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EP2836453B1 - Dispositif de surveillance d'une installation d'élévation - Google Patents

Dispositif de surveillance d'une installation d'élévation Download PDF

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Publication number
EP2836453B1
EP2836453B1 EP13714925.8A EP13714925A EP2836453B1 EP 2836453 B1 EP2836453 B1 EP 2836453B1 EP 13714925 A EP13714925 A EP 13714925A EP 2836453 B1 EP2836453 B1 EP 2836453B1
Authority
EP
European Patent Office
Prior art keywords
shaft
lift
shaft door
circuit
safety
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
EP13714925.8A
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German (de)
English (en)
Other versions
EP2836453A1 (fr
Inventor
Philippe Henneau
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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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP13714925.8A priority Critical patent/EP2836453B1/fr
Publication of EP2836453A1 publication Critical patent/EP2836453A1/fr
Application granted granted Critical
Publication of EP2836453B1 publication Critical patent/EP2836453B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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

Definitions

  • the invention relates to an elevator installation with a monitoring device which is suitable for monitoring shaft doors and for monitoring the elevator shaft.
  • Known elevator systems arranged in buildings comprise an elevator shaft in which an elevator cage is movably arranged. Individual floors of the building have openings to this elevator shaft, which are arranged along individual positions of the movable elevator car. These openings can be closed by shaft doors. In an arrangement of the elevator car at one of these shaft doors, the elevator car can be entered through this shaft door. With an opening of each other shaft door, the elevator shaft is freely accessible at this time. To protect persons from injuries in the elevator shaft, the shaft doors are integrated in a safety circuit. This safety circuit has the effect that, when the shaft door is unlocked or opened, the elevator car can not be moved in the elevator shaft. In subsequently locked or closed shaft doors, the elevator car can be moved in the elevator shaft according to the function of this safety circuit. Nevertheless, persons may be in the elevator shaft, in particular in its shaft pit.
  • US 7,954,606 shows an elevator safety system with a sensor for detecting a person present in the elevator shaft.
  • the sensor can be arranged on the elevator car or in the shaft pit.
  • the problem with such a solution is that for such a security system, an additional costly sensor must be placed in the elevator shaft.
  • EP 1 454 866 A2 discloses an elevator installation according to the preamble of claim 1 and a method according to the preamble of claim 10.
  • the object of the invention is therefore to equip an elevator installation with an improved monitoring device.
  • an elevator installation with a monitoring device for monitoring shaft doors
  • the elevator installation has an elevator car which can be moved in an elevator shaft, with a shaft door contact switch which is attached to one of the shaft doors is arranged, and a safety-relevant circuit, preferably a safety circuit which monitors a position of the shaft doors by means of the shaft door contact switch, characterized in that the elevator system additionally comprises a monitoring circuit independent of the safety-relevant circuit for monitoring the elevator shaft, wherein the elevator system by the Monitoring circuit is set into a safety mode when the shaft door contact switch is open and the elevator car is not located at the level of the shaft door.
  • the object is also achieved by a method for operating an elevator installation with a monitoring device, the elevator installation having an elevator car movable in a lift cage and shaft doors, wherein a shaft door contact switch, which is arranged on one of the shaft doors of the elevator system is opened, and a safety-related circuit is influenced based on the detected opening of the shaft door contact switch, and additionally influenced by the safety-relevant circuit monitoring circuit based on the detected opening of the shaft door contact switch, the elevator system is set by the monitoring circuit in a safety mode when the shaft door contact switch is open and the elevator car not is arranged at the level of the shaft door.
  • persons who are or have entered the elevator shaft are to be understood as persons who are outside the interior of the elevator cage in the elevator shaft.
  • a person can enter the elevator shaft exclusively through one of the open shaft doors.
  • this person may be a service technician or any other person who can open this landing door by means of a tool.
  • a safety-related circuit that the elevator car can not be moved. Unnoticed by the person located in the elevator shaft, however, it is possible that the shaft door closes again or locked, since such a shaft door is usually self-closing or -verriegelnd. This is the case in particular when the service technician works in the elevator shaft.
  • the safety-relevant circuit causes a continuation in this case a normal operation of the elevator car, which may pose a danger to the person located in the elevator shaft.
  • a shaft door contact switch is arranged on the monitored shaft door, by means of which the opening or unlocking of the shaft door is detected.
  • the invention is based on the finding that, in addition to being used in the safety-relevant circuit, this shaft door contact switch can be used in such a way that the person who has penetrated into the elevator shaft is protected.
