EP3953286B1 - Seitenüberwachungseinrichtung für eine personentransportanlage - Google Patents

Seitenüberwachungseinrichtung für eine personentransportanlage Download PDF

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Publication number
EP3953286B1
EP3953286B1 EP20714251.4A EP20714251A EP3953286B1 EP 3953286 B1 EP3953286 B1 EP 3953286B1 EP 20714251 A EP20714251 A EP 20714251A EP 3953286 B1 EP3953286 B1 EP 3953286B1
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EP
European Patent Office
Prior art keywords
belt
monitoring device
side monitoring
transport system
passenger transport
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.)
Active
Application number
EP20714251.4A
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German (de)
English (en)
French (fr)
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EP3953286A1 (de
Inventor
Csaba BOROS
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Inventio AG
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Inventio AG
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Publication of EP3953286A1 publication Critical patent/EP3953286A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00—Control of escalators or moving walkways
    • B66B25/006—Monitoring for maintenance or repair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00—Safety devices of escalators or moving walkways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00—Safety devices of escalators or moving walkways
    • B66B29/02—Safety devices of escalators or moving walkways responsive to, or preventing, jamming by foreign objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00—Safety devices of escalators or moving walkways
    • B66B29/02—Safety devices of escalators or moving walkways responsive to, or preventing, jamming by foreign objects
    • B66B29/04—Safety devices of escalators or moving walkways responsive to, or preventing, jamming by foreign objects for balustrades or handrails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B21/00—Kinds or types of escalators or moving walkways
    • B66B21/02—Escalators
    • B66B21/04—Escalators linear type

Definitions

  • the present invention relates to a side monitoring device for a passenger transport system such as an escalator or a moving walk.
  • Passenger transport systems in the form of escalators or moving walks are used to transport people within buildings or structures using a conveyor belt along inclined or horizontal travel paths.
  • the conveyor belt runs in a transport area of the passenger transport system and has several tread units arranged one behind the other and coupled to one another, which are usually referred to as steps in the case of escalators and as pallets in the case of moving walks.
  • base plates are usually provided on both opposite sides next to the transport area.
  • the skirting boards are sometimes also referred to as skirting boards.
  • the base plates are arranged in a stationary manner on the passenger transport system and usually extend from a position in which they are located vertically next to the tread units to a height slightly, i.e. a few centimeters or a few decimeters, above a level in which the tread surfaces of the Kick units run.
  • base plates are often designed as simple, flat or locally bent metal plates.
  • Balustrades usually extend next to and/or above the base plates in order to limit the transport area laterally, even at heights of up to 1 m, for example.
  • a handrail can be held and guided on a balustrade.
  • a small gap is provided between a surface of a base plate facing the transport area and an opposite lateral edge of the transport area or the step units located there.
  • the gap measures normally a few millimeters, for example between 1 mm and 3 mm.
  • the gap usually runs in a vertical plane parallel to the transport area.
  • the JP 2009 190863 A discloses a monitoring of displacements of base plate sections by means of switches arranged behind the base plate. If a base plate section is displaced from the tread units by jammed objects, the switches are actuated by the deformation of deformation strips attached to the joints of the base plate sections.
  • a disadvantage of this solution is the presence of open joints between the base plate sections, which can lead to injuries, and the large number of switches required, which are expensive and lead to an increased susceptibility to failure of the entire safety device.
  • a side monitoring device for a people-moving system with the aid of which there is a risk of injury or damage from entrapment in the side running next to step units Gap can be reduced, which is technically relatively simple and / or which is largely insensitive, for example, to dirt or mechanical overload.
  • a passenger transport system with such a side monitoring device.
  • a side monitoring device for a passenger transport system is proposed.
  • the side monitoring device is configured to monitor the application of a force to a base plate of the passenger transport system across a gap formed between a conveyor belt of the passenger transport system and the base plate.
  • the side monitoring device has a holder, at least one elongate band, and a force sensor.
