EP1167271B1 - Drive for handrail - Google Patents

Drive for handrail Download PDF

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Publication number
EP1167271B1
EP1167271B1 EP01112918A EP01112918A EP1167271B1 EP 1167271 B1 EP1167271 B1 EP 1167271B1 EP 01112918 A EP01112918 A EP 01112918A EP 01112918 A EP01112918 A EP 01112918A EP 1167271 B1 EP1167271 B1 EP 1167271B1
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EP
European Patent Office
Prior art keywords
escalator
hand rail
friction
moving pavement
pavement according
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
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EP01112918A
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German (de)
French (fr)
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EP1167271A1 (en
Inventor
Ludwig Reiner
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ThyssenKrupp Fahrtreppen GmbH
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Thyssen Fahrtreppen GmbH
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Publication of EP1167271A1 publication Critical patent/EP1167271A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00Component parts of escalators or moving walkways
    • B66B23/02Driving gear
    • B66B23/04Driving gear for handrails

Definitions

  • the invention relates to an escalator or moving walk, according to the preamble of claim 1.
  • Handrails from escalators and moving walks are common in the area of the lower handrail run, i.e. with the handrail return, driven. It is known to use the handrail via a drive wheel to let run, and the handrail tension over one Adjust the counter wheel. Due to the relatively large diameter the drive wheel, but also the counter wheel, the walk and Bending work can be reduced as much as possible so that the Handrail warms as little as possible due to the movement.
  • GB 10 86 930 discloses an escalator or moving walk according to the preamble of claim 1.
  • the invention is therefore based on the object of an escalator or a moving walk according to the preamble of claim 1 that extends the life of the handrail, less flexing and bending work and thus less Provides energy losses, but still a reliable one and easily with the escalator or moving walk drive synchronized handrail drive guaranteed.
  • a major advantage of the invention is the reduction the total width of the escalator / moving walk since the Handrail no longer next to, but above the step or Pallet belt can be arranged.
  • the invention revolving chain preferably a roller chain, in any suitable length can be formed so that the frictional force to be transferred to the spatial conditions can be adjusted without a lateral protrusion and so that space problems would be feared.
  • Friction transmission elements friction blocks for use power transmission is intense, but still gentle on the handrail, durable and yet inexpensive manufacture.
  • the measures according to the invention succeed in a surprisingly simple way, the function of the Power transmission in the area of the drive elements from the Function of providing the necessary friction too separate. In this way, not only can the soft Friction force transmitting element like a friction block use, but also a very wear-resistant chain that a significantly lower stretch than the handrail having.
  • the drive can then take place so that the Friction blocks are pressed against the handrail and stand up for the generation of propulsion to a very small extent in one Deform the parallelepiped shape. It is particularly favorable that the pressure on the handrail is even with each friction block takes place, so that the surface pressure for the handrail is particularly low and has no whale tips. This ensures that the life of the handrail is not reduced by the drive.
  • the friction blocks act like no wear on the handrail Erasers and are therefore also characterized by a good durability and good static friction at the same time.
  • secure anchoring in one is essential Chain link
  • the pressure of the friction elements on the Handrail preferably provided via a pressure rail that presses on the rollers of the chain from behind and for example the friction blocks on the handrail presses.
  • the pressure rail is any suitable form that can be continuous and even pressure between handrail and friction elements ensures.
  • the pressure rail in particular prevents the chain bends due to the pressure on the handrail and then generated pressure peaks in the area of the sprockets become.
  • two are opposite one another Friction elements provided in a suitable Are trained.
  • the two chains can be in their spatial arrangement also be slightly offset from each other.
  • an escalator 10 is shown in one detail, namely, showing the drive for a handrail 12.
  • the escalator 10 is driven by a main shaft 14, which is part of a drive train 16.
  • the drivetrain 16 also has a pulley 18 which over a belt 20 drives a sprocket 22.
  • a modified Design is the power transmission between the Sprocket 22 and the main shaft 14 via another chain provided so that a chain pulley instead of the pulley 18 18 and a chain 20 is used instead of the belt 20 becomes.
  • the chain 26 is designed so that it with their Chain links leaned against the handrail 12 in a suitable manner.
  • the handrail is driven in the lower area Trumes of the handrail 12, so that the handrail 12 at one lying C-shape is open at the top and the chain 22 in the Handrail 12 protrudes.
  • the chain 22 is opposite to the handrail 12 a further chain 30 is provided which has a corresponding Has structure.
  • the chain 30 is also between two sprockets 32 and 34 clamped, the sprocket 34 optionally can be wrapped around the belt 20 and driven. This configuration is with the dashed line of the belt 20 indicated.
  • the chain 30 is part of a further friction element 36, see above that the handrail 12 between the friction elements 28 and 36th is clamped. There is one for each friction element Pressure rail 38 and 40, the chains 26 and 30 with a preferably adjustable spring force F presses on the handrail.
  • Each chain 26 and 30 has a plurality of uniform ones and interconnected chain links, two Chain links 42 shown in the area of chain 30 and in Area of the chain 26 are indicated by dashed lines.
  • a chain link 32 is provided with a friction block 44, which is firmly on attached to it and covering essentially its entire Length extends.
  • the friction block 44 has a free surface on, which faces the handrail 12 and lies on it completely.
  • the distance between the friction blocks 44 is considerable less than the length of each friction block 44 so that the System length between the handrail and chain over significantly more than half the distance between the sprockets 22 and 24 is present.
  • the friction blocks 44 are designed in a suitable manner and consist of a type of bicycle brake pads edged block of an elastomer that is at least something is softer than the material for the handrail 12. It understands know that any suitable materials are used can, whose coefficient of static friction is large enough. After this a flat area is guaranteed exists in the area of Friction blocks also insensitivity to any Bumps in the handrail, such as those caused by Damage to the handrail can occur.
  • Both chains 26 and 30 are preferably driven, so that also the frictional force when lifting a chain due to damage does not drop below about 60% of the maximum frictional force.

