EP3337749B1 - Belt pulley for an elevator system - Google Patents

Belt pulley for an elevator system Download PDF

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Publication number
EP3337749B1
EP3337749B1 EP16753389.2A EP16753389A EP3337749B1 EP 3337749 B1 EP3337749 B1 EP 3337749B1 EP 16753389 A EP16753389 A EP 16753389A EP 3337749 B1 EP3337749 B1 EP 3337749B1
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EP
European Patent Office
Prior art keywords
belt
roller
elevator system
longitudinal
contact surface
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EP16753389.2A
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German (de)
French (fr)
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EP3337749A1 (en
Inventor
Volker Zapf
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Inventio AG
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Inventio AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • B66B15/04—Friction sheaves; "Koepe" pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • 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
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to an elevator system and, in particular, to a configuration of a roller in this elevator system.
  • belt-like suspension elements which have tension members and a casing arranged around the tension members, are also used.
  • Such belt-like suspension elements like conventional steel cables, are guided over traction sheaves and pulleys in the elevator system.
  • belt-like suspension elements are not guided in grooves in the deflection rollers or drive pulleys, but rather the belt-like suspension elements essentially rest on the deflection rollers or drive pulleys.
  • suspension elements do not always run exactly perpendicular to an axis of deflection pulleys or traction sheaves.
  • An occurrence of diagonal pull can be caused on the one hand by a construction, or on the other hand by imprecise assembly of the elevator system.
  • As a result of such an inclined pulling of the suspension elements there is the risk that the suspension element will slip laterally from a deflection roller or from a drive pulley of the drive.
  • an attempt is made to guide the belt-like suspension elements laterally on pulleys or drive pulleys.
  • spherical pulleys are used on which such suspension elements are guided laterally to a certain extent.
  • belt-like suspension elements In order to prevent the belt-like suspension elements from derailing to the side, raised side edges are also used on the pulleys or traction sheaves.
  • belt-like suspension elements with longitudinal ribs and longitudinal grooves on the traction surface of the suspension element and on the traction surface of the deflection rollers or drive pulleys are known, which interlock and thus ensure lateral guidance of the belt-like suspension element on the deflection rollers or drive pulleys.
  • the traction mechanism consists of a traction mechanism and at least one traction sheave, with a sheathed tension member of the traction mechanism engaging in a corresponding groove in the traction disk.
  • the EP0509404A2 discloses a traction sheave in which the guide of the hoisting rope on the traction sheave is shaped by a radius groove with wedge-shaped flanks adjoining on both sides.
  • the EP1777189A1 shows a suspension element with ribs and a suspension element disk with grooves that fit onto the ribs.
  • Such a device should also be inexpensive to manufacture and robust in use.
  • a role configured in this way offers the advantage that a lateral derailment of the belt-like suspension element can be made very difficult or even prevented entirely.
  • By providing a retaining element close to the outermost longitudinal depression it can be ensured that a derailing suspension element is removed from the retaining element before it can move laterally. It has been observed that such belt-like suspension elements with longitudinal depressions have the tendency to rise up in the longitudinal depressions of the roller contact surface when pulled at an angle and possibly jump over into the next longitudinal depression of the roller contact surface.
  • the derailing belt-like suspension element is returned to the correct position by the retaining element before the belt-like suspension element can completely rise from the longitudinal depressions of the roller contact surface.
  • the guide surface of the retaining element has an undercut, so that the guide surface inclines over the belt-like suspension element.
  • the distance between the outermost longitudinal recess and the retaining element is less than 80% or less than 60% or less than 40% or less than 20% of half the longitudinal recess width of the roller contact surface.
  • this distance should be kept as small as possible, so that the belt-like suspension element can rise as little as possible in the longitudinal depressions of the roller contact surface before it is guided back into the longitudinal depressions by the retaining element.
  • this distance should not be too small so that the belt-like suspension element does not suffer damage to the retaining element in normal operation.
  • An ideal distance can thus be selected here depending on the design of the belt-like suspension element. It is essential that the distance is smaller than half the length of the longitudinal recess width of the roller contact surface, so that in any case a complete rise of the belt-like suspension element out of the longitudinal recesses can be prevented.
  • a suspension element height is essentially the same as a restraint element height. Such a dimensioning of the retaining element ensures that the laterally rising belt-like suspension element cannot protrude beyond the retaining element.
  • an edge of the retaining element which is exposed in the direction of the roller contact surface, is rounded. This has the advantage that the laterally derailing belt-like suspension element cannot be damaged on a sharp edge. The belt-like suspension element should be returned to its original position on the roller as gently as possible by the retaining element.
  • the guide surface is inclined more towards the belt-like suspension element, the further the guide surface is away from the axis of rotation.
  • the angle of the guide surface is between 0 ° and 15 ° or between 1 ° and 10 ° or between 2 ° and 8 ° or between 3 ° and 7 °.
  • an optimal inclination of the guide surface can be selected here.
  • a retaining element is arranged on each side of the roller contact surface. This has the advantage that it can effectively prevent lateral derailment on both sides of the roller.
  • the roller is a power roller and the roller contact surface is a traction surface.
  • the roller is a car deflection roller or a counterweight deflection roller.
  • the roller is another deflection roller in an elevator system.
  • roller types can be equipped with the retaining elements described here in an elevator installation.
  • diagonal pulls are to be expected on different rollers of an elevator system. Therefore, depending on the elevator system, it can be advantageous to equip one or more rollers with the retaining elements described here.
  • the longitudinal elevations of the belt-like suspension element are designed as wedge ribs and the longitudinal depressions of the roller contact surface are designed as wedge-shaped grooves.
  • the longitudinal elevations of the belt-like suspension element are designed as elevations with a partially circular cross section and the longitudinal depressions of the roller contact surface are designed as depressions with a partially circular cross section.
  • the retaining elements described here can be used in principle for various types of belt-like suspension elements with longitudinal elevations.
  • a number of other belt-like suspension elements with longitudinal elevations can of course be used.
  • a number of the longitudinal elevations of the belt-like suspension element is the same as a number of the longitudinal depressions of the roller contact surface.
  • the roller and the retaining element are formed in one piece. This has the advantage that the retaining element remains stable in its intended position.
  • FIG. 1 an exemplary embodiment of an elevator installation 1 is shown.
  • the elevator system 1 comprises a car 2, a counterweight 3, a drive and a belt-like suspension element 5.
  • the belt-like suspension element 5 is fixed in the elevator system 1 by a first suspension element attachment 7, guided over a counterweight pulley 10, guided over a drive roller 4, over two car pulleys 8 and secured in turn in the elevator system 1 by a second suspension element fastening 7.
  • the elevator installation 1 is arranged in a shaft 6.
  • the elevator system is not arranged in a shaft, but rather, for example, on an outer wall of a building.
  • the exemplary elevator installation 1 in Fig. 1 comprises a counterweight 3.
  • the elevator installation does not comprise a counterweight. Numerous other embodiments of an elevator system are also possible.
  • a roller 4, 8, 10 not according to the invention is shown.
  • This roller 4, 8, 10 can be used as a driving roller or as a car deflection roller or as a counterweight deflection roller or as another deflection roller in the elevator system.
  • the roller 4, 8, 10 has two retaining elements 17.
  • the retaining elements 17 are arranged in mirror image to one another.
  • Each retaining element 17 is arranged on one side of the roller contact surface 15.
  • the roller contact surface 15 comprises several longitudinal depressions 13.
  • the roller 4, 8, 10 has at least as many longitudinal depressions 13 as the belt-type one used Has support means longitudinal elevations.
  • the roller 4, 8, 10 is arranged so as to be rotatable about an axis of rotation 20.
  • the roller contact surface 15 of the roller 4, 8, 10 from the exemplary embodiment not according to the invention in FIG Fig. 2 is designed so that it is provided with a belt-like suspension element 5 according to FIG Figure 3B can work together.
  • the belt-like suspension element 5 in the embodiment according to FIG. Figure 3B comprises several longitudinal elevations 33 in the form of V-ribs. These wedge ribs are dimensioned so that they complementarily into the longitudinal recesses 13 of the contact surface 15 of the roller according to Fig. 2 can intervene.
  • the belt-like suspension element 5 in Figure 3B comprises several tension members 32 and a jacket 31 arranged around the tension members. The tension members 32 are arranged in a common plane. The longitudinal elevations 33 rise above this common plane of the tension members 32.
  • FIG 3A an alternative belt-like suspension element 5 is shown as an example.
  • the longitudinal elevations 33 in this embodiment are formed as elevations with a part-circular cross-section.
  • the tension members 32 are in each case arranged at least partially in these longitudinal elevations 33.
  • the jacket 31 surrounds all tension members 32 and thus connects the tension members 32 to form a common belt-like suspension element 5.
  • a roller for interacting with the belt-like suspension element 5 according to the exemplary embodiment in FIG Figure 3A is not shown. Such a role would have instead of the wedge-shaped longitudinal depressions 13, as shown in Fig. 2 are shown, longitudinal depressions with a part-circular cross-section.
  • Belt-like suspension means 5 shown by way of example, a whole series of further belt-like suspension means with longitudinal elevations are possible.
  • the tension members can be arranged in the jacket in various ways. For example, can several tension members can be arranged per longitudinal elevation, or precisely one tension member per longitudinal elevation can be provided.
  • the arrangement of the longitudinal elevations can be selected independently of the arrangement of the tension members.
  • Fig. 4 a section of an exemplary roller 4, 8, 10 not according to the invention and a section of a belt-like suspension element 5 cooperating therewith is shown.
  • the belt-like suspension element 5 has partially climbed out of the longitudinal depressions 13 and is prevented from further lateral upward movement by the retaining element 17.
  • the belt-like support means 5 is prevented from further lateral displacement and is returned to an intended position on the roller 4, 8, 10.
  • a distance 19 between an outermost longitudinal recess 13 and the retaining element 17 is designed to be smaller than half a longitudinal recess width 18 of the roller contact surface 15.
  • the distance 19 can be selected to be smaller or larger.
  • the distance 19 should, however, be chosen to be at least large enough that a guide surface 12 of the retaining element 17 does not hinder the belt-like suspension element 5 in its movement over the roller 4, 8, 10 in a normal operating state of the elevator system.
  • the retaining element 17 is essentially dimensioned in such a way that the belt-like suspension element 5 cannot protrude beyond the retaining element 17 in the event of a laterally upward movement.
  • a retaining element height 14 is approximately the same as a suspension element height 16.
  • the retaining element height 14 can be selected depending on the distance 19 and the design of the belt-like suspension element 5 so that the belt-like suspension element 5 cannot exceed the retaining element 17 at any time.
  • one edge of the retaining element 17 is also rounded, so that the belt-like suspension element is not damaged if it comes into contact with this edge.
  • Fig. 5 a section of an exemplary embodiment of the roll 4, 8, 10 according to the invention is shown.
  • the guide surface 12 of the retaining element 17 is inclined.
  • the guide surface 12 is thus inclined at an angle 11 from a perpendicular to the axis of rotation of the roller 4, 8, 10.
  • the angle 11 is approximately 5 °.
  • This inclination of the guide surface 12 ensures that the belt-like suspension element moving laterally only comes into contact tangentially with the guide surface 12, so that the belt-like suspension element is subject to as little wear as possible.
  • the inclination of the guide surface 12 has the effect that the belt-like suspension element is guided back down into the longitudinal depressions 13.
  • one edge of the retaining element 17 is rounded in order to prevent possible damage to the belt-like suspension element.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Handcart (AREA)
  • Pulleys (AREA)

