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WO2013004867A1 - Method for operating a device to prevent uncontrolled movement of a lift car - Google Patents

Method for operating a device to prevent uncontrolled movement of a lift car Download PDF

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Publication number
WO2013004867A1
WO2013004867A1 PCT/ES2012/070232 ES2012070232W WO2013004867A1 WO 2013004867 A1 WO2013004867 A1 WO 2013004867A1 ES 2012070232 W ES2012070232 W ES 2012070232W WO 2013004867 A1 WO2013004867 A1 WO 2013004867A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabin
indicates
signal
electromagnetic actuator
uncontrolled movement
Prior art date
Application number
PCT/ES2012/070232
Other languages
Spanish (es)
French (fr)
Inventor
Marti Escofet Esteve
Original Assignee
Aplicaciones Electromecanicas Gervall, S.A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aplicaciones Electromecanicas Gervall, S.A filed Critical Aplicaciones Electromecanicas Gervall, S.A
Priority to EP12807855.7A priority Critical patent/EP2727872A4/en
Publication of WO2013004867A1 publication Critical patent/WO2013004867A1/en

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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
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • 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
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors

Definitions

  • the object of the present invention is an operating procedure for an uncontrolled movement protection device of an elevator car.
  • a control module is configured to act on the device to cause the elevator car to be blocked at a time when it is stopped at a floor.
  • Speed limiters intended for the operation of cable suspended transport means, such as elevators, cable cars, etc. are well known. Examples of speed limiters are described in patent ES 2 306 623, the holder of which is the same as that of the present application.
  • the present invention is directed to a method of operation of a certain device against uncontrolled movement of an elevator car, so that the device blocks the movement of said car only at times when it is necessary to maintain the safety of the people present in the cabin.
  • the particular device against uncontrolled movement of an elevator car that is desired to be controlled by the method of the invention is configured to be coupled to one of such speed limiters, and comprises an electromagnetic actuator whose deactivation causes the elevator car to be interlocked. Thanks to a mechanism that will be described in more detail later in this document. On the contrary, when the electromagnetic actuator is activated, that is, it receives power, the movement of the cabin is allowed.
  • the method of the invention for operating the device against uncontrolled movement of the cabin comprises the following operations:
  • Fig. 1 shows a front elevation view of a speed limiter for an elevator that includes the uncontrolled movement protection device.
  • Fig. 2 shows a front elevation view of the speed limiter with the protection device.
  • Fig. 3 shows an exploded side elevation view of the speed limiter and the protection device.
  • Fig. 4 shows a sectioned side elevation view of the limiter with the protection device.
  • Fig. 5 shows a diagram of a module capable of carrying out the process of the present invention.
  • Figs. 1 and 2 show a speed limiter, indicated generally with reference (1), comprising a pulley (2) on an axis (3) in which a cable or the like (C) and related retention means slide to the pulley (2).
  • a bench body (4) with two facing wings serves to support the shaft (3).
  • the operation of the retention means of this speed limiter (1) may be the same as described in the Spanish patent ES 2306623.
  • This speed limiter is further provided with a device for detecting the movement of a lift cabin.
  • the device (20) against uncontrolled movement which has been shown separately from the speed limiter in Fig. 3, comprises a toothed crown (5) that is integrally coupled to the pulley (2) of the limiter (in one embodiment alternatively it can be an integral part of the pulley itself), a tilting support (6) attachable to the axis (3) of the speed limiter (1) such that it performs a tilting displacement with respect to said axis (3), as indicated by the arrow (f) in Fig. 2, which includes a locking mechanism that acts on the toothed crown (5) and an electric detector (7) associated with the locking mechanism and the movement path of the tilting support (6).
  • the tilting support (6) is constituted by an elongated body that is fixed at its top by means of a hole through which the shaft (3) passes.
