EP3433198B1 - Installation d'ascenseur avec un élément de suspension entouré en partie d'un boîtier électroconducteur, en particulier sur un ensemble poulie de renvoi - Google Patents

Installation d'ascenseur avec un élément de suspension entouré en partie d'un boîtier électroconducteur, en particulier sur un ensemble poulie de renvoi Download PDF

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Publication number
EP3433198B1
EP3433198B1 EP17711243.0A EP17711243A EP3433198B1 EP 3433198 B1 EP3433198 B1 EP 3433198B1 EP 17711243 A EP17711243 A EP 17711243A EP 3433198 B1 EP3433198 B1 EP 3433198B1
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EP
European Patent Office
Prior art keywords
housing
deflecting roller
supporting means
electrically conductive
elevator installation
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.)
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EP17711243.0A
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German (de)
English (en)
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EP3433198A1 (fr
Inventor
Florian Dold
Volker Zapf
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Inventio AG
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Inventio AG
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Priority to PL17711243T priority Critical patent/PL3433198T3/pl
Publication of EP3433198A1 publication Critical patent/EP3433198A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers

Definitions

  • the present invention relates to an elevator installation and a deflection roller arrangement for such an elevator installation.
  • an elevator car In elevator systems, an elevator car is typically used to carry persons or objects within a building or structure largely vertically.
  • the elevator car is held and moved by means of a suspension.
  • the support means usually has one or more ropes or belts.
  • the suspension element In order to be able to relocate the elevator car, the suspension element is usually moved by means of a drive machine.
  • the cables or belts of the suspension element are in this case usually moved by a driven by the drive machine traction sheave.
  • a counterweight is also fastened to the suspension element, which moves in a direction opposite to the elevator car when the suspension element is displaced by means of the drive machine.
  • the elevator car and the counterweight in this case form displaceable elevator components of the elevator car, which are respectively held by means of the suspension element.
  • the cords or straps of the suspension means are typically attached at their ends to the building, for example at an elevator shaft ceiling, and hold the elevator cage via one or more pulley arrangements attached to this elevator cage.
  • Other types of cable or belt guide are possible, usually always at least one Umlenkrollenanowski extract is provided in order to deflect a direction of movement of the cables or belts, usually at least about 90 °, often even by about 180 °.
  • Modern suspension means usually consist of a plurality of metal wires or strands (hereinafter referred to merely as "metal wires") by means of which the load of the elevator car can be maintained.
  • the metal wires are usually surrounded by a plastic sheath to protect them, for example against corrosion, to protect against mechanical damage and / or to increase a desired friction with the traction sheave can.
  • plastic-coated support means can hardly be seen from the outside, whether received therein metal wires are intact.
  • a method for monitoring a condition of a suspension element in an elevator system in which electrical currents are conducted through the electrically conductive metal wires or strands. Based on a behavior of these electrical currents can be deduced a state of the support means, since, for example, damaged metal wires obstruct a flow of current or even prevent.
  • Such or similar acting methods as well as suitably designed devices are inter alia in EP 1 730 066 B1 . US 7,123,030 B2 . US 2011/0284331 A1 . US 2013/0207668 A1 and further described.
  • WO 2014/191374 A1 discloses an elevator system according to the preamble of claim 1 and a pulley arrangement according to the preamble of claim 8.
  • an elevator installation which has a suspension element, a displaceable elevator component held by the suspension element, such as an elevator car or a counterweight, and a housing at least partially surrounding the suspension element.
  • the housing is arranged and configured such that the suspension element can be moved relative to the housing.
  • a directed to the support means surface of the housing should in this case be electrically conductive and be electrically grounded.
  • the housing has a plastic housing housing body and arranged on the surface facing the support means electrically conductive layer.
  • a pulley arrangement for an elevator installation which has a deflection roller and a housing.
  • the deflection roller should be rotatably mounted relative to the housing.
