EP3715302A1 - Dispositif de commande et procédé de commande d'un frein d'un composant pouvant être déplacé, en particulier d'un contrepoids, d'une installation d'ascenseur - Google Patents

Dispositif de commande et procédé de commande d'un frein d'un composant pouvant être déplacé, en particulier d'un contrepoids, d'une installation d'ascenseur Download PDF

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Publication number
EP3715302A1
EP3715302A1 EP19165737.8A EP19165737A EP3715302A1 EP 3715302 A1 EP3715302 A1 EP 3715302A1 EP 19165737 A EP19165737 A EP 19165737A EP 3715302 A1 EP3715302 A1 EP 3715302A1
Authority
EP
European Patent Office
Prior art keywords
actuating
brake
actuating device
component
fixing element
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.)
Withdrawn
Application number
EP19165737.8A
Other languages
German (de)
English (en)
Inventor
Beat DUSS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP19165737.8A priority Critical patent/EP3715302A1/fr
Publication of EP3715302A1 publication Critical patent/EP3715302A1/fr
Withdrawn legal-status Critical Current

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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
    • B66B5/16—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
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093—Testing of safety devices

Definitions

  • the present invention relates to an actuating device and a method for actuating a brake of a displaceable component such as a counterweight of an elevator installation.
  • an elevator car In elevator systems, an elevator car is typically displaced vertically between different height levels within an elevator shaft.
  • the elevator car is mostly held with the help of rope-like suspension elements.
  • the rope-like suspension means can be moved by a drive machine and in this way the elevator car can be displaced.
  • one or more counterweights are usually provided in the elevator installation, which are typically also held by the rope-like suspension means and are displaced with the aid of them. Both the elevator car and the counterweight represent relocatable components of the elevator system.
  • At least one brake is typically provided on each of the displaceable components.
  • a safety brake is usually provided on the counterweight, which is activated in particular in the event that the support means tear or become detached from the counterweight and the counterweight thus threatens to crash in an uncontrolled manner.
  • a brake can be provided on the counterweight and / or on the elevator car, which brakes the elevator car in the event of an overspeed, i.e. in the event that it moves faster than a permissible maximum speed.
  • the brakes of an elevator system provided on the displaceable components must be checked for correct and reliable functioning before the elevator system is put into operation and / or as part of maintenance measures.
  • a safety brake of a counterweight in an elevator system is checked by a technician manually triggering the safety brake.
  • a trigger element is typically provided on the safety brake, which can be actuated by the application of force and slightly displaced, thereby activating the safety brake.
  • the release element can interact, for example, with a speed limit cable.
  • the technician can, for example, while standing on the roof of the elevator car, grip the speed limit rope by hand or attach a strap to this or the release element and hold the strap by hand. The technician can then move the elevator car upwards, for example, whereby the counterweight moves downwards at the same time, so that a mechanical pull is caused on the speed limiting rope or the belt and the safety brake is triggered.
  • an actuating device and a method for actuating a brake of a displaceable component of an elevator system with the aid of which the function of the brake can be checked simply, reliably and in particular with low risk.
  • an actuating device for actuating a brake of a displaceable component of an elevator system.
  • the actuating device has a rope-like actuating element and a fixing element.
  • the cable-like actuator is configured to be attached to an activation mechanism of the brake.
  • the fixing element is configured to be attached to a component that is stationary relative to the displaceable component Lift system to be attached.
  • the fixing element and the actuating element are mechanically connected to one another.
  • the fixing element has at least one magnet which is designed and arranged in such a way that it holds the fixing element in a force-locking manner on the stationary component when it rests on the stationary component.
  • An embodiment of the actuating device proposed here only needs to have a rope-like actuating element and a fixing element.
  • the actuating device should be able to be attached to an activation mechanism or in particular to a release element of the brake.
  • the fixing element With the fixing element, the actuating device should be able to be attached to a stationary component of the elevator system.
  • the actuating element and the fixing element are mechanically connected to one another.
  • the displaceable components of the elevator system the brake of which is to be tested and on which the activation mechanism or the release element of the brake is also arranged
  • a force is exerted by the fixing element attached to the stationary component effected via the rope-like actuating element on the activation mechanism attached thereto or the trigger element attached thereto. Due to this force, the activation mechanism or the release element can trigger the brake in a targeted manner so that its correct function can be tested.
  • the technician can thereby install the actuator, i. attach the cable-like actuating element to the activation mechanism or the triggering element and attach the fixing element to the stationary component, while the displaceable components, i. the elevator car and / or the counterweight stand still.