  • the holder is configured for installation of the side monitoring device in a base plate area of the passenger transport system next to a transport area in which several consecutively coupled tread units of the conveyor belt are moved along a travel path during operation of the passenger transport system.
  • the band is held in an operative connection on the holder and extends parallel to at least a partial area of the travel path.
  • the force sensor is operatively connected to the strap and configured to detect a force exerted by the strap on the mount in a displacement direction parallel to the travel path.
  • the side monitoring device also has a support device which is held stationary in the base area after installation and is arranged on a side of the belt opposite the transport area, the support device supporting the belt against movement directed laterally away from the transport area.
  • a support device can be present on the side monitoring device, which supports the at least one belt of the side monitoring device from a rear side, ie the side opposite the transport area.
  • the support device can thereby prevent that the belt, when it is subjected to a force from the transport area, moves excessively to the side of the transport area Transport area moved away.
  • a strength and/or rigidity of the support device can be significantly greater than that of the band of the side monitoring device.
  • the support device can, for example, extend as a type of sheet metal along an entire length or at least along a major part of the band.
  • the supporting device can be constructed and/or installed similarly to a conventional base plate.
  • a passenger transport system which has a plurality of step units arranged one behind the other and coupled to one another and displaceable within a transport area along a travel path, and a side monitoring device according to an embodiment of the first aspect of the invention.
  • the holder for the side monitoring device is installed in a base plate area next to the transport area, and the band of the side monitoring device extends parallel to at least a partial area of the travel path.
  • the support device is held stationary in the base area and is arranged on a side of the belt opposite the transport area. In this case, the support device supports the belt against a movement directed laterally away from the transport area.
  • Embodiments of the side monitoring device presented here can be designed to detect when, for example, a user or his or her piece of clothing bridges the gap between the conveyor belt and the base plate of a passenger transport system and a force is exerted towards the base plate.
  • the force can initially act predominantly orthogonally towards the base plate, that is to say transversely to a travel path along which the conveyor belt of the passenger transport system moves.
  • the pressure exerted on the user or his clothing towards the base plate generates a force in a direction of displacement parallel to the travel path. This force acting in the displacement direction can be used as an indicator that the gap next to the conveyor belt has been bridged by the user or his clothing and a potentially dangerous situation has therefore occurred.
  • the side monitoring device has at least one holder, at least one elongate band and at least one force sensor.
  • the side monitoring device can be installed in a so-called base plate area next to the transport area of the people transport system.
  • the holder can be fixed to a component, in particular a load-bearing component, of the passenger transport system using a screw connection or another fastening technique.
  • the holder can be designed in such a way that the entire lateral monitoring device extends laterally next to the transport area and in the direction of extension along the transport area or at least a part of the transport area.
  • the holder can also be designed in such a way that the side monitoring device or at least its at least one band is located laterally next to and vertically just above the tread units moving along the transport area.
  • the at least one band can extend in the extension direction along the transport area or at least a part of the transport area.
  • the strip should have an elongated shape, ie have a length that is significantly greater than its width and thickness.
  • the length of the belt can correspond to the length of the transport area or at least a part of the transport area, for example at least 50% of the length of the transport area.
  • the width of the band can correspond to a height of a typical base plate or be smaller, preferably even significantly smaller than this.
  • the width of the band can be less than 15 cm, preferably less than 10 cm or 5 cm, and more preferably less than 3 cm.
  • the thickness of the tape can be significantly less than that Width of the band, that is, for example, less than 30%, preferably less than 10% of the width of the band.
  • the band can be subjected to tensile loads and can be bent or flexible transversely to a tensile direction.
  • the band can have a certain elasticity.
  • the extensibility and elasticity under tensile loading should not be so high that forces acting in the direction of displacement lead predominantly to an elongation of the ligament without causing a significant transmission of force through the elongating ligament to other areas of the ligament.
  • the stretchability of the band should be sufficiently low to be able to ensure the desired transmission of force to the force sensor that is operatively connected to the band.
  • the band is held in operative connection on the holder.
