EP1490284B1 - Shaft monitoring system for an elevator - Google Patents

Shaft monitoring system for an elevator Download PDF

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Publication number
EP1490284B1
EP1490284B1 EP03744705A EP03744705A EP1490284B1 EP 1490284 B1 EP1490284 B1 EP 1490284B1 EP 03744705 A EP03744705 A EP 03744705A EP 03744705 A EP03744705 A EP 03744705A EP 1490284 B1 EP1490284 B1 EP 1490284B1
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EP
European Patent Office
Prior art keywords
shaft door
shaft
lift
door
sensor part
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
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EP03744705A
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German (de)
French (fr)
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EP1490284A1 (en
Inventor
Romeo Deplazes
Philipp Angst
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Inventio AG
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Inventio AG
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Priority to EP03744705A priority Critical patent/EP1490284B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
    • B66B13/125—Arrangements for effecting simultaneous opening or closing of cage and landing doors electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/22—Operation of door or gate contacts

Definitions

  • the invention relates to the monitoring of the shaft doors of an elevator system.
  • Elevator systems of conventional type such as DE 19963038, generally have landing doors with which the lift shaft can be separated from the adjoining rooms on each floor.
  • Many elevator systems also have cabin doors, with which the elevator car itself is lockable, and which move together with the cabin from floor to floor.
  • all shaft doors must always be closed during operation, with the exception of the shaft door of that floor in which the elevator car is just stopping.
  • the car doors must be closed when the elevator is not stopping on a floor to be loaded or unloaded or entered or left.
  • the manhole and / or cabin doors can also be opened when the elevator car is located elsewhere than in the above-described situations.
  • the state ie the position of the shaft doors or the position of bars with which the shaft door or latches can be locked in their closed position, are monitored by means of monitoring systems.
  • sensor means for example in the form of positively driven devices with safety contact points are provided.
  • the safety contact points are integrated in series in a safety circuit. The arrangement is designed so that the elevator car can only be moved when the safety circuit and thus all safety contacts integrated in it are closed.
  • Each safety circuit has inherent problems; These include the length of the connections, the voltage drop in the safety circuit and the relatively high assembly costs.
  • the individual safety contacts are relatively prone to failure; Therefore, it often comes to unnecessary emergency stops of the elevator system.
  • the safety contacts can be individually or jointly bridged relatively easily, which is practically equivalent to an override of the security arrangements;
  • an open shaft door prevents movement of the car, but if the car is not in the shaft door that is currently open, there is still the risk of falling through the open shaft door.
  • the monitoring system does not allow a specific diagnosis; This means that when the safety circuit is open it is only ascertained that at least one safety contact and thus at least one lock or at least one shaft door is open. However, it can not be determined which safety contact is open. Before a fault occurs in the safety circuit, the monitoring system does not provide any information which indicates the condition (wear, Corrosion) of individual safety contacts or allows their identification. Condition-dependent maintenance at a time when the elevator system can be easily shut down is therefore not supported.
  • each shaft door wing is provided with at least one electrical contact which must be integrated into the safety circuit. This approach is complicated and expensive.
  • Cabinet door wings can be analyzed by the sensor means and diagnosable. In addition, a gradual deterioration of individual subsystems can be identified so that preventive maintenance can be initiated in good time.
  • the object of the invention is thus seen to provide improved monitoring for elevator shaft doors, with the disadvantages of the prior art can be avoided or at least greatly reduced.
  • Fig. 1 shows a first embodiment of the invention.
  • An elevator system is shown which comprises an elevator car 12, which is guided vertically movably in an elevator shaft 10.
  • the elevator car 12 can serve the three floors A, B and C.
  • the elevator car 12 is closed by a car door 13.
  • Each of the three floors has a shaft door 11.
  • the shaft door 11 becomes this Floor opened by the car door 13.
  • the elevator car 12 is at the level of the floor B.
  • the corresponding shaft door 11 and the car door are open, which can not be seen in Fig. 1.
  • the shaft door 11 is provided with a self-closing device, so that the wings of the shaft door 11, if they are not actively kept open, fall by itself.
  • Shaft and car doors can have one or more leaves.
  • the invention will be described in each case only with reference to doors with a door leaf. It is hereby stated that the inventive features, functions and properties also apply to multi-leaf doors.
  • a controller 16 is provided, which is in communication with a drive 14 and moves the elevator car 12 via a cable 22.
  • the elevator car 12 is in communication with the elevator control 16 via a cabin bus 17.
  • the cabin bus 17 is a safety bus.
  • the elevator installation is equipped with contactless sensor means 15, 19. These sensor means 15, 19 serve to monitor from the elevator car 12 whether the locking of the shaft door bolt 18 has taken place.
  • the sensor means 15, 19 also serve to repeatedly monitor the locked state of the shaft door bolt 18, wherein these Monitoring is performed while the elevator car 12 moves past the shaft doors.
  • the sensor means 15, 19 are connectable via the cabin bus 17 to the elevator control 16.
  • the sensor means 15 may be connected to the elevator controller 16 by a security monitoring system.
  • a security monitoring system can serve to detect at least a part of the safety-relevant states of an elevator installation separately from the actual elevator control and to trigger reactions in the event of problems by these engaging directly in the elevator control system.
  • the sensor means 15, 19 can detect the locked state of the local shaft door bolt 18 each time it passes a shaft door. This status information can be transmitted to the controller 16. If one of the shaft door latches 18 is not locked, then a corresponding reaction (eg shutting down the elevator or emergency call) can be triggered.
  • a further embodiment of the invention is characterized in that the non-contact sensor means comprises an active sensor part 15 and a passive sensor part 19, as shown by way of example in FIG.
  • the active sensor part 15 is arranged on the elevator car 12 - for example on the car door - and the passive sensor part 19 in the area of the shaft door bolt 18 to be monitored.
  • the passive sensor part 19 can sit directly on the shaft door latch 18 to be monitored.
  • the arrangement of the active and the passive sensor part takes place so that the active sensor part 15 can interact with the passive sensor part 19 as soon as the elevator car 12 stops behind the shaft door 11 to be monitored and the shaft door 11 together with the shaft door latch 18 to be monitored are closed ,
  • Fig. 2 a state is shown, in which the shaft door latch 18 is closed and the elevator car 12 together with the active sensor part 15 approaches the holding position.
  • the cabin 12 may be equipped with a bus node 20. All elements of the cabin 12 which access the bus 17, or which must be reachable by the bus, can be connected to the bus 17 via the bus node 20.
  • the active sensor part 15 can be connected to the bus node 20 via a cable 21 or a different type of connection.
  • the sensor means is connected to the elevator control via direct (parallel) wiring. In this case, there is no need for a car bus to establish a connection between the sensor means and the elevator control.
  • the two sensor parts 15 and 19 are designed and mounted so that they can interact for a short time when the elevator car 12 passes by a shaft door 11 to be monitored and the shaft door 11 together with the shaft door latch 18 to be monitored are closed. As a result, the car 12 can be checked each time the car passes over the shaft door latch 18.
  • the hoistway door latch 18 may be mounted on the wing of the hoistway door 11 so as to be lockable with a part fixedly connected to a door frame fixed to the hoistway 10.
  • the shaft door latch 18 comprises an axis of rotation and a hook-shaped arm which engages in a recess of the part connected to the hoistway door frame.
  • the shaft door latch 18 is provided with a weight or with a spring, so that the bolt 18 automatically locks the wing of the shaft door 11 as soon as it has reached its closed position.
  • a closing mechanism 30 according to the invention is shown in FIG.
  • the form of representation is chosen so that one sees the closing mechanism 30 from the elevator car through the car door 35 (shown in dashed lines).
  • a shaft door latch 28 in the closed state (ie in the locked state) to see.
  • the shaft door latch 28 engages with a hook-shaped arm 33 in a recess of the hoistway door frame 31, and locks the hoistway door 41 against unintentional or unauthorized opening.
  • the latch 28 is arranged so that it can rotate about an axis 32, as indicated by the arrow.
  • the shaft door latch 28 is provided with a weight 34, so that the latch 28 hooks on its own, as soon as the wing of the shaft door 41 has reached its closed position.
  • the deflection mechanism 37 is provided with rollers 40 in order to allow a friction-reduced movement of the driver blades 36.
  • the cam followers 36 are kept at a minimum mutual distance (such as by a spring) so that the elevator car can move from floor to floor without the cam followers 36 engaging the rollers 40 of the hoistway doors 41 mounted deflection mechanism 37 collide. Only when the elevator car approaches a floor and the door opening process begins, the driver swords 36 are spread apart. The door opening operation can already be started while the elevator car is slowly approaching the stop position, since the cam followers 36 have a corresponding length. As soon as the leading ends of the two driving tabs 36 are between the rollers 40, the spreading movement can begin.
  • FIG. 4 A corresponding sensor means is shown schematically in FIG. In Fig. 4, a sensor means is shown, which operates optically.
  • a shaft door latch 52 At the upper end of the wing of a hoistway door 51 sits a shaft door latch 52 which engages in a recess of the hoistway door frame 57 and locks the wing of the hoistway door 51.
  • an elevator car (not shown) at the same height as the hoistway door 51.
  • the elevator car carries a car door 53 with a door leaf, at the upper end of which an active sensor means 54, 55 is provided. It comprises a transmitter 54 which emits a light beam in the direction of the shaft door bolt 52.
  • a passive sensor part 59 which reflects the light beam and directs back towards the active sensor means. There it is received by a receiver 55 and converted into an electrical signal, which can be transmitted for evaluation either to a local evaluation device or via a bus or via a parallel wiring to a remote evaluation device. If the shaft door latch 52 is in the desired position, the light beam is for the most part reflected and detected at the receiver end. If the shaft door latch 52 is opened (unlocked), the passive sensor part 59 is not in the area of the emitted light beam and no light or only a small portion of the light is reflected towards the receiver. Thus, it can be seen whether the shaft door latch 52 is closed. If the sensor means based on an optical principle works fast enough, it is also possible to ascertain from the elevator car that the shaft door latch 52 is locked while passing by. As passive sensor means 59 one can use for example a mirror or a mirrored surface or a reflector.
  • RFID tag for example in the form of a thin sticker
  • An RFID tag can be fixed on the shaft door latch.
  • an active sensor part which essentially comprises a transmitter and receiver.
  • the transmitter emits an electromagnetic field.
  • the active part and the passive part are in a certain predefined position relative to each other, the electromagnetic field interacts with the RFID tag.
  • the RFID tag absorbs electromagnetic energy and sends an identification signal back.
  • Each of the shaft doors can be assigned a unique identification.
  • the contactless sensor means can detect whether an identification signal is received, from which one can conclude that the shaft door latch is closed, since only in this case, the interaction between transmitter, RFID tag and receiver comes about.
  • the respective shaft door can be clearly identified by the identification. If, for example, problems arise with the shaft door latch in one of the shaft doors, then the affected shaft door can be identified, thereby ensuring that a service technician can locate the problematic point more quickly. This is especially important for large buildings with many floors.
  • a further embodiment is characterized in that a magnetic element is provided as a passive sensor part in the region of the shaft door bolt to be monitored.
  • a magnetic sensor At the elevator car or preferably at the car door is a magnetic sensor, which serves as an active sensor part. The arrangement and sensitivity must be selected so that the magnetic field emanating from the magnetic element is detectable by the magnetic sensor when the elevator car is in the area behind a shaft door and the shaft door latch is locked.
  • ultrasonic or RF-based sensor means can also use ultrasonic or RF-based sensor means. It is also possible to use inductively or capacitively operating sensor means. In the case of a capacitively operating sensor means, the arrangement can be selected such that a disturbance of an electromagnetic field results in the presence of the locked shaft door bolt in the vicinity of the active sensor part. Such a disorder can be made detectable, for example by the detuning of a resonant circuit.
  • a second non-contact sensor means can be used instead of just one non-contact sensor means per shaft door latch.
  • a further embodiment of the invention is characterized in that a shaft door latch is provided which serves to mechanically lock the shaft door latch to prevent unintentional opening of the shaft door latch and thus the shaft door.
  • the shaft door latch is designed so that it can be activated from the elevator car.
  • the lock position of the shaft door bolt can be secured, for example, by a suitable bolt such that the shaft door latch can not unlock as long as this bolt is in a safety position. A permanent monitoring of the shaft doors is therefore no longer necessary, if you can rest assured that the shaft door was securely closed, locked and secured by the shaft door latch.
  • the shaft door latch is mechanically unlocked from the elevator car as the elevator car approaches a floor to which the elevator car stops.
  • An example of the mechanical unlocking of the shaft door latch is shown in FIG.
  • the elevator car 62 carries a car door 65 to which an unlocking cam 63 is attached.
  • This unlocking curve 63 is seated on a fastening means 61, which is designed so that the unlocking curve 63 are withdrawn during normal travel of the elevator car 62 can. This is necessary to prevent the unlocking cam 63 from colliding with the hoistway door lock 64 as it passes a hoistway door.
  • the unlocking curve 63 is extended by increasing the distance to the car door 65. As shown in Fig.
  • the shaft door latch 64 has a recess 66.
  • the profile of the Entriegelungskurve 63 is selected so that the upper free end of the Entriegelungskurve 63 engages in the recess 66 of the shaft door latch 64 (this initial state is shown in Fig. 5) while the car 62 makes a small upward movement (if the car 62 approaches the floor from below) and then comes to rest at the floor level. While the elevator car 62 covers the last few inches of travel, the shaft door latch 64 slides along the unlocking curve 63 and follows its profile. This results in a movement of the shaft door latch 64 away from the shaft door to the car door 65. This movement is sufficient to unlock the shaft door latch - which is not shown in Fig. 5 - to unlock.
  • the shaft door latch 64 can be unlocked by spreading the catch swords and the shaft door can be opened. Leaves the elevator car 62 the floor after the wing of the shaft door has reached its closed position and the shaft door latch is in the locked position, the shaft door latch 64 is pushed by the unlocking curve 63 back towards the shaft door to secure there the shaft door latch.
  • the shaft door latch is unlocked without contact.
  • the shaft door latch can be unlocked, for example, via a magnetic field that can be switched on and off.
  • the generation of the magnetic field e.g. by a coil on a soft iron core, takes place from the elevator car.
  • FIG. It is a shaft door latch 78 in the closed state (ie in the locked state) to see.
  • the shaft door latch 78 engages with a hook-shaped arm 73 in a lock 71, and locks the wing of the shaft door against accidental or unauthorized opening.
  • the latch 78 is arranged to rotate about an axis 72.
  • the shaft door latch 78 is provided with a weight 74, so that the latch 78 automatically locks into the lock, as soon as the wing of the shaft door has reached its closed position. Now, when the elevator car with the car door approaches a floor, so grab two attached to the wing of the car door catch tabs (not shown) between two rollers 80 of a deflection mechanism.
  • the deflection mechanism is designed in the embodiment shown so that one of the rollers 80 is attached to the sash of the shaft door and the second roller 80 is attached directly to the shaft door latch 78.
  • the two driving tabs are spread apart, thereby exerting a force on the rollers 80 of the deflection mechanism.
  • the shaft door latch 78 completes a limited rotational movement counterclockwise about its axis of rotation 72.
  • the weight 74 of the bolt 78 is raised and the lock against the lock 71 is solved. Now the shaft door can be opened through the car door.
  • the hoistway door latch and the hoistway door latch is designed so that, in an emergency, the hoistway door can be unlocked from the landing side by a service technician or other personnel.
  • a service technician or other personnel for this purpose, for example, a special tool can be provided.
  • a solution is provided which is based on combining a method for closing the shaft doors by the car door (s) with a cabin-side monitoring, which detects whether the locking of the shaft door latch has occurred.
  • the invention is based on the fact that the shaft doors are securely closed and locked after each actuation. So you can do without the usual shaft door contacts and consequently also on a large part of the safety circuit.
  • the shaft doors can only be opened by the car if it is located on a corresponding floor behind the shaft doors.
  • a shaft door can also be opened by a service technician when using a special tool for this purpose. It can therefore be assumed that a shaft door is only open or can be opened when either an elevator car is behind the corresponding shaft door, or when a suitably trained service technician is present.
  • a sensor which makes it possible to monitor whether a shaft door has been opened with a special tool.
  • a sensor is less stressed, since an opening with special tools is rare.
  • a sensor can be made to be less susceptible to bending, shifting, wear, etc.

