EP3328769B1 - Locking system for cabin doors - Google Patents
Locking system for cabin doors Download PDFInfo
- Publication number
- EP3328769B1 EP3328769B1 EP16738804.0A EP16738804A EP3328769B1 EP 3328769 B1 EP3328769 B1 EP 3328769B1 EP 16738804 A EP16738804 A EP 16738804A EP 3328769 B1 EP3328769 B1 EP 3328769B1
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- EP
- European Patent Office
- Prior art keywords
- lift
- locking
- cabin
- control device
- locking system
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- 238000001514 detection method Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
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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
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
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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
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
Definitions
- the invention relates to a locking system for locking a car door of an elevator car of an elevator installation, in which elevator installation the elevator car can be moved along an elevator track with stops and associated stop zones.
- the car door can be opened and closed by means of a door drive and can be locked or unlocked in its closed position by means of a controllable locking mechanism, with the locking mechanism of the locking system only being able to be brought into the unlocking position if at least the condition is met that the elevator car is in the area of a stop zone .
- the invention relates to an elevator system with such a locking system.
- Known elevators have a locking device for the car door, which locks the car doors when the elevator car is in motion.
- Stationary magnets are provided in the elevator shaft in the area of the floors, which indicate when a stop zone has been reached and can be detected by a suitable sensor system arranged on the elevator car.
- the control device activates the locking device if the control device intends to stop at the corresponding stop.
- the locking device is brought into an open position and the car doors can be opened by the door drive.
- Such a control device with bus stop zone sensors is from U.S. 8,960,372 B2 famous.
- the attachment of the magnets in the elevator shaft is associated with a very high material and assembly effort, especially in tall buildings.
- a locking system for locking a car door of an elevator car according to the preamble of claim 1 is in document WO2005/102900A1 disclosed.
- the object of the present invention is to reduce the outlay on materials and assembly.
- the elevator car can be moved along an elevator track with stops and associated stop zones.
- the locking system comprises a locking mechanism that can be brought into a locking position and into an unlocking position, with the cabin door being blocked in its closed position in the locking position of the locking mechanism and being openable in the unlocking position of the locking mechanism, an actuator by which the locking mechanism can either be moved to its locking position or can be brought into its unlocked position, and a control device which causes the actuator to bring the locking mechanism into its unlocked position if at least the condition is met that the elevator car is in the area of a stop zone.
- the locking system is characterized in that the elevator system includes a position detection device that continuously detects a position of the elevator car in relation to the elevator track and transmits the position to the control device, and the control device continuously detects whether the condition is met that the elevator car is in the area a stop zone by comparing the position of the elevator car transmitted by the position detection device with stored position limit values of the stop zones.
- the floor zones are detected by comparing programmed floor zone limit values with measured car position values. If a stop zone is determined during the comparison, the control device activates the locking device.
- magnets that indicate the bus stop zones can be omitted in an advantageous manner, which reduces the material and assembly costs, especially in tall buildings.
- the same position detection device is used to detect the position of the elevator car, which is also used to detect the position of the elevator car as an input for a travel controller of the elevator car.
- the position detection device develops a particularly efficient mode of operation, since the signals made available by the position detection device can be used multiple times.
- the position limit values of the stop zones can preferably be set or changed by means of a programming device. This results in a particularly user-friendly handling of the locking system. For example, the time at which the door opens can also be reprogrammed at a later point in time without the need for costly adjustments to the hardware, in particular repositioning the magnets at the bus stop zones. In this case, for example, an adaptation of travel parameters, such as the speed at which the elevator car enters a stop zone, could be taken into account in a simple manner as part of a modernization of the elevator system.
- the position detection device includes a measuring tape with a coding that extends over the entire length of the elevator track, and a detector that is attached to the elevator car and that detects the coding of the measuring tape. This results in the possibility of continuously determining the position of the elevator car.
- position detection devices can also be used, which can differ in their mode of operation.
- laser position measuring devices ultrasonic position measuring devices, optical position detection devices, and position detection devices that are based on discrete measurement methods can be used.
- the coding of the measuring tape is preferably designed in such a way that absolute values of the position of the elevator car can be detected by the detector or by the control device.
- An absolute value is understood to be a value derived from a code, which is unique in the entire area of the elevator track and which enables a position of the elevator car to be determined directly and unambiguously.
- the coding of the measuring tape is designed as so-called Manchester coding, in which the absolute position of the detector and thus of the elevator car can be derived from the simultaneous detection of several consecutive code marks, each with one of two detectable different properties. This creates the possibility of a position of the elevator car can be read off the measuring tape particularly reliably and robustly.
- a measuring tape coded in this way is used in particular in the area of fast-moving elevator cars.
- the invention is not dependent on the use of a single type of coding. Of course, deviating from this, other types of coding, such as binary coding, can also be used.
- the measuring tape is preferably a steel tape which has a coding in the form of magnetic code marks which are formed by zones of the steel tape which are magnetized as the north pole or south pole.
- the advantage of designing the measuring tape as a steel tape is that it can be reliably and easily tensioned along the elevator track.
- the actuator by which the locking mechanism can be brought either into its locking position or into its unlocking position, preferably comprises an electrically controllable lifting magnet.
- the lifting magnet is designed as a bistable lifting magnet.
- the control device preferably causes the actuator to bring the locking mechanism into its unlocking position if at least the additional condition is met that the elevator car is scheduled to stop at the next stop in the direction of travel.
- This additional condition ensures that the locking system does not cause the actuator to be brought into its unlocked position when the elevator car is simply driving through a stop or assigned stop zone. The cabin door thus remains reliably locked even when the vehicle is driven past.
- the control device preferably causes the actuator to bring the locking mechanism into its unlocked position if at least the additional condition is met that the travel speed of the elevator car has reduced to a defined maximum value.
- the defined maximum value represents a speed value that is lower than the nominal speed of the elevator car Normal operation and which clearly indicates an intentional stop at a stop.
- the control device preferably causes the actuator to bring the locking mechanism into its locking position when at least the conditions are met that a travel command is pending for the elevator car and that the car door is closed. This prevents the elevator car from continuing to travel when the elevator cars are open and ensures the safety of the elevator installation.