  • an independent monitoring circuit is connected to the shaft door contact switch in addition to the safety-relevant circuit, by means of which the elevator system can be placed in a safety mode, if the interior of the elevator car is not arranged on the open monitored shaft door.
  • this safety mode remains beyond the time at which the shaft door contact switch is closed. In this way, despite reclosing or re-locking the shaft door, the person who has penetrated the elevator shaft is protected from injury.
  • a continuation of the normal operation is possible only by deactivating the safety mode after checking the elevator shaft.
  • a necessarily existing shaft door contact switch only need to be rewired and not be supplemented by a sensor on the shaft door, which can lead to problems such as space problems in a modernization of elevator systems, for example.
  • the safety mode can be designed in such a way that a travel path of the elevator car of the elevator installation which is in safety mode is limited relative to a travel path of the elevator cage of the elevator installation which is in normal operation.
  • the elevator car can no longer be moved in such a way that, when the safety mode is activated, it can be arranged on the uppermost and / or lowermost shaft door of the elevator installation. In this way, the person who has penetrated into the elevator shaft and who is located in the shaft pit or on the elevator car can not be endangered by the movement of the elevator cage and / or a counterweight.
  • the security mode be formed such that a traversing speed, which is used in the safety mode, compared to the normal operation of the elevator car is reduced.
  • the safety mode can be designed such that the safety mode causes a stop of the elevator car.
  • the shaft door contact switch is exclusively opened when the first shaft door is in the unlocked or open position. In this way it can be ensured that the elevator installation is not set to safety mode while the first landing door is still closed.
  • a development of the elevator system has a shaft door contact switch having control circuit, wherein the control circuit comprises a switchable by the shaft door contact switch element, preferably a contactor or relay, wherein a switching operation of the shaft door contact switch means of this switching element a switching operation in the safety-related circuit and a switching operation in the monitoring circuit causes.
  • the control circuit comprises a switchable by the shaft door contact switch element, preferably a contactor or relay, wherein a switching operation of the shaft door contact switch means of this switching element a switching operation in the safety-related circuit and a switching operation in the monitoring circuit causes.
  • a further development of the elevator installation comprises a signal transmitter arranged in the monitoring circuit and an emergency stop button arranged in the elevator shaft, the signal transmitter being arranged on the emergency stop button and the signal generator generating a signal in the safety mode triggered by the monitoring circuit, which signal is preferably audible or visual .
  • the emergency stop button, on which the signal generator is arranged can be arranged on a car roof or in the shaft pit. Thus, a person who is in the elevator shaft can be quickly made aware of the emergency stop button.
  • the shaft door is arranged on the shaft pit. In this way, the shaft pit of the elevator installation can be monitored, ie a person who is staying in the shaft pit of the elevator installation can be protected.
  • the monitoring circuit comprises a monitoring switch, wherein the monitoring switch is actuated during a switching operation of the shaft door contact switch and is bridged by means of a bridging contact in an arrangement of the elevator car at the level of the first shaft door.
  • the safety mode is triggered automatically. In this way, the person in the elevator shaft can be protected, without this must be active.
  • the shaft door contact switch of the shaft door arranged at a shaft door is monitored. In this way, a person can be protected who has entered the pit.
  • FIG. 1 shows an elevator system 22 with a safety-related circuit 8.
  • the elevator system 22 has an elevator shaft 24 with shaft doors 4a, 4b, 4c and an elevator car 24 movable in the elevator car 26.
  • the elevator car 26 has a car roof 31.
  • the elevator car 26 is arranged on a shaft door 4 c which is the uppermost in the elevator shaft 24.
  • the safety-relevant circuit 8 is preferably a safety circuit 8 'and may be part of a monitoring device.
  • the elevator shaft 24 comprises a shaft pit 28.
  • a shaft door contact switch 6a, 6b, 6c is arranged, which influence the safety-relevant circuit 8.
  • the safety-relevant circuit 8 is connected to a lift control 30 of the elevator installation 22.
  • An opening or unlocking one of Shaft doors 4a, 4b, 4c open the associated shaft door contact switch 6a, 6b, 6c and influence the elevator control 30 such that the elevator car 26 can not be moved during the opening of the shaft door contact switch 6a, 6b, 6c in a normal operation.
  • FIG. 2 and 4 show a simplified circuit diagram of a monitoring device 2 for an elevator system for monitoring shaft doors.
  • a shaft door contact switch 6a, 6b, 6c is arranged at each of the shaft doors.
  • the monitoring device 2 is exemplified in the elevator system 22 according to FIG. 1 arranged.
  • the circuit diagram is shown in a de-energized state.
  • the monitoring device 2 comprises a control circuit 12, a safety-relevant circuit 8 and a monitoring circuit 10.
  • the circuit diagram also shows an elevator control 30.
  • the safety-relevant circuit 8 is connected to the elevator control 30.
  • a first of the shaft door contact switch 6a is arranged on a first of the shaft doors 4a and forms part of the control circuit 12.
