EP2872431B1 - Adjustable roller guidance shoe - Google Patents

Description

The invention relates to a roller guide shoe for guiding an elevator car or a counterweight in an elevator installation and an elevator installation with such a roller guide shoe.

The elevator system is installed in a building. It consists essentially of a cabin, which is connected via suspension means with a counterweight or with a second car. By means of a drive which acts selectively on the support means or directly on the car or the counterweight, the car is moved along, substantially vertical, guide rails. The elevator system is used to transport people and goods within the building over single or multiple floors.

The elevator installation includes devices for guiding the elevator car and / or the counterweight along the guide rails. These roller guides are often used.

Out FR1591623 Such a roller guide shoe is known. This roller guide shoe includes a roller carrier with two lateral rollers which can be adjusted by longitudinal slots, which are arranged obliquely in the roller carrier on different thickness guide rails, or at different center distances. A third middle roller is attached to the roller carrier via a spring-loaded lever. This roller guide shoe requires a lot of space in the height, since the oblique longitudinal slots require a lot of space. In addition, vibrations of the lateral rollers, such as those resulting from the use of ball bearings are introduced directly into the structure of the elevator car.

US5107963 discloses another roller guide shoe. In this arrangement, air springs and elastomeric springs are used to achieve a good ride comfort. Also this guide shoe needs a lot of space.

Also JP 2000 159458 discloses another roller guide shoe.

The invention aims to provide a simple adjustable roller guide shoe, which takes up little space and which has good running properties. In particular, it should be easy to adapt to different strength guide rails, or to different center distances.

The solutions described below fill at least some of these requirements.

Proposed is a roller guide shoe, which is particularly suitable for guiding an elevator car or a counterweight of a lift installation. The roller guide shoe includes a roller carrier which can be fastened to the car or the counterweight and has at least one guide roller. The roller carrier is for example an aluminum casting or it is bent from steel sheet, welded or machined. The roller carrier further includes a roller axle which receives the guide roller. The roller guide shoe further has at least one adapter installed in the roller carrier for positioning the roller axle in the roller carrier. This adapter has an installation contour and the roller carrier is provided with a corresponding receiving contour for receiving the adapter. The adapter has a through opening for receiving the roller axle. This opening determines a center axis, which is determined by the center-center of the opening.

The installation contour of the adapter is symmetrical at least in relation to a first plane of symmetry of the adapter, and this first plane of symmetry runs parallel to the center axis. Thus, the opening for receiving the roller axis is laterally offset from the first plane of symmetry, or the center axis of the opening is arranged at a distance from the first plane of symmetry of the adapter. This ensures that the adapter can be fixed in at least two different mounting positions in relation to the roller carrier in the roller carrier by the adapter with respect to the first plane of symmetry, which determines a symmetrical receiving and receiving contour can be mounted in at least two positions. Thus, the roller axis can be positioned differently depending on the installation position of the adapter in the roller carrier. This is advantageous because different thicknesses of a guide web, which are used to guide the elevator car or a counterweight, can be adjusted by this different positioning of the roller axle. It can thus the same roller guide shoe material for different thickness guide webs be used.

On the other hand, this is advantageous since, for example, different roller diameters of guide rollers can be used for a specific guide bar. For example, when using the roller guide shoe on a counterweight a small guide roller can be used, in which case the adapter is positioned so that the opening of the adapter is moved closer to the guide bar. When using the roller guide shoe on an elevator car, a comparatively larger guide roller can be used, in which case the adapter is positioned so that the opening of the adapter is positioned comparatively farther away from the guide web. This is advantageous because the counterweight is usually built slim and may take up little space. Therefore, it is of interest to use counterweight small leadership roles.

Another advantage is that in a roller guide shoe guide rollers with different diameters can be used without the need for different roller carriers must be used. It can thus be achieved that any damage points on a plurality of guide rollers during operation in the elevator installation do not come into contact with the guide rail at the same time intervals or frequencies. This is advantageous because the damage points, due to the different roll diameter, result in different interference frequencies during operation.

