EP3390261B1 - Fixing devices for fixing elevator guides - Google Patents

Description

The invention relates to a fastening device which is used to fasten one side of a rail foot of an elevator rail relative to a fastening plane, and to an elevator installation with one or more elevator rails which are mounted in an elevator shaft or the like with such fastening devices. Furthermore, the invention relates to a method for fastening a rail foot of an elevator rail, which is carried out with such fastening devices. In particular, the invention relates to the field of elevator systems that are installed in tall buildings and extend over a large number of floors.

The DE-AS 1 139 254 relates to a guide rail fastening device for attaching guide rails of elevators to a supporting structure. This is based on the knowledge that it is advantageous if relative upward movements of the guide rail sections are made possible in the case of building construction. To facilitate vertical relative movements between the structure and the guide rail, fastening holes in a support plate for pushing through bolts for guide rail clips are designed as elongated holes, which with their longitudinal axes point upward away from the adjacent web wall of the guide rail profile, with guide rail clips resiliently resting against flanges of the guide rail . As the length of the guide rail increases due to thermal expansion, the forces transferred to the bolts move the slidably aligned rail fastener up to reduce the friction between the guide rail brackets and the guide rail, which facilitates the upward vertical movement of the guide rail relative to the guide rail bracket.

The one from the DE-AS 1 139 254 Known guide rail fastening device has the disadvantage that a direction-dependent change in the friction occurs. Conversely, if there is an opposite relative movement, for example due to a temperature-related contraction of the guide rail, the bolts in the elongated holes are adjusted downwards, which increases the friction between the guide rail clamps and the guide rail, and a relative vertical movement between the fastening device and the rail prevented. In addition, each movement of the bolt in the elongated hole also leads to a change in the holding force or the play of the guide rail on the fastening device, which is undesirable.

From the CH-PS 484 826 a fastening device for guide rails of elevators is known. This fastening device is based on the knowledge that when fastening guide rails for elevators it must be taken into account that the length of the guide rails changes when the temperature changes and that the shaft masonry may contract over time. Therefore a longitudinal displacement between the guide rails and the shaft masonry should be permitted. The proposed fastening device holds the guide rail firmly in the horizontal direction, but does not clamp it firmly in the vertical direction. For this purpose, a rail clamp is arranged on both sides of the guide rail. A rail clamp consists of two circular disks of different diameters lying on top of each other on a coaxial axis, which merge into one another conically. To set a game, several spacers are inserted between the support plate and the rail bracket.

With the from the CH-PS 484 826 Known fastening device, an assembly of several parts is required during assembly, the fitter having to adjust the play via the spacers.

From the US 3,982,692 Fastening means are known which are used to fasten the sides of an elevator rail with a T-profile to a support, this being done in such a way that a relative movement of the elevator rail is possible, for example to compensate for building settlements. Lateral movements are prevented here, while a limited movement of the elevator rail against the pretensioning force of a spring clip is made possible away from the carrier.

The one from the US 3,982,692 Known fastening has the disadvantage that the limited but possible adjustment movements enable the elevator rail to twist along its longitudinal axis, which results in corresponding curvatures of the guideways provided on the elevator rail, if appropriate, for example, during operation Lateral forces are transmitted from the elevator car or the counterweight to the elevator rail. This is usually undesirable.

From the EP 0 448 839 A1 a fastening device for the guide rails of elevators is known. In the known fastening device, a change in a pretensioning force of the rail clamp can be achieved in that a semicircular profile serving as a lining for the guide rail has different thicknesses. To do this, it is necessary to determine which semicircular profile is required and must be delivered before the elevator system is installed.

US 2003/0168291 discloses a fastening device according to the preamble of claim 1.

In the case of an elevator installation installed in a building, the elevator rails can be attached directly or indirectly to a building wall. The elevator rails, which serve, for example, as guide rails for the elevator car or the counterweight, can extend over the entire travel distance of the elevator, which in many cases corresponds approximately to the height of the building. The elevator rails are to be fastened so strongly in the building that they can safely accommodate lateral managers. The height of the building can change over time. The building shrinks, for example, as a result of the building drying out and settling. The temperature of the building and sunshine can also cause changes in the height of the building. The elevator rails can thus shift relative to the building, and in particular the building height can be shortened relative to the elevator rails. In order to avoid deformations of rail sections, fastening points of the elevator rails are to be designed in such a way that length compensation is possible, but at the same time there is sufficient fastening to accommodate executives.

An object of the invention is to provide a fastening device for an elevator rail, an elevator installation with a plurality of fastening devices and a method for fastening an elevator rail, which are of improved design. Specifically, it is an object of the invention to provide a fastening device for an elevator rail, an elevator installation with a plurality of such fastening devices and a method for fastening an elevator rail, which enable improved fastening, in which both a relative displacement of the elevator rail along its extension enables and a Movement or twist in a perpendicular to the plane of the extension is prevented.

In the following, solutions and suggestions for a corresponding fastening device, a corresponding elevator installation and a corresponding method are specified, which solve at least parts of one of the tasks. Furthermore, advantageous additional or alternative developments and refinements are specified.

In the solution, the fastening device, which is used to fasten one side of a rail foot of an elevator rail relative to a fastening plane, can be designed with a support area and a contact area between which the side of the rail foot can be arranged, with a compensating means being provided, which is a first element and has a second element which can be displaced relative to one another along an adjustment direction which serves to fasten the side of the rail foot of the elevator rail. The first element and the second element are designed in such a way that between the contact area and the support area, a holding dimension viewed perpendicular to the adjustment direction, in which play-free attachment of one side of a rail foot between the contact area and the support area is made possible by one in the adjustment direction displacement of the first element that takes place can be changed relative to the second element.

