cames (11, 11') de blocage, articulées excentrées en opposition chacune sur un élément de poutre (13, 13') de la pièce de mâchoire (1), chacune des cames étant supportée par un élément de poutre respectif (13, 13') de flexibilité ajustée à l'effort du blocage de manière à obtenir une progressivité du blocage du mouvement réglée optimale pour chaque sens.
- Dispositif parachute selon la revendication 1, caractérisé en ce que le corps (7) de la mâchoire est usiné en une seule pièce avec la poutre support (13, 13') de la ou de chacune des cames, cette poutre étant en outre usinée à une ou des sections d'épaisseurs variables fonction de la flexibilité à obtenir pour chacune des sections support de cames supportées (11, 11'), la flexibilité de la poutre étant ajustée à l'effort du blocage de manière à obtenir une progressivité du blocage du mouvement réglée optimale pour chaque sens.
- Dispositif parachute selon l'une des revendications 1, 2, caractérisé en ce que ledit patin d'appui (9) s'étend longitudinalement au-delà de la projection transversale des points de coincement des cames (11, 11'), ceci pour éviter une mise en crabe de la mâchoire au blocage d'une des cames.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce que le profil des cames de blocage (11, 11') est variable et par exemple de type spirale de manière à permettre une attaque de blocage sur le rail guide (3) selon un angle constant, quelle que soit l'épaisseur du rail guide, et donc d'obtenir une progressivité de l'arrêt répétitive et réglable de façon optimale en fonction de la flexibilité de la poutre et de l'angle d'attaque.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce que la ou les cames (11, 11') ont un profil circulaire à forme de galet.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce que la commande de la ou des cames de blocage (11, 11') par l'élément déclencheur est classique, du type mécanique à câble de traction relié à un levier rotatif de ladite ou desdites cames, tournant cette ou ces dernières en coincement sur le rail guide, en cas d'anomalie de sécurité détectée par le déclencheur.
- Dispositif parachute selon l'une des revendications 1-5, caractérisé en ce que la commande de la ou des cames de blocage (11, 11') est électrique, sans nécessiter un câble de commande du déclencheur depuis la gaine d'ascenseur, les cames étant, par exemple, montées rappelées (17) en coincement sur le guide (3) et maintenues écartées hors de prise du guide par un système de blocage/déblocage de une position (19, 21 ; 19', 21') de type électromagnétique, libérant celles-ci en cas d'anomalie de sécurité détectée par le déclencheur.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce que le patin d'appui (9) est choisi en épaisseur en fonction de l'épaisseur du rail guide (3) de façon à ajuster de façon sensiblement centrée les jeux (faibles) du patin (9) et de la ou des cames (11, 11') avec le guide (3), respectivement, ceci pour ne pas solliciter transversalement ou le moins possible les coulisseaux de guidage de cabine ou de contrepoids.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce que la mâchoire de blocage (1) est montée flottante transversalement sur son support avec auto-centrage du blocage à toute fin de ne pas solliciter transversalement les coulisseaux de guidage.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce que la forme des cames est en ellipse, avec l'axe de l'ellipse sensiblement parallèle au rail guide en position hors service du dispositif, permettant d'assurer au déclenchement un angle d'attaque faible et d'augmenter progressivement l'angle d'attaque du freinage, ce qui permet d'améliorer la progressivité du freinage avec avantage sur les pièces mécaniques.
- Dispositif parachute selon l'une des revendications précédentes, caractérisé en ce qu'une butée de rotation maximale est prévue pour chacune des cames.
- Ascenseur équipé d'un dispositif parachute selon l'une des revendications précédentes, caractérisé en ce qu'il comporte au moins une mâchoire de blocage (1) sur un rail guide (3) de cabine ou de contrepoids, de type comportant au moins deux éléments excentriques opposés (11, 11') de blocage commandés en blocage par le déclencheur d'arrêt d'anomalie de sécurité, avec coupure (23, 23') de l'entraínement au blocage, les éléments excentriques étant supportés par des éléments poutre de flexibilité ajustée à l'effort de charge de blocage du mouvement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9905457 | 1999-04-29 | ||
