EP1289871A1 - Safety device for travelators and escalators - Google Patents
Safety device for travelators and escalatorsInfo
- Publication number
- EP1289871A1 EP1289871A1 EP01983255A EP01983255A EP1289871A1 EP 1289871 A1 EP1289871 A1 EP 1289871A1 EP 01983255 A EP01983255 A EP 01983255A EP 01983255 A EP01983255 A EP 01983255A EP 1289871 A1 EP1289871 A1 EP 1289871A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- escalator
- initiator
- evaluation
- control electronics
- pallet
- 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.)
- Granted
Links
- 239000003999 initiator Substances 0.000 claims abstract description 37
- 238000011156 evaluation Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 230000002950 deficient Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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
Definitions
- the invention relates to a device for monitoring the presence of steps or pallets of an escalator or moving walk.
- Escalators and escalators must be equipped in accordance with applicable domestic and foreign safety regulations in such a way that they are automatically shut down as soon as problems arise in the area of critical points.
- a control device for passenger conveyor systems has become known from US Pat. No. 5,526,256.
- a first and a second microcomputer are provided, the first microcomputer being operatively connected via switches to the safety elements responsible for starting the passenger conveyor system. The results are used to commission the passenger conveyor system.
- the second microcomputer monitors the behavior of the safety devices based on their input signals. If one of the microcomputers fails, the passenger conveyor system is not stopped, rather the second microcomputer takes over the function of the first, which can result in considerable risks in the continued operation of the passenger conveyor system, since the error is not remedied but merely relocated.
- a major problem area is the step or pallet belt. If ever break a step or pallet or fall in the return run, so it can happen / that persons are in the visible range of the escalator on it may be harmed if the escalator or moving walkway is not stopped immediately.
- the aim of the subject matter of the invention is to develop a device for monitoring the presence of steps or pallets of an escalator or • escalator in such a way that the absence of steps or pallets is immediately registered, so that the drive is already shut down without the missing or defective part enters the visible area of the escalator or escalator. For this purpose, a new type of evaluation is to be created on the basis of safety-related and standard-compliant requirements.
- a device for monitoring the presence of steps or pallets of an escalator or escalator formed by at least one non-contact initiator, which is operatively connected to an evaluation and control electronics, which are found when missing steps or pallets within the Step or pallet belt stops the drive of the escalator or moving walk.
- This goal is also achieved by a method for monitoring the presence of steps or pallets of an escalator or a moving walk, in that the presence of predeterminable, characteristic and always presentable at a predeterminable point of the step or pallet belt via at least one initiator that is operatively connected to an evaluation and control electronics recurring features are scanned without contact, the recorded parameters are sent in electronic form to the evaluation and control electronics and processed there, in the event of the absence of at least one of the characteristic features via the evaluation and control electronics, the drive of the escalator or moving walk is stopped.
- the subject of the invention now enables the contactless detection of faulty levels or pallets on the basis of characteristic and constantly recurring features. These are available at every level or pallet.
- the step or pallet axis of each step or pallet can be used, for example, as a characteristic feature, which usually cooperates with a roller that rolls on a guide and is therefore always arranged at the same height.
- the initiator (s) are preferably positioned in the area of the scaffold by means of an associated holder and are aligned with the characteristic feature, for example the bolt of the step or pallet rollers provided outside the drive train.
- the initiator (s) are preferably provided in the return run near the deflection area of the step or pallet belt, so that at Detection of a missing step or pallet via the evaluation and control electronics, the drive of the escalator or the moving walkway can be stopped immediately.
- a plurality of processors which control the signals of the initiator (s) and work independently of one another, are provided, which preferably monitor one another.
- the processors are in active connection with safety contacts for the immediate shutdown of the escalator or escalator drive, the processors exchanging status messages of the respective operating state of the initiator (s) on the one hand and of the own state on the other hand within predefinable time intervals.
- the speed profiles to be mastered with the escalator or the moving walkway are stored in the evaluation and control electronics, so that the throughput times which arise due to changing speeds on the initiator (s) are easily recognized by the evaluation and control electronics can be assigned to the respective operating status.
- So-called self-learning programs such as adaptive speed detection, auto-tuning and teach-in processes can be used to set different speeds.
- the step or pallet belt must be operated manually using special switching elements be possible (revision driving mode) so that the safety device can be switched off for this purpose.