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  • Elevator Door Apparatuses (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Control (AREA)
  • Types And Forms Of Lifts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Control And Safety Of Cranes (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A shaft monitoring system for an elevator installation includes a contactless sensor enabling recognition from the elevator car whether a shaft door lock and a shaft door leaf are in a correct locked setting. A securing device mechanically secures the shaft door lock in order to prevent opening of the shaft door and is mechanically and/or electromagnetically actuatable from the elevator car. The contactless sensor includes an active sensor part arranged at the car door and a passive sensor part arranged at the shaft door lock to be monitored. The active sensor part interacts with the passive sensor part as soon as the elevator car stops behind the shaft door and the shaft door leaf and the shaft door lock are disposed in the correct locked setting. The active sensor part also can transiently interact with the passive sensor part when the elevator car moves past the shaft door.

Description

Die Erfindung betrifft die Überwachung der Schachttüren eines Aufzugssystems.The invention relates to the monitoring of the shaft doors of an elevator system.

Aufzugssysteme herkömmlicher Art wie zum Beispiel DE 19963038 weisen im Allgemeinen Schachttüren auf, mit welchen in jedem Stockwerk der Aufzugsschacht von den angrenzenden Räumen abtrennbar ist. Viele Aufzugssysteme weisen ausserdem Kabinentüren auf, mit welchen die Aufzugskabine selbst verschliessbar ist, und welche sich zusammen mit der Kabine von Stockwerk zu Stockwerk bewegen. Aus Sicherheitsgründen müssen im Betrieb alle Schachttüren stets geschlossen sein, mit Ausnahme der Schachttüre desjenigen Stockwerkes, in welchem die Aufzugskabine gerade anhält. Ebenso müssen die Kabinentüren geschlossen sein, wenn der Aufzug nicht gerade in einem Stockwerk anhält, um be- oder entladen bzw. um betreten oder verlassen zu werden. Zu Unterhaltszwecken können die Schacht- und/oder Kabinentüren natürlich auch geöffnet werden, wenn sich die Aufzugskabine andernorts als in den oben beschriebenen Lagen befindet. Der Zustand, d.h. die Stellung der Schachttüren bzw. die Stellung von Riegeln, mit welchen der oder die Schachttürflügel in ihrer Schliessstellung verriegelbar sind, werden mit Hilfe von Oberwachungssystemen überwacht. Hierzu sind Sensormittel, zum Beispiel in der Art von zwangsgeführten Einrichtungen mit Sicherheitskontaktstellen vorgesehen. Die Sicherheitskontaktstellen sind in Serienschaltung in einem Sicherheitskreis integriert. Die Anordnung ist so ausgeführt, dass die Aufzugskabine nur dann bewegt werden kann, wenn der Sicherheitskreis und damit auch alle in ihm integrierten Sicherheitskontakte geschlossen sind.Elevator systems of conventional type, such as DE 19963038, generally have landing doors with which the lift shaft can be separated from the adjoining rooms on each floor. Many elevator systems also have cabin doors, with which the elevator car itself is lockable, and which move together with the cabin from floor to floor. For safety reasons, all shaft doors must always be closed during operation, with the exception of the shaft door of that floor in which the elevator car is just stopping. Similarly, the car doors must be closed when the elevator is not stopping on a floor to be loaded or unloaded or entered or left. For maintenance purposes, of course, the manhole and / or cabin doors can also be opened when the elevator car is located elsewhere than in the above-described situations. The state, ie the position of the shaft doors or the position of bars with which the shaft door or latches can be locked in their closed position, are monitored by means of monitoring systems. For this purpose, sensor means, for example in the form of positively driven devices with safety contact points are provided. The safety contact points are integrated in series in a safety circuit. The arrangement is designed so that the elevator car can only be moved when the safety circuit and thus all safety contacts integrated in it are closed.