  • the housing surrounds the deflection roller at least partially and adjacent, but preferably at least slightly spaced, to a surface of the deflection roller.
  • a directed to the pulley surface of the housing is electrically conductive and connected to an electrical connection for connection to an electrical ground.
  • the housing has a housing body made of plastic and an electrically conductive layer arranged on the surface facing the deflection roller.
  • the support means should be able to move relative to the housing.
  • the housing may be hollow and open at opposite ends so that the support means can be moved through the open ends and through the hollow housing.
  • the housing may also surround the support means only partially, that is For example, have a U-shaped cross section, through the interior of the support means can be moved through.
  • a directed towards the support means surface of the housing should be designed to be electrically conductive and connected to an electrical ground. If the suspension element locally surrounded by the housing is damaged, for example, on its plastic coating, contact between the metal sheaths of the suspension element no longer protected by the plastic sheathing on the one hand and the electrically conductive surface of the housing on the other hand can occur.
  • a contact can be done both mechanically and electrically.
  • this surface of the housing is electrically grounded, it can thus come to an electrical grounding of her standing in contact with the wire of the suspension element.
  • a safety monitoring unit which monitors the electrical properties of the suspension due to electrical current conducted through its metal wires, as the electrical characteristics of the suspension as a result of such ground fault change significantly.
  • the elevator installation additionally has a deflection roller.
  • the suspension element holds the displaceable elevator component, that is to say in particular the elevator car, by at least partially wrapping around this deflection roller.
  • the housing surrounds the deflection roller at least partially in a region in which the suspension element wraps around the deflection roller, wherein the housing surrounds the deflection roller at least slightly spaced from the suspension element.
  • a deflecting roller arrangement with at least one deflection roller can be provided, which with the help of the deflection roller at least partially surrounding housing can serve not only to deflect a direction of movement of the suspension element, but also any damage in the suspension element, in particular in a shell of the Tragstoffs to be able to detect.
  • the deflection roller can be fastened, for example, to the displaceable elevator component and moved together with it within the elevator shaft.
  • the deflection roller can also be fixedly mounted in the elevator shaft.
  • the deflection roller serves to deflect the suspension element, which at least partially wraps around the deflection roller on its lateral surface, that is to change its direction of movement, so that the deflected suspension element can hold the elevator cage or the counterweight against its gravitational force within the elevator shaft and move it if necessary ,
  • the housing at least partially surrounds the deflection roller in an area in which the suspension element wraps around the deflection roller, on the one hand it can be achieved that the housing can be easily fastened, for example, to a bearing of the deflection roller so that the housing is held adjacent to the deflection roller is, however, in contrast to the mounted pulley itself can not rotate but can be mounted location and orientation fixed, for example on an elevator car.
  • the housing can thus be installed, for example, forming together with this guide roller as a uniform deflection roller assembly.
  • the housing and in particular its electrically conductive surface, extend close to a region in which the suspension element wraps around the deflection roller and thus is itself curved.
  • the support means there is an increased likelihood that in the case of a local damage of a sheath of the support means parts of the metal wires received therein emerge from the sheath and come into contact with the electrically conductive surface of the housing.
  • a probability of being able to detect such damage to the suspension element due to the then adjusting electrical ground fault can greatly increase.
  • the housing is preferably designed such that it surrounds the deflection roller spaced apart from the support means in order to avoid friction with the support means and a concomitant wear as possible.
  • the electrically conductive surface of the housing should be as close as possible to the support means in order to increase chances of being able to detect damage to the suspension element.
  • a minimum distance between the surface of the suspension element closest to the housing and the electrically conductive surface of the housing opposite this surface should be smaller than a thickness of the suspension element, preferably less than 50% or even less than 20% of the thickness of the suspension element.
  • a distance may preferably be less than 3 cm, preferably less than 1 cm or even less than 5 mm, in particular in a range of 1 mm to 3 mm.
  • the surface of the housing directed towards the suspension element is arranged opposite a rear side surface of the suspension element.
