EP0391174B1 - Dispositif et méthode pour détecter des paramètres physiques d'un élévateur - Google Patents

Dispositif et méthode pour détecter des paramètres physiques d'un élévateur Download PDF

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Publication number
EP0391174B1
EP0391174B1 EP90105566A EP90105566A EP0391174B1 EP 0391174 B1 EP0391174 B1 EP 0391174B1 EP 90105566 A EP90105566 A EP 90105566A EP 90105566 A EP90105566 A EP 90105566A EP 0391174 B1 EP0391174 B1 EP 0391174B1
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EP
European Patent Office
Prior art keywords
cable
evaluation unit
driving pulley
control circuit
lift
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.)
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EP90105566A
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German (de)
English (en)
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EP0391174B2 (fr
EP0391174A1 (fr
Inventor
Hanspeter Hofmann
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TUEV BAU- UND BETRIEBSTECHNIK GMBH UNTERNEHMENSGRU
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Technischer Ueberwachungs-Verein Bayern Ev
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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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0037—Performance analysers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • 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
    • B66B5/0006—Monitoring devices or performance analysers

Definitions

  • the innovation relates to a device for detecting physical parameters, in particular movement parameters, of a goods and / or passenger elevator, the elevator having at least one cable pull guided over a traction sheave, at one end of which the car and at the other end of which a counterweight hangs , is driven by a drive motor controlled by an electrical control circuit and operates on the drive pulley, and comprises a brake device connected to the drive pulley and controlled by the control circuit.
  • the background for this innovation is safety checks on goods and passenger lifts. Such lifts must be subjected to regular checks, e.g. Characteristic values such as travel paths, braking distances, catching paths and the slip resistance (driving ability) of the cable pull driven by the traction sheave must be determined.
  • this object is achieved in that an evaluation unit with a timer is provided, and in that a distance sensor connected to the cable pull and / or the traction sheave is provided, which is connected to an input of the evaluation unit, and that the evaluation unit further, with Switching points of the control circuit, at which signals controlling the movement sequence of the elevator are present, have connectable inputs.
  • kinematic data of the elevators that is to say travel path and associated time measurement values, can be determined as a function of the signals controlling the movement sequence of the elevator, the required test characteristic values being able to be determined from the kinematic data.
  • the new test procedure represents a significant improvement from a safety point of view in that the elevator is not subjected to high loads during the test.
  • the evaluation unit can advantageously have a device for determining and recording distance, speed and acceleration values as a function of time or distance.
  • the braking and catching curves recorded in this way are output on a screen or printer and overlaid with calculated envelopes (which define permissible upper and lower limits). This makes it easy to determine the effectiveness of the brake and safety gear.
  • the determined curves can be saved on a data carrier.
  • the evaluation device expediently comprises a computer, preferably a personal computer.
  • the device according to the innovation has a force measuring signal transmitter connected to the cable, by means of which the forces transmitted by the cable and determining the sequence of movements of the car can be determined.
  • a force measuring signal transmitter connected to the cable, by means of which the forces transmitted by the cable and determining the sequence of movements of the car can be determined.
  • An advantageous development of the invention consists in a method for acquiring physical parameters.
  • the rope, the car and the counterweight are accelerated or decelerated in a targeted manner during normal elevator operation.
  • the movement parameters of the rope and the traction sheave are recorded separately depending on the time.
  • the movement parameters of the rope and traction sheave are also compared with a predetermined limit movement parameter (e.g. a limit curve), the drive capacity of the traction sheave being fulfilled in any case if this limit value is exceeded.
  • a predetermined limit movement parameter e.g. a limit curve
  • the reference numeral 1 denotes a traction sheave which has two guide grooves for a cable pull 2 formed in the present case by two cables.
  • a car 3 is attached to one end of the cable 2.
  • a counterweight 4 hangs at the other end of the cable 2.
  • the mass of the counterweight 4 usually corresponds to the mass of the car 3 plus half the permissible car load.
  • 5 designates a motor-transmission-brake unit for driving the traction sheave 1, this unit having a handwheel 10 for rotating the traction sheave 1.
  • the unit 5 contains a brake for the traction sheave 1.
  • the unit 5 with the traction sheave 1 is arranged above a ceiling 11 which closes off the elevator shaft.
  • the car 3 When driving, the car 3 is moved via the cable 2, which is driven by the motor-transmission-brake unit via the traction sheave 1.
  • the cable For the elevator system to work properly, it is necessary that the cable is laid over the traction sheave in a non-slip manner.
  • the car can also be moved by the handwheel 10 in the event of an emergency, repairs or checks.
  • 6 denotes an evaluation unit, which in the present exemplary embodiment comprises a personal computer 12, an input / output interface 13 and an interface module 14.
  • the dashed outline 6 ' is intended to indicate that the input / output interface 13 and the interface module 14 form a functional unit.
  • the personal computer has a screen 36 as a display device and an input keyboard 37.
