EP3693316B1 - Dispositif de sécurité d'ascenseur pourvu de déclencheur économe en énergie - Google Patents

Dispositif de sécurité d'ascenseur pourvu de déclencheur économe en énergie Download PDF

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Publication number
EP3693316B1
EP3693316B1 EP20162670.2A EP20162670A EP3693316B1 EP 3693316 B1 EP3693316 B1 EP 3693316B1 EP 20162670 A EP20162670 A EP 20162670A EP 3693316 B1 EP3693316 B1 EP 3693316B1
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EP
European Patent Office
Prior art keywords
actuator
safety device
elevator safety
ase
actuating element
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EP20162670.2A
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German (de)
English (en)
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EP3693316A1 (fr
Inventor
René HOLZER
Karl Kriener
Peter Ladner
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Wittur Holding GmbH
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Wittur Holding GmbH
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Publication of EP3693316A1 publication Critical patent/EP3693316A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—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

Definitions

  • the invention relates to an elevator safety device with a special trigger according to the preamble of claim 1.
  • Elevator safety devices have been in use in various forms for a long time. These are braking and safety gears or devices for limiting overspeed or for so-called shelter protection.
  • All of these elevator safety devices typically work with a trigger.
  • This trigger activates the elevator safety device as soon as there is a need.
  • the trigger is typically designed to be held in its ready position against the tension of a main spring.
  • This main spring ensures that the trigger can act with the required force as soon as it is activated.
  • the trigger is held in its ready position, overcoming the force of the main spring. This holding is typically done using a purely mechanical solution, more recently also using an electromagnetic actuator capable of overcoming the force applied by the main spring.
  • a main spring in one piece or made up of several spring elements
  • the actuator which is also electromagnetic, has to apply relatively large forces in order to hold the trigger in its ready position, against the action of the main spring. Because of this, the electromagnetic actuator usually consumes a relatively large amount of energy.
  • an elevator safety device with a trigger is known, whereby the trigger can be activated with the required force as soon as it is activated. Until then, the trigger is held in the ready position, overcoming the force of the main spring, which is held by a lever system. Furthermore, it is off EP2058262 an elevator safety device is known in which the trigger has a clutch approach in the form of a pawl.
  • the invention is based on the problem of creating an elevator safety device with a trigger that consumes less energy in regular operation without having to use a weaker main spring, i.e. without having to cut back on the force that the trigger can raise when activated.
  • the elevator safety device has a trigger.
  • the trigger lets the Address the elevator safety device as soon as it receives a corresponding, usually electrical, control signal, or if there has been a power failure.
  • the trigger comprises an actuating member prestressed by means of at least one main spring that is one or more parts.
  • the main spring gives the actuator the force it needs to do its job.
  • the elevator safety device has an electromagnetic actuator which, by means of the force generated by it electromagnetically, holds the actuating element against the tension of the main spring in its ready position, which it has to assume in regular, trouble-free elevator operation, while the actuating element is actuated by the main spring in its release position is brought as soon as the electromagnetically generated force of the actuator drops, ie completely collapses or at least drops so far that the actuator can no longer remain in its previous position.
  • the electromagnetic actuator does not act directly, but only indirectly on the actuating member.
  • a converter is provided as an intermediary between the actuator and the actuating member.
  • the transducer is designed so that the force that the actuator must apply electromagnetically to hold the actuator in its ready position is less than the force generated by the tension of the main spring. Ideally, the force that the actuator must exert is at least 25%, and more preferably at least 50% less than the force generated by the main spring tension.
  • the elevator safety device is preferably designed in such a way that the elevator safety device additionally has at least one second electromagnetic actuator.
  • the second actuator has the task of resetting the actuating member from its release position back to its ready position.
  • the second actuator is equipped with a means by which it can be coupled again to the actuator located in the release position, which is initially completely separated from the second actuator in its release position.
  • the second electromagnetic actuator is designed in such a way that it can move the actuating element back into its ready position against the force of the at least one spring.
  • the first and second actuators can be identical.
  • the actuator is preferably an electric motor, which acts on the actuating member via a spindle drive that is not designed to be self-locking.
  • the first actuator is continuously energized in regular elevator travel, while the second actuator is not energized in regular elevator travel.
  • a configuration of the elevator safety device in which the first electromagnetic actuator actuates a locking element is particularly preferred.
  • the first actuator and the locking member are designed and interact in such a way that the actuating member is held positively locked in its ready position by the locking member as long as the first electromagnetic actuator is energized.
