EP3197812B1 - Frein d'ascenseur - Google Patents

Frein d'ascenseur Download PDF

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Publication number
EP3197812B1
EP3197812B1 EP15763852.9A EP15763852A EP3197812B1 EP 3197812 B1 EP3197812 B1 EP 3197812B1 EP 15763852 A EP15763852 A EP 15763852A EP 3197812 B1 EP3197812 B1 EP 3197812B1
Authority
EP
European Patent Office
Prior art keywords
brake
elevator
electromagnets
holding
hold
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.)
Not-in-force
Application number
EP15763852.9A
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German (de)
English (en)
Other versions
EP3197812A1 (fr
Inventor
Raphael Bitzi
Tobias Meier
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Inventio AG
Original Assignee
Inventio AG
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Filing date
Publication date
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Priority to PL15763852T priority Critical patent/PL3197812T3/pl
Publication of EP3197812A1 publication Critical patent/EP3197812A1/fr
Application granted granted Critical
Publication of EP3197812B1 publication Critical patent/EP3197812B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • 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
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • 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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to an elevator brake with an actuating device for braking and holding an elevator car in an elevator installation, a correspondingly designed elevator installation and a method for resetting and subsequently holding an elevator brake in a standby position.
  • the elevator system serves the essentially vertical transport of persons and goods over several floors of a building.
  • the elevator system includes at least one elevator car. This elevator car is guided by means of guide rails and it is moved by means of an elevator machine along these guide rails. Furthermore, the elevator system has at least one elevator brake.
  • the elevator brake fulfills different requirements.
  • the elevator brake is used as a holding brake, which holds the elevator car during a standstill phase. Standstill phases occur when the elevator car is in a stop and the drive motor is switched off or when the elevator system is out of operation.
  • the elevator brake is also used as an emergency brake to decelerate the elevator car in case of failure and shut down. Such errors are, for example, an unexpected operation of a door of the elevator during a ride or even a defect of a critical electronic component, etc.
  • elevator brakes are also used as so-called safety brakes. For example, catch brakes have the task of decelerating and holding the elevator car in the event of tearing of suspension elements.
  • the elevator brake must be brought into action gently or, for example, it must be brought into action very quickly when the suspension element tears.
  • a required braking power is different depending on the requirement.
  • different brakes are installed in the elevator.
  • a usually electromagnetic holding brake is used in the drive together with a safety gear on the elevator car.
  • the electromagnetic holding brake is here as a holding and emergency brake and the safety gear is used as a safety brake.
  • EP1671912 is a brake used on the elevator car known, which can perceive all three braking functions if necessary.
  • EP2058262 Another brake is known, which on the one hand allows a controlled adjustment of a release force and which on the other hand allows a quick braking by notching the L bulkapparates.
  • US3115956A discloses an elevator brake for braking and holding an elevator car in an elevator installation, having a first actuating device for actuating a first brake pad, wherein the first actuating device includes at least a first feed device and an energy store, wherein the energy store is a spring store and wherein said first feed device is an electric vehicle comprises magnetic holding or latching device which can hold the energy storage in a charged state and release it if necessary,
  • WO2008146383A1 and EP1323660A1 show further elevator brakes for braking and holding an elevator car in an elevator system, with a first actuating device for actuating a first brake pad, wherein the first actuating device includes at least a first feed device and an energy storage.
  • an object is to provide an elevator brake, which can perform at least the three aforementioned brake functions and which can be easily controlled.
  • an elevator brake according to the invention for braking and holding an elevator car in an elevator installation, with a first actuating device for actuating a first brake pad.
  • the first actuating device includes at least a first feed device and an energy store, wherein the energy storage is a spring accumulator and said first feed device comprises an electromagnetic holding or latching device, which hold the energy store in a charged state and can release it if necessary.
  • a holding or pawl means by means of a pawl is ideally suited to hold a device with little force and release quickly when needed.
  • One use of an electromagnet to hold or release the latch is one proven and cost-effective solution. Both active restraint (fail-safe) or passive restraint is feasible. With active retention of the energized solenoid holds the pawl in engagement and in case of loss, the pawl releases the energy storage.
