EP1392593A2 - Drive device for escalators and travelators - Google Patents

Drive device for escalators and travelators

Info

Publication number
EP1392593A2
EP1392593A2 EP02750936A EP02750936A EP1392593A2 EP 1392593 A2 EP1392593 A2 EP 1392593A2 EP 02750936 A EP02750936 A EP 02750936A EP 02750936 A EP02750936 A EP 02750936A EP 1392593 A2 EP1392593 A2 EP 1392593A2
Authority
EP
European Patent Office
Prior art keywords
pallet
circle diameter
drive
pitch circle
components
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
Application number
EP02750936A
Other languages
German (de)
French (fr)
Other versions
EP1392593B1 (en
Inventor
Alexander Pietz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kone Corp
Original Assignee
Kone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kone Corp filed Critical Kone Corp
Publication of EP1392593A2 publication Critical patent/EP1392593A2/en
Application granted granted Critical
Publication of EP1392593B1 publication Critical patent/EP1392593B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B66B23/022—Driving gear with polygon effect reduction means

Definitions

  • the invention relates to a device for driving components of an escalator or an escalator.
  • escalators or moving walks are driven indirectly or directly via electric motors.
  • at least one reduction gear is provided, and if necessary, a transfer gear can also be provided, in the area of which the movable components of escalators or moving walkways can be driven together.
  • Such components are the step or pallet belt and, if necessary, also the handrail, provided that there are no separate drive means for the same.
  • the step or pallet belt is usually moved by means of link chains, which are changed in the direction of travel in the deflection areas via chain wheels provided there.
  • An essential requirement for escalators and moving walks is that the step or.
  • Pallet belt can be deflected as possible without the undesirable polygon effects and, when the drive is common, the step or pallet belt and the handrail run synchronously with one another, so that one does not lead or lag behind the other component, so that personal injury cannot always be ruled out.
  • link chains can be used for the step or pallet belt, which also have a greater division depending on the step or pallet width, for example about 200 or about 400 mm. If necessary, this is in operative connection with a drive motor that runs at a non-constant speed. Under certain circumstances, however, these larger chain divisions, which are desired, bring about what the polygon effect of the deflection and possibly also the synchronous drive of the handrail - problems with it.
  • the aim of the subject of the invention is therefore to develop a device for driving components of an escalator or a moving walk in such a way that regardless of the selected chain pitch of the step or. Pallet belt and the existing drive motor in any case, the polygon effect avoided as far as possible and a synchronous run of the associated handrail is ensured with a common drive.
  • a device for driving components of an escalator or moving walkway comprising at least one drive motor and at least one gear which is in operative connection with the components, such as a step or pallet chain drive shaft, with at least one pair of gearwheels on the sprocket shaft side is provided with a variable pitch circle diameter.
  • a device for driving components of an escalator or a moving walkway comprising at least one drive motor and at least one transmission which is connected to the components, such as a step or pallet sprocket shaft and a handrail drive shaft, in particular the sprocket shaft side at least one gear pair is provided with a variable pitch circle diameter.
  • the transmission concept according to the invention is preferably implemented in the area of a transfer case, the required non-uniformity being carried out by means of gear pairs having a variable pitch circle diameter, preferably exclusively on the side of the step or pallet sprocket shaft, while if a handrail drive shaft is present, the same rotates at a constant speed.
  • the pitch circle diameter fluctuates between a minimum and a maximum value as many times on the circumference as the associated sprocket for the drive chain of the step or pallet belt has teeth.
  • Figure 1 schematic diagram of an escalator drive, including a combinable step and handrail drive
  • FIG. 2 schematic diagram of a moving walkway drive, in particular for the
  • Figure 1 shows a transfer case 1 for an escalator, not shown.
  • a merely indicated drive 2 consisting of a motor and, if necessary, a reduction gear.
  • gearwheels 3, 4, 5, 6 are provided, whereby the gears 4 and 5 act on the one hand on a step sprocket shaft 7 and on the other hand on a handrail drive shaft 8.
  • the step chain wheel-side gear pair 3, 4 is provided with a variable pitch circle diameter 9, 10, the variable pitch circle diameter 9, 10 fluctuating between a minimum and a maximum value on the circumference, in such a way that the chain wheel (not shown further) has teeth.
  • the gear pair 3, 4 then generates a defined non-uniformity only on the side of the step sprocket shaft 7, while the speed of the handrail drive shaft 8 remains constant.
  • This drive concept is preferably used when an increased chain pitch (depending on the step width) of, for example, 200 or 400 mm is used, which makes a different kind of compensation of the polygon effect necessary in the case of non-uniform drive speed of the drive motor 2, in order to nevertheless ensure synchronism between step or Bring the sprocket shaft 7 and handrail drive shaft 8.
  • the schematic diagram according to FIG. 2 shows a transmission 1 'in operative connection with a drive motor 2' for use in a moving walkway, not shown.
  • Gearwheels 3 ', 4' are arranged within the transmission 1 ', the gearwheel 4' forming the output in the direction of a pallet sprocket shaft 7 '.
  • the pair of gearwheels 3 ′, 4 ′ on the pallet sprocket side is provided with a variable pitch circle diameter 9 ′, 10 ′ in analogy to FIG. 1.