- the control device is preferably designed in such a way that when defined safety conditions are present, the unlocking position of the locking mechanism can be brought about by a person by means of at least one unlocking switch from at least one point in the elevator system.
- safety conditions exist, for example, during the evacuation of passengers locked in the elevator car when an authorized person puts the elevator installation into an evacuation mode. The authorized person can unlock the car door easily and safely and free the trapped passengers from the elevator car.
- At least one emergency power supply in the elevator system which ensures that, in the event of a power failure, the locking mechanism can be brought into its unlocked position by the elevator controller or by means of the at least one unlocking switch. This ensures that passengers do not remain trapped in the elevator car in the event of a power failure.
- FIG 1 shows an elevator system 10, which has an elevator car 11, which can be moved in a non-illustrated elevator shaft in the vertical direction along an elevator track.
- the elevator system 10 has, for example, car guide rails (not shown here), along which the elevator car 11 is guided, and a suspension element from which the elevator car 11 is suspended.
- the elevator installation 10 includes a drive which is in operative connection with the suspension element and a counterweight which at least partially compensates for the weight of the elevator car 11 via the suspension element. Both the drive and the counterweight are not shown here.
- the elevator car 11 has a car door, which here includes two door leaves 12a, 12b, which can be moved by means of a door drive 13.
- the door drive 13 is equipped with a drive means 14 which is designed, for example, as a V-belt.
- the drive means 14 runs around a drive roller of the door drive 13 and a deflection roller 23, with the drive means 14 forming a closed loop with a first run 14.1 and a second run 14.2, which are each delimited by the drive roller and the deflection roller 23.
- the first door panel 12a and the second door panel 12b are each connected to the first run 14.1 and to the second run 14.2, so that a rotational movement of the traction roller of the door drive 13 converts the first door panel 12a and the second door panel 12b into an opening or closing movement in opposite directions the drive means 14 converts.
- a position detection unit 27 is arranged in the elevator shaft and is used to detect a car position.
- the position detection device 27 shown here includes a measuring tape 19 which extends along the elevator track, a detector which is arranged on the elevator car 11 and is aligned with the measuring tape 19 for detecting the coding.
- the position detection device 27 includes an evaluation unit 21, which converts the detected coding into a position.
- the measuring tape 19 is preferably designed as a steel tape.
- the measuring tape 19 represents a carrier of a so-called Manchester coding, the Manchester coding resulting from a pseudo-sequence of as North pole or south pole magnetized code marks results.
- the detector 20 is preferably designed as a Hall sensor that is suitable for detecting the magnetic code marks.
- the detected code marks are finally transmitted to the evaluation unit 21, which uses them to calculate a position.
- a position detection unit based on Manchester coding is, for example, in WO 03/011733 A1 described.
- a locking mechanism 28 is provided above the first door panel 12a, which includes a locking bar 15, a pivot bearing 18 and a locking cam 17.
- the latch 15 which is L-shaped here, is pivotably mounted on the pivot bearing 18 .
- the locking cam 17 is arranged on the first door panel 12a.
- the locking mechanism 28 is connected to an actuator 16 .
- the locking mechanism 28 can be brought into a locking position or into an unlocking position by means of the actuator 16 .
- the latch 15 is pivoted about the pivot bearing 18 by the actuator 16 .
- the locking cam 17 is aligned with respect to the position of the bolt 15 in such a way that it interacts with the bolt 15, the bolt 15 forming a stop for the locking cam 17 in the locking position of the bolt mechanism 28 and the locking cam 17 or the first door leaf 12a directly and the second door leaf 12b indirectly prevents an opening movement via the drive means 14.
- the bolt 15 releases the locking cam 17 or the two door leaves 12a, 12b for an opening movement, so that the door leaves 12a, 12b can be moved by the door drive 13.
- a control device 22 which is connected to the position detection device 27 , is provided for controlling the actuator 16 and the door drive 13 .
- the control device 22 is preferably integrated into a door drive control, which can also include other control functions. The structure and the mode of operation of the control device 22 are described below with reference to FIG figure 2 described.
- FIG. 2 shows a block diagram of the control device 22.
- the control device 22 comprises a comparison device 24, a door zone data memory 26 and an actuator driver 25.1 and a door drive driver 25.2.
- the position detection unit 27 transmits the current position of the elevator car 11 to the control device 22.
- the comparison device 24 compares the transmitted position of the elevator car 11 with position limit values of the stop zones, which are stored in the door zone data memory 26 and are made available to the comparison device 24 for the comparison.
- the position limit values of the stop zones can already be programmed into the door zone data memory 26 at the factory or can also be stored in the door zone data memory 26 only when the elevator installation 10 is installed.
- the output of the comparison device 24 is connected to an actuator driver 25.1 and a door drive driver 25.2, which each control the actuator 16 and the door drive 13, respectively.
- figure 3 shows a flow chart of the control device 22. If the comparison device 24 in the comparison of the current position of the elevator car 11 with a stored position limit value of a stop zone agrees or is between two position limit values delimiting the stop zone, a first condition for the release of the locking mechanism 28 is for a door opening Fulfills.
- a further condition for the release of the locking mechanism 28 is preferably met if the control device 22 has data at its disposal that a stop is planned at the stop assigned to the stop zone. Data on planned stops at a stop are stored in the control device 22 on the basis of stop requests.
- Stop requests of this kind are generated, for example, via car call buttons at the stops and/or via destination input buttons in the elevator car 11 .
- the car call buttons and/or destination input buttons are connected to an elevator control.
- the elevator control plans the journeys of the elevator car 10 on the basis of these stop requests and issues corresponding travel commands to the drive.
- the data on planned stops are preferably made available to the control device 22 by the elevator control.
- a further condition for releasing the locking mechanism 28 is also met if the control device 22 has data that the travel speed of the elevator car 11 has reduced to a defined maximum value.