  • the forces of the main spring are derived in such a way that they do not load the first actuator because it is not in the flow of forces of the main spring.
  • the locking element is brought into a position by the first actuator or its auxiliary spring as soon as it is no longer energized or under-energized, in which the positive locking is canceled.
  • An elevator safety device claimed both in connection with claim 1 and independently thereof is designed as follows: It has a trigger which has an actuating element prestressed by means of at least one main spring and an electromagnetic actuator which, by means of the force it generates electromagnetically, holds the actuating element in its ready position against the tension of the main spring. In contrast, the actuating element is brought into its release position by the main spring as soon as the electromagnetically generated force of the actuator falls.
  • the actuator is a solenoid which, when energized, holds at least one blocking element or blocking rod against the action of an auxiliary spring in a position which forces positive engagement between at least one radially movable holding element and the actuating member.
  • the auxiliary spring exerts no force on the actuator.
  • the at least one retaining element or the at least one retaining ball when the solenoid is energized, engages through a passage opening of a retaining tube in a form-fitting manner in the actuating element and is supported on the blocking rod, on the retaining tube and on the actuating element.
  • the blocking rod is not in the flow of forces, at least as seen in the direction of its longitudinal axis.
  • the force with which the main spring loads the actuator is from the actuator to the at least one holding element or the at least one Transfer retaining ball and passed from there to the retaining tube. This is because the holding element or the holding ball rests against the reveal of the passage opening of the holding tube.
  • figure 1 which shows a particularly preferred exemplary embodiment, the basic structure of the trigger used according to the invention in the elevator safety device can be clearly explained.
  • the trigger 1 has an actuating member 2 on which a main spring 3 acts.
  • the actuating member 2 is designed in the manner of a push rod or a pressure piece which can, for example, press a brake wedge of a brake safety gear into a wedge gap—which will be explained in more detail later with reference to a figure.
  • the actuating member 2 must apply a considerable force in order to be able to press the chock securely into the wedge gap, so that the elevator car is actually caught. This power must also be available in the event of a total power failure. To ensure this, the actuator 2 is when it's from figure 1 occupies the position shown, under the bias of the main spring 3.
  • the main spring 3 is relatively strong, so that the actuating member 2 can become active with a sufficiently large force.
  • the actuator 2 is movable sliding on the support tube 13 stored, while the holding tube 13 is in turn designed to be movable in translation, which will be explained in more detail later.
  • the actuating member 2 preferably has an imaginary cross-section of a T that is hollow on the inside.
  • the "stem" of the T forms a guide section.
  • the main spring 3 overlaps it on the outside, preferably in order to support/guide it. It runs with its inner circumference on the guide tube 13.
  • the imaginary crossbar of the T forms a functional section with the help of which the actuating member can be held in its ready position.
  • the first actuator and the transducer cooperating with it
  • the actuator 2 is by a first electromagnetic actuator in its from the figure 1 shown ready position.
  • this first electromagnetic actuator is a solenoid 11.
  • this solenoid 11 does not act directly on the actuating element 2, but only indirectly via a converter.
  • This converter is formed here by the blocking device or blocking rod 9 coupled directly to the solenoid 11 in conjunction with the at least two retaining balls 10 and the retaining tube 13 .
  • the blocking rod is preferably translationally displaceable parallel to the direction of movement of the actuating member 2 .
  • the holding tube has openings for the holding balls 10 to pass through.
  • This preferred converter thus works according to the principle of the so-called ball locking bolt.
  • instead of the retaining balls 10 differently designed retaining bodies can also be used, for example in the form of a pin, which then z. B.
  • the actuator 2 has a clutch lug which allows the transducer 9, 10, 13 to positively interact with the actuator to hold it in its ready position.
  • the coupling attachment preferably has the shape of a recess 15 which is ideally attached to the inner circumference of the actuating member 2 which is hollow on the inside.
  • the retaining balls 10 have inserted.
  • the retaining balls 10 each reach through a passage opening in the retaining tube 13.
  • the retaining balls 10 are prevented by the blocking rod 9 from moving into the retaining tube 13 in a radially inward direction. In this way, the actuating member 2 is positively locked to the holding tube 13 .
  • the actuating member 2 remains in its ready position. This condition lasts as long as the solenoid 11 is energized.
  • the solenoid 11 As soon as the solenoid 11 is no longer energized, for example because an arbitrary trigger signal is present which interrupts the current supply to the solenoid, or because the voltage supply has collapsed (blackout), the holding force developed by the solenoid collapses.