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  • Escalators And Moving Walkways (AREA)
  • Transmission Devices (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The continuous handrail (12) is advanced by means of chains (26,30) having friction blocks (44) and driven by an electric motor and main shaft (14) through a belt (20) and pulley (18). Contact is maintained by sprung pressure pads (38,40).

Description

Die Erfindung betrifft eine Fahrtreppe oder einen Fahrsteig, gemäß dem Oberbegriff von Anspruch 1.The invention relates to an escalator or moving walk, according to the preamble of claim 1.

Handläufe von Fahrtreppen und Fahrsteigen werden üblicherweise im Bereich des unteren Handlauftrums, also beim Handlaufrücklauf, angetrieben. Es ist bekannt, den Handlauf über ein Antriebsrad laufen zu lassen, und die Handlaufspannung über ein Gegenrad einzustellen. Durch den relativ großen Durchmesser des Antriebsrads, aber auch des Gegenrads, soll die Walk- und Biegearbeit so weit wie möglich reduziert werden, so daß der Handlauf sich durch die Bewegung möglichst wenig erwärmt.Handrails from escalators and moving walks are common in the area of the lower handrail run, i.e. with the handrail return, driven. It is known to use the handrail via a drive wheel to let run, and the handrail tension over one Adjust the counter wheel. Due to the relatively large diameter the drive wheel, but also the counter wheel, the walk and Bending work can be reduced as much as possible so that the Handrail warms as little as possible due to the movement.