  • a predetermined angular displacement stroke caused by the movement of the pulley (2) and therefore from the elevator car such as a distance defined by a maximum angle, is capable of sending a motion detection signal through an electrical switch (7) and subsequently causing a mechanical interlocking of the speed limiter, thereby causing the pull on the cable or the like of the speed limiter and consequently the wedging of the parachute (retention means) provided.
  • the tilting support (6) may optionally include tensioning means that are coupled to the housing body (4) of the speed limiter 5 (1).
  • the locking mechanism mainly comprises a locking piece (10) attachable to the gear ring (5) for blocking, a trigger (1 1) linked to the electromagnetic actuator (8) (electromagnet, coil or similar) that is attached to the locking piece (1 0).
  • the trigger (1 1) has an axis that is externally provided with a coil spring (not represented for reasons of clarity).
  • Guiding means are provided in the tilting support by which the locking piece moves linearly. Specifically, there are provided two grooved portions (12) practiced alignedly in the body of the tilting support (6) through which a guide body (13) fixed to the locking piece (10) passes in each of them.
  • This guide body (13) consists in the present embodiment in a metal cylindrical body fixed by means of fasteners.
  • the tilting support (6) additionally has an elongated section
  • This elongated section (60) has two mechanical stops (14) that are fixed to the tilting support (6).
  • the tensioning means mentioned above may be coupled to the elongated section (60) of the tilting support (6).
  • the locking piece (1 0) has the end (101) facing the toothed crown (5) a tooth-like shape that facilitates the coupling in the space between teeth of the toothed crown (5).
  • the bench body (4) it is constituted by two fins (4a, 4b) facing each other between which the shaft (3) is supported, which include stop means to limit the angular travel of the tilting support (6), which they consist of a groove (40) with an arcuate path practiced on one of the fins of the bench body.
  • the two mechanical stops (14) define the maximum travel of the tilting support with respect to a groove (40).
  • the flap (4a) having the aforementioned groove (40) may include a pin or the like in which the tensioning means are fastened in the case of being present.
  • FIG. 5 shows a diagram of a control module (100) designed to carry out the process of the invention.
  • This control module (100) has the following inputs / outputs. :
  • E1 Indicator signal input that the cabin is at floor level.
  • E2 Indicator signal input that the cabin door is open.
  • the entrance (E1) indicates that the cabin is at the level of a floor and, simultaneously, the entrance (E2) indicates that the cabin door is open, we are in the situation where there are possibly people entering and leaving of the cabin.
  • the control module (100) automatically cuts off the power supplied through the output (S) to the electromagnetic actuator (8). Consequently, the force exerted by the spring (not shown) causes the rise of the blocking piece (10), its end (101) being introduced between the crown teeth (5) to achieve the blockage of the cabin, thus preventing possible accidents
  • control module (100) feeds back the electromagnetic actuator (8), so that the electromagnetic force exceeds the force exerted by the spring and the locking part (10) descends again, releasing the crown (5) and thus allowing the movement of the elevator car.
  • the control module (100) can be powered through the input (A), or batteries (not shown) can be used through the input (B).
  • the button (P) allows the electromagnetic actuator (8) to be temporarily fed to unlock the cab in case of a drop in the supply voltage.
  • This control module (100) may, in principle, be constituted by a microcontroller, a microprocessor, a DSP, an FPGA, or others, although in this particular example it is an electronic board. In any case, the control module (100) will be designed to carry out the process of the invention or, in the case of a programmable device, it will have stored the necessary instructions to carry out the process of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Elevator Door Apparatuses (AREA)
  • Elevator Control (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The invention relates to a method for operating a device for protecting against uncontrolled movement of a lift car, in particular with a control module configured such as to actuate the device in order to block the lift car whenever the latter is halted at a floor level.