  • the auxiliary spring 12 which was previously held under tension by the holding force of the solenoid, can move the blocking rod 9, to the right in the present exemplary embodiment.
  • the result of this is that the recess worked into the blocking rod comes to rest in the area radially below the retaining balls 10 .
  • This allows the actuating element 2 with its ramp 17, with its recess 15 is preferably provided to displace the retaining balls 10 in the radially inward direction into the interior of the retaining tube 13 .
  • the actuating member 2 is thus released and can be brought into its release position by the main spring 3, in which it passes on the force imparted to it by the main spring 3 as intended.
  • the actuator 2 now takes the figure 2 shown position.
  • a second electromagnetic actuator is used in order to return the actuating member 2 from its release position to its ready position and to prestress the main spring 3 again.
  • This second electromagnetic actuator is implemented by the electric motor 6 in this exemplary embodiment.
  • This motor 6 interacts with the support tube 13 in such a way that it can translate it back and forth.
  • the motor is preferably a rotary motor, since such a motor is usually significantly cheaper than a linear motor with the same performance, not least because it can work with a gear reduction.
  • the motor 6 preferably acts on the holding tube 13 with the aid of a ball screw drive.
  • the ball screw is designed to be self-locking, so that the main spring 3 also does not cause the ball screw to rotate (if possible not under the influence of general operating vibrations) when the motor 6 is switched off and no longer applies any torque.
  • the motor 6 moves the support tube 13 towards the in Triggering position located actuator - in the embodiment shown here in the drawing so to the right.
  • the holding tube 13 comes out of its in figure 2 shown position to that of figure 3 position shown.
  • This is characterized in that the through-openings in the holding tube, through which the holding balls 10 can be pressed outwards in the radial direction, now overlap again with the recess 15 of the actuating member 2 in the radial direction.
  • the motor 6 is temporarily stopped. Now the first actuator is activated again.
  • the solenoid 11 pulls the blocking rod 9 against the force of the auxiliary spring 12, in the present exemplary embodiment to the left.
  • the retaining balls 10 are pushed back by the blocking rod 9 radially outwards through the passage openings in the retaining tube 13 into the recess 15 of the actuating member 2 and are blocked in this position.
  • the holding tube 13 and the actuating member 2 are now again positively connected or locked to one another.
  • the first actuator now remains activated until the next trigger case, i. H. energized.
  • the motor 6 is reversibly energized in such a way that it pulls the holding tube 13 back into the position (to the left in the case shown in the figure) in which the holding tube holds the actuating element in its ready position against the force of the main spring 3 .
  • the holding tube 13 is from its figure 4 shown position back to that of figure 1 shown position returned.
  • the comparatively strong motor tensions the main spring 3 without difficulty and preferably also brings additional power as so-called.
  • the actuator 2 has again reached its standby position and is ready for the next use.
  • a ball screw drive consists of a threaded sleeve that acts on a threaded rod via balls. As a rule, the threaded sleeve is driven by a motor, while the threaded rod forms the output, which is also preferred here.
  • a ball screw drive is the method of choice because it minimizes friction losses and implements a high speed reduction ratio, so that a significantly smaller and higher-revving motor is sufficient.
  • the ball screw saves the holding tube 13 from rotating. This makes it very easy to accommodate inside the holding tube 13 the first electromagnetic actuator 4 in the form of the solenoid 11, which would be more difficult because of the power supply when the holding tube 13 rotates itself.
  • This exemplary embodiment is distinguished by its particularly compact dimensions, which are made possible by the fact that the blocking rod 9 is accommodated in the holding tube 13 .
  • the design is also characterized by its particularly low power consumption during operation.
  • the solenoid 11 which is generally to be energized over a long period of time, can be comparatively weak because it does not have to apply any force itself to compensate for the force of the significantly stronger main spring 3. Instead, the solenoid 11 only has to apply that much smaller force that is required to overcome the force of the auxiliary spring 12, against which the blocking rod 9 must be held in its blocking-ensuring position. This saves considerable energy.
  • the motor which implements the second actuator here, can be strong and draw a correspondingly large amount of current. In this way and as a result of the thread reduction, with the help of which the motor acts on the actuator 2, the motor 6 can apply large restoring forces - as z. B. are necessary to pull a chock back out of the wedge gap between the guide rail and the actual brake body.
  • the high power consumption of the motor or second actuator is not significant for the energy balance, since this only has to be energized for a short time for the reset process and can then be switched off again permanently until the next "recovery" after "triggering".
