WO2016198339A1

WO2016198339A1 - Fastening device for rails

Info

Publication number: WO2016198339A1
Application number: PCT/EP2016/062682
Authority: WO
Inventors: Holger Zerelles; Petros Burutjis
Original assignee: Thyssenkrupp Aufzugswerke Gmbh; Thyssenkrupp Ag
Priority date: 2015-06-09
Filing date: 2016-06-03
Publication date: 2016-12-15
Also published as: DE102015210538A1

Abstract

Fastening device (100, 200) for fastening a rail (300) to a foundation (310), comprising a first bearing body (110, 210), a second bearing body (120, 220) and a clamping device (130, 230), wherein the first bearing body (110, 210) and the second bearing body (120, 220) bear against one another and are intended to be arranged between the foundation (310) and the rail (300), wherein the clamping device (130, 230) is arranged in such a way that the rail (300) can be pressed against the second bearing body (120, 220) by means of the clamping device (130, 230), wherein the fastening device (100, 200) can be fastened to the foundation (310) by fastening means (140, 240), and wherein the first bearing body (110, 210) and the second bearing body (120, 220) have curvatures (111, 121, 211, 221) at mutually bearing regions and are displaceable with respect to one another.

Description

Fastening device for rails

description

The present invention relates to a fastening device for fastening a rail to a substrate and to a use of one or more such fastening devices.

State of the art

For fastening rails to a substrate, fastening devices such as, for example, clamps can be used. An example of this is the attachment of guide rails in a lift shaft.

It should be noted, for example, that for long rails due to the thermal expansion a certain displaceability should be given in the longitudinal direction of the rails, but in the lateral direction no shift is desired. For this purpose, for example, from EP 0 763 494 AI a slide clamp known.

Furthermore, especially with long rails and thus a long ground, the problem is that the ground is often not even, while the rail should be as straight as possible. In connection with the longitudinal expansion of the rails, this can lead to problems such as, for example, a jamming of the rail in the fastening device.

It is therefore desirable to provide a way to optimally secure rails on uneven or not parallel to the track surface. Disclosure of the invention

According to the invention, a fastening device and a use of such with the features of the independent claims are proposed. Advantageous embodiments are the subject of the dependent claims and the following description.

A fastening device according to the invention serves to fasten a rail to a substrate and has a first support body, a second support body and a clamping device. In this case, the first support body and the second support body abut each other and are intended to be arranged between the substrate and the rail. The clamping device is arranged such that by means of the clamping device, the rail against the second support body can be pressed, wherein the fastening device can be fastened by fastening means to the substrate. The first support body and the second support body have curvatures on adjoining regions and are displaceable relative to one another. In this way, a simple attachment of a rail to a substrate can be done. While the rail is pressed by the clamping device, for example. With a desired pressing force to the second support body, the entire fastening device, ie in particular with the first and second support body can be attached to the substrate. As a fastener comes here, for example, a screw into consideration, which, however, does not necessarily have to be part of the fastening device and, for example, can also be provided separately. By means of the support bodies which can be displaced relative to one another along a curvature, a possible unevenness in the substrate can be compensated by the fastening device, since an angular offset can be generated by the displacement between the support surfaces of the first support body on the substrate and the second support body on the rail. This angular offset can be easily adjusted, for example, in the attachment of the fastening device according to the present circumstances. In this way it is ensured that the surface of the second support body, which bears against the rail, evenly applied and is not distorted. A possible canting with a slight longitudinal displacement of the rail, for example. Due to a change in length is thus easily and effectively avoided.