- FIG. 1 schematic diagram of an escalator with indicated
- FIG. 2 partial representation of the safety device
- FIG. 1 partial representation of the evaluation and control electronics in connection with the initiators.
- Figure 1 shows an escalator 1 with two deflection areas 2, 3 for the steps 4 of the step belt 5.
- holders 6, 6 ' are provided in the vicinity of the deflection areas 2, 3 and each hold an initiator 7, 7', which is only indicated.
- FIG. 2 shows a partial view of the holder 6.
- a stage 4 can be seen, the drive element 8 articulated on the stage 4 and a step roller 9.
- the holder 6 is fastened in the area of the frame 12.
- the step roller 9 rolling on a guideway 13 always has the same distance for each step 4, so that it is easily possible to align the initiator 7 on the bolt of the step roller 9, which is not further visible here, so that the same is a characteristic, recurring feature of each Level 4 represents.
- Figure 3 shows a schematic diagram of the evaluation and control electronics 1 1, which is operatively connected to two initiators 7, 7 ', which are positioned at a predetermined distance from each other. Also recognizable is a pallet belt 5 'including pallets 4' of an only indicated moving walk. Each pallet 4 'is equipped with a pallet roller 9' which is connected to the respective pallet 4 'via a bolt 15.
- the initiators 7, 7 ' are also provided in the vicinity of the deflection region of the pallets 4', which is not shown in any more detail, and are aligned with the height of the pallet bolt 15, which represents a characteristic and recurring feature.
- the evaluation and control electronics 1 1 contains two microprocessors 16, 17, which are connected to the initiators 7, 7 '.
- the microprocessors 16, 17 are connected to one another via data lines 18, so that mutual monitoring is ensured.
- the microprocessors 16, 17 not only check themselves for locally occurring faults, but also check whether the initiator pulses supplied to the other microprocessor 16, 17 are within the tolerance range.
- Reference numbers 19, 20 on the one hand denote the voltage supply of the so-called safety chain and, on the other hand, the voltage supply of the evaluation and control electronics 1 1 itself.
- the evaluation electronics 11 In the normal case (escalator is running) there is a sequence of pulses (signals), the evaluation electronics 11 also monitoring damage to the initiators 7, 7 'or the lines 29, 30 themselves.
- the signals range between 0 and 1. If one of the signals constantly becomes 0 or 1, it can be assumed that there is damage in the area of an initiator 7, 7 'or a line 29, 30. As a result, the drive is stopped.
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10027490 | 2000-06-02 | ||
DE10027490A DE10027490C2 (en) | 2000-06-02 | 2000-06-02 | Safety device for escalators and moving walks |
PCT/EP2001/004750 WO2001094248A1 (en) | 2000-06-02 | 2001-04-27 | Safety device for travelators and escalators |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1289871A1 true EP1289871A1 (en) | 2003-03-12 |
EP1289871B1 EP1289871B1 (en) | 2004-08-18 |
Family
ID=7644539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01983255A Revoked EP1289871B1 (en) | 2000-06-02 | 2001-04-27 | Safety device for travelators and escalators |
Country Status (6)
Country | Link |
---|---|
US (1) | US6666319B2 (en) |
EP (1) | EP1289871B1 (en) |
CN (1) | CN1269723C (en) |
AU (1) | AU1358202A (en) |
DE (2) | DE10027490C2 (en) |
WO (1) | WO2001094248A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009101148A1 (en) * | 2008-02-15 | 2009-08-20 | Kone Corporation | Escalator or moving walkway |
US8960407B2 (en) | 2009-04-20 | 2015-02-24 | Otis Elevator Company | Signal correlation for missing step detection in conveyors |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6976571B2 (en) * | 2000-07-31 | 2005-12-20 | Otis Elevator Company | Comb plate for people mover |
JP4067525B2 (en) | 2002-09-13 | 2008-03-26 | オーチス エレベータ カンパニー | Safety monitoring for human transport |
