EP3728096B1 - Installation d'ascenseur dotée d'une unité de rideau lumineux - Google Patents

Installation d'ascenseur dotée d'une unité de rideau lumineux Download PDF

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Publication number
EP3728096B1
EP3728096B1 EP18815752.3A EP18815752A EP3728096B1 EP 3728096 B1 EP3728096 B1 EP 3728096B1 EP 18815752 A EP18815752 A EP 18815752A EP 3728096 B1 EP3728096 B1 EP 3728096B1
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EP
European Patent Office
Prior art keywords
elevator
unit
light beam
test element
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18815752.3A
Other languages
German (de)
English (en)
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EP3728096A1 (fr
Inventor
Hansueli Stocker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
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Inventio AG
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Publication date
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Publication of EP3728096A1 publication Critical patent/EP3728096A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093—Testing of safety devices
    • 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
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
    • E05F2015/434—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with optical sensors
    • E05F2015/435—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with optical sensors by interruption of the beam
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/50—Fault detection
    • E05Y2400/502—Fault detection of components
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/104—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for elevators

Definitions

  • the invention relates to an elevator system with a light curtain unit and a method for testing such a light curtain unit.
  • Conventional elevator systems have an elevator car that can usually be moved vertically in an elevator shaft.
  • the elevator shaft has several shaft door openings.
  • a separate shaft door is arranged at each of these shaft door openings. These shaft doors are usually arranged in alignment one above the other.
  • An elevator car can be moved along this elevator shaft.
  • the elevator car has a car door.
  • the elevator car can be positioned within the elevator shaft in such a way that the car door is arranged on one of these shaft doors.
  • the car door is usually coupled to this shaft door arranged on the car door in order to open, close or unlock it.
  • a door drive arranged on the elevator car therefore enables both the actuation of the car door and the actuation of the shaft door coupled to the car door. If both the shaft door and the car door arranged on this shaft door are open, the elevator car can be entered or exited through these open doors.
  • a light curtain unit In order to prevent objects or people from becoming trapped when the doors are closed, the area around the door opening is usually monitored by means of a light curtain unit.
  • a light curtain unit comprises a transmitter unit for emitting a light beam and a receiver unit for receiving the light beam.
  • the transmitting unit and the receiving unit are arranged at the door opening in such a way that the light beam is aligned along the plane of the door opening, between the open shaft door and the open car door. If the light beam of the light curtain is interrupted when the doors are closed, the closing of the doors is interrupted or reversed.
  • the invention is based on the knowledge that a light curtain unit comprising a transmission unit, a reception unit and an evaluation unit must be functional essentially during the entire operation of the elevator installation. This means that the light beam can be sent by the transmitting unit and received by the receiving unit during operation of the elevator installation. This also applies in particular to the time period during which the elevator car is moved, that is to say the time period during which both the car door and the shaft doors are closed. In order to test both the transmitting unit and the receiving units without complicating the safety-related process when the elevator door is open or closing, the Period can be used in which the elevator car is moved and therefore the light curtain is not relevant to safety.
  • a test element fixed in the elevator shaft is arranged in such a way that the light beam emitted by the transmitting unit and received by the receiving unit can be interrupted by the test element when the elevator car is being moved.
  • the light beam it is possible for the light beam to be interrupted by the test element when both the car door and the shaft door are closed.
  • a development of the elevator system has an elevator car that can be moved in the elevator shaft, the elevator car having a car door opening, and the transmitting unit being arranged on a first side of the car door opening and the receiving unit being arranged on the other side of the car door opening.
  • the transmitting unit and the receiving unit are advantageously arranged on the elevator car so that each of the shaft doors of the elevator system does not have to be equipped with these components. In this way, all open shaft doors on which the open car door is arranged can be monitored using only one transmitter unit and one associated receiver unit.
  • the test element can be arranged on the elevator car, with the transmitting unit and the receiving unit being fixed on one of the shaft doors.
  • the test element is fixed to a wall of the elevator shaft.
  • the test element can be fixed to a frame of a shaft door of the elevator system. In its closed position, such a shaft door closes a shaft door opening.
  • the test element is preferably arranged on a shaft door sill, ie on the frame of the shaft door below the shaft door opening, or on a transom, ie on a cross member arranged above the shaft door opening, of the frame of the shaft door.
  • the light beam is aligned horizontally.
