EP3381856A1 - Fastening set with at least one fastening element for fastening a rail of an elevator assembly in an elevator shaft - Google Patents

Abstract

A rail clamp (18) serves to fasten a rail (3) of an elevator installation (1) to a contact body (15) arranged stationarily in an elevator shaft (4). The rail clamp (18) comprises a clamping element (26) and a support element (25), which are fastened to the contact body (15) via a fastening element (19). In this case, the clamping element (26) is supported on the support element (25) in the mounted state. In the assembled state results between a clamping bracket (27) of the clamping element (26) and a by the contact body (15) certain contact surface (16) to which a rail (8) of the rail (3) at least indirectly applied, a holding dimension (H ) for holding the rail foot (8). The support element (25) comprises a wedge-shaped part (30) on which a wedge surface (31) is formed. The clamping element (26) comprises a wedge-shaped part (32), on which a wedge surface (33) is formed. The clamping element (26) is in the mounted state with its wedge surface (33) on the wedge surface (31) of the support element (25). During assembly, the clamping element (26) is adjusted against the support element (25) to adjust the holding dimension (H). Furthermore, a fastening set (2) with at least one such rail clamp (18) is specified. The clamping element (26) and the supporting element (25) are in the assembly for adjusting the holding dimension (H) in a along the extension (43) of the mounted in the mounted state on the contact surface (16) of the contact body (15) rail foot (8) oriented direction (Z) against each other adjustable.

Description

The invention relates to a rail clamp which serves for fastening a rail of an elevator installation to a contact body arranged stationarily in a lift shaft, and to a fastening set with a contact body, at least one fastening element and at least one rail clamp. Furthermore, the invention relates to a method for fastening a rail of an elevator installation in a lift shaft.

From the ES 2 492 791 A1 is a rail clamp for a lift known. The rail clamp serves in this case for fastening a rail of the elevator in a lift shaft. The rail clamp has a clamping element and a support element, which are screwed together by means of a screw to plant. Here, the clamping element is effectively bent Z-shaped to pinch one side of a rail foot between the clamping element and the support element.

The from the ES 2 492 791 A1 known rail clamp has the disadvantage that the resulting clamping force is structurally predetermined. In contrast, it can come on the rail, for example, by manufacturing tolerances to thickness differences, which in the known rail clamp significant, different clamping forces can occur. Now, if a clearance-free attachment specified as a requirement, then very high clamping forces can result in individual cases. This may be undesirable for the following reasons.

When installing an elevator system in a building, the rails can be attached to a building wall. The built-in rails then extend over an entire route of the elevator, which often corresponds approximately to a height of the building. Such rails can serve as guide rails for an elevator car or a counterweight of the elevator. In particular, guide rails must be fastened so strongly in the building that they can safely absorb the lateral guide forces which occur, for example, when the elevator car or counterweight is being guided. This requires a backlash-free attachment.

On the other hand, it must be taken into account especially in a newly constructed building, that the building height can change over time. The building shrinks as a result of dehydration and settlement even after its completion. But changes in the building height can also be caused by changes in temperature and solar radiation. Therefore, in addition to the requirement of a play-free attachment, the requirement that a clamping force is as low as possible or at least does not exceed a certain maximum value in order to enable said length compensation to the rail fastening.

With a play-free, but limited in terms of clamping force attachment of rails then occurring relative length changes between the rails and the building can be compensated after the completion of the building or the elevator system. For example, in a building shrinkage, the guide rails grow in relation to the building, then deformation of rail sections can be avoided, since in a sense slipping at the attachment points of the relevant guide rail is possible.

The object of the invention is to provide a rail clamp, which serves for fastening a rail of an elevator installation, a fastening set with such a rail clamp and a method for fastening a rail of an elevator installation, which are designed improved. Specifically, this may be the task to provide an improved assembly and / or improved specification of acting at an attachment point of the rail fastening force. Furthermore, the rail clamp should minimize the required lateral installation space.

In the following, solutions and proposals for a corresponding embodiment are given, which relate to a rail clamp, a fastening set and a method for fastening a rail of an elevator installation in an elevator shaft and at least solve parts of the task. Furthermore, advantageous additional or alternative developments and refinements are specified or described.