  • a weight and/or a force acting on the belt can be diverted to the holder and via this to the passenger transport system.
  • the band can be mechanically connected directly to the holder.
  • the strap may be connected to the bracket via other intervening components.
  • the band is held by the holder in such a way that it extends largely parallel to at least a partial area of the travel path of the passenger transport system.
  • the band can run at least parallel to the partial area of the travel path where the users step onto the tread units and can be transported with them.
  • the belt can only extend along an inclined partial area of the travel path of a passenger transport system designed as an escalator, but not necessarily along the horizontally running entry and/or exit areas.
  • the belt should preferably be arranged in such a way that one of the surfaces of the belt faces the transport area and is exposed to it, so that this surface of the belt forms a kind of lateral delimitation of the transport area.
  • the band and the force sensor are kept in operative connection with one another.
  • the force sensor should be mechanically connected directly or indirectly to the band in such a way that a force acting on the band in the direction of displacement can be at least partially transferred to the force sensor and can thus be detected by it.
  • the side monitoring device can be used to detect, for example, when a user's shoe protrudes beyond the gap next to a stepping unit and contacts the strap of the side monitoring device located there. Since the shoe and the user are transported along the travel path by the treadle unit, a force is exerted on the belt in the direction of displacement parallel to the travel path as a result of this mechanical contact. This force can be detected by the force sensor. Suitable measures can then be initiated on the basis of such a detection. For example, operation of the passenger transport system can be temporarily stopped, a displacement speed of its conveyor belt can be reduced, or other measures can be taken to prevent the shoe from getting caught or the user being endangered in some other way.
  • the band can be held in such a way that it is displaceable in the direction of displacement over a displacement distance.
  • the band can be held directly or indirectly by the holder in such a way that it can be displaced without damage at least over a certain displacement distance in the direction of displacement when a force is exerted on the band in the direction of displacement.
  • the band can be displaceable along its direction of extension at least over the displacement distance, ie within a displacement range. While the band is only displaced within the displacement distance, preferably only a small force counteracting the displacement can be exerted on the band.
  • the tape can be moved within a range predetermined by the displacement distance with small forces of, for example, less than 150 N, preferably less than 50 N or less than 20 N.
  • the counteracting force can be constant over the range of displacement or can gradually increase with increasing displacement.
  • the belt of the side monitoring device can move in the direction of displacement at least within the predetermined displacement distance together with the shoe moved further by the treadle unit. Any friction that would otherwise occur between the moving shoe and a stationary base plate can thus be avoided. In addition, this may prevent the shoe or other object from being deformed by friction with the base plate and then getting caught in the gap between the tread unit and the base plate. While the band is displaced with the shoe largely without force within its displacement distance, the user possibly has sufficient time to pull the shoe back onto the stepping unit. If necessary, a corresponding warning can be issued when the tape of the side monitoring device is touched.
  • connection of the band to the holder on the one hand and to the force sensor on the other hand can be designed such that only when the band is displaced beyond the displacement distance is a force required to activate the force sensor exerted by the band on the force sensor.
  • the displacement distance can be, for example, at least 50 cm, at least 1 m or at least 2 m.
  • the strap when touched by an object carried by a treadle unit, the strap can be moved a substantial displacement distance, allowing a user sufficient time, if necessary, to pull the object off the strap and back onto the treadle units.
  • the holder can be mounted on the support device.
  • the holder can be mechanically connected to load-bearing components of the passenger transport system via the support device.
  • the support device can have guide structures on its surface directed towards the strip, which are configured to guide the strip vertically and transversely to the direction of displacement when it is displaced in the direction of displacement.
  • the guide structures can be designed as one or more elongate indentations or grooves into which the tape can be at least partially accommodated.
  • the guide structures can also be designed as undercut grooves, in which case the strip can be introduced into such an undercut groove with a partial area designed to complement the cross section of the undercut grooves and can thus be held in the groove with a positive fit.
  • the band can optionally be displaced along the groove, but cannot detach from the groove transversely to the surface of the support device.
