WO2024153851A1 - Dispositif régulateur de survitesse, parachute de cabine d'ascenseur et procédé de surveillance du fonctionnement d'un régulateur de survitesse - Google Patents

Dispositif régulateur de survitesse, parachute de cabine d'ascenseur et procédé de surveillance du fonctionnement d'un régulateur de survitesse Download PDF

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Publication number
WO2024153851A1
WO2024153851A1 PCT/FI2023/050038 FI2023050038W WO2024153851A1 WO 2024153851 A1 WO2024153851 A1 WO 2024153851A1 FI 2023050038 W FI2023050038 W FI 2023050038W WO 2024153851 A1 WO2024153851 A1 WO 2024153851A1
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WO
WIPO (PCT)
Prior art keywords
overspeed governor
governor device
safety gear
elevator
driving
Prior art date
Application number
PCT/FI2023/050038
Other languages
English (en)
Inventor
Ville SORVALI
Tuukka Korhonen
Joonas Mälkönen
Original Assignee
Kone Corporation
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 Kone Corporation filed Critical Kone Corporation
Priority to PCT/FI2023/050038 priority Critical patent/WO2024153851A1/fr
Publication of WO2024153851A1 publication Critical patent/WO2024153851A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—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

Definitions

  • the present invention relates in general to elevator systems and safety gears thereof.
  • the present invention concerns overspeed governor (OSG) devices utilized in or in connection with a safety gear of an elevator system.
  • OSG overspeed governor
  • An objective of the present invention is to provide an overspeed governor (OSG) device for an elevator safety gear, an elevator safety gear for an elevator car or for a counterweight of an elevator car, and a method for monitoring operation of an overspeed governor.
  • OSG overspeed governor
  • Another objective of the present invention is that the overspeed governor device, the elevator safety gear, and the method provides a simple mechanical system, which can work bi-directionally, and in non-contact manner relative to a guide rail, and can be used to trigger safety gears either mechanically or electronically.
  • the objectives of the invention are reached by an overspeed governor device for an elevator safety gear, an elevator safety gear for an elevator car or for a counterweight of an elevator car, and a method for monitoring operation of an overspeed governor as defined by the respective independent claims.
  • the overspeed governor device also comprises an actuation arrangement.
  • the actuation arrangement comprises a first member arranged in mechanical coupling with the driving unit, and arranged to rotate together with the driving unit, and a second member.
  • the actuation arrangement is configured so that the second member is stationary, when the first member rotates slower than a threshold speed value, and engages with the first member, when the first member reaches the threshold speed value, so that the second member starts to move.
  • the actuation arrangement may comprise a spring-loaded mechanism to provide the engaging between the first member and the second member.
  • the spring- loaded mechanism may be adapted so that a force, such as a centrifugal force, related to rotation of the spring-loaded mechanism overcomes a spring force of the spring-loaded mechanism in response to the first member reaching the threshold speed value.
  • the spring-loaded mechanism may include a spring-loaded rocker arm to provide the engaging.
  • the at least one driving member may be arranged to rotate based a magnetic interaction between the plurality of magnets and a magnetic field generated by eddy currents which are produced by the driving member being moved relative to an electrically conductive surface, preferably of ferromagnetic material, in proximity and non-contact with the driving member.
  • the overspeed governor device may comprise a motion sensor, such as an encoder, arranged to sense rotation of the driving member and/or the first member, and to produce a sensing signal.
  • the driving unit may comprise a plurality of driving member, for example, to improve the magnetic engagement.
  • adjacent driving members of the plurality of driving members are spaced apart in a direction of the rotation axis so that a guide rail can be arranged between the adjacent driving members.
  • the overspeed governor device may further comprise a rotational shaft between the driving unit and the actuation mechanism, thereby providing a compact device.
  • the rotational shaft may even extend between the plurality of driving members.
  • an elevator safety gear for an elevator car or for a counterweight of an elevator car.