Description

Die vorliegende Erfindung betrifft eine Aufzugsanlage und insbesondere eine Ausgestaltung einer Rolle in dieser Aufzugsanlage.The present invention relates to an elevator system and, in particular, to a configuration of a roller in this elevator system.

Bei Aufzugsanlagen werden zum Tragen und / oder Antreiben einer Aufzugskabine herkömmlicherweise Stahlseile als Tragmittel eingesetzt. Gemäss einer Weiterentwicklung solcher Stahlseile werden auch riemenartige Tragmittel, welche Zugträger und eine um die Zugträger angeordnete Ummantelung aufweisen, eingesetzt. Solch riemenartige Tragmittel sind, ähnlich wie herkömmliche Stahlseile, über Treibscheiben und Umlenkrollen in der Aufzugsanlage geführt. Im Gegensatz zu Stahlseilen werden riemenartige Tragmittel jedoch nicht in Rillen in den Umlenkrollen bzw. Treibscheiben geführt, sondern die riemenartigen Tragmittel liegen im Wesentlichen auf den Umlenkrollen bzw. Treibscheiben auf.In elevator systems, steel cables are conventionally used as suspension means for supporting and / or driving an elevator car. According to a further development of such steel cables, belt-like suspension elements, which have tension members and a casing arranged around the tension members, are also used. Such belt-like suspension elements, like conventional steel cables, are guided over traction sheaves and pulleys in the elevator system. In contrast to steel cables, however, belt-like suspension elements are not guided in grooves in the deflection rollers or drive pulleys, but rather the belt-like suspension elements essentially rest on the deflection rollers or drive pulleys.

