EP1151954B1 - Signaleinrichtung zur Positionierung einer Aufzugsanlage während einer Passagierevakuation - Google Patents

Signaleinrichtung zur Positionierung einer Aufzugsanlage während einer Passagierevakuation Download PDF

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Publication number
EP1151954B1
EP1151954B1 EP20010109212 EP01109212A EP1151954B1 EP 1151954 B1 EP1151954 B1 EP 1151954B1 EP 20010109212 EP20010109212 EP 20010109212 EP 01109212 A EP01109212 A EP 01109212A EP 1151954 B1 EP1151954 B1 EP 1151954B1
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EP
European Patent Office
Prior art keywords
car
door
elevator
led
circuit
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
Application number
EP20010109212
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English (en)
French (fr)
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EP1151954A1 (de
Inventor
Eric Rossignol
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Inventio AG
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Inventio AG
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Priority to EP20010109212 priority Critical patent/EP1151954B1/de
Publication of EP1151954A1 publication Critical patent/EP1151954A1/de
Application granted granted Critical
Publication of EP1151954B1 publication Critical patent/EP1151954B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
    • 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

Definitions

  • the present invention relates to a device for signalizing the position of an elevator car in the case of passenger evacuation, comprising a signal device, which indicates the presence of the elevator car at a landing door of a floor.
  • German utility model DE 296 15 921 U1 a device, which can be used for evacuating elevator passengers in a dangerous situation.
  • the device is planned for elevator installations without machine room, whereby the drive unit is positioned in the elevator shaft. If the elevator car is stuck in the shaft, the brake will be manually released and the car can reach the next floor, where the elevator passengers can leave the car without danger.
  • the actuation of the brake is done by means of an actuator placed on a landing zone, where is placed also the elevator control unit. By evacuation the elevator car moves without electric power by means of the unequal balance between the car with the load and the counterweight.
  • DE-A-19754034 discloses a device for signalizing the position of an elevator car in case of passenger evacuation as well.
  • EP 0712803 discloses a device for signalizing the position of an elevator car in the case of a passenger evacuation, comprising a signal device, which indicates the presence of the elevator car at a landing door of a floor.
  • a problem of the known devices is that the person, who actuates the brake must control the movement of the elevator car by means of the movement of the hoisting rope or the over speed governor rope. Such control need much experience and attention and can not be expected from an unpracticed person.
  • the present invention as defined in claim 1 proposes a device that solves all the above-cited problems and provides a device, which enables the evacuation of the elevator passenger safe, without danger.
  • An advantage of the present invention is to see in the fact, that the evacuation procedure is easy and could be made also by an unpracticed person. Another advantage is that no window in the wall of the shaft is needed to control the movement of the ropes and therefore of the car. Furthermore no markings are needed on the ropes. By the present invention no additional components in the shaft are needed, only conventional components of the elevator installation are used.
  • FIG. 1 shows an elevator installation without machineroom.
  • the device according to the present invention can be applied also by elevator installations with conventional machineroom.
  • An elevator drive unit 1 with a drive sheave 2 moves an elevator car 3 and a counterweight 4 up and down in an elevator shaft 5 by means of ropes 6.
  • the drive unit 1 is controlled by a drive control unit 7.
  • the elevator car 3 moves along guide rails 8.
  • a controller cabinet 9 provided with an elevator control unit 10 is positioned on the floor E2 near a landing door 11.
  • the elevator control unit 10 is connected to the drive control unit 7 and via a traveling cable 12 to the elevator car 3.
  • the elevator control unit 10 controls the movement of the elevator car 3 and ensures the safety of the elevator installation.
  • the controller cabinet 9 is also a turnable element or handle 13 installed, which is part of a mechanical power transmission element 14 consisting for instance in a axially rigid tube.
  • a mechanical power transmission element 14 consisting for instance in a axially rigid tube.
  • One end of the power transmission element 14 is connected to the handle 13 and the other end of the power transmission element 14 is connectable with the drive sheave 2.
  • the elevator car 2 travels between two floors E1, E2. Obviously more than two floors can be also served by the car 3.
  • the door zone are arranged door zone elements 15.