  • the technician Only after the actuating device has been installed can the technician allow the displaceable components to move relative to one another and thereby trigger the brake to be tested via the actuating device.
  • the technician does not need to hold any moving components or tools by hand or even get close to them. The technician's safety during the test process can thereby be considerably improved.
  • such an actuating device can advantageously be used.
  • a technician can first attach the rope-like actuating element of the actuating device to the actuating device Attach the activation mechanism or release element of the brake and attach the fixing element of the actuating device to the component of the elevator system that is stationary relative to the displaceable component by attaching the fixing element with its at least one magnet to a magnetizable area of the stationary component.
  • the technician no longer needs to hold any of the components of the actuating device manually or to manually hold any tools used for their installation.
  • the displaceable component that is, for example, the counterweight, the brake of which is to be tested, can then be displaced relative to the stationary component to which the fixing element was attached and thus gradually removed from the stationary component.
  • the rope-like actuating element tightens over time.
  • the shifting of the displaceable component can be continued until the actuating device due to the fact that its fixing element is attached to the stationary component and the actuating element connected to the fixing element is attached to the activation mechanism or the release element of the brake that moves away together with the displaceable elevator component, a force is exerted on the activation mechanism or the release element which is sufficient to release the brake.
  • the brake to be tested can be actuated with the aid of the actuating device, in that the technician has to carry out some easy manual activities beforehand in order to attach the actuating device to the triggering element on the one hand and to the stationary component on the other.
  • the brake can be triggered automatically or automatically using the previously installed actuating device.
  • the rope-like actuating element should be an elongated element which can be subjected to tensile loads, but which can be bent transversely to its direction of extension with little effort.
  • the rope-like actuating element can be a rope, a belt, a belt, a wire, a cable or the like.
  • the rope-like actuating element can be formed with a material that can withstand high tensile loads or consist of this.
  • the material therein may be provided in the form of fibers or in the form of thin wires or strands. Metals, in particular steel, but also highly resilient plastics can be used as materials.
  • the rope-like actuating element can for example have a length of at least 50 cm.
  • the actuating element can also be significantly longer, for example longer than 1 m.
  • Such a long actuating element can easily be attached to the actuating mechanism to be actuated or in particular to the actuating element of the brake that is to be actuated when the actuating device is attached.
  • the actuation element can be looped around the release element.
  • the actuator should not be too long, e.g. for example shorter than 5 m or at least shorter than 10 m in order to be able to transport and install it easily.
  • the rope-like actuating element can be attached in different ways to the activation mechanism to be actuated or, in particular, to the actuating element of the brake that is to be actuated.
  • the bendable actuating element can be looped around the triggering element or a partial area of the triggering element.
  • the rope-like actuating element could simply be knotted to the activation mechanism or triggering element. However, once a knot has been put under tension, it may be difficult to untie it.
  • the rope-like actuating element can have a loop at one end which faces away from the fixing element of the actuating device.
  • a loop can be closed, for example, by attaching a free end of the rope-like actuating element to an area of the same in front of it Actuating element is connected.
  • the free end can be knotted, crimped, spliced or the like to the area in front of it.
  • the loop can have a fixed circumference, ie it cannot be tightened under load.
  • the rope-like actuating element can be attached to the activation mechanism or the triggering element in a simple and in particular simply releasable manner such that a tensile force can be exerted on the activating mechanism or the triggering element via the rope-like actuating element.
  • the loop can be formed with a circumference which is sufficient to be able to move the fixing element of the actuating device through this loop.
  • the loop provided at one end of the rope-like actuating element can be sufficiently large to be able to push the fixing element attached to the opposite end of the actuating element through this loop.
  • the rope-like actuation element can be looped around the activation mechanism to be actuated or the release element of the brake, for example, and then the fixing element can be pushed through the loop of the actuation element.
  • another loop is formed which runs around the activation mechanism to be operated or the release element to be operated and which closes when a tensile load is applied.
  • the actuating element provided with the loop at its free end can thus be fastened in a very simple and easily releasable manner to the release element of the brake that is to be actuated.
  • the fixing element In order to be able to fasten the fixing element to the stationary component of the elevator system in a simple, easily releasable and secure manner, it has at least one magnet.
