EP1935831B1 - Drive system with step chain or pallet chain for a moving device and moving device with such a drive system - Google Patents
Drive system with step chain or pallet chain for a moving device and moving device with such a drive system Download PDFInfo
- Publication number
- EP1935831B1 EP1935831B1 EP07122674.0A EP07122674A EP1935831B1 EP 1935831 B1 EP1935831 B1 EP 1935831B1 EP 07122674 A EP07122674 A EP 07122674A EP 1935831 B1 EP1935831 B1 EP 1935831B1
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- European Patent Office
- Prior art keywords
- chain
- transportation
- rollers
- transportation device
- sliding
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- 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
Definitions
- the invention relates to a driving device with a drive system with a conveyor chain according to the preamble of claim 1.
- Driving devices in the sense of the invention which can also be referred to as conveyors, are escalators and moving walks with a plurality of step units or escalator steps or moving platform pallets which are connected to an endless conveyor. Users of the driving devices stand on treads of the kiting units or they stand or walk on the pavement pallets in the same direction as the driving devices themselves.
- the escalator steps form stepping units, hereinafter referred to as steps
- the moving walkway pallets form stepping units, hereinafter referred to as pallets.
- Escalators overcome with a relatively large inclination larger height differences as whole floors or more. Moving walkways are horizontal or slightly inclined, but generally at a lower incline than escalators.
- Such vehicles typically include step or pallet chains by means of which the steps or pallets are moved in the conveying direction.
- step chains are driven and are provided at regular intervals with so-called rollers.
- the rollers roll or travel along rails. Run in the area of the ends of the driving facilities the step chains with the rollers around sprockets or deflections around and thus make a change of direction by 180 degrees.
- a driving device with stepped or pallet chains is from the patent application DE-100 63 844 known. In this patent application, it is primarily about reducing the number of chain elements, or chain links, which are used per stage or pallet.
- step chains including many rollers made of many items that are expensive and expensive and laborious.
- step chain with the elements thereon is one of the essential components of the conveyor system of a driving device, and certain changes to this complex drive system or conveyor system could have undesirable consequences, such as reduced smoothness and possibly uneven running and increased noise.
- driving device 1 is an escalator, which connects a lower level E1 with an upper level E2.
- the driving device 1 has lateral balustrades 2 and, as visible moving parts, the step chain 5 and an endless handrail 101.
- the step chain or pallet chain 5, hereinafter referred to as chain 5 and the handrail 101 are solidary or simultaneously movable.
- the escalator or the endless conveyor essentially comprises a plurality of steps or stepping units 4 with the step chain or pallet chain 5 connecting the steps 4, a motor, not shown, plus gearbox and an upper deflector 102 and a lower deflector 103 located in the upper one or lower end portion of the escalator, of the upper deflection 102 for clarity, only the axis is shown.
- the pallets or steps or tread units 4 are formed or represented here by steps and have tread surfaces 104.
- the conveyor chain 5 runs from the lower deflection 103, which is located in the region of the lower level E1, obliquely upward to the local upper deflection 102, which is located in the region of the upper level E2.
- the region which leads from the lower deflection 103 to the upper deflection 102 is also referred to below as the conveying region 106 of the driving device 1, since in this region the tread surfaces 104 of the steps or treading units 4 face upwards and can thus accommodate persons.
- the return of the conveyor chain 5 from the upper deflection 102 to the lower deflection 103 takes place in a return region 105, which lies below the mentioned conveying region 106. During the return, that is, in the return area 105, have the treads 104 of the treading units or stages 4 down.
- the chains 5 similar chains comprise a plurality of chain links, to which so-called rollers are fixed at regular intervals.
- a chain 5 is used, which has instead of the rollers so-called guide or sliding elements 6.
- These sliding elements 6 are mechanically connected to the chain 5 and designed so that they slide along a guide rail 7 or skate or surf.
- the guide rail or rail 7 and the chain 5 with the sliding elements 6 are in Fig. 2 shown in horizontal orientation.
- the chain 5 with the sliding elements 6 slides with the same pitch as the chain track 5 in Fig. 1 from the lower level E1 to the upper level E2.
- a sprocket 10 is provided with a peripheral portion 3 having recesses 3.1 at its outer periphery to at least partially receive the sliding elements 6 of the chain 5.
- This sprocket 10 according to the first embodiment is designed very similar to that described in connection with the second embodiment and in Fig. 4A illustrated sprocket 10.
