EP0763494B1 - Method and device for fastening a guide-rail on a rail support - Google Patents

Abstract

The fixing method involves securing a guide rail (1) to a rail support (3) having screw fittings at the sides of the rail foot (2). Holding devices (8) are used to secure the rail in the lateral direction. The holding devices have a side contact surface by which threaded bolts (5) and nuts (12) can be fixed to the support independently of the clamping plate (15).

Description

The invention relates to a method and a device for low friction Attaching a guide rail to a rail support, in which Holding parts brought into contact with each side of the rail foot and with screwed to the rail support and clamping parts with little play the back of the rail foot.

When installing elevator systems, a suitable fastening is used the guide rails for the car and for the counterweight special importance when the elevator shafts are subject to a construction shrinkage, which is often not yet completed for new buildings if the guide rails in the shaft, on the shaft walls, on one Shaft scaffolding or mounted on brackets. Beyond that to expect that the buildings will be compressed by traffic loads and are deformed by wind loads and also the thermal expansion behavior of the guide rails. Therefore, the installation of the Guide rails made in elevator shafts of higher buildings be that between the guide rails and the rail bracket Relative movements in the longitudinal direction possible and lateral Deformations of the rail course are excluded.

For this purpose, elevator construction makes use of spring in tall buildings Clamping plates, with the help of which the guide rails with a limited Contact force with corresponding rail brackets are created. Such clamping plates are available in different for fastening Designs used for running rails, e.g. according to DE-PS 24 34 806 or EP 0 448 839 A1. The known clamping devices are either by direct clamping of the rail with clamps or by indirect bracing of the rail with elastically deformable Intermediate elements effective, the latter a better sliding of the rail should enable.

In addition, U.S. Patent 4,431,087 describes an alignment device and attaching elevator guide rails that a spacer to lateral guidance of the rail foot and a clamping part above it for holding the rail back, these parts together are screwed tight. The rail back is either by a rigid clamping part clamped or by a slim clamping part made of spring steel spring tensioned.

In practice, the relative movements forced by external influences however, such great frictional forces between guide rails and rail supports that usually in the longitudinal direction flexible rail supports deformed by the frictional forces be and / or the rails because of the sum of the frictional forces of all clamping plates generated compressive stresses buckle, changing the track shape on both occasions. To this To compensate for the disadvantage at least partially, the spring rates of elastic intermediate elements are reduced or chosen so low that additional end stops are necessary, which however require the Rail from the rail support in the order of the rail back tolerance allow (up to ± 1 mm). Such a deformation of the rail course leaves in the usual car and guide arrangements at higher Driving speeds too optimal driving behavior.

With a fastening device known from CH-PS 484 826 The type described at the beginning are those after the assembly of the guide rail due to construction shrinkage, wind load, thermal expansion, etc. undesirable curvatures are avoided by having a play between the rail foot and one deemed necessary covers covering clamping part. Spacers are used to make the game, the one before screwing the device between Clamping part and rail support plate inserts. In order to achieve the optimal To achieve play between the rail foot and the clamping part, it is essential the device several times or as long with different spacers screw on the rail girder until the the fixing game finally has the optimal value you are looking for. This work is cumbersome because of assembly and exchange the spacers or to supplement or reduce the spacer thickness the device completely from the rail support each time must be solved. The in this known fastening device Difficulties can also be recognized from the fact that the patentee with the subject of a later application EP 0 448 839 has tried to solve the difficulties described above and the Speed up settings. The game recognized as necessary over the Rail foot was replaced by the spring travel of disc springs and thus again a backlash-free rail clamp of a conventional type is produced. A Another significant assembly disadvantage of the device according to CH-PS 484 826 is that the clamping part in the perpendicular to the rail longitudinal direction two mounting directions (lateral Position on the rail base and distance relationship to the top of the Rail foot) can not be aligned independently; because a correction in one fastening direction inevitably pulls one Alignment correction in the other fastening direction after itself. Because an optimal Align the clamping part in both mounting directions at the same time is practically only possible to a limited extent, especially for fast lifts required straightness of the guide rail with this known Do not reach the fastening device.

The object of the invention is a method and a device for low friction Attachment of guide rails of the type mentioned Art to improve in that the assembly of guide rails and in particular the establishment of an optimal distance relationship between Rail foot and a clamping part covering this opposite the state of the art takes place much faster and cheaper and no longer extremely dependent on the care and skill of the fitters is.