The contact area faces an underside of the rail foot and the support area faces an upper side of the rail foot. The support region is preferably formed on the first element. According to the invention, the support area is formed on at least one projection formed on the first element. This has the advantage that the rail foot can be positioned in the direction of the adjustment direction by means of the second element of the compensating means. For this purpose, a stop is preferably provided in the second element. By adjusting the first element of the compensating means with respect to the second element in the direction of the adjustment direction, the holding dimension can be easily adapted to the respective dimension of the rail foot or to the tolerance-related deviations of the rail foot.

The elevator rail is not part of the fastening device. In particular, the fastening device can also be manufactured and sold independently of an elevator rail or other components of an elevator installation. In the Assembly of the elevator installation, in which several elevator rails are generally installed, several such fastening devices can be used to connect the elevator rails, for example in an elevator shaft, to a supporting structure connected to a shaft wall. The mounting level is then stationary with respect to the shaft wall or the supporting structure. When installing several fastening devices, they do not necessarily have the same fastening level. Furthermore, it is conceivable that other fastening options for the elevator rails may also be used when fastening the elevator rails, if this is expedient. This enables a combination of conventional fastening options with the proposed fastening devices. The mounting level is usually aligned when it is installed in the elevator installation in such a way that the elevator rails held on the mounting level follow a vertical alignment. A pair of opposing fasteners together form a pair of fasteners. Together they hold the elevator rail in place. The pair of opposing fastening devices is usually arranged on one and the same fastening plane. The two opposing fastening devices can be of the same type, but they can also be of different types.

Advantageously, the fastening device enables adaptation to the respective elevator rail that is being assembled. In particular, an adaptation to a thickness of the rail foot and / or a surface of the rail foot of a specific elevator rail, which is fastened with the respective fastening device, is possible. In relation to a specific elevator rail, a specific holding dimension is then correspondingly obtained, the fastening device allowing adjustment to this specific holding dimension.

If the fastening device is thus used for fastening a specific side of a rail foot of a specific elevator rail relative to a fastening level, then the fastening device is advantageously designed with a support area and a contact area between which the side of the rail foot can be arranged. For this purpose, a compensating means is provided, the compensating means having a first element and a second element, which run along an adjustment direction used to fasten the side of the rail foot of the elevator rail are displaceable relative to each other. The first element and the second element are designed in such a way that between the contact area and the support area the holding dimension considered perpendicular to the adjustment direction, in which a play-free fastening of the specific side of the rail foot of the specific elevator rail is made possible between the contact area and the support area displacement of the first element relative to the second element can be adjusted in the adjustment direction.

In the solution, at least one first sliding surface is formed on the first element, which has a constant or variable inclination with respect to the adjustment direction. In addition, at least one second sliding surface is formed on the second element, which has a constant or variable inclination with respect to the adjustment direction. It is also advantageous here that the sliding surfaces formed on the elements face one another. The inclination of the second sliding surface advantageously corresponds to the inclination of the first sliding surface. The first sliding surface and the second sliding surface work together to set the holding dimension. The holding dimension can thus be set exactly according to a local dimension of the rail foot. The first and second elements can be made essentially rigid, that is, inelastic. Since the rail foot is kept free of play, it can be moved lengthways and at the same time it is prevented from tipping or shifting to the side.

It is particularly advantageous that such a sliding surface is formed on a wedge-shaped part of the corresponding element. Alternatively, it is possible for the sliding surface to be formed on a curved part of this element. If appropriate, the one element can also be designed in one way and the other element in the other way.

Another possible solution consists in an elevator installation with at least one arrangement of elevator rails arranged one behind the other along a longitudinal axis and a plurality of fastening devices, each of which is designed in a proposed manner, the fastening devices being assigned to the sides of the rail feet of the elevator rails and each of these fastening devices making an adjustment of the holding dimension required on the assigned side of the rail foot of the assigned elevator rail. The elevator rails arranged one behind the other in their longitudinal direction, which can also be referred to as elevator rail sections, then in the assembled state form an arrangement on the braking and / or guideways which extends essentially over the entire height of the elevator shaft. In its entirety, such an arrangement can also be referred to as an elevator car guide rail or counterweight guide rail. As a rule, several such arrangements are provided in order to form a suitable number of braking and / or guideways for the elevator car and the counterweight which may be provided. Each individual elevator rail can be mounted on each of its sides using a certain number of fastening devices. The particular advantage here is that no preparatory measures are required to adapt to, for example, production-related differences between the elevator rails. The adjustment of the required holding dimension can take place by the displacement of the first element relative to the second element in the direction of adjustment directly when the respective elevator rail is installed at its installation location.

A proposed solution also consists in a method for fastening a rail foot of an elevator rail, which is carried out with at least one fastening device which is designed in a proposed manner, the fastening device being mounted with respect to a fastening plane and wherein the displacement of the first element is fastened relative to the second element of the rail foot with respect to the fastening plane. This has corresponding advantages.

