EP1561720B1 - Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means - Google Patents

Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means Download PDF

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Publication number
EP1561720B1
EP1561720B1 EP05103258A EP05103258A EP1561720B1 EP 1561720 B1 EP1561720 B1 EP 1561720B1 EP 05103258 A EP05103258 A EP 05103258A EP 05103258 A EP05103258 A EP 05103258A EP 1561720 B1 EP1561720 B1 EP 1561720B1
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EP
European Patent Office
Prior art keywords
drive
transmission means
belt
lift
pulley
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.)
Revoked
Application number
EP05103258A
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German (de)
French (fr)
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EP1561720A2 (en
EP1561720A3 (en
Inventor
Ernst Ach
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Inventio AG
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Inventio AG
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Priority to EP05103258A priority Critical patent/EP1561720B1/en
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Publication of EP1561720A3 publication Critical patent/EP1561720A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B66B11/009—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave with separate traction and suspension ropes

Definitions

  • the invention relates to an elevator system with a drive, which cooperates via a transmission means with an elevator car and a counterweight to move the elevator car and the counterweight by transmitting a force in an elevator shaft.
  • Elevator systems of this type usually have an elevator car which is movable in an elevator shaft or freely along a guide device. To generate the movement, the elevator system has a drive, which interacts via transmission means with the elevator car and a balance weight (also called a counterweight).
  • a balance weight also called a counterweight
  • FIG PCT Patent Application WO 99/43602 An example of a flat transmission elevator system is shown in FIG PCT Patent Application WO 99/43602 known.
  • the elevator car according to this patent application is moved by a drive which sits on the balance weight and moves in solidarity with the weight.
  • the described system has the disadvantage that the belt used as a transmission means does not have the optimum traction behavior achievable with certain other belt-type transmission means, and that the power supply to the drive motor as well as the transmission of Signals from associated control and regulation devices must be made over long, flexible cable.
  • Another elevator system with schwriemenartigem transmission means is from the PCT Patent Application WO 99/43592 known.
  • the drive is integrated in the counterweight, and a timing belt-like transmission means fixed in the elevator shaft serves to transmit the driving force between the counterweight and the elevator shaft. Since the elevator car and the balance weight depend on an actual suspension element separate from said timing belt transmission means, the drive and transmission means transmit only the differential force between the counterweight and the weight of the elevator car.
  • This system has the same disadvantages as described above and has the additional disadvantage that a toothed belt is used for the drive function and another means for the support function. Compared to a system where the drive and support functions are done by the same means, this system requires a larger number of pulleys or pulleys.
  • a different elevator system with timing belt-like transmission means is from the U.S. Patent 5,191,920 known.
  • the timing belt-like transmission means is stationary in the elevator shaft.
  • the drive unit is located on the elevator car or on the so-called load-receiving means.
  • the belts disclosed in the cited documents have certain disadvantages.
  • Flat belts have insufficient traction capability in elevator facilities with elevator cabins that are lightweight relative to the payload.
  • the problem with timing belts is that they do not slip on the drive pulley when the elevator car or counterweight is resting on its limit buffers due to a control failure.
  • the centering of the belt on the Riemenpulleys is not easy to implement. Special measures may need to be taken on the pulleys to prevent the belt from running out of the central position.
  • the object of the invention is thus seen to provide a further development of the elevator systems of the type mentioned, which reduces or avoids the disadvantages of the known systems.
  • the elevator system comprises an elevator car, a drive, belt-like transmission means, preferably a V-ribbed belt, and a counterweight.
  • the drive is stationary and the transfer means cooperate with the drive to move the elevator car by transmitting a force.
  • V-ribbed belts - also called V-ribbed belt - are used.
  • Such a V-ribbed belt can advantageously be used as a frictional (adhesive) support and / or drive element (transmission means) for an elevator car with counterweight.
  • the V-ribbed belt allows, with similar running characteristics as a flat belt, by its shape a higher rope force ratio.
  • a high rope force ratio means that the tension in the belt pulley running (pulled) strand of the belt can be substantially higher than in the belt running from the belt pulley at the same time.
  • this advantage has the effect that even a very lightweight elevator car can interact with a much heavier counterweight without the transfer means slipping on the drive pulley.
  • the V-ribbed belt 13 has a plurality of wedge-shaped grooves 5 and V-ribs 6 arranged in parallel in the longitudinal direction. These wedge-shaped grooves 5 and V-ribs 6 allow by their wedge effect a cable force ratio of more than 2 at a wrap angle of 180 degrees.
  • the V-ribbed belt 13 that it centers itself on the pulleys driving or guiding it.
  • the V-ribbed belt 13 on the back side (that is, on the side having no wedge-shaped grooves 5 or V-ribs 6) is provided with a guide rib 2, as shown in FIG .
  • This guide rib 2 has the task, in a reverse bending of the V-ribbed belt, ie, when this rotates a pulley with directed against the pulley belt back, to guide the V-ribbed belt in a present in the running surface of the pulley guide groove.
  • the wedge-shaped grooves 5 of the V-ribbed belts 13 have a groove angle b of 80 degrees to 100 degrees.
  • the groove angle b is about 90 degrees.
  • This groove angle b is much larger than in conventional V-ribbed belts.
  • the larger groove angle b achieves a reduction of the running noise.
  • the self-centering property as well as an increased cable force ratio (defined above) are retained.
  • the V-ribbed belt 13 on the rear side, as shown in Fig. 13 is provided with a layer 4, which preferably has good sliding properties.
  • This layer 4 may be, for example, a fabric layer be. For multiple suspended elevator systems this facilitates the assembly.
  • V-ribbed belt 13 is shown in FIG .
  • This V-ribbed belt has both wedge-shaped grooves 5 and ribs 6 applied longitudinally, as well as lateral grooves 3. These transverse grooves 3 enhance the flexing flexibility of the V-ribbed belt so that it can cooperate with reduced diameter belt pulleys.
  • the transmission means (V-ribbed belt 13) contains tension members 1 oriented in the longitudinal direction, which consist of metallic strands (eg steel strands) or non-metallic strands (eg of manmade fibers) , Such tension members 1 impart the required tensile strength and / or longitudinal rigidity to the transfer means according to the invention.
  • a preferred embodiment of the transmission means comprises tension members 1 made of Zylon fibers.
  • Zylon is a trade name of Toyobo Co. Ltd., Japan, and refers to manmade fibers of poly (p-phenylene-2,6-benzobisoxazole) (PBO).
  • the tension members 1 should be embedded in the V-ribbed belt so that adjacent fibers or strands do not touch each other.
  • a degree of filling, ie a ratio between the total cross section of all tension members, is ideal and the cross-section of the belt, proven by at least 20%.
  • FIG. 16 shows an embodiment of the V-ribbed belt 13 which is likewise suitable as transmission means for elevator systems.
  • a flat tension layer 51 forms the core of the V-ribbed belt 13. This tension layer 51 extends substantially over the entire belt length and the entire belt width.
  • the tension layer 51 can consist of an unreinforced material layer, for example of a polyamide film, or be formed of a film reinforced with synthetic fibers. Such a reinforced film could, for example, contain the aforementioned Zylon fibers embedded in a suitable plastic matrix.
  • the tension layer 51 gives the flat belt the required tensile and creep resistance, but is also sufficiently flexible to withstand a sufficiently high number of bending operations when deflecting around a belt pulley.
  • the V-ribbed layer 53 can be made, for example, of polyurethane or of an NBR elastomer (nitrile butadiene rubber) and is connected over the whole or part of the surface, directly or via an intermediate layer, to the tension layer 51.
  • the rear side of the V-ribbed belt has a cover layer 54 connected to the tension layer 51 like the V-ribbed layer, which is advantageously designed as a sliding covering.
  • Intermediate layers may be present between said major layers to provide the necessary adhesion between said layers and / or increase the flexibility of the transfer medium.
  • This provided with an all-over tension layer V-ribbed belts can also have a guide rib as already described in connection with FIG. 15.
  • FIG. 17 shows another transmission means which can be used in elevator systems and which is suitable for achieving the object according to the invention.
  • It is a flat belt 50 composed of several layers of different materials.
  • the flat belt contains at least one flat tensile layer 51 in the core, which consists for example of an unreinforced polyamide film, or of a plastic film reinforced with chemical fibers embedded in the plastic matrix ,
  • This tension layer 51 gives the flat belt the required tensile and creep resistance, but is also sufficiently flexible to withstand a sufficiently high number of bending operations when deflecting around a belt pulley.
  • the flat belt 50 also has an outer, front-side friction layer 55, for example made of an NBR elastomer (nitrile butadiene rubber), as well as an outer, back-side cover 54, which, depending on the elevator system, is designed as a friction or sliding coating.
  • Intermediate layers 56 may be present between said main layers to provide the required adhesion between said layers and / or to increase the flexibility of the flat belt.
  • friction layers are available with coefficients of friction of 0.5 to 0.7 compared to steel pulleys, which are also very resistant to abrasion.
  • the lateral guidance of the flat belt 50 is usually ensured, as shown in Fig. 18, by attached to the pulleys 16 flanges 57, possibly in combination with a crowning of the pulley treads.
  • FIGS. 1A and 1B An embodiment of an elevator system 10 not belonging to the invention is illustrated in FIGS. 1A and 1B .
  • Fig. 1A shows a section through the head end of the elevator shaft 11.
  • the elevator car 12 as well as a counterweight 15 are moved via a V-ribbed belt transmission means 13 within the shaft 11.
  • a stationary drive 14 is provided which acts on the V-ribbed belt transmission means 13 via a drive pulley 16.1.
  • the drive 14 is mounted on a bracket 9 which is supported on or on one or more guide rails 18 of the elevator system.
  • the console 9 may be supported in or on the shaft wall.
  • the V-ribbed belt transmission means 13 is fixed at its one end in the region of the bracket 9, leads from this fixed point down to a suspension pulley 16.2 of a counterweight 15, wraps around this suspension pulley 16.2, leads up to the Antriebspulley 16.1, wraps around this, leading downwards a below the elevator car 12 attached to this first Umlenkpulley 16.3, from there horizontally below the elevator car 12 through to a second below the elevator car 12 attached to this Umlenkpulley 16.3 and then back up to a second, referred to as support structure 8 fixed point.
  • the car 12 is moved up or down via the V-ribbed belt transmission means 13.
  • the guide plane 20 formed by the two car guide rails 18 is, as shown in FIG.
  • the ratio of V-ribbed belt speed to cabin and counterweight speed is 2: 1 (2: 1 suspension).
  • the torque to be applied by the drive 14 is reduced in half compared to a 1: 1 suspension.
  • the minimum radius of drive and deflection pulleys required for V-ribbed belts is substantially lower than for the steel wire suspension cables hitherto customary in elevator construction, several advantages result. Thanks to the reduced diameter of the drive pulley 16.1, the am Drive 14 required torque and thus the dimensions of the drive. Thereby, and thanks to the deflection pulleys 16.2 and 16.3, which are also reduced in their diameters, the type of construction and arrangement of the elevator shown in FIGS. 1 and 2 is relatively compact and can be accommodated in the shaft 11 as shown.
  • the small size of the deflecting pulley 16.3 mounted on the cabin 12 allows the substructure, usually referred to as bottom block 17, to be designed with small dimensions below the elevator car 12, in which these deflecting pulleys 16.3 are installed.
  • this lower bottle 17 can be integrated with the Umlenkpulleys 16.3 even in the cabin floor.
  • FIG. 1 A cross-section through a similar embodiment not belonging to the invention is shown in FIG .
  • the elevator car 12 is moved via a V-ribbed belt transmission means 13 within the shaft 11.
  • a stationary drive 14 is provided which drives the V-ribbed belt transmission means 13.
  • Several pulleys are provided to guide the V-ribbed belt transmission means 13 accordingly.
  • the drive 14 is mounted stationarily above the upper end position of the counterweight 15.
  • the drive 14 is mounted on a bracket 9 which is supported on or on one or more guide rails 18 of the elevator system 10.
  • the lower block 17 is at right angles to the side walls of the elevator shaft 11 in the plane of the drawing.
  • this second embodiment is substantially similar to the first embodiment.
  • the car guide rails 18 are arranged eccentrically, ie the guide plane 20 is located between the car door 7 and the center of gravity S of the elevator car 12, which in the case shown lies on the central axis of the V-ribbed belt transmission means 13.
  • FIG. 3 shows a cross section through an embodiment of an elevator system 10 according to the invention.
  • the drive 14 is supported on the counterweight rails 19 and on one of the car rails 18.
  • the fixed point of the V-ribbed belt transmission means 13 is supported on the second car rail 18.
  • the car 12 and counterweight 15 2 1 suspended.
  • the diagonal course of the V-ribbed belt transmission means 13 allows a centrally guided with respect to the cabin center of gravity S and centrally suspended cabin 12 with the advantages described in connection with Figure 2 .
  • FIG. 11 Another embodiment not belonging to the invention is shown in FIG. 11 .
  • the drive 14 is in the example shown between the elevator car 12 and the wall of the shaft 11.
  • the elevator car 12 and the counterweight 15 are guided on common guide rails 18.
  • these rails have a special profile.
  • Either drive pulleys 16.1 can be provided on both sides of the drive 14 or only on one side of the drive 14.
  • FIG. 14 Another compact drive 14 is shown in FIG .
  • This drive 14 is characterized in that it has two drive pulleys 16.1.
  • the drive 14 further comprises a motor 40, a brake 41 and a continuous shaft 45.
  • the two drive pulleys 16.1 each sit at one end of the shaft 45.
  • the drive 14 is particularly suitable for laid out laterally above the cabin 12 installation.
  • the V-ribbed belt has teeth which are made highly wear-resistant.
  • the stationary drive is either housed in a machine room, or the drive is located in or on the elevator shaft.