In one solution, a rail clamp can be specified which serves for fastening a rail of an elevator installation to a support body arranged stationarily in an elevator shaft, the rail clamp having a clamping element and a support element which can be fastened to the contact body via a fastening element, wherein the clamping element in the assembled state on the Supporting member is supported, wherein in the assembled state between a clamping bracket of the clamping element and a fixed contact surface by the bearing body on which a rail of the rail at least indirectly, a holding measure for holding the rail results, wherein the support member has a wedge-shaped part, on which a Wedge surface is formed, wherein the clamping element has a wedge-shaped part, on which a wedge surface is formed, wherein the clamping element in the mounted state with its wedge surface at least indirectly abuts the wedge surface of the support element, wherein the clamping element and the support member during assembly for adjusting the holding dimension are mutually adjustable and wherein the clamping element and the support member in the assembly for adjusting the holding dimension in a along the extension of the fitting in the mounted state on the contact surface of the contact body rail foot oriented direction against each other adjustable ar are.

It should be noted that the contact body and / or the fastening element is not necessarily a part of the rail clamp according to the invention. Furthermore, the rail clamp can also be manufactured and distributed independently of such a contact body, a fastening element and of course also independently of a rail of an elevator installation. Accordingly, the attachment set given below can be manufactured and distributed independently of a rail of an elevator installation.

In a further solution, a fastening set can be specified with a contact body, wherein the fastening set has at least one fastening element and at least one rail clamp according to a proposed embodiment. Preferably, a fastening set has at least two fastening elements and at least two rail clamps.

Furthermore, a method for fastening a rail of an elevator installation in an elevator shaft can be specified by means of at least one attachment set according to a proposed embodiment, wherein the attachment body of the attachment set is arranged stationarily in the elevator shaft, wherein a rail foot of the rail at least indirectly to a determined by the plant body Investment surface is applied, wherein the rail is attached to the at least one rail clamp of the mounting set to the contact body and wherein a in the assembled state between the clamping bracket of the clamping element of the rail clamp and the contact surface determined by the contact surface resulting holding measure by a is adjusted against each other adjusting the clamping element and the support member of the rail clamp, wherein the clamping element and the support member during assembly for adjusting the holding dimension preferably in a along the extension of the applied in the mounted state on the contact surface of the contact body rail foot oriented direction against each other.

Advantageously, the rail clamp can be delivered laterally to the rail foot via a slot provided in the contact body, so as to ensure a lateral guidance of the rail. Accordingly, the method for fastening the rail advantageously provides that the rail clamp is delivered laterally to the rail foot.

The rail clamp does not necessarily have a fastening element, via which the clamping element and the support element are fastened to the contact body. In particular, the clamping element and the support element can also be designed so that standardized, in any case used during assembly of the elevator installation used fasteners can be used. Specifically, a fastener in the form of a screw and an optionally provided nut and a washer or the like can be used. In particular, with regard to a geometry of a head of the fastener, in particular a screw head, it may be advantageous if the fastener is sold together with the clamping element and the support element. Especially in the configuration of a fastening set, the individual components can be matched to one another in an advantageous manner.

It is advantageous that the clamping element rests in the mounted state with its wedge surface directly on the wedge surface of the support element. As a result, the assembly can be simplified because the number of components required is low. Furthermore, this can be ensured in a simple manner that in the assembled state, changes in the set holding dimension are prevented. In this case, it is particularly advantageous if a material combination between the clamping element and the support element is predetermined at least on the wedge surface of the clamping element and on the wedge surface of the support element so that in the mounted state prevents sliding of the clamping element on its wedge surface relative to the wedge surface of the support element is. In the simplest case, the wedge surfaces can be particularly flat and designed with a low surface roughness, so that in the assembled state due to the material pairing a Prevented relative movement and thus a reliable specification of the holding gauge is reached.

However, it is also advantageous that the clamping element on its wedge surface and / or the support element on its wedge surface with surface properties, in particular geometric surface structures, configured or are that counteract in the mounted state of an adjustment of the clamping element against the support element. In principle, an embodiment with special surface properties is also feasible in the case of an indirect abutment of the clamping element with its wedge surface on the wedge surface of the support element, for example by means of an intermediate layer. Preferably, however, there is a direct system or a configuration with regard to an installation in a direct system. Surface structures, such as transverse grooves, which are transverse to the adjustment during assembly, in this case can achieve a geometric form fit. In a simple design, the surfaces are simply roughened to prevent an adjustment.