  • the rear side surface of the support means is arranged opposite to a front side surface of the support means, with which the support means bears against a deflection roller and / or a traction sheave.
  • a suspension element used in an elevator system usually has a front side surface, sometimes referred to as a contact surface, with which it is moved along, for example, on a lateral surface of a deflection roller or a traction sheave.
  • the front surface of the support means is structured, that is, it has, for example, longitudinally extending grooves, which may have in cross-section, for example, a V-shape, a U-shape or a rectangular shape.
  • a support means for example designed as a belt, has a rear side surface which normally does not come into mechanical contact with a deflection roller and / or a traction sheave.
  • the back surface of the support means is usually not structured but just. Frequently, a sheath of metal wires within the suspension means is thicker on the front surface than on the rear surface. Accordingly, a risk of, for example, exposing these metal wires to damage such a sheath on the back surface may be greater than at the front surface.
  • broken metal wires inside the casing may be pressed outward, ie towards the rear side surface, so as to bend.
  • the housing has a housing body made of plastic and an electrically conductive layer arranged on the surface facing the support means.
  • the housing can of course also consist of an electrically conductive material such as a metal and thus be electrically conductive in its entire structure.
  • an electrically conductive material such as a metal
  • the housing usually does not need to withstand high mechanical loads, so that a design of the housing with a housing body made of plastic generally satisfies the mechanical requirements of the housing.
  • the housing body is provided with an electrically conductive layer on this surface.
  • the electrically conductive layer may be, for example, a metal layer.
  • Such an electrically conductive layer may, for example, be vapor-deposited, printed or otherwise applied to the desired surface.
  • the electrically conductive layer may be formed by means of an electrically conductive film.
  • the electrically conductive foil can For example, be a metal foil or be a metal-coated film, which can be suitably adhered to the surface of the housing or the housing body directed to the support means, adhered to or otherwise attached thereto.
  • the film may preferably be self-adhesive.
  • Such an electrically conductive film can be both easy to produce and simply attach to the housing or the housing body.
  • the housing may have a housing body made of plastic and an electrically conductive track arranged on the surface facing the suspension element.
  • a large-area electrically conductive layer does not necessarily have to be provided on the housing, but it may be sufficient to provide only a relatively narrow electrically conductive elongated conductor track on the surface of the housing facing the suspension element.
  • Such a conductor can be formed, for example, similar to a circuit board locally on a surface of the body, for example by printing and curing an electrically conductive paste or in a similar manner.
  • the electrically conductive surface of the housing is grounded by means of a cable attached to the housing.
  • the cable is in electrical contact with, for example, the electrically conductive layer or the electrically conductive conductor track on the surface of the housing directed towards the suspension element.
  • the cable may be connected to an electrical ground potential.
  • the suspension element has a plurality of sheathed electrically conductive metal wires and the elevator system has a safety monitoring unit, which applies an electrical voltage to the metal wires of the suspension element and is designed to detect an electrical ground fault of these metal wires.
  • the safety monitoring unit can be used, for example, to detect when an electrical current caused by the applied electrical voltage changes due to the wires of the suspension element due to an electrical ground fault. From such a change in the applied voltage or a current induced thereby by the suspension means can then be inferred to local damage to the suspension element, in particular damage to the sheath of the support means, which lead to electrical contact between the metal wires and the electrically conductive surface of the housing surrounding the suspension means.
  • the housing is preferably fastened to the displaceable elevator component, that is to say in particular to the elevator car or the counterweight.
  • the housing may be part of a deflection roller assembly, which is fastened to the elevator car and via which the elevator car is held by the suspension element.
  • deflecting roller arrangements already conventionally often have precautions to prevent, for example, a suspension element that is not temporarily under tension from jumping off in the axial direction from the deflection roller.
  • holding devices adjacent to a lateral surface of a deflection roller, on which the support means is normally guided, holding devices may be provided, which are sometimes referred to as "retainers".