  • a first alternative is characterized in that the electromagnetic holding or pawl device includes a plurality of electromagnets which can act directly or indirectly on the energy storage of the first delivery device by means of a lever ratio (L1 / L2), wherein to a resetting of the first actuator in his tense Ready position all of the plurality of electromagnets are activated, and for holding the first actuating device, in particular for holding in the charged state, a subset of the plurality of electromagnets are activated.
  • a lever ratio L1 / L2
  • the first actuating device includes a first feed device with an energy store, the first feed device delivers and presses the first brake pad to the brake pad or to the brake disc upon release of an energy stored in the energy storage.
  • the functionality of the first actuating device is therefore that an energy is provided which is ready on call and which can bring the first brake pad to effect quickly.
  • the first delivery device can also be referred to as a delivery mechanism, since it preferably or at least predominantly includes mechanical elements.
  • the energy storage of the first feed device includes a spring accumulator and the first brake pad or a corresponding brake housing is preferably designed such that the first brake pad in its standby position substantially abuts against a stop, so that over the second brake pad caused by the second actuating force over the stop can be transferred into a brake housing of the elevator brake.
  • the first actuator When initialized by the second actuator braking thus the first actuator is not loaded. It can therefore be designed for a small number of load cycles.
  • a second alternative is characterized in that the electromagnetic holding or latching means comprises a traction means which can hold the first brake pad in its cocked ready position, which wraps around a bollard or a spill and which by means of at least one electromagnet over a loose end of the traction device durable is.
  • a holding force of the electromagnet can be minimized.
  • a subset of the plurality of electromagnets is designed to hold the energy storage in its cocked ready position and so to keep the first brake pad at a predetermined or adjustable distance from the brake bridge or the brake disc.
  • the electromagnetic holding or latching means includes a plurality of electromagnets which can act by means of a lever translation on the clamping bolt and thus directly or indirectly to the spring accumulator of the energy storage of the first feed device.
  • electromagnets allow the use of smaller magnets. This can be cheaper and gives more flexibility in the arrangement of the same. In addition, for example, a failure of a single of the magnets can be compensated.
  • such an electromagnetic holding or pawl device can not only be used for the elevator brake described above, but they can also be used for other types of elevator brakes.
  • the plurality of electromagnets are designed to move the clamping bolt and the energy storage of an actuated position in which the first brake pad is delivered to the brake pad or brake disc, in its cocked ready position and thus reset the first brake pad.
  • this requires a design of the electromagnets to a higher performance, since effective clamping work must be done, however, the already existing magnets can be used.
  • At least one of the plurality of electromagnets is designed as a solenoid and this solenoid is activated at least when moving back the first brake pad in its cocked ready position.
  • At least one of the plurality of electromagnets is designed as a magnet and this magnet is activated when holding the first brake pad in its cocked ready position.
  • a subset of the plurality of electromagnets is designed to hold the clamping bolt and the energy storage or the tensioned spring of the spring accumulator in its cocked ready position and so to keep the first brake pad from the brake bridge or the brake disc in a predetermined or adjustable distance.
  • the subset of the plurality of electromagnets advantageously includes a predetermined number of electromagnets, which number may be a single one of these plurality of electromagnets but also several of them.
  • the subset does not include all of the multiple electromagnets.
  • the subset does not always have to be the same.
  • the subset can be varied, allowing for performance testing.
  • to reset the first actuator all magnets are activated to produce a correspondingly large clamping force, while then to hold only a few or even just a single - that is, the subset - the plurality of electromagnets is sufficient.
  • the magnet (s) are different.
  • the magnets required for clamping are designed as a lifting or linear magnet and the magnets used for holding are formed as a magnet. This has the advantage that a large clamping work can be performed by means of the lifting magnets, while for holding the holding magnets can be operated with low electrical energy.
  • the energy storage means of a clamping bolt is tensioned and the holding or latching means acts on this clamping bolt.