Abstract

Lift system comprises a drive (14) including a V-ribbed belt (13) for moving the lift car (12) and counter-weight (15). An independent claim is included for a belt as described above with a core made from polybenzoxazole.

Description

Gegenstand der Erfindung ist ein Aufzugssystem mit einem Antrieb, der über ein Übertragungsmittel mit einer Aufzugskabine und einem Gegengewicht zusammenwirkt, um die Aufzugskabine und das Gegengewicht durch Übertragung einer Kraft in einem Aufzugschacht zu bewegen.The invention relates to an elevator system with a drive, which cooperates via a transmission means with an elevator car and a counterweight to move the elevator car and the counterweight by transmitting a force in an elevator shaft.

Aufzugssysteme dieser Art weisen üblicherweise eine Aufzugkabine auf, die in einem Aufzugschacht oder frei entlang einer Führungseinrichtung bewegbar ist. Zum Erzeugen der Bewegung weist das Aufzugssystem einen Antrieb auf, der über Übertragungsmittel mit der Aufzugkabine und einem Ausgleichsgewicht (auch Gegengewicht genannt) zusammenwirkt.Elevator systems of this type usually have an elevator car which is movable in an elevator shaft or freely along a guide device. To generate the movement, the elevator system has a drive, which interacts via transmission means with the elevator car and a balance weight (also called a counterweight).

Man unterscheidet Aufzugssysteme, bei denen Stahlseile runden Querschnitts als Übertragungsmittel eingesetzt werden und neuere Aufzugssysteme, die flache Riemen als Übertragungsungsmittel aufweisen.A distinction is made between elevator systems in which steel cables of round cross-section are used as transmission means and newer elevator systems which have flat belts as transmission means.

Ein Beispiel eines Aufzugssystems mit flachem Übertragungsmittel ist aus der PCT-Patentanmeldung WO 99/43602 bekannt. Die Aufzugkabine gemäss dieser Patentanmeldung wird durch einen Antrieb bewegt, der an dem Ausgleichsgewicht sitzt und sich solidarisch mit dem Gewicht bewegt.An example of a flat transmission elevator system is shown in FIG PCT Patent Application WO 99/43602 known. The elevator car according to this patent application is moved by a drive which sits on the balance weight and moves in solidarity with the weight.