  • Such holding devices are designed to avoid that the support means from the lateral surface of the guide roller, in particular in the case of a slack rope situation, in the e.g. a usually profiled support means belt is no longer guided by its profile on the pulley, can move away.
  • such a holding device can be further developed suitable for the housing defined herein by taking precautions on a surface of the housing directed towards the suspension element in order to make this surface electrically conductive and then electrically ground this electrically conductive surface.
  • the surface of the housing directed towards the deflection roller is arranged opposite the outer surface of the deflection roller. Since in practical use of Umlenkrollenanssen within a lift system, the support means of the elevator system abuts against this lateral surface of the guide roller and this at least partially wraps, thus the opposite of this lateral surface of the guide roller arranged surface of the housing is also opposite to the support means, in particular to the back surface of the support means, arranged. This can lead to the advantages described above with respect to a simple detectability of a ground fault due to damage to the sheathing of the suspension element.
  • the housing has a housing body made of plastic and an electrically conductive layer arranged on the surface facing the deflection roller.
  • the electrically conductive layer may be formed by means of an electrically conductive film.
  • the housing can have a housing body made of plastic and an electrically conductive track arranged on the surface facing the deflection roller.
  • the deflection roller assembly may additionally comprise a cable which is connected to the electrical connection of the housing and which serves for electrical connection to a ground potential.
  • the deflection roller arrangement may further comprise a breakage detection device with at least one electrically conductive track running along the housing.
  • a breakage detection device can serve to detect a breakage of the housing, as may occur, for example, due to a mechanical overload. For this purpose, for example, it can be monitored whether the conductor track running on the housing has been damaged or even interrupted as a result of the breakage. For example, accidental axial displacement of the suspension element during operation of the elevator installation, in particular a so-called belt jump in the axial direction, can be detected by the breakage detection device.
  • Fig. 1 1 illustrates components of an elevator installation 1 according to the invention.
  • an elevator cage 3 and a counterweight 5 are provided as displaceable elevator components 4.
  • the elevator car 3 and the counterweight 5 are held by means of a suspension 7.
  • the support means 7 may for example comprise a plurality of ropes or straps.
  • the support means 7 is attached at its ends to a ceiling 8 of the hoistway 2 and wraps around each deflection rollers 13, 15 which are fixed to the counterweight 5 and to the elevator car 3.
  • the support means 7 both the elevator car 3 as also keep the counterweight 5 against the gravitational force acting on it.
  • the support means 7 can be moved by means of a prime mover 9 by the support means 7 is wound around a traction sheave 11 of this prime mover 9 and the traction sheave 11 is driven to rotate.
  • a housing 17 is arranged in each case (in Fig. 1 only shown very schematically).
  • the housing 17 surrounds both the respective deflection roller 13, 15 and the support means 7 deflected via the deflection roller 13, 15 at least partially.
  • the housing 17 is configured and arranged such that the support means 7 can continue to move along the respective deflection roller 13, 15, wherein the respective deflection roller 13, 15 is rotatably mounted relative to the housing 17.
  • the housing 17 is fixedly attached to the counterweight 5 or to the elevator car 3.
  • the housing 17 is provided, inter alia, to prevent the support means 7 from slipping off a lateral surface of the respective deflection roller 13, 15 or jumping off the latter, in particular when a train on the suspension element 7, for example during an emergency braking thereof, temporarily decreases in areas and thus comes to a so-called slack rope.
  • the elevator installation 1 furthermore has a safety monitoring unit 19.
  • This safety monitoring unit 19 is designed, inter alia, to monitor a condition of the suspension element 7 and in particular to recognize it if damage occurs to the suspension element 7.
  • the safety monitoring unit 19 is designed to apply an electrical voltage to electrically conductive wires present in the suspension element 7 and to characterize properties of a subsequent electrical current through these wires. On the basis of the characterized properties of the electrical current, the safety monitoring unit 19 can then draw conclusions about a current state of the suspension element and in particular of its wires embedded therein.