  • the first actuator in the form of the solenoid 11 in this embodiment, is housed entirely or at least mostly within the second actuator, which in this embodiment is in the form of an electric motor 6 . This saves a considerable amount of space and makes the trigger 1 smaller.
  • the converter which is implemented in this exemplary embodiment by the blocking rod 9 , the retaining balls 10 or the retaining body and the retaining tube 13 , is accommodated predominantly (or at least 1/3) within the actuating member 2 . This also allows a very compact design.
  • the figure 5 shows the basic functional principle of a further, alternative exemplary embodiment for a trigger 1 to be used according to the invention.
  • the actuating element 2 can be clearly seen here, which is prestressed by the main spring 3 and, after it has been released, receives the force from the main spring 3 which presses the actuating element 2 into its release position and which conveys the force which the actuating element 2 has to raise in order to fulfill its intended function.
  • the first electromagnetic actuator 4 which is used here to hold the actuating element 2 in its ready position and which is de-energized in order to release the actuating element 2 so that it is brought into its release position by the main spring 3 can be.
  • the first electromagnetic actuator 4 consists here of a solenoid 11 and a rocker 19, which is mounted on a threaded nut 24 are arranged or are in operative connection with such.
  • the solenoid acts on the rocker 19.
  • the threaded spindle 20 is driven by an electric motor 6 and as a result moves the threaded nut 24 back and forth in a translatory manner if required.
  • the threaded spindle 20, its electric motor 6 and the threaded nut 24 form the second actuator here.
  • the rocker 19 forms the converter in this embodiment.
  • the rocker 19 is pivoted eccentrically at the bearing point 21.
  • the rocker has a short lever arm 22 and a long lever arm 23.
  • the short lever arm 22 interacts with the actuating element 2 in order to move the actuating element 2 in its to hold a ready position.
  • the long lever arm 23 of the rocker interacts with the solenoid 11. This means that the long lever arm 23 is acted upon by the solenoid 11 with a torque as long as the solenoid 11 is energized. The moment the solenoid 11 is no longer energized, the long lever arm 23 is released. The consequence of this is that the actuating element 2 acted upon by a force by the main spring 3 can push the rocker 19 aside. This allows the actuator 2 to leave its standby position. The force of the main spring 3 pushes it into its release position. The actuating element 2 passes the solenoid 11.
  • the electric motor 6 is actuated in order to bring the actuating member 2 back from its release position into its ready position.
  • the solenoid 11, together with its rocker 19 returns to a position in which the solenoid 11 can be energized.
  • the motor is now energized in such a way that it moves the solenoid 11 together with the rocker 19 held by it and the actuating member 2 back into its ready position against the force of the main spring 3 .
  • the rocker 19 has lever arms 22 and 23 of different lengths, it can be ensured that the solenoid 11 only has to develop relatively small forces to hold the actuating element 2 in its ready position and therefore only has to be supplied with a weak current. For example, if the long lever arm 23 of the rocker 19 is five times longer than the short lever arm 22, then the holding force that the solenoid 11 must apply to hold the actuator 2 in its ready position is five times smaller than the spring force that the main Spring 3 applies and with which the main spring 3 attempts to press the actuator 2 from its ready position into its release position.
  • the long lever arm 23 is longer by at least a factor of 2, ideally at least by a factor of 3, than the short lever arm 22.
  • the threaded spindle 20 preferably has a pitch that gives it self-locking. This means that the threaded spindle 20 does not then either under the influence of the force acting on the actuating member 2, the main spring 3 begins to turn automatically when the electric motor 6 is switched off.
  • the figure 6 shows an alternative third exemplary embodiment for the trigger 1 to be used according to the invention.
  • first electromagnetic actuator 4 and the second electromagnetic actuator 5 coincide, ie only a single electromagnetic actuator is required. This implements both the function of the first electromagnetic actuator and the function of the second electromagnetic actuator, which are provided separately from one another in the other exemplary embodiments.
  • actuating element 2 in this exemplary embodiment, which is held in its ready position against the tension or force of the main spring 3 .
  • an electric motor 6 is provided here as the only actuator.
  • a threaded spindle 20, on which a threaded nut 24 runs, is used here again as a converter.
  • the threaded nut 24 is designed in such a way that it can act on the actuating element 2 in a form-fitting manner.
  • the threaded spindle 20 then begins to rotate so that the threaded nut 24 moves in translation, in the present case figure 6 To the right.
  • the main spring 3 can transfer the actuating element 2 from its ready position to its release position and give the actuating element 2 the force required for the intended actuation.