Such a roller guide shoe can be easily adapted to a required elevator design. Thus, such a roller guide shoe may be provided by determining a required distance of the roller axis to a center of the roller guide shoe based on order information or adjustment tables, and positioning the adapter using the various possible adjustment positions corresponding to that particular distance in the roller carrier. The order information includes, for example, a desired rail head thickness and a desired diameter of the guide rollers and the setting tables based thereon, the required distance of the roller axis to the center of the roller guide shoe or a corresponding setting position of the adapter.

In one embodiment of the roller guide shoe, the installation contour of the adapter is further symmetrical with respect to a second plane of symmetry of the adapter and a line of intersection of the two planes of symmetry determines a center axis of the adapter. Preferably, this center axis is arranged parallel and spaced from the center axis. Furthermore, the installation contour is preferably not rotationally symmetrical, in particular not circular. It has at least one flattening or highlighting. The corresponding Gegenfonn the receiving contour of the roller carrier prevents thereby in cooperation with the installation contour twisting of the adapter in the roller carrier.

This is advantageous since, for the different positioning of the opening of the adapter in the roller carrier, the adapter can simply be turned around the center axis into the receiving contour of the roller carrier. In addition, this position is inevitably protected against twisting after insertion. Advantageously, the adapter is provided with an outer shoulder, whereby the adapter can be easily inserted into the receiving contour of the roller carrier and the shoulder determines an axial position of the adapter in the roller carrier.

In one embodiment of the roller guide shoe, the installation contour of the adapter, as well as the receiving contour of the roller carrier is shaped in the form of a substantially equilateral polygon, so that the adapter at least two rotational positions in the roller carrier about the center axis of the adapter is fixed and the center axis of the opening for receiving the roller axis is arranged offset parallel to the center axis. Preferably, corners of the polygon are rounded. This is advantageous since, by means of a number of corners, a plurality of setting positions can be determined.

In an alternative embodiment of the roller guide shoe, the installation contour of the adapter, as well as the receiving contour of the roller carrier is shaped like a rhombus, so that the adapter is fixable in at least two rotational positions in the roller carrier about the center axis of the adapter and the center axis of the opening for receiving the roller axis is arranged offset parallel to the center axis.

In one embodiment of the roller guide shoe corners of the rhombus, or the polygon are rounded, at best, the curves of opposite corners of a polygon with a straight corner number, or the rhombus, with the same radii and the curves of adjacent corners are provided according to different radii. This is advantageous because a shape of the adapter, especially when using vibration damped adapters can be optimized.

In one embodiment of the roller guide shoe, the adapter is made of a vibration-damping material, whereby the roller axle is mounted vibration-damped in the roller carrier. This is advantageous because with this measure a vibration, vibration, or noise transmission from the roller guide shoe to the elevator car can be damped, or reduced, whereby the running property of the roller guide shoe is improved.

In one embodiment of the roller guide shoe, the adapter is made of polyurethane, whereby the roller axle is mounted vibration-damped in the roller carrier. If necessary, an elasticity of the adapter is influenced by air pockets or by air openings. This allows a cost effective and beneficial implementation of the adapter.

In one embodiment of the roller guide shoe, the roller axle receiving aperture is a circular aperture, and the roller axle has a first circular axle portion adapted to be positioned in the circular aperture of the adapter. Preferably, the roller axle further has a bearing area adjacent to the first round axle area for receiving the guide roller. This storage area is preferably eccentrically offset from the first axis area. This is advantageous since a distance of the guide roller axis to a guide bar can now be adjusted continuously by turning the roller axle in the opening. Thus, on the one hand, a pressing force of the guide roller can be adjusted on a guide web. But it can also be achieved in cooperation with the positioning of the opening in the adapter, an extension of the adjustment range with respect to different thicknesses of the guide bar. In a preferred embodiment, for example, the different positioning of the adapter, or the roller axle in the roller carrier allows use of different guide roller diameter, and the eccentric arrangement of the storage area of the roller axle to the axle allows adjustment of Rollenfiihrungsschuhs to different thicknesses of the guide bar. Thus, a variety of design variants can be realized using identical base material. This allows storage costs and production costs to be kept low.