  • the door zone elements 15 are positioned on the top of each landing door 11 and they are operated by the interaction with a corresponding actuation element 16 located on the elevator car 3, preferably on a car door 17.
  • the corresponding actuation element 16 interacts with the door zone element 15. The presence of the car at that given floor is then therefore detected. The detection of the car 3 will then be communicated/ transmitted to the elevator control unit 10, as it will be described later.
  • the interaction between the door zone element 15 and the corresponding actuation element 16 on the car 3 can for instance be mechanically, electrically or magnetically.
  • the door zone elements 15 interact with a landing door safety contact 18 (see figure 2 ) located on each landing door 11. All the landing door safety contacts 18 are connected in serial and are part of the conventional safety chain SC, which takes care of the safety of the elevator installation. The state of the landing door safety contacts 18 is used by the signal device of the present invention to signalize the presence of the car 3 at a floor E1, E2.
  • FIG. 2 shows a conventional landing door locking system, which is well known by a person skilled in the art and which is preferably used by the evacuation device of the present invention.
  • the landing door 11 has a lock 19 linked to the landing door safety contact 18 that is closed when the landing door 11 is locked and is opened when the landing door 11 is unlock.
  • the landing door 11 presents two roller 20 acting as door zone elements 15 and the car door 17 is provided with two clamps 21 acting as corresponding actuation element 16.
  • the unlocking of the landing door 11 is actuated by the two clamps 21 of the car door 17 that push away the two rollers 20 mounted on the landing door locking system.
  • the car door 17 is lock, i.e. when the car is under power the two clamps 21 are closed and do not push on the two rollers.
  • the car door is unlocked (without power) the two clamps 21 open and push on the two rollers 20, that unlock the landing door, the landing door safety contact 18 is then opened.
  • FIG. 3 shows a concept diagram of a measurement circuit MC used in the signal device of the present invention.
  • the measurement circuit MC is on a small printed circuit board PCB and it is integrated into a conventional electric board of the elevator control unit 10.
  • the measurement circuit MC has the objective to detect and signalize the opening of the landing door safety contacts 18. This indication is needed by the rescuer person performing the manual evacuation of the passenger in case of elevator failure.
  • a safety chain supply 22 is connected serially to all the safety chain contacts SCC of the safety chain SC. All the landing door safety contacts 18 are connected in serial and form a chain of door contacts CC, which is therefore part of the safety chain SC.
  • a supply circuit SU comprising a frequency generator 23 with a first coupling capacitor C1.
  • the frequency generator 23 is also connected to a battery or accumulator 24.
  • a first detection circuit FD composed of a light emitting diode (LED) 25 and a second coupling capacitor C2.
  • LED 25 is shown a diode Di in the other direction.
  • the first detection circuit FD can also work with two LED's. If necessary the capacitors C1 and C2 could be serially connected also to resistors, which are not shown in the figure.
  • a signal is introduced at the beginning of the chain of door contacts CC (point A) and the first detection circuit FD detects the presence of the signal at the end of the chain of door contacts CC (point B).
  • the signal introduced at the beginning of the chain of contacts CC can be the safety chain supply 22 itself, if the main power is present or a signal given by a frequency generator 23 supplied by the battery 24, if there is no main power.
  • the frequency generator signal is introduced on the safety chain SC by means of the first coupling capacitor C1 that protects the frequency generator 23 against the normal voltage with low frequency of the safety chain SC. In this way the frequency generator 23 can stay connected permanently to the safety chain SC.
  • An activation switch 26 (see figure 4 ) to switch on the battery is optional.
  • the second coupling capacitor C2 of the first detection circuit FD protects the LED 25 against normal voltage of the safety chain SC, and permit to keep the first detection circuit FD connected permanently.
  • the first detection circuit FD and the frequency generator signal are defined so that the first detection circuit FD can work with both input signals: the normal safety chain supply signal and the frequency generator signal.
  • the coupling capacitors C1 and C2 work as frequency depending resistors. Their resistance gets lower when the frequency gets higher.
  • Figure 4 shows a circuit diagram of the measurement circuit MC in a first embodiment.
  • the chain of contacts CC is supplied by a small battery 24.
  • the battery 24 may be activated by the activation switch 26.