  • the motor 6 only has to apply a fraction of the force of the main spring 3 in order to hold the actuating element 2 in its ready position.
  • the threaded spindle 20 also represents a converter here, which implements a translation. The translation realized depends on the pitch of the threaded spindle 20 .
  • FIG. 7 shows the figure 7 an example of the elevator safety device ASE according to the invention as a whole.
  • This is a safety gear of a known type.
  • a safety gear consists, among other things, of a so-called chock 30 and a counter-brake lining 31.
  • the chock 30 and the counter-brake lining 31 are positioned on two different sides of a guide rail.
  • the chock 30 is held in its ready position by a trigger 1 of the type previously discussed.
  • the chock 30 is in operative connection with the actuating member 2 of the trigger 1 .
  • the actuator 2 presses the chock 30 against the guide rail under the influence of the force of its main spring 3, which is not visible in this figure because it is hidden in the trigger housing. In the through the figure 7 case shown presses the actuator 2 of the trigger 1, the chock 30 upwards.
  • the chock 30 Since the chock 30 is provided with a sloping guide device 32, it thereby comes into contact with the guide rail. Once the chock 30 with is pressed against the guide rail with sufficient normal force, such a high frictional force arises between the guide rail and the chock 30 that the chock 30 is thereby driven deeper into the wedge gap. This causes the brake wedge 30 and the counter-brake lining 31 to so to speak clamp the guide rail between them. In this way, the car is first braked hard and then the car caught.
  • the trigger 1 for example, a trigger of the Figures 1 to 4 described type (which is not mandatory, triggers of the Figures 5 and 6 described type can also be used here), then one can easily understand that the electric motor 6 due to the fact that it does not act directly on the actuating member, but with a strong transmission through the converter in the form of the spindle drive 7 and the holding tube 13 on the Actuator 2 is able to withdraw the chock again even if it has been driven into the wedge gap with a relatively high force.
  • the figure 8 shows another embodiment of an elevator safety device according to the invention with a trigger based on the Figures 4 to 6 type described as an example.
  • the basic functional principle of this safety gear works like that in the previously published patent application WO 2008/011896 A1 is described.
  • the safety brake device thus does not use a chock here, but a roller 41 which, after activation of the safety brake device, moves into a wedge gap is driven in and, together with the counter-brake lining 44, clamps the guide rail between them, so that strong braking is achieved again and, if necessary, then a catch.
  • Actuation takes place here via a pivoted lever 40 which rotates about a pivot point 45 .
  • the swing lever 40 holds a roller 41 by means of a swing bar 43.
  • An auxiliary spring 42 is provided which holds the roller 41 via the swing bar 43 in a retracted position.
  • the actuating member 2 of the trigger 1 is then returned from its triggering position to its ready position, as described at the beginning of each of the three exemplary embodiments for the trigger 1 .
  • the pivoting lever 40 together with the roller 41 held by it is moved away from the guide rail so that the safety brake device is completely deactivated again.
  • the figure 9 shows a further exemplary embodiment of an elevator safety device according to the invention, in the form of a speed limiter.
  • a governor rope (not shown in the drawing) is braked via the lever B and the safety gears on the elevator car are activated via the force generated in the process.
  • the figure 10 shows a further exemplary embodiment of an elevator safety device according to the invention, in the form of a protected area protection. As soon as their triggers are activated, they slide movement limiters B into the car's track.
  • the figure 11 shows another embodiment of an elevator safety device according to the invention with a pair used here as a tandem pair of those triggers whose design based on the Figures 4 to 6 has been described as an example.
  • the force of the main springs (not visible here) is applied to the actuating elements 2, so that the rod S exerts a force in both directions, which causes the braking or braking safety gears to engage.
  • Protection for an elevator safety device with a trigger (1) is also claimed independently of the claims made to date, which has an actuating element (2) prestressed with the aid of at least one main spring (3) and an electromagnetic actuator (4), which controls the actuating element (2nd ) by means of it electromagnetically generated force against the tension of the main spring (3) in its ready position, while the actuating member (2) is brought into its release position by the main spring (3) as soon as the electromagnetically generated force of the actuator (4) falls, thereby characterized in that the electromagnetic actuator (4) acts on the actuating member (2) via a converter, the converter being designed in such a way that the force which the actuator (4) has to apply electromagnetically moves the actuating member (2) in its ready position to hold is smaller than the force generated by the tension of the main spring (3).
