EP0816278B1 - Escalator tread - Google Patents

Escalator tread Download PDF

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Publication number
EP0816278B1
EP0816278B1 EP19970108089 EP97108089A EP0816278B1 EP 0816278 B1 EP0816278 B1 EP 0816278B1 EP 19970108089 EP19970108089 EP 19970108089 EP 97108089 A EP97108089 A EP 97108089A EP 0816278 B1 EP0816278 B1 EP 0816278B1
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EP
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Prior art keywords
reinforcing
side plates
underside
bear
section
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EP19970108089
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German (de)
French (fr)
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EP0816278A1 (en
Inventor
Harald Dr. Dipl. Ing. Nusime
Wolfgang Neszmerak
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Inventio AG
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Inventio AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00Component parts of escalators or moving walkways
    • B66B23/08Carrying surfaces
    • B66B23/12Steps

Definitions

  • the present invention discloses a compact step body in Die-cast aluminum with tread, step front and side struts with guide rollers, the special requirements for a higher Breaking load limit met.
  • Step body is made of longitudinal and cross members, front plate and Footplate assembled. Guide and idlers are included screwed their pedestals to the side members.
  • JP 01197298 discloses a step body with longitudinal and Cross beams on the lightweight beams for reinforcement purposes made of aluminum below the step plate and inside the Front panel to be attached.
  • For attaching these carriers has the step body from the footprint of tread and Front plate protruding counterparts with threaded holes, which counterparts or threads already during the manufacture of the Step carrier attached or cut.
  • the invention is characterized inter alia by characterized in that as The starting product is an existing compact stage in unchanged form is used, at which points Reinforcement elements for additional longitudinal and transverse reinforcement be attached.
  • the reinforcement elements per step are a bevel profile and each a side plate with a surrounding edge, which on the Compact stage to be screwed on at points to be reinforced.
  • the reinforcing elements are non-positively on surfaces of screwed existing ribs and webs of the compact step.
  • Step body 1 denotes a step body, which in the Today's usual way is made in die-cast aluminum. With 2nd are the idlers and 3 the driver bearings. The Carrier rollers 2 are fastened to kingpin 21. The behind the driver bearings 3, the step body 1 in this view laterally protruding parts are sliding guide shoes 18.
  • the Step body 1 also has an underside 16 with a middle, longitudinal reinforcing rib 5.2 and on both Sides of the reinforcing rib 5.2 each with a certain distance further, parallel reinforcing rib 5.1.
  • a rear transverse rib 4 extends over the entire underside 16, is greatly increased in the middle part and flows into the on both sides Basis of the driver bearings 3. Adjacent to the transverse rib 4 and the bottom 16 is a stiffening profile 6 inserted and the Side struts are enclosed with side plates 7 and 8. At 12 is the tread visible in this figure only as an edge designated.
  • Fig.2 is essentially the type of attachment Reinforcing elements can be seen.
  • the one Side strut 15 enclosing side plate 8 is with the Side strut 15 firmly connected with through screws 14 and an edge of its side surface also lies on the underside 16 of the Step body 1.
  • the stiffening profile 6 is with screws 13 attached to the transverse rib 4 and lies on the transverse rib 4 with a bent back and on the bottom with his Footprint full.
  • the rear of the stiffening profile 6 points to increase the section modulus at its upper edge another bend inwards.
  • the stiffening profile 6 also has a second curved wall on the front side so that its cross-section is roughly a U-profile represents asymmetrical cross section. So before fixing of the stiffening profile 6 no milling work on the step body 1 must be made points the bottom of the Stiffening profile 6 in those places where above Casting spigot 10 on the underside 16 of the step body 1 is present are corresponding recesses 19 on. Continuous recesses 9 on the stiffening profile 6 also bridge the longitudinal ones Reinforcing ribs 5.1 and 5.2, so that their shape and Function can be left. With this arrangement and Execution of the stiffening profile 6 increases the desired Resilience of the step body 1 at its rear part of the Tread surface 12 reached.
  • Figure 3 is the contour of the side plates, here the Side plate 7, can be seen. It lies with its front edge the rear 17 of the step front 11 and with its upper edge the underside 16 of the step body 1. A three-sided Enclosure of the side strut 15 and the inside of the Step body 1 adjacent edges of the side plate 7 result in the desired reinforcement of the side part of the step body 1.
  • Figure 4 shows another important one in the previous ones Figures invisible structural detail of the side panels 7 and 8 using the example of the side plate 8.
  • the assembly of the reinforcing elements 6, 7 and 8 is so far easy than all the holes for screwing with the Step body 1 pre-punched in the reinforcing elements 6, 7 and 8 are.
  • the reinforcing elements 6, 7 and 8 serve as Drilling gauges when drilling the through and threaded holes in the Step body 1.
  • the stiffening profile 6 only has to be inserted and drilled with the cross rib 4.
  • the side plates 7 and 8 are with the welded metal ring 20 on the respective Knuckle 21 placed and then screwed in until it the bottom 16 of the tread 12 and on the rear 17 of the Step front 11 are present. This is followed by drilling the Side plates 7 and 8 with the side strut 15 and screwing or riveting with the same.
  • the screw connections can be made by using joint filling adhesive between the contact surfaces get supported.
  • the stiffening profile 6 With further folding shapes and material thicknesses of the stiffening profile 6, its section modulus can be varied within wide limits.
  • the folding geometry and the contour of the side surface are given by the type of use.
  • a variation of the load capacity can be achieved within certain limits with the choice of the material and its thickness.