Der Wärmeausdehnungskoeffizient von Elastomeren ist regelmäßig relativ groß. Durch die Erwärmung des Handlaufs verschlechtert sich daher die Führung des Handlaufs auf der Balustrade und im Umlenkbereich, so daß man stets bestrebt ist, den Handlauf so wenig wie möglich zu erwärmen. Andererseits ist es natürlich wichtig, daß der Handlauf mit der Fahrtreppe oder dem Fahrsteig synchron angetrieben wird, also im Antriebsbereich kein versehentliches Durchrutschen erfolgt. Trotz der recht großen Walkarbeit ist es beispielsweise gemäß der EP-A-530 946 vorgesehen, den Handlauf mehrfach umzulenken, um so eine sichere Führung und auch einen Längenausgleich zu gewährleisten.The coefficient of thermal expansion of elastomers is regular relatively large. Worsened by the warming of the handrail therefore the guidance of the handrail on the balustrade and in Deflection area, so that one always strives for the handrail to heat as little as possible. On the other hand, it is natural important that the handrail with the escalator or moving walk is driven synchronously, i.e. none in the drive area accidental slipping occurs. Despite the quite large For example, flexing is provided according to EP-A-530 946, redirect the handrail several times to ensure a safe one To ensure leadership and also a length compensation.

Es sind auch Lösungen bekannt geworden, bei denen der Handlauf für den Antrieb nicht umgelenkt wird. Beispielsweise ist aus der EP-A2-640 553 ein Handlaufantrieb bekannt, bei dem der Handlauf zwischen zwei zueinander benachbarten Reibrädern und entsprechenden Gegen-Druckrollen geführt ist und angetrieben wird. Bei dieser Lösung wird der Handlauf recht starken punktuellen Drücken ausgesetzt, so daß auch insofern eine beträchtliche Walkarbeit überwunden werden muß, die zur Erwärmung des Handlaufs führt.Solutions have also become known in which the handrail is not redirected for the drive. For example, is off EP-A2-640 553 discloses a handrail drive in which the Handrail between two adjacent friction wheels and corresponding counter-pressure rollers is guided and driven becomes. With this solution, the handrail becomes very strong punctual Exposed to pressure, so that in this respect a considerable Milling work must be overcome, which leads to warming of the handrail.

Ferner ist es bereits vorgeschlagen worden, den Handlauf über einen Riemen anzutreiben, der entlang des Handlaufs geführt ist und über Mitlaufrollen an den Handlauf angedrückt wird. Diese Lösung soll zwar eine recht gleichmäßige Druckverteilung bewirken. Der Riemen muß für den wirksamen Antrieb jedoch recht stark unter Spannung gesetzt werden, und muß daher aus einem recht festen Material bestehen. Ein Riemen beispielsweise aus Gummi wäre nicht geeignet. Andererseits muß für die aus glasfaserverstärktem Kunststoff bestehenden Bänder ein recht hoher Preßdruck vorgesehen sein, damit der gegenüber Gummi geringere Haftreibungskoeffizient derartiger Materialien kompensiert werden kann.Furthermore, it has already been suggested about the handrail to drive a belt that runs along the handrail and is pressed onto the handrail via idler rollers. This solution is said to have a fairly even pressure distribution cause. However, the belt must be used for effective drive be put under a lot of tension and must therefore be switched off a fairly solid material. A strap, for example rubber would not be suitable. On the other hand, must for that glass fiber reinforced plastic existing tapes a right high pressure can be provided, so that the rubber lower coefficient of static friction of such materials can be compensated.

Ein weiteres Problem des Riemens oder Gürtels ist die Verschmutzungs- und Beschädigungsempfindlichkeit. Wenn der Handlauf entsprechende Unebenheiten aufweist, wird der Riemen hierdurch besonders belastet und im Dauerbetrieb auch beschädigt, und zwar sowohl bei Kerben als auch bei Vorsprüngen des Handlaufs. Daher hat sich dieser vorgeschlagene Riemenantrieb nicht durchgesetzt; vielmehr wird häufig trotz der erforderlichen Walkarbeit ein nicht linearer Antrieb vorgesehen.Another problem with the belt or belt is the contamination and sensitivity to damage. If the handrail the belt has corresponding unevenness thereby particularly stressed and also damaged in continuous operation, both with notches and protrusions of the Handrail. Hence this proposed belt drive not enforced; rather, it is often despite the necessary A non-linear drive is provided.