Tragmittel laufen in Aufzugsanlagen nicht immer genau senkrecht zu einer Achse von Umlenkrollen bzw. Treibscheiben. Ein Auftreten von Schrägzug kann einerseits durch eine Konstruktion bedingt sein, oder andererseits durch ungenaue Montage der Aufzugsanlage verursacht werden. Durch solchen Schrägzug der Tragmittel besteht die Gefahr, dass das Tragmittel seitlich von einer Umlenkrolle bzw. von einer Treibscheibe des Antriebs abrutscht. Um dies zu verhindern, wird versucht, die riemenartigen Tragmittel seitlich auf Umlenkrollen bzw. Treibscheiben zu führen. So werden beispielsweise ballige Umlenkrollen eingesetzt, auf welchen derartige Tragmittel zu einem gewissen Grad seitlich geführt sind. Um seitliches Entgleisen der riemenartigen Tragmittel zu verhindern, werden auch hochgezogene Seitenränder an den Umlenkrollen bzw. Treibscheiben eingesetzt. Zudem sind auch riemenartige Tragmittel mit Längsrippen und Längsnutten auf der Traktionsfläche des Tragmittels sowie auf der Traktionsfläche der Umlenkrollen bzw. Treibscheiben bekannt, welche ineinander greifen und so eine seitliche Führung des riemenartigen Tragmittels auf den Umlenkrollen bzw. Treibscheiben gewährleisten.In elevator systems, suspension elements do not always run exactly perpendicular to an axis of deflection pulleys or traction sheaves. An occurrence of diagonal pull can be caused on the one hand by a construction, or on the other hand by imprecise assembly of the elevator system. As a result of such an inclined pulling of the suspension elements, there is the risk that the suspension element will slip laterally from a deflection roller or from a drive pulley of the drive. In order to prevent this, an attempt is made to guide the belt-like suspension elements laterally on pulleys or drive pulleys. For example, spherical pulleys are used on which such suspension elements are guided laterally to a certain extent. In order to prevent the belt-like suspension elements from derailing to the side, raised side edges are also used on the pulleys or traction sheaves. In addition, belt-like suspension elements with longitudinal ribs and longitudinal grooves on the traction surface of the suspension element and on the traction surface of the deflection rollers or drive pulleys are known, which interlock and thus ensure lateral guidance of the belt-like suspension element on the deflection rollers or drive pulleys.

Aus der DE102008037537A1 ist eine Aufzugsanlage mit einem Zugmitteltrieb gemäß dem Oberbegriff des Anspruchs 1 bekannt.From the DE102008037537A1 an elevator installation with a traction mechanism according to the preamble of claim 1 is known.

Der Zugmitteltrieb besteht aus einem Zugmittel und wenigstens einer Traktionsscheibe, wobei je ein ummantelter Zugträger des Zugmitteltriebs in eine korrespondierende Rille der Traktionsscheibe eingreift.The traction mechanism consists of a traction mechanism and at least one traction sheave, with a sheathed tension member of the traction mechanism engaging in a corresponding groove in the traction disk.

Die EP0509404A2 offenbart eine Treibscheibe, in welcher die Führung des Förderseils auf der Treibscheibe durch eine Radiusrille mit beidseitig anschliessenden, keilnutförmigen Flanken geformt ist.The EP0509404A2 discloses a traction sheave in which the guide of the hoisting rope on the traction sheave is shaped by a radius groove with wedge-shaped flanks adjoining on both sides.

In der EP0346160A1 ist eine Umlenkrolle offenbart, welche Seileingriffsrillen, die wesentlich tiefer als der Durchmesser des Seils sind und nach aussen divergierende Seiten aufweisen.In the EP0346160A1 a pulley is disclosed, which rope-engaging grooves which are substantially deeper than the diameter of the rope and have outwardly diverging sides.

Die EP1777189A1 zeigt ein Tragmittel mit Rippen und eine Tragmittelscheibe mit auf die Rippen passendend Rillen.The EP1777189A1 shows a suspension element with ribs and a suspension element disk with grooves that fit onto the ribs.

Es hat sich jedoch gezeigt, dass Massnahmen wie ballige Umlenkrollen und Treibscheiben, hochgezogene Seitenränder oder Längsrillen im Tragmittel eine seitliche Entgleisung des Tragmittels nicht in jedem Fall verhindern können. Insbesondere bei Tragmitteln mit Längsrippen wurde beobachtet, dass das Tragmittel durch Schrägzug um eine oder mehrere Längsrippen seitlich versetzt wurde, sodass das Tragmittel seitlich über die Umlenkrolle hinausragt, ohne vollständig seitlich zu entgleisen. Somit besteht die Gefahr, dass ein Tragmittel seitlich von einer Umlenkrolle bzw. einer Treibscheibe zumindest teilweise entgleist, ohne dass dies an den Sicherheitssystemen der Aufzugsanlage erkannt wird.It has been shown, however, that measures such as spherical deflection pulleys and traction sheaves, raised side edges or longitudinal grooves in the suspension element cannot always prevent the suspension element from derailing sideways. Particularly in the case of suspension elements with longitudinal ribs, it was observed that the suspension element was laterally offset by one or more longitudinal ribs by pulling at an angle so that the suspension element protrudes laterally beyond the deflection roller without derailing completely laterally. There is thus the risk that a suspension element will at least partially derail at the side of a deflecting roller or a traction sheave without this being recognized by the safety systems of the elevator installation.

Es ist daher eine Aufgabe der vorliegenden Erfindung, eine Aufzugsanlage zur Verfügung zu stellen, in welcher eine zumindest teilweise seitliche Entgleisung von Rollen zuverlässig verhindert wird. Eine solche Einrichtung soll zudem kostengünstig in der Herstellung und robust im Gebrauch sein.It is therefore an object of the present invention to provide an elevator system in which an at least partially lateral derailment of rollers is reliably prevented. Such a device should also be inexpensive to manufacture and robust in use.

Diese Aufgabe wird gelöst durch eine Aufzugsanlage gemäß Anspruch 1.This object is achieved by an elevator installation according to claim 1.