  • the evaluation unit 6 is in each case connected via one of the lines 15 to 17 to a first distance sensor 7, which can be motionally connected with a cable of the cable 2, a second distance sensor 18, which is connected to the traction sheave 1 e.g.
  • the lines can be connected to movement by means of a system, and connected to a force measuring signal transmitter 8, the lines being connected to the evaluation unit via inputs provided on the interface module.
  • 9 designates lines via which the evaluation unit is connected to the control circuit 46 of the elevator system.
  • the lines 9, like the lines 15 to 17, are connected to inputs which are provided on the interface module 14.
  • the lines 9 are combined to form a 12-wire shielded cable, which at one end has a test that can be connected to the control circuit 46 of the elevator system connector and at the other end has a circuit board connector with a voltage protection circuit.
  • the interface module 14 comprises four modules. For electrical signals which are transmitted from the control circuit 46 via the lines 9 to the evaluation unit, a control sub-interface is provided which has an optocoupler for each input for a galvanic separation of the evaluation unit from the control circuit, one with a capacitive one to be operated with only one operating voltage Provided feedback operational amplifier for signal amplification and a Schmitt trigger. A largely symmetrical sensor sub-interface is provided for recording and preprocessing signals from the distance sensors and the force measuring signal transmitter. As a third module, the interface module 14 has a divider module for dividing the system clock of the personal computer 12. Finally, the interface module contains an acoustic signal transmitter which has a monoflop with a pulse width of approximately 500 ms and a downstream piezo beeper.
  • the input / output interface has a decoder, an input / output and a timer module.
  • the timer module contains a universally programmable counter, the clock input of which is connected to the system clock of the personal computer via the divider module of the interface module.
  • the distance sensor has a perforated disk 19 with light passage holes 20 arranged concentrically around the pivot point of the perforated disk at equal intervals.
  • the perforated disk is concentrically connected to a drive disk 21 provided with a guide slot for a driving cable rope.
  • the perforated disk 19 with the drive disk 21 has an axis of rotation 24 which is rotatably mounted in a holder 23.
  • 25 denotes a first and 26 denotes a second light barrier measuring device, the light rays of which pass through the perforated disk or can be interrupted by the perforated disk.
  • the distance between the two light barriers and the distance between the light passage holes on the perforated disk is selected so that when the perforated disk rotates in one direction for the signals of the two light barrier devices, the pulse diagrams shown in FIG. 5 with temporally offset pulses result.
  • the direction of rotation can be determined by evaluating the measurement signals emitted by both light barriers. Such an evaluation circuit is shown in FIG. 6. In addition to path impulses, the number of which is characteristic of the travel path of the car, the circuit also supplies a signal indicating the direction of movement of the car.
  • Fig. 12 shows an embodiment of a double-path transducer which combines the two transducers 7 and 18 in one unit.
  • the two distance sensors are displaceably supported against each other and can thus be pressed with the tread 45 against both the traction sheave and with the running groove 22 'against a supporting cable.
  • the mode of operation of the individual distance sensors corresponds to the sensor in FIGS. 3 and 4.
  • the force transducer has a helical compression spring 28 guided in a guide sleeve 27, which can be compressed by a pull rod 29 which has a disc 30 at one end against which the spring 28 comes into contact and an eyelet 31 at the other end.
  • 32 with a distance transducer is designated by which a displacement of the pull rod 29 against the guide sleeve 27 can be detected and thus a measurement signal for the force acting on the pull rod can be supplied.
  • the distance sensor 32 is shown separately in FIG. Like the distance sensor according to FIGS. 3 and 4, it has a perforated disk 19 'and two light barrier measuring devices 25' and 26 '.
  • the perforated disk 19 ' is connected via an axis of rotation 24' to a drive wheel 33 which comes to bear against the tie rod 29 and is driven by the tie rod.
  • FIG. 9 another embodiment of a force transducer 8 is shown, which differs from the embodiment of FIG. 7 in that a distance sensor is provided for detecting the displacement of the pull rod 29 'against the guide sleeve 27', one with the Drawbar 29 'connected, against the guide sleeve displaceable perforated strip 35 with equidistantly arranged in a line light passage holes 20'.
  • a first light barrier device 25 ′′ and a second light barrier device 26 ′′ are provided for scanning the through holes 20 ′.
  • the connection of the force transducer 8 to the cable 2 and its support on the ceiling 11 is analogous to FIG. 7.
  • the direction of movement of the drawbar can be determined.
  • FIG. 10 shows a further embodiment for a dynamometer 8, which corresponds in terms of arrangement to the embodiment according to FIG. 7 and differs from it in that the force between the point of application 34 and the elongated holes of the belt attachment 37 is not direct acts on the spring, but is deflected via the joint 35 and presses on the support balls 36 on the plate springs 38.
  • the plate springs 38 are guided through a sleeve 39 on the outside.
  • the transducer holder 40 is used Recording the distance sensor (dial gauge) 50 according to FIG. 11.
  • the distance sensor dial gauge
  • it has a perforated disk 19 and two light barrier measuring devices 26.
  • the perforated disk 19 is driven by the rack 42 via the gear 43.
  • a return spring serves to eliminate the play between gear 43 and rack 42.
  • this distance transducer can be fixed to the transducer receptacle 40 of the dynamometer FIG. 10 and scans the spring travel translated there by the lever ratio of the joint 35 - support ball 36 - transducer receptacle 40.
  • measurements of travel distances, speeds and accelerations of the car as a function of time or of the path can be carried out as a function of the signals of the control circuit of the elevator system that control the movement of the car carried out and recorded.