In one embodiment of the roller guide shoe, the roller carrier is formed substantially symmetrical and it is designed to accommodate two lateral roller axes with guide rollers. This can be arranged depending on a guide roller on the two lateral surfaces, or on two sides of the guide web.

The two lateral roller axes and guide rollers are preferably each attached via two spaced-apart adapter to the roller carrier. As a result, executives can be introduced into the roll carrier via a pair of forces determined by the detached adapters. In principle, the two lateral guide rollers or all the guide rollers can be connected by their own roller carrier to the elevator car or counterweight. However, the combination of roles in a roll carrier is particularly beneficial because it allows the leadership of a leadership area without further adjustments and at low cost can be realized. The embodiment described with the symmetrical recording of the guide rollers and the introduction of the guide roller force via two mutually distanced adapter is particularly cost, since the individual storage zones of the roller axle are spared in the roller carrier of bending load.

In one embodiment of the roller guide shoe, the two lateral roller axles are further connected by means of a connecting bracket and secured against unintentional rotation, the connecting bracket having different hole positions corresponding to the different positions of the roller axles in the roller carrier. As a result, correspondingly different connection distances are made possible, whereby an adjustment of the selected setting can be effectively prevented.

In one embodiment of the roller guide shoe, the roller carrier allows a receptacle of another guide roller, which is in a position perpendicular to the guide roller arranged on the roller axis. Preferably, this further guide roller is supported via a sprung lever and / or a stop damper to the roller carrier. As a result, this further guide roller can be pressed against a middle guide surface of the guide web. This is advantageous because this acting in a width direction of the cabin further leadership role must be tuned usually to greater inaccuracies. The use of the spring-loaded lever and / or a corresponding stop damper makes this possible.

Of course, variations of the roller guide shoe are possible. For example, instead of a second lateral guide roller, a second lateral guide surface in the form of a sliding surface may be used if, for example, there are constant lateral forces which define a defined guiding direction. Likewise, other parts, such as an emergency guide can be integrated in the roller carrier. An emergency response is used, for example, when as a result of an overload of the guide roller, eg in the case of earthquakes, improper loading or overloading of the elevator car or the like, a roller is destroyed or a deflection of a vibration-damped adapter becomes too great.

Fig. 1

zeigt eine schematische Ansicht einer Aufzugsanlage in der Seitenansicht,

Fig. 2

zeigt eine schematische Ansicht der Aufzugsanlage im Querschnitt,

Fig. 3

zeigt eine perspektivische Ansicht eines Rollenführungsschuhs

Fig. 4

zeigt eine Seitenansicht des Rollenführungsschuhs von Fig. 3

Fig. 5

zeigt eine Vorderansicht des Rollenführungsschuhs von Fig. 3 in einer ersten Einstellung

Fig. 6

zeigt eine Vorderansicht des Rollenführungsschuhs von Fig. 3 in einer zweiten Einstellung

Fig. 7

zeigt ein Beispiel eines Adapters

Fig. 8

zeigt ein Beispiel einer Rollenachse

Fig. 9

zeigt schematisch den Adapter von Fig. 7 in unterschiedlichen Einbaupositionen

Fig. 10

zeigt schematisch einen anderen Adapter in unterschiedlichen Einbaupositionen

Fig. 11

zeigt schematisch einen weiteren Adapter in unterschiedlichen Einbaupositionen

Fig. 12

zeigt schematisch einen weiteren Adapter in unterschiedlichen Einbaupositionen

Fig. 13

zeigt schematisch einen weiteren Adapter in unterschiedlichen Einbaupositionen

Embodiments of the invention will be described by way of example with reference to figures. Equivalent parts are provided in the figures with the same reference numerals.