Überwachungssysteme mit Sicherheitskreisen dieser Art sind mit zahlreichen Nachteilen behaftet, die im Folgenden kurz aufgeführt werden.Surveillance systems with safety circuits of this type have numerous disadvantages, which are briefly listed below.

Jeder Sicherheitskreis weist inhärente Probleme auf; hierzu gehören die Länge der Verbindungen, der Spannungsabfall im Sicherheitskreis und der verhältnismässig hohe Montageaufwand.
Die einzelnen Sicherheitskontakte sind verhältnismässig störanfällig; es kommt daher häufig zu unnötigen Notstops des Aufzugssystems.
Trotz eines Überwachungssystems mit einem Sicherheitskreis lassen sich unsichere bzw. gefährliche Situationen nicht ganz vermeiden; einerseits lassen sich die Sicherheitskontakte einzeln oder gemeinsam verhältnismässig leicht überbrücken, was praktisch einem Ausserkraftsetzen der Sicherheitsvorkehrungen gleichkommt; anderseits verhindert eine offenen Schachttüre zwar eine Bewegung der Kabine, aber wenn sich die Kabine nicht bei der gerade offenen Schachttüre befindet, besteht dennoch die Gefahr eines Absturzes durch die offene Schachttüre.
Intelligente bzw. situationsgerechte Reaktionen, zum Beispiel im Falle einer Unterbrechung des Sicherheitskreises, sind nicht möglich; insbesondere kann nicht vermieden werden, dass Personen in der Aufzugskabine ungewollt eingeschlossen werden.
Das Überwachungssystem erlaubt keine spezifische Diagnose; das heisst, dass bei offenem Sicherheitskreis nur festgestellt wird, dass mindestens ein Sicherheitskontakt und damit mindestens eine Verriegelung bzw. mindestens eine Schachttüre offen ist. Es kann aber nicht festgestellt werden, welcher Sicherheitskontakt geöffnet ist. Bevor eine Störung im Sicherheitskreis auftritt, liefert das Überwachungssystem keine Information, die den Zustand (Abnutzung, Korrosion) einzelner Sicherheitskontakte erkennen lässt oder deren Identifikation ermöglicht. Eine zustandsabhängige Wartung zu einem Zeitpunkt, in dem das Aufzugssystem problemlos stillgelegt werden kann, wird damit nicht unterstützt.Each safety circuit has inherent problems; These include the length of the connections, the voltage drop in the safety circuit and the relatively high assembly costs.
The individual safety contacts are relatively prone to failure; Therefore, it often comes to unnecessary emergency stops of the elevator system.
Despite a monitoring system with a safety circuit, unsafe or dangerous situations can not be completely avoided; On the one hand, the safety contacts can be individually or jointly bridged relatively easily, which is practically equivalent to an override of the security arrangements; On the other hand, an open shaft door prevents movement of the car, but if the car is not in the shaft door that is currently open, there is still the risk of falling through the open shaft door.
Intelligent or situational reactions, for example in the event of a break in the safety circuit, are not possible; In particular, it can not be avoided that persons are inadvertently trapped in the elevator car.
The monitoring system does not allow a specific diagnosis; This means that when the safety circuit is open it is only ascertained that at least one safety contact and thus at least one lock or at least one shaft door is open. However, it can not be determined which safety contact is open. Before a fault occurs in the safety circuit, the monitoring system does not provide any information which indicates the condition (wear, Corrosion) of individual safety contacts or allows their identification. Condition-dependent maintenance at a time when the elevator system can be easily shut down is therefore not supported.

Die Verfügbarkeit des Aufzuges ist eingeschränkt, da ein offener Sicherheitskontakt immer eine Ausserbetriebssetzung des Aufzugssystems zur Folge hat, auch wenn eine andere Lösung, zum Beispiel eine Absperrung des Zugangsbereiches zu einer nicht-schliessbaren Schachttüre, möglich wäre.The availability of the elevator is limited, since an open safety contact always has a shutdown of the elevator system result, even if another solution, for example, a barrier to the access area to a non-closable shaft door, would be possible.

Es ist ein weiterer Nachteil bekannter Systeme, dass jeder Schachttürflügel mit mindestens einem elektrischen Kontakt versehen ist, der in den Sicherheitskreis eingebunden sein muss. Dieser Ansatz ist aufwendig und teuer.It is a further disadvantage of known systems that each shaft door wing is provided with at least one electrical contact which must be integrated into the safety circuit. This approach is complicated and expensive.

Ein verbessertes System, bei dem der Zustand der Schachttüren über einen stockwerkseitigen Bus und über einen Kabinenbus erfasst wird, ist in der parallelen Patentanmeldung mit Titel "Aufzugssystem" beschrieben. Diese Parallelanmeldung wurde am 18.09.01 eingereicht und trägt die Anmeldenummer 01810903.3. Bei dem in dieser Patentanmeldung beschriebenen Überwachungssystem für einen Aufzug weisen die Schachttüren und/oder die Kabinentüren Sensormittel auf, mit denen ihr Zustand, das heisst die Position ihrer Türflügel, detektiert wird. Das Überwachungssystem weist ferner ein mit den Sensormitteln verbundenes Auswertesystem auf, welches die von den Sensormitteln gelieferten Signale auswertet. Diese Auswertung erfolgt in kurzen Zeitabständen und erlaubt es, den Zustand der überwachten Schacht- oder Kabinentürflügel zu erfassen; ebenso können zeitliche Änderungen der Signalcharakteristik erfasst werden. Gemäss diesem verbesserten System ist die Erfassung des Zustandes der Schacht- bzw.An improved system, in which the state of the shaft doors is detected via a floor-side bus and a cabin bus, is described in the parallel patent application entitled "elevator system". This parallel application was filed on 18.09.01 and bears the application number 01810903.3. In the monitoring system for an elevator described in this patent application, the shaft doors and / or the car doors have sensor means with which their condition, that is the position of their door leaves, is detected. The monitoring system further has an evaluation system connected to the sensor means, which evaluates the signals supplied by the sensor means. This evaluation takes place at short intervals and makes it possible to detect the condition of the monitored manhole or car door wings; as well temporal changes of the signal characteristic can be detected. According to this improved system, the detection of the state of the shaft or

Kabinentürflügel durch die Sensormittel analysierbar und diagnosefähig. Ausserdem ist eine graduelle Verschlechterung einzelner Subsysteme erkennbar, so dass rechtzeitig ein präventiver Unterhalt eingeleitet werden kann.Cabinet door wings can be analyzed by the sensor means and diagnosable. In addition, a gradual deterioration of individual subsystems can be identified so that preventive maintenance can be initiated in good time.

Die Aufgabe der Erfindung wird somit darin gesehen, eine verbesserte Überwachung für Aufzugs-Schachttüren aufzuzeigen, mit der die Nachteile des Standes der Technik vermieden oder mindestens stark reduziert werden können.The object of the invention is thus seen to provide improved monitoring for elevator shaft doors, with the disadvantages of the prior art can be avoided or at least greatly reduced.

Die Lösung der Aufgabe erfolgt durch die Merkmale des Anspruchs 1, durch die Merkmale des Anspruchs 6 und durch die Merkmale des Anspruchs 9.The object is achieved by the features of claim 1, by the features of claim 6 and by the features of claim 9.

Vorteilhafte Weiterbildungen des erfindungsgemässen Aufzugssystems sind durch die abhängigen Patentansprüche 2 bis 5, 7, 8 und 10 definiert.Advantageous developments of the elevator system according to the invention are defined by the dependent claims 2 to 5, 7, 8 and 10.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen und mit Bezug auf die Zeichnung ausführlich beschrieben. Es zeigen:

Fig. 1
ein Aufzugssystem mit einem ersten Überwachungssystem gemäss Erfindung, in stark vereinfachter schematisierter Darstellung;
Fig. 2
eine Detailansicht eines Schachttürriegels mit Sensormittel, gemäss Erfindung;
Fig. 3
eine Detailansicht eines Schachttürriegels mit Umlenkmittel, gemäss Erfindung;
Fig. 4
eine Detailansicht eines Schachttürriegels mit Sensormittel, gemäss Erfindung;
Fig. 5
eine Detailansicht eines mechanischen Systems zum Sichern und Entsichern einer Schachttürriegelsicherung, gemäss Erfindung; und
Fig. 6
eine Detailansicht eines weiteren Schachttürriegels mit Umlenkmittel, gemäss Erfindung.
In the following the invention will be described in detail by means of embodiments and with reference to the drawing. Show it:
Fig. 1
an elevator system with a first monitoring system according to the invention, in a highly simplified schematic representation;
Fig. 2
a detailed view of a shaft door bolt with sensor means, according to the invention;
Fig. 3
a detailed view of a shaft door bolt with deflection, according to the invention;
Fig. 4
a detailed view of a shaft door bolt with sensor means, according to the invention;
Fig. 5
a detailed view of a mechanical system for securing and unlocking a bay door lock, according to the invention; and
Fig. 6
a detailed view of another shaft door bolt with deflection, according to the invention.