  • These curves can be output on the computer screen or on a printer. By comparing with the target curves, statements can be made about the effectiveness of the brake and safety gear.
  • FIG. 13 shows a typical course of a path (s) over time (t) curve (f) as it was recorded during a catching process. As shown in FIG. 13, this curve (f) is output on the screen or on the printer.
  • Two consecutive braking distance measurements can be used to calculate the braking distance of the car loaded with nominal load in the direction from. It is also possible to calculate the braking deceleration when the car is loaded with 1.5 times the nominal load. This is possible because these different braking distances (sleer from to sleer up) are caused by known mass differences. All other masses involved (including rotary) are equally involved in both experiments and can therefore be eliminated. Speeds can also be determined, since the respective times are also stored in a table in the computer for the corresponding routes. Two braking attempts with an empty car can therefore be used to calculate the braking distance or braking deceleration for any load. It is therefore possible to make a statement about the brake under load from the empty car.
  • the slip resistance (driving ability) of the cable can also be determined. 7 or 9 or 10 with one or more cables 2 of the cable pull with the aid of a suitable cable clamp 49.
  • the guide sleeve of the force transducer is fastened to a fixed point via a belt strap 47 and a cross member 48, expediently on the ceiling 11 closing the elevator shaft.
  • the tensile force must be increased in the slip test until either a determined limit value is reached and the signal generator emits a warning signal, or the rope or the ropes on the traction sheave begin to slide.
  • the onset of slides can be visually e.g. be determined by shifting applied markings or by evaluating the signals of the first distance sensor that can be connected to the cable pull and the second distance sensor that can be connected to the traction sheave.
  • both position transducers In order to be able to record path differences, both position transducers must either emit the same impulses for the same distances or be synchronized with a correction factor.
  • the two odometers are automatically calibrated with each measuring process. This is achieved as follows: At the beginning of the The braking process, therefore, before the brake is applied, the elevator moves at an almost constant speed. No additional forces act between the suspension cable and traction sheave. Both odometers travel the same route. If the number of pulses of the two travel meters is now put in relation to each other, this quotient is the synchronization factor of the two travel meters. This synchronization is implemented using software, for example.
  • the device described is also able to check the control circuit of the elevator by checking the chronological sequence of the control signals. E.g. the time it takes for the control to switch off the drive or to apply a brake after a safety switch has been opened can be determined.
  • the evaluation unit has a number of functional devices, some of which are implemented as software solutions.
  • a functional device is provided for determining the speed and / or acceleration values.
  • the measurement of the speed can be triggered by actuating the keyboard or it is triggered by signals from the control circuit of the elevator. Measurement results can be displayed on the screen of the personal computer and, if necessary, can be output as a complete test report on a printer.
  • the acoustic signal generator contained in the interface module 14 can be activated.
  • the screen can also be used to display instructions for operating the device.
  • the sensor interface causes the computer when an external event occurs, e.g. Advance the perforated disc to interrupt its work and update the corresponding internal memory for distance and possibly time.
  • an external event e.g. Advance the perforated disc to interrupt its work and update the corresponding internal memory for distance and possibly time.
  • timers and acoustic signal generators with the necessary control were accommodated in the sensor interface.
  • dispensing with these modules and instead, controlled by software, using the corresponding modules in the computer.
  • the device and the method according to the invention enable the travel movement of an elevator to be recorded very precisely with regard to the distance covered and the associated time. Accelerations and decelerations can be recorded in a very fine time grid.
  • the empty car can be braked during the upward travel, with an operator holding a distance sensor 7 against the running suspension cable before and during the deceleration.
  • the fact whether or not the suspension cable slips on the traction sheave can be visually assessed in this case by marking the position of the suspension cable on the traction sheave with a line before the deceleration.
  • the empty elevator car is either accelerated or decelerated.
  • the brake of the elevator is held in the standby position by a brake magnet that is constantly energized. If the power supply to the brake magnet is interrupted for the test procedure, the brake starts. The intended interruption of the power supply for the magnet can be used as a trigger for starting the measuring process.
  • the short period between the interruption of the power supply and the subsequent intervention of the brake can be used to synchronize the distance sensors for the traction sheave and for the rope. During this short period of time there is a constant speed in both parts. During this period, the two distance meters assigned to the support cable and the traction sheave are synchronized by setting the number of counts of the one distance meter in comparison to that of the second knife. The factor determined in this way is used to convert counting pulses from both sensors into sections. Any manufacturing tolerances between the two odometers as well as different wear and tear are automatically eliminated.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Braking Arrangements (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Recording Measured Values (AREA)