Particularly in the case of the method and for a preferred method of assembly, it is advantageous for a first fastening device on a first side of the rail foot and a second fastening device on a second side of the rail foot to be in relation to one another are mounted opposite to the rail foot so that the first fastening device and the second fastening device fix the rail foot along the adjustment direction, but allow the rail foot to be displaced along a longitudinal axis of the elevator rail. Accordingly, particularly in an elevator installation, the plurality of fastening devices can be mounted in pairs on a first side of the rail foot and on a second side of the rail foot opposite one another. However, other assemblies are also possible in the respective application. In principle, it is also possible that the proposed fastening devices are provided only on one side of the rail foot, while another type of fastening can be implemented on the other side, for example. Another type of fastening can consist, for example, of a rigid fastening clip which is suitably screwed on and has no mutually adjustable elements.

It is advantageous that the first element and the second element are designed in such a way that the holding dimension, in which play-free fastening of one side of a rail foot between the contact region and the support region is made possible by the displacement of the first element in the adjustment direction relative to the second element can be continuously reduced until the side of the rail foot of the elevator rail is fastened without play between the contact area and the support area. In principle, it is thus possible to adapt the holding dimension to any side of a rail foot of any elevator rail. If the special elevator rail that is to be mounted by the fastening device is determined, the setting of the holding dimension takes place in that the holding dimension can be continuously reduced by the displacement of the first element relative to the second element in the direction of adjustment until the selected side of the rail foot of the specific elevator rail between the contact area and the support area is attached without play. In particular, this makes it possible to adapt to variations in the thickness of the rail foot that are caused by production technology. In the fastened state, torsion of the elevator rail around its longitudinal direction is in particular reliably prevented. Movements of the elevator rail in a plane that is perpendicular to the longitudinal direction of the elevator rail can also be effectively restricted. In this case, fastened without play means that the rail foot is defined in its transverse position and, however, the rail foot can move along a longitudinal axis of the elevator rail in the event of a relative change in length between the building and the elevator rail. The attachment takes place here using such a first fastening device on a first side of the rail foot and using a second fastening device on a second side of the rail foot, so that they are mounted opposite one another on the rail foot. The second fastening device can preferably be of the same type, but it can also be constructed differently.

The respective second elements of the fastening devices lying opposite one another preferably each have a stop. By means of these stops on both sides, the rail base is positioned overall in the direction of adjustment. The positioning takes place in such a way that the rail foot is also kept free of play in the adjustment direction.

It is furthermore advantageous that the second element for fastening the side of the rail foot with respect to the adjustment direction is held at least substantially stationary with respect to the fastening plane when the first element for fastening the side of the rail foot is displaced relative to the second element in the adjustment direction.

In an alternative, the contact area is formed on the first element. It is also advantageous if the contact area is formed on a projection formed on the first element. In particular if the contact area is formed on a projection, the contact to the rail foot can exist at a defined location or a defined surface. This enables a defined storage or support. However, it is also possible for several projections to be provided to enable the system to be used. It can be advantageous here if there is a certain elasticity of the first element in order to implement an installation on all the projections provided. It is thus advantageously possible to implement a single or multi-point support on the first element. In this case, a direct contact of the rail foot with the contact area of the first element can be made possible.

In a modified embodiment, it is also possible for an intermediate layer to be provided which can be arranged between the rail foot and the first element for fastening the side of the rail foot. With such a liner is another Adaptation to the respective application possible. For example, the intermediate layer can have a sliding side facing the first element and / or a sliding side facing the rail foot. A sliding side facing the first element can in particular ensure optimum displaceability of the first element relative to the second element. As a result, the setting of the holding dimension is independent of the surface quality or the material of the rail foot. The sliding side facing the rail foot can also achieve optimum displaceability of the elevator rail relative to the fastening device in the longitudinal direction of the elevator rail, in order to compensate, for example, for temperature-related or building length-related relative length changes between the elevator rail and the building.
In a variant, the compensating means of the fastening device can be arranged offset along the longitudinal axis next to the support element.

In a preferred solution, the support area can be formed in a corresponding manner on the first element or on a projection formed on the first element. In particular if the contact area is formed on a projection, the contact to the rail foot can exist at a defined location or a defined surface. This enables a defined storage or support. However, it is also possible for several projections to be provided to enable the system to be used. It can be advantageous here if there is a certain elasticity of the first element in order to implement an installation on all the projections provided. It is thus advantageously possible to implement a single or multi-point support on the first element. Here, in particular, a direct contact of the rail foot with the contact area of the first element or with the support area of the support element can be made possible. In a modified embodiment, it is also possible with this solution that an intermediate layer is provided which can be arranged between the rail foot and the first element for fastening the side of the rail foot. Such an intermediate layer enables further adaptation to the respective application. For example, the intermediate layer can have a sliding side facing the first element and / or a sliding side facing the rail foot. A sliding side facing the first element can in particular ensure optimum displaceability of the first element relative to the second element. Through a sliding side facing the rail foot In addition, an optimal longitudinal displacement of the elevator rail can be achieved.

Furthermore, it is advantageous that at least one element is designed as a spring element. A suitable design can thus be selected in relation to the respective application. The inclination results in a translation of an adjustment taking place in the adjustment direction into a reduction in the holding dimension. Depending on the configuration, the relationship between the reduction of the holding dimension depending on the adjustment in the adjustment direction can be progressive, degressive or linear. A degressive relationship enables, for example, a quick reduction of the holding dimension at the beginning and a fine adjustment at the end. This is suitable for applications in which a large amount of play is initially required for assembly. Depending on the application, however, other relationships can also be modeled.