Fig. 1 zeigt eine erste Ausführungsform der Erfindung. Es ist ein Aufzugssystem gezeigt, das eine Aufzugkabine 12 umfasst, die in einem Aufzugschacht 10 vertikal bewegbar geführt ist. Die Aufzugkabine 12 kann die drei Stockwerke A, B und C bedienen. Die Aufzugskabine 12 ist durch eine Kabinentüre 13 abgeschlossen. Jedes der drei Stockwerke weist eine Schachttüre 11 auf. Sobald die Aufzugskabine 12 hinter eine Stockwerktüre fährt, um an dem entsprechenden Stockwerk anzuhalten, so wird die Schachttüre 11 dieses Stockwerks durch die Kabinentüre 13 geöffnet. Im gezeigten Fall befindet sich die Aufzugkabine 12 auf der Höhe des Stockwerks B. Die entsprechende Schachttüre 11 und die Kabinentüre sind geöffnet, was in Fig. 1 nicht zu erkennen ist. Die Schachttüre 11 ist mit einer Selbstschliessvorrichtung versehen, damit die Flügel der Schachttüre 11, falls sie nicht aktiv offen gehalten werden, von selbst zufallen.Fig. 1 shows a first embodiment of the invention. An elevator system is shown which comprises an elevator car 12, which is guided vertically movably in an elevator shaft 10. The elevator car 12 can serve the three floors A, B and C. The elevator car 12 is closed by a car door 13. Each of the three floors has a shaft door 11. As soon as the elevator car 12 moves behind a floor door to stop at the corresponding floor, the shaft door 11 becomes this Floor opened by the car door 13. In the case shown, the elevator car 12 is at the level of the floor B. The corresponding shaft door 11 and the car door are open, which can not be seen in Fig. 1. The shaft door 11 is provided with a self-closing device, so that the wings of the shaft door 11, if they are not actively kept open, fall by itself.

Schacht- und Kabinentüren können einen oder mehrere Türflügel aufweisen. Im Folgenden wird die Erfindung jeweils nur mit Bezug auf Türen mit einem Türflügel beschrieben. Es wird hiermit festgehalten, dass die erfindungsgemässen Merkmale, Funktionen und Eigenschaften auch auf Mehrflügel-Türen zutreffen.Shaft and car doors can have one or more leaves. In the following, the invention will be described in each case only with reference to doors with a door leaf. It is hereby stated that the inventive features, functions and properties also apply to multi-leaf doors.

Es ist ein selbsttätig verriegelnder Schachttürriegel 18 vorgesehen, der den Flügel der Schachttüre 11 verriegelt, sobald dieser seine Schliessstellung erreicht hat, wobei der Schachttürriegel 18 durch die Aufzugkabine 12 entriegelt werden kann.It is an automatically locking shaft door latch 18 is provided which locks the wing of the shaft door 11 as soon as it has reached its closed position, the shaft door latch 18 can be unlocked by the elevator car 12.

Wie in Fig. 1 schematisch angedeutet, ist eine Steuerung 16 vorgesehen, die mit einem Antrieb 14 in Verbindung steht und die Aufzugkabine 12 über ein Seil 22 bewegt. Die Aufzugkabine 12 steht über einen Kabinenbus 17 mit der Aufzugsteuerung 16 in Kommunikationsverbindung. Vorzugsweise handelt es sich bei dem Kabinenbus 17 um einen Sicherheitsbus. Gemäss Erfindung ist die Aufzugsanlage mit berührungslosen Sensormitteln 15, 19 ausgestattet. Diese Sensormittel 15, 19 dienen dazu, von der Aufzugkabine 12 aus zu überwachen, ob das Verriegeln des Schachttürriegels 18 erfolgt ist. Darüber hinaus können je nach Ausführungsform die Sensormittel 15, 19 auch zum wiederholten Überwachen des verriegelten Zustandes des Schachttürriegels 18 dienen, wobei diese Überwachung durchgeführt wird, während sich die Aufzugkabine 12 an den Schachttüren vorbei bewegt. Um die Überwachung von der Kabine 12 aus zu ermöglichen, sind die Sensormittel 15, 19 über den Kabinenbus 17 mit der Aufzugsteuerung 16 verbindbar. Alternativ kann das Sensormittel 15 durch ein Sicherheitsüberwachungssystem mit der Aufzugsteuerung 16 verbunden sein. Ein solches Sicherheitsüberwachungssystem kann dazu dienen, zumindest einen Teil der sicherheitsrelevanten Zustände einer Aufzuganlage separat von der eigentlichen Aufzugsteuerung zu erfassen und beim Auftreten von Problemen Reaktionen auszulösen, indem diese direkt in die Aufzugsteuerung eingreift.As indicated schematically in FIG. 1, a controller 16 is provided, which is in communication with a drive 14 and moves the elevator car 12 via a cable 22. The elevator car 12 is in communication with the elevator control 16 via a cabin bus 17. Preferably, the cabin bus 17 is a safety bus. According to the invention, the elevator installation is equipped with contactless sensor means 15, 19. These sensor means 15, 19 serve to monitor from the elevator car 12 whether the locking of the shaft door bolt 18 has taken place. In addition, depending on the embodiment, the sensor means 15, 19 also serve to repeatedly monitor the locked state of the shaft door bolt 18, wherein these Monitoring is performed while the elevator car 12 moves past the shaft doors. In order to enable monitoring from the cabin 12, the sensor means 15, 19 are connectable via the cabin bus 17 to the elevator control 16. Alternatively, the sensor means 15 may be connected to the elevator controller 16 by a security monitoring system. Such a safety monitoring system can serve to detect at least a part of the safety-relevant states of an elevator installation separately from the actual elevator control and to trigger reactions in the event of problems by these engaging directly in the elevator control system.

Die Wirkungsweise der oben beschriebenen Ausführungsform ist wie folgt:

  • Bevor die Aufzugkabine 12 ein Stockwerk (z.B. Stockwerk B) verlässt, werden die Kabinentüre 13 und mit dieser auch der Flügel der Schachttüre 11 dieses Stockwerks geschlossen. Sobald der Flügel der Schachttüre 11 seine Schliessstellung erreicht hat, fällt der Schachttürriegel 18 ins Schloss, wodurch die Schachttüre gegen unberechtigtes oder versehentliches Öffnen gesichert ist. Die berührungslosen Sensormittel 15, 19 teilen der Aufzugsteuerung über den Bus 17 mit, dass der Schachttürriegel 18 geschlossen wurde und nun geschlossen ist. Erst nachdem der Schachttürriegel 18 als geschlossen gemeldet worden ist, setzt die Aufzugsteuerung 16 die Aufzugkabine 12 über den Antrieb 14 in Bewegung. Solange diese Meldung fehlt, bleibt die Aufzugkabine 12 im Stillstand.
The operation of the embodiment described above is as follows:
  • Before the elevator car 12 leaves a floor (eg floor B), the car door 13 and with it the wing of the shaft door 11 of this floor are closed. Once the wing of the shaft door 11 has reached its closed position, the shaft door latch 18 falls into the lock, whereby the shaft door is secured against unauthorized or accidental opening. The non-contact sensor means 15, 19 notify the elevator controller via the bus 17 that the shaft door latch 18 has been closed and is now closed. Only after the shaft door latch 18 has been reported as closed does the elevator control 16 set the elevator car 12 in motion via the drive 14. As long as this message is missing, the elevator car 12 remains at a standstill.

Während sich die Aufzugskabine 12 im Schacht 10 bewegt, können die Sensormittel 15, 19 bei jeder Vorbeifahrt an einer Schachttüre den verriegelten Zustand des dortigen Schachttürriegels 18 erfassen. Diese Zustandsinformation kann an die Steuerung 16 übermittelt werden. Sollte einer der Schachttürriegel 18 nicht verriegelt sein, so kann eine entsprechende Reaktion (z.B. Stilllegen des Aufzugs oder Notruf) ausgelöst werden.While the elevator car 12 is moving in the shaft 10, the sensor means 15, 19 can detect the locked state of the local shaft door bolt 18 each time it passes a shaft door. This status information can be transmitted to the controller 16. If one of the shaft door latches 18 is not locked, then a corresponding reaction (eg shutting down the elevator or emergency call) can be triggered.

Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass das berührungslose Sensormittel ein aktives Sensorteil 15 und ein passives Sensorteil 19 umfasst, wie anhand eines Beispiels in Fig. 2 gezeigt. Das aktive Sensorteil 15 ist an der Aufzugkabine 12 - zum Beispiel an der Kabinentüre - und das passive Sensorteil 19 im Bereich des zu überwachenden Schachttürriegels 18 angeordnet. Wie in Fig. 2 gezeigt kann das passive Sensorteil 19 direkt an dem zu überwachenden Schachttürriegel 18 sitzen.A further embodiment of the invention is characterized in that the non-contact sensor means comprises an active sensor part 15 and a passive sensor part 19, as shown by way of example in FIG. The active sensor part 15 is arranged on the elevator car 12 - for example on the car door - and the passive sensor part 19 in the area of the shaft door bolt 18 to be monitored. As shown in FIG. 2, the passive sensor part 19 can sit directly on the shaft door latch 18 to be monitored.

Vorzugsweise erfolgt die Anordnung des aktiven und des passiven Sensorteils so, dass das aktive Sensorteil 15 mit dem passiven Sensorteil 19 in Wechselwirkung treten kann, sobald die Aufzugskabine 12 hinter der zu überwachenden Schachttüre 11 stoppt und die Schachttüre 11 samt dem zu überwachenden Schachttürriegel 18 geschlossen sind. In Fig. 2 ist ein Zustand gezeigt, bei dem der Schachttürriegel 18 geschlossen ist und sich die Aufzugkabine 12 samt aktivem Sensorteil 15 der Halteposition nähert.Preferably, the arrangement of the active and the passive sensor part takes place so that the active sensor part 15 can interact with the passive sensor part 19 as soon as the elevator car 12 stops behind the shaft door 11 to be monitored and the shaft door 11 together with the shaft door latch 18 to be monitored are closed , In Fig. 2, a state is shown, in which the shaft door latch 18 is closed and the elevator car 12 together with the active sensor part 15 approaches the holding position.