- FIGS Figures 3 . 4A and 4B A second embodiment of the invention will be described below with reference to FIGS Figures 3 . 4A and 4B described, wherein the same reference numerals are used for the same or equivalent elements of all embodiments.
- Fig. 3 are tread elements or steps 4 with tread surfaces 104, the dimension in the conveying direction letter C measures or measures shown.
- a portion of the conveyor chain 5 is shown, which has a plurality of uniformly spaced guide or sliding elements and rollers 9, which in the conveying region of Driving device 1 along the guide rail 7 passed or slid.
- elements 6 and 9 are used.
- elements designated as rollers 9 are used, as known from the prior art. Unlike the prior art, the distance A between two adjacent rollers 9 is significantly larger than in conventional solutions.
- Between adjacent rollers 9, at least one element designed as a sliding element 6 is arranged on the chain 5, but preferably two such sliding elements 6 are arranged on the chain 5.
- rollers 9 as well as axes 9.1 and the sliding elements 6 have other axes 6.1.
- These axes or chain pins 9.1 and 6.1 are substantially parallel to each other and are perpendicular to the plane of the drawing.
- the rollers 9 and the sliding elements 6 are mechanically arranged on the conveyor chain 5 so that sliding zones 6.2 of the sliding elements 6 lie in a tangential plane 7.1 of the rollers 9.
- the rollers 9 roll along the guide rail 7, while the sliding elements 6 with their sliding zones 6.2 skid along the guide rail 7 respectively slide.
- FIG. 4A Further details of the conveyor system or drive system 100 can be seen. Also the in Fig. 4A shown part of the conveyor system 100 is shown in Aufrissmässig, and when installed in an escalator. In the case of a moving walk or pallet conveyor, the elements of the conveying or drive system 100 shown are substantially approximately horizontal to slightly inclined.
- the chain 5 shown comprises a plurality of chain elements, or chain links 8. These chain links 8 are each hinged together and form an endless chain.
- the chain links 8 extend in the embodiment shown in each case from axle or chain pin to axle or chain pin, ie between two Axles or chain pins 9.1 and 6.1 of a roller 9 and the adjacent sliding element 6 or between two axes or chain pins 6.1 adjacent sliding elements 6.
- the distance between one of the axes or chain pins 9.1 to the nearest axis 6.1 or the distance between two consecutive axes or Chain pin 6.1 determines the length of the chain links 8. Since in the example shown successive axes are equidistant with a center distance A / 3, all chain links 8 have the same length. This greatly simplifies the construction of the entire conveyor chain 5, since only one or two types of chain links 8 are needed.
- the axial distance A between two adjacent rollers 9 corresponds approximately to about the length C of the Trittelements respectively the stepping unit or stage 4, ie A is approximately equal to C, as from Fig. 3 seen.
- a roller 9 is provided, and preferably the stepping unit or step 4 in the region of the chain pin or axle 9.1 with the roller 9 and thus also mechanically connected to the conveyor chain 5, as in Fig. 3 shown.
- Fig. 4A It is also shown how the conveyor chain 5 is guided around the sprocket 10 to change the direction of the conveyor chain 5.
- the recesses 3.1 are provided for the rollers 9 and recesses 3.2 for the sliding elements 6. Since between two rollers 9 two sliding elements 6 are arranged, as in the embodiment shown as a variant or for example, two corresponding recesses 3.2 for the sliding elements 6 are provided on the sprocket 10 between two recesses 3.1 for rollers 9.
- the number of recesses 3.2 between two recesses 3.1 can be arbitrary.
- the sprocket 10 at equal angular intervals arranged recesses, which are all the same or the same size or similar executed. These recesses then take on both the rollers 9 and the sliding elements 6.
- FIGS. 5A and 5B Further details of a possible embodiment of a sliding element 6 are shown.
- Fig. 5A shows an elevation view and front view and Fig. 5B a section along the line ZZ the Fig. 5A
- the sliding element 6 shown has a sliding zone 6.2, which is designed for optimum sliding.
- the sliding zone 6.2 is designed skid-shaped in order to allow a smooth introduction or a slide into the guide rail 7.
- the sliding element 6 comprises a support body or base body 6.3, for example with struts or webs.
- an area for receiving an insert bushing 6.4 or a plain bearing bush in a new variant of the sliding element 6 can also be provided.