When designing the fastening device, it is possible for an additional support element to be provided. The support region is advantageously formed on such a support element. However, configurations without a separate support element are also conceivable. A configuration with a support element has the advantage that further installation options are opened up. For example, it is conceivable that an assembly position is defined via the support element or the support area and / or a stop on the support element, which enables an improved alignment of several elevator rails arranged together.

It is also advantageous here that the support element has a through opening or a groove which extends through the support element along the adjustment direction, and that at least the first element for fastening the side of the rail foot extends through the through opening or the groove of the support element. On the one hand, this enables a compact design in which a certain amount of guiding or securing against loss can be realized for the two elements. In addition, mechanical protection of the elements of the compensating means can be implemented in this embodiment. This is advantageous for the assembly of the elevator rails, among other things.

It is also advantageous that the second element for fastening the side of the rail foot is connected below or next to the support element with a base plate defining the fastening plane or that the second element for fastening the side of the rail foot lies on a base plate or that the second element is integrated in a base plate. When integrating the second element into a base plate, for example, a depression or an opening can be formed in the base plate, which, with or without an inclination, enables the first element to be lifted to reduce the holding dimension if the first element gradually moves in the direction of adjustment after being pulled out of the recess.

Fig. 1

eine Befestigungseinrichtung in einer schematischen, räumlichen Darstellung nicht entsprechend der Erfindung;

Fig. 2

eine Aufzugsschiene, die mittels Befestigungseinrichtungen gemäss Fig. 1 an einer Tragkonstruktion befestigt wird;

Fig. 3

den in Fig. 2 mit III bezeichneten Ausschnitt während der Montage der Aufzugsschiene;

Fig. 4

den in Fig. 2 mit III bezeichneten Ausschnitt im montierten Zustand;

Fig. 5

eine Zwischenlage für eine Befestigungseinrichtung;

Fig. 6

die Befestigungseinrichtung die zum Befestigen einer Seite eines Schienenfusses einer Aufzugsschiene dient;

Fig. 7

Befestigungseinrichtungen von denen eine teilweise dargestellt ist, und eine Tragkonstruktion in einer räumlichen Darstellung;

Fig. 8

eine Befestigungseinrichtung gemäss einem Ausführungsbeispiel der Erfindung in einer räumlichen Explosionsdarstellung;

Fig. 9

eine Aufzugsschiene, die mittels Befestigungseinrichtungen gemäss dem Ausführungsbeispiel an einer Tragkonstruktion befestigt ist;

Fig. 10

eine Aufzugsanlage in einer auszugsweisen, schematischen Darstellung gemäss einer möglichen Ausgestaltung der Erfindung und

Fig. 11

den in Fig. 10 mit XIII bezeichneten Ausschnitt einer Anordnung aus Aufzugsschienen zur Erläuterung einer möglichen Ausgestaltung der Erfindung.

Preferred embodiments of the invention are explained in more detail in the following description with reference to the accompanying drawings. Show it:

Fig. 1

a fastening device in a schematic, spatial representation not according to the invention;

Fig. 2

an elevator rail, which according to Fig. 1 is attached to a supporting structure;

Fig. 3

the in Fig. 2 III marked section during assembly of the elevator rail;

Fig. 4

the in Fig. 2 III marked section in the assembled state;

Fig. 5

an intermediate layer for a fastening device;

Fig. 6

the fastening device which serves to fasten one side of a rail foot of an elevator rail;

Fig. 7

Fastening devices, one of which is partially shown, and a supporting structure in a spatial representation;

Fig. 8

a fastening device according to an embodiment of the invention in a spatial exploded view;

Fig. 9

an elevator rail which is fastened to a supporting structure by means of fastening devices according to the exemplary embodiment;

Fig. 10

an elevator system in a partial, schematic representation according to a possible embodiment of the invention and

Fig. 11

the in Fig. 10 XIII section of an arrangement of elevator rails to explain a possible embodiment of the invention.

The reference numerals are the same for parts with the same effect across the figures.

Fig. 1 shows a fastening device 1 in a schematic, spatial representation according to a first embodiment. The fastening device 1 has a compensating means 2, in which Fig. 1 a first element 3 of the compensating means 2 is shown. The compensating means 2 also has a second element 4 ( Fig. 2 ) on.

The fastening device 1 of the first exemplary embodiment furthermore has a support element 5 which comprises a jaw 6 on which a surface 15 and a stop 8a are configured. The surface 15 and the stop 8a are each flat and at least approximately oriented perpendicular to one another. A support area 7 ( Fig. 2 ) educated. The support region 7 on the jaw 6 of the support element 5 can, in a modified embodiment, also be formed in another way, in particular directly by a flat support surface 15 formed by the surface 15. The fastening device 1 also has fastening means 9, 10, 11. The first element 3 of the compensating means 2 has a part 12 and a pull tab 13. The pull tab 13 is bent by 90 ° with respect to the part 12. If the support element 5 is fixed in place via the fastening means 11, the first element 3 can be adjusted in a direction of adjustment 14 by a fitter on the pull tab 13. As an alternative to the pull tab 13, an opening can also be provided in the first element 3, which can be used, for example, to attach a screwdriver to adjust the first element 3 in the adjustment direction 14.