- Data on the speed of the elevator car 11 can be determined in the position determination unit 27 by deriving the position of the elevator car 11 over time and made available to the control device 22 . In this case, the current travel speed of the elevator car 11 is compared with a defined maximum value stored in the control device 22 .
- the actuator 16 is controlled by the actuator driver 25.1 in such a way that the bolt 15 is brought into its unlocked position.
- the cabin door is thus released for an opening movement.
- the door drive driver 25.2 controls the door drive 13 upon reaching or shortly before reaching the stop in such a way that the door leaves 12a, 12b of the car door are opened by the door drive 13.
- the actuator driver 25.1 also causes the actuator 16 to bring the bolt 15 back into its locking position if the control device 22 has at least one pending drive command to serve a further stop request and if the door drive driver 25.2 has previously caused the door drive 13 to close the car door shut down.
- the elevator installation 10 has an unlocking switch.
- An authorized person can bring the locking mechanism 28 into an unlocked position via the unlocking switch.
- Predefined safety conditions must be observed so that the locking mechanism 28 can be brought into its unlocked position via the unlocking switch.
- the elevator system 10 is to be brought into a separate operating mode in which specific functions that are available in a normal operating mode are prohibited.
- the authorized person can set the elevator installation 10 to an evacuation mode, in which a car journey is prevented and the unlocking switch is activated.
- the authorized person can free trapped passengers from the elevator car 11 .
- control device 22 is connected to the unlocking switch and has an input interface at which the authorized person can change the operating mode by entering a command or actuating a switch.
- the input interface and the unlocking switch can be integrated, for example, in physical proximity to the control device 22 or the elevator control or possibly even in a corresponding housing of the control device 22 or the elevator control.
- the input interface and that of the unlocking switch can in principle also be provided at other points in the elevator system 10, such as a shaft door frame, a separately provided machine room, which can be accessed by the authorized person without great effort.
- the elevator system 10 can have an emergency power supply, which supplies at least the control unit 22 and the actuator 16 with energy even in the event of a power failure.
- the position detection unit 27, the door drive 13 and/or the unlocking switch are also fed by the emergency power supply.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Elevator Door Apparatuses (AREA)
- Lock And Its Accessories (AREA)
Description
Die Erfindung betrifft ein Verriegelungssystem zum Verriegeln einer Kabinentüre einer Aufzugkabine einer Aufzugsanlage, in welcher Aufzugsanlage die Aufzugkabine entlang einer Aufzugfahrbahn mit Haltestellen und zugeordneten Haltestellenzonen verfahrbar ist. Die Kabinentüre ist mittels eines Türantriebes öffenbar und schliessbar und mittels eines steuerbaren Riegelmechanismus in ihrer Schliessstellung verriegelbar bzw. entriegelbar, wobei der Riegelmechanismus des Verriegelungssystems nur dann in Entriegelungsstellung bringbar ist, wenn mindestens die Bedingung erfüllt ist, dass die Aufzugkabine sich im Bereich einer Haltestellenzone befindet. Des Weiteren betrifft die Erfindung eine Aufzugsanlage mit einem solchen Verriegelungssystem.The invention relates to a locking system for locking a car door of an elevator car of an elevator installation, in which elevator installation the elevator car can be moved along an elevator track with stops and associated stop zones. The car door can be opened and closed by means of a door drive and can be locked or unlocked in its closed position by means of a controllable locking mechanism, with the locking mechanism of the locking system only being able to be brought into the unlocking position if at least the condition is met that the elevator car is in the area of a stop zone . Furthermore, the invention relates to an elevator system with such a locking system.
Bekannte Aufzüge haben eine Verriegelungseinrichtung für die Kabinentür, die im Fahrzustand der Aufzugskabine die Kabinentüren verriegelt. Im Bereich der Stockwerke sind im Aufzugsschacht ortsfeste Magnete vorgesehen, die das Erreichen einer Haltestellenzone anzeigen und von einer geeigneten Sensorik, die an der Aufzugskabine angeordnet ist, erfassbar sind. Sobald die Sensorik eine Haltestellenzone anhand der erfassten Magnete feststellt und diese Information der Steuereinrichtung zur Verfügung stellt, steuert die Steuereinrichtung die Verriegelungseinrichtung an, sofern die Steuereinrichtung einen Halt an der entsprechenden Haltestellte beabsichtigt. In der Folge wird die Verriegelungseinrichtung in eine Öffnungsstellung gebracht und die Kabinentüren lassen sich durch den Türantrieb öffnen. Eine derartige Steuereinrichtung mit Haltestellenzonensensoren ist aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, den Material- und Montageaufwand zu reduzieren.The object of the present invention is to reduce the outlay on materials and assembly.
Zur Lösung dieser Aufgabe wird ein Verriegelungssystem zum Verriegeln und Entriegeln einer Kabinentüre einer Aufzugkabine einer Aufzugsanlage vorgeschlagen.To solve this problem, a locking system for locking and unlocking a car door of an elevator car of an elevator system is proposed.
In dieser Aufzugsanlage ist die Aufzugkabine entlang einer Aufzugfahrbahn mit Haltestellen und zugeordneten Haltestellenzonen verfahrbar. Das Verriegelungssystem umfasst einen Riegelmechanismus, der in eine Verriegelungsstellung und in eine Entriegelungsstellung bringbar ist, wobei die Kabinentüre in der Verriegelungsstellung des Riegelmechanismus in ihrer Geschlossenstellung blockiert ist und in der Entriegelungsstellung des Riegelmechanismus öffenbar ist, einen Aktuator, durch den der Riegelmechanismus entweder in seine Verriegelungsstellung oder in seine Entriegelungsstellung bringbar ist, und eine Steuereinrichtung, die den Aktuator veranlasst, den Riegelmechanismus in seine Entriegelungsstellung zu bringen, wenn mindestens die Bedingung erfüllt ist, dass die Aufzugkabine sich im Bereich einer Haltestellenzone befindet.In this elevator system, the elevator car can be moved along an elevator track with stops and associated stop zones. The locking system comprises a locking mechanism that can be brought into a locking position and into an unlocking position, with the cabin door being blocked in its closed position in the locking position of the locking mechanism and being openable in the unlocking position of the locking mechanism, an actuator by which the locking mechanism can either be moved to its locking position or can be brought into its unlocked position, and a control device which causes the actuator to bring the locking mechanism into its unlocked position if at least the condition is met that the elevator car is in the area of a stop zone.
