EP1231177B1 - Kammplatte für Fahrtreppe oder Fahrsteig - Google Patents
Kammplatte für Fahrtreppe oder Fahrsteig Download PDFInfo
- Publication number
- EP1231177B1 EP1231177B1 EP02001010A EP02001010A EP1231177B1 EP 1231177 B1 EP1231177 B1 EP 1231177B1 EP 02001010 A EP02001010 A EP 02001010A EP 02001010 A EP02001010 A EP 02001010A EP 1231177 B1 EP1231177 B1 EP 1231177B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- escalator
- comb
- sound
- tooth
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/02—Safety devices of escalators or moving walkways responsive to, or preventing, jamming by foreign objects
- B66B29/06—Combplates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
Definitions
- the invention relates to an escalator or moving walk, according to the preamble of claim 1.
- comb plates are regularly provided, which with the Comb the surface of the step or pallet.
- the Comb plates comb segments, of which individual teeth are in Extend grooves of the step or pallet surfaces. This long-known arrangement serves to prevent the passengers of the escalator or moving walk at the careless Get off in the exit area of the escalator or the Moving walk, but also to prevent that objects are taken from the step or pallet belt can be.
- the teeth of the comb segment are long and need to be cut because of the Groove width can be comparatively narrow. Due to this they are quite sensitive to breakage, especially when looking from the side Burden. If they are bent laterally - also in a springy manner - there is a risk of having a web between the grooves of the To come into contact with the surface. The teeth can then also grind for a while before they abort.
- the invention is therefore based on the object of an escalator or a moving walk according to the preamble of claim 1 to create a reliable break monitoring of comb teeth allowed and also extended maintenance intervals allows.
- the solution according to the invention surprisingly offers the possibility of detect a tooth fracture safely. According to the invention It is particularly favorable that the detection is direction-independent takes place so that there is no risk that a broken tooth remains undetected in the entry area.
- This can be done despite loud ambient noises sound spectrum associated with the breakage of a tooth without record further and clearly.
- a combined envelope and frequency detector inside the evaluation circuit of the sensor provided. This is a sharp demarcation between the breakage of a tooth on the one hand and, for example, that is also bright and sharp sounding sound of hitting an umbrella tip or of a stick on a metallic part of the escalator or the moving walk possible.
- the low cost provided one sensor per comb segment to arrange.
- the sensor can be directly from below on the comb segment apply, preferably in the center of the tooth root area.
- Solution is provided in the comb plate and / or introduce sound into the comb segments and via the sound spectrum transmitted or reflected by the comb segments to conclude that all teeth are intact.
- the evaluation circuit is in a special way educated. Without further ado, it becomes the sound spectrum of a Comb segments in undamaged form and the sound spectrum of one Comb segment with broken tooth captured. About the finding the difference becomes a number of criteria set that is significant for broken segment teeth are.
- an escalator or sensors provided on a moving walk to one or two Evaluation circuits are connected.
- the are preferred Sensors activated in quick succession and queried for a to realize complete tooth breakage monitoring.
- the sound sensor can have a bandwidth, which corresponds to the sound spectrum of the tooth fracture, i.e. in extends into the ultrasound range.
- the senor has strong damping at low Has frequencies.
- a corresponding one High pass filter may be provided. In both cases there is impact sound largely kept away from the output signal of the sensor, so that it does not falsify the measurement result.
- Fig. 1 is an embodiment of an inventive Escalator 10 partially shown.
- the comb plate shown has a plurality of comb segments on, which are arranged side by side and of which in Fig. 1st a comb segment 12 is shown in plan view.
- a comb segment 12 is shown in plan view.
- the escalator shows itself in a known manner both in the boarding area and corresponding segments also in the exit area.
- the comb segment 12 has a plurality of teeth 14 which are arranged at the same distance from each other.
- the teeth are accordingly arranged in a grid dimension that corresponds to the grid dimension the grooves of the surface of the associated escalator step equivalent.
- the teeth are around at both ends of the comb segments half a grid spaced from the associated end, so that when several comb segments are lined up, the grid dimension is adhered to.
- Each comb segment 12 has three fastening recesses 16, 18 and 20 on that for sure-footed attachment and Storage on the associated comb plate are intended.
- the Mounting recesses 16 to 20 are in the rear end the comb segments 12 arranged. From there to the teeth 14 extend on the underside of the comb segments 12 webs 22, which in a manner known per se towards the teeth 14 broaden. This solution allows it with very little To achieve material stiffening to achieve the Requirements are sufficient.