  • the guide structures can be provided as elongated webs on the surface of the support device and extend in the direction of displacement.
  • the side monitor may further include a slide member interposed between a surface of the support and an opposite surface of the belt.
  • a surface of the sliding element that contacts the surface of the belt can have a lower coefficient of sliding friction compared to a surface of the support device that contacts the surface of the belt.
  • a sliding element can be provided between said surface of the support device and the opposite surface of the belt, with the aid of which friction, which occurs when the belt is displaced relative to the support device and thereby contacts the support device, can be reduced.
  • the sliding element can be made of a solid material, a pasty material or a liquid.
  • the sliding element can be designed as a solid sliding element.
  • a solid sliding element can be designed, for example, in the form of a component made of plastic or provided with a plastic surface.
  • materials with a very low coefficient of friction in relation to metal surfaces, such as those formed on the support device typically made of metal, can be used as plastics.
  • a sliding element can consist of polytetrafluoroethylene or be coated with polytetrafluoroethylene.
  • the side monitoring device can have a multiplicity of bands which extend parallel to the travel path and parallel to one another vertically next to one another.
  • the side monitoring device can have several bands that run vertically next to each other and are each operatively held on the holder so that they run parallel to one another and vertically one above the other parallel at least to part of the travel path.
  • such belts can form a kind of overall surface that extends vertically laterally next to the transport area of the passenger transport system and at least partially spans a base plate located behind it or a support device located behind it.
  • the page monitor may have several tens, i.e. for example more than 50 or even more than 80, of such bands.
  • Each individual band can have a very small width of a few millimeters, for example.
  • the belts can be arranged adjacent to one another in a vertical direction and each be aligned with one of their main surfaces towards the transport area.
  • Adjacent bands may abut each other at their edges or may be slightly spaced apart.
  • a distance between adjacent bands can be significantly smaller than the width of the bands, i.e. less than 20% of the width of the bands, for example.
  • one of the guide structures can be located between the edges of adjacent bands in order to guide the adjacent bands during their displacement movement.
  • a single broad ribbon is difficult to bend about an axis orthogonal to its major surface.
  • the side monitoring device can also be used in curved areas of the people transport system, i.e. for example there where a horizontally running boarding area in a sloping transport area of an escalator, can be used.
  • Each of the large number of narrow bands only needs to be slightly bent, with the individual bands being able to shift relative to one another along the direction in which they extend.
  • the force sensor can be a strain gauge.
  • a strain gauge can be a simple construction and therefore inexpensive to manufacture and robust component.
  • the strain gauge can measure a force acting on it, in particular in the form of a tensile force.
  • an electrical property such as an electrical resistance of the strain gauge changes.
  • the strain gauge can have two electrical connections via which an electrical voltage can be applied and the changing electrical property can thus be measured.
  • One end of a band can be mechanically connected to the strain gauge and connected via the strain gauge to a stationary area of the side monitoring device, such as its mount. In the event that a large number of bands are provided on the side monitoring device, an associated strain gauge can be provided for each of the bands.
  • the band can be formed with a plastic band.
  • the band can be partially or fully made of plastic.
  • the band can be provided as an extruded plastic part.
  • Such belts can be manufactured very inexpensively and/or be sufficiently robust for the use mentioned herein.
  • the band can be formed with a metal band, in particular as a steel band.
  • the strip can be made partially or entirely of metal, in particular steel.
  • metal bands can also be provided relatively cheaply and/or be sufficiently robust for the purpose mentioned here.
  • the people transportation system may comprise a safety chain circuit with a plurality of safety switches connected in series.
  • the force sensor can be designed as part of the safety chain circuit to open a switching state and thus interrupt the safety chain circuit when a force exerted by the strap on the holder is detected, which force exceeds a minimum force value.
  • a safe operating state of the passenger transport system is typically monitored with the aid of a number of safety switches or safety sensors that may have different technical designs and are used in different positions.