Description

PROCEDIMIENTO DE OPERACIÓN DE UN DISPOSITIVO CONTRA EL OPERATING PROCEDURE OF A DEVICE AGAINST THE
MOVIMIENTO INCONTROLADO DE LA CABINA DE UN ELEVADOR UNCONTROLLED MOVEMENT OF THE ELEVATOR'S CAB
El objeto de la presente invención es un procedimiento de operación para un dispositivo de protección contra el movimiento incontrolado de una cabina de un elevador. En particular, un módulo de control está configurado para actuar sobre el dispositivo para provocar el bloqueo de la cabina del elevador en los momentos en que ésta se encuentra detenida a la altura de un piso. The object of the present invention is an operating procedure for an uncontrolled movement protection device of an elevator car. In particular, a control module is configured to act on the device to cause the elevator car to be blocked at a time when it is stopped at a floor.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Son bien conocidos los limitadores de velocidad destinados para el funcionamiento de medios de transporte suspendidos por cable, tales como ascensores, teleféricos, etc. Ejemplos de limitadores de velocidad se describen en la patente ES 2 306 623, cuyo titular es el mismo que el de la presente solicitud. Speed limiters intended for the operation of cable suspended transport means, such as elevators, cable cars, etc. are well known. Examples of speed limiters are described in patent ES 2 306 623, the holder of which is the same as that of the present application.
Como consecuencia de cambios de normativa y actualizaciones en lo que se refiere a los componentes de seguridad en elevadores, los fabricantes de componentes han desarrollado nuevos componentes que, incorporados a los limitadores de velocidad, permiten aumentar las medidas de seguridad de un elevador. Entre estos componentes se encuentran los dispositivos contra el movimiento incontrolado de la cabina. As a result of changes in regulations and updates in terms of elevator safety components, component manufacturers have developed new components that, when incorporated into speed limiters, allow the safety measures of an elevator to be increased. Among these components are the devices against uncontrolled movement of the cabin.
Sin embargo, debido a que existen diferentes tipos y fabricantes de limitadores de velocidad, cada uno de ellos requiere un dispositivo diferente contra el movimiento incontrolado de la cabina. DESCRIPCIÓN DE LA INVENCIÓN La presente invención está dirigida a un procedimiento de operación de un determinado dispositivo contra el movimiento incontrolado de la cabina de un elevador, de modo que el dispositivo bloquea el movimiento de dicha cabina únicamente en los momentos en que es necesario para mantener la seguridad de las personas presentes en la cabina. However, because there are different types and manufacturers of speed limiters, each of them requires a different device against uncontrolled movement of the cabin. DESCRIPTION OF THE INVENTION The present invention is directed to a method of operation of a certain device against uncontrolled movement of an elevator car, so that the device blocks the movement of said car only at times when it is necessary to maintain the safety of the people present in the cabin.
Aunque en el mercado existen diferentes tipos de limitadores de velocidad, casi todos ellos tienen unos elementos comunes: una polea instalada sobre un eje en la cual se desliza un cable o similar, y unos medios de retención vinculados a la polea para detener o controlar el movimiento de la cabina cuando sea necesario. El particular dispositivo contra el movimiento incontrolado de la cabina de un elevador que se desea controlar mediante el procedimiento de la invención está configurado para acoplarse a uno de tales limitadores de velocidad, y comprende un actuador electromagnético cuya desactivación provoca el enclavamiento de la cabina del elevador gracias a un mecanismo que se describirá con mayor detalle más adelante en el presente documento. Por el contrario, cuando el actuador electromagnético está activado, es decir, recibe alimentación, se permite el movimiento de la cabina. Pues bien, el procedimiento de la invención para operar el dispositivo contra el movimiento incontrolado de la cabina comprende las siguientes operaciones: Although there are different types of speed limiters on the market, almost all of them have common elements: a pulley installed on an axis on which a cable or similar slides, and a retention means linked to the pulley to stop or control the cabin movement when necessary. The particular device against uncontrolled movement of an elevator car that is desired to be controlled by the method of the invention is configured to be coupled to one of such speed limiters, and comprises an electromagnetic actuator whose deactivation causes the elevator car to be interlocked. thanks to a mechanism that will be described in more detail later in this document. On the contrary, when the electromagnetic actuator is activated, that is, it receives power, the movement of the cabin is allowed. Well, the method of the invention for operating the device against uncontrolled movement of the cabin comprises the following operations:
1 ) Monitorizar una primera señal que indica si la cabina está al nivel de un piso y una segunda señal que indica si la puerta de la cabina está abierta. Estas dos señales se pueden adquirir utilizando una gran variedad de medios de adquisición, como por ejemplo sensores de proximidad por inducción, ultrasonidos, infrarrojos, etc. 1) Monitor a first signal that indicates if the cabin is at the level of a floor and a second signal that indicates if the cabin door is open. These two signals can be acquired using a wide variety of acquisition means, such as induction proximity sensors, ultrasound, infrared, etc.
2) Alimentar el actuador electromagnético siempre que se detecte que la puerta está cerrada. En efecto, cuando la puerta está cerrada en principio se puede suponer que el funcionamiento del elevador es normal, tanto si la cabina está al nivel del piso como si no. En consecuencia, no es necesario retirar por sistema la alimentación al actuador electromagnético para provocar el bloqueo de la cabina. 2) Feed the electromagnetic actuator whenever it is detected that the door is closed. Indeed, when the door is closed in In principle, it can be assumed that the operation of the elevator is normal, whether or not the cabin is at ground level. Consequently, it is not necessary to remove the power to the electromagnetic actuator by system to cause the cabin to block.
3) Cuando la primera señal indica que la puerta está abierta y además la segunda señal indica que la cabina está al nivel de un piso, detener la alimentación al actuador electromagnético. Este es el caso en que posiblemente hay personas entrando o saliendo del elevador, y por tanto es recomendable bloquear la cabina para impedir cualquier eventual movimiento de ascenso o descenso. 3) When the first signal indicates that the door is open and also the second signal indicates that the cabin is level with one floor, stop the power to the electromagnetic actuator. This is the case in which there are possibly people entering or leaving the elevator, and therefore it is advisable to block the cabin to prevent any possible movement of ascent or descent.
BREVE DESCRIPCIÓN DE LOS DIBUJOS La Fig. 1 muestra una vista en alzado frontal de un limitador de velocidad para un elevador que incluye el dispositivo de protección contra el movimiento incontrolado. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a front elevation view of a speed limiter for an elevator that includes the uncontrolled movement protection device.
La Fig. 2 muestra una vista en alzado frontal del limitador de velocidad con el dispositivo de protección. Fig. 2 shows a front elevation view of the speed limiter with the protection device.
La Fig. 3 muestra una vista explosionada en alzado lateral seccionado del limitador de velocidad y el dispositivo de protección. La Fig. 4 muestra una vista en alzado lateral seccionado del limitador con el dispositivo de protección. Fig. 3 shows an exploded side elevation view of the speed limiter and the protection device. Fig. 4 shows a sectioned side elevation view of the limiter with the protection device.
La Fig. 5 muestra un esquema de un módulo capaz de llevar a cabo el procedimiento de la presente invención. Fig. 5 shows a diagram of a module capable of carrying out the process of the present invention.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE En primer lugar, se describe con detalle en limitador (1 ) de velocidad y un ejemplo de dispositivo (20) contra el movimiento incontrolado de la cabina de un elevador operable mediante el módulo de control de la invención. Una vez descritos estos elementos, se describirá un ejemplo del procedimiento de la invención. DESCRIPTION OF A PREFERRED EMBODIMENT First, it is described in detail in a speed limiter (1) and an example of a device (20) against the uncontrolled movement of the cabin of an elevator operable by the control module of the invention. Once these elements have been described, an example of the process of the invention will be described.
Las Figs. 1 y 2 muestran un limitador de velocidad, indicado de forma general con la referencia (1 ), que comprende una polea (2) sobre un eje (3) en la cual se desliza un cable o similar (C) y medios de retención vinculados a la polea (2). Un cuerpo bancada (4) con dos aletas enfrentadas sirve para soportar el eje (3). El funcionamiento de los medios de retención de este limitador de velocidad (1 ) puede ser el mismo que se describe en la patente española ES 2306623. Este limitador de velocidad está provisto además de un dispositivo para detectar el movimiento de una cabina elevadora. Figs. 1 and 2 show a speed limiter, indicated generally with reference (1), comprising a pulley (2) on an axis (3) in which a cable or the like (C) and related retention means slide to the pulley (2). A bench body (4) with two facing wings serves to support the shaft (3). The operation of the retention means of this speed limiter (1) may be the same as described in the Spanish patent ES 2306623. This speed limiter is further provided with a device for detecting the movement of a lift cabin.