Fig. 2 shows an elevator rail 20, which is fastened to a supporting structure 21 by means of fastening devices 1, 1A according to the first exemplary embodiment, in an excerpted, schematic sectional illustration. The elevator rail 20 has a rail foot 22 with a rail head 17, a first side 23 and a second side 24. Furthermore, 20 tracks 25, 26 are formed on the elevator rail, which serve as braking and / or guideways 25, 26. The fastening device 1 is used to fasten the first side 23 of the rail foot 22 to the supporting structure 21. The fastening device 1A is designed in accordance with the fastening device 1, which is used to fasten the second side 24 of the rail foot 22 to the supporting structure 21. The fastening devices 1, 1A are mounted opposite one another on the rail foot 22. They fix the rail foot 22 through their joint action. The assembly takes place in such a way that the stop 8a of the support element 5 of the fastening device 1 prevents the rail foot 22 from being displaced in the adjustment direction 14. The same applies to the fastening device 1A and the adjustment direction 14A given for the fastening device 1A. This prevents displacement of the rail foot 22 on both sides along the adjustment direction 14 or the adjustment direction 14A.

In this embodiment, a base plate 27 is provided. The base plate 27 forms a fastening plane 28. Here, the base plate 27 is connected in a suitable manner to the support structure 21 or, together with the support structure, it forms a part that belongs together, for example a fastening angle. The second element 4 of the compensating means 2 of the fastening device 1 and a second element 4A of a compensating means 2A of the fastening device 1A are integrated in the base plate 27 in this exemplary embodiment. A type of fastening and a method for fastening the rail foot 22 of the elevator rail 20 according to the first exemplary embodiment is shown in FIG 3 and 4 described in more detail below.

The assembly takes place in such a way that the fastening devices 1, 1A together fix the rail foot along the adjustment direction 14, 14A and in a guide direction 16 lying transversely to the adjustment direction 14, 14A, but a displacement of the rail foot 22 along a longitudinal axis 29 of the elevator rail 20 is made possible. In this way, for example in the case of a building being set or in the event of relative length changes due to temperature, the rail base 22 can be displaced relative to the fastening plane 28.

Fig. 3 shows the in Fig. 2 III designated section of the fastening device 1 during the assembly of the elevator rail 20. Furthermore, the Fig. 4 the in Fig. 2 III marked section in the assembled state. Based on 3 and 4 the attachment to the first side 23 of the rail foot 22 is described. The attachment to the second side 24 of the rail foot 22 is carried out in a corresponding manner.

Fig. 3 shows the first element 3 in an initial state specified for assembly. One end 30 of the first element 3, which faces away from the pull tab 13, lies on an upper side 31 of the base plate 27. The second element 4 integrated in the base plate 27 has a recess 32, which is designed as a through opening 32 in this exemplary embodiment. A bent part 33 is in the starting position in the recess 32 of the second element 4. A wedge-shaped part 34 is formed on the bent part 33, the wedge-shaped part 34 having a sliding surface 35. The sliding surface 35 is assigned to an edge 36 of the second element 4. In this case, a rounded or beveled edge 36 can be provided in order to facilitate an adjustment of the first element 3 in the adjustment direction 14.

In a modified embodiment, instead of the edge 36, an inclined surface, in particular a sliding surface, can also be provided on the second element 4, which is assigned to the sliding surface 35 of the first element 3. Furthermore, in a modified embodiment, it is possible that the recess 32 is not designed as a through opening 32 but as a recess 32 in the second element 4.

During assembly, the support element 5 is fastened to the support structure 21, the first side 23 of the rail foot 22 being located partially between the jaw 6 of the support element 5 and the first element 3 resting on the base plate 27. Here, the support element 5 is mounted in a fixed position with respect to the fastening plane, with a displacement of the rail foot 22 in the adjustment direction 14 due to the system the rail foot 22 is prevented. The support element 5 can be adjusted and fixed in such a way that the rail foot 22 is fixed in the adjustment direction 14 by means of the stop 8a.

The support area 7 is in a possible embodiment, which in the 3 and 4 is shown, formed on the protrusion 37 on the surface 15 of the jaw 6. Furthermore, a projection 39 is formed on a part 38 of the first element 3, on which a contact area 40 is formed. Between the support area 7 and the contact area 40 there is a holding dimension 41 which is initially larger than a required holding dimension 42. The required holding dimension 42 is determined here by the geometry of the rail foot 22. Due to manufacturing-related tolerances, there are generally different holding masses 42 for different elevator rails 20, 20A ( Fig. 11 ) or for different foot areas of the elevator rails 20, 20A.

After the support element 5 is mounted and fixed, the first element 3 is adjusted in the adjustment direction 14 until the in the Fig. 4 situation occurs, in which the holding dimension 41 between the support region 7 and the contact region 40 is equal to the required holding dimension 42, which is determined by the geometry of the rail foot 22. In the adjusted position, in the Fig. 4 is shown, the first element 3 acts on the rail foot 22 against the jaw 6 of the support element 5. Due to the configuration of the first element 3 with the bent part 33, the first element 3 can be designed as a spring element 3. However, a possible prestressing force is limited in such a way that the desired displacement of the rail foot 22 along the longitudinal axis 29 of the elevator rail 20 is made possible. Alternatively, the first element 3 with the bent part 33 is designed as an essentially inelastic component. The holding dimension 41 can thus be adapted precisely and force-free to the geometry of the rail foot 22. This enables an almost disability-free longitudinal displacement of the rail foot 22 relative to the fastening plane 28.

In addition, the support area 7 and the contact area 40 and possibly also the stop 8a can be provided with sliding coatings in order to facilitate the longitudinal displacement of the rail foot 22 or to reduce a corresponding puncture force.