  • the safety switches or safety sensors are designed in such a way that they only allow current to flow when a safe operating state is detected. If the operating state is unsafe, the system switches to an electrically isolating state.
  • the safety switches or safety sensors are connected to one another in series and in this way form a safety chain. The safety chain is only closed when all of its safety switches are in a closed or electrically conductive state. The safety chain is broken as soon as one of the components mentioned is open, i.e. electrically isolating.
  • the force sensor of the side monitoring device described herein can be used as a component of such a safety chain. But he can The force sensor itself or a logic reading this out can be configured to open a switching state, ie to go into an electrically insulating state, as soon as the force sensor detects a force that exceeds a predetermined minimum force value.
  • a value can be set as the minimum force value, up to which forces acting on the belt of the side monitoring device in the direction of displacement should be tolerated and measures to ensure safe operation of the passenger transport system should be initiated if this is exceeded.
  • Such a minimum force value can be in the range of a few Newtons, for example between 2 N and 200 N, preferably between 5 N and 100 N.
  • the people transport system can also have a measuring device which is configured to generate a stop signal when a force exerted by the belt on the force sensor and exceeding a minimum force value is detected , due to which operation of the passenger transport system can be stopped.
  • the force sensor designed as a strain gauge acts as a passive component whose electrical properties change when force is applied.
  • the strain gauge does not actively emit a signal. Instead, its electrical properties, such as its electrical resistance, must be read out by the measuring device.
  • the measuring device can, for example, be part of a controller that controls the passenger transport system. Alternatively, the measuring device can be designed as a separate device. The measuring device can monitor the electrical properties of the strain gauge permanently or at short time intervals and generate a stop signal as soon as it is detected that the force acting on the strain gauge exceeds the predefined minimum force value.
  • the stop signal can directly trigger a stopping of the passenger transport system.
  • the stop signal can be used to switch the switching state of a safety switch integrated in a safety chain to a non-conducting state switch and in this way to interrupt the safety chain, whereupon the control of the passenger transport system typically temporarily stops its operation.
  • FIG 1 shows a passenger transport system 1 in the form of an escalator 3 according to an embodiment of the present invention.
  • the passenger transport system 1 comprises a transport belt 5, in which a plurality of tread units 7 are arranged one behind the other in the form of steps along a travel path 25 and are coupled to one another.
  • a base plate 9 shown only with a broken line for reasons of clarity
  • a gap 11 runs between one of the base plates 9 and an opposite edge of the conveyor belt 5.
  • the passenger transport system 1 also has a side monitoring device 13 according to an embodiment of the present invention.
  • the side monitoring device 13 includes a holder 15, an elongate band 19 and a force sensor 21.
  • the side monitoring device 13 is designed to monitor the application of a force to the base plate 9 of the passenger transport system 1 across the gap 11.
  • the side monitoring device 13 is arranged in the base plate area 10 for this purpose, ie laterally next to the transport area 6 and thus laterally closely adjacent to the transport belt 5 or the gap 11 .
  • the holder 15 of the side monitoring device 13 is configured to install the side monitoring device 13 in the base plate area 10 and thus to mechanically connect it firmly to the passenger transport system 1 .
  • a wide variety of techniques and components can be used for this purpose, which are not shown in detail in the figures.
  • a deflection roller 17 is shown merely as an example as a possible component of such a holder 15 .
  • the band 19 is operatively connected to the holder 15 and is thus held by it.
  • the band 19 and the holder 15 are configured in such a way that the band 19 extends parallel to at least a partial area of the travel path 25 .
  • the band 19 runs between the two deflection rollers 17. At least part of the band 19 is positioned in front of the base plate 9, ie it is located between the base plate 9 and the transport area 6.
  • end regions of the belt 19 are guided around the deflection rollers 17 and are thereby deflected by 180°.
  • the end regions of the band 19 are each operatively connected to springs 23 and are mechanically held under tension by these springs 23 . Due to the elasticity of these springs 23, the band 19 is held in such a way that it can be displaced in a displacement direction 27 parallel to the travel path 25.