Claims (37)

1. Dispositif pour détecter des paramètres physiques, en particulier des paramètres de déplacement, d'un monte-charges et/ou d'un ascenseur, l'ascenseur présentant au moins un entraînement par câbles (2) guidé par une poulie motrice (1) et à l'une des extrémités duquel est suspendue une cabine d'ascenseur (3) tandis qu'un contre-poids (4) est suspendu à son autre extrémité, l'ascenseur étant entraîné par un moteur (5) qui est commandé par un circuit électrique et agit sur la poulie motrice (1), et comprenant un dispositif de freinage relié à la poulie motrice et commandé par le circuit (46), caractérisé en ce qu'il est prévu une unité d'évaluation (6) avec une horloge, en ce qu'il est prévu au moins un capteur de déplacement (7,18) qui communique avec l'entraînement par câbles (2) et/ou la poulie motrice (1) et est raccordé à une entrée de l'unité d'évaluation (6), et en ce que l'unité d'évaluation présente d'autres entrées pouvant être reliées à des points de commutation du circuit de commande (46) par lesquels passent les signaux commandant le déplacement de l'ascenseur.
2. Dispositif selon la revendication 1, caractérisé en ce que l'unité d'évaluation (6) présente un dispositif pour déterminer des valeurs de vitesse et/ou d'accélération.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'unité d'évaluation (6) présente un dispositif pour déclencher des opérations d'évaluation, par exemple la détermination de parcours, de vitesses et d'accélérations, par des signaux du circuit de commande (46).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'unité d'évaluation (6) présente un clavier d'entrée (37) pour déclencher des opérations d'évaluation, par exemple la détermination de valeurs de parcours et/ou de vitesses.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'unité d'évaluation (6) présente un dispositif d'affichage (36) pour visualiser des résultats d'évaluations.
6. Dispositif selon la revendication 5, caractérisé en ce que le dispositif d'affichage est un écran (36).
7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que l'unité d'évaluation (6) présente un dispositif d'affichage (36) pour visualiser des longueurs de courses de déplacement, des valeurs de vitesse et/ou d'accélération.
8. Dispositif selon l'une des revendications 5 à 7, caractérisé en ce que l'unité d'évaluation (6) présente un dispositif d'affichage (36) pour l'inscrire des indications de commande destinées à l'utilisateur du dispositif.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que l'unité d'évaluation (6) présente des dispositifs générateurs de signaux avertisseurs qui peuvent être déclenchés en fonction de résultats d'éva- lutations.
10. Dispositif selon la revendication 9, caractérisé en ce que les dispositifs générateurs de signaux avertisseurs sont des dispositifs générateurs de signaux audio.
11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que le capteur de déplacement (7, 18) présente un disque perforé (19) pouvant tourner en fonction de la longueur du déplacement à mesurer et au moins un barrage photoélectrique (25, 26) balayant le disque perforé.
12. Dispositif selon la revendication 11, caractérisé en ce que pour déterminer le sens de rotation, le barrage photoélectrique est réalisé sous forme de barrage photoélectrique double (25, 26).
13. Dispositif selon la revendication 11 ou 12, caractérisé en ce que le disque perforé (19) est entraîné par une poulie (21) pressée contre l'entraînement par câbles (2) et/ou par la poulie motrice.
14. Dispositif selon la revendication 13, caractérisé en ce que la poulie d'entraînement (21) présente une gorge de guidage (22) pour un câble porteur de l'entraînement par câbles (2).
15. Dispositif selon la revendication 13 ou 14, caractérisé en ce que la poulie d'entraînement (21) est en matière plastique.
16. Dispositif selon l'une des revendications 1 à 15, caractérisé en ce qu'il est prévu un transmetteur de signal de force (8) qui peut être raccordé à une entrée de l'unité d'évaluation.
17. Dispositif selon la revendication 16, caractérisé en ce que le transmetteur de signal de force (8) est un transmetteur à ressort.
18. Dispositif selon la revendication 17, caractérisé en ce que le transmetteur à ressort présente au moins un ressort spiral (28) ou un ressort Belleville (38) guidé.
19. Dispositif selon la revendication 16 ou 18, caractérisé en ce que la modification de la course du ressort peut être détectée par un capteur de déplacement (32).
20. Dispositif selon la revendication 19, caractérisé en ce que le capteur de déplacement (32) présente une bande de codage (35) qui est munie de fenêtres (20') pour le passage de la lumière disposées régulièrement et est destinée à être balayée par au moins un barrage photoélectrique.