  • the first actuating device comprises a first restoring device.
  • the first return device includes, for example, a clamping bolt which can act at least directly or indirectly on the energy storage of the first feed device.
  • This clamping bolt can be operated in one embodiment either actively by means of a pneumatic, hydraulic, electromotive or magnetic lifting means or alternatively, in a simple embodiment, manually operated by means of a clamping lever.
  • the energy store together with the associated first feed device and the first brake pad can be pushed back into its cocked ready position via the clamping bolt in this embodiment.
  • the invention also relates to a corresponding elevator installation which includes an elevator car which can be moved along a guide rail, wherein the elevator car is designed with at least one of the elevator brakes described above and this elevator brake can act on a brake web arranged on the guide rail.
  • the elevator car is guided by means of two guide rails and has two elevator brakes, wherein each of the two elevator brakes can interact with one of the two guide rails.
  • the elevator brake as described in the previous variations is arranged on the elevator car.
  • the elevator car is guided along guide rails and the elevator brake is arranged such that the brake web, which preferably at the same time corresponds to a guide web of the guide rail, is arranged in the intermediate space between the second and the first brake pad of the elevator brake.
  • at least two elevator brakes are arranged on the elevator car, so that they can each interact with one of two guide rails arranged on both sides of the elevator car. This allows a load to be distributed symmetrically.
  • the elevator brake includes a second and a first brake pad. Between the second and the first brake pad, the elevator brake has a distance for receiving a brake bar of a guide rail of the elevator car or a brake disc of an elevator drive.
  • the elevator brake includes a second actuating device which is designed to move the second brake pad, if necessary, against the first brake pad and to clamp and brake the brake pad or the brake disc between the second and first brake pad.
  • the elevator brake further includes a first actuator configured to move the first brake pad against the second brake pad and accordingly pinch and brake the brake pad or brake disc between the first and second brake pads.
  • the brake preferably comprises in principle two functional units which are actuated substantially independently of each other, can be tested independently and which in their function are substantially independent of the other functional units or actuators. Essentially means that at least the function of triggering the braking can be done independently.
  • the second actuating device includes a second feed device, which can deliver and press the second brake pad in case of need from a standby position to the brake pad or to the brake disc and further includes the second actuator comprises a second return means, which in turn reset the second brake pad from the delivered position to its standby position can.
  • the second feed device and the second return device are formed by an assembly which is able to deliver the second brake pad and press and then reset again.
  • the brake can be activated by means of this second actuating device and also deactivated again. It is thus ideal as a holding and possibly as an emergency brake.
  • the second delivery device includes a delivery control, by means of which a delivery force can be controlled or regulated at least in stages. This is advantageous because it allows the elevator brake to be controlled depending on the loading condition of the elevator car and a corresponding braking requirement.
  • the second feed device includes a spindle drive, and this spindle drive is preferably driven by an electric motor. The spindle drive is preferably self-locking, so that it can maintain a set delivery position without the supply of energy.
  • the second delivery device of the second brake pad is configured such that it can push the first brake pad - after an operation thereof - together with the associated feed mechanism and the energy storage in its cocked ready position and that they can reset the first brake pad.
  • these and the associated first delivery device can again be pressed into the cocked ready position.
  • a special additional device for deferring the first actuator can be saved. After pushing back the first actuator only the pawl must be activated to hold the first actuator.
  • the elevator brake has a centering device, which centers the unactuated elevator brake in an unactuated position, so that the second and the first brake pad are arranged at a predetermined or adjustable distance from the guide rail.
  • the elevator brake is advantageously mounted laterally displaceable on the elevator car, so that they are under the action of one of the second and / or first Actuating the elevator brake generated contact pressure can align to the guide rail. This allows lateral forces on the cab and the rail system to be minimized.
  • the elevator installation includes an elevator control for controlling the elevator in normal operation.
  • the elevator installation advantageously further comprises a monitoring device for monitoring a proper operation of the elevator installation.
  • the elevator controller controls the second actuator of the elevator brake, and the monitor operates the first actuator upon detection of a failure.