  • a switching element 14 is additionally arranged.
  • the switching element 14 is an example of a contactor or a relay. Each further shaft door contact switch 6b, 6c is arranged in the safety-relevant circuit 8.
  • the first shaft door contact switch 6a influences, in addition to the safety-relevant circuit 8, the monitoring circuit 10.
  • the safety-relevant circuit 8 comprises a safety switch 14.1.
  • the monitoring circuit 10 comprises a monitoring switch 14.2 and a bridging contact 44.
  • An opening of the first shaft door contact switch 6a in the control circuit 12 at an opening or unlocking the first shaft door leads according to the function of the switching element 14 to the fact that the monitoring switch 14.2 in the monitoring circuit 10 and the Safety switch 14.1 are connected in the safety-related circuit 8.
  • the circuit of the monitoring switch 14.2 causes at the opening of the first shaft door contact switch 6a that the elevator system 22 can be placed in a safety mode when the according FIG. 1 described elevator car is not arranged on the first shaft door.
  • An opening of the first shaft door contact switch 6a thus influences the safety-relevant circuit 8 by means of the switching element 14 such that a safety switch 14.1 arranged in the safety-relevant circuit 8 performs the switching operations of the first shaft door contact switch 6a as equally as if the first shaft door contact switch were 6a arranged within the safety-related circuit 8.
  • the monitoring switch 14.2 is bridged by means of the bridging contact 44.
  • a bridging element 45 is arranged on the elevator car, which closes the bridging contact 44 when the elevator car is arranged on the first shaft door 4a.
  • the bridging element 45 and / or the bridging contact 44 can be designed so that the monitoring switch 14.2 is also bridged when the shaft door contact switch 6a and thus the monitoring switch 14.2 is opened in the course of premature door opening of the shaft door 4a.
  • the elevator installation can be set to a safety mode.
  • FIG. 2 shows a first embodiment of the circuit diagram of the elevator installation with the monitoring device 2.
  • the monitoring device 2 includes an emergency stop circuit 60, which is connected to the elevator control 30.
  • an emergency stop button 18 is arranged in an elevator shaft of the elevator installation.
  • the monitoring circuit 10 of the monitoring device 2 includes a signal generator 16 and a switching element, for example a relay switch arrangement 50.1, 50.2.
  • the signal generator 16 may be arranged in the immediate vicinity of the emergency stop button 18 or on the emergency stop button 18 within the elevator shaft, wherein the emergency stop button 18 can be reached by a person entering the elevator shaft through the first landing door 4a.
  • the signal generator 16 When the monitoring switch 14.2 is opened and the monitoring switch 14.2 is not bridged, the signal generator 16 generates a signal, which is visual or audible by way of example.
  • the signal serves to make the person in the elevator shaft aware of the emergency stop button 18. In this way, made aware of the emergency stop button 18, the person is allowed to quickly press the emergency stop button 18 in an exemplary hazardous situation by the traveling cabin and thus to put the elevator system in the safety mode.
  • FIG. 4 shows a further embodiment of the circuit diagram of the elevator installation with the monitoring device 2.
  • the monitoring device 2 comprises an emergency stop circuit 60, which is connected to the elevator control 30.
  • the emergency stop circuit 60 has an emergency stop button 18 and an emergency stop switch 19.1.
  • the monitoring circuit 10 has a monitoring emergency switch 19.
  • the monitoring emergency switch 19 causes the emergency stop switch 19.1 to be actuated and the elevator installation to be set to safety mode. Accordingly, such actuation of the emergency stop switch 19.1 and actuation of the emergency stop button 18 by a person may affect the elevator control 30 in a similar manner. Accordingly, when the first shaft door 4a is opened or unlocked, the monitoring circuit 10 ensures that the elevator installation is automatically set to the safety mode if, at the same time, the elevator cage is not arranged on the shaft door of the elevator installation associated with the first shaft door contact switch 6a.
  • FIG. 3 shows the lower part of an elevator shaft 24 of the elevator installation, in particular a pit 28, with parts of a monitoring device 2.
  • a first shaft door 4a to be monitored which is arranged directly on the shaft pit 28, the shaft pit 28 through the shaft door arranged directly on it 4a can be entered.
  • a first shaft door contact switch 6a is arranged, which influences the safety-relevant circuit and the monitoring circuit of the monitoring device.
  • a bridging contact 44 of the monitoring device 2 is arranged so that a bridging element arranged on the elevator car (not shown) can bridge a monitoring switch, not shown, of the monitoring circuit.
  • a signal generator 16 is arranged at a arranged in the pit 28. Both the safety-related circuit and the emergency stop button 18 are connected to an elevator control. Remaining elements of the monitoring device 2 relating to the first landing door 4a can be arranged in a monitoring box 48.
  • a plurality of shaft doors of the elevator installation can also be integrated into a control circuit of a monitoring device according to the invention in order, for example, to protect a person located on the cabin roof of the elevator cage.
  • a monitoring circuit comprises a signal generator
  • an emergency stop button is to be arranged on the cabin roof or on the elevator car, so that it can be reached by the person to be protected.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)