Ferner sind weitere Konstruktionen bekannt geworden, die in der praktischen Realisierung allerdings bislang zu wünschen übrig lassen. So ist es aus der DE-OS 198 37 916 bekannt geworden, den Handlaufantrieb als elektrischen Linearantrieb auszubilden. Hierzu muß der Handlauf selbst aber mit elektromagnetischen Elementen versehen sein, beispielsweise Permanentmagneten. Andererseits ist es notwendig, den Handlauf endseitig umzulenken, so daß stets eine innere besondere Walkarbeit zwischen den steifen Permanentmagneten und dem elastischen Handlauf entsteht, die auch verschleißträchtig ist. Furthermore, other constructions have become known, which in the practical implementation, however, has so far been desired leave. So it is known from DE-OS 198 37 916 become the handrail drive as an electric linear drive train. To do this, the handrail itself must be electromagnetic Be provided elements, for example permanent magnets. On the other hand, it is necessary to use the handrail redirect at the ends, so that always an inner special Flexing work between the rigid permanent magnets and the elastic handrail arises, which is also prone to wear is.

Ferner ist es bekannt geworden, über zwei oder mehrere Rollen, die mit gegenüberliegenden Druckrollen gepaart sind, einen zuverlässigen Antrieb des Handlaufs anzustreben. Bei dieser Lösung treten jedoch vergleichsweise hohe Flächenpressungen auf, die eine entsprechende Walkarbeit bedeuten, wenn eine einen zuverlässigen Antrieb sicherstellende Reibung bereitgestellt wird.Furthermore, it has become known about two or more roles, which are paired with opposing pressure rollers, one to strive for reliable drive of the handrail. At this The solution, however, comes from comparatively high surface pressures which means a corresponding flexing work, if one a reliable drive ensuring friction becomes.

GB 10 86 930 offenbart eine Fahrtreppe oder Fahrsteig gemäß dem Oberbegriff von Anspruch 1.GB 10 86 930 discloses an escalator or moving walk according to the preamble of claim 1.

Daher liegt der Erfindung die Aufgabe zugründe, eine Fahrtreppe oder einen Fahrsteig gemäß dem Oberbegriff von Anspruch 1 zu schaffen, die die Lebensdauer des Handlaufs verlängert, eine geringere Walk- und Biegearbeit und damit geringere Energieverluste bereitstellt, aber dennoch einen zuverlässigen und mit dem Fahrtreppen- oder Fahrsteigantrieb leicht synchronisierbaren Handlaufantrieb gewährleistet.The invention is therefore based on the object of an escalator or a moving walk according to the preamble of claim 1 that extends the life of the handrail, less flexing and bending work and thus less Provides energy losses, but still a reliable one and easily with the escalator or moving walk drive synchronized handrail drive guaranteed.

Diese Aufgabe wird erfindungsgemäß durch Anspruch 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.This object is achieved by claim 1. Advantageous further developments result from the subclaims.

Ein wesentlicher Vorteil der Erfindung liegt in der Verringerung der Gesamtbreite der Fahrtreppe/des Fahrsteigs, da der Handlauf nicht mehr neben, sondern über dem Stufen- bzw. Palettenband angeordnet werden kann.A major advantage of the invention is the reduction the total width of the escalator / moving walk since the Handrail no longer next to, but above the step or Pallet belt can be arranged.