Fig. 1

shows a schematic view of an elevator installation in side view,

Fig. 2

shows a schematic view of the elevator installation in cross section,

Fig. 3

shows a perspective view of a roller guide shoe

Fig. 4

shows a side view of the roller guide shoe of Fig. 3

Fig. 5

shows a front view of the roller guide shoe of Fig. 3 in a first shot

Fig. 6

shows a front view of the roller guide shoe of Fig. 3 in a second shot

Fig. 7

shows an example of an adapter

Fig. 8

shows an example of a roller axle

Fig. 9

schematically shows the adapter of Fig. 7 in different installation positions

Fig. 10

schematically shows another adapter in different mounting positions

Fig. 11

schematically shows another adapter in different mounting positions

Fig. 12

schematically shows another adapter in different mounting positions

Fig. 13

schematically shows another adapter in different mounting positions

FIG. 1 shows an elevator system 1 in a schematic side view and FIG. 2 shows the elevator system 1 in a schematic plan view. The elevator installation 1 is installed in a building and serves to transport persons or goods within the building. The elevator installation 1 includes an elevator car 2, which can move up and down along guide rails 6. The elevator car 2 is provided for this purpose with guide shoes 9, which leads the elevator car 2 as closely as possible a predetermined route along. The elevator car 2 is accessible from the building via shaft doors 8. A drive 4 serves to drive and hold the elevator car 2. The drive 4 is, for example, in the upper region of the building arranged and the car 2 hangs with support means 5, for example, supporting ropes or carrying strap on the drive 4. The support means 5 are further guided via the drive 4 to a counterweight 3. The counterweight 3 compensates for a mass fraction of the elevator car 2, so that the drive 5 has to compensate for the main thing only an imbalance between the car 2 and counterweight 3. The drive 4 is arranged in the example in the upper part of the building. It could, of course, also be arranged at another location in the building, or in the area of the car 2 or the counterweight 3.

The elevator car 2 is further provided with a brake system 7, which can hold and brake the elevator car 2. Like the elevator car 2, the counterweight 3 is guided along guide rails 6 by means of guide shoes 9. Since the counterweight 3 has smaller dimensions and is held substantially centrally by the support means 5, a dimension of guide rails 6 of the counterweight 3 can generally be made smaller in comparison to the guide rails 6 of the elevator car 2. Of course, the guide shoes 9 of the counterweight 3 are adapted to the size of the guide rail 6. The elevator car 2 and the counterweight 3 are usually performed with four guide shoes 9, wherein two guide shoes 9 are arranged on both sides of the elevator car 2, and the counterweight 3, at the upper and lower end portion and cooperate with a guide rail 6 , In the guide shoes 9 is a distinction between Gleitführungsschuhen and Rollenführungsschuhen. There are also known hybrid forms in which both sliding areas and roller areas are present. Roller guide shoes 9 are used in the present example.

In FIG. 3 It can be seen how such a roller guide shoe 9 comprises a guide rail 6, or a guide web 6a of the guide rail 6 on three sides. A first guide roller 11 and a second guide roller 11 (in the FIG. 3 not visible) are arranged on opposite side surfaces 6b of the guide web 6a and another, third guide roller 12 is aligned transversely or perpendicular to the previous guide rollers 11 so that they on a between the two side surfaces 6b extending central guide surface 6c or a top surface of the Guide bar 6a is running.

The guide rollers 11 are mounted in a roller carrier 10. The roller carrier 10 has a base surface 10 a, which is provided in the example with mounting holes 10 b, so that the roller guide shoe 9 can be attached to the elevator car 2 or the counterweight 3.

The third guide roller 12, see FIGS. 3 and 4 , is fixed in the roller carrier 10 by means of a spring-mounted lever 14. The spring-loaded lever 14 is pivotally mounted via a lower bearing 10c in the roller carrier 10 and the third guide roller 12 is rotatably mounted at an opposite end of the spring-loaded lever 14. The spring-loaded lever 14, in the installed state of the roller guide 9 in the elevator installation 1, is pressed against the head surface 6c of the guide web 6a by a pressure spring 15, which is supported in the roller carrier 10. In the example, in addition to the pressure spring 15, a stop buffer 16 is used, which limits a deflection of the third guide roller 12. The stop buffer 16 and the pressure spring 15 are connected via associated adjustable fastening means 32 on the one hand to the roller carrier 10 and on the other hand to the spring-loaded lever 14.