  • an elevator safety device which is characterized in that the converter is provided by a blocking device or blocking rod 9 coupled directly to the actuator (4) in combination with a holding element (10) and a holding tube (13). is formed and the actuator (4) holds the blocking element or the blocking rod (9) against the action of an auxiliary spring (12) in a position which allows positive engagement between the at least one radially movable holding element (10) and the actuating member (2).
  • the auxiliary spring (12) displacing the blocking element in the de-energized or under-energized state of the actuator (4) into a position in which the form-fitting engagement between the at least one holding element and the actuating member (2) is caused by the force of the main spring ( 3) can be canceled.
  • the elevator safety device which is characterized in that the elevator safety device (ASE) also has at least one second electromagnetic actuator (5), which has a means by which it returns to the trigger position Couple the actuating element (2). can, wherein the second electromagnetic actuator (5) is designed so that it can move the actuating member (2) back to its standby position against the force of the at least one main spring (3) after recoupling.
  • Protection for an elevator safety device is also claimed independently of the previous claims, which is characterized in that the first actuator (4) is continuously energized in regular elevator operation, while the second actuator (5) is not energized in regular elevator operation.
  • Protection for an elevator safety device is also claimed independently of the claims made so far, which is characterized in that the first electromagnetic actuator (4) actuates a locking element (9, 10, 13) forming the converter, the first actuator (4) and the locking element (9, 10, 13) are designed and interact in such a way that the actuating element (2) is held positively locked in its ready position by the locking element (9, 10, 13) as long as the first electromagnetic actuator (4) is energized and that Locking member (9, 10, 13) or part of it is brought into a position by the first actuator (4) as soon as it is no longer energized or under-energized, in which the form-fitting locking is canceled.
  • Protection for an elevator safety device (ASE) with a trigger (1) is also claimed independently of the claims made to date, which has an actuating element (2) pretensioned with the aid of at least one main spring (3) and an electromagnetic actuator (4) which The actuating element (2) is held in its ready position by means of the force generated by it electromagnetically against the tension of the main spring (3), while the actuating element (2) is brought into its release position by the main spring (3) as soon as the electromagnetically generated force of the actuator (4), characterized in that the actuator (4) is a solenoid (11) which, when energized, holds at least one blocking element or blocking rod (9) against the action of an auxiliary spring in a position which positive engagement between at least one radially movable holding element (10) and the actuating member (2) forces, wherein the auxiliary spring (12) the Blo When the solenoid (11) is in a de-energized or under-energized state, the backing element moves into a position in which the form-fitting engagement between the at least one holding element and the actuating member (2) can be
  • an elevator safety device which is characterized in that the at least one retaining element or the at least one retaining ball (10) when energized solenoid (11) through a passage opening of a Holding tube (13) engages positively in the actuating member (2) and is supported both on the blocking rod (9), on the holding tube (13) and on the actuating member (2).
  • Protection for an elevator safety device is also claimed independently of the previously made claims, which is characterized in that the holding tube can be driven with the aid of a screw drive, preferably with the aid of a rolling body screw drive.
  • Protection is also claimed for an elevator safety device, which is characterized in that the blocking rod (9) or the blocking element is arranged at least partially, preferably completely, inside the holding tube (13) independently of the claims made up to now.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)

Claims (17)

  1. Dispositif de sécurité pour un ascenseur (ASE), caractérisé en ce qu'un élément d'actionnement (2) est maintenu dans sa position d'attente au moyen d'un mécanisme et contre la force d'un ressort principal (3), ledit mécanisme étant conçu à la manière d'un boulon de verrouillage à billes, des corps de support tels que des billes de support (10) ou des goupilles de verrouillage étant utilisés dans le boulon de verrouillage à billes, l'élément d'actionnement (2) ayant un épaulement d'accouplement sous la forme d'un évidement (15) dans lequel les corps de support s'insèrent en position d'attente, l'évidement permettant à un convertisseur (9, 10, 13) d'interagir par verrouillage positif avec l'élément d'actionnement pour le maintenir dans sa position d'attente.
  2. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 1, caractérisé en ce que le dispositif de sécurité pour un ascenseur (ASE) comporte un déclencheur (1) qui a l'élément d'actionnement (2) précontraint au moyen au moins du ressort principal (3) et un actionneur électromagnétique (4) qui maintient l'élément d'actionnement (2) dans sa position d'attente au moyen de la force générée de manière électromagnétique contre la tension du ressort principal (3), tandis que l'élément d'actionnement (2) est amené dans sa position de déclenchement par le ressort principal (3), dès que la force générée de manière électromagnétique par l'actionneur (4) s'abaisse, l'actionneur électromagnétique (4) agissant sur l'élément d'actionnement (2) via un convertisseur, le convertisseur étant conçu de telle sorte que la force que l'actionneur (4) doit appliquer de manière électromagnétique pour maintenir l'élément d'actionnement (2) dans sa position d'attente est inférieure à la force générée par la tension du ressort principal (3).