Erfindungsgemäß besonders günstig ist es, daß die erfindungsgemäß umlaufende Kette, vorzugsweise eine Rollenkette, in beliebiger geeigneter Länge ausgebildet sein kann, so daß die zu übertragende Reibungskraft an die räumlichen Verhältnisse angepaßt werden kann, ohne daß ein seitliches Überragen und damit Platzprobleme zu befürchten wären. Insbesondere wenn als Reibungsübertragungselemente Reibungsblöcke zur Anwendung gelangen, ist die Kraftübertragung intensiv, aber dennoch handlaufschonend, langlebig und doch preisgünstig herzustellen. Mit den erfindungsgemäßen Maßnahmen gelingt es in überraschend einfacher Weise, die Funktion der Kraftübertragung im Bereich der Antriebselemente von der Funktion der Bereitstellung der erforderlichen Reibung zu trennen. Auf diese Weise läßt sich nicht nur ein weiches die Reibungskraft übertragendes Element wie ein Reibungsblock einsetzen, sondern auch eine sehr verschleißfeste Kette, die eine gegenüber dem Handlauf deutlich geringere Dehnbarkeit aufweist.According to the invention it is particularly favorable that the invention revolving chain, preferably a roller chain, in any suitable length can be formed so that the frictional force to be transferred to the spatial conditions can be adjusted without a lateral protrusion and so that space problems would be feared. Especially when as Friction transmission elements friction blocks for use power transmission is intense, but still gentle on the handrail, durable and yet inexpensive manufacture. The measures according to the invention succeed in a surprisingly simple way, the function of the Power transmission in the area of the drive elements from the Function of providing the necessary friction too separate. In this way, not only can the soft Friction force transmitting element like a friction block use, but also a very wear-resistant chain that a significantly lower stretch than the handrail having.

Erfindungsgemäß kann der Antrieb dann so erfolgen, daß die Reibungsblöcke an den Handlauf angedrückt werden und sich für die Erzeugung des Vortriebs in ganz geringem Umfang in eine Parallelepipedform verformen. Besonders günstig ist es, daß der Druck auf den Handlauf bei jedem Reibungsblock gleichmäßig erfolgt, so daß auch die Flächenpressung für den Handlauf besonders gering ist und auch keine Walkspitzen aufweist. Hierdurch ist gewährleistet, daß die Lebensdauer des Handlaufs durch den Antrieb nicht verringert wird.According to the invention, the drive can then take place so that the Friction blocks are pressed against the handrail and stand up for the generation of propulsion to a very small extent in one Deform the parallelepiped shape. It is particularly favorable that the pressure on the handrail is even with each friction block takes place, so that the surface pressure for the handrail is particularly low and has no whale tips. This ensures that the life of the handrail is not reduced by the drive.

Die Reibungsblöcke wirken auf den Handlauf wie abrieblose Radiergummis und zeichnen sich insofern ebenfalls durch eine gute Haltbarkeit und gleichzeitig eine gute Haftreibung aus.The friction blocks act like no wear on the handrail Erasers and are therefore also characterized by a good durability and good static friction at the same time.

Wesentlich ist jedenfalls die sichere Verankerung in je einem Kettenglied, wobei der Andruck der Reibungselemente auf den Handlauf bevorzugt über eine Druckschiene bereitgestellt werden kann, die von hinten auf die Rollen der Kette drückt und beispielsweise die Reibungsblöcke an den Handlauf andrückt.In any case, secure anchoring in one is essential Chain link, the pressure of the friction elements on the Handrail preferably provided via a pressure rail that presses on the rollers of the chain from behind and for example the friction blocks on the handrail presses.

Auch hier versteht es sich, daß die Druckschiene eine beliebige geeignete Form haben kann, die einen kontinuierlichen und gleichmäßigen Andruck zwischen Handlauf und Reibungselementen sicherstellt. Die Druckschiene verhindert insbesondere, daß die Kette sich durch den Andruck an den Handlauf durchbiegt und dann Druckspitzen im Bereich der Kettenräder erzeugt werden.Again, it goes without saying that the pressure rail is any suitable form that can be continuous and even pressure between handrail and friction elements ensures. The pressure rail in particular prevents the chain bends due to the pressure on the handrail and then generated pressure peaks in the area of the sprockets become.

In einer modifizierten Ausgestaltung sind zwei einander gegenüberliegende Reibungselemente vorgesehen, die in geeigneter Weise ausgebildet sind. Die beiden Ketten können in ihrer räumlichen Anordnung auch etwas zueinander versetzt sein.In a modified embodiment, two are opposite one another Friction elements provided in a suitable Are trained. The two chains can be in their spatial arrangement also be slightly offset from each other.

Weitere Vorteile, Einzelheiten und Merkmale ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung.Further advantages, details and features result from the following description of an embodiment based on the drawing.