  • the elevator safety gear comprises a gripping mechanism having a gripping position and an inactive position, wherein the gripping mechanism is configured in the gripping position for gripping a rail for providing braking.
  • the elevator safety gear further comprises a linkage system for changing the position of the gripping mechanism from the inactive position to the gripping position.
  • the elevator safety gear comprises an overspeed governor device according to the first aspect, configured to operate the linkage system.
  • the linkage system may comprise a mechanical coupling between the second member of the overspeed governor device and the gripping mechanism.
  • the linkage system comprises rope or wires, such as steel ropes or wires, between the second member and the gripping mechanism.
  • the rail may be of or may at least comprise a longitudinal portion of an electrically conductive material, preferably of ferromagnetic material, and the elevator safety gear is adapted for arranging to an elevator car or to a counterweight of an elevator car so that the overspeed governor device is arranged in proximity and non-contact with the rail.
  • a method for monitoring operation of an overspeed governor according to the first aspect comprises comparing a sensing signal produced by a motion sensor of the overspeed governor with a second sensing signal produced by another motion or positioning sensor, wherein said another motion or positioning sensor is arranged to determine motion or position with respect to the same elevator car relative to which the overspeed governor is arranged to operate.
  • the motion sensor of the overspeed governor may, preferably, be supplied with electric power to operate from an elevator control unit or the like.
  • a plurality of may refer to any positive integer starting from two (2), that is, being two, at least two, three, at least three, or the like.
  • Figure 2 illustrates schematically an overspeed governor device.
  • FIG. 3 illustrates schematically an overspeed governor device.
  • Figure 4 illustrates schematically an elevator car comprising an overspeed governor device.
  • Figure 5 illustrates schematically an overspeed governor device arranged to a support structure.
  • Figure 6 illustrates schematically a safety gear.
  • Figure 7 illustrates schematically a safety gear.
  • Figure 9 shows a flow diagram of a method for monitoring operation of an overspeed governor device.
  • Permanent magnets 24 may be in electromagnetic interaction with a rail, causing eddy currents in the rail when the overspeed governor device 20 is moving relative to the rail. Eddy currents cause rotation of the driving member 22 in a manner that speed of the rotation of the driving member 22 is proportional to the speed of the elevator car, for instance.
  • a rotational shaft 31 between the driving unit 21 and the actuation mechanism 25.
  • the rotational shaft 31 may, preferably, extend between the plurality of driving members 22, thus providing a compact overspeed governor device 20 with good magnetic interaction with the guide rail 18, for instance.
  • the driving members 22 may be interconnected to each other with a shaft 31, and there can be, for example, on the surfaces of the driving member(s) 22 permanent magnets in N-S-N-S etc order. Magnetic field produced by the magnets 24 reach the guide rail 18 arranged next to one or two or between two driving members 22. Otherwise the field may be on the air, although there may be encapsulation to control the field.
  • the overspeed governor device 20 such as on an elevator car, starts to move, the driving members 22 start to rotate. There may be a small slip depending on the air gap, which can be taken into account in the determination of the threshold speed value (for example, by pre-tension of the flyweight system or rocker arm system).
  • the driving members 22 are on both sides of the guide rail 18, the magnetic force generated by the driving members 22 remains relatively stable even with lateral movements of the device 20, because when the air gap on one side of the guide rail 18 gets larger, it gets smaller on the opposite side. This will reduce the total effect of said movement on the operation of the device 20.
  • the overspeed governor device 20 may comprise a motion sensor 27, such as an encoder, arranged to sense rotation of the driving member 22 and/or the first member 26A, and to produce a sensing signal.
  • the sensing signal may, thus, carry information about the speed and direction of the rotation of the driving member 22 and/or the first member 26A.
  • the motion sensor 27 may be attached to the opposite side of the overspeed governor device 20 relative to the first member 26A.