The clamping element and the support member are adjusted during assembly for adjusting the holding dimension in a along the extension of the voltage applied to the contact surface of the contact body rail foot direction against each other. Especially with a specification of a backlash-free but as powerless attachment on the holding measure then act accordingly low forces along the extension of the rail foot. On the other hand, high forces which occur, for example, in the guidance of an elevator car or a counterweight may arise in the two further directions which are perpendicular thereto. These high forces can then be absorbed in a reliable manner, without an adjustment of the holding gauge is possible. With respect to the oriented along the extension of the rail foot direction is then in the assembled state, preferably a relative movement of the rail relative to the rail clamp or with respect to the mounting set possible to compensate, for example, by a building settlement relative changes in length between a building height and a length of the rail along its extension. In the other two perpendicular thereto, however, preferably no or at least no significant movement of the rail of the rail rail with respect to the contact body possible because in this respect is given by the mounting set with the at least one rail clamp a preferably backlash-free and preferably rigid mounting in the assembled state. The oriented along the extension of the rail foot direction is in the assembled state so parallel to the predetermined longitudinal alignment of the rail in the elevator shaft.

It is also advantageous that on the support member and / or on the clamping element a side guide is formed for a longitudinal side of the rail foot, which supports the rail in or against a direction parallel to the contact surface of the contact body and perpendicular to a along the extension of is oriented oriented on the contact surface of the abutment body rail foot oriented direction. Thus, a side guide can be realized in an advantageous manner, which can absorb high forces during operation, without this could lead to an adjustment of the holding gauge.

Furthermore, it is advantageous that at least one contact part is designed and arranged relative to the rail foot on the clamping bracket of the clamping element, that the holding dimension between the contact part and the contact surface of the contact body is determined. In particular, an at least approximately point or line-shaped contact region can be predetermined by the contact part. As a result, a particularly good adjustment of the holding gauge and a guarantee of the holding gauge even with relative changes in length between the rail and a building is possible.

It is advantageous that the clamping element, in particular the clamping bracket of the clamping element is designed so that in the assembled state, a high rigidity of the fastening of the rail foot is realized on the holding dimension. This also allows a backlash-free attachment and a low clamping force. Executives can then be reliably absorbed even at low clamping force, without causing a significant change in the holding gauge in the loaded state. The proposed adjustability of the holding gauge is in this case particularly compatible with a largely arbitrarily rigid design of the clamping element, in particular of the clamp. A high rigidity of the clamp can be achieved by an appropriate dimensioning and design of the clamp by this example is carried out with large dimensions. The transition areas from the clamp to the subsequent area of the clamping element are designed so that the required forces can be transmitted.

It is furthermore advantageous that the clamping element has an upper side and that the upper side, at least without a significant change in height, in a direction oriented perpendicular to the abutment surface of the abutment body from the clamping bracket to the wedge-shaped part of the clamp merges. This allows in particular a flat configuration of the mounted rail clamp. As a result, collision problems with other elements of the elevator installation can be avoided from the outset.

It is advantageous that the clamping element has a receptacle located in the top, which serves for receiving a head of the fastener. In particular, in this case, a screw head can be at least partially absorbed by the recording. As a result, the flat geometry of the rail clamp in the assembled state can also be ensured with respect to the fastening element.

Especially for the fastening set, it is advantageous that the contact body has a through opening through which the fastening element extends in the mounted state, and that the passage opening for adjusting a formed on the support member and / or the clamping element of the rail clamp side guide for a longitudinal side of the rail Setting game in or against a direction pretending that is oriented parallel to the contact surface of the contact body and perpendicular to a along the extension of the voltage applied to the contact surface of the contact body rail foot direction. Thus, in this regard, an adaptation to the geometry of the rail foot can be achieved. This makes possible a particularly good guidance and an advantageous reception of the executives working during operation. Furthermore, it is ensured in particular by a two-sided lateral guidance of the rail foot that the rail foot does not move out of the set holding dimension.

In this regard, it is also advantageous if a first rail clamp, a first fastening element for the first rail clamp, a second rail clamp and a second fastening element for the second rail clamp are provided, wherein the first rail clamp and the second rail clamp are arranged on the contact body, that the first rail clamp for fixing the rail to a first side part of the rail foot is used and that the second rail clamp is used for attaching the rail to a second side part of the rail foot. In each case, an adjustment of the respective required holding dimension can be made on both side parts.

It is also advantageous that the first rail clamp and the second rail clamp already before assembly by means of the first fastener and the second Fastener are pre-assembled to the plant body. As a result, an advantageous production of the attachment set is possible, which also ensures that the individual components of the attachment set are coordinated. In particular, this ensures that a head of the fastening element can be received by a receptacle located in the surface of the clamping element.

Fig. 1

zeigt eine auszugsweise, schematische Darstellung einer Schiene einer Aufzugsanlage, die mittels eines Befestigungssets in einem Aufzugsschacht befestigt wird, zur Erläuterung eines Ausführungsbeispiels der Erfindung.