- the sliding zone 6.2 is coated with a material, or the sliding zone 6.2 comprises a material that has a low coefficient of friction.
- a sliding zone 6.2 with a PTFE bandage PTFE: polytetrafluoroethylene
- PTFE polytetrafluoroethylene
- TPE aramid or thermoplastic elastomers
- TPU thermoplastic polyurethanes
- PTFE is particularly suitable because of the low friction coefficient and the robustness of suitable material combinations. Since PTFE slides particularly smoothly on PTFE, in a preferred embodiment, a guide rail 7 is used, which is also provided in the region of the sliding zone with PTFE, or coated with Teflon. In addition, the friction of PTFE with suitable material combinations is exactly the same as the sliding friction, so that the transition from standstill to motion takes place without jerking, which is particularly advantageous for applications in the field of driving equipment.
- FIGS. 6A and 6B Further details of a possible embodiment or chain variant are described. Again, this is a chain variant in which rollers 9 and sliding elements 6 are used on one and the same chain 5.
- Fig. 1 indicated there are transition areas where a transition arc 4.1 or 4.2 is present with a transition radius. This is the case in particular if a transition between two differently inclined parts of the conveying region is provided in a driving device 1. Due to the bias on the conveyor chain 5 runs in the region of the transition arc 4.1, the chain 5 as a chord of the circle whose radius corresponds to the transition radius.
- a chain back pressure guide 14 is provided according to the invention. As in FIGS.
- the chain back pressure guide 14 has a cross section in the form of a U or C.
- the chain back pressure guide 14 is installed so that it presses against two lugs of the chain links 8, so as to press the roller 9 or the sliding member 6 against the guide rail 7.
- the chain back pressure guide 14 prevents the conveyor chain 5 runs in the form of the described tendon.
- a further chain back pressure guide 15, 16, 17 are used, as in the Figures 6C and 6D is shown. It come in this case by a spring 16 acted upon pressure guide elements 15 are used, which press against the rollers 9 or 6 sliding elements. Conditioned by the spring 16, there is a automatic adjustment of the position or height of the pressure guide elements.
- Fig. 6C the pressure guide element is further displaced towards the guide rail 7 as in Fig. 6D ,
- the sliding elements 6 are mechanically connected to the conveyor chain 5 via corresponding bushes in such a way that they permit certain fluctuations, chain oscillations or pendulum movements about the axis 6.1 and / or in the transverse direction.
- a completely new driving or escalator generation can be realized, which manages completely or at least partially without rollers.
- the new driving device is more advantageous, beneficial and cheaper, since instead of the previous three rollers 9 per level 4 or pallet now only a roller, as in the embodiment according to Fig. 3 , or no rollers at all, as in the embodiment according to Fig. 2 , are used. This has the advantage that you save expensive ball bearings, which are required for connecting the rollers 9 on the conveyor chain 5.
- the invention can be applied to both escalators and moving walks.
Landscapes
- Escalators And Moving Walkways (AREA)
Description
Die Erfindung betrifft eine Fahreinrichtung mit einem Antriebssystem mit einer Forderkette nach dem Oberbegriff des Anspruchs 1.The invention relates to a driving device with a drive system with a conveyor chain according to the preamble of
Fahreinrichtungen im Sinne der Erfindung, die auch als Fördereinrichtungen bezeichnet werden können, sind Fahrtreppen und Fahrsteige mit einer Vielzahl von Tritteinheiten bzw. Fahrtreppenstufen oder Fahrsteigpaletten, die zu einem Endlosförderer verbunden sind. Benutzer der Fahreinrichtungen stehen auf Trittflächen der Tritteinheiten oder sie stehen oder gehen auf den Fahrsteigpaletten in gleicher Richtung wie die Fahreinrichtungen selbst.Driving devices in the sense of the invention, which can also be referred to as conveyors, are escalators and moving walks with a plurality of step units or escalator steps or moving platform pallets which are connected to an endless conveyor. Users of the driving devices stand on treads of the kiting units or they stand or walk on the pavement pallets in the same direction as the driving devices themselves.