21. Dispositif selon la revendication 20, caractérisé en ce que la bande de codage (35) est une bande de tôle munie de trous disposés régulièrement.
22. Dispositif selon la revendication 20 ou 21, caractérisé en ce que la bande de codage (35) est balayée par un barrage photoélectrique double (25", 26").
23. Dispositif selon la revendication 19, caractérisé en ce que le capteur de déplacement présente un disque perforé (19) ou palpeur à cadran (*) qui peut tourner en fonction de la modification de la course du ressort et est destiné à être balayé par au moins un barrage photoélectrique, de préférence par un barrage photoélectrique double.
24. Dispositif selon l'une des revendications 1 à 23, caractérisé en ce que l'unité d'évaluation (6) comprend un calculateur, par exemple un ordinateur personnel (12).
25. Dispositif selon la revendication 24, caractérisé en ce que l'unité d'évaluation (6) présente un composant-interface (14) monté en amont d'un interface d'entrée/de sortie (13) de l'ordinateur personnel (12) et destiné à un traitement préalable des signaux du dispositif de commande et des signaux de mesure du capteur de déplacement (7, 18) et du transmetteur de signal de force (8).
26. Dispositif selon la revendication 25, caractérisé en ce que le composant-interface (14) présente du côté entrée des optocoupleurs pour une séparation galvanique du circuit de commande par rapport au composant-interface.
27. Dispositif selon la revendication 25 ou 26, caractérisé en ce que le composant-interface (14) présente des amplificateurs opérationnels et des triggers de Schmitt pour l'adaptation des niveaux des signaux de commande.
28. Dispositif selon l'une des revendications 25 à 27, caractérisé en ce que le composant-interface (14) présente un trigger de Schmitt pour la conformation des impulsions des signaux de déplacement et de force dont la sortie est placée sur une bascule monostable de faible largeur d'impulsions.
29. Dispositif selon l'une des revendications 25 à 29, caractérisé en ce que le composant-interface (14) présente un circuit logique pour déterminer la direction de déplacement de l'ascenseur et la direction de la course du ressort.
30. Dispositif selon l'une des revendications 25 à 29, caractérisé en ce que le composant-interface (14) comprend un transmetteur de signal audio.
31. Dispositif selon l'une des revendications 25 à 30, caractérisé en ce que l'interface d'entrée/de sortie (13) comprend un décodeur, un composant d'entrée/de sortie parallèle et une horloge.
32. Dispositif selon l'une des revendications 25 à 31, caractérisé en ce que le composant-interface (14) est relié au circuit de commande par un câble blindé.
33. Dispositif selon la revendication 32, caractérisé en ce que le câble blindé est muni du côté commande d'une fiche de diagnostic.
34. Dispositif selon la revendication 33, caractérisé en ce qu'un câble-adaptateur est muni sur un côté d'une douille de diagnostic et est équipé sur l'autre côté de bornes qui établissent la communication avec des points de mesure de la commande.
35. Méthode pour détecter des paramètres physiques, en particulier des paramètres de déplacement d'un monte-charges et/ou d'un ascenseur, l'ascenseur présentant au moins un entraînement par câbles (2) guidé par une poulie motrice (1) et à l'une des extrémités duquel est suspendue une cabine d'ascenseur (3) tandis qu'un contre-poids (4) est suspendu à son autre extrémité, la poulie motrice étant entraînée par un moteur (5) commandé par un circuit électrique et étant reliée à un dispositif de freinage (5) commandé par un circuit de commande, caractérisée en ce que pour contrôler l'adhérence du câble (2) sur la poulie motrice (1) pendant le déplacement normal de l'ascenseur, le câble (2) et partant, également la cabine d'ascenseur (3) et le contre-poids (4) sont accélérés ou ralentis à dessein et les paramètres de déplacement du câble (2) et de la poulie motrice (1) sont détectés séparément en fonction du temps.
36. Méthode selon la revendication 35, caractérisée en ce que les paramètres de déplacement du câble (2) et de la poulie motrice (1) sont comparés avec un paramètre de déplacement limite prédéterminé, la capacité motrice de la poulie motrice (1) étant dans tous les cas assurée lorsque cette valeur limite est dépassée.
37. Méthode selon la revendication 35 ou 36, caractérisée en ce que lorsque les paramètres de déplacement du câble (2) et de la poulie motrice (1) sont différents, la capacité motrice de la poulie motrice est déterminée sur la base de la différence mesurée.
EP90105566A 1989-04-07 1990-03-23 Dispositif et méthode pour détecter des paramètres physiques d'un élévateur Expired - Lifetime EP0391174B2 (fr)