Eine derart ausgestaltete Rolle bietet zunächst den Vorteil, dass ein seitliches Entgleisen des riemenartigen Tragmittels stark erschwert oder gänzlich verhindert werden kann. Um einen möglichst wirtschaftlichen und sicheren Betrieb der Aufzugsanlage sicherzustellen, ist es zudem von Bedeutung, dass das riemenartige Tragmittel bei einer seitlichen Verschiebung weg von der Rollenkontaktfläche nicht beschädigt wird. Durch das Vorsehen eines Rückhalteelementes nahe an der äußersten Längsvertiefung kann sichergestellt werden, dass ein entgleisendes Tragmittel von dem Rückhalteelement zurückgeführt wird, bevor es seitlich versetzen kann. Es wurde nämlich beobachtet, dass solche riemenartigen Tragmittel mit Längsvertiefungen die Tendenz aufweisen, bei Schrägzug in den Längsvertiefungen der Rollenkontaktfläche aufzusteigen und eventuell überzuspringen in die nächste Längsvertiefung der Rollenkontaktfläche.A role configured in this way offers the advantage that a lateral derailment of the belt-like suspension element can be made very difficult or even prevented entirely. In order to ensure the most economical and safe operation of the elevator system, it is also important that the belt-like suspension element is not damaged when it is moved laterally away from the roller contact surface. By providing a retaining element close to the outermost longitudinal depression, it can be ensured that a derailing suspension element is removed from the retaining element before it can move laterally. It has been observed that such belt-like suspension elements with longitudinal depressions have the tendency to rise up in the longitudinal depressions of the roller contact surface when pulled at an angle and possibly jump over into the next longitudinal depression of the roller contact surface.

Indem nun der Abstand zwischen der äußersten Längsvertiefung und dem Rückhalteelement kleiner gehalten ist als eine halbe Längsvertiefungsbreite, wird das entgleisende riemenartige Tragmittel von dem Rückhalteelement in die korrekte Position zurückgeführt, bevor das riemenartige Tragmittel gänzlich aus den Längsvertiefungen der Rollenkontaktfläche hochsteigen kann.Since the distance between the outermost longitudinal recess and the retaining element is kept smaller than half a longitudinal recess width, the derailing belt-like suspension element is returned to the correct position by the retaining element before the belt-like suspension element can completely rise from the longitudinal depressions of the roller contact surface.

Gemäß der Erfindung weist die Leitfläche des Rückhalteelements einen Hinterschnitt auf, so dass sich die Leitfläche über das riemenartige Tragmittel neigt. Dies hat den Vorteil, dass dadurch das riemenartige Tragmittel bei einer seitlichen Verschiebung das Rückhalteelement lediglich tangential berührt, wodurch das riemenartige Tragmittel schonender in seine vorgesehene Position auf der Rolle zurückgeführt wird. Zudem bewirkt die Neigung der Leitfläche, dass das riemenartige Tragmittel nach unten in die Längsvertiefung der Rollenkontaktfläche geführt wird, was eine Rückführung in die vorgesehene Position des riemenartigen Tragmittels erleichtert.According to the invention, the guide surface of the retaining element has an undercut, so that the guide surface inclines over the belt-like suspension element. This has the advantage that the belt-like suspension element only touches the retaining element tangentially during a lateral displacement, as a result of which the belt-like suspension element is returned more gently into its intended position on the roller. In addition, the inclination of the guide surface has the effect that the belt-like suspension element is guided downwards into the longitudinal depression of the roller contact surface, which facilitates a return to the intended position of the belt-like suspension element.

In einer beispielhaften Ausführungsform beträgt der Abstand zwischen der äußersten Längsvertiefung und dem Rückhalteelement weniger als 80% oder weniger als 60% oder weniger als 40% oder weniger als 20% der halben Längsvertiefungsbreite der Rollenkontaktfläche. Einerseits soll dieser Abstand möglichst gering gehalten werden, so dass das riemenartige Tragmittel möglichst wenig in den Längsvertiefungen der Rollenkontaktfläche aufsteigen kann, bevor es von dem Rückhalteelement zurück in die Längsvertiefungen geführt wird. Andererseits soll dieser Abstand jedoch nicht zu gering ausgebildet sein, damit das riemenartige Tragmittel in einem normalen Betrieb nicht an dem Rückhalteelement Schaden nimmt. Somit kann hier je nach Ausgestaltung des riemenartigen Tragmittels ein idealer Abstand gewählt werden. Wesentlich ist es, dass der Abstand kleiner ist als die halbe Längsvertiefungsbreite der Rollenkontaktfläche, so dass auf jeden Fall ein vollständiges Heraufsteigen des riemenartigen Tragmittels aus den Längsvertiefungen verhindert werden kann.In an exemplary embodiment, the distance between the outermost longitudinal recess and the retaining element is less than 80% or less than 60% or less than 40% or less than 20% of half the longitudinal recess width of the roller contact surface. On the one hand, this distance should be kept as small as possible, so that the belt-like suspension element can rise as little as possible in the longitudinal depressions of the roller contact surface before it is guided back into the longitudinal depressions by the retaining element. On the other hand, however, this distance should not be too small so that the belt-like suspension element does not suffer damage to the retaining element in normal operation. An ideal distance can thus be selected here depending on the design of the belt-like suspension element. It is essential that the distance is smaller than half the length of the longitudinal recess width of the roller contact surface, so that in any case a complete rise of the belt-like suspension element out of the longitudinal recesses can be prevented.

In einer beispielhaften Ausführungsform ist eine Tragmittelhöhe im Wesentlichen gleich groß wie eine Rückhalteelementhöhe. Durch eine solche Dimensionierung des Rückhalteelementes wird gewährleistet, dass das seitlich aufsteigende riemenartige Tragmittel das Rückhalteelement nicht überragen kann.In an exemplary embodiment, a suspension element height is essentially the same as a restraint element height. Such a dimensioning of the retaining element ensures that the laterally rising belt-like suspension element cannot protrude beyond the retaining element.

In einer beispielhaften Ausführungsform ist eine Kante des Rückhalteelementes, welche in Richtung der Rollenkontaktfläche exponiert ist, abgerundet ausgebildet. Dies hat den Vorteil, dass das seitlich entgleisende riemenartige Tragmittel nicht an einer scharfen Kante Schaden nehmen kann. Das riemenartige Tragmittel soll von dem Rückhalteelement möglichst schonend in seine ursprüngliche Position auf der Rolle zurückgeführt werden.In an exemplary embodiment, an edge of the retaining element, which is exposed in the direction of the roller contact surface, is rounded. This has the advantage that the laterally derailing belt-like suspension element cannot be damaged on a sharp edge. The belt-like suspension element should be returned to its original position on the roller as gently as possible by the retaining element.