Landscapes

  • Escalators And Moving Walkways (AREA)

Abstract

The invention relates to a device for driving components of an escalator or travelator, comprising at least one drive motor, at least one gearbox, connected to said components, such as a step or palette chainwheel shaft and optionally a hand-rail drive shaft, whereby, in particular on the chainwheel shaft side, at least one gear pair is provided with a variable reference diameter.

Description

Antriebseinrichtung für Rolltreppen bzw. Rollsteige Drive device for escalators or moving walks
Die Erfindung betrifft eine Einrichtung zum Antreiben von Bauteilen einer Rolltreppe bzw. eines Rollsteiges.The invention relates to a device for driving components of an escalator or an escalator.
Allgemein bekannt ist, daß Rolltreppen bzw. Rollsteige über Elektromotoren mittel- oder unmittelbar angetrieben werden. Bei mittelbarem Antrieb ist mindestens ein Untersetzungsgetriebe vorgesehen, wobei bedarfsweise auch noch Verteilergetriebe vorgesehen werden können, im Bereich derer die beweglichen Bauteile von Rolltreppen bzw. Rollsteigen zusammengefaßt antreibbar sind. Derartige Bauteile sind das Stufen- bzw. Palettenband sowie bedarfsweise auch der Handlauf, sofern für selbigen keine eigenen Antriebsmittel gegeben sind. Das Stufen- bzw. Palettenband wird üblicherweise mittels Laschenketten bewegt, welche in den Umlenkbereichen über dort vorgesehene Kettenräder in ihrer Laufrichtung verändert werden. Eine wesentliche Forderung bei Rolltreppen und Rollsteigen ist es, daß das Stufenbzw. Palettenband möglichst ohne die unerwünschten Polygoneffekte umlenkbar ist und bei gemeinsamem Antrieb das Stufen- bzw. Palettenband und der Handlauf synchron zueinander verlaufen, damit nicht das eine dem anderen Bauteil vor- bzw. nacheilt, wodurch Personenschäden nicht immer auszuschließen sind.It is generally known that escalators or moving walks are driven indirectly or directly via electric motors. In the case of an indirect drive, at least one reduction gear is provided, and if necessary, a transfer gear can also be provided, in the area of which the movable components of escalators or moving walkways can be driven together. Such components are the step or pallet belt and, if necessary, also the handrail, provided that there are no separate drive means for the same. The step or pallet belt is usually moved by means of link chains, which are changed in the direction of travel in the deflection areas via chain wheels provided there. An essential requirement for escalators and moving walks is that the step or. Pallet belt can be deflected as possible without the undesirable polygon effects and, when the drive is common, the step or pallet belt and the handrail run synchronously with one another, so that one does not lead or lag behind the other component, so that personal injury cannot always be ruled out.
Im Hinblick auf eine Optimierung des Antriebskonzeptes, insbesondere zur Reduzierung des in den Umlenkbereichen entstehenden Polygoneffektes können für das Stufen- bzw. Palettenband Laschenketten zum Einsatz gelangen, die auch eine größere Teilung in Abhängigkeit von der Stufen- bzw. Palettenbreite, beispielsweise etwa 200 oder etwa 400 mm, aufweisen. Dies bedarfsweise in Wirkverbindung mit einem Antriebsmotor, der mit nicht konstanter Drehzahl läuft. Diese an sich erwünschten vergrößerten Kettenteilungen bringen unter Umständen jedoch - was den Polygoneffekt bei der Umlenkung und ggf. auch die synchrone Antriebsweise des Handlaufes betrifft - Probleme mit sich.With a view to optimizing the drive concept, in particular to reduce the polygon effect occurring in the deflection areas, link chains can be used for the step or pallet belt, which also have a greater division depending on the step or pallet width, for example about 200 or about 400 mm. If necessary, this is in operative connection with a drive motor that runs at a non-constant speed. Under certain circumstances, however, these larger chain divisions, which are desired, bring about what the polygon effect of the deflection and possibly also the synchronous drive of the handrail - problems with it.