El dispositivo (20) contra el movimiento incontrolado, que se ha representado separado del limitador de velocidad en la Fig. 3, comprende una corona dentada (5) que está acoplada de forma solidaria a la polea (2) del limitador (en una realización alternativa puede ser parte integrante de la propia polea), un soporte basculante (6) acoplable al eje (3) del limitador de velocidad (1 ) tal que realiza un desplazamiento basculante respecto a dicho eje (3), tal como se indica mediante la flecha (f) en la Fig. 2, que incluye un mecanismo de bloqueo que actúa sobre la corona dentada (5) y un detector eléctrico (7) asociado con el mecanismo de bloqueo y la trayectoria de movimiento del soporte basculante (6). Como puede verse, el soporte basculante (6) está constituido por un cuerpo alargado que se fija por su parte superior mediante un orificio por el que pasa el eje (3). Cuando el soporte basculante (6) ha realizado una carrera de desplazamiento angular predeterminada provocada por el movimiento de la polea (2) y por lo tanto de la cabina del elevador, como puede ser una distancia definido por un ángulo máximo, es apto para enviar una señal de detección de movimiento a través de un conmutador eléctrico (7) y posteriormente provocar un enclavamiento mecánico del limitador de velocidad, con lo cual provoca la tirada sobre el cable o similar del limitador de velocidad y por consiguiente el acuñamiento del paracaídas (medios de retención) previsto. The device (20) against uncontrolled movement, which has been shown separately from the speed limiter in Fig. 3, comprises a toothed crown (5) that is integrally coupled to the pulley (2) of the limiter (in one embodiment alternatively it can be an integral part of the pulley itself), a tilting support (6) attachable to the axis (3) of the speed limiter (1) such that it performs a tilting displacement with respect to said axis (3), as indicated by the arrow (f) in Fig. 2, which includes a locking mechanism that acts on the toothed crown (5) and an electric detector (7) associated with the locking mechanism and the movement path of the tilting support (6). As can be seen, the tilting support (6) is constituted by an elongated body that is fixed at its top by means of a hole through which the shaft (3) passes. When the tilting support (6) has made a predetermined angular displacement stroke caused by the movement of the pulley (2) and therefore from the elevator car, such as a distance defined by a maximum angle, is capable of sending a motion detection signal through an electrical switch (7) and subsequently causing a mechanical interlocking of the speed limiter, thereby causing the pull on the cable or the like of the speed limiter and consequently the wedging of the parachute (retention means) provided.
El soporte basculante (6) puede incluir opcionalmente unos medios tensores que están acoplados al cuerpo carcasa (4) del limitador 5 de velocidad (1 ). The tilting support (6) may optionally include tensioning means that are coupled to the housing body (4) of the speed limiter 5 (1).
En lo que se refiere al mecanismo de bloqueo comprende principalmente una pieza de bloqueo (10) acoplable a la corona dentada (5) para realizar su bloqueo, un disparador (1 1 ) vinculado con el actuador electromagnético (8) (electroimán, bobina o similar) que está unido a la pieza de bloqueo (1 0). With regard to the locking mechanism, it mainly comprises a locking piece (10) attachable to the gear ring (5) for blocking, a trigger (1 1) linked to the electromagnetic actuator (8) (electromagnet, coil or similar) that is attached to the locking piece (1 0).
El disparador (1 1 ) presenta un eje que está exteriormente provisto de un muelle helicoidal (no representado por motivos de claridad). The trigger (1 1) has an axis that is externally provided with a coil spring (not represented for reasons of clarity).
Se proporcionan medios de guiado en el soporte basculante por los cuales se desplaza linealmente la pieza de bloqueo. En concreto se proporcionan dos porciones ranuradas (12) practicadas de forma alineada en el cuerpo del soporte basculante (6) por las que transcurren en cada una de las ellas un cuerpo guía (13) fijado a la pieza de bloqueo (10). Este cuerpo guía (13) consiste en la presente realización en un cuerpo cilindrico metálico fijado por medio de elementos de tornillería. El soporte basculante (6) presenta adicionalmente un tramo alargadoGuiding means are provided in the tilting support by which the locking piece moves linearly. Specifically, there are provided two grooved portions (12) practiced alignedly in the body of the tilting support (6) through which a guide body (13) fixed to the locking piece (10) passes in each of them. This guide body (13) consists in the present embodiment in a metal cylindrical body fixed by means of fasteners. The tilting support (6) additionally has an elongated section
(60), unido a éste por elementos de tornillería, que tiene en su reborde superior un rebaje arqueado (61 ) de forma centrada, en el que el tramo alargado (60) es susceptible de hacer tope con un interruptor (70) que sobresale de la parte inferior del conmutador eléctrico (7). Este tramo alargado (60) presenta dos topes mecánicos (14) que están fijados al soporte basculante (6). (60), attached to it by hardware elements, which it has on its flange an arcuate recess (61) in a central way, in which the elongated section (60) is capable of abutting with a switch (70) protruding from the bottom of the electrical switch (7). This elongated section (60) has two mechanical stops (14) that are fixed to the tilting support (6).