  3. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 1 ou la revendication 2, caractérisé en ce que le convertisseur est formé par un dispositif de blocage ou une tige de blocage (9) couplé(e) directement à l'actionneur (4) en combinaison avec un élément de support (10) et un tube de support (13) et, contre l'effet d'un ressort auxiliaire (12), l'actionneur (4) maintient l'élément de blocage ou la tige de blocage (9) dans une position qui force un engagement positif entre le au moins un élément de support radialement mobile (10) et l'élément d'actionnement (2), et, lorsque l'actionneur (4) n'est pas alimenté en courant électrique ou n'est pas suffisamment alimenté en courant électrique, le ressort auxiliaire (12) déplace l'élément de blocage dans une position où l'engagement positif entre le au moins un élément de support et l'élément d'actionnement (2) peut être annulé par la force du ressort principal (3).
  4. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 2 ou la revendication 3, caractérisé en ce que le dispositif de sécurité pour un ascenseur (ASE) comporte en outre au moins un second actionneur électromagnétique (5) qui a un dispositif au moyen duquel il peut être couplé à nouveau à l'élément d'actionnement (2) qui se trouve en position de déclenchement, le second actionneur électromagnétique (5) étant conçu de manière à pouvoir ramener l'élément d'actionnement (2) après le recouplage dans sa position d'attente contre la force du au moins un ressort principal (3).
  5. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 4,
    caractérisé en ce que le premier et le second actionneur sont identiques.
  6. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 5,
    caractérisé en ce que l'actionneur est un moteur électrique (6) qui agit sur l'élément d'actionnement (2) via un entraînement fileté non autobloquant (7).
  7. Le dispositif de sécurité pour un ascenseur (ASE) selon les revendications 2 et 4, caractérisé en ce que le premier actionneur (4) est en permanence alimenté en courant électrique pendant le fonctionnement régulier de l'ascenseur, tandis que le second actionneur (5) n'est pas alimenté en courant électrique pendant le fonctionnement régulier de l'ascenseur.
  8. Le dispositif de sécurité pour un ascenseur (ASE) selon les revendications 2 et 4 ou selon la revendication 7, caractérisé en ce que le premier actionneur électromagnétique (4) actionne l'élément de verrouillage (9, 10, 13) formant le convertisseur, le premier actionneur (4) et l'élément de verrouillage (9, 10, 13) étant conçus et coopérant de telle manière que, tant que le premier actionneur électromagnétique (4) est alimenté en courant électrique, l'élément d'actionnement (2) est maintenu par l'élément de verrouillage (9, 10, 13) au moyen d'un verrouillage positif dans sa position d'attente, et dès que le premier actionneur (4) n'est plus alimenté en courant électrique ou n'est pas alimenté suffisamment en courant électrique, l'élément de verrouillage (9, 10, 13) ou une partie de celui-ci est amené par le premier actionneur (4) en une position dans laquelle le verrouillage positif est annulé.
  9. Le dispositif de sécurité pour un ascenseur (ASE) selon l'une des revendications précédentes 2 à 8, caractérisé en ce que les forces du ressort principal (3) sont détournées par un élément de verrouillage (9, 10, 13) de manière à ne pas charger le premier actionneur (4), car il se trouve complètement à l'extérieur du flux de force du ressort principal (3).
  10. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 1, le dispositif de sécurité pour un ascenseur (ASE) ayant un déclencheur (1) qui comporte l'élément d'actionnement (2) précontraint au moyen au moins du ressort principal (3) et un actionneur électromagnétique (4) qui maintient l'élément d'actionnement (2) dans sa position d'attente au moyen de la force générée de manière électromagnétique et contre la tension du ressort principal (3), tandis que l'élément d'actionnement (2) est amené par le ressort principal (3) dans sa position de déclenchement, dès que la force générée de manière électromagnétique par l'actionneur (4) s'abaisse, l'actionneur (4) étant un solénoïde (11) qui, lorsque il est alimenté en courant électrique, maintient du moins un élément de blocage ou une tige de blocage (9) contre l'effet d'un ressort auxiliaire (12) dans une position qui force un engagement positif entre au moins un élément de support radialement mobile (10) et l'élément d'actionnement (2), et, lorsque le solénoïde (11) n'est pas alimenté en courant électrique ou n'est pas alimenté suffisamment en courant électrique, le ressort auxiliaire (12) déplace l'élément de blocage dans une position où l'engagement positif entre le au moins un élément de support et l'élément d'actionnement (2) peut être annulé par la force du ressort principal (3).