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DE8904375U 1989-04-07
DE8904375U DE8904375U1 (de) 1989-04-07 1989-04-07 Vorrichtung zum Erfassen von physikalischen Kenngrößen eines Aufzugs

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EP0391174A1 EP0391174A1 (fr) 1990-10-10
EP0391174B1 true EP0391174B1 (fr) 1992-01-29
EP0391174B2 EP0391174B2 (fr) 1997-10-15

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US (1) US5578801A (fr)
EP (1) EP0391174B2 (fr)
JP (2) JPH04506502A (fr)
AT (1) ATE72203T1 (fr)
DE (2) DE8904375U1 (fr)
DK (1) DK0391174T3 (fr)
ES (1) ES2029929T5 (fr)
GR (2) GR3004164T3 (fr)
WO (1) WO1990011958A1 (fr)

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Also Published As

Publication number Publication date
ES2029929T3 (es) 1992-10-01
EP0391174B2 (fr) 1997-10-15
DE8904375U1 (de) 1989-07-27
JPH04506502A (ja) 1992-11-12
US5578801A (en) 1996-11-26
DK0391174T3 (da) 1992-03-23
DE59000040D1 (de) 1992-03-12
ATE72203T1 (de) 1992-02-15
WO1990011958A1 (fr) 1990-10-18
ES2029929T5 (es) 1998-02-01
EP0391174A1 (fr) 1990-10-10
GR3004164T3 (en) 1993-03-31
GR3029520T3 (en) 1999-06-30
JPH0367879A (ja) 1991-03-22

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