  • the housing 17 are formed on its side facing the support means surface 47 is electrically conductive and via cable 21 (in Fig. 1 only once and shown very schematically) connected to a ground potential 23 and thus grounded.
  • an embedded wire in the support means 7 passes through a local damage of a sheath of the support means 7 to the outside and comes into contact with the electrically conductive surface 47 of the housing 17, an earth fault, which is connected by the wires connected to the security monitoring unit 19 can be detected.
  • the housing 17 also in other than in Fig. 1 can be executed shown manner.
  • corresponding housing 17 elsewhere in the elevator installation 1 in a manner at least partially surrounding the suspension element 7.
  • a housing 17 could be provided at or near the traction sheave 11 of the prime mover 9.
  • a housing 17 could also be provided in an area where it surrounds only the support means 7 locally, but not a deflection roller 13, 15 or a traction sheave 11.
  • a plurality of housing 17 are provided for a plurality Umlenkrollenanssenen 25. In an elevator installation 1, however, it may already be sufficient to provide only such a housing 17.
  • FIG. 2 illustrates an inventive deflection pulley arrangement 25 in an enlarged perspective view.
  • the guide roller 15 is provided as a cylindrical roller, the lateral surface 35 is profiled with extending grooves 37 in the circumferential direction.
  • the deflection roller 15 has in its center a recess 33 in which it (not shown) via a bearing can be rotatably held.
  • the support means 7 is shown in the example shown as a belt 27.
  • a plurality of wires 29 and wire mesh are provided, which cause the actual load-bearing property of the support means 7.
  • the wires 29 are embedded in a plastic sheath 31.
  • a front surface 39 of the belt 27 forms a contact surface with the lateral surface 35 of the guide roller 15 and is accordingly profiled in a complementary manner to this.
  • One of these front surface 39 opposite back surface 41 of the belt is made substantially flat.
  • the housing 17 forms a deflection roller 15 at least partially surrounding part of the Umlenkrollenanssen 25.
  • the housing 17 is substantially semi-cylindrical, that is, has a substantially approximately U-shaped cross-section.
  • the housing 17 is dimensioned and arranged such that at least parts of the deflection roller 15 find space in its inner region.
  • the housing 17 is formed such that the support means 7 unhindered to the guide roller 15 can be out and then away from this again.
  • the housing 17 At its to the support means 7 and to the lateral surface 35 of the guide roller 15 directed towards the inner surface 47, the housing 17 has at least one region which is formed electrically conductive. With this area, a cable 21 is electrically connected, so that this area can be grounded via the cable 21.
  • FIG. 3 an example of a housing 17 for a pulley assembly 25 is shown in a perspective view and two different plan views.
  • the housing 17 consists essentially of a partially cylindrical, a lateral surface of the housing 17 forming part 43 and two adjacent to axial edges of this part 43 and end faces forming parts 45 in which a semicircular recess 49 is centrally provided.
  • the lateral surface of the housing 17 forming part 43 and the end surfaces forming parts 45 may together form a housing body 46, which may be made of plastic, for example.
  • the end faces forming parts 45 may each be arranged in the axial direction adjacent to end faces of the guide roller 15.
  • the intervening lateral surface forming part 43 of the housing 17 may be disposed adjacent to the lateral surface 35 of the guide roller 15.
  • this layer 51 covers the majority of the interior of the housing 17 directed Surface 47.
  • the electrically conductive layer 51 may be, for example, a metal layer or metallized plastic layer adhered to the inwardly directed surface 47 of the part 43.
  • the electrically conductive layer 51 is constructed such that it also makes electrical contact with this object in the case of mechanical contact with an electrically conductive object which touches it from the inside of the housing 17.
  • the layer 51 should be electrically conductive on its inwardly facing surface and not e.g. be covered with an electrically non-conductive layer.
  • the electrically conductive layer 51 can also be applied directly to the inwardly directed surface 47 of the housing 17, that is, for example vapor-deposited or printed.