The method proposed according to the invention to achieve this object comprises the characterizing steps indicated in claim 1. In one The first step is the rail by screwing the to the rail base applied holding part fixed with the rail support in the lateral direction. In an advantageous difference to the prior art, all can be work required for the lateral rail fixation quickly and with Execute permanent accuracy since they are separated from those subsequently Setting work taking place for a defined play of the clamping parts respective top of the rail foot and also from work on securing this distance relationship are independent. Thus the game setting and securing considerably simplified because of the fixed setting base the holding parts previously screwed to the rail support are available stand.

This is a device according to the invention that achieves the above object characterized in that the holding part which is used to fix the rail in has a lateral contact surface, through which Clamping part independent screw means can be fixed on the rail support, and that the respective screw means fixing the holding part to the rail support or the holding part both means for adjusting the game one Clamping part as well as assigned to secure its adjusted setting are.

Since with the proposed device on each rail support alike a defined leadership game of the If the rail foot is maintained, there will be both clamping and lifting the rail reliably prevented. About the defined leadership game as a prerequisite for good driving comfort by a power of ten less apply as the usual tolerances of the rail back thickness and To be able to choose, the device according to the invention is preferably operated plate-shaped adjustable clamping parts and on threaded bolts adjustable adjusting nuts, the setting accuracy of Fine thread can be increased. Experience has shown that a leadership game between 0 and 250 µm leads to good results the desired driving comfort is continuously adjustable.

In a particularly simple embodiment, the screw means exist each one with its threaded shaft from the back of the Rail support through an opening extending cap screw and component provided with a threaded bore, the circumference at least has a contact surface for lateral contact with the rail foot and thus at the same time forms a holding part. The one with a threaded hole In the simplest case, the component can be suitable in terms of its contact surface designed nut. According to a variant, one with a lateral contact surface for the base of the rail pushed onto the threaded shaft as an independent holding part with an opening and be attached to it using a screw nut.

Although in the openings or slots of the rail support laterally adjustable screw means basically from any shaped body can exist through simple turning producible threaded bolts with one arranged between their ends Confederation preferred. Such a collar can also have a lateral contact surface be provided so that it is to be placed on the side of the rail foot Holding part forms. The one with the contact surface of the federal government against rotation at the rail foot adjacent threaded bolt is fastened by a screw nut, the bolt end extending through an opening of the rail support is screwed on. - The one required to tighten the screw connection In principle, anti-rotation can also be prevented by holding the Threaded bolt e.g. done over a hexagon socket. Then she can The contact surface also consist of the round outer contour of a round collar.

In a modified embodiment, the screw means comprise also a threaded bolt with one arranged between its ends, arbitrarily designed collar, one end face as a counterhold for a screw fastening on the rail support and one with the Threaded bolt is connected to the base plate in a rotationally fixed manner, which in this case has as a holding part a lateral contact surface for the rail foot.

After the rail foot on both sides by an adjacent and holding part firmly screwed to the rail support against lateral movements is secured, the back of the rail foot is now protected against lifting fixed by the rail support or only clamped to the extent that the Rail is nevertheless able to perform longitudinal movements. Doing so each clamping part by means of an opening on the one projecting above the rail foot Threaded portion of the screw and picked up from one the adjustable adjusting nut covered. An between the clamping part and its adjusting nut, against rotation form-fitting locking plate has one along one Key surface of the adjusting nut foldable section, so that the adjusted Clamping part play is secured. - To the height of the fastening device The adjusting nut can be kept as low as possible above the rail support extend into the through opening of the clamping part and cover this with a flattened flange / screw collar.

In principle, each clamping part can consist of a metal plate extends with one end over the rail foot and its opposite Support means attached to the end of the rail support are. A flat metal plate that is used in conjunction with towering supports is used, has the advantage that it is less deformed and is therefore made of steel of higher strength can. In addition, a clamping part designed in this way can be of various types Support means for different thickness areas of the rail foot be combined.

A suitable supporting means for the clamping part can, for example, on the a back plate that can be fixed on the rail support Tab be provided, with which the base plate in a so-called is modified. In addition, the base plate can be flanged side flaps have, between which the clamping part and / or a locking plate is secured against rotation. A support variant provides that the edged rear flap of the base plate has an opening that is open at the top contains, on the bottom of which the clamping part is supported and on its sides it is secured against twisting.