Das beschriebene System hat den Nachteil, dass der als Übertragungsmittel verwendete Riemen nicht das mit bestimmten anderen riemenartigen Übertragungsmitteln erreichbare optimale Traktionsverhalten aufweist, und dass die Energiezufuhr zum Antriebsmotor wie auch die Übertragung von Signalen von zugehörigen Steuer- und Regelungseinrichtungen über lange, flexible Kabel erfolgen muss.The described system has the disadvantage that the belt used as a transmission means does not have the optimum traction behavior achievable with certain other belt-type transmission means, and that the power supply to the drive motor as well as the transmission of Signals from associated control and regulation devices must be made over long, flexible cable.

Ein weiteres Aufzugssystem mit zahnriemenartigem Übertragungsmittel ist aus der PCT-Patentanmeldung WO 99/43592 bekannt. Bei der beschriebenen und beanspruchten Anordnung ist der Antrieb im Gegengewicht integriert, und ein im Aufzugschacht fixiertes zahnriemenartiges Übertragungsmittel dient zum Übertragen der Antriebskraft zwischen Gegengewicht und Aufzugsschacht. Da die Aufzugkabine und das Ausgleichgewicht an einem vom genannten zahnriemenartigen Übertragungsmittel getrennten eigentlichen Tragmittel hängen, übertragen Antrieb und Übertragungsmittel nur die Differenzkraft zwischen dem Gegengewicht dem Gewicht der Aufzugkabine.Another elevator system with zahnriemenartigem transmission means is from the PCT Patent Application WO 99/43592 known. In the described and claimed arrangement, the drive is integrated in the counterweight, and a timing belt-like transmission means fixed in the elevator shaft serves to transmit the driving force between the counterweight and the elevator shaft. Since the elevator car and the balance weight depend on an actual suspension element separate from said timing belt transmission means, the drive and transmission means transmit only the differential force between the counterweight and the weight of the elevator car.

Dieses System weist dieselben Nachteile auf, wie das vorstehend beschriebene und hat den zusätzlichen Nachteil, dass für die Antriebsfunktion ein Zahnriemen und für die Tragfunktion ein anderes Mittel zum Einsatz kommen. Im Vergleich mit einem System, bei dem Antriebs- und Tragfunktion über dasselbe Mittel erfolgt, ist bei diesem System auch eine grössere Anzahl von Rollen oder Pulleys erforderlich.This system has the same disadvantages as described above and has the additional disadvantage that a toothed belt is used for the drive function and another means for the support function. Compared to a system where the drive and support functions are done by the same means, this system requires a larger number of pulleys or pulleys.

Ein andersartiges Aufzugssystem mit zahnriemenartigem Übertragungsmittel ist aus dem US-Patent 5,191,920 bekannt. In dem gezeigten Aufzugsystem steht das zahnriemenartige Übertragungsmittel im Aufzugschacht still. Die Antriebseinheit befindet sich an der Aufzugkabine bzw. an dem sogenannten Lastaufnahmemittel.A different elevator system with timing belt-like transmission means is from the U.S. Patent 5,191,920 known. In the elevator system shown, the timing belt-like transmission means is stationary in the elevator shaft. The drive unit is located on the elevator car or on the so-called load-receiving means.

Dieses System weist daher dieselben Nachteile auf, wie das in WO 99/43602 beschriebene. Ein zusätzlicher Nachteil ist hier, dass durch den Aufzugsantrieb das Gewicht des Lastaufnahmemittels und somit die erforderliche Antriebsleistung erhöht wird.This system therefore has the same disadvantages as that in WO 99/43602 described. An additional disadvantage is here, that the weight of the load-receiving means and thus the required drive power is increased by the elevator drive.

Die in den genannten Dokumenten offenbarten Riemen weisen gewisse Nachteile auf. Flachriemen haben in Aufzugseinrichtungen mit im Verhältnis zur Nutzlast leichten Aufzugkabinen eine ungenügende Traktionsfähigkeit. Bei Zahnriemen besteht das Problem, dass diese nicht auf dem Antriebspulley rutschen, wenn die Aufzugkabine oder das Gegengewicht infolge einer Steuerungspanne auf ihren Endlagenpuffern aufliegen. Ausserdem ist die Zentrierung des Riemens auf den Riemenpulleys nicht problemlos zu realisieren. Es müssen gegebenenfalls spezielle Massnahmen an den Pulleys getroffen werden, um zu verhindern, dass der Riemen aus der zentralen Lage heraus läuft.The belts disclosed in the cited documents have certain disadvantages. Flat belts have insufficient traction capability in elevator facilities with elevator cabins that are lightweight relative to the payload. The problem with timing belts is that they do not slip on the drive pulley when the elevator car or counterweight is resting on its limit buffers due to a control failure. In addition, the centering of the belt on the Riemenpulleys is not easy to implement. Special measures may need to be taken on the pulleys to prevent the belt from running out of the central position.

Aus WO9943589 ist ein Aufzugssystem bekannt, das den Oberbegriff des unabhängigen Anspruchs 1 bildet.Out WO9943589 An elevator system is known, which forms the preamble of independent claim 1.

Die Aufgabe der Erfindung wird somit darin gesehen, eine Weiterentwicklung der Aufzugssysteme der eingangs genannten Art zu schaffen, welche Nachteile der bekannten Systeme reduziert oder vermeidet.The object of the invention is thus seen to provide a further development of the elevator systems of the type mentioned, which reduces or avoids the disadvantages of the known systems.

Die Lösung dieser Aufgabe ist in den Patentansprüchen definiert.The solution to this problem is defined in the patent claims.

Das erfindungsgemässe Aufzugssystem weist eine Aufzugkabine, einen Antrieb, riemenartige Übertragungsmittel, vorzugsweise einen Keilrippen-Riemen, und ein Gegengewicht auf. Der Antrieb ist stationär und die Übertragungsmittel wirken mit dem Antrieb zusammen, um die Aufzugkabine durch Übertragung einer Kraft zu bewegen.The elevator system according to the invention comprises an elevator car, a drive, belt-like transmission means, preferably a V-ribbed belt, and a counterweight. The drive is stationary and the transfer means cooperate with the drive to move the elevator car by transmitting a force.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen und mit Bezug auf die Zeichnung beschrieben. Es zeigen:

Fig. 1A
ein erstes nicht zur Erfindung gehörendes Aufzugssystem, in stark vereinfachter und schematisierter Schnittdarstellung, mit einem Keilrippen-Riemen als Übertragungsmittel.
Fig. 1B
das erste nicht zur Erfindung gehörendes Aufzugssystem, in stark vereinfachter und schematisierter Draufsicht, mit einem Keilrippen-Riemen als Übertragungsmittel.
Fig. 2
ein zweites nicht zur Erfindung gehörendes Aufzugssystem, in stark vereinfachter und schematisierter Draufsicht, mit einem Keilrippen-Riemen als Übertragungsmittel.
Fig. 3
ein drittes Aufzugssystem, in stark vereinfachter und schematisierter Draufsicht, mit einem Keilrippen-Riemen als Übertragungsmittel.
Fig. 11
ein weiteres nicht zur Erfindung gehörendes Aufzugssystem, in stark vereinfachter und schematisierter Draufsicht.
Fig. 12
einen weiteren Motor, in stark vereinfachter und schematisierter Darstellung, der als Antrieb für verschiedene Aufzugssystem gemäss Erfindung geeignet ist.
Fig. 13
ein erfindungsgemässes Übertragungsmittel in Form eines Keilrippen-Riemens.
Fig. 14
einen weiteren Keilrippen-Riemen, gemäss Erfindung.
Fig. 15
einen weiteren Keilrippen-Riemen, gemäss Erfindung.
Fig. 16
einen weiteren erfindungsgemässen Keilrippen-Riemen mit Zugschicht.
Fig. 17
ein erfindungsgemässes Übertragungsmittel in Form eines Flachriemens.
Fig. 18
ein Riemenpulley mit Bordscheiben.
In the following the invention will be described by means of embodiments and with reference to the drawing. Show it:
Fig. 1A
a first not belonging to the invention elevator system, in a highly simplified and schematic sectional view, with a V-ribbed belt as a transmission means.
Fig. 1B
the first not belonging to the invention elevator system, in a highly simplified and schematic plan view, with a V-ribbed belt as a transmission means.
Fig. 2
a second not belonging to the invention elevator system, in a highly simplified and schematic plan view, with a V-ribbed belt as a transmission means.
Fig. 3
a third elevator system, in a highly simplified and schematized plan view, with a V-ribbed belt as a means of transmission.
Fig. 11
Another not belonging to the invention elevator system, in a highly simplified and schematic plan view.
Fig. 12
another engine, in a highly simplified and schematic representation, which is suitable as a drive for various elevator system according to the invention.
Fig. 13
an inventive transmission means in the form of a V-ribbed belt.
Fig. 14
another V-ribbed belt, according to the invention.
Fig. 15
another V-ribbed belt, according to the invention.
Fig. 16
a further inventive V-ribbed belt with tension layer.
Fig. 17
an inventive transmission means in the form of a flat belt.
Fig. 18
a belt pulley with flanged wheels.