  • the monitoring device also initializes the second actuating device when a fault has been detected in the sense of a fail-safe system, regardless of whether it has already been actuated by the elevator control.
  • the operation of the elevator brake course has priority in any case. This means that as soon as either the elevator control or the monitoring device activates the elevator brake for closing, that is to say for braking, a braking request takes place.
  • the monitoring device can, for example, in a first action, control only the second actuating device in order to activate the elevator brake and then, if an expected braking of the elevator fails, can also activate the first actuating device in a following action. In this way, a faulty response of the elevator system to a faulty behavior of the system can take place.
  • FIG. 1 schematically an elevator shaft 3 of an elevator system 1 is shown.
  • the elevator system 1 comprises an elevator car 2, which is located on a floor E 1 . Further floors of the elevator shaft 3 are shown with E 2 to E n .
  • the elevator system 1 of FIG. 1 is designed as a traction elevator system with a counterweight 8, wherein support means 6, the elevator car 2 and the counterweight 8 connect and carry each other.
  • the support means 6 are guided under the elevator car 2 by means of carrying rollers 7 and are driven by a traction sheave 5 of a drive machine 4 as required.
  • As a support means 6 usually ropes or belts are used.
  • An elevator control 10 determines and controls the elevator installation 1. It transmits necessary drive commands to a drive control 11, and the drive control 11 accordingly controls the drive machine 4.
  • guide rails 9 for the elevator car 2 and the counterweight 8 are also provided, which serve to guide and stabilize the elevator car 2 and the counterweight 8.
  • the elevator car 2 is equipped with an elevator brake 20, which is located below the elevator car 2.
  • FIG. 2 shows the elevator system 1 schematically from above.
  • two elevator brakes 20 are arranged laterally below the elevator car 2.
  • the two elevator brakes 20 cooperate with a respective guide rail 9 for braking and holding the elevator car 2.
  • the guide rail 9 has a brake bar 9a on which is designed to cooperate with the elevator brake.
  • the elevator brakes 20 are designed as a holding, emergency and safety brake. A separate safety gear is not provided.
  • the elevator brake 20 is controlled on the one hand by the elevator control 10 in normal operation.
  • FIG. 3 shows an embodiment of an elevator brake 20, as it can be used in the elevator system described above.
  • the elevator brake 20 for braking and holding an elevator car in an elevator installation includes a second brake pad 21 and a first brake pad 22.
  • the brake pads 21, 22 are arranged in a brake housing 40 of the elevator brake 20.
  • a distance between the two brake linings 21, 22 is adjusted such that the brake bar 9a of the guide rail 9 can be arranged therebetween in such a way that the brake bar is not clamped in the unactuated position of the elevator brake 20.
  • the unactuated position of the elevator brake is also referred to as ready position.
  • the distance corresponds to a width of the brake bridge 9a plus a clearance of about 2 times 1.5 to 3 millimeters. In this standby position, the elevator car can be moved unhindered by the drive machine.
  • the two brake pads 21, 22 are executed in several parts in the embodiment.
  • both brake pads 21, 22 executed in several parts. Of course, only one of the two brake pads 21, 22, for example, the second brake pad 21, be designed in several parts.
  • the second brake lining 21 is arranged and movable by means of a second actuating device 24 in the brake housing 40.
  • the second actuator 24 is executed in the embodiment as a second feed device 26 and at the same time as a second reset device 27.
  • an electric motor 30 which drives a spindle drive 29, the second brake lining 21 is, if necessary, delivered via a feed control 28 and also reset.
  • the electric motor 30 can act on the spindle drive 29 directly or by means of a gear.
  • the first brake pad 22 is arranged and movable by means of a first actuating device 25 in the brake housing 40.
  • the first actuating device 25 includes in the exemplary embodiment a first feed device 31.
  • the first feed device 31 consists essentially of an energy store 32.
  • the energy storage 32 is designed as a spring store, for example in the form of a compression spring.
  • the energy store 32 is held in a standby position via a clamping bolt 34 by means of a holding and latching device 36.