As an alternative to the aforementioned types of supports for a plate-shaped Clamping part, the support means from one of the plate level of the clamping part beveled end section, which with its Front side rests directly or indirectly on the rail support. In this case to prevent rotation of the clamping part, for example, between its Top and the adjusting nut arranged on a key surface of the Nut upright locking plate provided with the folded Side sections covered the clamping part with a positive fit and with them Front edges lie against the side of the rail foot. - As an anti-twist device the adjusting nut can of course be used instead of a locking plate also with all possible other types of securing such as gluing or pinning pins or grub screws running across or parallel to the thread, Lock nuts, self-locking nuts, etc. are used.

Another version provides that on both sides of the clamping part freely Bottom protruding tabs are formed to prevent rotation, the lower Ends laterally on the base plate fixed on the rail support are and / or their front edges lie against the side of the rail foot.

The setting of a clamping part in a predetermined distance relationship via the rail foot can also be done in such a way that the clamping part instead one of the threaded portion of the rail foot above the height of the Screw hole receiving middle opening two or more in one Rail direction approximately parallel row arranged openings for receiving of bolts / cap screws used to adjust the Clamping part play in threaded holes of the fixed on the rail support Intervene in the holding part. In this case too, this is on the side of the rail foot adjacent and fixed to the rail support as a base for Define the clamping part.

Since the back of the rail foot often has a rough, uneven surface, is preferred if on the underside of the one covering the rail foot At the end of the clamping part a bend running in the direction of the rail Art bead or rounded edge forms, so that the spacing relationship of the Clamping part to the top of the rail foot not due to random bumps of the rail back between the two contact surfaces or through the undefined front cutting edge of the clamping plate, but by a not sharp-edged line contact is generated in a defined position. To set the defined leadership game, either an apprenticeship inserted, a tightening torque specified, one to be removed subsequently Clip inserted or a later, e.g. self-removing by friction Coating may be provided.

Fig. 1

eine Ausführungsform der einer Längsseite einer Führungsschiene zugeordneten Baugruppe der erfindungsgemäßen Befestigungsvorrichtung als Vertikalhalbschnitt nach der Linie I-I in Fig. 2,

Fig. 2

eine Draufsicht auf die Baugruppe in Fig. 1,

Fig. 3

eine Ansicht der Baugruppe nach Fig. 1 als Vertikalschnitt nach der Linie II-II in Fig. 2 mit Blickrichtung von links,

Fig. 4

eine zweite Ausführungsform einer an einer Längsseite der Führungsschiene angeordneten Baugruppe der erfindungsgemäßen Befestigungsvorrichtung entsprechend einem Vertikalhalbschnitt nach der Linie IV-IV in Fig. 5,

Fig. 5

eine Draufsicht auf die Baugruppe in Fig. 4,

Fig. 6

eine Ansicht der Baugruppe nach Fig. 4 als Teilschnitt mit Blickrichtung von links,

Fig. 7

eine Übersicht über die erfindungsgemäße Befestigungsvorrichtung entsprechend einem quer zur Schiene verlaufenden Schnitt mit beiderseits der Schiene dargestellten unterschiedlichen Ausführungsformen von Baugruppen und

Fig. 8

eine Ansicht einer Schienenbefestigung mit Blickrichtung auf die Rückseite des Schienenträgers in Fig. 7.

Further features, including their advantages, form the subject of subclaims and result from the following description of exemplary embodiments of the fastening device according to the invention with reference to the drawings, all features, including those of the claims, individually or in a different combination being able to form further embodiments of the invention. Show it

Fig. 1

1 shows an embodiment of the assembly of the fastening device according to the invention assigned to a longitudinal side of a guide rail as a vertical half-section along line II in FIG. 2,

Fig. 2

2 shows a top view of the assembly in FIG. 1,

Fig. 3

1 as a vertical section along the line II-II in Fig. 2 with a viewing direction from the left,

Fig. 4

5 shows a second embodiment of an assembly of the fastening device according to the invention arranged on a longitudinal side of the guide rail, according to a vertical half-section along the line IV-IV in FIG. 5,

Fig. 5

4 shows a top view of the assembly in FIG. 4,

Fig. 6

4 is a partial section with the viewing direction from the left,

Fig. 7

an overview of the fastening device according to the invention in accordance with a cross-sectional cut with different embodiments of assemblies and shown on both sides of the rail

Fig. 8

7 shows a view of a rail fastening with a view towards the rear of the rail carrier in FIG. 7.

