HK40081467A - Rail-fastening system - Google Patents

Description

Rail fixing system

Technical Field

The invention relates to a rail fastening system, a rail system and a method for fastening a rail.

Background

In elevator installations, the elevator car and mostly also the counterweight are displaced vertically along a movement path between different floors or levels within the building. Generally, the elevator car and the counterweight are also referred to as a traveling body. The running body of the elevator installation is usually guided by rails. For this purpose, the rail is fixed to a holding structure along the travel path. Such retaining structures are mostly walls of the elevator shaft. But may also relate to a truss structure, for example. The rail should optimally guide the running body. Optimal guidance is characterized by low-vibration travel of the vehicle body and absorption of forces occurring during operation. Since the holding structure for this purpose usually does not extend vertically with sufficient precision and has an uneven portion, it is advantageous if the rail fastening element can be adapted to the required spacing between the holding structure and the rail. In patent application EP2749518A1, a rail fastening system is shown which can be adapted to the required spacing in a wide range. For this purpose, the rail fixing system is divided into a first and a second clamping member. The second clamp may be secured in two configurations, each configuration allowing for a different range of spacing to be adjusted. The first configuration is changed to the second configuration by turning the second clamp over. However, this rail fixing system has the following disadvantages: during the assembly process, the turning over (i.e. rotation by 180 °) of the second holding element is to be designed at very high cost.

Disclosure of Invention

It is an object of the present invention to provide a rail fixing system which can be installed more easily and quickly.

According to a first aspect of the invention, this object is achieved by a rail fixing system. The rail fixing system is suitable for fixing a rail of a vertically movable carriage of an elevator installation. The rail fixation system includes a first clamp connectable with the retaining structure and a second clamp connectable with the rail. The first clamp has a laterally extending first intermediate portion configured to be connectable with the retaining structure. The second clamp has a laterally extending second intermediate portion configured to be connectable with the rail. The two clamping elements each have a first and a second web, which are mounted laterally on opposite ends of the respective intermediate part. The track mounting system can be assembled in two alternative configurations.

In a first configuration, the first tab of the first clamp is connected with the first tab of the second clamp at the first contact surface, and the second tab of the first clamp is coupled with the second tab of the second clamp at the second contact surface.

Alternatively, in the second configuration, the first tab of the first clip is connected to the second tab of the second clip at the first contact surface, and the second tab of the first clip is connected to the first tab of the second clip at the second contact surface.

A first plane extending substantially parallel through the first contact surface and a second plane extending substantially parallel through the second contact surface intersect at an intersection line, and the intersection line is perpendicular to the planar face extending substantially parallel to the second intermediate portion.

According to a second aspect of the invention, the object is achieved by a rail system for an elevator installation. The rail system comprises a rail fixing system according to the first aspect of the invention and a rail for guiding a running body of the elevator installation.

According to a third aspect of the invention, the object is achieved by a method for fixing a rail of an elevator installation. The method comprises the following steps:

the first clamp of the rail fixing system according to the first aspect of the invention is fixed to the holding structure,

the second clamp of the rail fixing system according to the first aspect of the invention is placed onto the first clamp,

securing the rail to the second clamping member, an

The first clamping member is fixed on the second clamping member.

The possible features and advantages of embodiments of the invention may be considered primarily, but not exclusively, based on the concepts and insights described below.

The holding structure of the lift introduces a structure to which at least some components of the lift are fixed and which extends over at least a part of the travel path of the running body. The retaining structure is mostly constructed in the form of a shaft wall. The retaining structure may also be configured as a truss structure. Such frame structures are typically made of metal. The truss structure may also be arranged, for example, inside the elevator shaft or extend along the facade of the building.