Das Verriegelungssystem zeichnet sich dadurch aus, dass die Aufzugsanlage eine Positionserfassungseinrichtung umfasst, die eine Position der Aufzugkabine bezüglich der Aufzugsfahrbahn kontinuierlich erfasst und die Position an die Steuereinrichtung übermittelt, und die Steuereinrichtung kontinuierlich detektiert, ob die Bedingung erfüllt ist, dass sich die Aufzugkabine im Bereich einer Haltestellenzone befindet, indem sie die von der Positionserfassungseinrichtung übermittelte Position der Aufzugkabine mit gespeicherten Positionsgrenzwerten der Haltestellenzonen vergleicht.The locking system is characterized in that the elevator system includes a position detection device that continuously detects a position of the elevator car in relation to the elevator track and transmits the position to the control device, and the control device continuously detects whether the condition is met that the elevator car is in the area a stop zone by comparing the position of the elevator car transmitted by the position detection device with stored position limit values of the stop zones.
Bei dem Verriegelungssystem werden die Haltestellenzonen mittels eines Vergleiches von programmierten Haltestellenzonen-Grenzwerten mit gemessenen Kabinenpositionswerten erfasst. Wird bei dem Vergleich eine Haltestellenzone festgestellt, steuert die Steuereinrichtung die Verriegelungseinrichtung an. Hierdurch können auf vorteilhafte Weise Magnete, die die Haltestellenzonen anzeigen, entfallen, wodurch der Material- und Montageaufwand insbesondere bei hohen Gebäuden reduziert wird.In the interlocking system, the floor zones are detected by comparing programmed floor zone limit values with measured car position values. If a stop zone is determined during the comparison, the control device activates the locking device. As a result, magnets that indicate the bus stop zones can be omitted in an advantageous manner, which reduces the material and assembly costs, especially in tall buildings.
Vorzugsweise dient zur Erfassung der Position der Aufzugkabine dieselbe Positionserfassungseinrichtung, die auch zur Erfassung der Position der Aufzugkabine als Input für eine Fahrsteuerung der Aufzugkabine dient. Hierbei entfaltet die Positionserfassungseinrichtung eine besonders effiziente Wirkungsweise, da die von der Positionserfassungseinrichtung zur Verfügung gestellten Signale mehrfach nutzbar sind.Preferably, the same position detection device is used to detect the position of the elevator car, which is also used to detect the position of the elevator car as an input for a travel controller of the elevator car. In this case, the position detection device develops a particularly efficient mode of operation, since the signals made available by the position detection device can be used multiple times.
Vorzugsweise sind die Positionsgrenzwerte der Haltestellenzonen mittels einer Programmiereinrichtung einstellbar bzw. veränderbar. Hierdurch ergibt sich eine besonders benutzerfreundliche Handhabe des Verriegelungssystems. So kann beispielsweise der Zeitpunkt der Türöffnung auch zu einem späteren Zeitpunkt ohne eine aufwändige Anpassung der Hardware, insbesondere einer Neupositionierung der Magnete an den Haltestellenzonen, neu programmiert werden. Dabei könnte beispielsweise einer Anpassung von Fahrparametern, wie die Einfahrgeschwindigkeit der Aufzugskabine in eine Haltestellenzone, im Rahmen einer Modernisierung der Aufzugsanlage auf einfache Weise Rechnung getragen werden.The position limit values of the stop zones can preferably be set or changed by means of a programming device. This results in a particularly user-friendly handling of the locking system. For example, the time at which the door opens can also be reprogrammed at a later point in time without the need for costly adjustments to the hardware, in particular repositioning the magnets at the bus stop zones. In this case, for example, an adaptation of travel parameters, such as the speed at which the elevator car enters a stop zone, could be taken into account in a simple manner as part of a modernization of the elevator system.
Vorzugsweise umfasst die Positionserfassungseinrichtung ein sich über die gesamte Länge der Aufzugsfahrbahn erstreckendes Messband mit einer Codierung, sowie einen an der Aufzugkabine angebrachten Detektor, der die Codierung des Messbands erfasst. Hierbei ergibt sich die Möglichkeit die Position der Aufzugskabine kontinuierlich zu bestimmen.Preferably, the position detection device includes a measuring tape with a coding that extends over the entire length of the elevator track, and a detector that is attached to the elevator car and that detects the coding of the measuring tape. This results in the possibility of continuously determining the position of the elevator car.
Selbstverständlich sind auch andersartige Positionserfassungseinrichtungen verwendbar, die sich in Ihrer Wirkungsweise unterschieden können. So sind beispielsweise Laserpositionsmessgeräte, Ultraschallpositionsmessgeräte, optische Positionserfassungseinrichtungen, sowie Positionserfassungseinrichtungen, die auf diskreten Messverfahren basieren einsetzbar.Of course, other types of position detection devices can also be used, which can differ in their mode of operation. For example, laser position measuring devices, ultrasonic position measuring devices, optical position detection devices, and position detection devices that are based on discrete measurement methods can be used.
Vorzugsweise ist die Codierung des Messbands derart ausgestaltet, dass Absolutwerte der Position der Aufzugkabine durch den Detektor bzw. durch die Steuereinrichtung erfassbar sind. Unter Absolutwert wird ein aus einem Code abgeleiteter Wert verstanden, der im gesamten Bereich der Aufzugsfahrbahn einmalig ist und der eine eindeutige direkte Eruierung einer Position der Aufzugskabine ermöglicht.The coding of the measuring tape is preferably designed in such a way that absolute values of the position of the elevator car can be detected by the detector or by the control device. An absolute value is understood to be a value derived from a code, which is unique in the entire area of the elevator track and which enables a position of the elevator car to be determined directly and unambiguously.