The first support body and the second support body are preferably displaceable relative to one another in such a way that a resulting relative movement only corresponds in one spatial direction to a rotation about a virtual rotation axis. In this way, it can be ensured that a compensation between rail and ground by means of an angular offset occurs only in one direction, while in other directions no angular offset is allowed. Advantageously, the virtual axis of rotation runs with attached fastening device perpendicular to a longitudinal direction of the rail and / or parallel to a support surface, with which the rail rests against the second support body. In this way, it can be achieved that a compensation between the rail and the substrate takes place only along the longitudinal direction of the rail, while with respect to the other directions no angular offset is possible. For example. can be achieved so that when a to be fastened to a wall in a hoistway guide rail, which is often present as a T-rail, a projecting into the elevator shaft leg of the rail is perpendicular to the wall. For this purpose, it should be noted that unevennesses on the ground in the said case usually occur only in the longitudinal direction of the rail. In the transverse direction, however, are usually mounted between the wall and the rail transverse slats or the like, whereby such bumps can be compensated. In the longitudinal direction, however, this is usually not possible. It is advantageous if the areas with curvatures as parts of lateral surfaces of cylinders and / or cones with the virtual axis of rotation as common Are formed axis of rotation and / or if the areas with curvatures have concentric surfaces. In the simplest case, the abutting surfaces are thus parts of a cylinder jacket. This is easy to manufacture and allows a secure bearing surface. However, it is also conceivable that the adjoining areas are not continuous surfaces, for example, to save material. Likewise, for example, a toothing is conceivable, whereby simultaneous displacement along the axis of rotation is prevented.

Preferably, the rail can be pressed by means of the clamping device with a desired or predetermined force against the second support body. In this way it can be achieved that the rail is just so firmly attached to the second support body and thus to the substrate, that a slight displacement against the second support body or the clamping device in the longitudinal direction of the rail, as in the case of a linear expansion is desired, possible borrowed. Such a force can, for example, be adjusted by an adjustable screw during assembly. However, the force can, for example, be generated by a spring mechanism with a predetermined clamping force.

Advantageously, the fastening device has a stop region with which the rail can be brought laterally into abutment. This can be achieved that the rail when it is attached to the ground, for example, laterally by means of two fastening devices, one from each side, are no longer moved in a lateral direction. A shift in the longitudinal direction, however, is still possible.

It is advantageous if the first support body and the second support body are positively connected with each other. For this purpose, for example, a Verhakung be provided. In this way, the two support body, for example, can not fall apart during assembly. In addition, easier handling is achieved. However, the displaceability of the two support body against each other in the desired direction remains. Preferably, the clamping device has a clamping plate and adjusting means, wherein the rail is pressed by means of the clamping plate against the second support body, and wherein the clamping plate is pressed by means of the adjusting means against the rail. In particular, the clamping plate is also secured by means of the adjusting means on the second support body. The adjusting means may be formed, for example, as a screw, by means of which the clamping plate on an increase of the second support body, which may serve as a stop for the rail, for example, be attached. The clamping plate can then project beyond the elevation, so that the rail can be clamped between the projecting part of the clamping plate and a support region on the second support body. To effectively exert a force on the rail, for example, the increase may be slightly lower than the rail. In this way, a compact design of the fastening device is possible. Likewise, for example, but also the clamping plate on the rail end facing downwards may be bent in the direction.

It is advantageous if a clamping force, which can be exerted on the rail by means of the clamping plate, is adjustable by means of the adjusting means. This allows a particularly accurate, simple and stable attachment of the rail to the fastening device.

It is also advantageous if the adjusting means are adjustably mounted on the second support body, so that the rail between the clamping plate and the second support body is clamped. This type of positioning of the adjusting means offers a particularly simple construction.

Advantageously, the fastening device can be fastened to the substrate by attachment means acting on the second support body. The fastening means may comprise, for example, a screw which can be guided through a hole in the second support body, so that the fastening device on Substrate is screwed. The hole may in particular be formed as a slot, so that an angular offset between the second support body and the substrate on which the first support body is applied, can be accommodated.

Preferably, an intermediate element is arranged between the fastening means and the second support body via which the fastening means can engage the second support body. The intermediate element may, for example, be a washer. In this way, a simple power transmission between the fastening means and the second support body is possible.

It is advantageous if the second support body has a recess, in particular a slot, through which the fastening means are guided, wherein a surface surrounding the recess and pointing to the intermediate element is curved. For a simple adjustment of a support angle between the fastening device and the substrate is possible.

Alternatively, the clamping plate is preferably fastened by means of the fastening means to the first support body. In particular, the fastening device can also be fastened to the substrate by attachment means acting on the first support body. For this purpose, the fastening means may, for example, comprise a screw which is guided through a hole in the clamping plate and subsequently through a hole in the first support body. From the head through the clamping plate to the first support body, for example, a thickening of the screw can be provided so that a certain spacing of the clamping plate from the first support body is achieved. This spacing should cover approximately the thickness of the second support body and the rail (or the region of the rail to be clamped). Now, if, for example, the screw has a conically shaped head, the clamping plate can be moved according to the angular offset and pressed onto the rail. For this purpose, for example, another screw as Be provided adjustment means with which the clamping plate can be clamped against the first support body.