Of course, instead of the third guide roller 12, only one sliding surface can be used, or the third guide roller 12 can also be fastened without a sprung lever 14. As shown in the example, the third roller 12 is preferably made, in comparison to the other two guide rollers 11, with a larger diameter. This takes different managers into account.

In the example below FIG. 3 Furthermore, an optional mounting bracket 34 can be seen, which connects the two shoulders 10d of the roller carrier. This mounting bracket 34 can be used to, for example, a possible protective cover (not shown) to attach. It can also be used to reinforce the roller carrier 10, if this is necessary for design reasons.

The first and in the example, the second guide roller 11 are mounted by means of a roller shaft 13 in the roller carrier 10. For this purpose, the roller carrier 10 has two shoulders 10d which project from the base surface 10a of the roller carrier 10 and which receive the roller shaft 13. The shoulders 10d are, for example, bent sheet-metal sections, but it could also be a construction welded from sheet-metal parts. The roller axle 13 is fastened in the roller carrier 10 via two adapters 18 or a pair of adapters 18. The adapters 18 are arranged in the two shoulders 10 d of the roller carrier 10. A force acting on the first, or second guide roller 11 executive can be optimally introduced into the roller carrier 10 via the two shoulders 10d.

The adapter 18 is, as in FIG. 7 represented, in a first embodiment, a polyurethane-made part of an installation contour 19 has the corresponding to the representation of FIG. 9 an equilateral rectangle or a rhombus, in this example even a square.

The adapter 18 shown is made of polyurethane and in this embodiment it additionally has closed or open air inclusions 25. These are optional. With the arrangement of such air pockets 25 or air openings, an elasticity and a damping behavior can be influenced.

The mounting contour 19 has rounded corners, wherein in each case opposite corners of the mounting contour 19 are provided with the same radii and adjacent corners of the rhombus with different radii. This installation contour 19 fits into a corresponding receiving contour 29, which are incorporated in the shoulders 10d of the roller carrier 10.

The adapter 18 has an adapter shoulder 26. This adapter shoulder 26 forms a stop 27. The adapter 18 can therefore be easily inserted into the corresponding receiving contour 29 of the roller carrier 10. The adapter 18 has a through opening 20 for receiving the roller shaft 13. In the FIGS. 7 and 8 It can be seen how the roller shaft 13 can be inserted into the opening 20 of the adapter 18. This opening 20 defines a center axis 21, or passing through the center of the opening 20 axis.

The installation contour 19 of the adapter 18 is in the example of FIG. 7 and 9 with respect to a first plane of symmetry 22 of the adapter 18 is symmetrical and runs parallel to the center axis 21. The center axis 21 of the opening 20 is further spaced from the first plane of symmetry 22 of the adapter 18 is arranged. Further, in the example, the mounting contour 19 of the adapter 18 is symmetrical with respect to a second plane of symmetry 23 of the adapter 18, wherein a line of intersection of the two planes of symmetry determines a center axis 24 of the adapter 18. This center axis 24 of the adapter 18 is arranged parallel to and spaced from the center axis 21.

The adapter 18 in this embodiment can now as in the FIGS. 5, 6 and 9 can be fixed in two with respect to the roller carrier 10 different installation positions in the roller carrier 10 and the roller shaft 13 can thus be dependent on the Installation position of the adapter 18 are positioned in the roller carrier 10 in the two different positions.

In FIGS. 5 and 9a the adapter 18 is inserted into the receiving contour 29, that the center axis 21 of the adapter 18 and thus the roller axis 13 is pushed to the center 33 of the roller guide shoe 9 and in FIGS. 6 and 9b he is so inserted into the receiving contour 29, that the center axis 21 of the adapter 18 and thus the roller shaft 13 is moved from the center 33 of the roller guide shoe 9 in a more distant position. A distance zL of the center axis 21 of the adapter 18 to the center 33 of the roller guide shoe 9, or a distance dL of the roller shaft 13 to the center 33 of the roller guide shoe 9 is in the positioning of the adapter 18 according to FIG. 6 compared to FIG. 5 increased. This greater distance allows the use of a stronger rail 6, or it allows, as in the example of FIG. 6 the use of a larger diameter guide roller 11 11aL.