Wie in Figur 1 angedeutet, kann die Kabine 12 mit einem Busknoten 20 ausgestattet sein. Alle Elemente der Kabine 12, die auf den Bus 17 zugreifen, bzw. die durch den Bus erreichbar sein müssen, können über den Busknoten 20 mit dem Bus 17 verbunden sein. In der gezeigten Ausführungsform ist zum Beispiel das aktive Sensorteil 15 über ein Kabel 21 oder eine andersgeartete Verbindung mit dem Busknoten 20 verbindbar.As indicated in FIG. 1, the cabin 12 may be equipped with a bus node 20. All elements of the cabin 12 which access the bus 17, or which must be reachable by the bus, can be connected to the bus 17 via the bus node 20. In the embodiment shown, for example, the active sensor part 15 can be connected to the bus node 20 via a cable 21 or a different type of connection.

In einer anderen Ausführungsform ist das Sensormittel über eine direkte (parallele) Verdrahtung mit der Aufzugsteuerung verbunden. In diesem Fall braucht es keinen Kabinenbus, um eine Verbindung zwischen den Sensormitteln und der Aufzugsteuerung herzustellen.In another embodiment, the sensor means is connected to the elevator control via direct (parallel) wiring. In this case, there is no need for a car bus to establish a connection between the sensor means and the elevator control.

In einer weiteren bevorzugten Ausführungsform sind die beiden Sensorteile 15 und 19 so ausgelegt und montiert, dass sie jeweils kurzzeitig in Wechselwirkung treten können, wenn die Aufzugskabine 12 an einer zu überwachenden Schachttüre 11 vorbeifährt und die Schachttüre 11 samt dem zu überwachenden Schachttürriegel 18 geschlossen sind. Dadurch kann bei jeder Vorüberfahrt der Kabine 12 überprüft werden, ob der Schachttürriegel 18 geschlossen ist.In a further preferred embodiment, the two sensor parts 15 and 19 are designed and mounted so that they can interact for a short time when the elevator car 12 passes by a shaft door 11 to be monitored and the shaft door 11 together with the shaft door latch 18 to be monitored are closed. As a result, the car 12 can be checked each time the car passes over the shaft door latch 18.

Der Schachttürriegel 18 kann zum Beispiel so am Flügel der Schachttüre 11 montiert werden, dass er mit einem Teil verriegelbar ist, das fest mit einem am Aufzugschacht 10 befestigten Türrahmen verbunden ist. Zu diesem Zweck umfasst der Schachttürriegel 18 eine Drehachse und einen hakenförmig ausgebildeten Arm, der in eine Ausnehmung des mit dem Schachttürrahmen verbundenen Teils eingreift. Des weiteren ist der Schachttürriegel 18 mit einem Gewicht oder mit einer Feder versehen, damit der Riegel 18 den Flügel der Schachttüre 11 selbsttätig verriegelt, sobald dieser seine Schliessstellung erreicht hat.For example, the hoistway door latch 18 may be mounted on the wing of the hoistway door 11 so as to be lockable with a part fixedly connected to a door frame fixed to the hoistway 10. For this purpose, the shaft door latch 18 comprises an axis of rotation and a hook-shaped arm which engages in a recess of the part connected to the hoistway door frame. Furthermore, the shaft door latch 18 is provided with a weight or with a spring, so that the bolt 18 automatically locks the wing of the shaft door 11 as soon as it has reached its closed position.

Ein Schliessmechanismus 30 gemäss Erfindung ist in Fig. 3 gezeigt. Die Darstellungsform ist so gewählt, dass man den Schliessmechanismus 30 von der Aufzugkabine aus durch die Kabinentüre 35 (gestrichelt dargestellt) hindurch sieht. Im oberen Bereich der Fig. 3 ist ein Schachttürriegel 28 in geschlossenem Zustand (d.h. in verriegeltem Zustand) zu sehen. Der Schachttürriegel 28 greift mit einem hakenförmig ausgebildeten Arm 33 in eine Ausnehmung des Schachttürrahmens 31 ein, und verriegelt die Schachttüre 41 gegen ungewolltes oder unberechtigtes Öffnen. Der Riegel 28 ist so angeordnet, dass er sich um eine Achse 32 drehen kann, wie durch den Pfeil angedeutet. Der Schachttürriegel 28 ist mit einem Gewicht 34 versehen, damit der Riegel 28 von alleine einhakt, sobald der Flügel der Schachttüre 41 seine Schliessstellung erreicht hat.A closing mechanism 30 according to the invention is shown in FIG. The form of representation is chosen so that one sees the closing mechanism 30 from the elevator car through the car door 35 (shown in dashed lines). In the upper part of Fig. 3 is a shaft door latch 28 in the closed state (ie in the locked state) to see. The shaft door latch 28 engages with a hook-shaped arm 33 in a recess of the hoistway door frame 31, and locks the hoistway door 41 against unintentional or unauthorized opening. The latch 28 is arranged so that it can rotate about an axis 32, as indicated by the arrow. The shaft door latch 28 is provided with a weight 34, so that the latch 28 hooks on its own, as soon as the wing of the shaft door 41 has reached its closed position.

Wenn sich nun die Aufzugkabine mit ihrer Kabinentüre 35 einem Stockwerk nähert, so greifen zwei Mitnehmerschwerter 36 eines am Flügel der Kabinentüre 35 angebrachten Türmitnehmermechanismus in einen am Flügel der Schachttüre 41 angebrachten Umlenkmechanismus 37 ein, der mechanisch über eine Stange 38 mit dem Schachttürriegel 28 in Verbindung steht. Bei der gezeigten Ausführungsform des Schliessmechanismus 30, werden die Mitnehmerschwerter 36 vor Beginn der Türöffnungsbewegung voneinander gespreizt. Durch dieses Auseinanderbewegen der Mitnehmerschwerter 36 wird eine Kraft auf die Rollen 40 des Umlenkmechanismus 37 ausgeübt, wodurch der Umlenkmechanismus 37 eine leichte Rotationsbewegung entgegen den Uhrzeigersinn um die Drehachse 39 herum vollzieht, wie durch den Pfeil angedeutet. Dadurch drückt die Stange 38 das Gewicht 34 des Riegels 28 nach oben, und die Verriegelung des Flügels der Schachttüre 41 gegenüber dem Schachttürrahmen 31 wird gelöst. Nun kann die Schachttüre 41 durch die Kabinentüre 35 geöffnet werden.Now, when the elevator car with its car door 35 approaches a floor, so attack two driver blades 36 mounted on the wing of the car door 35 Türmitnehmermechanismus in a mounted on the wing of the shaft door 41 deflection mechanism 37, which mechanically via a rod 38 with the shaft door latch 28 in conjunction stands. In the illustrated embodiment of the closing mechanism 30, the driving tabs 36 are spread apart from each other before the start of the door opening movement. By this moving apart of the cam followers 36, a force is exerted on the rollers 40 of the deflection mechanism 37, whereby the deflection mechanism 37 performs a slight rotational movement counterclockwise about the rotation axis 39 around, as indicated by the arrow. As a result, the rod 38 pushes the weight 34 of the bolt 28 upwards, and the locking of the wing of the hoistway door 41 with respect to the hoistway door frame 31 is released. Now the shaft door 41 can be opened by the car door 35.

Beim gemeinsamen Schliessen von Kabinen- und Schachttüre bewegen sich am Ende des Schliessvorgangs die Mitnehmerschwerter 36 wieder aufeinander zu, so dass die vorstehend beschriebene Entriegelungswirkung aufgehoben wird und der hakenförmig ausgebildete Arm 33 des Riegels 28 in die mit dem Schachttürrahmen 31 verbundene Ausnehmung einrastet, wodurch der Flügel der Schachttüre 41 verriegelt ist.When common closing of the cabin and shaft door move the Mitnehmerschwerter 36 back to each other at the end of the closing process, so that the unlocking effect described above is canceled and the hook-shaped arm 33 of the bolt 28 in the with the shaft door frame 31 connected recess engages, whereby the wing of the shaft door 41 is locked.

Vorzugsweise ist der Umlenkmechanismus 37 mit Rollen 40 versehen, um ein reibungsvermindertes Bewegen der Mitnehmerschwerter 36 zu ermöglichen. Während sich die Aufzugkabine im Aufzugschacht bewegt, werden die Mitnehmerschwerter 36 (beispielsweise durch eine Feder) auf minimalem gegenseitigem Abstand gehalten, so dass sich die Aufzugkabine von Stockwerk zu Stockwerk bewegen kann, ohne dass die Mitnehmerschwerter 36 mit den Rollen 40 des an den Schachttüren 41 angebrachten Umlenkmechanismus 37 kollidieren. Erst wenn die Aufzugkabine sich einem Stockwerk nähert und der Türöffnungsvorgang beginnt, werden die Mitnehmerschwerter 36 voneinander gespreizt. Der Türöffnungsvorgang kann bereits begonnen werden, während sich die Aufzugkabine langsam der Halteposition nähert, da die Mitnehmerschwerter 36 eine entsprechende Länge aufweisen. Sobald sich die vorauslaufenden Enden der beiden Mitnehmerschwerter 36 zwischen den Rollen 40 befinden, kann die Spreizbewegung beginnen.Preferably, the deflection mechanism 37 is provided with rollers 40 in order to allow a friction-reduced movement of the driver blades 36. As the elevator car moves in the hoistway, the cam followers 36 are kept at a minimum mutual distance (such as by a spring) so that the elevator car can move from floor to floor without the cam followers 36 engaging the rollers 40 of the hoistway doors 41 mounted deflection mechanism 37 collide. Only when the elevator car approaches a floor and the door opening process begins, the driver swords 36 are spread apart. The door opening operation can already be started while the elevator car is slowly approaching the stop position, since the cam followers 36 have a corresponding length. As soon as the leading ends of the two driving tabs 36 are between the rollers 40, the spreading movement can begin.