A use according to the invention of one or more fastening devices according to the invention serves for fastening a rail to a substrate. In such a background may, for example, be a wall bracket.

A further use according to the invention of one or more fastening devices according to the invention serves to fasten a rail formed as a guide rail for an elevator car to a base designed as a support device in an elevator shaft, wherein the support device is fastened in particular to a wall of the elevator shaft. Here, too, the substrate may, for example, be a wall bracket and the support device may, for example, be a metal construction, in particular a steel construction, to which the rail is to be fastened by means of the fastening devices and the wall bracket.

Concerning. the advantages of these uses, reference is made to the above statements to avoid repetition.

Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination indicated, but also in other combinations or in isolation, without departing from the scope of the present invention.

The invention is illustrated schematically with reference to an embodiment in the drawing and will be described below with reference to the drawing. figure description

FIG. 1 a shows schematically and in cross section a device according to the invention

Fastening devices in a preferred embodiment, attached to a substrate rail.

FIG. 1b shows schematically and in cross-section a device according to the invention

Fasteners in a preferred embodiment on a substrate mounted on a wall rail.

Figure 2 shows in perspective a fastening device according to the invention in a preferred embodiment. Figure 3 shows in perspective a fastening device according to the invention in a further preferred embodiment.

FIG. 1 shows schematically and in cross section a rail 300 fastened to a substrate 310 by means of two fastening devices 100 according to the invention in a preferred embodiment.

The rail 300 is designed as a T-rail, which is fastened to the substrate with one foot area in each case by means of one of the two fastening devices 100. For example, while the rail 300 may be used as a guide rail in an elevator shaft for guiding an elevator car, the base 310 may be a wall bracket, which in turn may be attached to a wall in the elevator shaft.

It will be appreciated that for proper attachment of a long rail, a plurality of fasteners may be used at a suitable distance along the longitudinal direction of the rail. The fastening device 100 shown in FIG. 1 a has a first support body 110 and a second support body 120. The two support bodies 110 and 120 abut one another and are arranged between the base 310 and the rail 300. By means of a clamping device 130, the rail 300 can be pressed against the second support body 120.

The fastening device 100 can furthermore be fastened to the substrate by means of fastening means 140 designed as a screw, which act on the second support body 120. For a more detailed description of the fastening device 100, reference is made to FIG. 2 at this point.

FIG. 1b schematically shows a rail 300 fastened to a wall 400 by means of fastening devices 100 according to the invention in a preferred embodiment via bases 310 designed as wall brackets. The wall may, for example, be a wall in an elevator shaft. The illustration shown here shows a longitudinal section.

FIG. 2 shows a perspective view of a fastening device 100 according to the invention in a preferred embodiment. It can be seen here that the first support body 110 and the second support body 120 have curvatures 111 and 121, respectively, at the regions where they abut one another. The curvature 111 is a convex curvature and the curvature 121 is a concave curvature. These curvatures make it possible for the two support bodies 110 and 120 to be displaced relative to one another in such a way that a rotation-like movement results.

This means that the surfaces of the support bodies which are respectively opposite the curvatures, ie the surface with which the first support body 110 rests against the substrate and the surface with which the second support body 120 bears against the rail, are adjustable in their angle to one another. This can tion of the rail on the ground, an angular offset between the rail and ground. With respect to their opposite surfaces are compensated.

Thus, if the two support bodies have only a low friction, which can be achieved, for example, by suitable materials, adjust the required angular displacement in the fastening device 100 when mounting according to the angular offset between the opposing surfaces of rail and substrate by itself. The rail can then be pressed by means of the clamping device 130 against the second support body 120. In this case, the rail can be pushed laterally into the fastening device 100 up to a stop 150 or the fastening device 100 can be pushed up to the stop 150 on the rail. The stop is presently formed by an increase of the second support body 120. By means of the stopper 150, for example, when two fastening devices are used on two sides of the rail, as can be seen in FIG. 1, the rail is prevented from moving in the lateral direction.