Ziel des Erfindungsgegenstandes ist es daher, eine Einrichtung zum Antreiben von Bauteilen einer Rolltreppe bzw. eines Rollsteiges dahingehend weiterzubilden, daß unabhängig von der gewählten Kettenteilung des Stufenbzw. Palettenbandes sowie des vorhandenen Antriebsmotors in jedem Fall der Polygoneffekt weitestgehend vermieden und bei gemeinsamem Antrieb auch ein synchroner Lauf des zugehörigen Handlaufes sichergestellt wird.The aim of the subject of the invention is therefore to develop a device for driving components of an escalator or a moving walk in such a way that regardless of the selected chain pitch of the step or. Pallet belt and the existing drive motor in any case, the polygon effect avoided as far as possible and a synchronous run of the associated handrail is ensured with a common drive.
Dieses Ziel wird einerseits erreicht durch eine Einrichtung zum Antreiben von Bauteilen einer Rolltreppe bzw. eines Rollsteiges, beinhaltend mindestens einen Antriebsmotor sowie mindestens ein Getriebe, das mit den Bauteilen, wie einer Stufen- bzw. Palettenkettenantriebswelle, in Wirkverbindung steht, wobei kettenradwellenseitig mindestens ein Zahnradpaar mit einem variablen Teilkreisdurchmesser vorgesehen ist.This goal is achieved on the one hand by a device for driving components of an escalator or moving walkway, comprising at least one drive motor and at least one gear which is in operative connection with the components, such as a step or pallet chain drive shaft, with at least one pair of gearwheels on the sprocket shaft side is provided with a variable pitch circle diameter.
Dieses Ziel wird andererseits erreicht durch eine Einrichtung zum Antreiben von Bauteilen einer Rolltreppe bzw. eines Rollsteiges, beinhaltend mindestens einen Antriebsmotor sowie mindestens ein Getriebe, das mit den Bauteilen, wie einer Stufen- bzw. Palettenkettenradwelle sowie einer Handlaufantriebswelle in Verbindung steht, wobei insbesondere kettenradwellenseitig mindestens ein Zahnradpaar mit einem variablen Teilkreisdurchmesser vorgesehen ist.This goal is achieved on the other hand by a device for driving components of an escalator or a moving walkway, comprising at least one drive motor and at least one transmission which is connected to the components, such as a step or pallet sprocket shaft and a handrail drive shaft, in particular the sprocket shaft side at least one gear pair is provided with a variable pitch circle diameter.
Vorteilhafte Weiterbildungen der nebengeordneten Erfindungsgegenstände sind den Unteransprüchen zu entnehmen.Advantageous developments of the subordinate objects of the invention can be found in the subclaims.
Die, bedingt durch vergrößerte Kettenteilungen der Stufen- bzw. Palettenkette, erzeugten Polygoneffekte und bedarfsweise ungleichförmigenThe polygon effects generated by the increased chain divisions of the step or pallet chain and, if necessary, non-uniform
Antriebsdrehzahlen des Antriebsmotors, die sich negativ auf das Kettenrad und ggf. auch auf das Handlaufrad auswirken, werden durch die Erfindungsgegenstände dahingehend überwunden, daß nunmehr der Polygoneffekt bei größerer Kettenteilung minimiert ist und bedarfsweise auch der Handlauf gleichförmig zum Stufen- bzw. Palettenband angetrieben werden kann. Die positiven Effekte einer vergrößerten Kettenteilung können somit wirkungsvoll in das Antriebskonzept integriert werden.Drive speeds of the drive motor, which negatively affect the sprocket and if necessary also affect the handrail wheel, are overcome by the objects of the invention to the effect that the polygon effect is now minimized with greater chain pitch and if necessary the handrail can also be driven uniformly to the step or pallet belt. The positive effects of an increased chain pitch can thus be effectively integrated into the drive concept.
Vorzugsweise wird das erfindungsgemäße Getriebekonzept im Bereich eines Verteilergetriebes realisiert, wobei die geforderte Ungleichförmigkeit mittels Zahnradpaaren, die einen variablen Teilkreisdurchmesser aufweisen, vorzugsweise ausschließlich auf der Seite der Stufen- bzw. Palettenkettenradwelle vorgenommen wird, während bei Vorhandensein einer Handlaufantriebswelle selbige mit konstanter Drehzahl umläuft.The transmission concept according to the invention is preferably implemented in the area of a transfer case, the required non-uniformity being carried out by means of gear pairs having a variable pitch circle diameter, preferably exclusively on the side of the step or pallet sprocket shaft, while if a handrail drive shaft is present, the same rotates at a constant speed.