To the existing in the initial state 41, which in the Fig. 3 is shown to reduce to the required holding dimension 42, a displacement s _{11 is} required in this embodiment. The first element 3 is actuated by this displacement s ₁₁ in the adjustment direction 14 in order to achieve the fastening. In this case, the first element 3 slides along its edge 36 with its sliding surface 35 formed on the wedge-shaped part 34 until the in the Fig. 4 shown end position is reached. After the holding dimension 41 has been set, the first element 3 is in this position, for example, by means of the in FIG Fig. 1 shown fasteners 9, 10 fixed.

Fig. 5 shows a possible intermediate layer 50 for a fastening device 1 according to a second embodiment in an excerpt spatial representation. The intermediate layer 50 preferably has a constant thickness 51. Furthermore, the intermediate layer 50 can be configured on its upper side 52 and / or its lower side 53 as a sliding side 52, 53. A configuration of the intermediate layer 50 or a coating on the upper side 52 and / or the lower side 53 with Teflon or other sliding coatings is possible. In addition, a side of the intermediate layer 50 facing the rail foot 22 can be arched (not shown), thereby preventing the rail fastening from being braced when the fastening plane 28 is inclined slightly.

In this exemplary embodiment, the intermediate layer 50 has a mounting groove 54 which is designed in such a way that the jaw 6 can be at least partially inserted into the mounting groove 54. A dimension 55 of the mounting groove results from a corresponding dimension 55 of the jaw 6 of the support element 5, which in Fig. 1 is shown. This will in the assembled state, which in the Fig. 6 a mounting of the mounting groove 54 from the jaw 6 that is as free of play as possible with respect to the longitudinal axis 29 is illustrated. This ensures that the intermediate layer 50 remains essentially stationary with respect to the fastening device 1 and that any sliding movement takes place between the lower side 56 of the rail foot 22 and the upper side 52 of the intermediate layer 50. In a detailed embodiment, the intermediate layer 50 can be made symmetrical, so that the upper side 52 or the lower side 53 can be exchanged. This prevents any incorrect assembly.

Fig. 6 shows the fastening device 1 according to the second embodiment, the serves to fasten the first side 23 of the rail foot 22 of the elevator rail 20. The jaw 6 is configured accordingly in this exemplary embodiment, so that the additional thickness 51 of the intermediate layer 50 is taken into account. In this exemplary embodiment, the projection 39 of the first element 3 lies against the underside 53 of the intermediate layer 50 in the assembled state. Furthermore, the top 52 of the intermediate layer 50 bears against a bottom 56 of the rail foot 22. The projection 37 of the jaw 6 of the support element 5 lies against an upper side 57 of the rail foot 22.

In the among others in the 3 and 4 The first exemplary embodiment shown is the top 57 of the rail foot 22 directly against the support region 7 of the support element 5. Furthermore, the underside 56 of the rail foot 22 lies directly against the contact area 40 of the first element 3 of the compensating means 2.

When using the 5 and 6 In the exemplary embodiment described, the rail foot 22, however, bears against the contact region 40 of the projection 39 of the first element 3 of the compensating means 2 by means of the intermediate layer 50. In the event of a relative change in the length of the elevator rail 20 along its longitudinal axis 29, for example caused by a building, the bottom 56 of the rail base 22 slides along the top 52 of the intermediate layer 50 52 can be reduced. In a modified embodiment, it is also possible that, additionally or alternatively, an indirect contact of the upper side 57 of the rail foot 22 on the support region 7 of the support element 5 is realized. Furthermore, an adjustment of the first element 3 or the contact with the contact area 40 of the first element 3 can be improved by the intermediate layer 50. In particular, by designing the underside 53 of the intermediate layer 50 as a sliding side 53, the friction with respect to the first element 3 can be reduced. In addition, the intermediate layer 50 prevents the position of the first element 3 from being changed when the rail foot 22 moves relative to the fastening device 1 due to forces acting along the longitudinal axis 29, since there is no relative movement between the projection 39 and the underside 53 of the intermediate layer 50 occurs.

Fig. 7 shows fastening devices 1, 1A according to a third embodiment and a support structure 21 in a spatial representation, the fastening device 1A is partially shown. The fastening device 1 has the support element 5 screwed onto the base plate 27. Furthermore, the fastening device 1 has a first element 3, which is offset along the longitudinal axis 29 next to the support element 5, and a second element 4 integrated into the base plate 27. Correspondingly, the fastening device 1A has the support element 5A and the second element 4A integrated in the base plate 27. The first element of the fastening device 1A is not shown.

A wedge-shaped part 34 is formed on the first element 3, which moves when the first element 3 is adjusted in the adjustment direction 14 relative to the second element 4 or the base plate 27. As a result, the setting of the holding dimension 41 takes place as previously explained, in that when the first element 3 is adjusted in the adjustment direction 14, the wedge-shaped part 34 is adjusted via the recess 32 machined into the base plate 27 until the holding dimension 41 corresponds to the required holding dimension 42. In its end position, the first element 3 is then fixed relative to the second element 4 via the fastening means 9. In this way, the first side 23 of the rail foot 22 can be pressed against the support region 7 of the support element 5 in order to fasten the first side 23 of the rail foot 22. Correspondingly, the second side 24 of the rail foot 22 is fastened with the fastening device 1A.