In einer besonders bevorzugten Ausführung ist die Codierung des Messbands als so genannte Manchester-Codierung ausgebildet, bei der aus der gleichzeitigen Erfassung von mehreren aufeinander folgenden Codemarken mit jeweils einer von zwei detektierbaren unterschiedlichen Eigenschaften die Absolutposition des Detektors und damit der Aufzugkabine ableitbar ist. Hierbei ergibt sich die Möglichkeit eine Position der Aufzugskabine besonders zuverlässig und robust vom Messband abzulesen. Ein derartig codiertes Messband wird besonders im Bereich schnellfahrender Aufzugskabinen eingesetzt. Die Erfindung ist aber nicht von der Anwendung einer einzelnen Codierungsart abhängig. Selbstredend können davon abweichend auch andere Codierungsarten, wie beispielsweise binäre Codierungen angewendet werden.In a particularly preferred embodiment, the coding of the measuring tape is designed as so-called Manchester coding, in which the absolute position of the detector and thus of the elevator car can be derived from the simultaneous detection of several consecutive code marks, each with one of two detectable different properties. This creates the possibility of a position of the elevator car can be read off the measuring tape particularly reliably and robustly. A measuring tape coded in this way is used in particular in the area of fast-moving elevator cars. However, the invention is not dependent on the use of a single type of coding. Of course, deviating from this, other types of coding, such as binary coding, can also be used.
Vorzugsweise ist das Messband ein Stahlband, das eine Codierung in Form von magnetischen Codemarken aufweist, die durch als Nordpol oder Südpol magnetisierte Zonen des Stahlbands gebildet sind. Der Vorteil von der Ausgestaltung des Messbands als Stahlband liegt in der zuverlässigen und einfachen Spannbarkeit entlang der Aufzugsfahrbahn.The measuring tape is preferably a steel tape which has a coding in the form of magnetic code marks which are formed by zones of the steel tape which are magnetized as the north pole or south pole. The advantage of designing the measuring tape as a steel tape is that it can be reliably and easily tensioned along the elevator track.
Vorzugsweise umfasst der Aktuator, durch den der Riegelmechanismus entweder in seine Verriegelungsstellung oder in seine Entriegelungsstellung bringbar ist, einen elektrisch steuerbaren Hubmagnet. In einer bevorzugten Ausführung ist der Hubmagnet als bi-stabiler Hubmagnet ausgebildet. Die Verwendung eines elektrischen ansteuerbaren Hubmagneten ergibt im Zusammenspiel mit dem Aktuator und der Steuereinrichtung eine besonders einfache automatisierte Schaltanordnung.The actuator, by which the locking mechanism can be brought either into its locking position or into its unlocking position, preferably comprises an electrically controllable lifting magnet. In a preferred embodiment, the lifting magnet is designed as a bistable lifting magnet. The use of an electrically controllable lifting magnet, in combination with the actuator and the control device, results in a particularly simple automated switching arrangement.
Vorzugsweise veranlasst die Steuereinrichtung den Aktuator, den Riegelmechanismus in seine Entriegelungsstellung zu bringen, wenn mindestens die zusätzliche Bedingung erfüllt ist, dass an der in Fahrtrichtung nächsten Haltestelle ein Halt der Aufzugkabine geplant ist. Mittels dieser zusätzlichen Bedingung ist gewährleistet, dass das Verriegelungssystem bei einer reinen Durchfahrt der Aufzugskabine an einer Haltestelle bzw. zugeordneten Haltestellenzone, den Aktuator nicht veranlasst in seine Entriegelungsstellung zu bringen. Somit bleibt die Kabinentüre auch bei einer Vorbeifahrt zuverlässig verriegelt.The control device preferably causes the actuator to bring the locking mechanism into its unlocking position if at least the additional condition is met that the elevator car is scheduled to stop at the next stop in the direction of travel. This additional condition ensures that the locking system does not cause the actuator to be brought into its unlocked position when the elevator car is simply driving through a stop or assigned stop zone. The cabin door thus remains reliably locked even when the vehicle is driven past.
Vorzugsweise veranlasst die Steuereinrichtung den Aktuator, den Riegelmechanismus in seine Entriegelungsstellung zu bringen, wenn mindestens die zusätzliche Bedingung erfüllt ist, dass sich die Fahrgeschwindigkeit der Aufzugkabine auf einen definierten Maximalwert verringert hat. Der definierte Maximalwert stellt einen Geschwindigkeitswert dar, der tiefer liegt als die Nominalgeschwindigkeit der Aufzugskabine im Normalbetrieb und der eindeutig auf ein beabsichtigtes Anhalten an einem Halt schliessen lässt.The control device preferably causes the actuator to bring the locking mechanism into its unlocked position if at least the additional condition is met that the travel speed of the elevator car has reduced to a defined maximum value. The defined maximum value represents a speed value that is lower than the nominal speed of the elevator car Normal operation and which clearly indicates an intentional stop at a stop.
Vorzugsweise veranlasst die Steuereinrichtung den Aktuator, den Riegelmechanismus in seine Verriegelungsstellung zu bringen, wenn mindestens die Bedingungen erfüllt sind, dass für die Aufzugkabine ein Fahrbefehl ansteht, und dass die Kabinentüre geschlossen ist. Damit ist eine Weiterfahrt der Aufzugskabine bei geöffneten Aufzugskabinen ausgeschlossen und die Sicherheit der Aufzugsanlage gewährleistet.The control device preferably causes the actuator to bring the locking mechanism into its locking position when at least the conditions are met that a travel command is pending for the elevator car and that the car door is closed. This prevents the elevator car from continuing to travel when the elevator cars are open and ensures the safety of the elevator installation.