Description

Die vorliegende Erfindung offenbart einen Kompaktstufenkörper in Aluminium-Druckguss mit Trittfläche, Stufenfront und Seitenstreben mit Führungsrollen, der spezielle Anforderungen an eine höhere Bruchlastgrenze erfüllt.The present invention discloses a compact step body in Die-cast aluminum with tread, step front and side struts with guide rollers, the special requirements for a higher Breaking load limit met.

Die heute weltweit verwendeten Kompaktstufen weisen bei mittig aufgebrachter Last Bruchlasten von 20 bis 25 kN auf. In einzelnen Spezialanwendungsfällen wird von entsprechenden Pflichtenheften verlangt, dass bei Kraftaufbringung an beliebiger Stelle der Trittfläche die Bruchlastgrenze bei 2,5 Tonnen liegen muss.The compact stages used worldwide today are in the middle applied load breaking loads of 20 to 25 kN. In individual Special use cases are covered by corresponding specifications requires that the force be applied at any point Tread area the breaking load limit must be 2.5 tons.

Bei Kraftaufbringung an beliebiger Stelle der Trittfläche werden mit den normalen Kompaktstufen die vorgehend erwähnten Bruchlasten nicht erreicht, weil sich hierdurch besonders hohe Kräfte im Bereich der Stufenrollenlagerung ergeben und dieser Teil der Kompaktstufe nicht für diesen Belastungsfall dimensioniert ist. Zur Erfüllung dieser Forderung müssten neue Konstruktionen für Kompaktstufen und somit neue, teure Druckgussformen geschaffen werden. Die Konsequenz dieser Lösung wären sehr hohe Kosten für kleine Stückzahlen und somit wesentlich höhere Anlagekosten für eine Fahrtreppe dieser Art.When applying force at any point on the tread with the normal compact steps the above mentioned breaking loads not reached, because this results in particularly high forces in the Area of the stepped roller bearing and this part of the Compact stage is not dimensioned for this load case. To meet this requirement, new designs for Compact stages and thus new, expensive die casting molds created become. The consequence of this solution would be very high costs for small quantities and therefore significantly higher investment costs for an escalator of this kind.

Eine weitere Lösung besteht darin, dass eine entsprechend stärkere Stufe in Verbundbauweise, also aus verschiedenen Teilen und Materialien auf verschiedene Art zusammengefügt wird.Another solution is that a correspondingly stronger one Level in composite construction, i.e. from different parts and Materials are put together in different ways.

Nebst der Treppenkonstruktion wird in der US-Patentschrift Nr. 2,570,135 eine Stufe der vorgehend genannten Art gezeigt. Der Stufenkörper ist aus Längs- und Querträgern, Frontblech und Trittplatte zusammengebaut. Führungs- und Tragrollen sind mit ihren Lagerböcken an den Längsträgern angeschraubt. In addition to the staircase construction, US Pat. No. 2,570,135 a level of the type mentioned above. The Step body is made of longitudinal and cross members, front plate and Footplate assembled. Guide and idlers are included screwed their pedestals to the side members.