  • a small-area and preferably elongated, electrically conductive strip may be provided on the inwardly directed surface 47 of the housing 17.
  • the electrically conductive layer 51 is connected via a connection 53 to the cable 21 and can thus be grounded via this.
  • the breakage detection device 55 serves to be able to detect any breakage of the housing 17, for example by providing one or more distributed conductor tracks (not shown in the figures) on the housing 17 whose mechanical breakage can be detected due to an associated electrical interruption.
  • the breakage detection device 55 has an electrical circuit in which the conductor track (s) is likewise connected via electrical connections 57 to conductors present in the cable 21.
  • these conductors are held separately from a grounding conductor 59 connecting to the ground electrical potential 23, that is, the grounding conductor 59 and the grounding detection means 55
  • connected conductors are accommodated in a common cable 21, but are not electrically connected to each other.
  • An elevator installation 1 is described in which damage to a suspension element 7, in particular damage to a jacket of the suspension element 7, can advantageously be detected.
  • a housing 17, at least partially surrounding the support means 7, is provided on a deflection roller arrangement 25.
  • a directed to the support means 7 surface 47 of the housing 17 is electrically conductive and electrically grounded. If the suspension element 7 or a wire emerging from a damaged suspension element comes into contact with the housing 17, an electrical ground fault results. This ground fault can be detected by monitoring a current flowing through the wires of the suspension element by means of a safety monitoring unit 19 and thus deducing the damage to the suspension element 7.

Claims (13)

  1. Installation d'ascenseur (1) comportant : un élément de suspension (7) ; un composant d'ascenseur déplaçable (4) maintenu au moyen de l'élément de suspension (7) ; un boîtier (17) entourant au moins en partie l'élément de suspension (7), le boîtier (17) étant disposé et conçu de sorte que l'élément de suspension (7) puisse se déplacer par rapport au boîtier (17), une surface (47) du boîtier (17) orientée vers l'élément de suspension (7) étant conçue de manière électroconductrice et étant électriquement mise à terre, caractérisée en ce que le boîtier (17) comporte un corps de boîtier (46) en plastique ainsi qu'une couche électroconductrice (51) disposée sur la surface (47) orientée vers l'élément de suspension (7).
  2. Installation d'ascenseur selon la revendication 1, comportant en outre une poulie de renvoi (13, 15), l'élément de suspension (7) maintenant le composant d'ascenseur déplaçable (4) en l'enroulant au moins en partie autour du rouleau de renvoi (13, 15), le boîtier (17) entourant la poulie de renvoi (13, 15) au moins en partie dans une zone dans laquelle l'élément de suspension (7) s'enroule autour du rouleau de renvoi (13, 15) et le boîtier (17) entourant la poulie de renvoi (13, 15) à une distance de l'élément de suspension (7).
  3. Installation d'ascenseur selon l'une des revendications précédentes, dans laquelle la surface (47) du boîtier (17) orientée vers l'élément de suspension (7) est disposée en regard d'une surface arrière (41) de l'élément de suspension (7), la surface arrière (41) de l'élément de suspension (7) étant disposée de manière opposée à une surface latérale frontale (39), grâce à laquelle l'élément de suspension (7) est appliqué par zones à une poulie de renvoi (13, 15) et/ou à une poulie de motrice (11).
  4. Installation d'ascenseur selon l'une des revendications précédentes, dans laquelle le boîtier (17) comporte un corps de boîtier (46) en plastique et une piste conductrice électroconductrice disposée sur la surface (47) orientée vers l'élément de suspension (7).
  5. Installation d'ascenseur selon l'une des revendications précédentes, dans laquelle la surface électroconductrice (47) du boîtier (17) est mise à la terre au moyen d'un câble (21) fixé au boîtier (17).