  • a dimensioning and elasticity of the springs 23 is dimensioned in such a way that the band 19 can be displaced within a displacement distance 37 .
  • the force sensor 21 is arranged in the example shown between one of the springs 23 and the associated end region of the band 19 .
  • the force sensor 21 is configured and mechanically connected to the band 19 on the one hand and to the spring 23 on the other hand in such a way that forces exerted on the band 19 in the displacement direction 27 can be detected with its help.
  • the force sensor 21 can be designed with a simple, robust and cost-effective strain gauge 33 .
  • figure 4 illustrates, by means of a cross-sectional view, a possibility of how the belt 19 can be supported against a movement directed laterally away from the transport area 6 by means of a supporting device 29 .
  • the support device 29 in the form of a suitably bent metal sheet is mechanically operatively connected to the holder 15 and extends on a side of the belt 19 opposite the transport area 6.
  • a flat sliding element 31 is interposed between the belt 19 and the support device 29 .
  • the sliding element 31 can be attached to the support device 29 .
  • the sliding element 31 consists of a material such as a plastic, in particular polytetrafluoroethylene, which has a lower coefficient of sliding friction when a surface 41 of the sliding element 31 contacts a surface 43 of the belt 19 than a surface 39 of the support device 29. Accordingly, during a movement of the band 19 relative to of the support device 29 with the aid of the sliding element 31 any friction that occurs can be substantially reduced.
  • the side monitoring device 13 comprises not just a single band 19, but rather a plurality of separate bands 19.
  • Each of the bands 19 runs parallel to the travel path 25 (see figure 1 ) and faces towards it with one of its main surfaces.
  • the bands 19 are arranged parallel to one another and next to one another in a vertical direction.
  • An associated force sensor 21 in the form of a strain gauge 33 is attached to a respective end area of each of the bands 19 , the respective force sensor 21 interacting on an opposite side with a spring 23 associated with it.
  • Guide structures 35 are provided on the support device 29 between vertically adjacent bands 19 and guide the bands 19 vertically and transversely to the direction of displacement 27 when they are displaced in the direction of displacement 27 .
  • Flat sliding elements 31 can also be provided between the bands 19 and the support device 29 in this exemplary embodiment.
  • the force sensors 21 are monitored and evaluated with the aid of a measuring device 49.
  • the measuring device 49 is part of a controller 53 or is connected to this controller 53.
  • the controller 53 serves to control a drive 51 of the passenger transport system 1 .
  • the controller 53 monitors a safety chain circuit 45 in which several safety switches 47 are connected to one another in series. Each of the safety switches 47 can monitor a safety-relevant function of the passenger transport system 1 and switch to an open, non-conducting state as soon as a safety-endangering situation has been detected.
  • the force sensor 21 can be part of this safety chain circuit 45 .
  • the force sensor or an evaluation of its properties by the measuring device 49 can be designed in such a way that in the event that the force sensor 21 measures a force exerted by the band 19 that exceeds a minimum force value, a switching state is opened and thus the safety chain circuit 45 is interrupted.
  • the force sensor 21 can be designed as a strain gauge 33 .
  • the measuring device 49 can generate a stop signal, on the basis of which the operation of the passenger transport system 1 can be temporarily stopped by the controller 53 .
  • the side monitoring device 13 With the help of embodiments of the side monitoring device 13 described herein, it can be detected during the operation of the passenger transport system 1 when an object moved by the conveyor belt 5, such as a user's shoe, bridges the gap 11 or enters it and then contacts the belt 19 of the side monitoring device 13. Due to the fact that the object is not only pressed orthogonally onto the belt 19, but is also moved in the direction of displacement 27, a force is exerted on the belt 19 in the direction of displacement 27, which can be detected by the force sensor 21. If the measured force exceeds the specified minimum force value, this can be taken into account by the controller of the passenger transport system 1 and, for example, the operation of the passenger transport system 1 can be temporarily interrupted by the controller 53 stopping the drive 51 .