  11. Le dispositif de sécurité pour un ascenseur (ASE) selon la revendication 10,
    caractérisé en ce que, au travers d'un orifice de passage d'un tube de support (13), le du moins un élément de support ou la au moins une bille de support (10) s'engage par un verrouillage positif dans l'élément d'actionnement (2), lorsque le solénoïde (11) est alimenté en courant électrique, en s'appuyant à la fois sur la tige de blocage (9), le tube de support (13) et l'élément d'actionnement (2).
  12. Le dispositif de sécurité pour un ascenseur (ASE) selon les revendications 10 ou 11, caractérisé en ce que le tube de support peut être entraîné de manière à exécuter un mouvement de translation, de préférence un mouvement de translation pure.
  13. Le dispositif de sécurité pour un ascenseur (ASE) selon l'une des revendications 10 à 12, caractérisé en ce que le tube de support peut être entraîné au moyen d'un entraînement fileté, de préférence au moyen d'un entraînement fileté à corps rotatif.
  14. Le dispositif de sécurité pour un ascenseur (ASE) selon l'une des revendications 10 à 13, caractérisé en ce que le solénoïde (11) actionnant la tige de blocage (9) ou l'élément de blocage se trouve au moins partiellement, de préférence complètement, à l'intérieur du moteur (6) qui entraîne le tube de support (13).
  15. Le dispositif de sécurité pour un ascenseur (ASE) selon l'une des revendications 10 à 14, caractérisé en ce que la tige de blocage (9) ou l'élément de blocage est disposé(e) au moins partiellement, de préférence complètement, à l'intérieur du tube de support (13).
  16. Le dispositif de sécurité pour un ascenseur (ASE) selon l'une des revendications 10 à 15, caractérisé en ce que la tige de blocage (9) ou l'élément de blocage et le tube de support (13) sont disposés au moins partiellement, de préférence sur la majeure partie de leur longueur, à l'intérieur du ressort principal (3).
  17. Le dispositif de sécurité pour un ascenseur (ASE) selon l'une des revendications 10 à 13, caractérisé en ce que le au moins un élément de support ou la au moins une bille de support (10) est disposé(e) à l'intérieur de l'élément d'actionnement (2).
EP20162670.2A 2015-11-17 2016-11-17 Dispositif de sécurité d'ascenseur pourvu de déclencheur économe en énergie Active EP3693316B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015106237.0U DE202015106237U1 (de) 2015-11-17 2015-11-17 Aufzugssicherheitseinrichtung mit energiesparendem Auslöser
EP16199347.2A EP3170781B1 (fr) 2015-11-17 2016-11-17 Dispositif de sécurité d'ascenseur doté d'un déclencheur à économie d'énergie

Related Parent Applications (2)

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EP16199347.2A Division EP3170781B1 (fr) 2015-11-17 2016-11-17 Dispositif de sécurité d'ascenseur doté d'un déclencheur à économie d'énergie
EP16199347.2A Division-Into EP3170781B1 (fr) 2015-11-17 2016-11-17 Dispositif de sécurité d'ascenseur doté d'un déclencheur à économie d'énergie

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EP3693316A1 EP3693316A1 (fr) 2020-08-12
EP3693316B1 true EP3693316B1 (fr) 2022-06-15

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EP20162670.2A Active EP3693316B1 (fr) 2015-11-17 2016-11-17 Dispositif de sécurité d'ascenseur pourvu de déclencheur économe en énergie

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WO2008011896A1 (fr) 2006-07-26 2008-01-31 Wittur Ag Dispositif de freinage ou de blocage destiné à la sécurisation temporaire d'un espace de sécurité et similaires
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ES2926983T3 (es) 2022-10-31
DE202015106237U1 (de) 2017-02-20
HUE059715T2 (hu) 2022-12-28
EP3693316A1 (fr) 2020-08-12
EP3170781B1 (fr) 2021-05-19
ES2882541T3 (es) 2021-12-02
EP3170781A1 (fr) 2017-05-24

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