For better recognition, the adapter 18 is provided with a marking 28. A first installation position is designated A and a second installation position is designated B. Thus, the correct installation position can be easily detected at any time.

In an example carried out, the distance between the center axis 21 of the opening 20 and the first plane of symmetry 22 of the installation contour 19 is selected so that in one case a guide roller 11 with a diameter of 100 mm can be used. In the other mounting position, a guide roller 11 with 120mm diameter can be used. The coordination of the rollers 11 can be predefined depending on the requirements. The requirements are determined, for example, by the place of cultivation. At the counterweight 3, small reel diameters are often desired, since the counterweight 3 has small lateral dimensions, and then larger reel diameters are desired on the car 2, since there is more space available and, on the other hand, a better runnability is required.

The once selected installation position is then, as in the FIG. 3 can be seen secured with a connection bracket 30. The connecting bracket 30 connects the two-sided roller axes 13 of the two lateral guide rollers 11 with each other. The connecting bracket 30 is prepared in the example with two different hole positions 31. Even so, a selected mounting position of the adapter 18 is quickly recognizable and they can no longer after securing by the connecting bracket 30 be inadvertently adjusted.

In the present embodiment according to the FIGS. 3 to 8 has the roller axis 13, see FIG. 8 , Further, a first round shaft portion 13 a, which is designed to be positioned in the circular opening 20 of the adapter 18 and the roller shaft 13 has a bearing portion 13 b for receiving the guide roller 11. According to this exemplary embodiment, the bearing area 13b is offset eccentrically 13e from the first axis area 10a.

By rotating the roller shaft 13, a distance of the guide rollers 11 can now be additionally set. In the embodiment, the two adjustment positions of the adapter 18 for varying the roller diameter 11aL, 11aR of the side guide rollers 11 are used, and the eccentricity 13e of the roller shaft 13 is used for adjusting different thicknesses of the guide web 6a. Thus, with the embodiment according to FIGS. 3 to 8 by means of the two adjustment positions of the adapter 18, the diameter of the guide rollers with 100mm or 110mm are selected and by means of the eccentric design of the roller shaft 13, a thickness of the guide web 6a of about 7mm to 15mm can be adjusted. These ranges of variation can be determined by the choice of the eccentricity 13e of the roller axis 13 and the displacement of the center axis 21 of the opening 20 in the adapter 18 to the first plane of symmetry 22 thereof.

Furthermore, the roller guide shoe 9 with an emergency guide 17, see FIGS. 4 to 6 Mistake. The emergency guide 17 is fixed to the roller carrier 10. It absorbs forces that arise in large executives, for example, if the guide rollers 11 spring down too much due to overloading.

By varying the adapter 18 and of course the corresponding receiving contour 29 in the roller carrier 10 different adaptation variations can be achieved. FIG. 9 shows here the adapter 18 as previously explained. The installation contour 19 of the adapter 18 is symmetrical with respect to a first plane of symmetry 22 of the adapter 18 and runs parallel to the center axis 21. The center axis 21 of the opening 20 is correspondingly arranged at a distance from the first plane of symmetry 22 of the adapter 18. Further, in this example, the mounting contour 19 of the adapter 18 is symmetrical with respect to a second plane of symmetry 23 of the adapter 18, wherein a section line of the two planes of symmetry 22, 23 determines a center axis 24 of the adapter 18. This center axis 24 of the adapter 18 is thus also arranged parallel to and spaced from the center axis 21. The mounting contour 19 has rounded corners, wherein in each case opposite corners of the mounting contour 19 are provided with the same radii and adjacent corners of the rhombus with different radii. Such a designed adapter 18 can be adjusted in two different positions. FIG. 9 _I shows a first position and FIG. 9 FIG. 11 shows a second position wherein the adapter 18 has been rotated by 180 ° about the center axis 24. As a result, the opening 20 has been set accordingly in a second position.