- the comb segments 12 - as can be seen from FIG. 4 is - slightly crowned at the top, what additionally contributes to stiffening.
- the teeth 14 have a width that is less than one Is fifth of their length and also significantly less than theirs 4 apparent height. They are suitable in the grooves the step to run, whereby in normal operation a non-contact Combing between the teeth of the comb segment and the step is possible.
- the Sound sensor 24 is intensively connected to comb segment 12, for example glued there.
- the sound sensor 24 is preferred attached to the central web 22, it being understood that it can be convenient to attach the sound sensor 24 laterally.
- the sound sensor is connected to a line that connects it to connects an evaluation circuit.
- Sound sensors for example five sound sensors on the a comb plate mounted comb segments, with a single Evaluation circuit connected.
- a single Evaluation circuit can be a time division multiplex be used.
- the solution is the on-site sound sensors 24 using two-wire technology trained so that the associated output signal in Range between 4 and 20 mA already the corresponding Offers signaling function.
- the teeth 14 are in particular in the region of their tooth root 26 breakage. There is in a manner known per se Radius 28 provided the notch effect at this point should reduce. In case of overload in horizontal or vertical The tooth 14 in question tends in the direction to break the tooth root 26.
- the breakage of the tooth loosens according to the invention a characteristic noise that with the sound sensor 24 is detected.
- the sound is particularly intense over the distributed over the entire width of the one-piece comb segment 12 and is detectable at any point.
- a sound transmitter 30 is provided is.
- the sound transmitter 30 is from the sound sensor 24 clearly spaced.
- the sound transmitter 30 conducts intermittently a characteristic sound spectrum into the Comb segment 12 a. For example, a sine wave with a frequency in the ultrasound range, which is tuned to the resonance frequency of the teeth 14. That so Existing sound spectrum is from the sound sensor 24, which in this embodiment is designed as an ultrasonic sensor, permanently recorded.
- the measured is in the evaluation circuit Sound spectrum with the standard sound spectrum of an intact Comb segment compared. If one tooth or more teeth have broken off, a different sound spectrum arises, be it through that the sound transmission is impaired, be it that a tooth stub transmits higher-frequency vibrations. By recording the differences, the sound spectrum on Sensor differentiation used whether the comb segment 12 is intact or not.
- This solution also allows fine cracks in the comb segment that affect the propagation of sound, so that according to the invention at the same time permanent material monitoring is possible.
- Fig. 3 From Fig. 3 it can be seen that the teeth 14 from the Extend comb segment 12 to the front / down.
- the side view 4 can be seen in this respect, it being understood that that the exact design of the teeth and the comb plate can be adapted to requirements in a wide range.
- the sound sensor 24 protected between the comb segment 12 and a comb plate 31 appropriate. It is in a recess in the comb plate 31 added so that standard comb segments 12 are used can.
Description
- Fig. 1
- eine schematisierte Draufsicht eines Kammsegments für eine erfindungsgemäße Fahrtreppe in einer ersten Ausführungsform;
- Fig. 2
- eine schematisierte Draufsicht eines Kammsegments für eine erfindungsgemäße Fahrtreppe in einer zweiten Ausführungsform;
- Fig. 3
- eine vergrößerte Stirnansicht eines Details eines erfindungsgemäßen Kammsegment;
- Fig. 4
- eine Seitenansicht eines Kammsegments für eine Ausführungsform einer erfindungsgemäßen Fahrtreppe; und
- Fig. 5
- eine Seitenansicht eines Kammsegments für eine weitere Ausführungsform einer erfindungsgemäßen Fahrtreppe.
Claims (10)
- Fahrtreppe oder Fahrsteig, mit je einer Kammplatte am Einstiegs- und Ausstiegsbereich der Fahrtreppe oder des Fahrsteigs, wobei die Kammplatte Kammsegmente aufweist, deren Zähne mit Nuten in der Treppenstufe oder Palette kämmen, dadurch gekennzeichnet, dass an das Kammsegment (12) oder an die Kammplatte einer oder mehrere Schallsensoren (24) angeschlossen sind, mit welchen ein Bruch eines Zahns (14) erfassbar ist.
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Kammsegment (12) einen Sensor aufweist, mit dem ein Bruch eines Zahns (14) des betreffenden Kammsegments (12) erfassbar ist.
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensor des Kammsegments (12) der Zahnwurzel (26) benachbart angeordnet ist, insbesondere an der Unterseite des Kammsegments (12).