  • the test element can therefore have small dimensions both in the horizontal and in the vertical direction and can therefore be manufactured cheaply.
  • the test element is designed to be elastic. Accordingly, the transmitting and receiving units can be tested in an unproblematic manner even if the elements of the shaft door arranged one above the other, which are fixed to the elevator shaft, are not aligned vertically with great accuracy. Accordingly, the test element can certainly collide with elements of the elevator car or the elevator shaft while it is traveling through the elevator shaft, without elements of the elevator system, in particular the test element itself, being destroyed or damaged.
  • the elastic test element is preferably formed by a brush-like test element. It is advantageous that such a collision of the brush-like test element with the elements mentioned essentially does not produce any perceptible noises that are irritating for the elevator passenger.
  • a brush-like test element for example comparable to a household broom, can for example comprise a multiplicity of bristles.
  • the transmitter unit and the receiver unit have a vertical dimension that essentially corresponds to the height of the door opening, with the transmitter unit emitting a large number of light beams that can be detected by the receiver unit. The entire door opening can be monitored using such a light curtain.
  • the receiving unit sends a signal to an evaluation unit for detecting the functionality of the transmitting or receiving unit depending on the light beam that is interrupted or not interrupted by the test element.
  • an evaluation unit makes it possible to further process the recognized functionality of the transmitter or receiver unit within the elevator system and, if necessary, to continue to operate the elevator system in a safe operating mode for safety reasons, to take it out of operation if necessary, or to have the elevator system serviced by transmitting the data obtained by the evaluation unit to schedule a service center promptly.
  • a further development of the elevator system includes a position detection device for detecting the position of the elevator car in the elevator shaft, the evaluation unit being designed in such a way that, by means of the continuously recorded position of the elevator car, a position of the test element can be compared with a position of the interrupted or to be interrupted light beam in the elevator shaft .
  • the position detection device transmits a position of the elevator car to the evaluation unit, so that a vertical position of the test element attached to the elevator car or of the stationary light beam in the elevator car can be determined by means of the information transmitted by the position detection device, a position of the test element being compared with the position of the light beam and, if the positions of the test element and the light beam match, the detected or non-detected interruption of the light beam is included in the evaluation for the functionality of the transmitting unit and the receiving unit.
  • a safety-related testing of this light curtain unit can be carried out if it is ensured that the at least one light beam of the light curtain unit can only be interrupted by the test element.
  • an element of the elevator system which may interrupt the light beam and which is not the test element is typically arranged directly above the shaft door opening.
  • Such an element can be a part of the lock of the landing door.
  • the test element can be arranged directly below the shaft door opening.
  • the method for testing the light curtain unit can be carried out immediately after the start of this run. Subsequent interruptions of the light beam cannot, for example, be included in an evaluation of the functionality of the light curtain unit.
  • the method for testing the light curtain unit can be carried out immediately before the elevator car arrives at this landing door opening.
  • a signal that triggers the braking of the elevator car can be used to carry out the method for testing the light curtain unit. If the test element has already passed, ie interrupted, a first of several light beams of the light curtain unit at this time, this signal can also be used to include this interruption in the evaluation.
  • test element can be arranged above the shaft door opening. The procedure for testing the light curtain unit must then be carried out in a corresponding manner.
  • FIG. 1 shows an elevator installation 1.
  • the elevator installation 1 comprises an elevator shaft 2 and an elevator car 4 that can be moved in the elevator shaft 2 and typically a counterweight 6.
  • the elevator car 4 can usually be moved essentially vertically in accordance with the alignment of the elevator shaft 2.
  • the counterweight 6 is arranged to be movable in the opposite direction to the elevator car 4 .
  • the elevator car 4 and the counterweight 6 are connected by means of a suspension means 9, which suspension means 9 in Head of the elevator shaft 2 can be guided over pulleys 8.
  • One of these deflection rollers 8 can be designed as a drive unit for moving the elevator car 4 .
  • the elevator shaft 2 has a plurality of shaft doors 12 arranged one above the other, these shaft doors 12 connecting the elevator shaft 2 to a plurality of usually horizontally aligned storeys.
  • the elevator car 4 On its side facing the shaft doors 12, the elevator car 4 has a car door 10 for closing a car door opening.
  • the elevator system 1 can include a position detection device, not shown.
  • a position detection device is usually used as an input for a travel control of the elevator car 4 and can have a measuring tape with a coding extending over the entire length of the elevator shaft 2 and a detector attached to the elevator car 4 .
  • the detector is used to record the coding of the measuring tape. This results in the possibility of continuously determining the position of the elevator car 4 .
  • FIG figure 2 shows a front view of the elevator car 4 with the car door 10 in an open state.