  • the spring or the spring accumulator is hereby tense.
  • the holding and latching device 36 consists in the example shown of a traction means 43 which is connected to the clamping bolt and which is held by an electromagnet 38.
  • the solenoid 38 can thus hold the first brake pad in its ready position.
  • the energy storage 32 pushes the brake pad and thus clamps the brake bar 9a firmly.
  • the traction means 43 is guided around a bollard or spill 44.
  • a centering device 50 holds the brake housing 40 with unloaded brake pads in a central position. This center position is set such that the two brake pads 21, 22 in the unloaded state, or when the brake pads are in their standby position, are symmetrically positioned at a distance from the brake pad 9a.
  • the brake housing 40 can be fastened laterally displaceable on the elevator car 2 via receptacles 18.
  • the receptacles 18 are provided with sliding surfaces 19.
  • the receptacle 18 may of course be made in another type of construction by means of sliding bolts on which the brake housing laterally is slidably mounted.
  • the brake housing has in the example a dome-like recess or Zentriermulde 49.
  • a centering ball 48 is pressed into the centering recess 49 via a centering spring 47, which is pretensioned by means of a setting screw 46 that is stationary relative to the elevator car 2 or the receptacle 18.
  • a centering spring 47 which is pretensioned by means of a setting screw 46 that is stationary relative to the elevator car 2 or the receptacle 18.
  • the elevator control 10 controls the second feed device 26 of the second actuating device 24.
  • the electric motor 30 moves via the spindle drive 29 the second brake lining 21 in the direction of the braking web 9a.
  • the brake housing 40 is pushed back in the direction of the second actuating device 24 (in FIG FIG. 3 to the left) whereby also the first brake pad 22 is brought into contact with the brake bar 9 a.
  • the electric motor 30 is turned back by means of the second restoring device 27 until the brake linings release the brake bridge 9a again.
  • the centering device 50 accordingly returns the brake housing 40 to its center position.
  • the monitoring device 13 controls the first feed device 31 of the first actuating device 25.
  • the electromagnet 38 is de-energized and the energy storage is the first brake pad 22 of the elevator brake abruptly or very fast.
  • the brake housing 40 is pushed back in the direction of the first actuating device 25 (in FIG FIG. 3 to the right) whereby the second brake pad 21 is brought into contact with the brake bar 9a.
  • the brake bar 9a is then clamped and the elevator car is braked.
  • FIG. 7 shows another embodiment of an elevator brake 20, as it can be used in the elevator system described above. Unlike the execution of FIG. 3 the second and first brake pads 21, 22 are each made in one piece.
  • the brake housing 40 is slidably guided in receptacles 18 as previously explained and the brake housing is centered by means of centering 50 to the brake bridge 9a.
  • the holding and latching device 36 is executed by means of a pawl 37.
  • the pawl 37 is held at one end by means of electromagnet 38 and holds at the other end the clamping bolt 34 back.
  • the electromagnet 38 releases the pawl 37 and thus the clamping bolt 34 and the energy store 32.
  • FIG. 3 explains the first brake pad 22 pressed with a predetermined by the energy storage 32 pressing force F22 against the brake pad 9a, the brake housing is displaced laterally, whereby the brake bar 9a is finally clamped and braked. This condition is in FIG.
  • the elevator control 10 controls the second feed device 26 of the second actuating device 24, as already described in connection with FIG FIG. 3 explained. From the electric motor 30 is finally, regardless of the first actuator 25, via the spindle drive 29, a pressing force F21 and the corresponding braking force generated and the elevator car is braked accordingly or kept at a standstill. This condition is in FIG. 9 shown.
  • the holding and pawl device 36 of the first actuator 25 may, as in the context of FIG. 3 can be optimized with the help of a spill or a bollard.
  • the electromagnet 38 holds the traction means 43 firmly.
  • the traction device is for example twice (720 °) wrapped around the bollard.
  • a retention force of about 13 kilo-Newton (with a bollard friction coefficient of about 0.4) can be achieved.