  • the fixing element can thus simply be "clapped" on the stationary component with its magnet and then hold on the stationary component in a non-positive manner.
  • the magnet is designed in such a way that the magnet is drawn towards the stationary component due to the magnetic field and is then held on the stationary component.
  • the magnet can do both orthogonal to the surface of the stationary component as well as parallel to this surface can be held in a force-locking manner.
  • the magnet can only be released from the stationary member if a sufficiently large releasing force is exerted orthogonally to the surface of the stationary member. Similarly, the magnet can only be moved parallel to the surface of the component if a force is exerted parallel to the surface of the component which is greater than the frictional force between the magnet and the surface of the component.
  • a rail which is stationarily anchored in the elevator shaft can serve as a stationary component of the elevator installation.
  • the stationary component can be a guide rail or a brake rail.
  • the stationary component can extend longitudinally through large areas of the elevator shaft.
  • several stationary components can be provided at different positions within the elevator shaft.
  • the stationary component can consist of a magnetic or magnetizable material, in particular an iron-containing material, or be formed with this.
  • the surface on which the fixing element is to be attached to the stationary component can extend parallel to a direction in which the displaceable elevator component can be displaced relative to the stationary component. If, as part of a process for testing the brake of the displaceable elevator component, the displaceable elevator component is displaced relative to the stationary component, a tensile force acting parallel to the surface of the stationary component can be generated on the fixing element. Since the fixing element is only attached to the stationary component in a non-positive manner via its magnet, but not positively or even cohesively, the fixing element can on the one hand withstand a tensile force acting on it sufficiently to be able to bring about the force to actuate the release element of the brake.
  • the fixing element In order to be able to fasten the fixing element to the stationary component of the elevator system even more simply and reliably, it can have at least two magnets and the magnets can be oriented in different directions. In other words, several magnets can be provided on the fixing element. At least two of these magnets should advantageously not be aligned parallel to one another, but rather be oriented in different directions. Such differently oriented magnets cause magnetic fields that generate attractive forces in different directions. In particular, it can be advantageous to provide two magnets on the fixing element which are oriented in orthogonal directions to one another. With the help of such magnets, the fixing element can be fixed, for example, to a stationary component such as a rail, which likewise has surfaces that are oriented transversely, in particular orthogonally, to one another. The two differently oriented magnets can hold the fixing element in a non-positive manner even more reliably on such a stationary component.
  • the fixing element can comprise a holding element on which the at least one magnet is fixed.
  • the fixing element can have a type of substrate to which the magnet or preferably the plurality of magnets are attached.
  • the holding element should have a structure and / or material-related strength that is sufficiently high to be able to withstand the forces on the actuating device and in particular its holding element when testing the functionality of a brake.
  • the holding element can be in one piece.
  • the holding element can be formed from a metal sheet.
  • the holding element can be a stamped and bent component.
  • the holding element can have a shape that is complementary to the stationary component.
  • the holding element can have a shape with which it can be complementarily attached to a contour of the stationary component.
  • the complementary shape of the holding part can be designed in such a way that the multiple magnets attached to the holding element can be brought into flat contact with surfaces of the stationary component.
  • the magnets are preferably attached to the holding element in different partial areas and furthermore preferably in different orientations so that after the fixing element has been attached to the stationary component they can adhere to different and preferably differently oriented surfaces of the stationary component.
  • the holding element can have a shape such that the holding element can grip around the stationary component at least in some areas.
  • the holding element can have partial areas which are opposite one another and between which areas of the stationary component can be received.
  • the holding element can have a U-shaped cross section at least in partial areas.
  • Fig. 1 shows an elevator installation 1, in which displaceable components 2 in the form of an elevator car 3 and a counterweight 5 can be displaced within an elevator shaft 13 in opposite vertical directions.
  • the elevator car 3 and the counterweight 5 are held via a suspension element 7, which can be displaced with the aid of a drive machine 9.
  • the suspension element 7 runs over pulleys 11 on the elevator car 3 or the counterweight 5.
  • Figure 1 is a dashed bordered area of the counterweight 5, in which the brake 15 is located, enlarged and shown in a view rotated by 90 °.
  • the brake 15 has an activation mechanism 17, with the aid of which the brake 15 can be activated or triggered.