In einer vorteilhaften Weiterbildung ist die Leitfläche mehr zum riemenartigen Tragmittel hin geneigt, je weiter die Leifläche von der Rotationsachse entfernt ist.In an advantageous further development, the guide surface is inclined more towards the belt-like suspension element, the further the guide surface is away from the axis of rotation.

In einer vorteilhaften Weiterbildung beträgt der Winkel der Leitfläche zwischen 0° und 15° oder zwischen 1° und 10° oder zwischen 2° und 8° oder zwischen 3° und 7°. Je nach Ausgestaltung des riemenartigen Tragmittels und des Abstandes zwischen der äussersten Längsvertiefung der Rolle und dem Rückhalteelement kann hier eine optimale Neigung der Leitfläche gewählt werden.In an advantageous development, the angle of the guide surface is between 0 ° and 15 ° or between 1 ° and 10 ° or between 2 ° and 8 ° or between 3 ° and 7 °. Depending on the design of the belt-like suspension element and the distance between the outermost longitudinal depression of the roller and the retaining element, an optimal inclination of the guide surface can be selected here.

In einer beispielhaften Ausführungsform ist je ein Rückhalteelement auf jeder Seite der Rollenkontaktfläche angeordnet. Dies hat den Vorteil, dass dadurch ein seitliches Entgleisen auf beide Seiten der Rolle wirksam verhindert werden kann.In an exemplary embodiment, a retaining element is arranged on each side of the roller contact surface. This has the advantage that it can effectively prevent lateral derailment on both sides of the roller.

In einer beispielhaften Ausführungsform ist die Rolle eine Treibrolle und die Rollenkontaktfläche ist eine Traktionsoberfläche.In an exemplary embodiment, the roller is a power roller and the roller contact surface is a traction surface.

In einer alternativen Ausführungsform ist die Rolle eine Kabinenumlenkrolle oder eine Gegengewichtsumlenkrolle.In an alternative embodiment, the roller is a car deflection roller or a counterweight deflection roller.

In einer weiteren alternativen Ausführungsform ist die Rolle eine andere Umlenkrolle in einer Aufzugsanlage.In a further alternative embodiment, the roller is another deflection roller in an elevator system.

Es können selbstverständlich mehrere der genannten Rollentypen in einer Aufzugsanlage mit den hier beschriebenen Rückhalteelementen ausgestattet sein. Je nach Konstruktion der Aufzugsanlage sind an verschiedenen Rollen einer Aufzugsanlage Schrägzüge zu erwarten. Daher kann es je nach Aufzugsanlage vorteilhaft sein, eine oder mehrere Rollen mit den hier beschriebenen Rückhalteelementen auszustatten.It goes without saying that several of the mentioned roller types can be equipped with the retaining elements described here in an elevator installation. Depending on the construction of the elevator system, diagonal pulls are to be expected on different rollers of an elevator system. Therefore, depending on the elevator system, it can be advantageous to equip one or more rollers with the retaining elements described here.

In einer beispielhaften Ausführungsform sind die Längserhebungen des riemenartigen Tragmittels als Keilrippen ausgebildet und die Längsvertiefungen der Rollenkontaktfläche sind als keilförmige Nuten ausgebildet.In an exemplary embodiment, the longitudinal elevations of the belt-like suspension element are designed as wedge ribs and the longitudinal depressions of the roller contact surface are designed as wedge-shaped grooves.

In einer alternativen Ausführungsform sind die Längserhebungen des riemenartigen Tragmittels als Erhebungen mit teilkreisförmigem Querschnitt ausgebildet und die Längsvertiefungen der Rollenkontaktfläche sind als Vertiefungen mit teilkreisförmigem Querschnitt ausgebildet.In an alternative embodiment, the longitudinal elevations of the belt-like suspension element are designed as elevations with a partially circular cross section and the longitudinal depressions of the roller contact surface are designed as depressions with a partially circular cross section.

Die hier beschriebenen Rückhalteelemente sind grundsätzlich für verschiedene Arten von riemenartigen Tragmitteln mit Längserhebungen anwendbar. Neben den erwähnten Keilrippenriemen und Verbundseilen mit einzeln ummantelten Seilen, welche über eine gemeinsame Rückenschicht miteinander verbunden sind, sind selbstverständlich eine ganze Reihe weiterer riemenartiger Tragmittel mit Längserhebungen einsetzbar.The retaining elements described here can be used in principle for various types of belt-like suspension elements with longitudinal elevations. In addition to the V-ribbed belts mentioned and composite ropes with individually sheathed ropes, which are connected to one another via a common back layer, a number of other belt-like suspension elements with longitudinal elevations can of course be used.

In einer beispielhaften Ausführungsform ist eine Anzahl der Längserhebungen des riemenartigen Tragmittels gleich wie eine Anzahl der Längsvertiefungen der Rollenkontaktfläche. Dies hat den Vorteil, dass dadurch ein seitliches Überspringen des riemenartigen Tragmittels in den Längsvertiefungen der Rollenkontaktfläche gar nicht erst zugelassen wird. Sobald nämlich in dieser Ausführungsform das riemenartige Tragmittel an einer Seite in einer Längsvertiefung der Rollenkontaktfläche aufsteigt, kommt es in Berührung mit der Leitfläche des Rückhalteelementes, bevor es seitlich versetzen kann. Somit können seitliche Versetzer des riemenartigen Tragmittels gänzlich unterbunden werden, was für einen wirtschaftlichen und sicheren Betrieb der Aufzugsanlage vorteilhaft ist.In an exemplary embodiment, a number of the longitudinal elevations of the belt-like suspension element is the same as a number of the longitudinal depressions of the roller contact surface. This has the advantage that as a result, the belt-like suspension element is not even allowed to jump over to the side in the longitudinal depressions of the roller contact surface. As soon as in this embodiment the belt-like suspension element rises on one side in a longitudinal depression of the roller contact surface, it comes into contact with the guide surface of the retaining element before it can be displaced laterally. Lateral displacements of the belt-like suspension element can thus be prevented entirely, which is advantageous for economical and safe operation of the elevator system.

In einer beispielhaften Ausführungsform sind die Rolle und das Rückhalteelement einstückig ausgebildet. Dies hat den Vorteil, dass dadurch das Rückhalteelement standfest an seiner vorgesehenen Position verbleibt.In an exemplary embodiment, the roller and the retaining element are formed in one piece. This has the advantage that the retaining element remains stable in its intended position.