  • the motion sensor 27 may be attached on the same side of the device 20 than the first member 26 A.
  • the motion sensor 27 may be attached to the rotational shaft 31, directly or via attachment or gear arrangement. There may also be an electrical power supply device (not shown) for supplying the motion sensor 27.
  • the electrical power supply device may be arranged fixed relative to the sensor 27 and the overspeed governor device 20, or merely provided an electrical connection therebetween in cases the electrical power supply device is not arranged fixed relative to the overspeed governor device 20. Also batteries may be used.
  • the actuation arrangement 25 may comprise a spring-loaded mechanism to provide the engaging between the first member 26 A and the second member 26B.
  • the spring-loaded mechanism may be adapted so that a force, such as a centrifugal force, related to rotation of the spring-loaded mechanism overcomes a spring force of the spring-loaded mechanism in response to the first member reaching the threshold speed value.
  • the spring-loaded mechanism may include a spring- loaded rocker arm to provide the engaging.
  • the activation arrangement 25 may have, as the first member 26A and the second member 26B, two parallel plates.
  • the first plate is fixed to the rotating axis 31 of the driving member 22, which may be a magnetic wheel, such that it rotates when the driving member 22 rotates.
  • the second plate may normally be idle and does not rotate, but in an overspeed situation the actuation arrangement 25, such as by centrifugal activation mechanism, causes coupling between the first and the second plates such that also the second plate, and any pulley or the like component, starts to rotate.
  • This rotation drives the mechanical linkage (such as a wire or a rod, or the like) such that the gripping mechanism 40, such as including a safety brake or brakes (wedges or rollers, for instance), of the safety gear move into a gripping position against, for example, the guide rail 18.
  • the gripping mechanism 40 such as including a safety brake or brakes (wedges or rollers, for instance)
  • the gripping mechanism 40 such as including a safety brake or brakes (wedges or rollers, for instance)
  • any suitable, rotatable and compatible parts could be used for the coupling and, consequently, activation of the safety gear.
  • the overspeed governor device 20 As rotating direction of the driving member 22 and the first and second members 26A, 26B depend on the movement direction of the overspeed governor device 20 relative to the portion, such as the guide rail 18, comprising the electrically conductive material, preferably of ferromagnetic material, activation of the safety brake is possible in both movement directions; in other words the overspeed governor device 20 can be used in bidirectional safety gear as well.
  • the safety gear may, preferably, be a bidirectional safety gear, optionally with an electrically controllable activation.
  • Bi-directional safety gear means that it has a gripping mechanism that acts in both movement directions, such as, in up and down directions of an elevator car.
  • the actuation arrangement 25 may, alternatively, be based on other than spring-loaded mechanism.
  • the threshold speed value may thus be determined based on the structure, such as masses, of the mechanism having the gravity affecting it components, thereby requiring certain speed to overcome the counterforce, and then providing the engagement.
  • the driving members 22 and/or the first member 26A rotates below the threshold speed value, there is no force being generated to the activation mechanism of the safety gear other than the bearing friction (neglible), or the safety switch 30 is not actuated from its normal state.
  • FIG. 2 illustrates schematically an overspeed governor device 20, such as to be operated in connection with an elevator safety gear.
  • the overspeed governor device 20 in Fig. 2 may be in most parts similar or even identical to the one shown in Fig. 1.
  • the second member 26B of the actuation arrangement 25 may be coupled to a safety switch 30 controlling electric actuation of safety gear, and finally the gripping mechanism 40.
  • the overspeed governor device 20 may be arranged to operate the switch 30 when the threshold speed value is reached.
  • the switch 30 then controls the actuation of the safety gear electrically.
  • Electrically controlled activation may mean that, for example, the safety gear is activated (such as braking initiated) in response to a receiving an electrical activation signal.