FR9905457A FR2792923B1 (fr) | 1999-04-29 | 1999-04-29 | Dispositif parachute, notamment pour ascenseur et ascenseur ainsi equipe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1048602A1 true EP1048602A1 (fr) | 2000-11-02 |
EP1048602B1 EP1048602B1 (fr) | 2004-08-11 |
Family
ID=9545034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00401145A Expired - Lifetime EP1048602B1 (fr) | 1999-04-29 | 2000-04-26 | Dispositif parachute, notamment pour ascenseur et ascenseur ainsi équipé |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1048602B1 (fr) |
AT (1) | ATE273232T1 (fr) |
DE (1) | DE60012811D1 (fr) |
FR (1) | FR2792923B1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2818259A1 (fr) * | 2000-12-18 | 2002-06-21 | Materiel Ind Et D Equipement S | Cabine ascensionnelle de grue |
WO2014082877A1 (fr) * | 2012-11-27 | 2014-06-05 | Inventio Ag | Mécanisme de sécurité pour un corps mobile d'un système d'ascenseur |
CN105438916A (zh) * | 2015-12-28 | 2016-03-30 | 西南交通大学 | 机械式自动解锁电梯安全钳 |
WO2021069760A1 (fr) | 2019-10-07 | 2021-04-15 | Dynatech, Dynamics & Technology, S.L. | Actionnement électromécanique par transmission flexible pour l'activation des parachutes d'ascenseur |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11413987B2 (en) * | 2019-09-03 | 2022-08-16 | The Boeing Company | Electromagnetic seat attachment and seat power |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE805782C (de) * | 1949-05-27 | 1951-05-31 | Gustav Hahn Dipl Ing | Bremsfangvorrichtung fuer Aufzuege |
FR1278304A (fr) * | 1960-12-23 | 1961-12-08 | Organe de prise de parachute à prise amortie pour appareils élévateurs | |
US5234079A (en) * | 1990-11-06 | 1993-08-10 | Mitsubishi Denki Kabushiki Kaisha | Ropeless linear motor elevator system |
DE29619729U1 (de) * | 1996-11-13 | 1998-03-19 | Haushahn C Gmbh Co | Fangvorrichtung |
-
1999
- 1999-04-29 FR FR9905457A patent/FR2792923B1/fr not_active Expired - Lifetime
-
2000
- 2000-04-26 EP EP00401145A patent/EP1048602B1/fr not_active Expired - Lifetime
- 2000-04-26 DE DE60012811T patent/DE60012811D1/de not_active Expired - Lifetime
- 2000-04-26 AT AT00401145T patent/ATE273232T1/de not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE805782C (de) * | 1949-05-27 | 1951-05-31 | Gustav Hahn Dipl Ing | Bremsfangvorrichtung fuer Aufzuege |
FR1278304A (fr) * | 1960-12-23 | 1961-12-08 | Organe de prise de parachute à prise amortie pour appareils élévateurs | |
US5234079A (en) * | 1990-11-06 | 1993-08-10 | Mitsubishi Denki Kabushiki Kaisha | Ropeless linear motor elevator system |
DE29619729U1 (de) * | 1996-11-13 | 1998-03-19 | Haushahn C Gmbh Co | Fangvorrichtung |
Non-Patent Citations (1)
Title |
---|
KABISCH G ET AL: "DIE FANGBREMSE BF X3 AUS DEM OSTDEUTSCHEN AUFZUGSBAU", LIFT-REPORT, vol. 17, no. 5, September 1991 (1991-09-01), pages 38 - 41, XP002047395 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2818259A1 (fr) * | 2000-12-18 | 2002-06-21 | Materiel Ind Et D Equipement S | Cabine ascensionnelle de grue |
AU2013351429B2 (en) * | 2012-11-27 | 2017-01-19 | Inventio Ag | Safety catch for a traveling body of an elevator system |
WO2014082878A1 (fr) * | 2012-11-27 | 2014-06-05 | Inventio Ag | Mécanisme de sécurité pour un corps mobile d'un système d'ascenseur |
KR20150089070A (ko) * | 2012-11-27 | 2015-08-04 | 인벤티오 아게 | 엘리베이터 시스템의 운행 보디용의 안전 장치 |
CN104936882A (zh) * | 2012-11-27 | 2015-09-23 | 因温特奥股份公司 | 用于电梯设备的行驶体的防坠装置 |
WO2014082877A1 (fr) * | 2012-11-27 | 2014-06-05 | Inventio Ag | Mécanisme de sécurité pour un corps mobile d'un système d'ascenseur |
CN104936882B (zh) * | 2012-11-27 | 2017-02-22 | 因温特奥股份公司 | 用于电梯设备的行驶体的防坠装置 |
US9663326B2 (en) | 2012-11-27 | 2017-05-30 | Inventio Ag | Brake device for a travel body of an elevator system |
US9708159B2 (en) | 2012-11-27 | 2017-07-18 | Inventio Ag | Safety brake for a travel body of an elevator system |
RU2643078C2 (ru) * | 2012-11-27 | 2018-01-30 | Инвенцио Аг | Ловитель для транспортного объекта лифта |
KR102113895B1 (ko) | 2012-11-27 | 2020-05-22 | 인벤티오 아게 | 엘리베이터 시스템의 운행 보디용의 안전 장치 |
CN105438916A (zh) * | 2015-12-28 | 2016-03-30 | 西南交通大学 | 机械式自动解锁电梯安全钳 |
WO2021069760A1 (fr) | 2019-10-07 | 2021-04-15 | Dynatech, Dynamics & Technology, S.L. | Actionnement électromécanique par transmission flexible pour l'activation des parachutes d'ascenseur |
CN114502496A (zh) * | 2019-10-07 | 2022-05-13 | 戴纳泰克动力与科技有限公司 | 用于致动电梯安全装置的柔性传动机电驱动器 |
Also Published As
Publication number | Publication date |
---|---|
FR2792923B1 (fr) | 2001-07-13 |
ATE273232T1 (de) | 2004-08-15 |
EP1048602B1 (fr) | 2004-08-11 |
FR2792923A1 (fr) | 2000-11-03 |
DE60012811D1 (de) | 2004-09-16 |
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