Bei Fahrtreppen bilden die Fahrtreppenstufen Tritteinheiten, im Weiteren als Stufen bezeichnet, und bei Fahrsteigen bilden die Fahrsteigpaletten Tritteinheiten, im Weiteren als Paletten bezeichnet. Fahrtreppen überwinden mit relativ grossem Neigungswinkel grössere Höhenunterschiede wie ganze Stockwerke oder mehr. Fahrsteige verlaufen horizontal oder leicht schräg, aber im Allgemeinen mit geringerem Neigungswinkel als Fahrtreppen.For escalators, the escalator steps form stepping units, hereinafter referred to as steps, and for moving walkways, the moving walkway pallets form stepping units, hereinafter referred to as pallets. Escalators overcome with a relatively large inclination larger height differences as whole floors or more. Moving walkways are horizontal or slightly inclined, but generally at a lower incline than escalators.
Typischerweise umfassen solche Fahreinrichtungen Stufen- oder Palettenketten, mittels denen die Stufen oder Paletten in Förderrichtung bewegt werden. Im Folgenden werden lediglich Stufenketten erwähnt, worunter jedoch auch Palettenketten verstanden werden sollen. Diese Stufenketten werden angetrieben und sind in gleichmässigen Abständen mit sogenannten Laufrollen versehen. Die Laufrollen rollen oder fahren entlang von Laufschienen. Im Bereich der Enden der Fahreinrichtungen laufen die Stufenketten mit den Laufrollen um Kettenräder oder Umlenkungen herum und vollziehen so einen Richtungswechsel um 180 Grad.Typically, such vehicles include step or pallet chains by means of which the steps or pallets are moved in the conveying direction. In the following, only step chains are mentioned, by which, however, pallet chains are to be understood. These step chains are driven and are provided at regular intervals with so-called rollers. The rollers roll or travel along rails. Run in the area of the ends of the driving facilities the step chains with the rollers around sprockets or deflections around and thus make a change of direction by 180 degrees.
Eine Fahreinrichtung mit Stufen- oder Palettenketten ist aus der Patentaruneldung
Es wird als Nachteil bisheriger Fahzeinrichtungen empfunden, dass die Stufenketten samt vieler Laufrollen aus vielen Einzelteilen bestehen, die teuer und kostspielig und arbeitsaufwendig sind. Anderseits ist aber die Stufenkette mit den daran befindlichen Elementen eines der wesentlichen Bauteile des Fördersystems einer Fahreinrichtung, und gewisse Änderungen an diesem komplexen Antriebssystem bzw. Fördersystem könnten unerwünschte Konsequenzen haben, wie reduzierte Laufruhe und eventuell auch ungleichmässigen Lauf sowie eine erhöhte Geräuschentwicklung.It is felt as a disadvantage of existing Fahzeinrichtungen that the step chains including many rollers made of many items that are expensive and expensive and laborious. On the other hand, but the step chain with the elements thereon is one of the essential components of the conveyor system of a driving device, and certain changes to this complex drive system or conveyor system could have undesirable consequences, such as reduced smoothness and possibly uneven running and increased noise.
Aufgabe der Erfindung ist es daher,
- eine Fahreinrichtung der eingangs genannten Art zu schaffen, mit welcher die erwähnten Nachteile vermieden werden, die aber trotzdem einen ruhigen, ruckfreien Lauf ermöglicht, nicht störungsanfällig ist und eine hohe Lebensdauer hat.
- to provide a driving device of the type mentioned, with which the mentioned disadvantages are avoided, but still allows a smooth, smooth running, is not prone to failure and has a long life.
Diese Aufgabe wird erfindungsgemäss durch die Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention by the features of
Bevorzugte Weiterbildungen der erfindungsgemässen Fahreinrichtung sind durch die abhängigen Ansprüche definiert.Preferred developments of the driving device according to the invention are defined by the dependent claims.