Die einzige Figur der Zeichnung zeigt eine schematische Darstellung eines Details einer erfindungsgemäßen Fahrtreppe oder eines erfindungsgemäßen Fahrsteigs, unter Darstellung des Handlaufs und der Reibungselemente.The only figure in the drawing shows a schematic Representation of a detail of an escalator according to the invention or a moving walk according to the invention, showing the Handrail and the friction elements.

In der Figur ist eine Fahrtreppe 10 in einer Einzelheit dargestellt, nämlich unter Darstellung des Antriebs für einen Handlauf 12. Die Fahrtreppe 10 ist über eine Hauptwelle 14 angetrieben, die Teil eines Antriebsstrangs 16 ist. Der Antriebsstrang 16 weist ferner eine Riemenscheibe 18 auf, die über einen Riemen 20 ein Kettenrad 22 antreibt. In einer modifizierten Ausgestaltung ist die Kraftübertragung zwischen dem Kettenrad 22 und der Hauptwelle 14 über eine weitere Kette vorgesehen, so daß anstelle der Riemenscheibe 18 eine Kettenscheibe 18 und anstelle des Riemens 20 eine Kette 20 eingesetzt wird.In the figure, an escalator 10 is shown in one detail, namely, showing the drive for a handrail 12. The escalator 10 is driven by a main shaft 14, which is part of a drive train 16. The drivetrain 16 also has a pulley 18 which over a belt 20 drives a sprocket 22. In a modified Design is the power transmission between the Sprocket 22 and the main shaft 14 via another chain provided so that a chain pulley instead of the pulley 18 18 and a chain 20 is used instead of the belt 20 becomes.

Zwischen dem Kettenrad 22 und einem weiteren Kettenrad 24 ist eine Kette 26 umlaufend gelagert. Die Kette ist Teil eines Reibungselements 28, das im folgenden im einzelnen beschrieben wird. Die Kette 26 ist so ausgebildet, daß sie sich mit ihren Kettengliedern an den Handlauf 12 in geeigneter Weise anlehnt. Der Antrieb des Handlaufs erfolgt im Bereich des unteren Trumes des Handlaufs 12, so daß der Handlauf 12 bei einer liegenden C-Form nach oben offen ist und die Kette 22 in den Handlauf 12 hineinragt.Is between the sprocket 22 and another sprocket 24 a chain 26 stored all around. The chain is part of one Friction element 28, which is described in detail below becomes. The chain 26 is designed so that it with their Chain links leaned against the handrail 12 in a suitable manner. The handrail is driven in the lower area Trumes of the handrail 12, so that the handrail 12 at one lying C-shape is open at the top and the chain 22 in the Handrail 12 protrudes.

Der Kette 22 bezogen auf den Handlauf 12 gegenüberliegend ist eine weitere Kette 30 vorgesehen, die einen entsprechenden Aufbau aufweist. Auch die Kette 30 ist zwischen zwei Kettenrädern 32 und 34 aufgespannt, wobei das Kettenrad 34 wahlweise von dem Riemen 20 umschlungen und damit angetrieben sein kann. Diese Ausgestaltung ist mit der gestrichelten Linie des Riemens 20 angedeutet.The chain 22 is opposite to the handrail 12 a further chain 30 is provided which has a corresponding Has structure. The chain 30 is also between two sprockets 32 and 34 clamped, the sprocket 34 optionally can be wrapped around the belt 20 and driven. This configuration is with the dashed line of the belt 20 indicated.

Die Kette 30 ist Teil eines weiteren Reibungselements 36, so daß der Handlauf 12 zwischen den Reibungselementen 28 und 36 eingespannt ist. Zu beiden Reibungselementen gehört je eine Druckschiene 38 bzw. 40, die die Ketten 26 bzw. 30 mit einer bevorzugt einstellbaren Federkraft F an den Handlauf andrückt.The chain 30 is part of a further friction element 36, see above that the handrail 12 between the friction elements 28 and 36th is clamped. There is one for each friction element Pressure rail 38 and 40, the chains 26 and 30 with a preferably adjustable spring force F presses on the handrail.