Anhand von Figuren wird die Erfindung symbolisch und beispielhaft näher erläutert. Es zeigen:

Fig. 1
eine schematische Darstellung einer beispielhaften Aufzugsanlage;
Fig. 2
eine schematische Darstellung einer nichterfindungsgemäßen beispielhaften Rolle;
Fig. 3A
eine schematische Darstellung eines beispielhaften riemenartigen Tragmittels;
Fig. 3B
eine schematische Darstellung eines beispielhaften riemenartigen Tragmittels;
Fig. 4
eine schematische Darstellung eines nichterfindungsgemäßen beispielhaften riemenartigen Tragmittels auf einer beispielhaften Rolle; und
Fig. 5
eine schematische Darstellung eines beispielhaften Rückhalteelements gemäß der Erfindung.
The invention is explained in more detail symbolically and by way of example with the aid of figures. Show it:
Fig. 1
a schematic representation of an exemplary elevator system;
Fig. 2
a schematic representation of an exemplary role not according to the invention;
Figure 3A
a schematic representation of an exemplary belt-like suspension element;
Figure 3B
a schematic representation of an exemplary belt-like suspension element;
Fig. 4
a schematic representation of an exemplary belt-like suspension element not according to the invention on an exemplary roller; and
Fig. 5
a schematic representation of an exemplary retaining element according to the invention.

In Fig. 1 ist eine beispielhafte Ausführungsform einer Aufzugsanlage 1 dargestellt. Die Aufzugsanlage 1 umfasst eine Kabine 2, ein Gegengewicht 3, einen Antrieb und ein riemenartiges Tragmittel 5. Dabei ist das riemenartige Tragmittel 5 durch eine erste Tragmittelbefestigung 7 in der Aufzugsanlage 1 fixiert, über eine Gegengewichtsumlenkrolle 10 geführt, über eine Treibrolle 4 geführt, über zwei Kabinenumlenkrollen 8 geführt und durch eine zweite Tragmittelbefestigung 7 wiederum in der Aufzugsanlage 1 befestigt.In Fig. 1 an exemplary embodiment of an elevator installation 1 is shown. The elevator system 1 comprises a car 2, a counterweight 3, a drive and a belt-like suspension element 5. The belt-like suspension element 5 is fixed in the elevator system 1 by a first suspension element attachment 7, guided over a counterweight pulley 10, guided over a drive roller 4, over two car pulleys 8 and secured in turn in the elevator system 1 by a second suspension element fastening 7.

In diesem Ausführungsbeispiel ist die Aufzugsanlage 1 in einem Schacht 6 angeordnet. In einer alternativen nicht dargestellten Ausführungsform ist die Aufzugsanlage nicht in einem Schacht angeordnet, sondern beispielsweise an einer Außenwand eines Gebäudes.In this exemplary embodiment, the elevator installation 1 is arranged in a shaft 6. In an alternative embodiment, not shown, the elevator system is not arranged in a shaft, but rather, for example, on an outer wall of a building.

Die beispielhafte Aufzugsanlage 1 in Fig. 1 umfasst ein Gegengewicht 3. In einer nicht dargestellten alternativen Ausführungsform umfasst die Aufzugsanlage kein Gegengewicht. Es sind zudem zahlreiche andere Ausführungsformen einer Aufzugsanlage möglich.The exemplary elevator installation 1 in Fig. 1 comprises a counterweight 3. In an alternative embodiment, not shown, the elevator installation does not comprise a counterweight. Numerous other embodiments of an elevator system are also possible.

In Fig. 2 ist eine nichterfindungsgemäße beispielhafte Ausführungsform einer Rolle 4, 8, 10 dargestellt. Diese Rolle 4, 8, 10 kann als Treibrolle oder als Kabinenumlenkrolle oder als Gegengewichtsumlenkrolle oder als andere Umlenkrolle in der Aufzugsanlage eingesetzt werden. In der nichterfindungsgemäßen gezeigten Ausführungsform hat die Rolle 4, 8, 10 zwei Rückhalteelemente 17. Dabei sind die Rückhalteelemente 17 spiegelbildlich zueinander angeordnet. Jedes Rückhalteelement 17 ist jeweils auf einer Seite der Rollenkontaktfläche 15 angeordnet. In diesem nichterfindungsgemäßen Ausführungsbeispiel umfasst die Rollenkontaktfläche 15 mehrere Längsvertiefungen 13. Die Rolle 4, 8, 10 weist dabei mindestens so viele Längsvertiefungen 13 auf, wie das verwendete riemenartige Tragmittel Längserhebungen aufweist. Die Rolle 4, 8, 10 ist um eine Rotationsachse 20 drehbar gelagert angeordnet.In Fig. 2 an exemplary embodiment of a roller 4, 8, 10 not according to the invention is shown. This roller 4, 8, 10 can be used as a driving roller or as a car deflection roller or as a counterweight deflection roller or as another deflection roller in the elevator system. In the embodiment not shown in accordance with the invention, the roller 4, 8, 10 has two retaining elements 17. The retaining elements 17 are arranged in mirror image to one another. Each retaining element 17 is arranged on one side of the roller contact surface 15. In this exemplary embodiment not according to the invention, the roller contact surface 15 comprises several longitudinal depressions 13. The roller 4, 8, 10 has at least as many longitudinal depressions 13 as the belt-type one used Has support means longitudinal elevations. The roller 4, 8, 10 is arranged so as to be rotatable about an axis of rotation 20.

Die Rollenkontaktfläche 15 der Rolle 4, 8, 10 aus dem nichterfindungsgemäßen Ausführungsbeispiel in Fig. 2 ist so ausgestaltet, dass sie mit einem riemenartigen Tragmittel 5 gemäß Fig. 3B zusammenwirken kann. Das riemenartige Tragmittel 5 in dem Ausführungsbeispiel gem. Fig. 3B umfasst mehrere Längserhebungen 33 in der Form von Keilrippen. Diese Keilrippen sind dabei so dimensioniert, dass sie komplementär in die Längsvertiefungen 13 der Kontaktfläche 15 der Rolle gemäß Fig. 2 eingreifen können. Das riemenartige Tragmittel 5 in Fig. 3B umfasst mehrere Zugträger 32 und einen um die Zugträger herum angeordneten Mantel 31. Dabei sind die Zugträger 32 in einer gemeinsamen Ebene angeordnet. Die Längserhebungen 33 erheben sich dabei über dieser gemeinsamen Ebene der Zugträger 32.The roller contact surface 15 of the roller 4, 8, 10 from the exemplary embodiment not according to the invention in FIG Fig. 2 is designed so that it is provided with a belt-like suspension element 5 according to FIG Figure 3B can work together. The belt-like suspension element 5 in the embodiment according to FIG. Figure 3B comprises several longitudinal elevations 33 in the form of V-ribs. These wedge ribs are dimensioned so that they complementarily into the longitudinal recesses 13 of the contact surface 15 of the roller according to Fig. 2 can intervene. The belt-like suspension element 5 in Figure 3B comprises several tension members 32 and a jacket 31 arranged around the tension members. The tension members 32 are arranged in a common plane. The longitudinal elevations 33 rise above this common plane of the tension members 32.