Die Erfindung wird im Folgenden an Hand von Beispielen und mit Bezug auf die Zeichnungen ausführlich beschrieben. Es zeigen:
- Fig. 1
- eine Fahreinrichtung in Form einer Fahrtreppe, in einer seitlichen Ansicht, teilweise geschnitten;
- Fig. 2
- einen Teil einer Förderkette bzw. -systems in einer ersten Ausführungsform, in einer seitlichen Ansicht;
- Fig. 3
- einen Teil einer Förderkette bzw. -systems in einer zweiten Ausführungsform, in einer seitlichen Ansicht mit Stufen, wenn sie sich horizontal bewegen;
- Fig. 4A
- einen Teil eines Fördersystems, in einer seitlichen, vergrösserten Ansicht beim Antriebsrad;
- Fig. 4B
- eine Ansicht eines Teils des Systems nach
Fig. 4A bzw.Fig.3 ; - Fig. 5A
- ein Gleitelement in einer seitlichen, vergrösserten Ansicht, im Aufriss;
- Fig. 5B
- einen Schnitt durch das Gleitelement von
Fig. 5A längs der Linie Z-Z; - Fig. 6A
- das Gleitelement von
Fig. 5A im Bereich eines Umlenkradius, wobei eine erste Ausführungsform einer Kettengegendruckführung vorgesehen ist, in einem Schnitt längs der Linie B-B derFig. 1 ; - Fig. 6B
- eine Laufrolle im Bereich des Umlenkradius, wobei auch hier eine erste Ausführungsform einer Kettengegendruckführung vorgesehen ist, in gleicher Darstellung wie
Fig. 6A ; - Fig. 6C
- ein Gleitelement beim Umlaufen, wobei eine zweite Ausführungsform einer Kettengegendruckführung vorgesehen ist, in gleicher Darstellung wie
Fig. 6A und - Fig. 6D
- eine Laufrolle beim Umlaufen, wobei eine zweite Ausführungsform einer Kettengegendruckführung vorgesehen ist, in gleicher Darstellung wie
Fig. 6A und 6B .
- Fig. 1
- a driving device in the form of an escalator, in a side view, partially cut;
- Fig. 2
- a portion of a conveyor chain or system in a first embodiment, in a side view;
- Fig. 3
- a portion of a conveyor chain or system in a second embodiment, in a side view with steps as they move horizontally;
- Fig. 4A
- a part of a conveyor system, in a side, enlarged view of the drive wheel;
- Fig. 4B
- a view of part of the system
Fig. 4A respectively.Figure 3 ; - Fig. 5A
- a sliding element in a lateral, enlarged view, in elevation;
- Fig. 5B
- a section through the sliding element of
Fig. 5A along the line ZZ; - Fig. 6A
- the sliding element of
Fig. 5A in the region of a deflection radius, wherein a first embodiment of a chain back pressure guide is provided, in a section along the line BB of theFig. 1 ; - Fig. 6B
- a roller in the region of the deflection radius, wherein here also a first embodiment of a chain back pressure guide is provided, in the same representation as
Fig. 6A ; - Fig. 6C
- a sliding element when circulating, wherein a second embodiment of a chain back pressure guide is provided, in the same representation as
Fig. 6A and - Fig. 6D
- a roller when circulating, wherein a second embodiment of a chain back pressure guide is provided, in the same representation as
FIGS. 6A and 6B ,
Die in
Die Fahrtreppe bzw. der Endlosförderer umfasst im Wesentlichen eine Vielzahl von Stufen bzw. Tritteinheiten 4 mit der die Stufen 4 verbindenden Stufenkette bzw. Palettenkette 5, einen nicht dargestellten Motor plus Getriebe sowie eine obere Umlenkung 102 und eine untere Umlenkung 103, die sich im oberen bzw. unteren Endbereich der Fahrtreppe befinden, wobei von der oberen Umlenkung 102 der Übersichtlichkeit halber nur die Achse dargestellt ist. Die Paletten oder Stufen bzw. Tritteinheiten 4 sind hier durch Stufen gebildet bzw. dargestellt und weisen Trittflächen 104 auf.The escalator or the endless conveyor essentially comprises a plurality of steps or stepping
Wie in
Aus dem Stand der Technik bekannte, den Ketten 5 gleichartige Ketten, umfassen eine Vielzahl von Kettengliedern, an denen so genannte Laufrollen in gleichmässigen Abständen befestigt sind.Known from the prior art, the
Gemäss einer ersten Ausführungsform der Erfindung, die in
Eine zweite Ausführungsform der Erfindung wird im Folgenden unter Bezugnahme auf die
Aus
In