Jede Kette 26 und 30 weist eine Vielzahl von gleichförmigen und miteinander verbundenen Kettengliedern auf, wobei zwei Kettenglieder 42 im Bereich der Kette 30 dargestellt und im Bereich der Kette 26 gestrichelt angedeutet sind. Ein Kettenglied 32 ist mit einem Reibungsblock 44 versehen, der fest auf ihm angebracht ist und sich im wesentlichen über seine gesamte Länge erstreckt. Der Reibungsblock 44 weist eine freie Oberfläche auf, die dem Handlauf 12 zugewandt ist und liegt an ihm vollständig an. Each chain 26 and 30 has a plurality of uniform ones and interconnected chain links, two Chain links 42 shown in the area of chain 30 and in Area of the chain 26 are indicated by dashed lines. A chain link 32 is provided with a friction block 44, which is firmly on attached to it and covering essentially its entire Length extends. The friction block 44 has a free surface on, which faces the handrail 12 and lies on it completely.

Der Abstand zwischen den Reibungsblöcken 44 ist erheblich geringer als die Länge jedes Reibungsblocks 44, so daß die Anlagelänge zwischen Handlauf und Kette über deutlich mehr als die Hälfte des Abstands zwischen den Kettenrädern 22 und 24 vorliegt.The distance between the friction blocks 44 is considerable less than the length of each friction block 44 so that the System length between the handrail and chain over significantly more than half the distance between the sprockets 22 and 24 is present.

Die Reibungsblöcke 44 sind in geeigneter Weise ausgestaltet und bestehen aus einem nach der Art von Fahrrad-Bremsgummis eingefaßten Block aus einem Elastomer, das zumindest etwas weicher als das Material für den Handlauf 12 ist. Es versteht sich, daß beliebige geeignete Materialien verwendet werden können, deren Haftreibungskoeffizient groß genug ist. Nachdem eine flächige Anlage gewährleistet ist, besteht im Bereich der Reibungsblöcke auch Unempfindlichkeit gegenüber etwaigen Unebenheiten des Handlaufs, wie sie beispielsweise durch Beschädigungen des Handlaufs entstehen können.The friction blocks 44 are designed in a suitable manner and consist of a type of bicycle brake pads edged block of an elastomer that is at least something is softer than the material for the handrail 12. It understands know that any suitable materials are used can, whose coefficient of static friction is large enough. After this a flat area is guaranteed exists in the area of Friction blocks also insensitivity to any Bumps in the handrail, such as those caused by Damage to the handrail can occur.

Bevorzugt sind beide Ketten 26 und 30 angetrieben, so daß auch beim beschädigungsbedingten Abheben einer Kette die Reibungskraft nicht unter etwa 60 % der maximalen Reibungskraft sinkt.Both chains 26 and 30 are preferably driven, so that also the frictional force when lifting a chain due to damage does not drop below about 60% of the maximum frictional force.

Claims (16)