  • the electromagnet 38 is de-energized, as in the FIG. 4b shown, the strained energy storage can deliver the brake pad 22 quickly.
  • the traction means 43 is held under tension by the small counter-spring 45, so that the counter-plate of the electromagnet 38 is brought back into contact with the electromagnet when returning.
  • FIGS. 5a to 5c Another alternative for the holding and pawl device 36 is presented.
  • the brake plate 22 is in FIG. 5a biased by energy storage 32 of the first feed device 31.
  • the brake plate 22 is held by the clamping bolt 34.
  • the clamping bolt 34 is in this case held by a lever 42 via a fulcrum M from the electromagnet 38.
  • the fulcrum M defined by the resulting lever division L1 / L2 of the lever 42 required magnetic forces.
  • the electromagnet 38 is a plurality of electromagnets 38a to 38h, in the example by eight partial magnets.
  • the electromagnets 38a to 38h are arranged in a star shape around the clamping bolt 34 and each of the electromagnets 38a to 38h applies its own lever 42 on the clamping bolt.
  • inexpensive small magnets can be used.
  • a subset of the electromagnets 38 is sufficient to hold the elevator brake in the operating position, while all the electromagnets are switched on to reset.
  • the subset of the electromagnets in the exemplary embodiment could mean that two solenoids 38d, 38h suffice to hold the elevator brake in the operating position.
  • the clamping bolt 34 is pressed with the brake pad 22 from the energy storage 32 in its working position, as in FIG. 5b seen.
  • the electromagnets can also be arranged in parallel and, for example, via a common lever arrangement 42, as in FIG. 6 shown acting on the clamping bolt.
  • a common lever arrangement 42 as in FIG. 6 shown acting on the clamping bolt.
  • combinations of solutions are possible. So can also in the star-shaped arrangement of FIG. 5c
  • a plurality of double levers 42 are used, so that, for example, eight times two electromagnets can act on the clamping bolt.
  • the electromagnets 38a to 38h are made in one embodiment by different construction forms.
  • six of the eight electromagnets 38a to 38h for example, the electromagnets 38a, 38b, 38c, 38e, 38f, 38g designed as solenoids.
  • the solenoids generate a lifting or pulling force via a linear movement and they can thus tension the energy store 32.
  • the subset of two remaining electromagnets 38d, 38h are designed as holding magnets. You are able to keep the energy storage 32 in its biased position. The solenoids can thus be switched off after the spans.
  • the exemplary embodiment with eight electromagnets can be varied by the person skilled in the art in accordance with required forces taking into account installation space and costs. Further combinations and modifications are possible.
  • the elevator brake shown also attached as a brake on a drive of a conveyor web or an escalator
  • the second actuator instead of the spindle drive described by way of example may also contain hydraulic or pneumatic elements or the first actuator may at most include a pyrotechnic actuator.
  • the two actuators are independent of the other able to initiate a braking operation.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (8)

  1. Frein d'ascenseur, servant à freiner et arrêter une cabine d'ascenseur (2) dans une installation d'ascenseur (1), comportant un premier dispositif d'actionnement (25) servant à actionner une première garniture de frein (22), le premier dispositif d'actionnement (25) comportant au moins un premier dispositif d'avance (31) et un accumulateur d'énergie (32), l'accumulateur d'énergie (32) étant un accumulateur à ressort et ledit premier dispositif d'avance (31) comprenant un dispositif de retenue ou d'encliquetage électromagnétique (36) qui peut retenir l'accumulateur d'énergie (32) dans un état chargé et le relâcher au besoin, caractérisé en ce que le dispositif de retenue ou d'encliquetage électromagnétique (36) comporte une pluralité d'électroaimants (38, 38a - 38h) qui, au moyen d'un rapport de transmission de levier (L1/L2), peut agir directement ou indirectement sur l'accumulateur d'énergie (32) du premier dispositif d'avance (31), tous les électroaimants (38, 38a, 38b) étant activables pour ramener le premier dispositif d'actionnement (25) dans sa position d'attente tendue, et une partie de la pluralité d'électroaimants étant activables pour retenir le premier dispositif d'actionnement (25), en particulier pour le retenir dans l'état chargé, et/ou le dispositif de retenue ou d'encliquetage électromagnétique (36) comprend un moyen de traction (43) qui peut retenir la première garniture de frein (22) dans sa position d'attente tendue, qui entoure un bollard ou un cabestan (44) et qui peut être retenu par une extrémité libre du moyen de traction (43) à l'aide d'au moins un électroaimant (38, 38a - 38h).