Claims (13)

  1. Installation d'ascenseur (22) avec un dispositif de surveillance (2) pour surveiller des portes palières (4a, 4b, 4c), étant précisé que l'installation d'ascenseur (22) comporte une cabine d'ascenseur (26) apte à circuler dans une cage d'ascenseur (24), avec
    un contacteur de porte palière (6a) qui est disposé sur l'une des portes palières (4a), et
    un montage de sécurité (8), de préférence un circuit de sécurité (8'), qui surveille une position des portes palières (4a, 4b, 4c) à l'aide du contacteur de porte palière (6a),
    caractérisée en ce que l'installation d'ascenseur (22) comporte en supplément un montage de surveillance (10), indépendant du montage de sécurité (8), pour surveiller la cage d'ascenseur (24), étant précisé que l'installation d'ascenseur (22) est apte à être amenée par le montage de surveillance (10) dans un mode de sécurité si le contacteur de porte palière (6a) est ouvert et si la cabine d'ascenseur (26) ne se trouve pas à la hauteur de la porte palière (4a), caractérisée en ce que le mode de sécurité est conçu de manière à être constant en cas de fermeture du contacteur de porte palière (6a).
  2. Installation d'ascenseur selon la revendication 1, étant précisé que le mode de sécurité est conçu de telle sorte qu'une course de la cabine (26) de l'installation d'ascenseur (22) qui se trouve en mode de sécurité est limitée par rapport à une course de la cabine de l'installation d'ascenseur (22) qui se trouve en mode normal, ou le mode de sécurité provoque un arrêt de la cabine d'ascenseur (26).
  3. Installation d'ascenseur (22) selon l'une des revendications précédentes, étant précisé que le contacteur de porte palière (6a) est ouvert exclusivement lorsque la porte palière (4a) est en position déverrouillée ou ouverte.
  4. Installation d'ascenseur (22) selon l'une des revendications précédentes, avec un circuit de commande (12) qui comporte le contacteur de porte palière (6a), étant précisé que le circuit de commande (12) comporte un élément de commutation (14), de préférence un contacteur interrupteur ou un relais, apte à être commuté par le contacteur de porte palière (6a), étant précisé qu'une opération de commutation du contacteur de porte palière (6a) à l'aide de cet élément de commutation (14) provoque une opération de commutation dans le circuit de sécurité (8) et une opération de commutation dans le circuit de surveillance (10).
  5. Installation d'ascenseur (22) selon l'une des revendications précédentes, étant précisé que l'installation d'ascenseur (22) comprend un générateur de signaux (16) disposé dans le circuit de surveillance (10), et un bouton d'arrêt d'urgence (18) disposé dans la cage d'ascenseur, étant précisé que le générateur de signaux (16) est disposé sur le bouton d'arrêt d'urgence (18) et que ledit générateur de signaux (16), en mode de sécurité déclenché par le circuit de surveillance (10), génère un signal qui est de préférence acoustique ou visuel.
  6. Installation d'ascenseur (22) selon la revendication 5, étant précisé que le bouton d'arrêt d'urgence (18) est disposé dans une cuvette de cage (28).
  7. Installation d'ascenseur (22) selon l'une des revendications précédentes, étant précisé que la porte palière (4a) est disposée sur une/la cuvette de cage (28).
  8. Installation d'ascenseur (22) selon la revendication 5, étant précisé que le bouton d'arrêt d'urgence (18) est disposé sur un toit (31) de la cabine d'ascenseur (26).
  9. Installation d'ascenseur (22) selon l'une des revendications précédentes, étant précisé que le circuit de surveillance (10) comprend un commutateur de surveillance (14.2), et que le commutateur de surveillance (14.2) est actionné lors d'une opération de commutation du contacteur de porte palière (6a), et est court-circuité à l'aide d'un contact de court-circuit (44) quand la cabine d'ascenseur (26) est disposée à la hauteur de la porte palière (4a).
  10. Procédé pour faire fonctionner une installation d'ascenseur (22) avec un dispositif de surveillance (2), étant précisé que l'installation d'ascenseur (22) comporte une cabine d'ascenseur (26) apte à circuler dans une cage d'ascenseur (24), et des portes palières (4a, 4b, 4c), étant précisé :
    qu'un contacteur de porte palière (6a) qui est disposé sur l'une des portes palières (4a) de l'installation d'ascenseur (22) s'ouvre, et
    qu'un montage de sécurité (8, 8') est influencé sur la base de l'ouverture détectée du contacteur de porte palière (6a), et, en supplément,
    qu'un circuit de surveillance (10) indépendant du circuit de sécurité (8) est influencé sur la base de l'ouverture détectée du contacteur de porte palière (6a),
    étant précisé que l'installation d'ascenseur (22) est amenée par le montage de surveillance (10) dans un mode de sécurité si le contacteur de porte palière (6a) est ouvert et si la cabine d'ascenseur (26) ne se trouve pas à la hauteur de la porte palière (4a),
    caractérisé en ce que le mode de sécurité activé à l'aide du montage de surveillance (10) est conservé en cas de fermeture du contacteur de porte palière (6a).
  11. Procédé selon la revendication 10, étant précisé que le mode de sécurité est déclenché automatiquement.
  12. Procédé selon la revendication 10, étant précisé que grâce au montage de surveillance (10) est généré un signal de préférence acoustique ou visuel, étant précisé que le signal est apte à attirer l'attention d'une personne sur un bouton d'arrêt d'urgence (18) du dispositif de surveillance (2).
  13. Procédé selon l'une des revendications 10 à 12, étant précisé que le contacteur de porte palière (6a) de la porte palière (4a) disposée sur une cuvette de cage (28) est surveillé.
EP13714925.8A 2012-04-12 2013-04-08 Dispositif de surveillance d'une installation d'élévation Active EP2836453B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13714925.8A EP2836453B1 (fr) 2012-04-12 2013-04-08 Dispositif de surveillance d'une installation d'élévation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12163960 2012-04-12
EP13714925.8A EP2836453B1 (fr) 2012-04-12 2013-04-08 Dispositif de surveillance d'une installation d'élévation
PCT/EP2013/057330 WO2013153044A1 (fr) 2012-04-12 2013-04-08 Dispositif de surveillance d'une installation d'ascenseur