  • An electric actuator may be activated and may change the position of the gripping mechanism 40 of the safety gear to provide braking, such as by a coupling mechanism therebetween for transmitting the force generated by the electric actuator to change the position of the gripping mechanism or mechanisms.
  • safety gear wedge or roller movement is implemented based on an electrical activation, wherein the overspeed detection device, or the overspeed governor, is utilized to sup-ply power to electric actuator generating the force to change the position to the grip-ping position.
  • the activation of the safety gear occurs in response to a tripping of an overspeed governor by centrifugal force during overspeed condition thereof, and then causes, via a mechanical coupling, the safety gear to activate.
  • FIG 3 illustrates schematically an overspeed governor device 20 as a perspective view. There is shown two driving members 22, however, other one is drawn with dashed lines indicating optionality.
  • the overspeed governor device 20 may, in general, be similar to ones shown schematically in Figs. 1 and 2, however, there are also further details visible.
  • the driving members 22 comprise the plurality of permanent magnets 24 which are arranged in a pole-wise alternating manner around a rotation axis 29 of the driving unit 21.
  • the permanent magnets are marked reference signs 24A and 24B to indicate that adjacent magnets are arranged in different way regarding their polarity and/or direction of their magnetic field.
  • the permanent magnets 24, 24A, 24B may be arranged to holes at the peripheral portion of the body 23 of the driving member(s) 22.
  • the permanent magnets 24A may have their south pole S pointing towards the other driving member 22, whereas permanent magnets 24B may have their north pole N towards the other driving member 22, or vice versa.
  • the magnets 24 may be arranged in various alternative arrangement to obtain similar effect.
  • a pair of magnets 24 may be arranged in the same way and another pair of magnets 24 into the opposite way.
  • more complex magnet arrangements such as Halbach arrays or the like, may be used as long as the same or similar effect is obtained, according to which the overspeed governor device 20 starts to rotate when being moved relative to the electrically conductive surface, such as of the guide rail 18.
  • Figure 3 also illustrates support or fixing members 34 for attaching the overspeed governor device 20 to an elevator car and a counterweight of the elevator car, for instance.
  • the support members 34 may be coupled to the axis 29 via bearings so as to enable rotation of the axis 29 relative to the support members 34.
  • the support member 34 is used to fix or attach the overspeed governor device 20 to a support frame (not shown, however, could be adjacent to the support member(s) 34), which the support frame may be further in connection with the elevator car.
  • the overspeed governor device 20 is, preferably, at least functionally connected to the gripping mechanism 40 of a safety gear, either by mechanically or electrically via a safety switch 30, for instance. Even though shown in Fig.
  • Figure 4 illustrates schematically an elevator car 60 comprising an overspeed governor device 20.
  • Fig. 4 shows an example of the support frame 32 to which an overspeed governor device 20 may be attached to.
  • the overspeed governor device 20 and the gripping mechanism 40 of the safety gear 100 are shown highly schematically.
  • the guide rail 18 may extend, for example, along the whole elevator shaft or at least along most of it.
  • the guide rail 18 may be fixed to the elevator shaft so that it maintains its position.
  • Fig. 4 there can be only one safety gear 100 and guide rail 18, or several safety gears 100 and rails 18 arranged coupled to the elevator car 60. In case of having a plurality of safety gears, they may be connected to each other by an interconnection 39, such electrically and/or mechanically.
  • one overspeed governor device 20 can be utilized to operate several activation and/or gripping mechanisms 40 of safety gears 100. As can be understood, there may alternatively be one overspeed governor 20 and one activation and/or gripping mechanisms 40, or several such pairs.
  • FIG. 6 illustrates schematically a safety gear 100 comprising an overspeed governor 20.
  • the elevator safety gear 100 for an elevator car 60 or for a counterweight of an elevator car 60 is shown schematically.
  • the elevator safety gear 100 comprises a gripping mechanism 40 having a gripping position and an inactive position, wherein the gripping mechanism 40 is configured in the gripping position for gripping a rail (such as the guide rail 18 or some other rail) for providing braking.