The clamping device 130 has a clamping plate 131, which is attached to the second support body 120 by means of adjustment means 132 designed as a screw. The clamping plate 132 can be, for example, a thick, stable sheet which, on the side facing the rail, is bent downwards in the direction of the ground. By fastening the screw 132, the rail can thus be pressed against the second support body 120 with a desired force. The force can be chosen so that a movement of the rail in the longitudinal direction, at least in large force such as, for example, in a thermal expansion, is still possible.

Furthermore, the second support body has a recess 171 designed as a slot, through which the screw 140, here with an intermediate element 170, for fastening the fastening device 100 to the substrate can be. A slot is useful here to account for the angular offset between the first support body 110 resting against the ground and the second support body 120, to which the screw 140 acts. In addition, the angular offset can be easily adjusted if, in addition, the surface surrounding the recess 171 and pointing towards the intermediate element 170 is curved.

The first support body 110 may, for example, be provided separately from the second support body 110 and only be set to the correct location when mounting a rail. However, a positive connection between the two support bodies 110 and 120 may be provided to connect both together. Furthermore, the first support body 110 may, for example, also have a slot through which the screw 140 is guided. Thus, an effective force transmission in the attachment of the fastening device 100 can be achieved on the ground, since the force is transmitted from the screw on the second support body 120 and the first support body 110 to the ground.

FIG. 3 shows a perspective view of a fastening device 200 according to the invention in a further preferred embodiment. The fastening device 200 also has a first support body 210 and a second support body 220, which have curvatures 211 and 221, respectively, at the regions against which they abut one another. The curvature 211 is a convex curvature and the curvature 221 is a concave curvature. These curvatures make it possible for the two support bodies 210 and 220 to be displaced relative to one another in such a way that a rotational movement arises.

This means that the surfaces of the support bodies which respectively lie opposite the curvatures, ie the surface with which the first support body 210 rests against the substrate and the surface with which the second support body 220 bears against the rail, are adjustable in their angle to one another. This can tion of the rail on the ground an angular offset between the rail and ground. With respect to their opposite surfaces to be compensated.

Thus, if the two support body have only a low friction, which, for example, can be achieved by suitable materials, adjust the required angular offset in the attachment device 200 in the attachment of themselves.

The rail can then be pressed against the second support body 220 by means of the clamping device 130. In this case, the rail can be inserted laterally into the fastening device 200 up to a stop 250 or the fastening device 200 can be pushed up to the stop 250 on the rail. In the present case, the stop is formed by spacing means 260 formed as a tube.

The clamping device 230 has a clamping plate 231, which is fastened by means of the screw 240 via the spacer means 260 on the first support body 210 at a distance. The head of the screw 240 has, for example, a conical or curved shape, so that the clamping plate 231, whose hole through which the screw 240 is guided, also has a corresponding, for example, conical or correspondingly curved shape to the head of the screw 240th is rotatable. In this way, for example, a kind of ball joint between the head of the screw 240 and the clamping plate 231 and the corresponding hole in the clamping plate 231 are formed. This makes it possible that the clamping plate 231 can be brought parallel to the clamping plate 231 facing surface of the second support body 220. Thus, the rail can be optimally clamped between the second support body 220 and the clamping plate 231.

However, it is also conceivable that, for example, a small gap is provided between the head of the screw 240 and the insides of the hole in the clamping plate 231, so that the clamping plate 231 is attached to the rail, which is connected to the second support. Position body 220 is applied, can adjust. It is then important to ensure that the head of the screw 240 has at its upper end a larger diameter than the hole so that the clamping plate 231 can be fixed by means of the screw 240. The clamping plate 232 may, for example, be a thick, stable sheet.

Furthermore, designed as a screw adjusting 232 are provided. The screw 132 engages both on the clamping plate 231 and on the first support body 210. By a suitable shape of the screw 232 can be achieved that by turning the screw 232, the clamping plate 231 on the side of

Screw 232 is pushed away from the first support body 210. Thereby, the clamping plate 231, which rotates about the head of the screw 240, pressed against the rail, which can thus be pressed with a desired force to the second support body 220.

In the present case, the second support body 220 is fastened to the support body 220 by means of positive locking. For this purpose, the second support body 220 has an elongated recess in which, for example, a pin or hook, which is arranged on the first support body 210, can be guided. However, the second support body is still displaceable against the first support body 210. An attachment of the fastening device 200 and thus the rail on the ground by the screw 240, which acts by means of the spacer means 260 on the first support body. It is understood that the fastening device 200 as well as the fastening device 100 can be used for fastening a rail to a substrate, as shown in FIG.