  6. Installation d'ascenseur selon l'une des revendications précédentes, dans laquelle l'élément de suspension (7) comporte un ou plusieurs fils électroconducteurs gainés (29) et dans lequel l'installation d'ascenseur (1) comporte une unité de surveillance de sécurité (19), laquelle unité de surveillance de sécurité applique une tension électrique aux fils (29) de l'élément de suspension (7) et est conçue pour détecter les changements des propriétés d'un courant électrique traversant les fils, en particulier un défaut de mise à la terre de ces fils (29).
  7. Installation d'ascenseur selon l'une des revendications précédentes, dans laquelle le boîtier (17) est fixé au composant d'ascenseur déplaçable (4).
  8. Ensemble de poulie de renvoi (25) d'une installation d'ascenseur (1) comportant : une poulie de renvoi (13, 15) ; un boîtier (17), la poulie de renvoi (13, 15) étant montée en rotation par rapport au boîtier (17), le boîtier (17) entourant la poulie de renvoi (13, 15) au moins par zones et de manière adjacente à une surface (35) de la poulie de renvoi (13, 15), une surface (47) du boîtier (17) orientée vers la poulie de renvoi (13, 15) étant conçue de manière électoconductrice et reliée à une borne électrique (53) pour la liaison électrique à une mise à la terre (23), caractérisé en ce que le boîtier (17) comporte un corps de boîtier (46) en plastique et une couche électroconductrice (51), en particulier sous la forme d'un film électroconducteur, disposée sur la surface (47) orientée vers la poulie de renvoi (13, 15).
  9. Ensemble de poulie de renvoi selon la revendication 8, dans laquelle la surface (47) orientée vers la poulie de renvoi (13, 15) du boîtier (17) ((est disposée en regard d'une surface d'enveloppe (35) de la poulie de renvoi (13, 15).
  10. Ensemble de poulie de renvoi selon l'une des revendications précédentes 8 à 9, dans lequel le boîtier (17) comporte un corps de boîtier (46) en plastique et une piste conductrice électroconductrice disposée sur la surface (47) orientée vers la poulie de renvoi (13, 15).
  11. Ensemble de poulie de renvoi selon l'une des revendications précédentes 8 à 10, comportant en outre un câble (21) qui est relié à la borne électrique (53) du boîtier (17) pour la liaison électrique à une mise à la terre (23).
  12. Ensemble de poulie de renvoi selon l'une des revendications précédentes 8 à 11, comportant en outre un dispositif de détection de rupture (55) comportant au moins une piste électroconductrice s'étendant le long du boîtier (17).
  13. Installation d'ascenseur selon la revendication 1, comportant en outre une poulie de renvoi (13, 15), l'élément de suspension (7) maintenant le composant d'ascenseur déplaçable (4) en l'enroulant au moins en partie autour du rouleau de renvoi (13, 15), le boîtier (17) entourant la poulie de renvoi (13, 15) au moins en partie dans une zone dans laquelle l'élément de suspension (7) s'enroule autour du rouleau de renvoi (13, 15) et le boîtier (17) entourant la poulie de renvoi (13, 15) à une distance de l'élément de suspension (7), la surface (47) du boîtier (17) orientée vers l'élément de suspension (7) étant disposée en regard d'une surface arrière (41) de l'élément de suspension (7), la surface arrière (41) de l'élément de suspension (7) étant disposée de manière opposée à une surface frontale (39), grâce à laquelle l'élément de suspension (7) est appliqué par zones à une poulie de renvoi (13, 15) et/ou à une poulie de motrice (11), la surface électroconductrice (47) du boîtier (17) étant mise à la terre au moyen d'un câble (21) fixé au boîtier (17), et l'élément de suspension (7) comportant un ou plusieurs fils électroconducteurs gainés (29), et l'installation d'ascenseur (1) comportant une unité de surveillance de sécurité (19), laquelle unité de surveillance de sécurité applique une tension électrique aux fils (29) de l'élément de suspension (7) et est conçue pour détecter des changements de propriétés d'un courant électrique conduit à travers les fils, en particulier un défaut de mise à la terre de ces fils (29).