  • the brake pads 41, 42 are shown.
  • First brake pad 41 (or pads, for instance) is stationary and second brake pads 42 on the opposite side of the braking surfaces (not shown) are movable by the operation of the gripping mechanism 40.
  • the safety gear 100 comprises a linkage system 45 for changing the position of the gripping mechanism 40 from the inactive position to the gripping position.
  • this is implemented by ropes, wires 44, or rods, and sheave(s), trolley(s), roller(s) or the like. As visible, there may be two wires 44 or the like for enabling bi-directional operation.
  • the linkage system 45 may comprise an electric actuator (not shown) for changing the position of the gripping mechanism 40 from the inactive position to the gripping position, and a safety switch 30 operable based on the movement of the second member 26B to electrically operate the electric actuator 40.
  • the required safety gear components are located in connection to the car 60. Therefore, maintenance may be carried out from one single location.
  • a maintenance person inside an elevator car 60 may reach the safety gear 100 via a hatch or an openable car wall or car roof.
  • Figure 7 illustrates schematically a safety gear lOO.
  • the safety gear 100 comprises a gripping mechanism 40 having a gripping position and an inactive position, wherein the gripping mechanism 10 is configured in the gripping position for gripping a guide rail 18 for providing braking.
  • the gripping mechanism 40 is shown in the inactive position. In the gripping position portion of the gripping mechanism 40 becomes in contact with the guide rail 18.
  • the safety gear 100 may further comprise an electric actuator 35 and a linkage system 45 between the electric actuator 35, such as an electric motor, and the gripping mechanism 40, wherein the linkage system 45 is adapted to arrange the gripping mechanism 40 into the gripping position by the operation of the electric actuator 35.
  • the linkage system 45 may mechanically transmit force generated by the electric actuator 35 to change the position of the gripping mechanism 40.
  • the electric actuator 35 may be directly operating the linkage system 45 or via a sheave 48 or the like.
  • the safety gear 100 also comprises an overspeed governor device 20.
  • the gripping mechanism 40 is arranged to the gripping position in response to determining, based on the operation of the overspeed governor 20, such as a measurement thereof, that there is the overspeed situation.
  • Figure 7 further illustrates an optional position or proximity sensor 50 for determining position of a safety gear wedge 52 of the safety gear 100.
  • the gripping mechanism 40 preferably also comprises a safety gear block 54 for guiding the wedge 52.
  • the safety gear wedge 52 may thus provide braking when it gets wedged between the safety gear block 54 and the rail, such as the guide rail 18.
  • the gripping mechanism 40 may be arranged to provide instantaneous or progressive braking.
  • the safety gear 100 may comprise a roller instead of a wedge 52.
  • the wedge 52 or the roller may be arranged to move on a dedicated track between the gripping and inactive positions.
  • the safety gear 100 may comprise a bidirectional gripping mechanism 40, that is, it may be configured to provide braking selectively in either one of directions with respect to the longitudinal direction of the guide rail 18 with respect to movement of the elevator car 60 in said direction.
  • the position or proximity sensor 50 can be used to identify the central position of the wedge 52, for instance. Furthermore, in some embodiments, it can alternatively or in addition, be used in the process of resetting the safety gear 100.
  • the sensor 50 may also be utilized to check, such as periodically, the operation of safety gear 100 and components thereof. For example, the elevator car 60 may be moved up and down. During said moving, the sensor 50 would change its state, such as on-off-on, if operating correctly. Thus, the correct operation may be determined and verified with the safety gear 100.
  • the surface, or at least a region close to the surface, of the driving member 22 may have permanent magnets 24A, 24B arranged in a pole- wise alternating manner, that is, having their poles in north- south-north- south order or the like, as stated hereinbefore.
  • the magnetic field of the driving member 22 thus preferably reaches the rail, such as the guide rail 18, which may preferably be of ferromagnetic material.