Vorzugsweise entspricht der Achsabstand A zwischen zwei benachbarten Laufrollen 9 ungefähr, etwa der Länge C des Trittelements respektive der Tritteinheit bzw. Stufe 4, d.h. A ist ungefähr gleich C, wie aus
In
In einer anderen, nicht gezeigten Ausführungsform weist das Kettenrad 10 in gleichen Winkelabständen angeordnete Ausnehmungen auf, die alle gleich oder gleichgross oder ähnlich ausgeführt sind. Diese Ausnehmungen nehmen dann sowohl die Laufrollen 9 als auch die Gleitelemente 6 auf.In another, not shown embodiment, the
In den
Vorzugsweise ist die Gleitzone 6.2 mit einem Material beschichtet, oder die Gleitzone 6.2 umfasst ein Material, das einen niedrigen Reibungskoeffizienten hat. Besonders geeignet ist eine Gleitzone 6.2 mit einer PTFE-Bandage (PTFE: Polytetrafluorethylen) oder mit einer Polyurethan-Bandage. Es kann auch ein Aramid verwendet werden, bzw. Thermoplastische Elastomere (TPE) oder thermoplastische Polyurethane (TPU) sowie alle Thermoplastischen Kunststoffe. Diese Bandagen sind vorzugsweise hydrolysefest oder hydrolysestabilisiert ausgeführt.Preferably, the sliding zone 6.2 is coated with a material, or the sliding zone 6.2 comprises a material that has a low coefficient of friction. Particularly suitable is a sliding zone 6.2 with a PTFE bandage (PTFE: polytetrafluoroethylene) or with a polyurethane bandage. It is also possible to use an aramid or thermoplastic elastomers (TPE) or thermoplastic polyurethanes (TPU) as well as all thermoplastics. These bandages are preferably carried out hydrolysis or hydrolysis stabilized.
PTFE eignet sich besonders wegen des bei geeigneten Materialkombinationen niedrigen Reibungskoeffizienten und der Robustheit. Da PTFE besonders reibungslos gleitet auch auf PTFE, kommt in einer bevorzugten Ausführungsform eine Führungsschiene 7 zum Einsatz, die im Bereich der Gleitzone auch mit PTFE versehen ist, bzw. mit Teflon beschichtet ist. Außerdem ist die Haftreibung von PTFE bei geeigneten Werkstoffkombinationen genau gleich wie die Gleitreibung, so dass der Übergang vom Stillstand zur Bewegung ohne Rucken stattfindet, was für Anwendungen im Bereich der Fahreinrichtungen besonders von Vorteil ist.PTFE is particularly suitable because of the low friction coefficient and the robustness of suitable material combinations. Since PTFE slides particularly smoothly on PTFE, in a preferred embodiment, a
In den
Alternativ oder zusätzlich kann auch eine weitere Kettengegendruckführung 15, 16, 17 eingesetzt werden, wie sie in den
Statt zwischen zwei aufeinanderfolgenden Laufrollen drei Kettenglieder 8 anzuordnen, wie oben beschrieben, kann auch eine kleinere oder grössere Anzahl von Kettenteilungen bzw. Kettengliedern eingesetzt werden. Je längere Kettenglieder, um so notwendiger wird der Einsatz einer geeigneten Kettengegendruckführung, wie beschrieben, da Ketten mit längeren Kettengliedern weniger gelenkig und flexibel sind.Instead of arranging three
In einer bewerten Ausführungsform sind die Gleitelemente 6 über entsprechende Buchsen mechanisch so mit der Förderkette 5 verbunden, dass sie gewisse Schwankungen, Kettenschwingungen oder Pendelbewegungen um die Achse 6.1 und/oder in Querrichtung zulassen.In an evaluation embodiment, the sliding
Mit der vorliegenden Erfindung lässt sich eine komplett neue Fahr- oder Rolltreppengeneration realisieren, die ganz oder wenigstens teilweise ohne Laufrollen auskommt. Die neue Fahreinrichtung ist vorteilhafter, nutzbringender und günstiger, da anstatt bisher drei Laufrollen 9 pro Stufe 4 oder Palette jetzt nur noch eine Laufrolle, wie bei der Ausführungsform nach
Bei Verwendung von mehreren Gleitelementen 6 ist eine gleichmässigere Nutz- und Lastverteilung gegeben. Dadurch wird eine kleinere Abnützung gewährleistet bzw. festgelegt bzw. festgesetzt.When using a plurality of sliding elements 6 a more uniform load and load distribution is given. As a result, a smaller wear is guaranteed or set or fixed.
Wie beschrieben, lässt sich die Erfindung sowohl auf Fahrtreppen als auch auf Fahrsteige anwenden.As described, the invention can be applied to both escalators and moving walks.