Bei der Verwendung entsprechend dimensionierter Teile lässt sich im Prinzip auf diese Art eine genügend starke Trittsufe herstellen. Allerdings werden dann die Herstellkosten einer solchen Stufe so hoch, dass nach besseren Lösungen gesucht werden musste.When using appropriately dimensioned parts, basically a sufficiently strong step in this way produce. However, the manufacturing costs then become one level so high that better solutions are sought had to.

Die Schrift JP 01197298 offenbart einen Stufenkörper mit Längsund Querträgern, an den zu Verstärkungszwecken Leichtbau-Träger aus Aluminium unterhalb der Trittplatte und innerhalb der Frontplatte angebracht werden. Für die Befestigung dieser Träger weist der Stufenkörper aus der Grundfläche von Tritt- und Frontplatte herausragende Gegenstücke mit Gewindebohrungen auf, welche Gegenstücke bzw. Gewinde bereits bei der Herstellung des Stufenträgers angebracht respektive geschnitten werden. JP 01197298 discloses a step body with longitudinal and Cross beams on the lightweight beams for reinforcement purposes made of aluminum below the step plate and inside the Front panel to be attached. For attaching these carriers has the step body from the footprint of tread and Front plate protruding counterparts with threaded holes, which counterparts or threads already during the manufacture of the Step carrier attached or cut.

Es ist deshalb die Aufgabe der vorliegenden Erfindung eine Trittstufe für höhere Bruchlasten zu schaffen, die die Nachteile der vorgenannten Lösungen nicht aufweist und für welche so weit wie möglich bestehende Konstruktionen weiter verwendet werden können.It is therefore an object of the present invention To create treads for higher breaking loads that have the disadvantages does not have the aforementioned solutions and for which so far existing constructions continue to be used as possible can.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichnete und beispielhaft in Beschreibung und Zeichnung dargestellte Erfindung gelöst.This object is characterized by the in claim 1 and invention shown by way of example in the description and drawing solved.

Die Erfindung zeichnet sich u.a. dadurch aus, dass als Ausgangsprodukt eine vorhandene Kompaktstufe in unveränderter Form verwendet wird, an welche an entsprechenden Stellen Verstäkungselemente für zusätzliche Längs- und Querversteifung befestigt werden.The invention is characterized inter alia by characterized in that as The starting product is an existing compact stage in unchanged form is used, at which points Reinforcement elements for additional longitudinal and transverse reinforcement be attached.

Vorteilhafte Weiterbildungen und Verbesserungen sind in den Unteransprüchen aufgeführt.Advantageous further developments and improvements are in the Subclaims listed.

Die Verstärkungselemente pro Stufe sind ein Abkantprofil und je eine Seitenplatte mit umgreifendem Rand, welche an der Kompaktstufe an zu verstärkenden Stellen angeschraubt werden.The reinforcement elements per step are a bevel profile and each a side plate with a surrounding edge, which on the Compact stage to be screwed on at points to be reinforced.

Die Verstärkungselemente sind kraftschlüssig an Flächen von bestehenden Rippen und Stegen der Kompaktstufe angeschraubt.The reinforcing elements are non-positively on surfaces of screwed existing ribs and webs of the compact step.

An der bestehenden Kompaktstufe müssen ausser dem Bohren von wenigen Löchern und dem Schneiden von ein paar Gewinden keine weiteren Anpassarbeiten vorgenommen werden.On the existing compact stage, in addition to drilling few holes and cutting a few threads none further adjustments are made.

Insbesondere bleiben die vorhandenen Verstärkungsrippen in Ihrer ursprünglichen Form und Funktion bestehen.In particular, the existing reinforcement ribs remain in yours original form and function.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels näher erläutert und in den Zeichnungen dargestellt, es zeigen:

  • Fig.1 eine Gesamtansicht von unten einer vestärkten Stufe,
  • Fig.2 Einzelheiten der Art der Verstärkungselemente und deren Befestigung,
  • Fig.3 ein Ansicht von unten seitlich mit Einzelheiten der Seitenplatten und
  • Fig.4 eine konstruktive Einzelheit der Seitenplatte.
  • The invention is explained in more detail below using an exemplary embodiment and illustrated in the drawings, in which:
  • 1 shows an overall view from below of a reinforced step,
  • 2 details of the type of reinforcing elements and their attachment,
  • 3 shows a bottom view from the side with details of the side plates and
  • 4 shows a structural detail of the side plate.
  • In der Fig.1 ist mit 1 ein Stufenkörper bezeichnet, der in der heute üblichen Art in Aluminium-Druckguss hergestellt wird. Mit 2 sind die Tragrollen und mit 3 die Mitnehmerlager bezeichnet. Die Tragrollen 2 sind auf Achsschenkelbolzen 21 befestigt. Die hinter den Mitnehmerlagern 3 den Stufenkörper 1 in dieser Ansicht seitlich überragenden Teile sind Gleitführungsschuhe 18. Der Stufenkörper 1 weist ferner eine Unterseite 16 mit einer mittleren, längsverlaufenden Verstärkungsrippe 5.2 und auf beiden Seiten der Verstärkungsrippe 5.2 mit einigem Abstand je eine weitere, parallel verlaufende Verstärkungsrippe 5.1 auf. Eine hintere Querrippe 4 erstreckt sich über die ganze Unterseite 16, ist im mittleren Teil stark erhöht und mündet beidseitig in die Basis der Mitnehmerlager 3. Anliegend an die Querrippe 4 und an die Unterseite 16 ist ein Versteifungsprofil 6 eingefügt und die Seitenstreben sind mit Seitenplatten 7 und 8 umschlossen. Mit 12 ist die in dieser Figur nur als Rand sichtbare Trittfläche bezeichnet.In Figure 1, 1 denotes a step body, which in the Today's usual way is made in die-cast aluminum. With 2nd are the idlers and 3 the driver bearings. The Carrier rollers 2 are fastened to kingpin 21. The behind the driver bearings 3, the step body 1 in this view laterally protruding parts are sliding guide shoes 18. The Step body 1 also has an underside 16 with a middle, longitudinal reinforcing rib 5.2 and on both Sides of the reinforcing rib 5.2 each with a certain distance further, parallel reinforcing rib 5.1. A rear transverse rib 4 extends over the entire underside 16, is greatly increased in the middle part and flows into the on both sides Basis of the driver bearings 3. Adjacent to the transverse rib 4 and the bottom 16 is a stiffening profile 6 inserted and the Side struts are enclosed with side plates 7 and 8. At 12 is the tread visible in this figure only as an edge designated.

    In der Fig.2 ist im wesentlichen die Befestigungsart der Verstärkungselemente ersichtlich. Am unteren Bildrand ist zudem noch die Frontfläche 11 des Stufenkörpers 1 sichtbar. Die, eine Seitenstrebe 15 umschliessende Seitenplatte 8 ist mit der Seitenstrebe 15 mit durchgehenden Schrauben 14 fest verbunden und ein Rand ihrer Seitenfläche liegt ferner an der Unterseite 16 des Stufenkörpers 1 auf. Das Versteifungsprofil 6 ist mit Schrauben 13 an der Querrippe 4 befestigt und liegt auf der Querrippe 4 mit einer aufgebogenen Hinterseite und auf der Unterseite mit seiner Grundfläche satt an. Die Hinterseite des Versteifungsprofils 6 weist zur Erhöhung des Widerstandsmomentes an seinem oberen Rand eine weitere Biegung nach innen auf. Das Versteifungsprofil 6 weist ferner auf der vorderen Seite eine zweite aufgebogene Wand auf, sodass dessen Querschnitt in etwa ein U-Profil mit unsymmetrischem Querschnitt darstellt. Damit vor der Befestigung des Versteifungsprofils 6 keine Fräsarbeiten am Stufenkörper 1 gemacht werden müssen, weist die Unterseite des Versteifungsprofils 6 an jenen Stellen wo vorstehende Eingusszapfen 10 an der Unteseite 16 des Stufenkörpers 1 vorhanden sind entsprechende Ausnehmungen 19 auf. Durchgehende Ausnehmungen 9 am Versteifungsprofil 6 überbrücken auch die längs angeordneten Verstärkungsrippen 5.1 und 5.2, so dass diese in ihrer Form und Funktion belassen werden können. Mit dieser Anordnung und Ausführung des Versteifungsprofils 6 wird die erwünschte erhöhte Belastbarkeit des Stufenkörpers 1 an seiner hinteren Partie der Trittfläche 12 erreicht.In Fig.2 is essentially the type of attachment Reinforcing elements can be seen. At the bottom of the picture is also the front surface 11 of the step body 1 is still visible. The one Side strut 15 enclosing side plate 8 is with the Side strut 15 firmly connected with through screws 14 and an edge of its side surface also lies on the underside 16 of the Step body 1. The stiffening profile 6 is with screws 13 attached to the transverse rib 4 and lies on the transverse rib 4 with a bent back and on the bottom with his Footprint full. The rear of the stiffening profile 6 points to increase the section modulus at its upper edge another bend inwards. The stiffening profile 6 also has a second curved wall on the front side so that its cross-section is roughly a U-profile represents asymmetrical cross section. So before fixing of the stiffening profile 6 no milling work on the step body 1 must be made points the bottom of the Stiffening profile 6 in those places where above Casting spigot 10 on the underside 16 of the step body 1 is present are corresponding recesses 19 on. Continuous recesses 9 on the stiffening profile 6 also bridge the longitudinal ones Reinforcing ribs 5.1 and 5.2, so that their shape and Function can be left. With this arrangement and Execution of the stiffening profile 6 increases the desired Resilience of the step body 1 at its rear part of the Tread surface 12 reached.