Im Folgenden sind beispielhaft mehrere Möglichkeiten für die Realisierung der berührungslosen Sensormittel beschrieben. Ein entsprechendes Sensormittel ist schematisch in Fig. 4 dargestellt. In Fig. 4 ist ein Sensormittel gezeigt, das optisch arbeitet. Am oberen Ende des Flügels einer Schachttüre 51 sitzt ein Schachttürriegel 52, der in eine Ausnehmung des Schachttürrahmens 57 eingreift und den Flügel der Schachttüre 51 verriegelt. Es befindet sich eine Aufzugkabine (nicht gezeigt) auf der gleichen Höhe wie die Schachttüre 51. Die Aufzugkabine trägt eine Kabinentüre 53 mit einem Türflügel, an dessen oberem Ende ein aktives Sensormittel 54, 55 vorgesehen ist. Es umfasst einen Sender 54, der einen Lichtstrahl in Richtung des Schachttürriegels 52 aussendet.Below, by way of example, several possibilities for the realization of the non-contact sensor means are described. A corresponding sensor means is shown schematically in FIG. In Fig. 4, a sensor means is shown, which operates optically. At the upper end of the wing of a hoistway door 51 sits a shaft door latch 52 which engages in a recess of the hoistway door frame 57 and locks the wing of the hoistway door 51. There is an elevator car (not shown) at the same height as the hoistway door 51. The elevator car carries a car door 53 with a door leaf, at the upper end of which an active sensor means 54, 55 is provided. It comprises a transmitter 54 which emits a light beam in the direction of the shaft door bolt 52.

Am Schachttürriegel 52 befindet sich ein passives Sensorteil 59, das den Lichtstrahl reflektiert und in Richtung des aktiven Sensormittels zurück lenkt. Dort wird es von einem Empfänger 55 empfangen und in ein elektrisches Signal umgewandelt, das zur Auswertung entweder an eine lokale Auswertevorrichtung oder über einen Bus oder über eine Parallelverdrahtung an eine entfernte Auswertevorrichtung übermittelt werden kann. Befindet sich der Schachttürriegel 52 in der gewünschten Position, so wird der Lichtstrahl grösstenteils reflektiert und empfängerseitig detektiert. Falls der Schachttürriegel 52 geöffnet (nicht verriegelt) ist, befindet sich das passive Sensorteil 59 nicht im Bereich des ausgesendeten Lichtstrahles und es wird kein Licht oder nur ein kleiner Anteil des Lichtes zum Empfänger hin reflektiert. Somit ist erkennbar, ob der Schachttürriegel 52 geschlossen ist. Wenn das auf einem optischen Prinzip basierende Sensormittel schnell genug arbeitet, kann man von der Aufzugkabine aus auch im Vorbeifahren ermitteln, ob der Schachttürriegel 52 verriegelt ist. Als passives Sensormittel 59 kann man zum Beispiel einen Spiegel oder eine verspiegelte Fläche oder einen Reflektor verwenden.At the shaft door latch 52 is a passive sensor part 59, which reflects the light beam and directs back towards the active sensor means. There it is received by a receiver 55 and converted into an electrical signal, which can be transmitted for evaluation either to a local evaluation device or via a bus or via a parallel wiring to a remote evaluation device. If the shaft door latch 52 is in the desired position, the light beam is for the most part reflected and detected at the receiver end. If the shaft door latch 52 is opened (unlocked), the passive sensor part 59 is not in the area of the emitted light beam and no light or only a small portion of the light is reflected towards the receiver. Thus, it can be seen whether the shaft door latch 52 is closed. If the sensor means based on an optical principle works fast enough, it is also possible to ascertain from the elevator car that the shaft door latch 52 is locked while passing by. As passive sensor means 59 one can use for example a mirror or a mirrored surface or a reflector.

Ein weiteres Sensormittel, das berührungslos arbeitet und auf dem radio frequency identification-Prinzip (RFID) basiert, kann wie folgt realisiert werden. Auf dem Schachttürriegel kann ein RFID-Tag (zum Beispiel in Form eines dünnen Aufklebers) fixiert sein. An der Aufzugkabine befindet sich ein aktives Sensorteil, das im wesentlichen einen Sender und Empfänger umfasst. Der Sender sendet ein elektromagnetisches Feld aus. Wenn sich das aktive Teil und das passive Teil in einer bestimmten vordefinierten Stellung zueinander befinden, so tritt das elektromagnetische Feld mit dem RFID-Tag in Wechselwirkung. Dabei nimmt das RFID-Tag elektromagnetische Energie auf und sendet ein Identifikationssignal zurück. Jeder der Schachttüren kann eine einzigartige Identifikation zugeordnet werden. Damit kann das berührungslos arbeitende Sensormittel erkennen, ob ein Identifikationssignal empfangen wird, woraus man schliessen kann, dass der Schachttürriegel geschlossen ist, da nur in diesem Fall die Wechselwirkung zwischen Sender, RFID-Tag und Empfänger zustande kommt. Des weiteren kann die jeweilige Schachttüre eindeutig anhand der Identifikation erkannt werden. Sollten sich bei einer der Schachttüren zum Beispiel Probleme mit dem Schachttürriegel ergeben, so kann man die betroffene Schachtüre identifizieren und dadurch gewährleisten, dass ein Servicemonteur die problembehaftete Stelle schneller lokalisieren kann. Dies ist besonders bei grossen Gebäuden mit zahlreichen Stockwerken von Bedeutung.Another sensor means, which operates without contact and based on the radio frequency identification principle (RFID), can be realized as follows. An RFID tag (for example in the form of a thin sticker) can be fixed on the shaft door latch. At the elevator car is an active sensor part, which essentially comprises a transmitter and receiver. The transmitter emits an electromagnetic field. When the active part and the passive part are in a certain predefined position relative to each other, the electromagnetic field interacts with the RFID tag. The RFID tag absorbs electromagnetic energy and sends an identification signal back. Each of the shaft doors can be assigned a unique identification. Thus, the contactless sensor means can detect whether an identification signal is received, from which one can conclude that the shaft door latch is closed, since only in this case, the interaction between transmitter, RFID tag and receiver comes about. Furthermore, the respective shaft door can be clearly identified by the identification. If, for example, problems arise with the shaft door latch in one of the shaft doors, then the affected shaft door can be identified, thereby ensuring that a service technician can locate the problematic point more quickly. This is especially important for large buildings with many floors.

Eine weitere Ausführungsform zeichnet sich dadurch aus, dass ein magnetisches Element als passives Sensorteil im Bereich des zu überwachenden Schachttürriegels vorgesehen ist. An der Aufzugkabine oder vorzugsweise an der Kabinentüre befindet sich ein Magnetsensor, der als aktives Sensorteil dient. Die Anordnung und Empfindlichkeit muss so gewählt sein, dass das Magnetfeld, das von dem magnetischen Element ausgeht von dem Magnetsensor detektierbar ist, wenn sich die Aufzugkabine im Bereich hinter einer Schachttüre befindet und der Schachttürriegel verriegelt ist.A further embodiment is characterized in that a magnetic element is provided as a passive sensor part in the region of the shaft door bolt to be monitored. At the elevator car or preferably at the car door is a magnetic sensor, which serves as an active sensor part. The arrangement and sensitivity must be selected so that the magnetic field emanating from the magnetic element is detectable by the magnetic sensor when the elevator car is in the area behind a shaft door and the shaft door latch is locked.

Als Alternativen kann man auch Ultraschall- oder RF-basierte Sensormittel einsetzen. Es ist auch möglich, induktiv oder kapazitiv arbeitende Sensormittel einzusetzen. Bei einem kapazitiv arbeitenden Sensormittel kann man die Anordnung so wählen, dass sich bei Anwesenheit des verriegelten Schachttürriegels in der Nähe des aktiven Sensorteils eine Störung eines elektromagnetischen Feldes ergibt. Eine solche Störung kann zum Beispiel durch die Verstimmung eines Schwingkreises detektierbar gemacht werden.As alternatives, one can also use ultrasonic or RF-based sensor means. It is also possible to use inductively or capacitively operating sensor means. In the case of a capacitively operating sensor means, the arrangement can be selected such that a disturbance of an electromagnetic field results in the presence of the locked shaft door bolt in the vicinity of the active sensor part. Such a disorder can be made detectable, for example by the detuning of a resonant circuit.

Um zusätzliche Sicherheit zu erzielen, kann statt nur einem berührungslos arbeitenden Sensormittel pro Schachttürriegel auch ein zweites berührungslos arbeitendes Sensormittel eingesetzt werden.In order to achieve additional security, instead of just one non-contact sensor means per shaft door latch, a second non-contact sensor means can be used.

Eine weitere Ausführungsform der Erfindung zeichnet sich dadurch aus, dass eine Schachttürriegelsicherung vorgesehen ist, die dazu dient den Schachttürriegel mechanisch zu verriegeln, um ein unbeabsichtigtes Öffnen des Schachttürriegels und damit der Schachttüre zu verhindern. Die Schachttürriegelsicherung ist so ausgeführt, dass sie von der Aufzugkabine her aktivierbar ist. Die Riegelstellung des Schachttürriegels kann zum Beispiel durch einen geeigneten Bolzen derart gesichert werden, dass der Schachttürriegel sich nicht entriegeln kann, solange dieser Bolzen in einer Sicherungsposition ist. Eine dauernde Überwachung der Schachttüren ist somit nicht mehr notwendig, wenn man sich darauf verlassen kann, dass die Schachttüre sicher geschlossen, verriegelt und durch die Schachttürriegelsicherung gesichert wurde.A further embodiment of the invention is characterized in that a shaft door latch is provided which serves to mechanically lock the shaft door latch to prevent unintentional opening of the shaft door latch and thus the shaft door. The shaft door latch is designed so that it can be activated from the elevator car. The lock position of the shaft door bolt can be secured, for example, by a suitable bolt such that the shaft door latch can not unlock as long as this bolt is in a safety position. A permanent monitoring of the shaft doors is therefore no longer necessary, if you can rest assured that the shaft door was securely closed, locked and secured by the shaft door latch.