Fig. 2

zeigt einen schematischen Schnitt durch die in Fig. 1 gezeigte Schiene und das Befestigungsset in dem mit II bezeichneten Ausschnitt.

Fig. 3

zeigt eine Schienenklemme und ein Befestigungselement des in Fig. 1 dargestellten Befestigungssets in einer räumlichen Explosionsdarstellung.

Fig. 4

zeigt die in Fig. 2 dargestellte Schienenklemme und das Befestigungselement bei der Montage aus der in Fig. 1 mit IV bezeichneten Blickrichtung.

Fig. 5

zeigt eine schematische Schnittdarstellung des in Fig. 1 dargestellten Schienenfußes zur Erläuterung von Führungskräften, die im Betrieb auftreten können.

Fig. 6

zeigt eine Aufzugsanlage in einer auszugsweisen, schematischen Darstellung, bei der eine Schiene entsprechend dem Ausführungsbeispiel in einem Aufzugsschacht befestigt ist.

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

Fig. 1

shows a partial, schematic representation of a rail of an elevator installation, which is fastened by means of a fastening set in a lift shaft, for explaining an embodiment of the invention.

Fig. 2

shows a schematic section through the in Fig. 1 shown rail and the attachment set in the designated II section.

Fig. 3

shows a rail clamp and a fastener of the in Fig. 1 shown fastening sets in a three-dimensional exploded view.

Fig. 4

shows the in Fig. 2 illustrated rail clamp and the fastener during assembly from the in Fig. 1 with IV designated viewing direction.

Fig. 5

shows a schematic sectional view of the in Fig. 1 illustrated rail foot to explain executives who may occur during operation.

Fig. 6

shows an elevator system in a partial, schematic representation, in which a rail according to the embodiment is mounted in an elevator shaft.

Fig. 1 shows a partial, schematic representation of a rail 3 of an elevator installation 1 (FIG. Fig. 6 ), which is fastened by means of a fastening set 2 in an elevator shaft 4 of the elevator installation 1, to explain an embodiment. The rail 3 has a rail head 5 with guide surfaces 6, 7. In addition, the rail 3 has a rail foot 8 with side parts 9, 9 '.

During assembly, a system body 15 is fixed in the hoistway 4 in a stationary manner. The contact body 15 may be configured, for example, as a wall mounting plate 15. By the contact body 15, a contact surface 16 is then defined in the elevator shaft 4. The rail 3 is applied with its rail 8 directly or indirectly to the contact surface 16 of the contact body 15. In this embodiment, then lies a bottom 17 of the rail foot 8 on the contact surface 16 of the contact body 15.

The attachment set 2 has in this embodiment a first rail clamp 18 and a second rail clamp 18 '. Furthermore, the attachment set 2 has fastening elements 19, 19 '. The fastening elements 19, 19 'serve to connect the rail clamps 18, 18' to the contact body 15. In this embodiment, the fastening element 19 has a fastening screw 20 with a head 21, a nut 22 and a washer 23. Accordingly, the fastening element 19 'has a fastening screw 20' with a head 21 ', a nut 22' and a washer 23 '.

The rail clamp 18 has a support element 25 and a clamping element 26. The clamping element 26 has a clamping bracket 27. On the clamping bracket 27, a rail 8 facing the contact part 28 is configured, on which in the mounted state, for example, a point or linear contact with a top 29 of the rail foot 8 comes about. As a result, a holding dimension H between the clamping bracket 27, in particular the contact part 28, and determined by the contact body 15 bearing surface 16 is determined, via which the rail 8 of the rail 3 is held by the rail clamp 18. The contact part 28 is considered here as part of the clamp strap 27. However, such a contact part 28 does not necessarily have to be provided. A contact with the upper side 29 of the rail foot 8 can also come about without a contact part 28 formed on the clamping bracket 27.

Depending on the application, the holding dimension H can also take into account one or more intermediate layers, sliding layers, coatings or the like which can be mounted during assembly of the rail 3 or are already provided on the rail foot 8.

The support element 25 has a wedge-shaped part 30, on which a wedge surface 31 is formed. A to the wedge-shaped part 30 of the support member 25 and the wedge surface 31 adapted wedge-shaped part 32 of the clamping member 26 is located with his Wedge surface 33 in the mounted state on the wedge surface 31 of the support member 25 at. The system between the wedge-shaped parts 30, 32 takes place directly in this embodiment. In principle, however, an indirect investment on, for example, an intermediate layer is conceivable.