Vorzugsweise ist die Steuereinrichtung so ausgelegt, dass bei Vorliegen definierter Sicherheitsbedingungen die Entriegelungsstellung des Riegelmechanismus mittels mindestens eines Entriegelungsschalters von mindestens einer Stelle in der Aufzugsanlage aus durch eine Person bewirkbar ist. Solche Sicherheitsbedingungen liegen beispielsweise bei der Evakuation von in der Aufzugskabine eingeschlossenen Fahrgästen dann vor, wenn eine befugte Person die Aufzugsanlage in einen Evakuationsmodus bringt. Hierbei kann die befugte Person die Kabinentüre einfach und sicher Entriegeln und die eingeschlossenen Fahrgäste aus der Aufzugskabine befreien.The control device is preferably designed in such a way that when defined safety conditions are present, the unlocking position of the locking mechanism can be brought about by a person by means of at least one unlocking switch from at least one point in the elevator system. Such safety conditions exist, for example, during the evacuation of passengers locked in the elevator car when an authorized person puts the elevator installation into an evacuation mode. The authorized person can unlock the car door easily and safely and free the trapped passengers from the elevator car.
Vorzugsweise ist in der Aufzugsanlage zumindest eine Notstromversorgung vorhanden, die bei einem Stromausfall gewährleistet, dass durch die Aufzugsteuerung oder mittels des mindestens einen Entriegelungsschalters der Riegelmechanismus in seine Entriegelungsstellung bringbar ist. Hierbei ist gewährleistet, dass Fahrgäste bei einem Stromausfall nicht in der Aufzugskabine eingeschlossen bleiben.There is preferably at least one emergency power supply in the elevator system, which ensures that, in the event of a power failure, the locking mechanism can be brought into its unlocked position by the elevator controller or by means of the at least one unlocking switch. This ensures that passengers do not remain trapped in the elevator car in the event of a power failure.
Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels beschrieben, das schematisch in der beigelegten Zeichnung dargestellt ist. Hierin zeigen:
- Figur 1
- eine schematische Darstellung einer Aufzugsanlage mit einem erfindungsgemässen Verriegelungssystem;
- Figur 2
- ein Blockschaltbild des erfindungsgemässen Verriegelungssystems; und
- Figur 3
- ein Flussdiagramm des erfindungsgemässen Verriegelungssystems.
- figure 1
- a schematic representation of an elevator installation with a locking system according to the invention;
- figure 2
- a block diagram of the locking system according to the invention; and
- figure 3
- a flowchart of the locking system according to the invention.
Die Aufzugskabine 11 weist eine Kabinentüre auf, die hier zwei Türblätter 12a, 12b umfasst, die mittels eines Türantriebs 13 verfahrbar sind. Dazu ist der Türantrieb 13 mit einem Antriebsmittel 14 ausgestattet, das beispielsweise als Keilriemen ausgebildet ist. Das Antriebsmittel 14 umläuft eine Treibrolle des Türantriebs 13 und eine Umlenkrolle 23, wobei das Antriebsmittel 14 eine geschlossene Schlaufe bildet mit einem ersten Trum 14.1 und einem zweiten Trum 14.2, die jeweils durch die Treibrolle und Umlenkrolle 23 abgegrenzt sind.The
Das erste Türblatt 12a und das zweite Türblatt 12b sind jeweils mit dem ersten Trum 14.1 und mit dem zweiten Trum 14.2 verbunden, so dass eine Drehbewegung der Treibrolle des Türantriebs 13 das erste Türblatt 12a und das zweite Türblatt 12b in eine gegenläufige Öffnungs- oder Schliessbewegung über das Antriebsmittel 14 umsetzt.The
In dem Aufzugsschacht ist eine Positionserfassungseinheit 27 angeordnet, die der Erfassung einer Kabinenposition dient. Die hier gezeigte Positionserfassungseinrichtung 27 umfasst ein Messband 19, das sich entlang der Aufzugsfahrbahn erstreckt, einen Detektor, der an der Aufzugskabine 11 angeordnet ist und zum Erfassen der Codierung auf das Messband 19 ausgerichtet ist. Des Weiteren umfasst die Positionserfassungseinrichtung 27 eine Auswerteeinheit 21, die die erfasste Codierung in eine Position umsetzt. Im gezeigten Ausführungsbeispiel ist das Messband 19 vorzugsweise als Stahlband ausgelegt. Das Messband 19 stellt ein Träger einer sogenannten Manchester-Codierung dar, wobei die sich Manchester-Codierung aus einer Pseudofolge von als Nordpol oder Südpol magnetisierten Codemarken ergibt. Der Detektor 20 ist vorzugsweise als Hallsensor konzipiert, der dazu geeignet ist, die magnetischen Codemarken zu erfassen. Die erfassten Codemarken werden schliesslich an die Auswerteeinheit 21 übermittelt, die daraus eine Position berechnet. Eine Positionserfassungseinheit, die auf einer Manchester-Codierung basiert ist beispielsweise in
Oberhalb des ersten Türblatts 12a ist ein Riegelmechanismus 28 vorgesehen, der einen Riegel 15, ein Drehlager 18 und eine Rastnocke 17 umfasst. Der hier L-förmig ausgestaltete Riegel 15 ist am Drehlager 18 schwenkbeweglich gelagert. Die Rastnocke 17 ist am ersten Türblatt 12a angeordnet. Der Riegelmechanismus 28 ist mit einem Aktuator 16 verbunden. Mittels des Aktuators 16 ist der Riegelmechanismus 28 in eine Verriegelungsstellung oder in eine Entriegelungsstellung bringbar. Hierbei wird der Riegel 15 durch den Aktuator 16 um das Drehlager 18 geschwenkt.A
Die Rastnocke 17 ist bezüglich der Lage des Riegels 15 dermassen ausgerichtet, dass diese mit dem Riegel 15 zusammenwirkt, wobei der Riegel 15 in der Verriegelungsstellung des Riegelmechanismus 28 für die Rastnocke 17 einen Anschlag bildet und die Rastnocke 17 bzw. das erste Türblatt 12a unmittelbar und das zweite Türblatt 12b über das Antriebsmittel 14 mittelbar an einer Öffnungsbewegung hindert. In der Entriegelungsstellung des Riegelmechanismus 28 gibt der Riegel 15 die Rastnocke 17 bzw. die beiden Türblätter 12a, 12b für eine Öffnungsbewegung frei, sodass die Türblätter 12a, 12b durch den Türantrieb 13 verfahrbar sind.The locking
Zur Ansteuerung des Aktuators 16 und des Türantriebs 13 ist eine Steuereinrichtung 22 vorgesehen, die mit der Positionserfassungseinrichtung 27 verbunden ist. Die Steuereinrichtung 22 ist vorzugsweise in eine Türantriebssteuerung integriert, die auch weitere Steuerfunktionen umfassen kann. Der Aufbau und die Funktionsweise der Steuereinrichtung 22 werden nachfolgend anhand von