FIGS. 11 to 13 show other forms of adapter 18, wherein in FIG. 11 a symmetrically flattened cylinder determines the installation contour 19 of the adapter 18. Also, such a designed adapter 18 can be set in two different positions. FIG. 11 _I shows a first position and FIG. 11 _II shows a second position, wherein the adapter 18 has been rotated in this example by 180 ° about the central axis 24. As a result, the opening 20 has been set accordingly in a second position.

In FIG. 12 is an installation contour 19 designed in the shape of a polygon, which has two second planes of symmetry 23, 23.1. The center axis 24 is determined by the intersection of the three planes of symmetry, 22, 23, 23.1. Such a designed adapter 18 can be adjusted accordingly in three different positions. FIG. 12 shows a first position, FIG. 12 _II shows a second position and FIG. 12 III shows a third position, wherein the adapter 18 has been rotated in each case by 120 ° about the central axis 24 in this example. As a result, the opening 20 has been placed in a second or third position accordingly.

In FIG. 13 is an installation contour 19 designed in the shape of a square, wherein the corners are rounded, each with the same radius. The adapter 18 or the installation contour 19 has a second plane of symmetry 23. The center axis 24 is determined by the intersection of the two planes of symmetry, 22, 23. In contrast to the previous embodiments, the center axis 21 is offset asymmetrically to the center axis 21 in this example. The center axis is therefore not on any plane of symmetry. Such a designed adapter 18 can now be adjusted accordingly in four different positions. FIG. 13 _I shows a first position, FIG. 13 _II shows a second position, FIG. 13 _III shows a third position and FIG. 13 _IV shows a fourth Position, wherein the adapter 18 has been rotated in this example in each case by 90 ° about the central axis 24. As a result, the opening 20 has been set correspondingly in a second, third position or fourth position.

In FIG. 10 This installation contour 19 is symmetrical only with respect to the first plane of symmetry 22 and the center axis 21 of the opening 20 is arranged at a distance from this first plane of symmetry 22. Also, such a designed adapter 18 can be set in two different positions. FIG. 10 _I shows a first position and FIG. 10 Figure II shows a second position wherein the adapter 18 is not twisted in this example, but it is turned around the plane of symmetry. As a result, the opening 20 has been set accordingly in a second position.

The illustrated embodiments are exemplary. The person skilled in the art adapts the invention to the requirements. At best, he uses rubber or other materials instead of polyurethane. The roller shaft 13 may be a straight axis, without an eccentric bearing area. The two lateral rollers may have the same diameter, but they may also be designed in the same roller guide shoe 9, with different diameters.

Claims (13)

1. A roller guide shoe for guiding an elevator car or a counterweight of an elevator system, comprising

   - a roller support (10) that can be fastened to the car (2) or the counterweight (3),

   - at least one guide roller (11), and

   - at least one roller axle (13) that is arranged in the roller support (10) for receiving the guide roller (11),

   characterized in that the roller guide shoe (9) furthermore contains at least one adapter (18) that is installed in the roller support (10) for positioning the roller axle (13) in the roller support (10), wherein

   - the adapter (18) comprises an installation contour (19) which fits a corresponding receiving contour (29) of the roller support (10),

   - the adapter (18) comprises a continuous opening (20) for receiving the roller axle (13) and this opening (20) defines a centre axis (21),

   - the installation contour (19) of the adapter (18), at least with respect to a first symmetry plane (22) of the adapter (18), is embodied symmetrically, which first symmetry plane (22) runs parallel to the centre axis (21), and