  • the circuit diagram of figure 4 looks like the circuit diagram of figure 3 , the difference consisting in a second detection circuit SD positioned at a third measurement point C, at the beginning of the chain of door contacts CC, the point C lying on the same potential as the first measurement point A.
  • the second detection circuit SD is positioned parallel to the supply circuit SU.
  • the second detection circuit SD is connected to the safety chain SC and to the earth potential PE and it is provided with an additional LED 27 and a third coupling capacitor C3.
  • By the additional LED 27 is present an additional diode Di' in the other direction. Also here two LED's can be used. If necessary the third capacitor C3 can be also serially connected to another resistor, not represented.
  • the additional LED 27 of the second detection circuit SD indicate that the measurement circuit MC is working
  • the LED 25 of the first detection circuit FD indicate that the car 3 is not at floor, i.e. if LED 25 is on then the car is not at floor, if LED 25 is off then the car is at floor.
  • the elevator installation can be provided with a recall control station, not represented, located in the controller cabinet 9.
  • the recall control station can be operated for instance by aid of an up and a down button.
  • the elevator shaft 5 is provided, as conventional, with shaft information elements KS, not represented, which are used by the elevator car 3 to recognize its position in the shaft 5.
  • the shaft information elements KS can for instance serve to see if the car 3 is in a deceleration zone or in the door zone.
  • An indication device ID connected to such shaft information elements KS, is located on the electric board of the controller cabinet 9. The indication device ID lit on in two cases: When the car is in the door zone and when the car is between two deceleration points.
  • the indication device may be a further LED.
  • the evacuation procedure contains following steps:
  • Figure 5 shows a circuit diagram of the measurement circuit in a second implemented embodiment.
  • the first detection circuit FD is composed of one LED 25 connected to the second coupling capacitor C2 by means of an opto-coupler 28 and an inverter transistor 29.
  • the inverter transistor 29 serves to have the LED 25 lit on in the door zone and off outside the door zone. In that way the indication of the presence of the car 3 at a floor is signalized in a non-ambiguous way.
  • the second coupling capacitor C2 is dimensioned so that the measuring circuit MC receives about the same nominal current with both signals, i.e. the signal of the safety chain supply 22 and of the frequency generator 23.
  • a second detection circuit SD is connected on the input of the chain of contacts CC at the third point C, in order to check the presence of the signal, i.e. the functioning of the measurement circuit MC.
  • the frequency generator 23 is supplied by an emergency power supply 30 of the elevator (12VDC).
  • the emergency power supply 30 with the frequency generator 23 is not part of the safety chain SC, it is cut in normal operation by a double safety contact 31 activated by the handle clutch system in the controller cabinet 9.
  • the double safety contact 31 connects the emergency power supply 30 to the frequency generator 23 and opens the safety chain SC after the measurement circuit MC, i.e. after the second measurement point B. This also avoids that the measurement circuit MC discharges the emergency power supply 30 when not needed.
  • the double safety contact 31 disconnects the emergency power supply 30, it closes the safety chain SC after the measurement circuit MC, so the safety chain SC is available.
  • the double safety contact 31 connects the emergency power supply 30 the safety chain SC is disconnected after the measurement circuit MS. In this case the safety chain SC is not required, the elevator is actually operated manually.
  • the LED 25 of the first detection circuit FD is permanently supplied by the emergency power supply 30 in order to work with the recall control station procedure.
  • the opto-coupler 28 is needed to galvanically isolate the emergency power supply 30 from the safety chain SC
  • the measurement circuit should be built to respect the following requirements:
  • the LED 25 and the additional LED 27 can be used a red LED respectively a yellow LED or viceversa.
  • the LED's 25, 27 are low consumption LED, preferably they work with a current of 1 mA.
  • the capacitors and the resistor have to been chosen, so that a current of 1mA can always pass therethrough for operating the LED's.
  • the values of the coupling capacitor C1, C2 and C3 are such as the normal safety chain supply (U n ,F n ) generates the nominal current I in the LED 25 of the first detection circuit FD, whereby: U n : Tension of the normal safety chain supply and F n : Frequency of the normal safety chain supply.
  • U n Tension of the normal safety chain supply
  • F n Frequency of the normal safety chain supply.
  • the frequency of the generator 23 must be such as to generate the nominal current I in the LED 25 when there is no normal safety chain supply. ⁇ 1 / 2 ⁇ F b C ⁇ 1 + 1 / 2 ⁇ F b C ⁇ 2 .