  • the permanent magnets 24A, 24B thereby produce an alternating magnetic field when the driving member 22 moves relative to the rail which generates eddy currents 104 in the rail. This causes the rotation of the driving member 22 due to the interaction 102 of the permanent magnets 24A, 24B and the magnetic field generated by the eddy currents 104.
  • the driving member 22 thus rotates due to a touchless or contactless manner or interaction 102 with the rail.
  • the linkage system 45 may comprise a rope, a wire 44, or a belt for transmitting force generated by the second member 26B or the electric actuator 35 to the grip-ping mechanism 40.
  • the linkage system 45 may comprise a counterweight 46 for balancing mass of a safety gear wedge 52 of the gear 100.
  • the safety gear wedge 52 maintains its position more easily.
  • the rope, wire 44, or belt may be arranged to extend around a safety gear sheave 48 in order to be able to move the wedge 52 selectively in different directions for, e.g., providing the bidirectional braking and/or moving the wedge 52 back to neutral position when being displaced therefrom for any reason, such as due to braking.
  • a small magnet could be added keep the wedge(s) 52 and/or counterweight 46, if any, in place.
  • the wedges 52 may be arranged on both sides of the rail, and they may be connected to each other. The connection may be such that the wedges 52 on both sides operate substantially simultaneously. This is marked in Fig. 7 by the arc with a dashed line between the wedges 52.
  • the safety gear 100 may comprise at least two gripping mechanisms, each of which are configured to be operated based on determining the overspeed situation by the overspeed governor device 20. A mechanical synchronization axis may be needed, however, not necessarily if the gripping mechanism 40 is activated electrically.
  • FIG 8 illustrates schematically an elevator system 200.
  • the elevator system 200 may comprise an electric motor 155 for moving an elevator car 60 in an elevator shaft 150 comprised in the elevator system 200.
  • the elevator car 60 may be mechanically coupled to the electric motor 155, for example, by a hoisting rope 140, hydraulic means or in more direct manner in case of a linear motor.
  • the operation of the electric motor 155 may, optionally, be controlled by an electrical drive 105 such as a frequency converter or an inverter.
  • the motor 155 may be arranged to rotate an elevator sheave.
  • the elevator system 200 comprises the safety gear 100 as described hereinbefore.
  • the safety gear 100 is coupled to the elevator car 60 and arranged to operate in connection with the guide rail 18 extending in the elevator shaft 150.
  • the hoisting rope 140 may comprise, for example, steel or carbon fibers.
  • the hoisting rope 140 may in various embodiments be coupled to the elevator sheave, and may therefore be operated by the motor 155.
  • the term ‘hoisting rope’ does not limit the form of the element anyhow.
  • the hoisting rope 140 may be implemented as a rope, a belt, or a track in ropeless or rope-free elevators.
  • the elevator system 200 may comprise an elevator control unit 1100 for controlling the operation of the elevator system 200.
  • the elevator control unit 1100 may be a separate device or may be comprised in the other components of the elevator system 200 such as in or as a part of the electrical drive 105.
  • the elevator control unit 1100 may also be implemented in a distributed manner so that, e.g., one portion of the elevator control unit 1100 may be comprised in the electrical drive 105 and another portion in the elevator car 60.
  • the elevator control unit 1100 may also be arranged in distributed manner at more than two locations or in more than two devices.
  • the elevator system 200 may comprise a further elevator brake arrangement 145 comprising an elevator brake, preferably, an electromechanical elevator brake, such as in connection with the motor 155 and/or the elevator sheave.
  • a main electrical power supply 125 such as a three- or singlephase electrical power grid
  • the elevator car 60 may operate in the shaft or hoistway 150 serving landing floors 160.
  • the overspeed governor device 20 may be arranged in connection with the counterweight 135.
  • Figure 9 shows a flow diagram of a method for monitoring operation of an overspeed governor device 20.