  • the cabin door 10 comprises at least one cabin door panel 24, with an edge of the cabin door panel 24 facing the cabin door opening 11 usually being in the open state with one of the cabin door posts 22 according to a view according to FIG figure 2 flees.
  • the cabin door opening 11 is delimited by a further cabin door post 22 .
  • a transmitting unit 16 and a receiving unit 18 of a light curtain unit are each arranged on either side of the car door opening 11 .
  • Both the transmitter unit 16 and the receiver unit 18 can have a vertical dimension that essentially corresponds to the height of the cabin door opening 11 . Accordingly, the transmitter unit 16 can be designed in such a way that it emits a large number of light beams in the direction of the receiver unit 18 in order to be able to monitor the entire cabin door opening 11 in a vertical extent.
  • FIG 3 shows an elevator car 4 arranged in an elevator shaft 2 in a plan view.
  • Elevator car 4 shown is an example of a Landing door 12 arranged.
  • the shaft door 12 has elements of a shaft door frame which essentially enclose, preferably completely, a shaft door opening 13 when the shaft door 12 is open.
  • the elements of the shaft door frame are a shaft door sill 23, shaft door posts 20 arranged to the side of a shaft door opening 13 and a shaft door header (not shown) arranged above the shaft door opening 13.
  • the transmitting and receiving units 16 , 18 are arranged on the elevator car 4 in such a way that a light beam 21 emitted by the transmitting unit and receivable by the receiving unit 18 runs between the car door 10 and the shaft door 12 .
  • the light beam 21 is usually used to monitor the coupled, open car door 10 and the shaft door 12 and in particular to monitor the closing process of the car door 10 coupled to the shaft door 12.
  • test element 30 is preferably fixed to the shaft door sill 13, to one of the door posts 20 or to the shaft door header, not shown.
  • the test element 30 can be fixed to a wall of the elevator shaft 2 in the vertical alignment of the shaft doors, that is to say between the shaft doors of the elevator installation.
  • the test element 30 is preferably elastic and is arranged partially between the transmitter unit 16 and the receiver unit 18 in the viewing direction of the travel direction of the elevator car 4 in such a way that the light beam 21 can be interrupted by the test element 30 .
  • the transmitting unit 16 and receiving unit 18 explained are fixed to the elevator car 4, with the test element 30 being fixed to a wall of the elevator shaft or to a shaft door.
  • the transmitting unit 16 and the receiving unit 18 can be fixed to a shaft door and the test element 30 can be fixed to the elevator car 4 .
  • FIG 4 shows elements of a light curtain unit 35 for monitoring an elevator door that includes a car door and a shaft door and is not closed.
  • the light curtain unit 35 includes a transmitter unit 16, a receiver unit 18 and an evaluation unit 32 and signal connections 34, 37.
  • the receiving unit 18 comprises electro-optical monitoring sensors for detecting the light emitted by the transmitting unit 16, the light emitted by the transmitting unit 16 being based on infrared radiation.
  • the transmission unit 16 is connected to the evaluation unit 32 by means of a first of the signal connections 34 .
  • the receiving unit 18 is connected to the evaluation unit 32 by means of the second of the signal connections 37 .
  • the transmitter unit 16 emits an exemplary light beam 21 which can be detected by the receiver unit 18 in the absence of an intervening obstacle. Signals are transmitted to the evaluation unit 32 by means of the signal connections 34, 37, i.e. if the components of the light curtain unit 35 are intact, the evaluation unit 32 can be used to identify that the light beam 32 was both emitted and received by the corresponding components of the light curtain unit 35.
  • the light beam 21 is interrupted when the test element 30 is briefly arranged between the transmitting unit 16 and the receiving unit 18 . Consequently, an interruption of the light beam 21 that can be detected by the evaluation unit 32 is to be expected. This means that a signal transmitted from the receiving unit 18 to the evaluation unit 32 may only indicate briefly that the light beam 21 was not detected. If such a brief change in the signal transmitted from the receiving unit 18 to the evaluation unit 32 does not occur, it would have to be assumed that the light curtain unit 35 is not functional.
  • the elevator system can be designed in such a way that if the positions of the briefly interrupted light beam 21 and the test element 30 match, the brief interruption of the corresponding signal that has taken place or not can be included in an evaluation of the functionality.
  • the light curtain unit 35 is preferably safety-related. It may therefore be necessary to shut down the entire elevator system until the functional capability of the light curtain unit 35 has been restored.
  • a control center which is responsible for servicing the elevator system, for the purpose of later restoring full functional capability by means of a service.
  • this can be carried out in an elevator system with a transmitter unit 16 and a receiver unit 18 which have a vertical dimension which essentially corresponds to the height of the door opening.
  • a transmitter unit 16 and a receiver unit 18 which have a vertical dimension which essentially corresponds to the height of the door opening.
  • the not fully functional light curtain unit 35 can be supported or functionally replaced by a comparable safety system.
  • the entire number of light beams 21 can be interrupted by the test element 30 while the elevator car 4 is traveling.
  • the position detection device an evaluation is made possible so that it can be specified whether all of the light beams 21 are functional according to the purpose of the light curtain unit or which of the light beams 21 is not detected by the receiving unit 18 or possibly not sent by the transmitting unit 16.