Landscapes

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

Claims (8)

  1. Vorrichtung zum Signalisieren der Position einer Aufzugskabine (3) bei einer Passagierevakuierung, umfassend eine Signalvorrichtung, die die Anwesenheit der Aufzugskabine (3) an einer Etagentüre (11) eines Stockwerks (E1, E2) anzeigt, wobei
    die Signalvorrichtung von mindestens einem Türzonenelement (15) betätigt wird, das durch die Ankunft der Aufzugskabine (3) betrieben wird, und die Signalvorrichtung eine Messschaltung (MC) umfasst, die mit einer Sicherheitskette (SC) des Aufzugs verbunden ist,
    dadurch gekennzeichnet, dass
    die Messschaltung (MC) eine Speiseschaltung (SU), die einen Frequenzgenerator (23) mit einem ersten Kondensator (C1) aufweist, und eine erste Detektionsschaltung (FD) mit einem zweiten Kondensator (C2) umfasst, wobei jede der Speiseschaltung (SU) und der ersten Detektionsschaltung (FD) mit der Sicherheitskette (SC) und mit Massepotential (PE) verbunden ist.
  2. Vorrichtung nach Anspruch 1, wobei die Messschaltung (MC) sich auf einer gedruckten Leiterplatte befindet, die in eine elektrische Platine einer Aufzugssteuereinheit (10) integriert ist.
  3. Vorrichtung nach Anspruch 1 oder 2, wobei die Messschaltung (MC) eine zweite Detektionsschaltung (SD) mit einem dritten Kondensator (C3) umfasst, die mit der Sicherheitskette (SC) und Massepotential (PE) verbunden ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Türzonenelement (15) mit einem Etagentürensicherheitskontakt (18) der Sicherheitskette (SC) wechselwirkt.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Türzonenelement (15) von einem entsprechenden Betätigungselement (16) betätigt wird, das sich an der Aufzugskabine (3) befindet.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Messschaltung (MC) mit einem Lichtsignal (25, 27) zum Anzeigen der Anwesenheit der Aufzugskabine auf einem Stockwerk versehen ist.
  7. Vorrichtung nach Anspruch 6, wobei das Lichtsignal mindestens eine LED (25, 27) umfasst.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Messschaltung (MC) durch eine Batterie oder einen Akkumulator versorgt wird.
EP20010109212 2000-04-27 2001-04-14 Signaleinrichtung zur Positionierung einer Aufzugsanlage während einer Passagierevakuation Expired - Lifetime EP1151954B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20010109212 EP1151954B1 (de) 2000-04-27 2001-04-14 Signaleinrichtung zur Positionierung einer Aufzugsanlage während einer Passagierevakuation

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
EP00810363 2000-04-27
EP00810363 2000-04-27
EP00810366 2000-05-01
EP00810366 2000-05-01
EP00810761 2000-08-25
EP00810761 2000-08-25
EP20010109212 EP1151954B1 (de) 2000-04-27 2001-04-14 Signaleinrichtung zur Positionierung einer Aufzugsanlage während einer Passagierevakuation

Publications (2)

Publication Number Publication Date
EP1151954A1 EP1151954A1 (de) 2001-11-07
EP1151954B1 true EP1151954B1 (de) 2010-06-02

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EP20010109212 Expired - Lifetime EP1151954B1 (de) 2000-04-27 2001-04-14 Signaleinrichtung zur Positionierung einer Aufzugsanlage während einer Passagierevakuation

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Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103498B (fi) * 1996-09-05 1999-07-15 Kone Corp Järjestely hissikoneiston jarrun avaamiseen
US5780787A (en) * 1996-10-31 1998-07-14 Otis Elevator Company Monitoring of manual elevator door systems

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EP1151954A1 (de) 2001-11-07

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