  • Item or method step 900 refers to a start-up phase of the method. Suitable equipment and components are obtained and systems assembled and configured for operation. This may mean arranging an overspeed governor device 20 and/or a safety gear 100 as described hereinbefore in connection with an elevator car 60 and a rail, such as a guide rail 18.
  • Item or method step 910 refers to comparing a sensing signal produced by a motion sensor 27 of the overspeed governor device 20 with a second sensing signal produced by another motion or positioning sensor 61, wherein said another motion or positioning sensor 61 is arranged to determine motion or position with respect to the same elevator car 60 relative to which the overspeed governor device 20 is arranged to operate.
  • Method execution may be stopped at step 999.
  • the method may comprise checking continuously, periodically, intermittently, or randomly operation of safety components of the safety gear 100. To verify that the driving member(s) 22 are rotating normally and not stuck due to bearing or other mechanical failure when the elevator car 60 is moving.
  • the method and the system can be also programmed for remote monitoring purposes, as the increase of signal difference can detect for example slowly failing bearings or reducing magnetic force. Additionally electrical tripping device to trip the OSG 20 remotely from elevator control panel can be used.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

Sont divulgués ici un dispositif régulateur de survitesse (20) destiné à un parachute de cabine d'ascenseur (100), un parachute de cabine d'ascenseur (100) et un procédé de surveillance du fonctionnement d'un dispositif régulateur de survitesse (20). Le dispositif régulateur de survitesse (20) comprend une unité d'entraînement (21) comprenant au moins un élément d'entraînement (22) comprenant un corps (23) et une pluralité d'aimants (24) agencés sur le corps (23) d'une manière alternée du point de vue des pôles, autour d'un axe de rotation (29) de l'unité d'entraînement (21). Le dispositif régulateur de survitesse (20) comprend également un agencement d'actionnement (25) comprenant un premier élément (26A) accouplé mécaniquement à l'unité d'entraînement (21) et conçu pour tourner conjointement avec l'unité d'entraînement (21), et un second élément (26B). L'agencement d'actionnement (25) est configuré de sorte que le second élément (26B) est fixe lorsque le premier élément (26A) tourne plus lentement qu'une valeur de vitesse seuil, et vient en prise avec le premier élément (26a), lorsqu'il atteint la valeur de vitesse seuil.
PCT/FI2023/050038 2023-01-17 2023-01-17 Dispositif régulateur de survitesse, parachute de cabine d'ascenseur et procédé de surveillance du fonctionnement d'un régulateur de survitesse WO2024153851A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2023/050038 WO2024153851A1 (fr) 2023-01-17 2023-01-17 Dispositif régulateur de survitesse, parachute de cabine d'ascenseur et procédé de surveillance du fonctionnement d'un régulateur de survitesse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2023/050038 WO2024153851A1 (fr) 2023-01-17 2023-01-17 Dispositif régulateur de survitesse, parachute de cabine d'ascenseur et procédé de surveillance du fonctionnement d'un régulateur de survitesse

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WO2024153851A1 true WO2024153851A1 (fr) 2024-07-25

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PCT/FI2023/050038 WO2024153851A1 (fr) 2023-01-17 2023-01-17 Dispositif régulateur de survitesse, parachute de cabine d'ascenseur et procédé de surveillance du fonctionnement d'un régulateur de survitesse

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008239260A (ja) * 2007-03-26 2008-10-09 Hitachi Ltd エレベータ速度検出方法
WO2016030570A1 (fr) * 2014-08-29 2016-03-03 Kone Corporation Régulateur de survitesse pour ascenseur

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008239260A (ja) * 2007-03-26 2008-10-09 Hitachi Ltd エレベータ速度検出方法
WO2016030570A1 (fr) * 2014-08-29 2016-03-03 Kone Corporation Régulateur de survitesse pour ascenseur

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