The rail fixing system fixes a rail of a vertically movable traveling body of the elevator apparatus. The rail fixing system thereby determines at least the position of the rail relative to the holding structure, in particular in a horizontal plane in the region of the rail fixing system. Thus, the rail is prevented from being able to move horizontally. The rail securing system may bear a portion of the vertical gravitational force of the rail. Furthermore, the rails are usually placed in the lower part on the shaft bottom or on a suitable column, so that the gravitational force is directed to the greatest extent into the shaft bottom. Since the running body is preferably designed to run vertically, the rail and in particular the direction of extent of the rail are likewise oriented vertically.

The intersection line extends perpendicular to the rail being held on the rail fastening system.

The first and second clamping elements are in contact on the web on two contact surfaces. Usually, the guiding force is transmitted to these contact surfaces by means of a friction lock. The contact surfaces are here substantially flat. The contact surface can have small unevennesses, as can occur, for example, as a result of production. The contact surface may also have surface roughness or grooves, as a result of which a better frictional engagement is achieved. The two planes are defined by respective contact surfaces.

According to a preferred embodiment, the respectively contacting webs lie flat against one another. This advantageously achieves an advantageous production, since the production process can be designed such that a flat surface of the starting material can be maintained.

According to a preferred embodiment, the flat surface (37) is parallel to the rail contact surface (36), and the rail contact surface (36) is designed to serve as a contact surface for a rail base.

The rail is held on the second clamp by one or more rail brackets. Preferably, the rail bracket surrounds the rail base and positions the rail base on the rail contact surface. In this case, a clamping force can be applied to the rail base. Preferably, however, the clamping force should be selected small enough to enable the rail to be moved in the direction of movement.

Preferably, the flat face is oriented parallel to the retaining structure. That is to say, on the one hand, the plane is oriented parallel to the direction of extension of the rail and, on the other hand, the plane forms a right angle with the two lateral guide surfaces of the rail.

According to a preferred embodiment, at least two webs (12, 13) of the first clamping part (10) or two webs (22, 23) of the second clamping part (10) each have a long hole (8), the orientation of which preferably has a directional component in the normal direction relative to a flat surface.

Advantageously, the two webs of the first clamping part each have an elongated hole. The second clamping element can thus be adjusted precisely along these slots to the correct distance from the wall to the rail. The webs of the second holding part can thus be designed shorter than the webs of the first holding part.

According to a preferred embodiment, the second clamping member can be stably placed on the first clamping member.

The second clamping member is thus in a stable position after being placed on the first clamping member, which stable position cannot easily be changed even by small shocks or unintentional contact.

The stability criterion can be understood here in accordance with the definition of the mathematical stability theory. Small movements in the set position, as may be caused, for example, by vibrations or unintentional contact of the second clamping part, are kept small here. In particular the second clamping element falls back into the placed position. In order to bring the second clamp out of the stable position, energy must be consumed. This energy must be applied by actively lifting the second clamp. Without this additional energy, the second clamp would remain in a stable position continuously.

The angle α describes the angle between the tabs and the lateral sides of the respective intermediate portion. The angle α here deviates from an angle of 90 ° positively or negatively, respectively. An advantage of an angle which deviates only slightly from 90 ° is that the second clamping member can be placed very stably. The small angle results in a slight clamping effect. Furthermore, the gripping member must be lifted rather high from a stable position in order to be able to fall into the shaft. An angle deviating considerably from 90 ° has the advantage that the second clamping member can be placed onto the first clamping member with great tolerances. An orientation that is imprecise and therefore capable of being performed quickly is sufficient to place the second gripper onto the first gripper. Furthermore, the second clamping member is not over-clamped to the first clamping member if the angle deviates from 90 ° to a sufficient extent.

A preferred range of angle a deviates from 90 ° by 5 ° to 60 °. That is, it is between 30 ° and 85 ° or between 95 ° and 150 °. This ensures on the one hand that the second clamp is placed securely, whereby the risk of the second clamp moving out of the stable position and falling down is reduced. On the other hand, the clamp remains easily movable, so that the spacing between the wall and the rail can be easily adjusted. Particularly suitable is an angle α which deviates from 90 ° by 10 ° to 30 °. Thus, a particularly suitable range of the angle α is between 60 ° and 80 ° or between 100 ° and 120 °.