  • an object moved by the conveyor belt 5, such as a user's shoe bridges the gap 11 or enters it and then contacts the belt 19 of the side monitoring device 13. Due to the fact that the object is not only pressed orthogonally onto the belt 19, but is also moved in the direction of displacement 27, a force
  • embodiments of the side monitor 13 described herein may be described as a passive safety device.
  • the belt 19 of the side monitoring device 13, which is preferably held movably can begin to move, for example until a safety switch 47 switches off the passenger transport system 1.
  • a safety switch 47 switches off the passenger transport system 1.
  • this can cause the band 19 or the most heavily loaded band 19 of a plurality of bands 19 to tear, with a band 19 being relatively easy to replace.
  • the side monitor 13 can also act as an active device. Approximately 80-100 special bands can be provided on it, for example, in order to be able to measure mechanical stresses by means of force sensors 21. This can make it possible to check the mechanical stresses of these bands 19 (at a very low level in order to avoid a short service life of the force sensors 21) or to measure local higher stresses in the system (for example due to a collision of tread units 7 with the base plate 9) .
  • Bands 19 are preferred because they can be easily replaced in the event of a tear or when the bands 19 are damaged.
  • Strain gauges 33 which are available very cheaply, can preferably be used as force sensors 21.
  • the thickness of a panel-like side monitoring device 13 can be kept small, for example less than 20 mm, so that the side monitoring device 13 can be implemented relatively easily in existing passenger transport systems 1 .
  • a possible length of the permissible displacement distance 37 in the displacement direction 27 in which the tread units 7 move can be, for example, about ⁇ 0.8 m (which is practically the maximum horizontal length in a lower or upper part corresponds to an escalator).
  • This part of the base plate 9 is satisfactorily protected by a safety brush (very narrow gap between an upper surface of tread units 7 and the brush).
  • the consumable tape 19 can be a relatively inexpensive extruded plastic part.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Refuse Collection And Transfer (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
EP20714251.4A 2019-04-12 2020-04-02 Seitenüberwachungseinrichtung für eine personentransportanlage Active EP3953286B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19168965 2019-04-12
PCT/EP2020/059386 WO2020207895A1 (de) 2019-04-12 2020-04-02 Seitenüberwachungseinrichtung für eine personentransportanlage

Publications (2)

Publication Number Publication Date
EP3953286A1 EP3953286A1 (de) 2022-02-16
EP3953286B1 true EP3953286B1 (de) 2023-05-31

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US (1) US11661317B2 (zh)
EP (1) EP3953286B1 (zh)
AU (1) AU2020272919B2 (zh)
ES (1) ES2949207T3 (zh)
SG (1) SG11202108589UA (zh)
TW (1) TW202104060A (zh)
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US4669597A (en) 1985-11-04 1987-06-02 Otis Elevator Company Escalator skirt panel
JPH074475U (ja) * 1993-06-24 1995-01-24 オーチス エレベータ カンパニー エスカレーターのステップ
US6601688B1 (en) * 1999-10-21 2003-08-05 Otis Elevator Company Passenger conveyor gap monitoring device
JP2001247286A (ja) 2000-03-06 2001-09-11 Toshiba Elevator Co Ltd エスカレータの挟み込み防止装置
JP5257867B2 (ja) 2008-02-15 2013-08-07 東芝エレベータ株式会社 乗客コンベア
US8636134B2 (en) 2008-12-22 2014-01-28 Otis Elevator Company Moving skirt mechanism for chain driven passenger conveyors
CN102365226B (zh) * 2009-04-03 2014-03-05 奥蒂斯电梯公司 用于梯级法兰盖的可调支架
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WO2020207895A1 (de) 2020-10-15
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US11661317B2 (en) 2023-05-30
TW202104060A (zh) 2021-02-01
AU2020272919A1 (en) 2021-11-11
EP3953286A1 (de) 2022-02-16
US20220144594A1 (en) 2022-05-12
AU2020272919B2 (en) 2023-07-13
CN113646250A (zh) 2021-11-12

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