In Fig. 3A ist ein alternatives riemenartiges Tragmittel 5 beispielhaft dargestellt. Im Unterschied zum riemenartigen Tragmittel gemäß Fig. 3B sind die Längserhebungen 33 in diesem Ausführungsbeispiel als Erhebungen mit einem teilkreisförmigen Querschnitt ausgebildet. Dabei sind jeweils die Zugträger 32 in diesen Längserhebungen 33 zumindest teilweise angeordnet. Der Mantel 31 umschließt alle Zugträger 32 und verbindet so die Zugträger 32 zu einem gemeinsamen riemenartigen Tragmittel 5. Eine Rolle zum Zusammenwirken mit dem riemenartigen Tragmittel 5 gemäß Ausführungsbeispiel in der Fig. 3A ist nicht dargestellt. Eine solche Rolle hätte anstelle der keilförmigen Längsvertiefungen 13, wie sie in Fig. 2 dargestellt sind, Längsvertiefungen mit einem teilkreisförmigen Querschnitt.In Figure 3A an alternative belt-like suspension element 5 is shown as an example. In contrast to the belt-like suspension element according to Figure 3B the longitudinal elevations 33 in this embodiment are formed as elevations with a part-circular cross-section. The tension members 32 are in each case arranged at least partially in these longitudinal elevations 33. The jacket 31 surrounds all tension members 32 and thus connects the tension members 32 to form a common belt-like suspension element 5. A roller for interacting with the belt-like suspension element 5 according to the exemplary embodiment in FIG Figure 3A is not shown. Such a role would have instead of the wedge-shaped longitudinal depressions 13, as shown in Fig. 2 are shown, longitudinal depressions with a part-circular cross-section.

Neben den in den Fig. 3A und 3B beispielhaft dargestellten riemenartigen Tragmitteln 5 sind eine ganze Reihe weiterer riemenartiger Tragmittel mit Längserhebungen möglich. Selbstverständlich ist auch eine andere Ausgestaltung bezüglich der Anzahl der Zugträger sowie eine Ausgestaltung der Mantelform möglich. Zudem können die Zugträger auf verschiedene Arten im Mantel angeordnet werden. Beispielsweise können mehrere Zugträger pro Längserhebung angeordnet sein, oder es kann genau ein Zugträger pro Längserhebung vorgesehen sein. Zudem kann die Anordnung der Längserhebungen von der Anordnung der Zugträger unabhängig gewählt werden.In addition to the Figures 3A and 3B Belt-like suspension means 5 shown by way of example, a whole series of further belt-like suspension means with longitudinal elevations are possible. Of course, a different configuration with regard to the number of tension members and a configuration of the shell shape is also possible. In addition, the tension members can be arranged in the jacket in various ways. For example, can several tension members can be arranged per longitudinal elevation, or precisely one tension member per longitudinal elevation can be provided. In addition, the arrangement of the longitudinal elevations can be selected independently of the arrangement of the tension members.

In Fig. 4 ist ein Ausschnitt einer nichterfindungsgemäßen beispielhaften Rolle 4, 8, 10 sowie ein Ausschnitt eines damit zusammenwirkenden riemenartigen Tragmittels 5 dargestellt. Das riemenartige Tragmittel 5 ist dabei teilweise aus den Längsvertiefungen 13 heraufgestiegen und wird von dem Rückhalteelement 17 an einer weiteren seitlichen Aufwärtsbewegung gehindert. Durch diese Bewegungsbegrenzung, welche durch das Rückhalteelement 17 gewährleistet ist, wird das riemenartige Tragmittel 5 an einer weiteren seitlichen Verschiebung gehindert und wieder zurückgeführt in eine vorgesehene Position auf der Rolle 4, 8, 10.In Fig. 4 a section of an exemplary roller 4, 8, 10 not according to the invention and a section of a belt-like suspension element 5 cooperating therewith is shown. The belt-like suspension element 5 has partially climbed out of the longitudinal depressions 13 and is prevented from further lateral upward movement by the retaining element 17. As a result of this movement limitation, which is ensured by the retaining element 17, the belt-like support means 5 is prevented from further lateral displacement and is returned to an intended position on the roller 4, 8, 10.

Ein Abstand 19 zwischen einer äußersten Längsvertiefung 13 und dem Rückhalteelement 17 ist dabei kleiner ausgestaltet als eine halbe Längsvertiefungsbreite 18 der Rollenkontaktfläche 15. Dadurch wird sichergestellt, dass das riemenartige Tragmittel 5 nicht vollständig aus den Längsvertiefungen 13 heraussteigen kann. Je nach Ausführungsform des riemenartigen Tragmittels 5 kann der Abstand 19 kleiner oder größer gewählt werden. Der Abstand 19 sollte jedoch zumindest so groß gewählt werden, dass eine Leitfläche 12 des Rückhalteelementes 17 das riemenartige Tragmittel 5 in einem normalen Betriebszustand der Aufzugsanlage nicht in seiner Bewegung über die Rolle 4, 8, 10 behindert.A distance 19 between an outermost longitudinal recess 13 and the retaining element 17 is designed to be smaller than half a longitudinal recess width 18 of the roller contact surface 15. Depending on the embodiment of the belt-like suspension element 5, the distance 19 can be selected to be smaller or larger. The distance 19 should, however, be chosen to be at least large enough that a guide surface 12 of the retaining element 17 does not hinder the belt-like suspension element 5 in its movement over the roller 4, 8, 10 in a normal operating state of the elevator system.