    In der Fig.3 ist speziell die Kontur der Seitenplatten, hier der Seitenplatte 7, ersichtlich. Mit ihrem vorderen Rand liegt sie an der Hinterseite 17 der Stufenfront 11 und mit ihrem oberen Rand an der Unterseite 16 des Stufenkörpers 1 an. Eine dreiseitige Umschliessung der Seitenstrebe 15 und die an den Innenseiten des Stufenkörpers 1 anliegenden Ränder der Seitenplatte 7 ergeben die erwünschte Verstärkung der Seitenpartie des Stufenkörpers 1.In Figure 3 is the contour of the side plates, here the Side plate 7, can be seen. It lies with its front edge the rear 17 of the step front 11 and with its upper edge the underside 16 of the step body 1. A three-sided Enclosure of the side strut 15 and the inside of the Step body 1 adjacent edges of the side plate 7 result in the desired reinforcement of the side part of the step body 1.

    Die Fig.4 zeigt noch eine weitere wichtige, in den vorhergehenden Figuren nicht sichtbare konstruktive Einzelheit der Seitenplatten 7 und 8 am Beispiel der Seitenplatte 8. An der Seitenplatte 8 ist an ihrer Ecke im Bereich des Achsschenkelbolzens 21 ein den Achsschenkelbolzen 21 umschliessender Metallring 20 angeschweisst. Damit wird eine durchgehende Verstärkung der Seitenstrebe 15 vom Achsschenkelbolzen 21 bis an die Unterseite 16 der Trittfläche 12 erreicht.Figure 4 shows another important one in the previous ones Figures invisible structural detail of the side panels 7 and 8 using the example of the side plate 8. There is 8 on the side plate at its corner in the area of the kingpin 21 a Knuckle 21 enclosing metal ring 20 welded. This is a continuous reinforcement of the side strut 15 from Kingpin 21 to the underside 16 of the tread 12 reached.

    Die mit den Figuren beschriebene Verstärkung eines Stufenkörpers 1 für höhere Bruchlasten ergibt mit vertretbarem Aufwand einen stärkeren Stufenkörper 1 für erhöhte Ansprüche. Somit werden mit einem Basis-Typ und drei Verstärkungselementen 6, 7 und 8 zwei verschiedenen Stufentypen geschaffen. Die Nachrüstung mit den Verstärkungselementen 6, 7 und 8 nimmt pro Stufenkörper 1 nur wenige Minuten in Anspruch und die Verstärkungselemente 6, 7 und 8 selbst können kostengünstig als Massenteile vorfabriziert werden.The reinforcement of a step body 1 described with the figures for higher breaking loads results in a reasonable effort stronger step body 1 for increased demands. Thus with one basic type and three reinforcing elements 6, 7 and 8 two different stage types created. The retrofit with the Reinforcing elements 6, 7 and 8 only take 1 per step body minutes and the reinforcing elements 6, 7 and 8 themselves can be prefabricated inexpensively as mass parts.