Detaillierte BeschreibungDetailed description

In den folgenden Ausführungsformen kommen vorzugsweise sogenannte Keilrippen-Riemen - auch Keilrippenriemen genannt - zum Einsatz. Ein solcher Keilrippen-Riemen kann vorteilhafterweise als reibschlüssiges (haftschlüssiges) Trag- und/oder Antriebselement (Übertragungsmittel) für eine Aufzugkabine mit Gegengewicht eingesetzt werden. Der Keilrippen-Riemen ermöglicht, bei ähnlichen Laufeigenschaften wie ein Flachriemen, durch seine Form ein höheres Seilkraftverhältnis. Im Falle eines durch ein Riemenpulley angetriebenen Riemens bedeutet ein hohes Seilkraftverhältnis, dass die Zugkraft im auf das Riemenpulley auflaufenden (gezogenen) Trum des Riemens wesentlich höher sein kann, als im gleichzeitig vom Riemenpulley ablaufenden Trum. Bei der Anwendung eines Keilrippen-Riemen als Übertragungsmittel für eine Aufzugkabine mit Gegengewicht wirkt sich dieser Vorteil darin aus, dass auch eine sehr leichtgebaute Aufzugkabine mit einem viel schwereren Gegengewicht zusammenwirken kann, ohne dass das Übertragungsmittel auf dem Antriebspulley rutscht.In the following embodiments are preferably called V-ribbed belts - also called V-ribbed belt - are used. Such a V-ribbed belt can advantageously be used as a frictional (adhesive) support and / or drive element (transmission means) for an elevator car with counterweight. The V-ribbed belt allows, with similar running characteristics as a flat belt, by its shape a higher rope force ratio. In the case of a belt driven by a belt pulley, a high rope force ratio means that the tension in the belt pulley running (pulled) strand of the belt can be substantially higher than in the belt running from the belt pulley at the same time. When using a V-ribbed belt as a transfer means for a counterweight elevator car, this advantage has the effect that even a very lightweight elevator car can interact with a much heavier counterweight without the transfer means slipping on the drive pulley.

Wie in den Fig. 13 bis 15 gezeigt, weist der Keilrippen-Riemen 13 mehrere in Längsrichtung parallel angeordnete keilförmige Rillen 5 und Keilrippen 6 auf. Diese keilförmigen Rillen 5 und Keilrippen 6 ermöglichen durch ihre Keilwirkung ein Seilkraftverhältnis von mehr als 2 bei einem Umschlingungswinkel von 180 Grad.As shown in FIGS. 13 to 15 , the V-ribbed belt 13 has a plurality of wedge-shaped grooves 5 and V-ribs 6 arranged in parallel in the longitudinal direction. These wedge-shaped grooves 5 and V-ribs 6 allow by their wedge effect a cable force ratio of more than 2 at a wrap angle of 180 degrees.

Es ist ein weiterer Vorteil des Keilrippen-Riemens 13, dass er sich auf den ihn antreibenden oder führenden Pulleys selbst zentriert. Vorzugsweise wird der Keilrippen-Riemen 13 auf der Rückseite (d.h. auf der Seite, die keine keilförmigen Rillen 5 bzw. Keilrippen 6 aufweist) mit einer Führungsrippe 2 versehen, wie in Fig. 15 gezeigt. Diese Führungsrippe 2 hat die Aufgabe, bei einer Gegenbiegung des Keilrippen-Riemens, d. h. , wenn dieser ein Pulley mit gegen das Pulley gerichteter Riemen-Rückseite umläuft, den Keilrippen-Riemen in einer in der Lauffläche des Pulleys vorhandenen Führungsrille zu führen.It is a further advantage of the V-ribbed belt 13 that it centers itself on the pulleys driving or guiding it. Preferably, the V-ribbed belt 13 on the back side (that is, on the side having no wedge-shaped grooves 5 or V-ribs 6) is provided with a guide rib 2, as shown in FIG . This guide rib 2 has the task, in a reverse bending of the V-ribbed belt, ie, when this rotates a pulley with directed against the pulley belt back, to guide the V-ribbed belt in a present in the running surface of the pulley guide groove.

Für die erfindungsgemässe Anwendung ist es von Vorteil, wenn die keilförmigen Rillen 5 der Keilrippen-Riemen 13 einen Rillenwinkel b von 80 Grad bis 100 Grad aufweisen. Vorzugsweise beträgt der Rillenwinkel b ca. 90 Grad. Dieser Rillenwinkel b ist wesentlich grösser als bei herkömmlichen Keilrippen-Riemen. Durch den grösseren Rillenwinkel b erreicht man eine Reduktion des Laufgeräusches. Die selbstzentrierende Eigenschaft wie auch ein (vorstehend definiertes) erhöhtes Seilkraftverhältnis bleiben aber erhalten.For the application according to the invention, it is advantageous if the wedge-shaped grooves 5 of the V-ribbed belts 13 have a groove angle b of 80 degrees to 100 degrees. Preferably, the groove angle b is about 90 degrees. This groove angle b is much larger than in conventional V-ribbed belts. The larger groove angle b achieves a reduction of the running noise. The self-centering property as well as an increased cable force ratio (defined above) are retained.

In einer weiteren Ausführungsform ist der Keilrippen-Riemen 13 auf der Rückseite, wie in Fig. 13 gezeigt, mit einer Schicht 4 versehen, die vorzugsweise gute Gleiteigenschaften hat. Diese Schicht 4 kann zum Beispiel eine Gewebeschicht sein. Bei mehrfach umgehängten Aufzugssystemen erleichtert dies die Montage.In a further embodiment, the V-ribbed belt 13 on the rear side, as shown in Fig. 13 , is provided with a layer 4, which preferably has good sliding properties. This layer 4 may be, for example, a fabric layer be. For multiple suspended elevator systems this facilitates the assembly.

Ein weiterer Keilrippen-Riemen 13 ist in Fig. 14 gezeigt. Dieser Keilrippen-Riemen hat sowohl keilförmige Rillen 5 und Rippen 6, die in Längsrichtung angelegt sind, als auch Querrillen 3. Diese Querrillen 3 verbessern die Biege-Flexibilität des Keilrippen-Riemens, so dass dieser mit Riemenpulleys mit reduziertem Durchmesser zusammenwirken kann.Another V-ribbed belt 13 is shown in FIG . This V-ribbed belt has both wedge-shaped grooves 5 and ribs 6 applied longitudinally, as well as lateral grooves 3. These transverse grooves 3 enhance the flexing flexibility of the V-ribbed belt so that it can cooperate with reduced diameter belt pulleys.