Das Rückhalteelement 17 ist in diesem nichterfindungsgemäßen Ausführungsbeispiel im Wesentlichen so dimensioniert, dass das riemenartige Tragmittel 5 bei einer seitlich aufwärts gehenden Bewegung das Rückhalteelement 17 nicht überragen kann. Somit ist eine Rückhalteelementhöhe 14 in etwa gleich groß wie eine Tragmittelhöhe 16. Die Rückhalteelementhöhe 14 kann in Abhängigkeit des Abstandes 19 und der Ausbildung des riemenartigen Tragmittels 5 so gewählt werden, dass das riemenartige Tragmittel 5 zu keiner Zeit das Rückhalteelement 17 übersteigen kann. In diesem nichterfindungsgemäßenIn this exemplary embodiment not according to the invention, the retaining element 17 is essentially dimensioned in such a way that the belt-like suspension element 5 cannot protrude beyond the retaining element 17 in the event of a laterally upward movement. Thus, a retaining element height 14 is approximately the same as a suspension element height 16. The retaining element height 14 can be selected depending on the distance 19 and the design of the belt-like suspension element 5 so that the belt-like suspension element 5 cannot exceed the retaining element 17 at any time. In this not in accordance with the invention

Ausführungsbeispiel ist zudem eine Kante des Rückhalteelementes 17 abgerundet, so dass das riemenartige Tragmittel bei einer allfälligen Berührung mit dieser Kante keinen Schaden nimmt.In the exemplary embodiment, one edge of the retaining element 17 is also rounded, so that the belt-like suspension element is not damaged if it comes into contact with this edge.

In Fig. 5 ist ein Ausschnitt einer erfindungsgemäßen beispielhaften Ausführungsform der Rolle 4, 8, 10 dargestellt. Dabei ist die Leitfläche 12 des Rückhalteelementes 17 geneigt ausgeführt. Die Leitfläche 12 ist damit mit einem Winkel 11 von einer Senkrechten zur Rotationsachse der Rolle 4, 8, 10 geneigt. In diesem erfindungsgemäßen Ausführungsbeispiel beträgt der Winkel 11 in etwa 5°. Durch diese Neigung der Leitfläche 12 wird erreicht, dass das seitlich sich bewegende riemenartige Tragmittel lediglich tangential mit der Leitfläche 12 in Berührung kommt, so dass eine möglichst geringe Verschleißung des riemenartigen Tragmittels erfolgt. Zudem bewirkt die Neigung der Leitfläche 12, dass das riemenartige Tragmittel zurück nach unten in die Längsvertiefungen 13 geführt wird. Auch in diesem erfindungsgemäßen Ausführungsbeispiel ist eine Kante des Rückhalteelementes 17 abgerundet, um einer möglichen Beschädigung des riemenartigen Tragmittels vorzubeugen.In Fig. 5 a section of an exemplary embodiment of the roll 4, 8, 10 according to the invention is shown. The guide surface 12 of the retaining element 17 is inclined. The guide surface 12 is thus inclined at an angle 11 from a perpendicular to the axis of rotation of the roller 4, 8, 10. In this exemplary embodiment according to the invention, the angle 11 is approximately 5 °. This inclination of the guide surface 12 ensures that the belt-like suspension element moving laterally only comes into contact tangentially with the guide surface 12, so that the belt-like suspension element is subject to as little wear as possible. In addition, the inclination of the guide surface 12 has the effect that the belt-like suspension element is guided back down into the longitudinal depressions 13. In this exemplary embodiment according to the invention, too, one edge of the retaining element 17 is rounded in order to prevent possible damage to the belt-like suspension element.

Claims (13)

  1. An elevator system (1), in which a belt-type carrier means (5) is guided over a roller (4, 8, 10), longitudinal elevations (33) of the belt-type carrier means (5) engaging into longitudinal recesses (13) of a roller contact surface (15), and the rollers (4, 8, 10) having at least one retaining element (17) which is arranged laterally with respect to the roller contact surface (15), and a distance (19) between an outermost longitudinal recess (13) and the retaining element (17) being less than half a longitudinal recess width (18) of the roller contact surface (15), characterized in that the retaining element (17) has a guide surface (12) which is inclined at an angle (11) relative to a line perpendicular to the axis of rotation (20) of the roller (4, 8, 10), as a result of which the guide surface has an undercut so that the guide surface (12) is inclined over the belt-type carrier means.
  2. The elevator system according to claim 1, wherein the distance (19) between the outermost longitudinal recess (13) and the retaining element (17) is less than 80% or less than 60% or less than 40% or less than 20% of half the longitudinal recess width (18) of the roller contact surface (15).
  3. The elevator system according to any of the preceding claims, wherein a carrier means height (16) is substantially as large as a retaining element height (14).
  4. The elevator system according to any of the preceding claims, wherein an edge of the retaining element (17) that is exposed in the direction of the roller contact surface (15) has a round design.
  5. The elevator system according to any of the preceding claims, wherein the guide surface (12) is inclined more toward the belt-type carrier means (5) as the guide surface (12) gets further away from the axis of rotation (20).
  6. The elevator system according to claim 5, wherein the angle (11) is between 0° and 15° or between 1° and 10° or between 2° and 8° or between 3° and 7°.
  7. The elevator system according to any of the preceding claims, wherein one retaining (17) element is arranged on each side of the roller contact surface (15).
  8. The elevator system according to any of the preceding claims, wherein the roller (4, 8, 10) is a drive roller (4) and wherein the roller contact surface (15) is a traction surface.
  9. The elevator system according to any of claims 1 to 7, wherein the roller (4, 8, 10) is a cab deflection roller (8) or a counterweight deflection roller (10).
  10. The elevator system according to any of the preceding claims, wherein the longitudinal elevations (33) of the belt-type carrier means (5) are designed as V-ribs and wherein the longitudinal recesses (13) of the roller contact surface (15) are designed as V-grooves.
  11. The elevator system according to any of claims 1 to 9, wherein the longitudinal elevations (33) of the belt-type carrier means (5) are designed as elevations having a semi-circular cross-section and wherein the longitudinal recesses (13) of the roller contact surface (15) are designed as recesses having a semi-circular cross-section.
  12. The elevator system according to any of the preceding claims, wherein a number of the longitudinal elevations (33) of the belt-type carrier means (5) is the same as a number of the longitudinal recesses (13) of the roller contact surface (15).
  13. The elevator system according to any of the preceding claims, wherein the rollers (4, 8, 10) and the retaining element (17) are designed as a single piece.
EP16753389.2A 2015-08-21 2016-08-18 Belt pulley for an elevator system Active EP3337749B1 (en)

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PCT/EP2016/069561 WO2017032675A1 (en) 2015-08-21 2016-08-18 Belt roller for an elevator system

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US11091353B2 (en) 2021-08-17
CN107922165A (en) 2018-04-17
BR112018001019A2 (en) 2018-09-18
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AU2016312906A1 (en) 2018-03-01
AU2016312906B2 (en) 2019-08-15
US20180244499A1 (en) 2018-08-30
BR112018001019B1 (en) 2022-05-17
EP3337749A1 (en) 2018-06-27
ES2843678T3 (en) 2021-07-20
CN107922165B (en) 2020-06-05
CA2992165A1 (en) 2017-03-02

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