EP17711243.0A 2016-03-23 2017-03-22 Installation d'ascenseur avec un élément de suspension entouré en partie d'un boîtier électroconducteur, en particulier sur un ensemble poulie de renvoi Active EP3433198B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17711243T PL3433198T3 (pl) 2016-03-23 2017-03-22 Instalacja dźwigowa z otoczonym częściowo elektroprzewodzącą obudową środkiem nośnym, zwłaszcza na układzie rolek zwrotnych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16161847 2016-03-23
PCT/EP2017/056842 WO2017162749A1 (fr) 2016-03-23 2017-03-22 Installation d'ascenseur dotée d'un élément de suspension entouré en partie d'un boîtier électroconducteur, en particulier sur un ensemble poulie de renvoi

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EP3433198A1 EP3433198A1 (fr) 2019-01-30
EP3433198B1 true EP3433198B1 (fr) 2019-12-04

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US (1) US11130656B2 (fr)
EP (1) EP3433198B1 (fr)
CN (1) CN109071173B (fr)
ES (1) ES2773993T3 (fr)
PL (1) PL3433198T3 (fr)
WO (1) WO2017162749A1 (fr)

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US10941020B2 (en) 2018-01-30 2021-03-09 Otis Elevator Company Deflector sheave bracket for offset bedplate
DE102019201783A1 (de) * 2019-02-12 2020-08-13 Thyssenkrupp Ag Aufzuganlage mit Kabinenerdung
CN111940103A (zh) * 2020-08-03 2020-11-17 陈以贺 一种建筑用水泥板的水泥粉碎装置

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US6633159B1 (en) 1999-03-29 2003-10-14 Otis Elevator Company Method and apparatus for magnetic detection of degradation of jacketed elevator rope
FI109897B (fi) 2001-03-19 2002-10-31 Kone Corp Hissi ja hissin vetopyörä
KR100406871B1 (en) 2003-01-11 2003-12-03 Jeong Du Choi Device for equalizing rope tension of elevator
ATE507180T1 (de) 2004-03-16 2011-05-15 Otis Elevator Co Strategien zur zuführung von elektrischen signalen zur überwachung eines zustands eines aufzugslasttragglieds
ATE485234T1 (de) 2004-03-16 2010-11-15 Otis Elevator Co Erfassung von verschleiss und versagen eines aufzuglasttragglieds
MY154186A (en) * 2008-11-19 2015-05-15 Inventio Ag Supporting belt
RU2485041C2 (ru) * 2009-02-12 2013-06-20 Отис Элевэйтор Компани Контролирующее устройство для контроля лифтового тягового элемента
WO2011085885A2 (fr) * 2009-12-21 2011-07-21 Inventio Ag Surveillance d'un moyen de support et d'entraînement d'un système d'ascenseur
CN102448864B (zh) 2010-06-16 2014-07-02 Natac株式会社 升降机用钢缆破损监视方法及升降机用钢缆破损监视装置
US9599582B2 (en) 2010-09-01 2017-03-21 Otis Elevator Company Simplified resistance based belt inspection
WO2014001372A1 (fr) * 2012-06-29 2014-01-03 Inventio Ag Installation d'ascenseur
WO2014191374A1 (fr) * 2013-05-28 2014-12-04 Inventio Ag Système d'ascenseur
DE202015104475U1 (de) 2015-08-24 2015-09-28 Srh Aufzüge Gmbh Spanneinrichtung für Geschwindigkeitsbegrenzer für Aufzug mit vertikaler Führung

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Publication number Publication date
CN109071173A (zh) 2018-12-21
EP3433198A1 (fr) 2019-01-30
PL3433198T3 (pl) 2020-06-01
CN109071173B (zh) 2020-10-02
US20200307958A1 (en) 2020-10-01
US11130656B2 (en) 2021-09-28
ES2773993T3 (es) 2020-07-16
WO2017162749A1 (fr) 2017-09-28

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