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensor an eine Auswerteschaltung angeschlossen ist, mit welcher das Ausgangssignal des Sensors auswertbar ist, wobei auch das Frequenzspektrum des Ausgangssignals des Sensors erfassbar ist.
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensor als Ultraschallsensor ausgebildet ist, der mindestens auch Ultraschallsignale empfängt.
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schallemission eines Zahnbruchs vom Sensor erfassbar ist und die Auswerteschaltung mindestens auch eine Hüllkurven-Erfassungsvorrichtung aufweist.
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Sensor während des Betriebs der Fahrtreppe (10) kontinuierlich aktiv ist.
- Fahrtreppe oder Fahrsteig nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass ein Schallsender (30) vorgesehen ist, der das Kammsegment (12) von dem Sensor beabstandet beaufschlagt und dass der Sensor ein von dem Schallsensor (24) stammendes reflektiertes Signal emfängt.
- Fahrtreppe oder Fahrsteig nach einem der Ansprüche 1 bis 5 oder 8, dadurch gekennnzeichnet, dass der Schallsender (30) und der Sensor periodisch intermittierend aktivierbar sind und ein Schallspektrum signalisieren, das einen abgebrochenen Kammzahn wiedergibt.
- Fahrtreppe oder Fahrsteig nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schallsensor (24) als Körperschall-Mikrofon ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20102251U | 2001-02-09 | ||
DE20102251U DE20102251U1 (de) | 2001-02-09 | 2001-02-09 | Fahrtreppe oder Fahrsteig |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1231177A2 EP1231177A2 (de) | 2002-08-14 |
EP1231177A3 EP1231177A3 (de) | 2003-01-02 |
EP1231177B1 true EP1231177B1 (de) | 2004-07-14 |
Family
ID=7952737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02001010A Expired - Lifetime EP1231177B1 (de) | 2001-02-09 | 2002-01-17 | Kammplatte für Fahrtreppe oder Fahrsteig |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1231177B1 (de) |
AT (1) | ATE271014T1 (de) |
CZ (1) | CZ297158B6 (de) |
DE (2) | DE20102251U1 (de) |
ES (1) | ES2220837T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101337639B (zh) * | 2007-07-02 | 2010-06-02 | 东芝电梯株式会社 | 乘客输送机监视装置以及远程监视系统 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9346654B2 (en) | 2014-05-29 | 2016-05-24 | Goldstein Biomedical Consultants Llc | Regenerative power capture system for endless track escalators and moving walkways |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5255771A (en) * | 1991-07-18 | 1993-10-26 | Montgomery Elevator Company | Combplate safety device |
JPH05132280A (ja) * | 1991-11-12 | 1993-05-28 | Hitachi Building Syst Eng & Service Co Ltd | 乗客コンベアのクリート欠損検出装置 |
US5381687A (en) * | 1992-10-19 | 1995-01-17 | Otis Elevator Company | Escalator combplate stop switch load calibrating assembly |
AUPN605295A0 (en) * | 1995-10-18 | 1995-11-09 | Loderway Pty. Limited | Systems for the conveyance of standing passengers |
-
2001
- 2001-02-09 DE DE20102251U patent/DE20102251U1/de not_active Expired - Lifetime
-
2002
- 2002-01-17 EP EP02001010A patent/EP1231177B1/de not_active Expired - Lifetime
- 2002-01-17 DE DE50200605T patent/DE50200605D1/de not_active Expired - Fee Related
- 2002-01-17 ES ES02001010T patent/ES2220837T3/es not_active Expired - Lifetime
- 2002-01-17 AT AT02001010T patent/ATE271014T1/de not_active IP Right Cessation
- 2002-02-08 CZ CZ20020493A patent/CZ297158B6/cs not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101337639B (zh) * | 2007-07-02 | 2010-06-02 | 东芝电梯株式会社 | 乘客输送机监视装置以及远程监视系统 |
Also Published As
Publication number | Publication date |
---|---|
CZ2002493A3 (cs) | 2002-10-16 |
EP1231177A3 (de) | 2003-01-02 |
DE50200605D1 (de) | 2004-08-19 |
ES2220837T3 (es) | 2004-12-16 |
CZ297158B6 (cs) | 2006-09-13 |
EP1231177A2 (de) | 2002-08-14 |
ATE271014T1 (de) | 2004-07-15 |
DE20102251U1 (de) | 2001-07-05 |
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