   - the centre axis (21) of the opening (20) is arranged spaced from the first symmetry plane (22) of the adapter (18),

   so that the adapter (18) can be fixed in the roller support (10) in at least two installation positions that are distinct with respect to the roller support (10), and the roller axle (13) independently of the installation position of the adapter (18) is differently positioned in the roller support (10).
2. The roller guide shoe according to Claim 1, characterized in that the installation contour (19) of the adapter (18) is furthermore symmetrical to a second symmetry plane (23) of the adapter (18) and defines a section line of the two symmetry planes of a centre axis (24) of the adapter (18), which is arranged parallel and spaced from the centre axis (21) and wherein the receiving contour (29) of the roller support (10) in interaction with the installation contour (19) prevents a twisting of the adapter (18) in the roller support (10).
3. The roller guide shoe according to Claim 2, characterized in that the installation contour (19) of the adapter (18), as well as the receiving contour (29) of the roller support (10) is embodied in the form of a substantially equilateral polygon, so that the adapter (18) is fixable at least in two different rotation positions in the roller support (10) about the centre axis (24) of the adapter (18) and the centre axis (21) of the opening (20) for receiving the roller axle (13) is arranged parallel offset to the centre axis (24), wherein preferentially corners of the polygon are rounded.
4. The roller guide shoe according to Claim 2, characterized in that the installation contour (19) of the adapter (18) as well as the receiving contour (29) of the roller support (10) is embodied in the form of a rhombus so that the adapter (18) is fixable in the roller support (10) at least in two distinct rotational positions about the centre axis (24) of the adapter (18) and the centre axis (21) of the opening (20) for receiving the roller axle (13) is arranged parallel offset to the centre axis (24), wherein preferentially corners of the rhombus are rounded.
5. The roller guide shoe according to Claim 4, characterized in that corners of the rhombus are rounded, wherein in each case roundings of corners of the rhombus located opposite one another are embodied as same radii and roundings of corners of the rhombus lying adjacent to one another, with different radii.
6. The roller guide shoe according to any one of the Claims 1 to 5, characterized in that the adapter (18) consists of a vibration-damping material, as a result of which the roller axle (13) is mounted in the roller support (10) in a vibration-dampened manner.
7. The roller guide shoe according to Claim 6, characterized in that the adapter (18) consists of polyurethane, as a result of which the roller axle (13) is mounted in the roller support (10) in a vibration-dampened manner, wherein if required an elasticity of the adapter (18) is influenced through air inclusions (25).
8. The roller guide shoe according to Claim 6 or 7, characterized in that the adapter (18) comprises air inclusions (23) or air openings, as a result of which an elasticity of the adapter (18) is influenced.
9. The roller guide shoe according to any one of the Claims 1 to 8, characterized in that the opening (20) for receiving the roller axle (13) is a circular opening (20), and the roller axle (13) comprises a first round axle region (13a), which is embodied in order to be positioned in the circular opening (20) of the adapter (18) and the roller axle (13) comprises a bearing region (13b) for receiving the guide roller (11), wherein the bearing region (13b) is eccentrically (13c) offset to the first axle region (13a).
10. The roller guide shoe according to any one of the Claims 1 to 9, characterized in that the roller support (10) is substantially formed symmetrically and embodied for receiving two lateral roller axles (13) with guide rollers (11), so that a guide roller (11) each can be arranged on two sides of a guide web (6a), wherein the two lateral roller axles (13) and guide rollers (11) are fastened to the roller support (10) each via two adapters (18) that are spaced from one another, so that guiding forces are introduced into the roller support (10) via a force couple that is determined by the spaced adapters (18).
11. The roller guide shoe according to Claim 10, characterized in that the two lateral roller axles (13) are connected and secured against twisting by means of a connecting strap (30), wherein the connecting strap (30) has different hole positions (31) corresponding to the different positions of the roller axles (13) in the roller support (10).
12. The roller guide shoe according to any one of the Claims 1 to 11, characterized in that the roller support (10) makes possible a mounting of a further guide roller (12), which is in a rectangular position to the guide roller (11) that is arranged on the roller axle (13), and which preferentially is supported via a resilient lever (14) and/or a stop damper (16) to the roller support (10), as a result of which this further guide roller (12) is pressed against a middle guide surface (6c) of the guideweb (6a).
13. An elevator system with a roller guide shoe (9) according to any one of the Claims 1 to 12.

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