In den Fig. 13, 14 und 15 ist auch zu erkennen, dass das Übertragungsmittel (Keilrippen-Riemen 13) in dessen Längsrichtung orientierte Zugträger 1 enthält, die aus metallischen Litzen (z.B. Stahllitzen) oder nicht-metallischen Litzen (z.B. aus Chemiefasern) bestehen. Solche Zugträger 1 verleihen den erfindungsgemässen Übertragungsmitteln die erforderliche Zugfestigkeit und/oder Längssteifigkeit. Eine bevorzugte Ausführungsform der Übertragungsmittel enthält Zugträger 1 aus Zylonfasern. Zylon ist ein Handelsname der Firma Toyobo Co. Ltd., Japan, und betrifft Chemiefasern aus Poly(p-phenylene-2,6-benzobisoxazole) (PBO). Diese Fasern übertreffen in den für die erfindungsgemässe Anwendung entscheidenden Eigenschaften diejenigen von Stahllitzen und von anderen bekannten Fasern. Die Längsdehnung und das Metergewicht des Übertragungsmittels können durch die Verwendung von Zylon-Fasern reduziert werden, wobei die Bruchkraft gleichzeitig höher ausfällt.It can also be seen in FIGS. 13, 14 and 15 that the transmission means (V-ribbed belt 13) contains tension members 1 oriented in the longitudinal direction, which consist of metallic strands (eg steel strands) or non-metallic strands (eg of manmade fibers) , Such tension members 1 impart the required tensile strength and / or longitudinal rigidity to the transfer means according to the invention. A preferred embodiment of the transmission means comprises tension members 1 made of Zylon fibers. Zylon is a trade name of Toyobo Co. Ltd., Japan, and refers to manmade fibers of poly (p-phenylene-2,6-benzobisoxazole) (PBO). These fibers surpass those of steel strands and other known fibers in the properties which are decisive for the application according to the invention. The elongation and the meter weight of the transfer means can be reduced by the use of Zylon fibers, whereby the breaking force is higher at the same time.

Idealerweise sollten die Zugträger 1 so im Keilrippen-Riemen eingebettet sein, dass sich benachbarte Fasern oder Litzen nicht berühren. Als ideal hat sich ein Füllungsgrad, d. h. ein Verhältnis zwischen dem Gesamtquerschnitt aller Zugträger und dem Querschnitt des Riemens, von mindestens 20% erwiesen.Ideally, the tension members 1 should be embedded in the V-ribbed belt so that adjacent fibers or strands do not touch each other. A degree of filling, ie a ratio between the total cross section of all tension members, is ideal and the cross-section of the belt, proven by at least 20%.

Fig. 16 zeigt eine als Übertragungsmittel für Aufzugssysteme ebenfalls geeignete Ausführungsform des Keilrippen-Riemens 13. Anstelle der im Zusammenhang mit Fig. 13-15 erwähnten Zugträger aus metallischen oder nichtmetallischen Litzen, bildet hier eine flächige Zugschicht 51 den Kern des Keilrippen-Riemens 13, wobei diese Zugschicht 51 sich im Wesentlichen über die gesamte Riemenlänge und die gesamte Riemenbreite erstreckt. Die Zugschicht 51 kann aus einer unverstärkten Materialschicht, beispielsweise aus einer Polyamidfolie, bestehen, oder aus einer mit Chemiefasern verstärkten Folie gebildet sein. Eine solche verstärkte Folie könnte beispielsweise die vorstehend genannten Zylon-Fasern, eingebettet in eine geeignete Kunststoff-Matrix, enthalten.
Die Zugschicht 51 verleiht dem Flachriemen die erforderliche Zug- und Kriechfestigkeit, ist aber auch genügend flexibel, um eine ausreichend hohe Zahl von Biegevorgängen beim Umlenken um ein Riemenpulley ertragen zu können.
Die Keilrippen-Schicht 53 kann beispielsweise aus Polyurethan oder aus einem NBR-Elastomer (Nitrile Butadiene Rubber) bestehen und ist ganz- oder teilflächig, direkt oder über eine Zwischenschicht mit der Zugschicht 51 verbunden. Die Rückseite des Keilrippen-Riemens weist eine wie die Keilrippen-Schicht mit der Zugschicht 51 verbundene Deckschicht 54 auf, die vorteilhafterweise als Gleitbelag ausgeführt ist. Zwischen den genannten Haupt-Schichten können Zwischenschichten (hier nicht dargestellt) vorhanden sein, die die erforderliche Haftung zwischen den genannten Schichten vermitteln und/oder die Flexibilität des Übertragungsmittels erhöhen. Dieser mit einer ganzflächigen Zugschicht versehene Keilrippen-Riemen kann auch eine wie bereits im Zusammenhang mit Fig. 15 beschriebene Führungsrippe aufweisen. FIG. 16 shows an embodiment of the V-ribbed belt 13 which is likewise suitable as transmission means for elevator systems. Instead of the tension members of metallic or non-metallic strands mentioned in connection with FIGS. 13-15, a flat tension layer 51 forms the core of the V-ribbed belt 13. this tension layer 51 extends substantially over the entire belt length and the entire belt width. The tension layer 51 can consist of an unreinforced material layer, for example of a polyamide film, or be formed of a film reinforced with synthetic fibers. Such a reinforced film could, for example, contain the aforementioned Zylon fibers embedded in a suitable plastic matrix.
The tension layer 51 gives the flat belt the required tensile and creep resistance, but is also sufficiently flexible to withstand a sufficiently high number of bending operations when deflecting around a belt pulley.
The V-ribbed layer 53 can be made, for example, of polyurethane or of an NBR elastomer (nitrile butadiene rubber) and is connected over the whole or part of the surface, directly or via an intermediate layer, to the tension layer 51. The rear side of the V-ribbed belt has a cover layer 54 connected to the tension layer 51 like the V-ribbed layer, which is advantageously designed as a sliding covering. Intermediate layers (not shown) may be present between said major layers to provide the necessary adhesion between said layers and / or increase the flexibility of the transfer medium. This provided with an all-over tension layer V-ribbed belts can also have a guide rib as already described in connection with FIG. 15.

In Fig 17 ist ein weiteres in Aufzugssystemen anwendbares Übertragungsmittel dargestellt, das sich zur Lösung der erfindungsgemässen Aufgabe eignet. Es handelt sich dabei um einen aus mehreren Schichten unterschiedlicher Materialien aufgebauten Flachriemen 50. Der Flachriemen enthält im Kern wenigstens eine flächige Zugschicht 51, die beispielsweise aus einer unverstärkten Polyamidfolie besteht, oder aus einer Kunststoff-Folie, die mit in die Kunststoffmatrix eingebetteten Chemiefasern verstärkt ist. Diese Zugschicht 51 verleiht dem Flachriemen die erforderliche Zug- und Kriechfestigkeit, ist aber auch genügend flexibel, um eine ausreichend hohe Zahl von Biegevorgängen beim Umlenken um ein Riemenpulley ertragen zu können. Der Flachriemen 50 weist ausserdem eine äussere, vorderseitige Reibschicht 55, beispielsweise aus einem NBR-Elastomer (Nitrile Butadiene Rubber) auf, sowie eine äussere, rückseitige Deckschicht 54, die, je nach Aufzugssystem, als Reib- oder Gleitbelag ausgeführt ist. Zwischen den genannten Haupt-Schichten können Zwischenschichten 56 vorhanden sein, die die erforderliche Haftung zwischen den genannten Schichten vermitteln und/oder die Flexibilität des Flachriemens erhöhen. Zwecks Optimierung des vorerwähnten Seilkraftverhältnisses sind Reibschichten mit Reibwerten von 0,5 bis 0,7 gegenüber Stahlpulleys verfügbar, die zudem sehr abriebbeständig sind. Die seitliche Führung des Flachriemens 50 wird üblicherweise, wie in Fig. 18 dargestellt, durch an den Pulleys 16 angebrachte Bordscheiben 57 gewährleistet, eventuell in Kombination mit einer Bombierung der Pulley-Laufflächen. FIG. 17 shows another transmission means which can be used in elevator systems and which is suitable for achieving the object according to the invention. It is a flat belt 50 composed of several layers of different materials. The flat belt contains at least one flat tensile layer 51 in the core, which consists for example of an unreinforced polyamide film, or of a plastic film reinforced with chemical fibers embedded in the plastic matrix , This tension layer 51 gives the flat belt the required tensile and creep resistance, but is also sufficiently flexible to withstand a sufficiently high number of bending operations when deflecting around a belt pulley. The flat belt 50 also has an outer, front-side friction layer 55, for example made of an NBR elastomer (nitrile butadiene rubber), as well as an outer, back-side cover 54, which, depending on the elevator system, is designed as a friction or sliding coating. Intermediate layers 56 may be present between said main layers to provide the required adhesion between said layers and / or to increase the flexibility of the flat belt. In order to optimize the aforementioned rope force ratio friction layers are available with coefficients of friction of 0.5 to 0.7 compared to steel pulleys, which are also very resistant to abrasion. The lateral guidance of the flat belt 50 is usually ensured, as shown in Fig. 18, by attached to the pulleys 16 flanges 57, possibly in combination with a crowning of the pulley treads.