In a corresponding manner, the rail clamp 18 'comprises a support element 25' and a clamping element 26 '. Further, according to the clamping element 26 'a clamping bracket 27' configured, which has a contact part 28 '. About the contact part 28 'is in this embodiment, a contact of the clamping bracket 27' with a top 29 'of the rail foot 8. This is given in a corresponding manner to the rail clamp 18' a holding dimension H '. The holding dimensions H, H 'may coincide. However, the holding dimensions H, H 'may also differ in the respective application. The rail clamps 18, 18 'allow an individual adjustment of the respective holding dimension H, H' at the respective fastening point.

The rail foot 8 has longitudinal sides 40, 40 '. By the rail clamp 18, a side guide 41 is formed, which is formed on the support member 25 and the clamping element 26. The side guide 41 of the rail clamp 18 is used for the longitudinal side 40 of the rail foot 8 to guide the rail 8 in this regard. Accordingly, a side guide 41 'is formed on the rail clamp 18', which serves for guiding the rail foot 8 on its longitudinal side 40 '. The side guide 41 'is formed on the support member 25' and the clamping element 26 '.

To illustrate the operation of the fastening set 2 with the rail clamps 18, 18 'and the contact body 15, a right-handed coordinate system with the directions X, Y, Z is shown. The directions X, Y are here among others in the Fig. 1 drawn while the direction Z together with the direction Y in the Fig. 6 is drawn.

In the assembled state results on the holding dimensions H, H 'an attachment of the rail 3 with respect to the direction Y. By the side guides 41, 41' of the rail clamps 18, 18 'results in a two-sided leadership, the degrees of freedom in and against the Restricts towards X. The assembly can now be carried out so that there is still a degree of freedom in and against the direction Z, for example, a length compensation in a change in length between the rail 3 and a building 42 (FIG. Fig. 6 ). Here, the rail 3 along its Extension 43 through the elevator shaft 4, so in and against the direction Z, if necessary, move relative to the plant body 15, as it also based on Fig. 6 is described.

Fig. 2 shows a schematic section through the in Fig. 1 shown rail 3 and the attachment set 2 in the designated II section. The clamping element 26 has an upper side 45 which extends from the wedge-shaped part 32 via the clamping bracket 27. Here, the transition from the wedge-shaped part 32 to the clamping bracket 27 in this embodiment without step, ie without a change in height in the direction Y, which is oriented perpendicular to the contact surface 16 of the contact body 15. Furthermore, a receptacle 46 lying in the surface 45 is configured in the wedge-shaped part 32 of the clamping element 26, which serves to receive the head 21 of the fastening element 19. Here, in this embodiment, a partial recording of the head 21 is illustrated, in which the head 21 against the direction Y slightly above the top 45 projects. In a modified embodiment, the head 21 can also be completely sunk in the receptacle 46, so that the head 21 then no longer projects beyond the top 45 against the direction Y. Thus, an embodiment is possible in which an impairment, in particular a collision with other components of the elevator installation 1, is avoided from the outset.

The contact body 15 has a passage opening 47. The passage opening 47 can be designed, for example, in the form of a slot 47 extending along the direction X. In the assembled state, the fastening screw 20 of the fastener 19 extends through the through hole 47 of the contact body 15. Here, the through hole 47 is configured so that for adjusting the formed on the support member 25 and the clamping member 26 of the rail clamp 18 side guide 41 to the longitudinal side 40 of Rail foot 8 a Einstellspiel 48 in the X direction is specified. In a corresponding manner, a setting game against the direction X is given to the rail clamp 18 '.

The direction X is here oriented parallel to the contact surface 16 and perpendicular to the direction Z. The direction Z, which is likewise oriented parallel to the abutment surface 16, is hereby oriented along the extension 43 of the rail foot 8 or the rail 3 through the elevator shaft 4. In this way results in a decoupling of the various loads or forces occurring. Along the Extension of the rail 3 acting forces, which may occur, for example, in a desired length compensation, acting in the direction Z. This results in at least no direct restriction on the holding gauge H or the side guide 41. Indirectly, however, may have some influence on friction forces. In this case, via a rigid embodiment of the clamping element 26, in particular of the clamping bracket 27, and of the support element 25, a corresponding rigid specification of the holding dimension H can be made possible. This in turn allows attachment of the side part 9 of the rail foot 8 with a backlash-free, but in the initial state powerless attachment. Accordingly, the side guide 41 play, but without bias. This results in particular in the interplay with the other rail clamp 18 '.

During operation, executives who, for example, by the guidance of an elevator car 50 (FIG. Fig. 6 ) can then be recorded in an advantageous manner. This is exemplary also on the basis of Fig. 5 explained.