Der Teilkreisdurchmesser schwankt hierbei zwischen einem Minimal- und einem Maximalwert so viele Male auf dem Umfang, wie das zugehörige Kettenrad für die Antriebskette des Stufen- bzw. Palettenbandes Zähne besitzt.The pitch circle diameter fluctuates between a minimum and a maximum value as many times on the circumference as the associated sprocket for the drive chain of the step or pallet belt has teeth.
Der Erfindungsgegenstand ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:The subject matter of the invention is illustrated in the drawing using an exemplary embodiment and is described as follows. Show it:
Figur 1 Prinzipskizze eines Rolltreppenantriebes, beinhaltend einen kombinierbaren Stufen- und Handlaufantrieb;Figure 1 schematic diagram of an escalator drive, including a combinable step and handrail drive;
Figur 2 Prinzipskizze eines Rollsteigantriebes, insbesondere für dasFigure 2 schematic diagram of a moving walkway drive, in particular for the
Palettenband.Pallet band.
Figur 1 zeigt ein Verteilergetriebe 1 für eine nicht weiter dargestellte Rolltreppe. Dem Verteilergetriebe 1 vorgeschaltet ist ein lediglich angedeuteter, aus Motor und bedarfsweise Untersetzungsgetriebe bestehender Antrieb 2. Innerhalb des Verteilergetriebes 1 sind Zahnräder' 3,4,5,6 vorgesehen, wobei die Zahnräder 4 und 5 einerseits auf eine Stufenkettenradwelle 7 und andererseits auf eine Handlaufantriebswelle 8 einwirken.Figure 1 shows a transfer case 1 for an escalator, not shown. Upstream of the transfer case 1 is a merely indicated drive 2, consisting of a motor and, if necessary, a reduction gear. Inside the transfer case 1, gearwheels 3, 4, 5, 6 are provided, whereby the gears 4 and 5 act on the one hand on a step sprocket shaft 7 and on the other hand on a handrail drive shaft 8.
Erfindungsgemäß ist das stufenkettenradseitige Zahnradpaar 3,4 mit einem variablem Teilkreisdurchmesser 9,10 versehen, wobei der variable Teilkreisdurchmesser 9,10 zwischen einem Minimal- und einem Maximalwert auf dem Umfang schwankt, dergestalt, wie das nicht weiter dargestellte Kettenrad Zähne besitzt. Das Zahnradpaar 3,4 erzeugt dann eine definierte Ungleichförmigkeit lediglich auf der Seite der Stufenkettenradwelle 7, während die Drehzahl der Handlaufantriebswelle 8 konstant verbleibt. Dieses Antriebskonzept kommt vorzugsweise dann zum Einsatz, wenn eine vergrößerte Kettenteilung (abhängig von der Stufenbreite) von beispielsweise200 oder 400 mm zum Einsatz gelangt, die bei ungleichförmiger Antriebsdrehzahl des Antriebsmotors 2 einen andersartigen Ausgleich des Polygoneffektes erforderlich macht, um dennoch einen Gleichlauf zwischen Stufen- bzw. Kettenradwelle 7 und Handlaufantriebswelle 8 herbeizuführen.According to the step chain wheel-side gear pair 3, 4 is provided with a variable pitch circle diameter 9, 10, the variable pitch circle diameter 9, 10 fluctuating between a minimum and a maximum value on the circumference, in such a way that the chain wheel (not shown further) has teeth. The gear pair 3, 4 then generates a defined non-uniformity only on the side of the step sprocket shaft 7, while the speed of the handrail drive shaft 8 remains constant. This drive concept is preferably used when an increased chain pitch (depending on the step width) of, for example, 200 or 400 mm is used, which makes a different kind of compensation of the polygon effect necessary in the case of non-uniform drive speed of the drive motor 2, in order to nevertheless ensure synchronism between step or Bring the sprocket shaft 7 and handrail drive shaft 8.
Die Prinzipskizze gemäß Figur 2 zeigt ein Getriebe 1 ' in Wirkverbindung mit einem Antriebsmotor 2' zum Einsatz in einem nicht weiter dargestellten Rollsteig. Innerhalb des Getriebes 1 ' sind Zahnräder 3', 4' angeordnet, wobei das Zahnrad 4' den Abtrieb in Richtung einer Palettenkettenradwelle 7' bildet. Erfindungsgemäß ist das palettenkettenradseitige Zahnradpaar 3', 4' in Analogie zu Figur 1 mit einem variablen Teilkreisdurchmesser 9',10'versehen. The schematic diagram according to FIG. 2 shows a transmission 1 'in operative connection with a drive motor 2' for use in a moving walkway, not shown. Gearwheels 3 ', 4' are arranged within the transmission 1 ', the gearwheel 4' forming the output in the direction of a pallet sprocket shaft 7 '. According to the invention, the pair of gearwheels 3 ′, 4 ′ on the pallet sprocket side is provided with a variable pitch circle diameter 9 ′, 10 ′ in analogy to FIG. 1.