Eine nicht zur Erfindung gehörende Ausführungsform eines Aufzugssystems 10 ist in Fig. 1A und 1B dargestellt. Fig. 1A zeigt einen Schnitt durch das Kopfende des Aufzugschachtes 11. Die Aufzugkabine 12 wie auch ein Gegengewicht 15 werden über ein Keilrippen-Riemen-Übertragungsmittel 13 innerhalb des Schachtes 11 bewegt. Zu diesem Zweck ist ein stationärer Antrieb 14 vorgesehen, der über ein Antriebspulley 16.1 auf das Keilrippen-Riemen-Übertragungsmittel 13 einwirkt. Der Antrieb 14 ist auf einer Konsole 9 montiert, die auf oder an einer oder mehreren Führungsschienen 18 des Aufzugssystems abgestützt ist. In einer anderen Ausführungsform kann die Konsole 9 in oder an der Schachtwand abgestützt sein. Das Keilrippen-Riemen-Übertragungsmittel 13 ist an seinem einen Ende im Bereich der Konsole 9 fixiert, führt von diesem Fixpunkt aus abwärts zu einem Aufhängungspulley 16.2 eines Gegengewichts 15, umschlingt dieses Aufhängungspulley 16.2, führt aufwärts zum Antriebspulley 16.1, umschlingt dieses, führt abwärts zu einem unterhalb der Aufzugkabine 12 an dieser angebrachten ersten Umlenkpulley 16.3, von dort aus horizontal unter der Aufzugkabine 12 hindurch zu einem zweiten unterhalb der Aufzugkabine 12 an dieser angebrachten Umlenkpulley 16.3 und anschliessend wieder aufwärts zu einem zweiten, als Supportstruktur 8 bezeichneten Fixpunkt. Je nach Drehrichtung des Antriebes 14 wird die Kabine 12 über das Keilrippen-Riemen-Übertragungsmittel 13 auf- oder abwärts bewegt.
Die durch die beiden Kabinenführungsschienen 18 gebildete Führungsebene 20 ist, wie in Fig. 1B gezeigt, gegenüber dem unter der Aufzugkabine 12 hindurchführenden Strang des Keilrippen-Riemen-Übertragungsmittel 13, d. h. gegenüber der Querachse der Aufzugkabine 12, um einem Winkel a von 15 bis 20 Grad verdreht angeordnet. Dadurch können die Kabinenführungsschienen ausserhalb des vom Keilrippen-Riemen-Übertragungsmittel 13 und den Riemenpulleys beanspruchten Raums platziert werden, wodurch erreicht wird, dass einerseits die Achse des unter der Aufzugkabine 12 hindurchführenden Strangs des Keilrippen-Riemen-Übertragungsmittel 13 unterhalb des Kabinenschwerpunkts S angeordnet werden kann, wenn dieser in der durch die Kabinenführungsschienen 18 gebildete Führungsebene 20 liegt. Ausserdem wird damit die beanspruchte Schachtbreite minimiert.An embodiment of an elevator system 10 not belonging to the invention is illustrated in FIGS. 1A and 1B . Fig. 1A shows a section through the head end of the elevator shaft 11. The elevator car 12 as well as a counterweight 15 are moved via a V-ribbed belt transmission means 13 within the shaft 11. For this purpose, a stationary drive 14 is provided which acts on the V-ribbed belt transmission means 13 via a drive pulley 16.1. The drive 14 is mounted on a bracket 9 which is supported on or on one or more guide rails 18 of the elevator system. In another embodiment, the console 9 may be supported in or on the shaft wall. The V-ribbed belt transmission means 13 is fixed at its one end in the region of the bracket 9, leads from this fixed point down to a suspension pulley 16.2 of a counterweight 15, wraps around this suspension pulley 16.2, leads up to the Antriebspulley 16.1, wraps around this, leading downwards a below the elevator car 12 attached to this first Umlenkpulley 16.3, from there horizontally below the elevator car 12 through to a second below the elevator car 12 attached to this Umlenkpulley 16.3 and then back up to a second, referred to as support structure 8 fixed point. Depending on the direction of rotation of the drive 14, the car 12 is moved up or down via the V-ribbed belt transmission means 13.
The guide plane 20 formed by the two car guide rails 18 is, as shown in FIG. 1B , opposite the strand of the V-ribbed belt transmission means 13 passing under the elevator car 12, ie opposite the transverse axis of the elevator car 12, at an angle a of 15 to 20 Degree twisted arranged. This allows the car guide rails outside of the V-ribbed belt transmission means 13 and the belt pulley claimed space, thereby ensuring that on the one hand the axis of the passing under the elevator car 12 strand of the V-ribbed belt transmission means 13 can be arranged below the car's center of gravity S, when this in the guide plane formed by the car guide rails 18 20th lies. In addition, the claimed shaft width is minimized.

Mit der Anordnung des unter der Aufzugkabine 12 hindurchführenden Strangs des Keilrippen-Riemen-Übertragungsmittels 13 unterhalb des Kabinenschwerpunkts S werden die zwischen Aufzugkabine 12 und Kabinenführungsschienen 18 auftretenden Führungskräfte im Normalbetrieb so gering wie möglich gehalten, und dadurch, dass der Schwerpunkt S in der Führungsebene 20 liegt, werden die Führungskräfte minimiert, wenn Fangbremsen an den Kabinenführungsschienen 18 angreifen.With the arrangement of passing under the elevator car 12 strand of the V-ribbed belt transmission means 13 below the car's center of gravity S occurring between the elevator car 12 and car guide rails 18 executives are kept as low as possible during normal operation, and in that the center of gravity S in the management level 20th is located, the executives are minimized when catch brakes on the cabin guide rails 18 attack.

Bei der dargestellten Anordnung des Keilrippen-Riemen-Übertragungsmittels 13, des Aufhängungspulleys 16.2 und der unterhalb der Aufzugkabine 12 angebrachten Umlenkpulleys 16.3 ergibt sich ein Verhältnis von Keilrippen-Riemen-Geschwindigkeit zu Kabinen- und Gegengewichtsgeschwindigkeit von 2:1 (2:1-Umhängung). Dadurch wird gegenüber einer 1:1-Umhängung das vom Antrieb 14 aufzubringende Drehmoment auf die Hälfte reduziert.In the illustrated arrangement of the V-ribbed belt transmission means 13, the suspension pulley 16.2 and the deflection pulley 16.3 mounted below the elevator car 12, the ratio of V-ribbed belt speed to cabin and counterweight speed is 2: 1 (2: 1 suspension). , As a result, the torque to be applied by the drive 14 is reduced in half compared to a 1: 1 suspension.