  2. Frein d'ascenseur selon la revendication 1, caractérisé en ce que une partie de la pluralité d'électroaimants (38, 38d, 38h) est adaptée pour retenir l'accumulateur d'énergie (32) dans sa position d'attente contrainte, et ainsi retenir la première garniture de frein (22) à une distance prédéterminée ou réglable de l'âme de frein (9a) ou du disque de frein.
  3. Frein d'ascenseur selon l'une des revendications 1 ou 2, caractérisé en ce que l'un au moins de la pluralité d'électroaimants (38, 38a-38h) est conçu comme un aimant de levage (38, 38a-c, 38e-g) et cet aimant de levage (38, 38a-c, 38e-g) est activé au moins lors du recul de la première garniture de frein (22) jusque dans sa position d'attente contrainte.
  4. Frein d'ascenseur selon l'une des revendications 1 à 3, caractérisé en ce que l'un au moins de la pluralité d'électroaimants (38, 38a - 38h) est conçu comme un aimant d'adhérence (38, 38d, 38h) et cet aimant d'adhérence (38, 38d, 38h) est activé lorsque la première garniture de frein (22) est retenue dans sa position d'attente contrainte.
  5. Frein d'ascenseur selon l'une des revendications 1 à 4, caractérisé en ce que l'accumulateur d'énergie (32) peut être tendu au moyen d'un boulon de serrage (34) et le dispositif de retenue ou d'encliquetage (36) agit sur ce boulon de serrage (34).
  6. Installation d'ascenseur comprenant une cabine d'ascenseur (2) pouvant être déplacée le long d'un rail de guidage (9), la cabine d'ascenseur (2) étant équipée d'au moins un frein d'ascenseur (20) selon l'une des revendications précédentes 1 à 5 et ce frein d'ascenseur (20) pouvant agir sur l'âme de frein (9a) située au niveau rail de guidage (9).
  7. Installation d'ascenseur selon la revendication 6, dans laquelle la cabine d'ascenseur (2) est guidée au moyen de deux rails de guidage (9) et comporte deux freins d'ascenseurs (20), chacun des deux freins d'ascenseur (20) pouvant coopérer avec l'un des deux rails de guidage (9).
  8. Procédé de retour puis de retenue d'un frein d'ascenseur (20) d'une installation d'ascenseur (1) dans une position d'attente, le frein d'ascenseur (20) étant conçu selon l'une des revendications 1 à 5, le procédé comprenant au moins les étapes suivantes :
    - l'activation d'une pluralité d'électroaimants (38, 38a - 38h) pour contraindre le frein d'ascenseur (20) dans sa position d'attente, puis
    - la désactivation d'une partie de la pluralité d'électroaimants (38, 38a-38c, 38e-38g) pour retenir le frein d'ascenseur (20) dans sa position d'attente.