Los medios tensores citados anteriormente pueden estar acoplados al tramo alargado (60) del soporte basculante (6). La pieza de bloqueo (1 0) presenta el extremo (101 ) que está enfrentado a la corona dentada (5) una forma a modo de diente que facilita el acoplamiento en el espacio existente entre dientes de la corona dentada (5). The tensioning means mentioned above may be coupled to the elongated section (60) of the tilting support (6). The locking piece (1 0) has the end (101) facing the toothed crown (5) a tooth-like shape that facilitates the coupling in the space between teeth of the toothed crown (5).
Volviendo de nuevo al cuerpo bancada (4) está constituido por dos aletas (4a, 4b) enfrentadas entre las cuales se soporta el eje (3), que comprenden medios de tope para limitar el recorrido angular del soporte basculante (6), los cuales consisten en una ranura (40) de trayectoria arqueada practicada en una de las aletas del cuerpo bancada. Los dos topes mecánicos (14) definen el recorrido máximo del soporte basculante con respecto a una ranura (40). Returning back to the bench body (4) it is constituted by two fins (4a, 4b) facing each other between which the shaft (3) is supported, which include stop means to limit the angular travel of the tilting support (6), which they consist of a groove (40) with an arcuate path practiced on one of the fins of the bench body. The two mechanical stops (14) define the maximum travel of the tilting support with respect to a groove (40).
La aleta (4a) que presenta la ranura (40) anteriormente mencionada puede incluir un pasador o similar en el que se sujetan los medios de tensado en el caso de estar presentes. The flap (4a) having the aforementioned groove (40) may include a pin or the like in which the tensioning means are fastened in the case of being present.
El funcionamiento del dispositivo de detección según la invención y descrito en el limitador de velocidad (1 ) es el siguiente: The operation of the detection device according to the invention and described in the speed limiter (1) is as follows:
En el momento en el que una cabina de un elevador se detiene al nivel de un piso, se corta el paso de flujo de corriente eléctrica hacia la bobina de modo que empuja el elemento de bloqueo (10) hacia arriba, por acción de un muelle, hasta hacer tope con la corona dentada (5) (posición representada en la figura 1 ). Cuando el dispositivo se encuentra en esta posición, en el caso de producirse un desplazamiento de la cabina, la corona dentada (5) gira por efecto del giro de la polea (2), arrastrando el soporte basculante con su mecanismo de bloqueo (1 0) incorporado. En esta situación, el interruptor (70) se desplaza hacia arriba de modo que provoca que el conmutador eléctrico (7) envía una señal informando de la existencia de un movimiento de desplazamiento que es recibida por una unidad de control del ascensor que accionará los medios que crea conveniente para detener la cabina del elevador. En el caso de que este desplazamiento de la cabina, ya sea con las puertas abiertas o cerradas, no se detenga, el soporte basculante (6) colisionará en uno de los extremos de la ranura (40) provocando la parada de la polea (2) del limitador de velocidad con el tope (14) por acción de la pieza de bloqueo (10) y la corona dentada (5) y, por consiguiente, el tiro sobre el cable del limitador de velocidad. Este tiro sobre el cable del limitador provoca el accionamiento del paracaídas ocasionando la parada de la cabina y su permanencia parada. At the moment in which a cabin of an elevator stops at the level of a floor, the flow of electric current to the coil is cut so that it pushes the blocking element (10) upwards, by the action of a spring, until it stops with the toothed crown (5) (position shown in figure 1). When the device is in this position, in case of a displacement of the cabin, the toothed crown (5) rotates due to the rotation of the pulley (2), dragging the tilting support with its locking mechanism (1 0 ) Incorporated. In this situation, the switch (70) moves up so that it causes the electrical switch (7) to send a signal informing of the existence of a movement of movement that is received by an elevator control unit that will activate the means which it deems convenient to stop the elevator car. In the event that this displacement of the cabin, whether with the doors open or closed, does not stop, the tilting support (6) will collide at one end of the groove (40) causing the pulley to stop (2 ) of the speed limiter with the stop (14) by action of the locking piece (10) and the toothed crown (5) and, consequently, the draft on the speed limiter cable. This shot on the cable of the limiter causes the parachute to operate causing the cab to stop and stay stopped.
Por último, la Fig. 5 muestra un esquema de un módulo de control (100) diseñado para llevar a cabo el procedimiento de la invención. Este módulo de control (100) presenta las siguientes entradas/salidas. : Finally, Fig. 5 shows a diagram of a control module (100) designed to carry out the process of the invention. This control module (100) has the following inputs / outputs. :