The base plate 27 is designed to be L-shaped and screwed to the support structure 21 on one side 58. The mounting level 28 is located on the base plate 27. The mounting level 28 is characterized in that it is stationary with respect to the supporting structure 21. The fastening means 9, 11, 11A allow the supporting elements 5, 5A and the first elements 3 of the compensating means 2, 2A to be fixed or fixed with respect to the fastening plane 28, the first element of the compensating means 2A not being shown. Fixed arrangement of the fastening level 28 with respect to the supporting structure 21 means that the base plate 27 can be adjusted with the fastening level 28 in relation to the supporting structure 21, so that inaccuracies in the building can be leveled out by aligning the base plate 27 during assembly. After adjustment, the base plate 27 is screwed to the support structure 21, for example, so that the fastening plane 28 is stationary with respect to the support structure 21.

Fig. 8 shows a fastening device 1 according to a fourth embodiment in a spatial exploded view. In this embodiment, the support element 5 itself is designed as a compensating means 2. A stop 8 is formed on the second element 4 of the compensating means 2. By positioning the second element 4 and the corresponding stop 8, the rail foot is positioned in the direction of the adjustment direction 14.

The first element 3 is at least partially inserted into the second element 4, a wedge-shaped part 34 of the first element 3 abutting a wedge-shaped part 60 of the second element 4. The system is preferably carried out on inclined surfaces 35, 61 which are designed as first and second sliding surfaces 35, 61.

Furthermore, a projection 62, in particular a cuboid or lip-shaped projection 62, is formed on the first element 3, the support region 7 being formed on a projection 37 provided on the projection 62. The one in the representation of the Fig. 8 hidden projection 37 may, for example, correspond to that in FIG Fig. 3 projection 37 shown may be formed. In a modified embodiment, in which such a projection 37 is not provided, the support region can also be designed in the form of a support surface 15 formed on the projection 62. Furthermore, a fastening means 11 is provided, which can be formed, for example, from a screw and a nut. A passage in the first element 3 for the passage of the fastening means 11 is designed as an elongated hole, so that the first element 3 can be displaced in relation to the second element 4. The elongated hole or the passage opening 75 can also be provided in the second element 4.

The fastening of the elevator rail 20 by means of fastening devices 1, 1 A in accordance with the in Fig. 8 The fourth exemplary embodiment illustrated is also below with reference to FIG Fig. 9 further described.

Fig. 9 shows the elevator rail 20 which is fastened by means of the fastening devices 1, 1A to a fastening plane 28 or to the supporting structure 21. For assembly, the rail base 22 is supported on rounded heads 63, 64 by screw elements 65, 66. Standard screws with semicircular heads can be used. Define the rounded heads 63, 64 of the screw elements 65, 66 the contact area 40. In this case, a direct contact of the underside of the rail foot 56 with the contact area 40 is provided. In the case of a modified embodiment, however, an indirect system can also be provided, for example that in FIG Fig. 5 Intermediate layer 50 shown can be used in a correspondingly modified embodiment.

The compensating means 2 and at the same time the supporting element 5 are realized by the first and second elements 3, 4, wherein, as previously stated, the rail foot can be positioned in the direction of the adjustment direction 14 by positioning the second element 4 and the corresponding stop 8a. Corresponding slots are provided in the base plate 27 for this purpose. By moving the first element 3 in the adjustment direction 14 relative to the second element 4, the projection 62 with the support region 7 can be lowered, as is illustrated by an arrow 67. This reduces the holding dimension 41 to the required holding dimension 42. The fastening means 11 is then tightened, as is illustrated by an arrow 68, so that the two elements 3, 4 of the compensating means 2 are fixed to one another and with respect to the fastening plane 28. Depending on the design of the fastening device 1, an intermediate piece 69 can also be provided in order to increase a possible holding dimension 41. If necessary, the first sliding surface 35 and the second sliding surface 61 can be roughened to prevent unintentional adjustment during later operation.

The second side 24 of the rail foot 22 is fastened in a corresponding manner by means of the fastening device 1A.

Fig. 10 shows an elevator system 100 in a partial, schematic representation according to a possible embodiment of the invention. The elevator installation 100 has a plurality of elevator rails 20, 20A, 20B, 20C. Here, the elevator rails 20, 20A are part of an arrangement 80 of a plurality of elevator rails 20, 20A, which extend along a longitudinal axis 29 through the elevator shaft 81. As a result, tracks 25, 26 are formed which serve as braking and / or guideways 25, 26 for an elevator car 82. Accordingly, further arrangements of elevator rails can be provided. A further arrangement 83 with the elevator rails 20B, 20C is shown as an example, which also serves for the elevator car 82. Further such arrangements of elevator rails can be provided for a counterweight 84. The Counterweight 84 is connected to the elevator car 82 via a suspension element 85.

Fig. 11 shows the in Fig. 10 XIII section of the arrangement 80 from the elevator rails 20, 20A to explain a possible embodiment of the invention. The arrangement 80 here consists of a plurality of elevator rails 20, 20A, of which only the elevator rails 20, 20A are shown in extracts. The elevator rails 20, 20A are arranged along a longitudinal axis 29 and abut one another at an interface 85. At the interface 85, the elevator rails 20, 20A are joined together by means of connecting straps 89. As a result, uninterrupted tracks 25, 26 are formed on the arrangement 80 from the elevator rails 20, 20A. The elevator rail 20 has the rail foot 22 with the first side 23 and the second side 24. Correspondingly, the elevator rail 20A has a rail foot 86 with a first side 87 and a second side 88. A suitable number of fastening devices is used to fasten the elevator rails 20, 20A, fastening devices 1, 1A, 1B, 1C being shown schematically.