According to a preferred embodiment, the second clamp has a recess, which serves in particular to receive a fixing element, and thus to achieve a closer position of the second clamp relative to the holding structure, wherein the fixing element serves to fix the first clamp on the holding structure.

According to a preferred embodiment, the first clamping part has a recess, in particular for receiving the rail carrier, and thus a closer position of the second clamping part at the holding structure is possible.

In particular, the recess of the first clamping member is used for providing a bolt for the rail bracket position by means of the recess receiving the rail bracket.

Advantageously, the recess of the first clamp and the recess in the second clamp serve to enable the intermediate portion of the second clamp to be pushed into close proximity to the intermediate portion of the first clamp, thereby enabling a smaller minimum spacing between the retaining structure and the rail to be adjusted.

Furthermore, the spacing of the second clamping member from the retaining structure may be further reduced by a recess in the retaining structure below the recess of the first clamping member. The minimum spacing between the rail base and the holding structure can be optimally determined only by the material thickness of the two intermediate parts.

According to a preferred embodiment, the first distance between the tabs of the first clamp and the second distance between the tabs of the second clamp are selected such that: when the second clamp is placed on the first clamp, the attachment bolt can be easily introduced into the elongated hole.

By advantageously selecting the two distances, the second clamping part is lowered exactly above or into the first clamping part when it is placed on the first clamping part, so that the respective long hole coincides with the other long hole or circular hole. Thereby, the connecting bolt can be easily introduced.

The first intermediate part and the second intermediate part are preferably also arranged at the same height in the shaft.

According to a preferred embodiment, the first and/or the second clamping part is formed by bending from a metal blank, in particular a metal plate.

According to a preferred embodiment, the metal blank is made by stamping.

The two holding parts are preferably stamped from sheet metal, wherein all fastening holes, slots and contours can be produced in one operation. The tabs are then constructed by bending a portion of the metal sheet. The angle α advantageously deviates here only slightly from 90 °. The blank thus punched out is a substantially straight metal sheet and can be produced with a small amount of scrap.

Since the intermediate part, in particular the second intermediate part, is designed as a plane and the webs are advantageously also designed as planes, the production of the second clamping part can be produced particularly simply by a bending process. The first clamping member is preferably manufactured by the same type of process.

According to a preferred embodiment, the rails of the rail system are aligned in a straight line, and the depth of each individual rail fastening system can be adapted to the distance between the holding structure and the rail, in particular by tilting the second clamping part.

Thus, the depth of the rail fastening system generally represents the spacing between the intermediate portion of the first clamp and the intermediate portion of the second clamp. In this fixing device, in particular by turning over the second clamping part and moving the second clamping part relative to the first clamping part, the spacing can be adjusted in such a way that the locally required spacing between the holding structure and the rail can be adapted.

The rails can thereby be oriented vertically and linearly on the holding structure, the vertical course of which can vary in part.

According to a preferred embodiment, the second holding part has one or more rail brackets for fastening the rail to the second holding part.

Preferably, the rail bracket is already preassembled on the second clamping member. The rail carrier can be preassembled on the second holding part in two ways. Preferably, some of the second clamping members are prepared for the first configuration and others are prepared for the second configuration. The second clamping part prepared in this way differs in the orientation in which the rail carrier is preassembled on the second clamping part. During assembly, the assembler can use the second clamping elements of the rail brackets, respectively, as needed, in the correct orientation.

The rail bracket is preferably mounted movably along the second intermediate portion, so that the rail can be moved along the flat face and thereby aligned without the rail bracket yet being fixed. The rail carrier can then be fixed, in which the at least one bolt of the rail carrier is preferably tightened. That is, by moving the second clamp relative to the first clamp in a direction perpendicular to the flat surface, the local position of the rail in the first horizontal direction can be adjusted. In the second horizontal direction, the local position of the rail may be adjusted by moving the rail holder along the lateral direction of the second clamp.