Claims (10)
- Transportation device (1) with a transportation system (100) comprising a transportation chain (5) with a number of chain links (8), which are joined into an articulated endless chain, and with a sprocket (10) to reverse the transportation chain (5), wherein the transportation chain (5) has a plurality of equally spaced guiding elements (9, 6) which, in a transportation area (106) of the transportation device (1), are guided along a guiderail (7), characterized in that- as guide elements (9), the transportation system (100) contains a plurality of sliding elements (6), which are mechanically linked to the transportation chain (5) and executed in such manner that, when the transportation system (100) of the transportation device (1) is in motion, they slide along the guiderail (7), and- in that, on its outer circumference, the sprocket (10) has recesses (3.2) to at least partly accommodate the sliding elements (6).
- Transportation device (1) according to Claim 1, characterized in that, in addition to the sliding elements (6), also mechanically linked to the transportation chain (5) are rollers (9), these rollers (9) rolling along the guiderail (7) when the drive system (100) of the transportation device (1) is in motion, and the sprocket (10) preferably having on its outer circumference recesses (3.1) in order to at least partly accommodate the rollers (9).
- Transportation device (1) according to Claim 2, characterized in that the transportation device (1) has a number of steps (4) or pallets, and in that, provided on the transportation chain (5) is a corresponding number of rollers (9), and in that these rollers (9) are equally spaced.
- Transportation device (1) according to Claim 2 or 3, characterized in that, arranged on the transportation chain (5), between two rollers (9), is at least one sliding element (6), preferably two sliding elements (6).
- Transportation device (1) according to one of claims 1 to 4, characterized in that the sliding elements (6) are executed skid-like, and/or domed and/or rounded, and preferably have a sliding zone (6.2).
- Transportation device (1) according to one of claims 1 to 4, characterized in that the sliding elements (6) have a sliding zone (6.2) with a low coefficient of friction.
- Transportation device (1) according to one of claims 1 to 6, characterized in that, in the area of the transitional arc (4.1), in order to exert a directed pressure on the section of the transportation chain (5), a chain counterpressure guide (14, 15) is present.
- Transportation device (1) according to one of the foregoing claims, characterized in that, besides the transportation system (100), the transportation device (1) contains at least one guiderail (7), which is arranged in such manner that, when the transportation system (100) of the transportation device (1) is in motion, the sliding elements (6) and/or the rollers (9) slide, or roll, along the guiderail (7).
- Transportation device (1) according to Claim 8, characterized in that, to prevent a local lifting of the sliding element (6) and/or of the roller (9), in the area of the transportation chain (5) a chain counterpressure guide (14, 15) is provided.
- Transportation device (1) according to Claim 8 or 9, characterized in that, to keep the coefficient of friction low, the guiderail (7) is coated, or partly has, or contains, a sliding material, polytetrafluorethylene being preferably used as coating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07122674.0A EP1935831B1 (en) | 2006-12-21 | 2007-12-07 | Drive system with step chain or pallet chain for a moving device and moving device with such a drive system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06126810 | 2006-12-21 | ||
EP07122674.0A EP1935831B1 (en) | 2006-12-21 | 2007-12-07 | Drive system with step chain or pallet chain for a moving device and moving device with such a drive system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1935831A1 EP1935831A1 (en) | 2008-06-25 |
EP1935831B1 true EP1935831B1 (en) | 2016-03-09 |
Family
ID=39420642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07122674.0A Not-in-force EP1935831B1 (en) | 2006-12-21 | 2007-12-07 | Drive system with step chain or pallet chain for a moving device and moving device with such a drive system |
Country Status (1)
Country | Link |
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EP (1) | EP1935831B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2516151A1 (en) * | 1975-04-12 | 1976-10-21 | Hugo Stefan Mueller | ENDLESS CIRCULATING DEVICE, IN PARTICULAR LATTER CONVEYOR |
NL1000241C2 (en) * | 1995-04-27 | 1996-10-29 | Metaalgaasweverij Twente B V | Conveyor belt. |
DE29817293U1 (en) * | 1998-09-25 | 1998-11-19 | Daub Hamburg GmbH, 22525 Hamburg | Baking tape |
DE10063844B4 (en) * | 2000-12-21 | 2004-07-22 | Kone Corp. | Drive system for escalators and moving walks |
-
2007
- 2007-12-07 EP EP07122674.0A patent/EP1935831B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1935831A1 (en) | 2008-06-25 |
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