Da der bei Keilrippen-Riemen erforderliche Mindestradius an Antriebs- und Umlenkpulleys wesentlich geringer ist als bei den im Aufzugbau bisher üblichen Stahldraht-Tragseilen, ergeben sich mehrere Vorteile. Dank entsprechend reduziertem Durchmesser des Antriebspulleys 16.1, reduzieren sich das am Antrieb 14 erforderliche Drehmoment und somit die Abmessungen des Antriebs. Dadurch, und dank den ebenfalls in ihren Durchmessern reduzierten Umlenkpulleys 16.2 und 16.3, ist die in Fig. 1 und 2 dargestellte Art der Ausführung und Anordnung des Aufzugs relativ kompakt und kann wie gezeigt im Schacht 11 untergebracht werden. Die geringe Grösse der an der Kabine 12 angebrachten Umlenkpulleys 16.3 erlaubt, den üblicherweise als Unterflasche 17 bezeichneten Unterbau unterhalb der Aufzugkabine 12, in welchem diese Umlenkpullevs 16.3 eingebaut sind, mit geringen Abmessungen auszuführen. Vorzugsweise kann diese Unterflasche 17 mit den Umlenkpulleys 16.3 sogar in den Kabinenboden integriert werden.Since the minimum radius of drive and deflection pulleys required for V-ribbed belts is substantially lower than for the steel wire suspension cables hitherto customary in elevator construction, several advantages result. Thanks to the reduced diameter of the drive pulley 16.1, the am Drive 14 required torque and thus the dimensions of the drive. Thereby, and thanks to the deflection pulleys 16.2 and 16.3, which are also reduced in their diameters, the type of construction and arrangement of the elevator shown in FIGS. 1 and 2 is relatively compact and can be accommodated in the shaft 11 as shown. The small size of the deflecting pulley 16.3 mounted on the cabin 12 allows the substructure, usually referred to as bottom block 17, to be designed with small dimensions below the elevator car 12, in which these deflecting pulleys 16.3 are installed. Preferably, this lower bottle 17 can be integrated with the Umlenkpulleys 16.3 even in the cabin floor.

Ein Querschnitt durch eine ähnliche ebenfalls nicht zur Erfindung gehörende Ausführungsform ist in Fig. 2 gezeigt. Die Aufzugkabine 12 wird über ein Keilrippen-Riemen-Übertragungsmittel 13 innerhalb des Schachtes 11 bewegt. Zu diesem Zweck ist ein stationärer Antrieb 14 vorgesehen, der das Keilrippen-Riemen-Übertragungsmittel 13 antreibt. Es sind mehrere Pulleys vorgesehen, um das Keilrippen-Riemen-Übertragungsmittel 13 entsprechend zu führen. Im gezeigten Ausführungsbeispiel ist der Antrieb 14 stationär über der oberen Endlage des Gegengewichtes 15 angebracht. Der Antrieb 14 ist auf einer Konsole 9 montiert, die auf oder an einer oder mehreren Führungsschienen 18 des Aufzugssystems 10 abgestützt ist. In dem gezeigten Beispiel liegt die Unterflasche 17 rechtwinklig zu den Seitenwänden des Aufzugschachtes 11 in der Zeichnungsebene. Durch die Anordnung des Keilrippen-Riemen-Übertragungsmittels 13 unterhalb des Kabinenschwerpunkts S, treten an den Kabinenführungsschienen 18 nur geringe Führungskräfte auf. Im übrigen gleicht diese zweite Ausführungsform im wesentlichen der ersten Ausführungsform. Die Kabinenführungsschienen 18 sind exzentrisch angeordnet, d.h. die Führungsebene 20 befindet sich zwischen der Kabinentüre 7 und dem Schwerpunkt S der Aufzugkabine 12, der im gezeigten Fall auf der Mittelachse des Keilrippen-Riemen-Übertragungsmittels 13 liegt. In der gezeigten Ausführung ist das Gegengewicht 15 mit dem Umlenkpulley 16.2 und die Kabine 12 mit den Umlenkpulleys 16.3 2:1 aufgehängt (2:1 - Umhängung).A cross-section through a similar embodiment not belonging to the invention is shown in FIG . The elevator car 12 is moved via a V-ribbed belt transmission means 13 within the shaft 11. For this purpose, a stationary drive 14 is provided which drives the V-ribbed belt transmission means 13. Several pulleys are provided to guide the V-ribbed belt transmission means 13 accordingly. In the embodiment shown, the drive 14 is mounted stationarily above the upper end position of the counterweight 15. The drive 14 is mounted on a bracket 9 which is supported on or on one or more guide rails 18 of the elevator system 10. In the example shown, the lower block 17 is at right angles to the side walls of the elevator shaft 11 in the plane of the drawing. Due to the arrangement of the V-ribbed belt transmission means 13 below the car center of gravity S, only slight guiding forces occur on the car guide rails 18. Incidentally, this second embodiment is substantially similar to the first embodiment. The car guide rails 18 are arranged eccentrically, ie the guide plane 20 is located between the car door 7 and the center of gravity S of the elevator car 12, which in the case shown lies on the central axis of the V-ribbed belt transmission means 13. In the embodiment shown, the counterweight 15 with the Umlenkpulley 16.2 and the cabin 12 with the Umlenkpulleys 16.3 2: 1 suspended (2: 1 - suspension).

Fig. 3 zeigt einen Querschnitt durch eine erfindungsgemässe Ausführungsform eines Aufzugssystems 10. Der Antrieb 14 ist auf den Gegengewichtschienen 19 und auf einer der Kabinenschienen 18 abgestützt. Auf der gegenüberliegenden Seite ist der Fixpunkt des Keilrippen-Riemen-Übertragungsmittel 13 auf der zweiten Kabinenschiene 18 abgestützt. Auch in dieser Ausführungsform sind Kabine 12 und Gegengewicht 15 2:1 aufgehängt. Der diagonale Verlauf des Keilrippen-Riemen-Übertragungsmittels 13 ermöglicht eine in Bezug auf den Kabinenschwerpunkt S zentrisch geführte und zentrisch aufgehängte Kabine 12 mit den im Zusammenhang mit Fig 2 beschriebenen Vorteilen. 3 shows a cross section through an embodiment of an elevator system 10 according to the invention. The drive 14 is supported on the counterweight rails 19 and on one of the car rails 18. On the opposite side, the fixed point of the V-ribbed belt transmission means 13 is supported on the second car rail 18. Also in this embodiment, the car 12 and counterweight 15 2: 1 suspended. The diagonal course of the V-ribbed belt transmission means 13 allows a centrally guided with respect to the cabin center of gravity S and centrally suspended cabin 12 with the advantages described in connection with Figure 2 .

Eine weitere nicht zur Erfindung gehörende Ausführungsform ist in Fig. 11 gezeigt. Der Antrieb 14 befindet sich bei dem gezeigten Beispiel zwischen der Aufzugkabine 12 und der Wand des Schachtes 11. Die Aufzugkabine 12 und das Gegengewicht 15 werden auf gemeinsamen Führungsschienen 18 geführt. Zu diesem Zweck weisen diese Schienen ein spezielles Profil auf. Es können entweder Antriebspulleys 16.1 auf beiden Seiten des Antriebs 14 oder nur auf einer Seite des Antriebs 14 vorgesehen werden.Another embodiment not belonging to the invention is shown in FIG. 11 . The drive 14 is in the example shown between the elevator car 12 and the wall of the shaft 11. The elevator car 12 and the counterweight 15 are guided on common guide rails 18. For this purpose, these rails have a special profile. Either drive pulleys 16.1 can be provided on both sides of the drive 14 or only on one side of the drive 14.