The method for fixing the rails of an elevator installation has the advantage that it enables a simple and fast installation. First, only the first clamping member is fixed to the holding structure. It is common to first drill holes, for example in the wall of a shaft, and then these holes are provided with anchoring pins. The first clamping member can then simply be fixed to the anchoring pin, for example with a nut. Thus, a first advantage is that the first clamp can be conveniently held with one hand while the second hand is bolted.

The second clamp can then simply be placed onto the first clamp. By means of a special shaping, the second clamping element is simply held on the first clamping element. The second clamp is stably placed on the first clamp and allows the assembler to release the second clamp. Thus, both hands of the fitter may be used for other work, such as mounting and aligning rails, or introducing connecting bolts.

Now, the rail element forming part of the rail at this position can be positioned. The rail element may mount and connect the rail piece to a portion of the rail that has been previously mounted. The fitter can then orient the rail piece such that it, together with the previously installed part of the rail, produces a rail extending in a straight line. Once the rail piece is correctly positioned and the rail is oriented linearly and preferably vertically, the second clamping piece can preferably be fixed only loosely on the rail first with the rail fixing device. In addition, the second holding parts can be lifted off from the first holding parts in order to fix the rail base more easily.

Subsequently, the second clamp is placed on the first clamp again. Due to the special shaping, the second clamping part is placed on the first clamping part in such an orientation that the fitter can easily fit the connecting bolt for connecting the two clamping parts, since the fastening hole and the elongated hole of the web are aligned with one another. The spacing of the rail from the wall can be adjusted prior to tightening the bolt.

According to a preferred embodiment, the method for fixing a rail further comprises selecting the first or second configuration by: the second clamping member is placed on the first clamping member by either being in a first orientation or in a second orientation rotated 180 ° relative to the first orientation.

Preferably, for this purpose, the second clamping member is rotated by 180 ° about a vertical axis relative to the first clamping member. Thereby, the middle portion of the second clamp is horizontally oriented in both orientations. The rail brackets fixed to the second clamping part are therefore each oriented in such a way that they can optimally grip the rail base of the rail.

It is therefore also advantageous if the two webs of the second clamping part and preferably also the two webs of the first clamping part have the same angle α with respect to the lateral direction of the central part.

According to a preferred embodiment, the method for fixing a rail further comprises: the second clamping member is moved perpendicularly with respect to the flat face.

The rail can therefore be simply moved in two directions perpendicular to the direction of extension and thus vertically oriented. As mentioned above, the rail bracket may be mounted in such a way as to be movable along the second intermediate portion. The movement and thus the vertical alignment in the second direction, which is preferably perpendicular to the first direction, is achieved by a movement perpendicular to the flat surface. This movement is preferably effected by means of a long hole.

Drawings

Further advantages, features and details of the invention emerge from the following description of an exemplary embodiment and from the drawings, in which identical or functionally identical elements are provided with the same reference symbols. The figures are purely diagrammatic and not drawn to scale.

Wherein:

FIG. 1 shows a first clamp of a rail fastening system;

FIG. 2 illustrates a second clamp of the track fixing system;

FIG. 3 illustrates the track fixing system in a first configuration;

FIG. 4 illustrates the track fastening system in a second configuration;

FIG. 5 shows a first plane and a second plane;

FIG. 6 illustrates an adjustment scheme for the spacing between the retaining structure and the track;

figure 7 shows three rail fastening systems that hold one rail to the holding structure.