    Die Montage der Verstärkungselemente 6, 7 und 8 ist insofern einfach, als alle Löcher für die Verschraubung mit dem Stufenkörper 1 in den Verstärkungselementen 6, 7 und 8 vorgestanzt sind. Somit dienen die Verstärkungselemente 6, 7 und 8 als Bohrlehren beim Bohren der Durchgangs- und Gewindelöcher im Stufenkörper 1. So muss das Versteifungsprofil 6 nur eingelegt und mit der Querrippe 4 verbohrt werden. Die Seitenplatten 7 und 8 werden mit dem angeschweissten Metallring 20 auf den jeweiligen Achsschenkelbolzen 21 aufgesetzt und dann eingedreht bis diese an der Unterseite 16 der Trittfläche 12 und an der Hinterseite 17 der Stufenfront 11 anliegen. Darauf erfolgt das Verbohren der Seitenplatten 7 und 8 mit der Seitenstrebe 15 und das Verschrauben oder Vernieten mit derselben.The assembly of the reinforcing elements 6, 7 and 8 is so far easy than all the holes for screwing with the Step body 1 pre-punched in the reinforcing elements 6, 7 and 8 are. Thus, the reinforcing elements 6, 7 and 8 serve as Drilling gauges when drilling the through and threaded holes in the Step body 1. The stiffening profile 6 only has to be inserted and drilled with the cross rib 4. The side plates 7 and 8 are with the welded metal ring 20 on the respective Knuckle 21 placed and then screwed in until it the bottom 16 of the tread 12 and on the rear 17 of the Step front 11 are present. This is followed by drilling the Side plates 7 and 8 with the side strut 15 and screwing or riveting with the same.

    Als Material für die Verstärkungselemente 6, 7 und 8 wird vorteilhaft rostfreies oder korrosionsgeschütztes Metallblech verwendet. Die Schraubverbindungen können durch Anwendung von fugenfüllendem Kleber zwischen den Kontaktflächen zusätzlich unterstützt werden.As a material for the reinforcing elements 6, 7 and 8 advantageous rustproof or corrosion-protected metal sheet used. The screw connections can be made by using joint filling adhesive between the contact surfaces get supported.

    Mit weiteren Abkantformen und Materialdicken des Versteifungsprofils 6 kann dessen Widerstandmoment in weiten Grenzen variiert werden.
    Bei den Seitenblechen 7 und 8 ist die Abkantgeometrie und die Kontur der Seitenfläche durch die Einsatzart gegeben. Eine Variation der Belastbarkeit kann mit der Wahl des Materials und dessen Dicke in gewissen Grenzen erreicht werden.
    With further folding shapes and material thicknesses of the stiffening profile 6, its section modulus can be varied within wide limits.
    In the case of the side plates 7 and 8, the folding geometry and the contour of the side surface are given by the type of use. A variation of the load capacity can be achieved within certain limits with the choice of the material and its thickness.

    Anstelle von Schraubverbindungen für die Befestigung der Verstärkungselemente 6, 7 und 8 können auch Niettechniken angewendet werden. Instead of screw connections for fastening the Reinforcing elements 6, 7 and 8 can also use riveting techniques be applied.

    Teilelisteparts list

    11
    Stufenkörperstep body
    22
    Führungsrollenguide rollers
    33
    Mitnehmerlagerdriver bearing
    44
    Querrippetransverse rib
    5.15.1
    Längsrippe seitlichLongitudinal rib on the side
    5.25.2
    Längsrippe mittigLongitudinal rib in the middle
    66
    Versteifungsprofilstiffening profile
    77
    Seitenplatte linksLeft side panel
    88th
    Seitenplatte rechtsRight side panel
    99
    Ausnehmungrecess
    1010
    Einguss-ZapfenSprue pin-
    1111
    Stufenfrontstep front
    1212
    Trittflächetread
    1313
    Schraubenscrew
    1414
    Schraubenscrew
    1515
    Seitenstrebeside strut
    1616
    Unterseite der Trittfläche 12Underside of the step surface 12
    1717
    Hinterseite der Stufenfront 11Rear of the step front 11
    1818
    Gleitführungsschuhsliding guide
    1919
    Aussparungenrecesses
    2020
    Metallringmetal ring
    2121
    Achsschenkelbolzenkingpin

    Claims (10)