EP15763852.9A 2014-09-24 2015-09-03 Frein d'ascenseur Not-in-force EP3197812B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15763852T PL3197812T3 (pl) 2014-09-24 2015-09-03 Hamulec windy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14186210 2014-09-24
PCT/EP2015/070147 WO2016045932A1 (fr) 2014-09-24 2015-09-03 Frein d'ascenseur

Publications (2)

Publication Number Publication Date
EP3197812A1 EP3197812A1 (fr) 2017-08-02
EP3197812B1 true EP3197812B1 (fr) 2018-08-15

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Application Number Title Priority Date Filing Date
EP15763852.9A Not-in-force EP3197812B1 (fr) 2014-09-24 2015-09-03 Frein d'ascenseur

Country Status (6)

Country Link
US (1) US20170291794A1 (fr)
EP (1) EP3197812B1 (fr)
CN (1) CN106715307B (fr)
ES (1) ES2686202T3 (fr)
PL (1) PL3197812T3 (fr)
WO (1) WO2016045932A1 (fr)

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ES2682749T3 (es) * 2014-09-24 2018-09-21 Inventio Ag Freno de ascensor
DE102014116281A1 (de) * 2014-11-07 2016-05-12 Thyssenkrupp Ag Aufzug mit einer Bremsvorrichtung
DE202015106237U1 (de) * 2015-11-17 2017-02-20 Wittur Holding Gmbh Aufzugssicherheitseinrichtung mit energiesparendem Auslöser
DE102016200593A1 (de) * 2016-01-19 2017-07-20 Thyssenkrupp Ag Bremseinrichtung für einen Fahrkorb eines Aufzugsystems
US10889468B2 (en) 2016-12-13 2021-01-12 Otis Elevator Company Electronics safety actuator
US10889467B2 (en) * 2018-05-08 2021-01-12 Otis Elevator Company Synchronization based on distance of magnet assembly to rail
ES2931528T3 (es) * 2018-08-10 2022-12-30 Otis Elevator Co Dispositivo de accionamiento de equipos de seguridad de ascensor
DE102018219259A1 (de) * 2018-11-12 2020-05-14 Thyssenkrupp Ag Elektromechanischer Betätiger zum Betätigen einer Bremse einer Aufzuganlage
EP3674243B1 (fr) * 2018-12-31 2022-07-20 KONE Corporation Frein de stationnement de cabine d'ascenseur
BR112022019556A2 (pt) * 2020-04-06 2022-11-16 Inventio Ag Método para verificação do estado funcional atual de um freio em uma instalação de elevador e instalação de elevador adequadamente configurada
EP3995431A1 (fr) * 2020-11-06 2022-05-11 Otis Elevator Company Freins de sécurité avec force de frein réglable

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US3115956A (en) * 1960-06-08 1963-12-31 Trombetta Panfilo Industrial brake
US5791442A (en) * 1994-05-25 1998-08-11 Orscheln Management Co. Magnetic latch mechanism and method particularly for linear and rotatable brakes
WO2003008317A1 (fr) * 2001-06-29 2003-01-30 Mitsubishi Denki Kabushiki Kaisha Dispositif de freinage de secours pour ascenseur
EP1323660B1 (fr) * 2001-12-24 2017-01-04 Inventio AG Frein de securité pour système d'ascenceur
EP1671912B1 (fr) * 2004-12-17 2011-02-09 Inventio AG Système d'ascenseur avec unité de freinage et méthode pour mantenir l'ascenseur en position arrêtée
MY192706A (en) * 2004-12-17 2022-09-02 Inventio Ag Lift installation with a braking device, and method for braking and holding a lift installation
BRPI0601926B1 (pt) * 2005-06-17 2018-06-12 Inventio Aktiengesellschaft Dispositivo de pára-quedas do freio
CN101663223B (zh) * 2007-05-31 2012-04-25 三菱电机株式会社 电梯用曳引机的制动装置
ATE506313T1 (de) * 2007-11-12 2011-05-15 Thyssenkrupp Elevator Ag Bremsvorrichtung zum bremsen eines fahrkorbs
BR112012023034A8 (pt) * 2010-03-18 2017-10-17 Inventio Ag atuador para dispositivo de frenagem e sistema de elevador
JP5676310B2 (ja) * 2011-03-01 2015-02-25 東芝エレベータ株式会社 エレベータ制御装置

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Also Published As

Publication number Publication date
PL3197812T3 (pl) 2019-01-31
CN106715307A (zh) 2017-05-24
EP3197812A1 (fr) 2017-08-02
WO2016045932A1 (fr) 2016-03-31
US20170291794A1 (en) 2017-10-12
CN106715307B (zh) 2018-12-11
ES2686202T3 (es) 2018-10-16

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