Claims

claims

A fastening device (100, 200) for fastening a rail (300) to a substrate (310), comprising a first support body (110, 210), a second support body (120, 220) and a clamping device (130, 230),

wherein the first support body (110, 210) and the second support body (120, 220) abut each other and are intended to be arranged between the substrate (310) and the rail (300),

wherein the clamping device (130, 230) is arranged such that by means of the clamping device (130, 230) the rail (300) can be pressed against the second support body (120, 220),

wherein the fastening device (100, 200) by fastening means

(140, 240) is attachable to the substrate (310), and

wherein the first support body (110, 210) and the second support body (120, 220) at adjacent areas curvatures (111, 121, 211, 221) and are mutually displaceable.

2. Fastening device (100, 200) according to claim 1, wherein the first support body (110, 210) and the second support body (120, 220) are displaceable against each other such that a resulting relative movement only in a spatial direction of a rotation about a virtual axis of rotation equivalent.

3. Fastening device (100, 200) according to claim 2, wherein the virtual rotation axis with attached fastening device perpendicular to a longitudinal direction of the rail (300) and / or parallel to a support surface, with which the rail (300) on the second support body (120, 220 ) is applied, runs.

4. Fastening device (100, 200) according to claim 2 or 3, wherein the areas with curvatures are formed as parts of lateral surfaces of cylinders and / or cones with the virtual axis of rotation as a common axis of rotation, and / or wherein the areas with curvatures on concentric surfaces - point.

5. Fastening device (100, 200) according to any one of the preceding claims, wherein the rail (300) by means of the clamping device (130, 230) with a desired or predetermined force against the second support body (120, 220) can be pressed.

6. Fastening device (100, 200) according to any one of the preceding claims, wherein the fastening device (100, 200) has a stop region (150, 250), with which the rail (300) can be brought laterally in abutment.

7. Fastening device (100, 200) according to any one of the preceding claims, wherein the first support body (210) and the second support body (220) are positively connected with each other.

8. Fastening device (100, 200) according to one of the preceding claims, wherein the clamping device (130, 230) has a clamping plate (131, 231) and adjusting means (132, 232), wherein the rail (300) by means of the clamping plate (131, 231) against the second support body (120, 220) can be pressed, and wherein the clamping plate (131, 231) by means of the adjusting means (132, 232) against the rail (300) can be pressed.

9. fastening device (100, 200) according to claim 8, wherein a clamping force, which by means of the clamping plate (131, 231) on the rail (300) is exercisable, by means of the adjusting means (132, 232) is adjustable.

10. Fastening device (100) according to claim 8 or 9, wherein the clamping plate 130) by means of the adjusting means (132) on the second support body (120) is attached.

11. Fastening device (100) according to claim 10, wherein the adjusting means (132) are adjustably mounted on the second support body, so that the rail (300) between the clamping plate (131) and the second support body (120) can be clamped.

12. Fastening device (100) according to any one of claims 9 to 11, wherein the fastening device (100) on the second support body (120) engaging fastening means (140) on the substrate (310) can be fastened.

13. Fastening device (100) according to claim 12, wherein between the fastening means (140) and the second support body (120) an intermediate element (170) is arranged, via which the fastening means (140) on the second support body (120) can engage ,

14. Fastening device (100) according to claim 13, wherein the second support body (120) has a recess (171), in particular a slot, through which the fastening means (140) are guided, and wherein the recess (171) surrounding and the intermediate element facing surface is curved.

15. Fastening device (200) according to claim 8, wherein the clamping plate (231) by means of the fastening means (240) via spacer means (260) on the first support body (210) is mounted at a distance.

16. Fastening device (200) according to claim 15, wherein the fastening device (200) by means of the first support body (210) engaging fastening means (240) on the substrate (310) can be fastened.

17. Use of one or more fastening devices (100, 200) according to any one of the preceding claims for attaching a rail (300) to a substrate (310).

18. Use of one or more fastening devices (100, 200) according to one of claims 1 to 16 for fastening a guide rail designed for an elevator car rail (300) on a supporting device in a lift shaft formed underground (310), wherein the supporting device in particular attached to a wall of the elevator shaft.