Detailed Description

Fig. 1 shows a first clamping part 10 of a rail fastening system in a view from the front and in a view from above. The first central section 11 is significantly longer in the lateral direction 101 than in the width direction 102. The intermediate portion 11 of the first clamp 10 has a wall fixing hole 14 and a recess 15. The wall fixing holes 14 are used to fix the first intermediate portion 11 of the first clamping member 10 to the holding structure. For this purpose, retaining bolts and nuts, which are not shown in all the figures, are advantageously used.

The first tab 12 and the second tab 13 of the first clamp 10 are located on both ends of the first intermediate portion 11. The two webs 12, 13 each have an elongated hole 8. The first intermediate part 11 and the two webs 12, 13 are bent from a metal sheet. These two curved edges extend at an angle alpha of 100 deg. with respect to the lateral direction 101 of the first intermediate portion 11.

Fig. 2 shows a second clamping part 20 of the rail fastening system, which cooperates with the first clamping part 10 from fig. 1. These views are chosen to be the same as in fig. 1. The second intermediate section 21 is likewise designed to be significantly longer in the lateral direction 101 than in the width direction 102. The length of the second intermediate portion 21 is here substantially equal to the length of the first intermediate portion 11. The length of the second intermediate portion 21 deviates only by about two plate thicknesses from the length of the first intermediate portion 11. The middle part of the second clamping part 21 has an opening for a rail bracket 24, where the rail bracket is fixed to the second clamping part 20.

On the second intermediate portion 21, the first and second tabs 22, 23 are also located on the ends thereof. The two webs 22, 23 each have a circular opening 9. The space required for the circular hole 9 is smaller than for the elongated hole 8, so that the webs 22, 23 of the second clamping part 20 can be designed shorter than the webs 12, 13 of the first clamping part 10.

Fig. 3 and 4 show a first and a second configuration, in which the two clamping members of fig. 1 and 2 can be combined into one rail fixing system. The top view is shown above and the front view is shown below. The rail 2 and the rail fastening device 3 are also shown in a top view, while the front view shows only the rail fastening device 3. Furthermore, these figures show how the first clamping element 10 rests with its intermediate part 11 on the holding structure 4. The first clamp 10 can be fixed on the holding structure 4 via the wall fixing hole 14.

The webs 12, 13 of the first clamping part 10 are connected to the webs 22, 23 of the second clamping part 20 by means of the bolts 5. Here, the bolts 5 pass through the long holes 8 and the round holes 9, respectively. In fig. 3, the first tab 12 of the first clamp 10 is connected to the first tab 22 of the second clamp 20. For the second configuration in fig. 4, the second clamp is turned through 180 ° about a vertical axis, i.e. parallel to the course of the rail 2. As a result, the second web 23 of the second holding part 20 is now located on the first web 12 of the first holding part 10. The orientation can be selected when placing the second clamp 20 onto the first clamp 10 and is related to the size of the spacing s between the holding structure 4 and the rail 2 locally.

Fig. 3 shows the rail fastening system 1 with the maximum adjustable spacing s. The threaded connection 5 is here in the outermost possible position of the elongated hole 8. In this configuration, these recesses 15 remain exposed. Fig. 4 shows the rail fastening system 1 with the smallest adjustable spacing s. The minimum spacing s is defined by the rail mount 3 used and in particular the bolts of the rail mount 3. The recesses 15 allow the spacing s to be smaller by a plate thickness than without the recesses 15. The recess 15 can continue as a recess (not shown) in the holding structure 4 and thereby also further reduce the minimum spacing s.

Fig. 5 shows a first plane 33 and a second plane 34, as they are defined by the contact surfaces 31, 32 of the webs 12, 13, 22, 23. The tabs 12, 13, 22, 23 are flat sheet metal parts and therefore the likewise flat contact surfaces of the tabs define respective planes. Here, the first plane 33 and the second plane 34 intersect at an intersection line 35. A planar face 37 is defined by the rail contact face 36. The rail contact surface is configured on the middle portion 21 of the second clamping member 20. The rail 2 and in particular the rail base of the rail 2 rest against this flat rail contact surface 36. The flat face 37 is therefore parallel to the rail 2, and since the rail is preferably vertically oriented, the flat face 37 is preferably also vertically oriented.

