Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B29/00—Safety devices of escalators or moving walkways
  • B66B29/005—Applications of security monitors
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B29/00—Safety devices of escalators or moving walkways
• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
  • G08B21/18—Status alarms

Definitions

• the invention relates to a safety device and a method for securing the operation of a passenger conveyor system, such as an escalator or moving walkway, whose stages or its pallets are each coupled to a driving element on a tension member, such as a drive chain.
• DE 196 06 317 A1 discloses a device for monitoring the lifting and / or lowering of individual stages of the step belt of escalators, the steps provided with guide tracks on supporting rollers and are held between provided in the balustrade socket endless drive chains, with at least one provided substantially in the transitional arc from the horizontal in the skew, in particular the drive of the escalator shutdown safety device.
• the safety device includes at least one intermediate or directly resiliently mounted with respect to the stages, standing in operative connection with a turn-off in the direction of the stages of the step band component which is arranged at a predetermined distance to the continuous stages below the step band, wherein the component medium or directly with a provided in the region of the stages, the deflection of the component inducing device cooperates.
• This safety device thus recognizes an unwanted deflection of a step from the intended for her Laufweg.
• the respective sensor used checks for the absence of steps by being aligned with the pin of the step or pallet rollers provided outside the respective drive train.
• JP 2007 076 823 A also shows a safety device in which the axis of the seated rollers of an escalator stage is monitored so that in case of damage to one of these rollers, the operation of the escalator is turned off.
• the entrainment element used here can be formed as a solid or hollow pins respectively as a continuous axis and serve to receive corresponding end portions of the chain pin, whereby the latter are then connected to the respective step or pallet component via the operative connection with the respective driving element.
• securing elements for example in the form of screws and / or locking plates, are used.
• the aim of the subject invention is to provide an improved method for ensuring operational safety of a passenger conveyor system while overcoming the above problems in the prior art.
• the aim of the subject invention is thus to be able to respond to sources of error or damage in the concrete area of a step / pallet connection to a tension member before the damage is reflected by a faulty deflection of a step or pallet noticeable.
• This object is achieved by a method according to claim 1, and by a safety device according to claim 7.
• the basic idea of the invention is to monitor the connecting elements between the tension member and the step or pallet of a passenger conveyor system.
• These fasteners primarily concern a driving element which is the link between the drive chain and the step / pallet.
• driving element chain side to a chain pin and stages, or pallet side coupled via a pallet eye, in which case both the chain pin and the pallet eye belongs to the fasteners.
• a trigger element is arranged on the take-off element, which triggers the alarm state upon detection of a completed predefinable movement of the carrier element from its position securing the connection between the pulling element and the step or if the absence of at least one securing element is detected Passenger conveyor system shut down.
• the alarm condition may further include communicating the alarm by radio or the like to a security or maintenance person. From a movement of the driving element is assumed, if on the one hand, the connection between the driving element and the chain bolt and / or on the other hand solves the connection between the driving element and the pallet eye. The invention thus provides improved security monitoring since a security risk is detected before the step or pallet is removed from its running position.
• the detectable by the trigger element predetermined movement of the driving element may be a relative movement of the driving element relative to the step or pallet.
• the trigger element is arranged at its associated stage / pallet.
• the triggering element can also be arranged stationarily in the transport area or return passage, which considerably reduces the number of triggering elements required for the entire escalator or the moving platform. If the trigger element is to be arranged in the transport area, it is advantageous to accommodate it in the area not visible to the passenger.
• the triggering element is a mechanical button, which is positioned at a predeterminable distance to the respective entrainment, or his predetermined by the circulation of the passenger conveyor track, so that the button detects the movement in question of the entrainment then the driving element on the button meets.
• an additional touch probe system can be arranged.
• a pushbutton can be stationarily arranged in the return run, to which a pulse transmitter element provided at each step or pallet strikes in the form of a contact plate, whereby a frequency signal is emitted when the passenger conveyor runs is generated, which indicates the number of detected stages per unit time depending on the running speed of the passenger conveyor. The absence of a driving element is then detected by deviating from a predetermined frequency.
• the triggering element may also be a non-contact sensor which is aligned with the peripheral surface of the driving element and measures its movement. If this movement exceeds a predetermined set value, an alarm is triggered by the safety device, if necessary the drive of the passenger conveyor system is shut down.