Claims (9)

  1. Installation d'ascenseur (1) comportant
    une cage d'ascenseur (2), et
    une porte de cage (12), et
    une cabine d'ascenseur (4) pouvant être déplacée dans la cage d'ascenseur (2), la cabine d'ascenseur (4) présentant une ouverture de porte de cabine (11), et
    une unité d'émission (16) permettant d'émettre au moins un faisceau lumineux (21), et
    une unité de réception (18) permettant de recevoir le faisceau lumineux (21), l'unité d'émission (16) étant disposée sur un premier côté de l'ouverture de porte de cabine (11) et l'unité de réception (18) étant disposée sur l'autre côté de l'ouverture de porte de cabine (11), et un élément de test (30) permettant de tester l'unité de réception et/ou permettant de tester l'unité d'émission (16), le faisceau lumineux (21) entre l'unité d'émission et l'unité de réception (16, 18) pouvant être interrompu par l'élément de test (30), l'élément de test (30) étant fixé sur une paroi de la cage d'ascenseur (2) ou sur un cadre de la porte de cage (12), l'élément de test (30) étant disposé de telle sorte que le faisceau lumineux (21) émis par l'unité d'émission (16) et reçu par l'unité de réception (18) peut être interrompu par l'élément de test (30) lors du déplacement de la cabine d'ascenseur (4).
  2. Installation d'ascenseur (1) selon l'une des revendications précédentes, dans laquelle le faisceau lumineux (21) est orienté horizontalement.
  3. Installation d'ascenseur (1) selon l'une des revendications précédentes, dans laquelle l'élément de test (30) est élastique.
  4. Installation d'ascenseur (1) selon la revendication 3, dans laquelle l'élément de test (30) est réalisé à la manière d'une brosse.
  5. Installation d'ascenseur (1) selon l'une des revendications précédentes, dans laquelle l'unité d'émission (16) et l'unité de réception (18) présentent une dimension verticale qui correspond sensiblement à la hauteur de l'ouverture de porte (11, 13), l'unité d'émission (16) émettant une pluralité de faisceaux lumineux (21) pouvant être détectés par l'unité de réception (18), chacun desdits faisceaux lumineux (21) pouvant être interrompu par l'élément de test (30).
  6. Installation d'ascenseur (1) selon l'une des revendications précédentes, dans laquelle l'unité de réception (18) envoie un signal à une unité d'évaluation (32) en fonction du faisceau lumineux (21) interrompu ou non interrompu par l'élément de test (30) pour la détection du bon fonctionnement de l'unité d'émission ou de l'unité de réception (16, 18).
  7. Installation d'ascenseur (1) selon la revendication 6, comportant un dispositif de détection de position permettant de détecter la position de la cabine d'ascenseur (4) dans la cage d'ascenseur (2), dans laquelle l'unité d'évaluation (32) est configurée de telle sorte qu'une position de l'élément de test (30) peut être comparée avec une position du faisceau lumineux (21) interrompu ou non interrompu prise dans la cage d'ascenseur (2) au moyen de la position de la cabine d'ascenseur (4) détectée en continu.
  8. Procédé permettant de tester une unité d'émission (16) émettant au moins un faisceau lumineux (21) et une unité de réception (18) recevant le faisceau lumineux (21) d'une installation d'ascenseur (1) selon l'une des revendications 1 à 7, dans lequel le faisceau lumineux (21) entre l'unité d'émission (16) et l'unité de réception (18) est interrompu par l'élément de test (30) lors d'un déplacement de la cabine d'ascenseur (4) et une modification du trajet de signal généré par l'unité de réception (18) au moyen de l'unité d'évaluation (32) permet de détecter le fait que l'unité d'émission (16) et l'unité de réception (18) sont en état de fonctionner ou ne sont pas en état de fonctionner.
  9. Procédé permettant de tester une unité d'émission (16) émettant au moins un faisceau lumineux (21) et une unité de réception (18) recevant le faisceau lumineux (21) d'une installation d'ascenseur (1) selon la revendication 8, dans lequel l'installation d'ascenseur (1) présente un dispositif de détection de position et le dispositif de détection de position transmet une position de la cabine d'ascenseur (4) à l'unité d'évaluation (35) de sorte qu'une position verticale de l'élément de test (30) fixé à la cabine d'ascenseur (4) ou du faisceau lumineux (21) disposé de manière fixe sur la cabine d'ascenseur (4) peut être détectée au moyen des informations transmises par le dispositif de détection de position, une position de l'élément de test (30) étant comparée avec la position du faisceau lumineux (21) et, lorsque les positions de l'élément de test (30) et du faisceau lumineux (21) coïncident, l'interruption détectée ou non détectée du faisceau lumineux (21) est incluse dans l'évaluation du bon fonctionnement de l'unité d'émission (16) et de l'unité de réception (18).
EP18815752.3A 2017-12-19 2018-12-17 Installation d'ascenseur dotée d'une unité de rideau lumineux Active EP3728096B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17208585 2017-12-19
PCT/EP2018/085160 WO2019121487A1 (fr) 2017-12-19 2018-12-17 Installation d'ascenseur comprenant une unité de rideau lumineux