E1 Entrada de la señal indicadora de que la cabina se encuentra al nivel del piso. E1 Indicator signal input that the cabin is at floor level.
E2 Entrada de la señal indicadora de que la puerta de la cabina está abierta.  E2 Indicator signal input that the cabin door is open.
S Salida de alimentación al actuador electromagnético (8) del dispositivo contra el movimiento incontrolado descrito previamente.  S Power output to the electromagnetic actuator (8) of the device against uncontrolled movement described previously.
A Entrada de alimentación al módulo de control (100).  A Power input to the control module (100).
B Entrada de alimentación por baterías al módulo de control (100). C Salida de control del estado del actuador electromagnético (8).B Battery power input to the control module (100). C Status control output of the electromagnetic actuator (8).
C Entrada conectada al conmutador eléctrico (9) que indica que el actuador electromagnético (8) está activado. Este conmutador (9) se conecta en el módulo de control (100) y desde este a la "unidad de control" o cuadro de maniobra del ascensor. Solo cuando este contacto esté activado, y por tanto el limitador puede girar libremente, se permite el movimiento del ascensor. C Input connected to the electrical switch (9) that indicates that the electromagnetic actuator (8) is activated. This switch (9) is connected in the control module (100) and from this to the "control unit" or control panel of the elevator. Only when this contact is activated, and therefore the limiter can rotate freely, the movement of the elevator is allowed.
Así, cuando la entrada (E1 ) indica que la cabina se encuentra al nivel de un piso y, simultáneamente, la entrada (E2) indica que la puerta de la cabina está abierta, estamos en la situación en que posiblemente haya personas entrando y saliendo de la cabina. El módulo de control (100) automáticamente corta la alimentación suministrada a través de la salida (S) al actuador electromagnético (8). En consecuencia, la fuerza ejercida por el muelle (no mostrado) provoca el ascenso de la pieza de bloqueo (10), introduciéndose su extremo (101 ) entre los dientes de la corona (5) para conseguir el bloqueo de la cabina, impidiéndose así posibles accidentes. Thus, when the entrance (E1) indicates that the cabin is at the level of a floor and, simultaneously, the entrance (E2) indicates that the cabin door is open, we are in the situation where there are possibly people entering and leaving of the cabin. The control module (100) automatically cuts off the power supplied through the output (S) to the electromagnetic actuator (8). Consequently, the force exerted by the spring (not shown) causes the rise of the blocking piece (10), its end (101) being introduced between the crown teeth (5) to achieve the blockage of the cabin, thus preventing possible accidents
Una vez la puerta se ha cerrado, el módulo de control (100) vuelve a alimentar el actuador electromagnético (8), de modo que la fuerza electromagnética supera la fuerza ejercida por el muelle y la pieza de bloqueo (10) desciende de nuevo, liberando la corona (5) y permitiendo por tanto el movimiento de la cabina del elevador. La alimentación del módulo de control (100) puede realizarse a través de la entrada (A), o bien se pueden utilizar baterías (no mostradas) a través de la entrada (B). Once the door has been closed, the control module (100) feeds back the electromagnetic actuator (8), so that the electromagnetic force exceeds the force exerted by the spring and the locking part (10) descends again, releasing the crown (5) and thus allowing the movement of the elevator car. The control module (100) can be powered through the input (A), or batteries (not shown) can be used through the input (B).
La entrada (C) del módulo de control (1 00), a través del correspondiente contacto, indica el estado actual del actuador electromagnético (8). Por último, el pulsador (P) permite alimentar temporalmente el actuador electromagnético (8) para desbloquear la cabina en casos de caída de la tensión de alimentación. The input (C) of the control module (1 00), through the corresponding contact, indicates the current state of the electromagnetic actuator (8). Finally, the button (P) allows the electromagnetic actuator (8) to be temporarily fed to unlock the cab in case of a drop in the supply voltage.
Este módulo de control (100) puede, en principio, estar constituido por un microcontrolador, un microprocesador, un DSP, una FPGA, u otros, aunque en este ejemplo concreto se trata de una placa electrónica. En cualquier caso, el módulo de control (100) estará diseñado para llevar a cabo el procedimiento de la invención o, en caso de tratarse de un dispositivo programable, tendrá almacenadas las instrucciones necesarias para llevar a cabo el procedimiento de la invención. This control module (100) may, in principle, be constituted by a microcontroller, a microprocessor, a DSP, an FPGA, or others, although in this particular example it is an electronic board. In any case, the control module (100) will be designed to carry out the process of the invention or, in the case of a programmable device, it will have stored the necessary instructions to carry out the process of the invention.