Claims

P a t e n t a n s p r ü c h e Patent claims
1 . Einrichtung zum Antreiben von Bauteilen (7') einer Rolltreppe bzw. eines Rollsteiges, beinhaltend mindestens einen Antriebsmotor (2') sowie mindestens ein Getriebe (V) das mit den Bauteilen (7'), wie einer Stufen- bzw. Palettenkettenantriebswelle in Wirkverbindung steht, wobei kettenradwellenseitig mindestens ein Zahnradpaar (3',4') mit einem variablen Teilkreisdurchmesser (9', 10') vorgesehen ist.1 . Device for driving components (7 ') of an escalator or moving walk, comprising at least one drive motor (2') and at least one gear (V) which is in operative connection with the components (7 '), such as a step or pallet chain drive shaft At least one pair of gearwheels (3 ', 4') with a variable pitch circle diameter (9 ', 10') is provided on the sprocket shaft side.
2. Einrichtung zum Antreiben von Bauteilen (7,8) einer Rolltreppe bzw. eines Rollsteiges, beinhaltend mindestens einen Antriebsmotors (2) sowie mindestens ein Getriebe (1 ), das mit den Bauteilen (7,8), wie einer Stufen- bzw. Palettenkettenradwelle sowie einer Handlaufantriebswelle in Wirkverbindung steht, wobei insbesondere kettenradwellenseitig mindestens ein Zahnradpaar (3,4) mit einem variablen Teilkreisdurchmesser (9,10) vorgesehen ist.2. Device for driving components (7, 8) of an escalator or moving walk, comprising at least one drive motor (2) and at least one gear (1), which is connected to the components (7, 8), such as a step or Pallet sprocket shaft and a handrail drive shaft are operatively connected, in particular at least one pair of gearwheels (3, 4) with a variable pitch circle diameter (9, 10) is provided on the sprocket shaft side.
3. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Getriebe (1 ) ein Verteilergetriebe ist.3. Device according to claim 1 or 2, characterized in that the transmission (1) is a transfer case.
4. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Teilkreisdurchmesser (9, 10, 9', 10') des Zahnradpaares (3, 4,3', 4'), in Umfangsrichtung gesehen, zwischen einem Minimal- und einem Maximalwertschwankend vorgesehen ist.4. Device according to one of claims 1 to 3, characterized in that the pitch circle diameter (9, 10, 9 ', 10') of the gear pair (3, 4,3 ', 4'), seen in the circumferential direction, between a minimum and a maximum value fluctuation is provided.
5. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Schwankung des Teilkreisdurchmessers (9, 10,9', 10') auf dem Umfang in Analogie zur Zähnezahl des Kettenrades für das Stufen- oder Palettenband steht. Einrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Ungleichförmigkeit ausschließlich auf der Seite der Stufen- bzw. Palettenkettenradwelle (7,7') erzeugt wird, während bei Vorhandensein einer Handlaufantriebswelle (8) selbige gleichförmig antreibbar ist. 5. Device according to one of claims 1 to 4, characterized in that the fluctuation of the pitch circle diameter (9, 10.9 ', 10') on the circumference is analogous to the number of teeth of the chain wheel for the step or pallet belt. Device according to one of claims 1 to 5, characterized in that the non-uniformity is generated exclusively on the side of the step or pallet sprocket shaft (7, 7 '), whereas if a handrail drive shaft (8) is present, the same can be driven uniformly.
EP02750936A 2001-06-06 2002-05-15 Drive device for escalators and travelators Expired - Lifetime EP1392593B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10127587A DE10127587A1 (en) 2001-06-06 2001-06-06 Escalator drive system linked to drive components by variable diameter gear
DE10127587 2001-06-06
PCT/EP2002/005409 WO2002098783A2 (en) 2001-06-06 2002-05-15 Drive device for escalators and travelators