Ein weiterer kompakter Antrieb 14 ist in Fig. 12 gezeigt. Dieser Antrieb 14 zeichnet sich dadurch aus, dass er zwei Antriebspulleys 16.1 aufweist. Der Antrieb 14 umfasst weiterhin einen Motor 40, eine Bremse 41 und eine durchgehende Welle 45. Die beiden Antriebspulleys 16.1 sitzen je an einem Ende der Welle 45. Der Antrieb 14 ist besonders für den seitlich oberhalb der Kabine 12 liegenden Einbau ausgelegt.Another compact drive 14 is shown in FIG . This drive 14 is characterized in that it has two drive pulleys 16.1. The drive 14 further comprises a motor 40, a brake 41 and a continuous shaft 45. The two drive pulleys 16.1 each sit at one end of the shaft 45. The drive 14 is particularly suitable for laid out laterally above the cabin 12 installation.

In einer weiteren Ausführungsform weist der Keilrippen-Riemen Zähne auf, die hochverschleissfest ausgeführt sind.In a further embodiment, the V-ribbed belt has teeth which are made highly wear-resistant.

Gemäss Erfindung ist der stationäre Antrieb entweder in einem Maschinenraum untergebracht, oder der Antrieb befindet sich im bzw. am Aufzugschacht.According to the invention, the stationary drive is either housed in a machine room, or the drive is located in or on the elevator shaft.

Claims (10)

  1. Lift system (10) with a drive (14) which co-operates with a lift cage (12) and a counterweight (15) by way of a transmission means (13) in order to move the lift cage (12) and the counterweight (15), by transmission of a force, in a lift shaft (11), wherein the lift cage (12) is guided on guide rails (18), wherein the drive (14) together with the drive pulley (16.1) is mounted in the upper region of the shaft (11), the transmission means (13) is guided over the drive pulley (16.1) as well as over a deflecting pulley (16.3) of the lift cage (12) and over a deflecting pulley (16.2) of the counterweight (15), wherein the drive (14) together with the drive pulley (16.1) is arranged on a longitudinal axis and wherein this longitudinal axis of the drive (14), an axis of the deflecting pulley (16.2) of the lift cage (12) and an axis of the deflecting pulley (16.2) of the counterweight (15) are arranged parallel to one another, characterised in that the longitudinal axis of the drive (14) is arranged to be turned relative to the adjacent wall of the shaft (11) through an acute angle..
  2. Lift system (10) with a drive (14) according to claim 1, characterised in that the drive (14) is arranged on a bracket (9, 37) supported on or at at least one guide rail (18, 19) or that the drive (14) is arranged on a bracket (9, 37) supported in or at the wall of the shaft (11).
  3. Lift system (10) with a drive (14) according to one of the preceding claims, characterised in that the drive (14) together with drive pulley (16.1) is arranged, considered in cross-section, between cage (12) and an adjacent wall of the shaft (11).
  4. Lift system (10) with a drive (14) according to claim 1, characterised in that an end of the transmission means (13) is fastened to the bracket (9).
  5. Lift system (10) with a drive (14) according to one of the preceding claims, characterised in that each transmission means (13) is arranged, from one fastening point thereof to the second fastening point thereof, substantially along a vertical plane.
  6. Lift system (10) with a drive (14) according to one of the preceding claims, characterised in that the deflecting pulley (16.3) of the lift cage is mounted below the lift cage (12).
  7. Lift system (10) with a drive (14) according to one of the preceding claims, characterised in that the transmission means (13) is a belt-like transmission means (13, 50).
  8. Lift system (10) with a drive (14) according to one of the preceding claims, characterised in that the drive (14) is provided with at least two drive pulleys (16.1).
  9. Lift system (10) with a drive (14) according to claim 8, characterised in that the drive pulleys (16.1) are arranged substantially at the ends, which are at both sides, of the longitudinal axis.
  10. Lift system (10) with a drive (14) according to one of claims 8 and 9, characterised in that the transmission means (13) is divided up into at least two strands of transmission means (13.1, 13.2), in correspondence with the at least two drive pulleys (16.1), and the at least two strands of transmission means (13.1, 13.2) are arranged parallel to one another and substantially centrally with respect to a cage centre of gravity S.
EP05103258A 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means Revoked EP1561720B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05103258A EP1561720B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01811132 2001-11-23
EP01811132 2001-11-23
EP02774244A EP1446348B1 (en) 2001-11-23 2002-11-20 Elevator with a belt-like transmission means, especially with a v-ribbed belt, serving as supporting and/or drive means
EP05103258A EP1561720B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP02774244A Division EP1446348B1 (en) 2001-11-23 2002-11-20 Elevator with a belt-like transmission means, especially with a v-ribbed belt, serving as supporting and/or drive means
EP02774244.4 Division 2002-11-20

Publications (3)

Publication Number Publication Date
EP1561720A2 EP1561720A2 (en) 2005-08-10
EP1561720A3 EP1561720A3 (en) 2005-10-26
EP1561720B1 true EP1561720B1 (en) 2008-01-02

Family

ID=8184263

Family Applications (9)

Application Number Title Priority Date Filing Date
EP05103258A Revoked EP1561720B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising a V-ribbed belt, as supporting and/or traction means
EP02774244A Expired - Lifetime EP1446348B1 (en) 2001-11-23 2002-11-20 Elevator with a belt-like transmission means, especially with a v-ribbed belt, serving as supporting and/or drive means
EP07108982A Revoked EP1834919B1 (en) 2001-11-23 2002-11-20 Lift system
EP05104453A Revoked EP1580156B1 (en) 2001-11-23 2002-11-20 Elevator comprising V-belt-like transmission means, particularly comprising ribbed V-belts, as carrying and/or traction means
EP05006057A Expired - Lifetime EP1547960B1 (en) 2001-11-23 2002-11-20 Elevator with belt like carrier means
EP05106721A Expired - Lifetime EP1604939B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising V-belts, as supporting and/or traction means
EP02776634A Expired - Lifetime EP1446351B1 (en) 2001-11-23 2002-11-22 Elevator system
EP02776633A Expired - Lifetime EP1446350B1 (en) 2001-11-23 2002-11-22 Elevator system
EP02776635A Expired - Lifetime EP1446352B1 (en) 2001-11-23 2002-11-22 Lift system

Family Applications After (8)

Application Number Title Priority Date Filing Date
EP02774244A Expired - Lifetime EP1446348B1 (en) 2001-11-23 2002-11-20 Elevator with a belt-like transmission means, especially with a v-ribbed belt, serving as supporting and/or drive means
EP07108982A Revoked EP1834919B1 (en) 2001-11-23 2002-11-20 Lift system
EP05104453A Revoked EP1580156B1 (en) 2001-11-23 2002-11-20 Elevator comprising V-belt-like transmission means, particularly comprising ribbed V-belts, as carrying and/or traction means
EP05006057A Expired - Lifetime EP1547960B1 (en) 2001-11-23 2002-11-20 Elevator with belt like carrier means
EP05106721A Expired - Lifetime EP1604939B1 (en) 2001-11-23 2002-11-20 Elevator comprising a belt-like transmission means, particularly comprising V-belts, as supporting and/or traction means
EP02776634A Expired - Lifetime EP1446351B1 (en) 2001-11-23 2002-11-22 Elevator system
EP02776633A Expired - Lifetime EP1446350B1 (en) 2001-11-23 2002-11-22 Elevator system
EP02776635A Expired - Lifetime EP1446352B1 (en) 2001-11-23 2002-11-22 Lift system

Country Status (19)

Country Link
US (5) US8210320B2 (en)
EP (9) EP1561720B1 (en)
JP (5) JP2005509578A (en)
CN (5) CN101062742A (en)
AT (9) ATE382578T1 (en)
AU (6) AU2002340704B2 (en)
BR (5) BR0216031B1 (en)
CA (4) CA2465031C (en)
CY (1) CY1105599T1 (en)
DE (8) DE50211492D1 (en)
DK (6) DK1604939T3 (en)
ES (9) ES2368262T3 (en)
HK (9) HK1068594A1 (en)
MX (3) MXPA04004787A (en)
NO (4) NO330310B1 (en)
NZ (1) NZ532893A (en)
PT (4) PT1561720E (en)
WO (4) WO2003043922A1 (en)
ZA (3) ZA200403134B (en)

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