In einer ersten Ausführungsform wird die Schachttürriegelsicherung mechanisch von der Aufzugkabine her entriegelt, wenn sich die Aufzugkabine einem Stockwerk nähert an dem die Aufzugkabine anhält. Ein Beispiel für die mechanische Entriegelung der Schachttürriegelsicherung ist in Fig. 5 gezeigt. Die Aufzugkabine 62 trägt eine Kabinentüre 65, an der eine Entriegelungskurve 63 befestigt ist. Diese Entriegelungskurve 63 sitzt auf einem Befestigungsmittel 61, das so ausgeführt ist, dass die Entriegelungskurve 63 während der normalen Fahrt der Aufzugkabine 62 zurückgezogen werden kann. Dies ist notwendig, um zu verhindern, dass die Entriegelungskurve 63 bei der Vorbeifahrt an einer Schachttüre mit der Schachttürriegelsicherung 64 kollidiert. Wenn sich die Aufzugkabine 62 einem Zielstockwerk annähert, so wird die Entriegelungskurve 63 durch Vergrössern des Abstandes zur Kabinentüre 65 ausgefahren. Wie in Fig. 5 gezeigt, hat die Schachttürriegelsicherung 64 einen Ausnehmung 66. Das Profil der Entriegelungskurve 63 ist so gewählt, dass das obere freie Ende der Entriegelungskurve 63 in die Ausnehmung 66 der Schachttürriegelsicherung 64 eingreift (dieser Anfangszustand ist in Fig. 5 gezeigt) während die Kabine 62 eine kleine Aufwärtsbewegung (falls sich die Kabine 62 dem Stockwerk von unten nähert) vollzieht, um dann auf dem Stockwerkniveau zur Ruhe zu kommen. Während die Aufzugkabine 62 die letzten Zentimeter der Fahrt zurücklegt, rutscht die Schachttürriegelsicherung 64 entlang der Entriegelungskurve 63 und folgt deren Profil. Dadurch ergibt sich eine Bewegung der Schachttürriegelsicherung 64 von der Schachttüre weg auf die Kabinentüre 65 zu.
Diese Bewegung reicht aus, um den Schachttürriegel - der in Fig. 5 nicht gezeigt ist - zu entriegeln. Sobald die Schachttürriegelsicherung 64 entriegelt ist, kann durch das Spreizen der Mitnehmerschwerter der Schachttürriegel entriegelt und die Schachttüre geöffnet werden. Verlässt die Aufzugkabine 62 das Stockwerk nachdem der Flügel der Schachttüre seine Schliessstellung errreicht hat und der Schachttürriegel in Verriegelungsstellung ist, so wird die Schachttürriegelsicherung 64 durch die Entriegelungskurve 63 wieder in Richtung Schachttüre geschoben, um dort den Schachttürriegel zu sichern.In a first embodiment, the shaft door latch is mechanically unlocked from the elevator car as the elevator car approaches a floor to which the elevator car stops. An example of the mechanical unlocking of the shaft door latch is shown in FIG. The elevator car 62 carries a car door 65 to which an unlocking cam 63 is attached. This unlocking curve 63 is seated on a fastening means 61, which is designed so that the unlocking curve 63 are withdrawn during normal travel of the elevator car 62 can. This is necessary to prevent the unlocking cam 63 from colliding with the hoistway door lock 64 as it passes a hoistway door. When the elevator car 62 approaches a destination floor, the unlocking curve 63 is extended by increasing the distance to the car door 65. As shown in Fig. 5, the shaft door latch 64 has a recess 66. The profile of the Entriegelungskurve 63 is selected so that the upper free end of the Entriegelungskurve 63 engages in the recess 66 of the shaft door latch 64 (this initial state is shown in Fig. 5) while the car 62 makes a small upward movement (if the car 62 approaches the floor from below) and then comes to rest at the floor level. While the elevator car 62 covers the last few inches of travel, the shaft door latch 64 slides along the unlocking curve 63 and follows its profile. This results in a movement of the shaft door latch 64 away from the shaft door to the car door 65.
This movement is sufficient to unlock the shaft door latch - which is not shown in Fig. 5 - to unlock. Once the shaft door latch 64 is unlocked, the shaft door latch can be unlocked by spreading the catch swords and the shaft door can be opened. Leaves the elevator car 62 the floor after the wing of the shaft door has reached its closed position and the shaft door latch is in the locked position, the shaft door latch 64 is pushed by the unlocking curve 63 back towards the shaft door to secure there the shaft door latch.

Es sind zahlreiche andere Ausführungsformen denkbar, die dazu geeignet sind die Schachttürriegelsicherung 64 zu aktivieren und zu deaktivieren.Numerous other embodiments are conceivable that are capable of activating and deactivating the bay door latch 64.

In einer weiteren Ausführungsform wird die Schachttürriegelsicherung berührungslos entriegelt. In diesem Fall kann die Schachttürriegelsicherung zum Beispiel über ein an- und abschaltbares Magnetfeld entriegelt werden. Die Erzeugung des Magnetfeldes, z.B. durch eine Spule auf einem Weicheisenkern, erfolgt von der Aufzugkabine aus.In a further embodiment, the shaft door latch is unlocked without contact. In this case, the shaft door latch can be unlocked, for example, via a magnetic field that can be switched on and off. The generation of the magnetic field, e.g. by a coil on a soft iron core, takes place from the elevator car.

Ein weiterer Schachttürverriegelungsmechanismus 70 gemäss Erfindung ist in Fig. 6 gezeigt. Es ist ein Schachttürriegel 78 in geschlossenem Zustand (d.h. in verriegeltem Zustand) zu sehen. Der Schachttürriegel 78 greift mit einem hakenförmig ausgebildeten Arm 73 in ein Schloss 71 ein, und verriegelt den Flügel der Schachttüre gegen ungewolltes oder unberechtigtes Öffnen. Der Riegel 78 ist so angeordnet, dass er sich um eine Achse 72 drehen kann. Der Schachttürriegel 78 ist mit einem Gewicht 74 versehen, damit der Riegel 78 selbsttätig ins Schloss einrastet, sobald der Flügel der Schachttüre seine Schliessstellung erreicht hat. Wenn sich nun die Aufzugkabine mit der Kabinentüre einem Stockwerk nähert, so greifen zwei am Flügel der Kabinentüre angebrachte Mitnehmerschwerter (nicht gezeigt) zwischen zwei Rollen 80 eines Umlenkmechanismus ein. Der Umlenkmechanismus ist in der gezeigten Ausführungsform so gestaltet, dass eine der Rollen 80 am Flügel der Schachttüre und die zweite Rolle 80 direkt am Schachttürriegel 78 befestigt ist. Zum Entriegeln des Schachttürverriegelungsmechanismus 70, werden die beiden Mitnehmerschwerter voneinander gespreizt, wodurch diese eine Kraft auf die Rollen 80 des Umlenkmechanismus ausüben. Durch diese Kraft vollzieht der Schachttürriegel 78 um seine Drehachse 72 eine begrenzte Rotationsbewegung entgegen dem Uhrzeigersinn. Dadurch wird das Gewicht 74 des Riegels 78 angehoben und die Verriegelung gegenüber dem Schloss 71 wird gelöst. Nun kann die Schachttüre durch die Kabinentüre geöffnet werden.Another shaft door locking mechanism 70 according to the invention is shown in FIG. It is a shaft door latch 78 in the closed state (ie in the locked state) to see. The shaft door latch 78 engages with a hook-shaped arm 73 in a lock 71, and locks the wing of the shaft door against accidental or unauthorized opening. The latch 78 is arranged to rotate about an axis 72. The shaft door latch 78 is provided with a weight 74, so that the latch 78 automatically locks into the lock, as soon as the wing of the shaft door has reached its closed position. Now, when the elevator car with the car door approaches a floor, so grab two attached to the wing of the car door catch tabs (not shown) between two rollers 80 of a deflection mechanism. The deflection mechanism is designed in the embodiment shown so that one of the rollers 80 is attached to the sash of the shaft door and the second roller 80 is attached directly to the shaft door latch 78. To unlock the shaft door locking mechanism 70, the two driving tabs are spread apart, thereby exerting a force on the rollers 80 of the deflection mechanism. By this force, the shaft door latch 78 completes a limited rotational movement counterclockwise about its axis of rotation 72. Thereby, the weight 74 of the bolt 78 is raised and the lock against the lock 71 is solved. Now the shaft door can be opened through the car door.

Vorzugsweise wird der Schachttürriegel und die Schachttürriegelsicherung so ausgeführt, dass im Notfall die Schachttüre von der Stockwerkseite aus durch einen Servicemonteur oder durch anderes Personal entriegelt werden kann. Hierzu kann zum Beispiel ein Spezialwerkzeug vorgesehen werden.Preferably, the hoistway door latch and the hoistway door latch is designed so that, in an emergency, the hoistway door can be unlocked from the landing side by a service technician or other personnel. For this purpose, for example, a special tool can be provided.

Gemäss Erfindung wird eine Lösung bereit gestellt, die darauf aufbaut, dass man ein Verfahren zum Verschliessen der Schachttüren durch die Kabinentür(en) mit einer kabinenseitigen Überwachung kombiniert, die erkennen lässt, ob das Verriegeln der Schachttürriegel erfolgt ist. Die Erfindung basiert darauf, dass die Schachttüren nach jeder Betätigung sicher geschlossen und verriegelt werden. Damit kann man auf die üblichen Schachttürkontakte und folglich auch auf einen grossen Teil des Sicherheitskreises verzichten.According to the invention, a solution is provided which is based on combining a method for closing the shaft doors by the car door (s) with a cabin-side monitoring, which detects whether the locking of the shaft door latch has occurred. The invention is based on the fact that the shaft doors are securely closed and locked after each actuation. So you can do without the usual shaft door contacts and consequently also on a large part of the safety circuit.