Fig. 6 shows a projection in the direction of the intersecting axis between the first plane and the flat face 37. Fig. 5a shows the minimum adjustable spacing s1. By displacing the second clamping member 20 along the elongated hole relative to the first clamping member 10, an intermediate distance s2 can be adjusted, which is at least as large as the minimum distance s3 in the second configuration, in which the second clamping member 20 is rotated through 180 °. By moving along the elongated holes, the spacing of the rail fixing system 1 can be adjusted up to a maximum spacing s4.

Fig. 7 shows the holding structure 4 in an off-vertical orientation. The schematic and idealized views of the hierarchy make it possible to clearly show the change in position of the holding structure, but do not necessarily correspond to the situation in an elevator installation. Alternative holding structures 4 may also comprise uneven surfaces, such as for example those due to tolerances during construction. The metallic holding structure or the truss structure can have individual surfaces which have a locally different distance from the theoretical position of the rail and can therefore correspond to the stages of fig. 7.

Fig. 7 shows two embodiment variants of the rail fastening system 1. The two rail fastening systems 1 above correspond to the embodiments already shown in fig. 1 to 4. In the assembled state, the webs 22, 23 of the second clamping part 20 are located between the webs 12, 13 of the first clamping part 10. The angle α shown here deviates from the vertical by 135 °, i.e. by 45 °. In the first embodiment, the angle α is at least as large as the second clamp 20 can be placed on the first clamp 10.

The upper rail fastening system of the three rail fastening systems 1 shows the wide configuration of the first embodiment, i.e. a configuration which is suitable for a large spacing between the holding structure 4 and the rail 2. In this configuration, the pitch can be adjusted by the relative movement of the first clamp 10 and the second clamp 20 along the long hole so that the rail extends linearly. The middle rail fastening system in the rail fastening system 1 shows a configuration of the first embodiment which is suitable for shorter distances and is obtained by turning over the second clamping part 20. In this case, the spacing can also be adapted similarly to the first configuration.

The lower of the three rail fastening systems 1 shows an alternative embodiment in which the webs 22, 23 of the second clamping part 20 contact the webs 12, 13 of the first clamping part 10 from the outside. The angle α is now 45 °, i.e. again deviates from the vertical 102 by 45 °. This angle is now offset from the vertical line 102 in the other direction, whereby the second clamping member 20 is placed again on the first clamping member 20. By turning over the second clamping member, a configuration suitable for shorter spacings can again be obtained. Unlike the illustrated example, the first and second embodiments are not commonly used in the same elevator. By using only one single embodiment in the elevator installation it can be ensured that: each first clamp may be combined with each second clamp.

Finally it is pointed out that expressions such as "having", "comprising", etc. do not exclude other elements or steps, and that expressions such as "a" or "an" do not exclude a plurality. Furthermore, it should be pointed out that characteristics or steps which have been described with reference to one of the above embodiments can also be used in combination with other characteristics or steps of other embodiments described above. Reference signs in the claims shall not be construed as limiting.

Claims (15)

1. A rail-fastening system (1) for fastening a rail (2) of a vertically movable carriage of an elevator installation,

the rail fastening system (1) has a first clamping part (10) that can be connected to the holding structure (4) and a second clamping part (20) that can be connected to the rail (2),

wherein the first clamping part (10) has a first intermediate section (11) extending in the lateral direction, which is designed to be connectable with the holding structure (4), and the second clamping part (20) has a second intermediate section (21) extending in the lateral direction, which is designed to be connectable with the rail (2),

the two clamps have a first and a second tab (12, 13, 22, 23) respectively, mounted laterally on opposite ends of the respective intermediate portion (11, 21), and the rail fixing system can be assembled in two alternative configurations,