• the object of the invention is also achieved by a safety device for implementing the above-described checking and monitoring method.
• the safety device has at least one triggering element, which is arranged, for example, in the non-visible region of the transport and / or return run of the steps or pallets of the passenger conveyor system, such that the triggering element moves against the steps or pallet during a movement of the respective carrier element or in the absence of at least one fuse element triggers the alarm state.
• a triggering element can also be respectively attached to the individual steps or pallet, whereby a relative movement of the driving element relative to the step or pallet can then be detected.
• the triggering element may be a mechanical button, which is positioned at a predeterminable distance to the entrainment element, wherein the button can shut down the drive of the passenger conveyor system in contact with the entrainment element.
• the probe can advantageously be arranged so that it comes into contact with the free end of the driving element.
• the triggering element may also be a non-contact sensor which measures a relative movement of the driving element and stops the drive of the passenger conveyor system when a predeterminable travel of the driving element is exceeded.
• the respective triggering element is arranged in the non-visible region of the passenger conveyor system.
• each stage or pallet are arranged at predeterminable point of the transport and / or the return run of the tension member two opposing triggering elements between the mutually parallel traction elements.
• the respective deployed triggering element is within, that is arranged between the traction elements (s), and is thus able to monitor the connection given here between the chain pin and the demand differently shaped driving elements.
• FIG. 2 section through a stage, including representation of different
• Figures 3 and 4 section and side view of a pallet strip velvet
• FIG. 1 shows a section through a step 1 in the visible region of the step belt (supply line) of a passenger conveyor system (not shown).
• Two step parts 1 ', 1 can be seen in a mirror-image representation, and a pulling element 2 in the form of a link chain is connected externally to a chain roller 4 via a chain pin 3.
• the chain pin 3 is on the side of the chain roller 4 facing away from the chain roller 4
• Pulling element 2 is connected to a carrier element 5, 6.
• the carrier element 5 (left-hand part of Figure 1) is designed as a pin which engages through the stepped eye 7 of the step 1.
• the pin 5 is connected to the step eye 7 via only indicated securing elements 8. An axial relative movement between the chain pin 3 and the pin 5 is therefore not possible.
• a pin element 18 is provided as the entrainment element, while in the right-hand part of FIG. 2 a continuous axle 19 is indicated as the entrainment element.
• securing elements 20, 21 is the respective driving element 18, 19 via the associated step eye 22, 23 with the driving element 18, 19 in operative connection, so that between the chain pin 24 and the respective driving element 18, 19 no axial relative movement is possible.
• securing means 25, 26 are provided, which are provided in this example as on the peripheral surface of the respective driving element 18, 19 aligned non-contact probe.
• the button detects said movement when a threshold value is exceeded and can thus trigger the alarm. If an axial movement of the driving element to be detected, the triggering element should be arranged at the free end of the chain pin.
• Figures 3 and 4 show a further embodiment in sectional and side view to the arrangement of a safety device 27 can be seen, the Transporttrum 28 for the pallets 29 and the vomauertrum 30 for the pallets 29th
• the safety device 27 is in the non-visible area 31, i. between Transporttrum 28 and scrublauftrum 30, provided and is connected via a holder 32 with a frame part 33 of the passenger conveyor.
• a single safety device 27 in the form of a non-contact button is shown here.
• a shaped safety plate 34 is present, which is connected via a screw 35 on the one hand to the pallet eye 36 and on the other hand with the driving element 37 in operative connection. If, after a repair or maintenance measure this locking plate 34, on which the safety device 27 is aligned, not be reinstalled, the absence of the securing plate 34 is detected during the passage of the return run 30 by the safety device 27 and not shown drive the passenger conveyor is silent set.
• a safety device 43 in the form of a mechanical probe 43 ', which in this example is positioned at a defined distance, approximately 5 mm, behind the free end 44 of the stud piece 42. If after a maintenance or repair work, the backup between the stepped eye 7 and the bolt piece 42 has not been restored, the pin 42 would slip out of its position due to the vibration given in the operating state of the passenger conveyor system and finally come to the button 43 'to the plant , Upon contact of the button 43 'with the end 44 of the pin 42, the drive of the passenger conveyor system, not shown, is immediately stopped via the safety device 43.

Landscapes

• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Escalators And Moving Walkways (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=48522146

Family Applications (1)

Country Status (6)

Families Citing this family (4)

Citations (8)

Family Cites Families (5)

• 2012
  • 2012-07-10 DE DE201210013704 patent/DE102012013704A1/de not_active Withdrawn
• 2013
  • 2013-06-27 IN IN2810KON2014 patent/IN2014KN02810A/en unknown
  • 2013-06-27 EP EP13732485.1A patent/EP2872435A1/de not_active Withdrawn
  • 2013-06-27 WO PCT/EP2013/063533 patent/WO2014009166A1/de not_active Ceased
  • 2013-06-27 CN CN201380036620.4A patent/CN104428236B/zh not_active Expired - Fee Related
• 2014
  • 2014-12-23 US US14/580,487 patent/US9302887B2/en not_active Expired - Fee Related

Patent Citations (8)

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