Bei einem erfindungsgemässen Aufzugsystem können die Schachttüren nur durch die Kabine geöffnet werden, wenn sich diese auf einem entsprechenden Stockwerk hinter den Schachttüren befindet. Vorzugsweise kann eine Schachttüre aber auch durch einen Servicemonteur geöffnet werden, wenn dieser hierzu ein Spezialwerkzeug verwendet. Es kann also davon ausgegangen werden, dass eine Schachttüre nur offen steht oder geöffnet werden kann, wenn sich entweder eine Aufzugkabine hinter der entsprechenden Schachttüre befindet, oder wenn ein entsprechend geschulter Servicemonteur anwesend ist.In an elevator system according to the invention, the shaft doors can only be opened by the car if it is located on a corresponding floor behind the shaft doors. Preferably, however, a shaft door can also be opened by a service technician when using a special tool for this purpose. It can therefore be assumed that a shaft door is only open or can be opened when either an elevator car is behind the corresponding shaft door, or when a suitably trained service technician is present.

Mit der erfindungsgemässem Vorrichtung kann nicht überwacht werden, ob ein Servicemonteur oder eine andere Person die Schachttüre mit einem Spezialwerkzeug geöffnet hat. Bei bisherigen Systemen wurde durch Öffnen des Schachttürriegels ein Kontakt geöffnet und der Sicherheitskreis unterbrochen. Ein solcher Kontakt ist gemäss Erfindung nicht mehr vorgesehen.With the device according to the invention, it can not be monitored whether a service engineer or another person has opened the shaft door with a special tool. at Previous systems, a contact was opened by opening the shaft door bolt and interrupted the safety circuit. Such a contact is no longer provided according to the invention.

In einer weiteren Ausführungsform der Erfindung kann man einen Sensor einsetzen, der es ermöglicht, zu überwachen, ob eine Schachttüre mit einem Spezialwerkzeug geöffnet wurde. Ein derartiger Sensor ist weniger beansprucht, da eine Öffnung mit Spezialwerkzeug nur selten erfolgt. Ausserdem kann ein solcher Sensor so ausgeführt werden, dass er weniger anfällig ist gegen Verbiegen, Verschieben, Abnutzung, usw.In a further embodiment of the invention, it is possible to use a sensor which makes it possible to monitor whether a shaft door has been opened with a special tool. Such a sensor is less stressed, since an opening with special tools is rare. Moreover, such a sensor can be made to be less susceptible to bending, shifting, wear, etc.

Claims (10)

  1. Lift installation comprising a lift cage (12; 62) which has a cage door (13; 53) and is arranged in a lift shaft (10) to be vertically movable, at least one shaft door (11; 41; 51) by which access to the lift shaft (10) is closable and which has at least one door leaf, an automatically locking shaft door lock (18; 28; 78) for locking the door leaf of the shaft door (11; 41; 51) when the door leaf is in its closed setting, wherein the shaft door leaf (18; 28; 78) can be unlocked by the lift cage (12; 62), and a lift control (16), characterised in that the lift installation comprises contactless sensor means (15, 19; 54, 55, 59) enabling recognition from the lift cage (12; 62) whether the shaft door lock (18; 28; 78) and the door leaf of the shaft door (11; 41; 51) are disposed in the correct locked setting thereof, wherein this sensor means (15, 19; 54, 55, 59) is connectible with the lift control (16) and/or with a separate safety monitoring system.
  2. Lift installation according to claim 1, characterised in that a shaft door lock securing means (64) is provided, which serves the purpose of mechanically securing the shaft door lock (18; 28; 78) in order to prevent opening of the shaft door (11; 41; 51), wherein the shaft door lock securing means (64) is mechanically or electromagnetically activatable from the lift cage (12; 62).
  3. Lift installation according to claim 1 or 2, characterised in that the contactless sensor means comprises an active sensor part (15) and a passive sensor part (19), wherein the active sensor part (15) is arranged at the lift cage (12; 62), preferably at the cage door (13; 53), and the passive sensor part (19) is arranged in the region of the shaft door lock (18; 28; 78) to be monitored.
  4. Lift installation according to claim 3, characterised in that the active sensor part (15) can interact with the passive sensor part (19) as soon as the lift cage (12; 62) stops behind the shaft door (11; 41; 51) to be monitored and the door leaf of the shaft door (11; 41; 51) together with the shaft door lock (18; 28; 78) to be monitored are disposed in the correct locked setting thereof.
  5. Lift installation according to claim 3 or 4, characterised in that the active sensor part (15) can transiently interact with the passive sensor part (19) when the lift cage (12; 62) moves past a shaft door (11; 41; 51) to be monitored and the door leaf of the shaft door (11; 41; 51) together with the shaft door lock (18; 28; 78) to be monitored are disposed in the correct locked setting thereof.
  6. Monitoring system for a lift installation, wherein the lift installation comprises a lift cage (12; 62), which is arranged in the lift shaft (10) and is vertically movable, with a cage door (13; 53), the lift installation comprises at least one shaft door (11; 41; 51) with at least one door leaf, by which access to the lift shaft (10) is closable, the shaft door (11; 41; 51) comprises an automatically locking shaft door lock (18; 28; 78) for locking the door leaf in a closed setting, the shaft door lock can be unlocked by the lift cage (12; 62) and the lift installation includes a lift control (16), characterised in that the monitoring system comprises a contactless sensor means (15, 19; 54, 55, 59) enabling recognition from the lift cage (12; 62) whether the shaft door lock (18; 28; 78) and the door leaf of the shaft door (11; 41; 51) are disposed in the correct locked setting thereof, wherein this sensor means (15, 19; 54, 55, 59) is connectible with the lift control (16) and/or with a separate safety monitoring system.
  7. Monitoring system according to claim 6, characterised in that the contactless sensor means comprises an active sensor part (15) and a passive sensor part (19), wherein the active sensor part (15) is fastenable to the lift cage (12; 62), preferably to the cage door (13; 53), and the passive sensor part (19) is fastenable in the region of the shaft door lock (18; 28; 78) to be monitored.
  8. Monitoring system according to claim 6, characterised in that the active sensor part (15) and the passive sensor part (19) are so designed that the active sensor part (15) can interact with the passive sensor part (19) as soon as the lift cage (12; 62) stops behind the shaft door (11; 41; 51) to be monitored, the door leaf of the shaft door (11; 41; 51) is disposed in its closed setting and the shaft door lock 18; 28; 78) to be monitored is in locked setting.
  9. Shaft door lock (18; 28; 78) for use in a lift installation, wherein the lift installation comprises a lift cage (12; 62), which is arranged in the lift shaft (10) and is vertically movable, with a cage door (13; 53), the lift installation comprises at least one shaft door (11; 41; 51) with at least one door leaf, by which access to the lift shaft (10) is closable, the shaft door lock (18; 28; 78) is an automatically locking shaft door lock (18; 28; 78) for locking the door leaf of the shaft door (11; 41; 51) and is so designed that it can be mechanically unlocked by the lift cage (12; 62) and the lift installation includes a lift control (16), characterised in that the shaft door lock (18; 28; 78) is provided with a passive sensor means (19) which is designed for the purpose of contactlessly interacting with an active sensor part (15) when the lift cage (12; 62) is disposed in the region of the shaft door (11; 41; 51).
  10. Shaft door lock (18; 28; 78) according to claim 9, characterised in that a shaft door lock securing means (64) is provided at the shaft door lock (18; 28; 78) and serves the purpose of mechanically securing the shaft door lock (18; 28; 78) in order to prevent opening of the shaft door (11; 41; 51), wherein the shaft door lock securing means (64) is mechanically or electromagnetically activatable from the lift cage (12; 62).
EP03744705A 2002-03-27 2003-03-21 Shaft monitoring system for an elevator Expired - Lifetime EP1490284B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03744705A EP1490284B1 (en) 2002-03-27 2003-03-21 Shaft monitoring system for an elevator

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EP02405242 2002-03-27
EP02405242 2002-03-27
EP03744705A EP1490284B1 (en) 2002-03-27 2003-03-21 Shaft monitoring system for an elevator
PCT/CH2003/000182 WO2003080495A1 (en) 2002-03-27 2003-03-21 Shaft monitoring system for an elevator

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EP1490284A1 EP1490284A1 (en) 2004-12-29
EP1490284B1 true EP1490284B1 (en) 2007-05-23

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US (1) US7350625B2 (en)
EP (1) EP1490284B1 (en)
JP (1) JP4358638B2 (en)
CN (1) CN100522786C (en)
AT (1) ATE362894T1 (en)
AU (1) AU2003209906B2 (en)
BR (1) BR0308715B1 (en)
CA (1) CA2478078C (en)
DE (1) DE50307325D1 (en)
DK (1) DK1490284T3 (en)
ES (1) ES2286449T3 (en)
HK (1) HK1072045A1 (en)
MX (1) MXPA04009366A (en)
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JP4358638B2 (en) 2009-11-04
DK1490284T3 (en) 2007-09-10
PT1490284E (en) 2007-08-13
CA2478078A1 (en) 2003-10-02
US20050034931A1 (en) 2005-02-17
CA2478078C (en) 2011-05-17
JP2006501112A (en) 2006-01-12
ATE362894T1 (en) 2007-06-15
CN100522786C (en) 2009-08-05
BR0308715A (en) 2005-01-04
AU2003209906A1 (en) 2003-10-08
MXPA04009366A (en) 2005-07-05
ES2286449T3 (en) 2007-12-01
DE50307325D1 (en) 2007-07-05
CN1642841A (en) 2005-07-20
HK1072045A1 (en) 2005-08-12
BR0308715B1 (en) 2012-04-17
ZA200407181B (en) 2006-02-22
NO20044610L (en) 2004-12-22
US7350625B2 (en) 2008-04-01
WO2003080495A1 (en) 2003-10-02
AU2003209906B2 (en) 2008-05-08
EP1490284A1 (en) 2004-12-29

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