  • the activation mechanism 17 is designed (not shown in detail in the figure) to activate the brake 15, for example if the support means 7 holding the counterweight 5 tear or in response to a sudden strong acceleration.
  • a trigger element 19 is integrated into the activation mechanism 17, which activates the activation mechanism 17 when a force is applied.
  • brake shoes 21 of brake 15 cooperate with surfaces of a guide rail 29 in order to generate friction between them and thus to brake counterweight 5 quickly and effectively.
  • the actuating device 23 has a rope-like actuating element 25 and a fixing element 27.
  • the actuating element 25 can be attached to the triggering element 19 of the brake 15, for example by being looped around this triggering element 19 in a loop 41.
  • An opposite end of the operating element 25 is connected to the fixing element 27.
  • the fixing element 27 can be attached to a stationary component 31 such as the guide rail 29.
  • the fixing element 27 has a holding element 35 on which one or more magnets 33 are provided. The magnets 33 can hold the fixing element 27 reliably in a non-positive manner on the guide rail 29, which is usually magnetizable.
  • the rope-like actuating element 25 has a length of approximately 80 cm.
  • the actuating element 25 can, for example, be a rope made of plastic fibers.
  • a loop 37 is formed at a free end of the actuating element 25.
  • a circumference of the loop 37 is selected to be large enough to be able to move the fixing element 27 through the loop 37.
  • the height h of the loop can be more than 7 cm, for example.
  • the actuating element 25 is attached to the fixing element 27.
  • the fixing element 27 has a holding element 35.
  • the holding element 35 is formed as a one-piece stamped and bent component from a metal sheet.
  • three magnets 33 are arranged on the holding element 35.
  • a geometry of the holding element 35 is selected such that the holding element 35 is approximately complementary to a contour of the stationary component 31, i.e. in particular the guide rail 29 on which the fixing element 27 is to be fixed.
  • the holding element 35 is U-shaped at least in partial areas, so that it can reach around the guide rail 29 at least in areas, i.e. can be arranged around opposite surfaces of the guide rail 29.
  • the brake 15 of the displaceable elevator component 2 or in particular the safety brake of the counterweight 5 can be checked for correct functioning in a simple manner that is safe for a technician 39 to carry out.
  • the technician can fasten the actuating element 25 to the release element 19 of the brake 15 by looping the loop 37 around the release element 19 and then guiding the fixing element 27 through this loop 37.
  • This forms another loop 41 (see Fig. 1 ), which closes under tensile load and can then exert a tensile force on the trigger element 19.
  • the technician 39 can attach the fixing element 27 to the guide rail 29 as a stationary component 31 so that the fixing element 27 with its magnets 33 is held on the guide rail 29.
  • the technician 39 can then have the two displaceable components 2, ie the elevator car 3 and the counterweight 5, displaced relative to the guide rail 29 as a stationary component 31, for example by suitably controlling the drive machine 9.
  • the relocation can continue until the Tensioned rope-like actuating element 25 and exerting a force on triggering element 19 which is sufficient to trigger brake 15.
  • the actuating device 23 does not cause any excessive forces on the release element 19 of the brake 15 and / or the guide rail 29 as a stationary component 31, since that The fixing element 27 with its magnets 33 is held on the guide rail 29 only in a force-locking manner, but not in a form-locking or even material-locking manner. Accordingly, if excessive forces are exerted in a direction parallel to the direction of extension of the guide rail 29 and thus parallel to a direction of displacement of the displaceable components, the fixing element 27 can slide along the surface of the guide rail 29 without damaging it and without excessive force at the other end To effect forces on the trigger element 19.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP19165737.8A 2019-03-28 2019-03-28 Dispositif de commande et procédé de commande d'un frein d'un composant pouvant être déplacé, en particulier d'un contrepoids, d'une installation d'ascenseur Withdrawn EP3715302A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19165737.8A EP3715302A1 (fr) 2019-03-28 2019-03-28 Dispositif de commande et procédé de commande d'un frein d'un composant pouvant être déplacé, en particulier d'un contrepoids, d'une installation d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19165737.8A EP3715302A1 (fr) 2019-03-28 2019-03-28 Dispositif de commande et procédé de commande d'un frein d'un composant pouvant être déplacé, en particulier d'un contrepoids, d'une installation d'ascenseur

Publications (1)

Publication Number Publication Date
EP3715302A1 true EP3715302A1 (fr) 2020-09-30

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EP19165737.8A Withdrawn EP3715302A1 (fr) 2019-03-28 2019-03-28 Dispositif de commande et procédé de commande d'un frein d'un composant pouvant être déplacé, en particulier d'un contrepoids, d'une installation d'ascenseur

Country Status (1)

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EP (1) EP3715302A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004203620A (ja) * 2002-10-31 2004-07-22 Hitachi Building Systems Co Ltd エレベータのつり合いおもりクリアランス確認方法及び確認装置
US20130248298A1 (en) * 2012-03-20 2013-09-26 Inventio Ag Safety brake device for an elevator installation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004203620A (ja) * 2002-10-31 2004-07-22 Hitachi Building Systems Co Ltd エレベータのつり合いおもりクリアランス確認方法及び確認装置
US20130248298A1 (en) * 2012-03-20 2013-09-26 Inventio Ag Safety brake device for an elevator installation

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