Thus, the attachment set 2 can be used advantageously for mounting the rail 3. In this case, the first rail clamp 18 and the second rail clamp 18 'are connected to the contact body 15 via the fastening elements 19, 19'. Accordingly, the second rail clamp 18 'serves to fasten the rail 3 to its second side part 9' of the rail foot 8. The adjustment of the holding dimensions H, H during assembly takes place 'is also referred to below with reference to the 3 and 4 explained in more detail.

Fig. 3 shows the rail clamp 18 and the fastening screw 20 of the in Fig. 1 shown fastening sets 2 in a three-dimensional exploded view. The wedge surface 31 is formed in this embodiment as a flat and preferably smooth wedge surface 31. Accordingly, the wedge surface 33 of the clamping element 26 is formed as a flat and preferably smooth wedge surface 33. The two wedge surfaces 31, 33 are in this case adapted to each other. The receptacle 46, which is configured on the upper side 45 of the clamping element 26, leaves so much freedom for the head 21 that an adjustment in or against the direction Z of the clamping element 26 relative to the support element 25 is made possible. For this purpose, a passage opening 51 designed in the clamping element 26 is furthermore designed as an elongated hole-shaped through opening 51 oriented in the direction Z. In this embodiment a configured on the support member 25 through hole 52, however, formed as a through hole 52, which allows in particular in and against the direction Z comparatively little game. However, the slot-shaped passage opening 51 is preferably designed so that no or little play in and against the direction X exists.

The wedge surface 31 is inclined with a wedge angle 54 of the wedge-shaped part 30 of the support member 25 relative to the abutment surface 16. The wedge surface 33 is inclined with a wedge angle 55 of the wedge-shaped part 32 of the clamping element 26 relative to the contact surface 16. With respect to the direction Z, the wedge surfaces 31, 33 are inclined relative to each other. The wedge angle 54, 55 are preferably the same size. If the upper side 45 of the clamping element 26 is configured planar, then this is preferably oriented parallel to the contact surface 16.

The setting of the rail clamp 18, which is used in particular for setting the holding gauge H, is below with reference to the Fig. 4 further described.

Fig. 4 shows the in the Fig. 1 to 3 illustrated rail clamp 18 and the fastener 19 of the fastening set 2 from the in Fig. 1 with IV designated viewing direction. The viewing direction denoted by IV here is oriented in the direction Y. Before the fastener 19 is tightened, in this embodiment, the clamping member 26 relative to the support member 25 in and against the direction Z can be adjusted. This adjustment is limited by the configuration of the slot-shaped passage opening 51. In order to reduce the predetermined on the clamping bracket 27 holding dimension H, the clamping element 26 is adjusted in this embodiment opposite to the direction Z in an adjustment 53 relative to the support member 25 and thus the contact body 15, up to the side part 9 of the rail 8 a backlash-free, but preferably powerless attachment over the holding gauge H is achieved. Then, the thus set position of the clamping member 26 is fixed relative to the support member 25 via a tightening of the fastener 19.

In addition, when fixing in the direction X, the side guide 41 can be adjusted, which is also fixed in position when the fastening element 19 is tightened. This results in the advantage that the two setting operations do not affect each other, so are decoupled.

Fig. 5 shows a schematic sectional view of the in Fig. 1 illustrated rail foot 8 to explain executives who may occur during operation. For example, a force F can act on the guide surface 6 of the rail head 5 during operation. In this case, holding forces A, B, C are applied by the fastening set 2, which is arranged stationary in the elevator shaft 4, so that the rail 3 is held stationary in the space. In this case, the force B is applied in particular via the side guide 41 ', which is realized by the support element 25'. The holding force A is at least substantially applied by the clamping bracket 27 of the clamping element 26 of the support member 25 on the holding mass H. The holding force C is applied at least essentially via the support of the rail 3 on the contact surface 16 of the contact body 15.

This results in the advantage that tolerances of the rail foot 8 of the rail 3 via the adjustable rail terminals 18, 18 'can be compensated. If it makes sense in the particular application, then also biasing forces can be applied if necessary. Such biasing forces can be adjusted, for example, via the tightening torques when tightening the fastening elements 19, 19 'and / or via the rigidity of the rail clamps 18, 18'. To adjust the stiffnesses of the rail clamps 18, 18 ', a suitable embodiment of the clamps 27, 27' of the clamping elements 26, 26 'is particularly suitable.