in a first configuration, the first web (12) of the first clamping part (10) is connected to the first web (22) of the second clamping part (20) at a first contact surface (31), and the second web (13) of the first clamping part (10) is connected to the second web (23) of the second clamping part (20) at a second contact surface (32), and

alternatively, in the second configuration, the first web (12) of the first clamp (10) is connected to the second web (23) of the second clamp (20) at a first contact surface (31), and the second web (13) of the first clamp (10) is connected to the first web (22) of the second clamp (20) at a second contact surface (32),

characterized in that a first plane (33) extending substantially parallel through the first contact surface (31) and a second plane (34) extending substantially parallel through the second contact surface intersect at an intersection line (35), and that the intersection line (35) is perpendicular to a planar face (37) extending substantially parallel to the second intermediate portion (21).

2. The rail fastening system (1) according to claim 1, characterized in that the respectively contacting webs (12, 13, 22, 23) lie flat against one another.

3. The rail fixing system (1) according to claim 1 or 2, characterized in that the flat face (37) is parallel to the rail contact face (36) and the rail contact face (36) is designed to serve as a contact face for a rail base.

4. The rail fastening system (1) according to claim 3, characterized in that at least two webs (12, 13) of the first clamping element (10) or two webs (22, 23) of the second clamping element (10) each have an elongated hole (8), the orientation of which preferably has a direction component in the normal direction with respect to the flat surface (37).

5. The rail fixing system (1) according to one of the claims 1 to 4, characterized in that the second clamp (20) can be placed stably on the first clamp (10).

6. Rail fixation system as claimed in one of the claims 1 to 5, characterized in that the second clamp (20) has a recess (24), in particular for receiving a fixing element for fixing the first clamp (10) on the holding structure (4), and thereby achieving a closer position of the second clamp (20) relative to the holding structure (4).

7. The rail fixing system according to one of claims 1 to 6, characterized in that the first clamping piece (10) has a recess, in particular for receiving the rail bracket (3), and thereby a closer position of the second clamping piece at the holding structure is possible.

8. The rail fixing system (1) according to one of claims 1 to 7, characterized in that a first spacing between the webs (12, 13) of the first clamping part (10) and a second spacing between the webs (22, 23) of the second clamping part (20) are selected in the following manner: so that the connecting bolt (5) can be easily introduced into the elongated hole in the case of placing the second clamping member (20) onto the first clamping member (10).

9. The rail fixing system (1) according to one of claims 1 to 8, characterized in that the first clamping piece (10) and/or the second clamping piece (20) is/are formed by bending from a metal blank, in particular a piece of metal sheet.

10. Rail fixing system (1) according to claim 8, characterized in that the metal blank is made by stamping.

11. A rail system (40) for an elevator installation, comprising a rail fixing system (1) according to one of claims 1 to 10 and a rail (2) for guiding a running body of an elevator installation.

12. The rail system (40) according to claim 11, characterized in that the rails follow a straight line orientation and the depth(s) of each individual rail fixing system (1) can be adapted to the spacing(s) between the holding structure (4) and the rail (2), in particular by turning over the second clamping piece (20).

13. Rail system according to claim 11 or 12, characterized in that the second clamp (20) has a rail bracket (3) for fixing the rail (2) on the second clamp (20).

14. A method for securing a rail of an elevator installation, the method comprising the steps of:

-fixing a first clamp (10) according to any one of claims 1 to 10 on a holding structure (4),

placing a second clamp (20) according to any one of claims 1 to 10 onto the first clamp (10),

fixing the rail (2) on a second clamping part (20), and

the first clamping member (10) is fixed to the second clamping member (20).

15. The method for securing a track according to claim 14, further comprising:

selecting the first or second configuration by: placing a second clamping member (20) onto the first clamping member (10) in a first orientation or in an orientation rotated 180 DEG relative to the first orientation, and

the second clamping member is moved vertically relative to the flat surface.