US20090266674A1 (en) * | 2004-08-19 | 2009-10-29 | Markus Mueller | Method for Testing the Positional Adjustment of a Sensor for a People Conveyor and a Sensor Arrangement Therefor |
CN101259937B (en) * | 2008-01-22 | 2010-06-02 | 上海新时达电气股份有限公司 | Detecting method for staircase step deletion |
EP2421787B1 (en) * | 2009-04-20 | 2013-07-03 | Otis Elevator Company | Conveyor safety control |
US8997968B2 (en) * | 2009-04-20 | 2015-04-07 | Otis Elevator Company | Automatic adjustment of parameters for safety device |
FI122405B (en) * | 2009-12-29 | 2012-01-13 | Kone Corp | A person conveyor |
JP5679576B2 (en) * | 2011-06-06 | 2015-03-04 | 東芝エレベータ株式会社 | Passenger conveyor |
DE102012003178B4 (en) | 2012-02-17 | 2018-03-22 | Kone Corp. | Device for monitoring the function of an escalator or moving walkway |
DE102012013704A1 (en) | 2012-07-10 | 2013-06-20 | Kone Corporation | Safety device for a passenger conveyor system |
WO2015070462A1 (en) | 2013-11-18 | 2015-05-21 | Otis Elevator Company | Brake for use in passenger conveyor system |
EP3080028B1 (en) * | 2013-12-12 | 2023-05-10 | Otis Elevator Company | Safety system for use in a drive system |
CN105873847B (en) * | 2014-01-06 | 2018-01-16 | 三菱电机株式会社 | Passenger conveyors are come off detection means with step |
JP6246002B2 (en) * | 2014-01-30 | 2017-12-13 | 株式会社日立製作所 | Passenger conveyor |
GB2526368B (en) * | 2014-05-23 | 2019-10-09 | Kerett Electronic Services Ltd | Moving walkway safety system |
KR101438075B1 (en) * | 2014-06-09 | 2014-09-12 | (주)미주하이텍 | Low Speed Braking Apparatus for Escalator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2024592B3 (en) * | 1987-09-01 | 1992-03-01 | Inventio Ag | DISCONNECTOR DEVICE FOR A MECHANICAL STAIRCASE |
JPH0747460B2 (en) * | 1990-03-02 | 1995-05-24 | 株式会社日立製作所 | Control device for passenger compare |
US5316121A (en) * | 1992-11-25 | 1994-05-31 | Otis Elevator Company | Escalator missing step detection |
US5361887A (en) * | 1994-03-14 | 1994-11-08 | Otis Elevator Company | Apparatus for detecting an irregularity in the frequency of steps passing a particular point within a passenger conveying device |
US5610374A (en) * | 1994-05-10 | 1997-03-11 | Montgomery Kone Inc. | Safety string polling system |
US5785165A (en) * | 1996-10-30 | 1998-07-28 | Otis Elevator Company | Data collection and analysis system for passenger conveyors |
DE19754141C2 (en) | 1997-12-04 | 2000-05-25 | O & K Rolltreppen Gmbh | Safety device for escalators and moving walks |
US6267219B1 (en) * | 2000-08-11 | 2001-07-31 | Otis Elevator Company | Electronic safety system for escalators |
-
2000
- 2000-06-02 DE DE10027490A patent/DE10027490C2/en not_active Revoked
-
2001
- 2001-04-27 EP EP01983255A patent/EP1289871B1/en not_active Revoked
- 2001-04-27 CN CNB018119336A patent/CN1269723C/en not_active Expired - Fee Related
- 2001-04-27 WO PCT/EP2001/004750 patent/WO2001094248A1/en not_active Application Discontinuation
- 2001-04-27 DE DE50103337T patent/DE50103337D1/en not_active Revoked
- 2001-04-27 AU AU13582/02A patent/AU1358202A/en not_active Abandoned
-
2003
- 2003-03-06 US US10/379,825 patent/US6666319B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0194248A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009101148A1 (en) * | 2008-02-15 | 2009-08-20 | Kone Corporation | Escalator or moving walkway |
DE102008009458A1 (en) | 2008-02-15 | 2009-08-20 | Kone Corp. | Escalator or moving walkway |
US8960407B2 (en) | 2009-04-20 | 2015-02-24 | Otis Elevator Company | Signal correlation for missing step detection in conveyors |
Also Published As
Publication number | Publication date |
---|---|
DE50103337D1 (en) | 2004-09-23 |
US6666319B2 (en) | 2003-12-23 |
CN1438964A (en) | 2003-08-27 |
DE10027490C2 (en) | 2003-12-04 |
DE10027490A1 (en) | 2001-12-20 |
US20030168311A1 (en) | 2003-09-11 |
EP1289871B1 (en) | 2004-08-18 |
WO2001094248A1 (en) | 2001-12-13 |
CN1269723C (en) | 2006-08-16 |
AU1358202A (en) | 2001-12-17 |
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