Fig. 6 shows the elevator system 1 in an excerpt, schematic representation, in which the rail 3 is fixed according to the embodiment in the elevator shaft 4. The elevator shaft 4 is bounded by a shaft wall 60 of the building 42. The contact body 15 is in this embodiment part of a mounting structure 61 which is connected in a suitable manner with the shaft wall 60 of the building 42. Furthermore, in the Fig. 6 Yet another system body 15 'is shown, which is part of a mounting structure 62. The attachment structure 62 is also connected to the shaft wall 60. Of the mounting set 2, only the rail clamp 18, the contact body 15 and the fastener 19 are shown for simplicity of illustration. Another attachment set 2 ', which comprises the contact body 15', is shown schematically in a corresponding manner. The rail 3 rests with its underside 17 on both the contact body 15 of the fastening set 2 and on the contact body 15 'of the fastening set 2'. Along its extent 43 through the elevator shaft, the rail 3 can still be connected to the shaft wall 60 by means of a plurality of further fastening sets 2.

The rail 3 can hereby be composed of rail sections, which are joined together during assembly.

The elevator car 50 is suspended via a suspension element 63 in the elevator shaft 4. When driving through the elevator shaft, the elevator car 50 can, for example, via a guide member 64, such as a guide roller or a guide shoe, in the Fig. 5 illustrated force F exert on the rail 3.

If, for example, due to a settlement of the building 42, a relative change in length occurs between the rail 3 and the building 42 along the direction Z, then the rail 3 can effectively be attached to the fastening sets 2, 2 'or to the attachment points along their extension 43 slip. The rail 3 can in this case be supported on a shaft bottom of the elevator shaft 4. As a result, occurring due to high mechanical stresses occurring bending of the rail 3 can be avoided.

The configuration of the fastening sets 2, 2 'and in particular of the fastening elements 19, 19', depending on the design optionally further advantages. At the relevant points a simple coating is possible, so that relevant friction coefficients are well specified. This relates specifically to the clamps 27, 27 'and the contact parts 28, 28' of the clamps 27, 27 '. Furthermore, this relates in particular to the side guides 41, 41 ', which are realized by the fastening elements 19, 19'. Furthermore, this also applies to the contact surface 16 of the contact body 15.

In addition, a safe and easy installation can be made possible. In particular, the adjustment of the holding dimensions H, H 'by an advantageous displacement in or against the direction Z is possible. The direction Z is independent of a setting of the side guides 41, 41 ', which takes place in or against the direction X. Further, the tightening direction Y is decoupled to these two adjustment directions, which allows a simple fixation.

In addition, the rail clamps 18, 18 'can also be made comparatively solid, so that conceivable plastic deformations can be avoided. As a result, in principle, high fastening forces, for example via the fastening elements 19, 19 ', realized. Accordingly, plastic Deformations in operation, for example, on the basis of a Fig. 5 described force F are effected, can be prevented. This relates in particular to the clamps 27, 27 '.

Furthermore, different production methods and materials can be used for producing the fastening elements 19, 19 ', since the support elements 25, 25' and the clamping elements 26, 26 'can be produced in a variety of ways.

Among other things, by the good adjustability can optionally also take place an advantageous replacement of components of an elevator installation 1 by at least parts of the proposed attachment set.

The invention is not limited to the described embodiments.

Claims (14)