Publications (2)

Publication Number Publication Date
EP1392593A2 true EP1392593A2 (en) 2004-03-03
EP1392593B1 EP1392593B1 (en) 2005-03-30

Family

ID=7687467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02750936A Expired - Lifetime EP1392593B1 (en) 2001-06-06 2002-05-15 Drive device for escalators and travelators

Country Status (7)

Country Link
US (1) US6874613B2 (en)
EP (1) EP1392593B1 (en)
JP (1) JP2004527433A (en)
CN (1) CN1266022C (en)
DE (2) DE10127587A1 (en)
ES (1) ES2236546T3 (en)
WO (1) WO2002098783A2 (en)

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DE10218373A1 (en) * 2002-04-25 2003-11-13 Kone Corp Drive system for moving staircases and pavements has a drive motor and a gearing mechanism to use a step/pallet chain/handrail drive shaft for an effective link with deflection elements/handrails.
US7195115B2 (en) * 2005-07-15 2007-03-27 Laitram, L.L.C. Modular-belt conveyors with variable-speed drive motors
CN101293614B (en) * 2007-04-26 2011-03-23 黄民英 Escalator or moving pavement driving device
US7954619B2 (en) 2007-06-01 2011-06-07 Kone Corporation Load sharing handrail drive apparatus
JP5841244B2 (en) * 2011-05-23 2016-01-13 オーチス エレベータ カンパニーＯｔｉｓ Ｅｌｅｖａｔｏｒ Ｃｏｍｐａｎｙ Polygonal compensation coupling for chain and sprocket drive systems
CN104671042B (en) * 2015-03-13 2017-09-05 沈阳华彩机械制造有限公司 It is drive tracks voluntarily elevating mechanism more
CN104709808A (en) * 2015-03-26 2015-06-17 绍兴文理学院 Combination drive escalator

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DE10020787A1 (en) * 1999-04-30 2001-01-04 Otis Elevator Co Operation controller for a moving staircase has a mechanism for compensating for vibration produced in the drive mechanism by production of a compensating torque in the opposite direction to give improved user comfort
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Also Published As

Publication number Publication date
WO2002098783A2 (en) 2002-12-12
DE50202636D1 (en) 2005-05-04
ES2236546T3 (en) 2005-07-16
DE10127587A1 (en) 2002-12-19
CN1266022C (en) 2006-07-26
CN1512958A (en) 2004-07-14
EP1392593B1 (en) 2005-03-30
US6874613B2 (en) 2005-04-05
WO2002098783A3 (en) 2003-09-12
US20040134760A1 (en) 2004-07-15
JP2004527433A (en) 2004-09-09

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