Publications (2)

Publication Number Publication Date
EP2836453A1 EP2836453A1 (fr) 2015-02-18
EP2836453B1 true EP2836453B1 (fr) 2016-03-09

Family

ID=48050718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13714925.8A Active EP2836453B1 (fr) 2012-04-12 2013-04-08 Dispositif de surveillance d'une installation d'élévation

Country Status (3)

Country Link
EP (1) EP2836453B1 (fr)
ES (1) ES2576118T3 (fr)
WO (1) WO2013153044A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108772A1 (de) * 2001-02-23 2002-11-21 Otis Elevator Co Aufzugssicherheitseinrichtung
DE10309655A1 (de) * 2003-03-06 2004-09-16 Aufzugswerke M. Schmitt & Sohn Gmbh & Co. Aufzuganlage
WO2004096690A1 (fr) * 2003-04-30 2004-11-11 Thyssenkrupp Elevator Ag Dispositif d'ascenseur et procede pour commander un dispositif d'ascenseur
US7353914B2 (en) * 2003-10-20 2008-04-08 Inventio Ag Safety system for an elevator
WO2007040538A1 (fr) 2005-10-05 2007-04-12 Otis Elevator Company Commande de systeme d'ascenseur reagissant a la detection de penetration dans la cage

Also Published As

Publication number Publication date
WO2013153044A1 (fr) 2013-10-17
ES2576118T3 (es) 2016-07-05
EP2836453A1 (fr) 2015-02-18

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