Rail clamp (18), which serves for fastening a rail (3) of an extension system (1) on a stationary in an elevator shaft (4) arranged contact body (15) with a clamping element (26) and a support element (25) via a Fastening element (19) on the contact body (15) can be fastened, wherein the clamping element (26) in the mounted state on the support element (25) is supported and being in the assembled state between a clamping bracket (27) of the clamping element (26) and a through the bearing body (15) certain contact surface (16) on which a rail foot (8) of the rail (3) at least indirectly applied, a holding dimension (H) for holding the rail foot (8),
characterized,
in that the support element (25) has a wedge-shaped part (30) on which a wedge surface (31) is formed such that the clamping element (26) has a wedge-shaped part (32) on which a wedge surface (33) is formed Clamping element (26) in the mounted state with its wedge surface (33) at least indirectly abuts the wedge surface (31) of the support element (25), that the clamping element (26) and the support element (25) during assembly for adjusting the holding dimension (H) are adjustable against each other and that the clamping element (26) and the support element (25) in the assembly for adjusting the holding dimension (H) in one along the extension (43) of the assembled state on the contact surface (16) of the contact body (15) Rail foot (8) oriented direction (Z) are mutually adjustable. Rail clamp according to claim 1,
characterized,
that the clamping element (26) rests in the mounted state with its wedge surface (33) directly on the wedge surface (31) of the support element (25). Rail clamp according to claim 2,
characterized,
that a material pairing between the clamping member (26) and the support member (25) at least on the wedge surface is predetermined (33) of the clamping element (26) and at the wedge surface (31) of the support member (25) so that in the assembled state, a sliding of the Clamping element (26) on its wedge surface (33) relative to the wedge surface (31) of the support element (25) is prevented. Rail clamp according to one of claims 1 to 3,
characterized,
that the clamping element (26) on its wedge surface (33) and / or the support element (25) on its wedge surface (31) is configured with surface properties, in particular geometric surface structures, which in the assembled state of an adjustment of the clamping element (26) against the support element (25) counteract. Rail clamp according to one of claims 1 to 4,
characterized,
that the rail foot (8) is formed on the support member (25) and / or on the clamping element (26) has a side guide (41) for a longitudinal side (40) which supports the rail foot (8) in or opposite to a direction (X) which is oriented parallel to the abutment surface (16) of the abutment body (15) and perpendicular to a direction (Z) oriented along the extension (43) of the rail foot (8) resting against the abutment surface (16) of the abutment body (15). Rail clamp according to one of claims 1 to 5,
characterized,
in that at least one contact part (28) is designed on the clamping bracket (27) of the clamping element (26) such that the holding dimension (H) between the contact part (28) and the contact surface (16) of the contact body (15) is determined. Rail clamp according to one of claims 1 to 6,
characterized,
in that the clamping element (26), in particular the clamping bracket (27) of the clamping element (26), is designed such that a high rigidity of the fastening of the rail foot (8) over the holding dimension (H) is realized in the mounted state. Rail clamp according to one of claims 1 to 7,
characterized,
in that the clamping element (26) has an upper side (45) and that the upper side (45) at least without a significant change in height in a direction (Y) oriented perpendicular to the contact surface (16) of the contact body (15) of the clamping bracket (27) the wedge-shaped part (32) of the clamping element (26) passes. Rail clamp according to claim 8,
characterized,
in that the clamping element (26) has a receptacle (46) located in the upper side (45) and serves for receiving a head (21) of the fastening element (19). Mounting set (2) with a contact body (15), at least one fastening element (19, 19 ') and at least one rail clamp (18, 18') formed according to one of claims 1 to 9. Fixing set according to claim 10,
characterized,
in that the attachment body (15) has a passage opening (47) through which the fastening element (19) extends in the assembled state and in that the passage opening (47) for adjusting a to the support element (25) and / or the clamping element (26) Rail clamp (18) formed side guide (41) for a longitudinal side (40) of the rail foot (8) a Einstellspiel (48) in or against a direction (X), parallel to the contact surface (16) of the contact body (15) and perpendicular is oriented towards a direction (Z) oriented along the extension (43) of the rail foot (8) lying against the contact surface (16) of the contact body (15). Mounting set according to claim 10 or 11,
characterized,
in that a first rail clamp (18), a first fastening element (19) for the first rail clamp (18), a second rail clamp (18 ') and a second fastening element (19') are provided for the second rail clamp (18 '), and in that first rail clamp (18) and the second rail clamp (18 ') are arranged on the contact body (15) such that the first rail clamp (18) serves to fasten the rail (3) to a first side part (9) of the rail foot (8) and that the second rail clamp (18 ') serves to fasten the rail (3) to a second side part (9') of the rail foot (8). Fixing set according to claim 12,
characterized,
in that the first rail clamp (18) and the second rail clamp (18 ') are already pre-mounted on the contact body (15) prior to assembly by means of the first fastening element (19) and the second fastening element (19'). Method for fastening a rail (3) of an elevator installation (1) in an elevator shaft (4) by means of at least one fastening set (2, 2 ') according to one of claims 10 to 13, wherein the attachment body (15) of the fastening set (2, 2' ) is arranged stationarily in the elevator shaft (4), a rail foot (8) of the rail (3) being applied at least indirectly to a contact surface (16) determined by the contact body (15), the rail (3) being connected to the at least one Rail clamp (18, 18 ') of the fastening set (2, 2') is attached to the contact body (15) and wherein a in the assembled state between the clamping bracket (27, 27 ') of the clamping element (26, 26') of the rail clamp ( 18, 18 ') and by the contact body (15) certain contact surface (16) resulting holding dimensions (H, H') by a successive adjusting the clamping member (26, 26 ') and the support member (25, 25') of the rail clamp (18, 18 ') is adjusted, wherein the clamping element and the Stützele ment during assembly for adjusting the holding dimension in a along the extension of the fitting in the mounted state on the contact surface of the contact body rail foot oriented towards each other are adjusted.

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