Der Ausgang der Vergleichseinrichtung 24 ist mit je einem Aktuatortreiber 25.1 und einem Türantriebstreiber 25.2 verbunden, die jeweils den Aktuator 16 bzw. den Türantrieb 13 ansteuern.The output of the
Vorzugsweise ist eine weitere Bedingung für die Freigabe des Riegelmechanismus 28 erfüllt, wenn die Steuereinrichtung 22 über Daten verfügt, dass an der der Haltestellenzone zugeordneten Haltestelle ein Halt vorgesehen ist. Daten zu vorgesehenen Halten an einer Haltestelle werden in der Steuereinrichtung 22 aufgrund von Halteanfragen hinterlegt.A further condition for the release of the
Solche Halteanfragen werden beispielsweise über Kabinenruftasten an den Haltestellen und/oder über Zieleingabetasten in der Aufzugskabine 11 generiert. Dazu sind die Kabinenruftasten und/oder Zieleingabetasten mit einer Aufzugssteuerung verbunden. Die Aufzugssteuerung plant die Aufgrund dieser Halteanfragen Fahrten der Aufzugskabine 10 und gibt entsprechende Fahrbefehle an den Antrieb aus. Die Daten über vorgesehene Halte werden der Steuereinrichtung 22 vorzugsweise von der Aufzugssteuerung zur Verfügung gestellt.Stop requests of this kind are generated, for example, via car call buttons at the stops and/or via destination input buttons in the
Optional oder alternativ ist ferner eine weitere Bedingung für die Freigabe des Riegelmechanismus 28 erfüllt, wenn die Steuereinrichtung 22 über Daten verfügt, dass die Fahrgeschwindigkeit der Aufzugskabine 11 auf einen definierten Maximalwert verringert hat. Daten zur Geschwindigkeit der Aufzugskabine 11 können in der Positionsermittlungseinheit 27 durch eine Ableitung der Position der Aufzugskabine 11 über die Zeit ermittelt werden und der Steuereinrichtung 22 zur Verfügung gestellt werden. Hierbei wird die aktuelle Fahrgeschwindigkeit der Aufzugskabine 11 mit einem in der Steuereinrichtung 22 hinterlegten definierten Maximalwert verglichen.Optionally or alternatively, a further condition for releasing the
Bei Erfüllung zumindest einer der vorgenannten Bedingungen, wird der Aktuator 16 vom Aktuatortreiber 25.1 dermassen angesteuert, dass der Riegel 15 in seine Entriegelungsstellung gebracht wird. Die Kabinentüre ist also für eine Öffnungsbewegung freigegeben. Ferner steuert der Türantriebstreiber 25.2 bei Erreichen oder kurz vor Erreichen der Haltestelle den Türantrieb 13 dermassen an, dass die Türblätter 12a, 12b der Kabinentüre durch den Türantrieb 13 geöffnet werden.If at least one of the aforementioned conditions is met, the
Der Aktuatortreiber 25.1 veranlasst ferner den Aktuator 16 den Riegel 15 wiederum in seine Verriegelungsstellung zu bringen, wenn die Steuereinrichtung 22 zumindest über einen anstehenden Fahrbefehl verfügt, um eine weitere Halteanfrage zu bedienen und wenn zuvor der Türantriebstreiber 25.2 den Türantrieb 13 veranlasst hat, die Kabinentüre zu schliessen.The actuator driver 25.1 also causes the
Optional verfügt die Aufzugsanlage 10 über einen Entriegelungsschalter. Über den Entriegelungsschalter kann eine dazu befugte Person den Riegelmechanismus 28 in eine Entriegelungsstellung bringen. Damit der Riegelmechanismus 28 über den Entriegelungsschalter in seine Entriegelungsstellung gebracht werden kann sind vordefinierte Sicherheitsbedingungen einzuhalten. So ist die Aufzugsanlage 10 beispielsweise in einen gesonderten Betriebsmodus zu bringen, in welchem bestimmte Funktionen, die in einem Normalbetriebsmodus verfügbar sind, untersagt sind. So kann die befugte Person beispielsweise die Aufzugsanlage 10 in einen Evakuationsmodus setzen, in dem eine Kabinenfahrt verhindert ist und der Entriegelungsschalter aktiviert ist. Hierbei kann die befugte Person eingeschlossene Fahrgäste aus der Aufzugskabine 11 befreien.Optionally, the
Die Steuereinrichtung 22 ist dazu mit dem Entriegelungsschalter verbunden und verfügt über eine Eingabeschnittstelle, an dem die befugte Person den Betriebsmodus mittels Eingabe eines Befehls oder einer Schalterbetätigung wechseln kann. Die Eingabeschnittstelle und der Entriegelungsschalter können beispielsweise in räumlicher Nähe zur Steuereinrichtung 22 oder der Aufzugssteuerung oder allenfalls sogar in einem entsprechenden Gehäuse der Steuereinrichtung 22 oder der Aufzugssteuerung integriert sein. Die Eingabeschnittstelle und die der Entriegelungsschalter können grundsätzlich auch an weiteren Stellen der Aufzugsanlage 10, wie beispielsweise ein Schachttürrahmen, ein separat vorgesehener Maschinenraum vorgesehen sein, die für die befugte Person ohne grossen Aufwand zugänglich sind.For this purpose, the
Optional kann die Aufzugsanlage 10 über eine Notstromversorgung verfügen, die zumindest die Steuereinheit 22 und den Aktuator 16 auch bei einem Stromausfall mit Energie versorgt. In einer besonders bevorzugten Ausführung werden zudem auch die Positionserfassungseinheit 27, der Türantrieb 13 und/oder der Entriegelungsschalter durch die Notstromversorgung gespeist.Optionally, the
Claims (15)
- Locking system for locking and unlocking a cabin door of a lift cabin (11) of a lift system (10), in which lift system (10) the lift cabin (11) can travel along a lift track having stopping points and associated stopping point zones, comprising- a lock mechanism (28) which can be brought into a locking position and in an unlocking position, wherein the cabin door in the locking position of the lock mechanism (28) is immobilized in the closed position and can be opened in the unlocking position of the lock mechanism (28),- an actuator (16) by which the lock mechanism (28) is brought either into its locking position or its unlocking position,- a control device (22) which causes the actuator (16) to bring the lock mechanism (28) into its locking position when at least the conditions are met that the lift cabin (11) is located in a stopping point zone,characterized in thatthe lift system (10) comprises a position detecting unit (27) which continuously detects the position of the lift cabin (11) relative to the lift track and communicates the position to the control device (22), andthe control device (22) continuously detects whether the condition that the lift cabin (11) is located in the region of a stopping point zone is met by comparing the position of the lift cabin (11) communicated by the position detecting unit (27) to stored position limit values of the stopping point zones.