As it is based on the 3 and 4 is illustrated, the displacement s ₁₁ enables the first side 23 of the rail foot 22 of the elevator rail 20 to be fastened by means of the fastening device 1. A displacement s ₁₂ is used for fastening the second side 24 of the elevator rail 20. The displacement s ₁₁ and the displacement s ₁₂ can be the same, but also different. Correspondingly, a displacement s _{21 is} carried out on the fastening device 1B for fastening the first side 87 of the rail foot 86. For fastening the second side 88 of the rail foot 86 there is a displacement s ₂₂ on the fastening device 1C. In general, the displacement s ₂₁ differs from the displacement s ₁₁ because, for example, there are manufacturing tolerances between the individual elevator rails 20, 20A which lead to different values for the required holding dimension 42 ( Fig. 3 ) to lead. The assembly is nevertheless particularly simple, since the respectively required displacement s _ij (i, j = 1, 2) occurs or arises when the first element 3 is adjusted relative to the second element 4 in the adjustment direction 14 when the clamping of the respective side 23, 24, 87, 88 of the rail foot 22, 86 of the respective elevator rail 20, 20A is reached.

The invention is not restricted to the exemplary embodiments described.

Claims (10)

1. A fastening device (1), which is used to fasten one face (23) of a rail foot (22) of an elevator rail (20) relative to a fastening plane (28), comprises a support region (7) and a contact region (40), between which the face (23) of the rail foot (22) can be arranged, the contact region (40) facing a lower side (56) of the rail foot (22) and the support region (7) facing a top side (57) of the rail foot (22), a compensation means (2) being provided, the compensation means (2) having a first element (3) and a second element (4), which can be moved relative to each other in an adjustment direction (14) used to fasten the face (23) of the rail foot (22) of the elevator rail (20), the first element (3) and the second element (4) being designed such that, between the contact region (40) and the support region (7), a holding dimension (41), viewed perpendicularly to the adjustment direction (14), in which a zero-backlash fastening of one side of a rail foot is enabled between the contact region (40) and the support region (7), can be modified by a movement of the first element (3) relative to the second element (4) occurring in the adjustment direction (14), and the support region (7) being formed on the first element (3) and/or the support region (7) being formed on at least one protrusion (62) formed on the first element (3),
   characterized in that
   at least one first sliding surface (35) that has a constant inclination relative to the adjustment direction (14) is formed on the first element (3), and in that a second sliding surface (61) that has a constant inclination relative to the adjustment direction (14) is formed on the second element (4).
2. The fastening device according to claim 1, characterized in that
   the inclination of the second sliding surface (61) corresponds to the inclination of the first sliding surface (35) and/or in that the first sliding surface (35) cooperates with the second sliding surface in order to set the holding dimension (41).
3. The fastening device according to either of claims 1 or 2, characterized in that
   a support element (5) is provided which comprises the first element (3) having the support region (7) and the second element (4), at least one stop (8) being formed on the second element (4).
4. The fastening device according to claim 3, characterized in that
   the stop (8) positions the rail foot in the adjustment direction (14).
5. The fastening device according to either claim 3 or claim 4, characterized in that the support element (5) comprises a through-opening (75) or a groove that extends through the support element (5) in the adjustment direction (14), and in that at least the first element (3) can be moved along the through-opening (75) or the groove in the support element (5) in order to fasten the face (23) of the rail foot (22).
6. The fastening device according to any of claims 1 to 5, characterized in that
   it is made possible for the rail foot (22) to directly contact the contact region (40) and/or the support region (7), or in that an intermediate layer (50) is provided that can be arranged between the rail foot (22) and the contact region (40) and/or the support region (7) in order to fasten the face (23) of the rail foot (22), the intermediate layer (50) comprising a sliding face (53) facing the contact region (40) and/or the support region (7), and/or the intermediate layer (50) comprising a sliding face (52) facing the rail foot (22).
7. The fastening device according to any of claims 1 to 6, characterized in that
   the second element (4) is connected to a base plate (27) in order to fasten the face (23) of the rail foot (22), or in that the second element (4) rests on a base plate (27) in order to fasten the face (23) of the rail foot (22).
8. An elevator system (100) comprising at least one assembly (80) of elevator rails (20, 20A) arranged in succession along a longitudinal axis (29) and a plurality of fastening devices (1, 1A, 1B, 1C) each designed according to any of claims 1 to 7, the fastening devices (1, 1A, 1B, 1C) each being assigned to the faces (23, 24, 87, 88) of the rail feet (22, 86) of the elevator rails (20, 20A), and each of these fastening devices (1, 1A, 1B, 1C) making it possible to set the holding dimension (41) required on the assigned face (23, 24, 87, 88) of the rail foot of the assigned elevator rail (20, 20A).
9. A method for fastening a rail foot (22) of an elevator rail (20), carried out using at least one fastening device (1) according to any of claims 1 to 7, the fastening device (1) being mounted relative to a fastening plane (28) and the rail foot (22) being fastened relative to the fastening plane (28) by the movement (s₁₁) of the first element (3) relative to the second element (4), which takes place in the adjustment direction (14).
10. The method according to claim 9, characterized in that
    a first fastening device (1) is mounted on the rail foot (22) on a first face (23) of the rail foot (22) and a second fastening device (1A) is mounted on said rail foot on a second face (23) of the rail foot (22) so as to be opposite one another such that the first fastening device (1) and the second fastening device (1A) fasten the rail foot (22) in the adjustment direction (14) but allow movement of the rail foot (22) along a longitudinal axis (29) of the elevator rail (20).

Images