  1. Escalator or moving pavement (10) with a hand rail (12), which is propelled via a drive cord (16), preferably by means of an electric motor, where the drive cord (16) comprises a friction element (28), by means of which driving power is transferable to the hand rail (12), where the friction element (28) comprises at least one circulating chain (20) with friction transmission devices and the friction transmission devices are designed as friction blocks (44), characterised in that the distance between the friction blocks (44) is substantially less than the length of each friction block (44).
  2. Escalator or moving pavement according to one of the preceding claims, characterised in that two friction elements (28, 36) are provided with circulating chains (26, 30) opposite each other, between which the hand rail (12) extends.
  3. Escalator or moving pavement according to one of the preceding claims, characterised in that the hand rail (12) comprises the form of a lying C or E and one friction element (28) rests on the hand rail from below and one friction element (36) rests on the hand rail from above.
  4. Escalator or moving pavement according to one of the preceding claims, characterised in that the circulating chain or the circulating chains (26, 30) comprise friction blocks (44) which are preferably made of flexibly ductile material at each chain link (42).
  5. Escalator or moving pavement according to one of the preceding claims, characterised in that the friction blocks (44) made of flexibly ductile material deform substantially more strongly than the hand rail (12), when resting on the hand rail (12), preferably by more than a power of ten.
  6. Escalator or moving pavement according to one of the preceding claims, characterised in that friction blocks (44). attached onto the chains (26, 30) are softer than the hand rail (12) and are preferably made of an elastomer.
  7. Escalator or moving pavement according to one of the preceding claims, characterised in that a link of the circulating chain turned towards the hand rail (12) is backed with a pressure rail (38, 40), by means of which it can be pressed onto the hand rail (12).
  8. Escalator or moving pavement according to claim 7, characterised in that the pressure rail (38, 40) extends essentially along the entire free length of the chain link.
  9. Escalator or moving pavement according to one of the preceding claims, characterised in that each circulating chain (26, 30) is stretched between two chain wheels (22, 24 and/or 32, 34), of which one is propelled.
  10. Escalator or moving pavement according to one of the preceding claims, characterised in that one circulating chain is propelled in the drive cord (16) and the other circulating chain runs along free.
  11. Escalator or moving pavement according to one of claims 1 to 9, characterised in that both circulating chains (26, 30) are propelled, where the propulsion occurs preferably by a roller chain or also an electric motor and catches, which engage in the parts of the step belt.
  12. Escalator or moving pavement according to one of the preceding claims, characterised in that the drive cord (16) is connected with the main shaft of the escalator (10) or the moving pavement and the rate of motion of the hand rail (12) is synchronized with the escalator or moving pavement speed.
  13. Escalator or moving pavement according to one of the preceding claims, characterised in that the chains (26, 30) are attached within an area of the hand rail (12) extending straight.
  14. Escalator or moving pavement according to one of the preceding claims, characterised in that the chains (26, 30) comprise an effective friction length of twice to twenty times, preferably approximately eight times, the hand rail height.
  15. Escalator or moving pavement according to one of the preceding claims, characterised in that the circulating chains (26, 30) are attached underneath the balustrade in the hand rail return and do not or do not substantially project laterally beyond the hand rail (12).
  16. Escalator or moving pavement according to one of the preceding claims, characterised in that the friction blocks (44), which are turned towards the inside of the hand rail (12), project into the hand rail (12) and the back of the hand rail (12) is used as a friction surface.
EP01112918A 2000-06-21 2001-06-05 Drive for handrail Expired - Lifetime EP1167271B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20010992U DE20010992U1 (en) 2000-06-21 2000-06-21 Escalator or moving walk
DE20010992U 2000-06-21

Publications (2)

Publication Number Publication Date
EP1167271A1 EP1167271A1 (en) 2002-01-02
EP1167271B1 true EP1167271B1 (en) 2004-09-15

Family

ID=7943110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112918A Expired - Lifetime EP1167271B1 (en) 2000-06-21 2001-06-05 Drive for handrail

Country Status (5)

Country Link
EP (1) EP1167271B1 (en)
AT (1) ATE276193T1 (en)
CZ (1) CZ295378B6 (en)
DE (2) DE20010992U1 (en)
ES (1) ES2223684T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004482B4 (en) 2010-01-12 2013-01-10 Kone Corp. Device for driving a handrail

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1456402A1 (en) * 1966-04-13 1969-03-13 Rathgeber Ag Waggonfab Jos Escalator
DE3116713A1 (en) * 1981-04-28 1982-11-18 Emil Wolff, Maschinenfabrik Und Eisengiesserei Gmbh, 4300 Essen Blind-shaft winding plant
US5117960A (en) * 1991-08-15 1992-06-02 Otis Elevator Company Linear belt handrail drive

Also Published As

Publication number Publication date
CZ20012257A3 (en) 2002-04-17
DE20010992U1 (en) 2000-12-14
ES2223684T3 (en) 2005-03-01
CZ295378B6 (en) 2005-07-13
EP1167271A1 (en) 2002-01-02
DE50103596D1 (en) 2004-10-21
ATE276193T1 (en) 2004-10-15

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