- Method according to claim 1,
characterized in that
the same position detecting unit (27) that detects the position of the lift cabin (11) as input for a drive control of the lift cabin (11) is also used to detect the position of the lift cabin (11). - The elevator system according to either of claims 1 or 2,
characterized in that the position limit values of the stopping point zones are adjustable and/or changeable by means of a programming device. - Locking system according to any of claims 1 to 3,
characterized in that
the position detecting unit (27) comprises a measuring tape (19) with code extending along the entire length of the lift track as well as a detector (20) mounted on the lift cabin (11) which detects the code of the measuring tape (19). - Locking system according to any of claims 1 to 4,
characterized in that
the code of the measuring tape (19) is configured such that absolute values of the position of the lift cabin (11) can be detected by the detector or by the control device (22), respectively. - Locking system according to any of claims 1 to 5,
characterized in that
the code of the measuring tape (19) is formed as a so-called Manchester code in which the absolute position of the detector (20) and therefore of the lift cabin can be derived from the simultaneous detection of a plurality of successive code marks, each with one of two detectable different properties. - Locking system according to any of claims 1 to 6,
characterized in that
the measuring tape (19) is a steel strip which has a code in the form of magnetic code marks formed by zones of the steel strip magnetized as north pole and south pole. - Locking system according to any of claims 1 to 7,
characterized in that
the actuator (16) by which the lock mechanism (28) is brought either into its locking position or its unlocking position comprises an electrically controllable solenoid. - Locking system according to claim 8,
characterized in that
the solenoid is formed as a bistable solenoid. - Locking system according to any of claims 1 to 9,
characterized in that
the control device (22) causes the actuator (16) to bring the lock mechanism (28) into its unlocking position when at least the additional condition is met that a stop of the lift cabin (11) is planned at the next stopping point in the direction of travel. - Locking system according to any of claims 1 to 10,
characterized in that
the control device (22) causes the actuator (16) to bring the lock mechanism (28) into its unlocking position when at least the additional condition is met that the traveling speed of the lift cabin (11) has decreased to a defined maximum value. - Locking system according to any of claims 1 to 11,
characterized in that
the control device (22) causes the actuator (16) to bring the lock mechanism (28) into its locking position when at least the conditions are met that a drive command is pending for the lift cabin (11) and that the cabin door is closed. - Locking system according to any of claims 1 to 12,
characterized in that
the control device (22) is designed such that in the presence of defined safety conditions, the unlocking position of the lock mechanism can be effected by one person by means of at least one unlocking switch from at least one position in the lift system (10). - Locking system according to any of claims 1 to 13,
characterized in that
the lift system (10) has at least one emergency power system that guarantees that in the event of a power failure the locking mechanism (28) can be brought to its unlocking position by the lift control (22) or by means of at least an unlocking switch. - Lift system (10) with a locking system according to claims 1 to 14
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP15179193 | 2015-07-30 | ||
PCT/EP2016/066824 WO2017016896A1 (en) | 2015-07-30 | 2016-07-14 | Locking system for cabin door |
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EP3328769A1 EP3328769A1 (en) | 2018-06-06 |
EP3328769B1 true EP3328769B1 (en) | 2022-03-16 |
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EP16738804.0A Active EP3328769B1 (en) | 2015-07-30 | 2016-07-14 | Locking system for cabin doors |
Country Status (8)
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US (1) | US11124388B2 (en) |
EP (1) | EP3328769B1 (en) |
CN (1) | CN107848736B (en) |
AU (1) | AU2016299722B2 (en) |
BR (1) | BR112017028193B1 (en) |
HK (1) | HK1247174A1 (en) |
MY (1) | MY187668A (en) |
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- 2016-07-14 MY MYPI2017705171A patent/MY187668A/en unknown
- 2016-07-14 US US15/748,694 patent/US11124388B2/en active Active
- 2016-07-14 BR BR112017028193-7A patent/BR112017028193B1/en active IP Right Grant
- 2016-07-14 AU AU2016299722A patent/AU2016299722B2/en active Active
- 2016-07-14 EP EP16738804.0A patent/EP3328769B1/en active Active
- 2016-07-14 CN CN201680043748.7A patent/CN107848736B/en active Active
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2018
- 2018-05-21 HK HK18106555.4A patent/HK1247174A1/en unknown
Also Published As
Publication number | Publication date |
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BR112017028193A2 (en) | 2018-08-28 |
AU2016299722B2 (en) | 2019-06-20 |
WO2017016896A1 (en) | 2017-02-02 |
BR112017028193B1 (en) | 2023-01-24 |
HK1247174A1 (en) | 2018-09-21 |
US11124388B2 (en) | 2021-09-21 |
US20190002245A1 (en) | 2019-01-03 |
EP3328769A1 (en) | 2018-06-06 |
CN107848736A (en) | 2018-03-27 |
CN107848736B (en) | 2023-05-30 |
MY187668A (en) | 2021-10-08 |
AU2016299722A1 (en) | 2018-02-22 |
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