    1. Escalator step with a compact step body (1) in aluminium die-casting, which comprises a tread surface (12), a step front (11) and side struts (15) with guide rollers (2), with a stiffening section (6) fastened to bear in transverse direction at the underside (16) of the tread surface (12), and two reinforcing side plates (7, 8) fastened to bear in longitudinal direction at the side struts (15).
    2. Escalator step according to claim 1, characterised in that the edges of the side plates (7, 8) bear against the underside (16) of the tread surface (12) and enclose the side struts (15) at three sides.
    3. Escalator step according to claim 1 or 2, characterised in that the edges of the side plates (7, 8) bear against the rear side (17) of the step front (11).
    4. Escalator step according to one of claims 1 to 3, characterised in that each of the guide rollers (2) is mounted on a respective stub axle pin (21) of the side struts (15) and that a metal ring (20), which encloses the stub axle pin (21), is non-detachably connected with the side plates (7, 8).
    5. Escalator step according to claim 4, characterised in that the reinforcing section (6) has recesses (9) for reception of existing reinforcing ribs (5.1, 5.2) of the compact step body.
    6. Reinforcing element (6, 7, 8) for increasing the fracture load limit of a compact step body (10 in aluminium die-casting of an escalator step, which compact step body (1) comprises a tread surface (12), a step front (11) and side struts (15) with guide rollers (2), which reinforcing elements as reinforcing section (6) are fastenable to bear in transverse direction at the underside (16) of the tread surface (12) and as reinforcing side plates (7, 8) are fastenable to bear in longitudinal direction at the side struts (15).
    7. Reinforcing element (6, 7, 8) according to claim 6, characterised in that the reinforcing section (6) is a folded section.
    8. Method of increasing the fracture load limit of a compact step body (10 in aluminium die-casting of an escalator step, which compact step body (1) comprises a tread surface (12), a step front (11) and side struts (15) with guide rollers (2), characterised in that a reinforcing section (6) is fastened to the underside (16) of the tread surface (12) to bear in transverse direction and that reinforcing side plates (7, 8) are fastened to the side struts (15) to bear in longitudinal direction.
    9. Method according to claim 8, characterised in that a first method step a stiffening section (6), a side plate (7) and a side plate (8) are provided with a drill hole pattern, that in a second method step the stiffening section (6) is placed against the underside (16) of the step body (1) and the side plates (7, 8) against the side struts (15), that in a third method step the stiffening section (6) and the side plates (7, 8) are drilled in correspondence with the drill hole pattern with the step body (1), and that in a fourth method step the stiffening section (6) is screw-connected and/or riveted to the underside (16) and the side plates (7, 8) are screw-connected and/or riveted to the side struts (15).
    10. Method according to claim 9, characterised in that the stiffening section (6) is additionally glued to the underside (16) and/or the side plates (7, 8) are additionally glued to the side struts (15).
    EP19970108089 1996-05-30 1997-05-17 Escalator tread Expired - Lifetime EP0816278B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP19970108089 EP0816278B1 (en) 1996-05-30 1997-05-17 Escalator tread

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    EP96810345 1996-05-30
    EP96810345 1996-05-30
    EP19970108089 EP0816278B1 (en) 1996-05-30 1997-05-17 Escalator tread

    Publications (2)

    Publication Number Publication Date
    EP0816278A1 EP0816278A1 (en) 1998-01-07
    EP0816278B1 true EP0816278B1 (en) 2004-02-04

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    Application Number Title Priority Date Filing Date
    EP19970108089 Expired - Lifetime EP0816278B1 (en) 1996-05-30 1997-05-17 Escalator tread

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    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE29804464U1 (en) * 1998-03-12 1998-05-28 Thyssen Aufzuege Gmbh Escalator step or moving walk pallet
    DE20009021U1 (en) * 2000-05-18 2000-12-07 Thyssen Fahrtreppen Gmbh Escalator step or moving walk pallet
    BRPI0817926B1 (en) * 2007-10-01 2019-11-05 Inventio Ag escalator step or escalator plate, process for producing a step or plate, escalator or escalator
    CN106379803A (en) * 2016-10-28 2017-02-08 日立电梯(广州)自动扶梯有限公司 Escalator safety step

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2717666A1 (en) * 1977-04-21 1978-10-26 Schmidt Gmbh Karl ESCALATOR LEVEL
    US4805757A (en) * 1986-12-31 1989-02-21 Wilcox John R Escalator step side plate
    NZ238537A (en) * 1991-06-13 1994-05-26 Escalator Advertising Ltd Escalator step with advertising sign
    US5358089A (en) * 1994-03-01 1994-10-25 Riedel Hans Dieter Plastic escalator step

    Also Published As

    Publication number Publication date
    EP0816278A1 (en) 1998-01-07

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