Claims

REIVINDICACIONES
1 . Procedimiento de operación de un dispositivo (20) de protección contra el movimiento incontrolado de la cabina de un elevador, siendo el dispositivo (20) de protección adecuado para acoplarse a un limitador de velocidad (1 ) que comprende una polea (2) sobre un eje (3) por la cual se desliza un cable o similar y medios de retención vinculados a la polea (2), y comprendiendo el dispositivo (20) de protección un actuador electromagnético (8) cuya desactivación provoca el enclavamiento de la cabina del elevador, estando caracterizado el procedimiento porque comprende las siguientes operaciones: one . Operation procedure of a device (20) for protection against uncontrolled movement of an elevator car, the protection device (20) being suitable for coupling to a speed limiter (1) comprising a pulley (2) on a shaft (3) through which a cable or similar and retention means linked to the pulley (2) slides, and the protection device (20) comprising an electromagnetic actuator (8) whose deactivation causes the elevator car interlock , the procedure being characterized in that it comprises the following operations:
- monitorizar una primera señal (E1 ) que indica si la cabina está al nivel de un piso y una segunda señal (E2) que indica si la puerta de la cabina está abierta;  - monitor a first signal (E1) that indicates if the cabin is at the level of a floor and a second signal (E2) that indicates if the cabin door is open;
- alimentar el actuador electromagnético (8) en los momentos en que la segunda señal (E2) indica puerta está cerrada; y  - feed the electromagnetic actuator (8) at times when the second signal (E2) indicates door is closed; Y
- cuando la primera señal (E1 ) indica que la cabina está al nivel de un piso y además la segunda señal (E2) indica que la puerta está abierta, detener la alimentación al actuador electromagnético (8).  - when the first signal (E1) indicates that the cabin is at the level of a floor and also the second signal (E2) indicates that the door is open, stop the power to the electromagnetic actuator (8).
PCT/ES2012/070232 2011-07-01 2012-04-04 Method for operating a device to prevent uncontrolled movement of a lift car WO2013004867A1 (en)

Priority Applications (1)

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EP12807855.7A EP2727872A4 (en) 2011-07-01 2012-04-04 Method for operating a device to prevent uncontrolled movement of a lift car

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201131121A ES2368396B1 (en) 2011-07-01 2011-07-01 OPERATING PROCEDURE OF A DEVICE AGAINST THE UNCONTROLLED MOVEMENT OF THE ELEVATOR CABIN.
ESP201131121 2011-07-01

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Publication number Priority date Publication date Assignee Title
EP2840054B1 (en) * 2013-08-20 2018-01-03 Inventio AG Surveillance device for a lift cabin
WO2017167600A1 (en) * 2016-03-31 2017-10-05 Inventio Ag Speed limiter having a protective hood
CN109803911B (en) * 2016-11-30 2020-07-31 株式会社日立制作所 Elevator governor and elevator device

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See also references of EP2727872A4

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EP2727872A1 (en) 2014-05-07
ES2368396B1 (en) 2012-09-24
ES2368396A1 (en) 2011-11-17

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