Publications (2)

Publication Number Publication Date
EP3728096A1 EP3728096A1 (fr) 2020-10-28
EP3728096B1 true EP3728096B1 (fr) 2023-02-01

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EP18815752.3A Active EP3728096B1 (fr) 2017-12-19 2018-12-17 Installation d'ascenseur dotée d'une unité de rideau lumineux

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WO (1) WO2019121487A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112299174B (zh) * 2019-07-29 2022-04-12 上海三菱电梯有限公司 电梯轿厢出入口监测系统
CN112158694B (zh) * 2020-09-18 2021-12-17 猫岐智能科技（上海）有限公司 电梯控制系统及电梯设备
CN115849144B (zh) * 2022-09-22 2024-04-26 杭州展特智能科技有限公司 用于货梯的货物识别与防撞控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06336387A (ja) * 1993-05-25 1994-12-06 Otis Elevator Co 光検出器の故障素子特定装置
US6157024A (en) * 1999-06-03 2000-12-05 Prospects, Corp. Method and apparatus for improving the performance of an aperture monitoring system
GB2526070A (en) 2014-05-02 2015-11-18 Ensota Ltd Method and testing apparatus for testing an optical sensor
GB2526069A (en) 2014-05-02 2015-11-18 Ensota Ltd A method of testing an optical sensor

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EP3728096A1 (fr) 2020-10-28

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