Gleitklemme" dar, die den Schienenfuß gegenüber Bewegungen sowohl in Richtung der Schienenfußbreite als auch in Richtung der Schienenfußhöhe reibungsarm klemmt/festlegt, jedoch in Schienenlängsrichtung verlaufende Relativbewegungen zwischen der Schiene einerseits und der Befestigungsvorrichtung bzw. dem Schienenträger andererseits zuläßt.A guide rail 1 shown in FIG. 7 is fixed with its rail foot 2 to a rail support 3 fixedly attached to the shaft wall (not shown) in such a way that relative movements caused by construction shrinkage, wind load, thermal expansion and the like external effects between the guide rail and the rail holder are still possible , without causing lateral deformations of the rail course and without the rail lifting off from the rail support. In this sense, the fastening device according to the invention

Slide clamp ", which clamps / fixes the rail foot against movements both in the direction of the rail foot width and in the direction of the rail foot height with low friction, but permits relative movements running in the longitudinal direction of the rail between the rail on the one hand and the fastening device or the rail support on the other hand.

Basically, the fastening device consists of an assembly that fixes the rail foot on the rail support 3 laterally. These assemblies are at a suitable longitudinal distance from each other along the guide rail 1 arranged on both sides of the rail foot 2, it is not it is imperative to have two at each fastening point on both sides of the rail Assemble modules exactly opposite each other. One of those staggered arrangement results e.g. inevitably when the guide rail to be attached to diagonal struts of a latticework or lattice mast and the diagonal struts serve directly as rail supports. At a The advantageous embodiment described below are two of the same type Fasteners face each other on either side arranged the rail. The right in Fig. 1 to 3 and in Fig. 7 of the Center line shown includes a through an elongated hole 4 in Rail support 3 extending threaded bolt 5, which is between a lower Threaded section 6 and an upper threaded section 7 into one Bund / thickening 8 is expanded. The collar 8 serves as a holding part for setting the rail in the lateral direction and has a non-circular circumference with at least one flattened contact surface 9, which is screwed in place of the threaded bolt on the side of the rail foot 2 brought into contact becomes. The lower end face of the federal government 8 sits on the rail support 3 on so that the threaded bolt 5 from the back of the rail support 3 screwed down by means of washer 11 and screw nut 12 can be.

By firmly screwing the threaded bolts 5 of both assemblies on Rail support 3 is the guide rail 1 on the rail base 2 against lateral Movements fixed, but the only generated by hand pressure Contact force between the rail foot side and the contact surfaces 9 of the Holding parts allows relative movements in the longitudinal direction of the rail. On the fixed upper thread section 7 of the now available as an adjustment base standing threaded bolt 5 is a plate-shaped in the example Clamping part 15 opposite the top of the rail foot 2 little play adjusted in such a way that both a clamping and a Lifting the rail from the rail support 3 is reliably avoided. This Purpose is an adjustable nut on the upper threaded section 7 13. The clamping plate 15 has a folded down End section 16, the end face of which supports it on the rail support 3 is. At the opposite front end of the clamping plate 15 can a slight upstand 17 around a parallel to the longitudinal direction of the rail Bending axis should be provided that the convex underside of the clamping plate there comes to rest on the back of the rail foot and for the simplified Measuring and setting a tightly defined leadership game (approximately between 0 and 250 µm) is helpful.

The clamping plate 15 contains a through opening 18 with which it is on a tapered peripheral portion of the adjusting nut 13 is guided. The adjusting nut 13 has a radially expanded screw collar 14 with which it the clamping plate 15 and an overlying one provided with an opening Locking plate 19 covered. The locking plate 19 extends with its front edge 20 approximately up to the top of the upstand 17 Clamping plate and has angled downwards and on the side surfaces the clamping plate 15 adjacent side walls 21, the side of which on the rail foot adjacent front edges 23 to prevent rotation of the sheet 19 and the clamping plate 15 are effective. After the defined leadership game the clamping plate opposite the back of the rail foot by turning the adjusting nut 13 has been set, a section 22 of the locking plate 19 edged and on a key surface of the screw collar 14 brought to the plant.

In a preferred embodiment of the fastening device according to the invention 4 to 6 and Fig. 7 on the left is the clamping part designed as a flat clamping plate 15 so that it is less deformed must be made and therefore made of steel with higher strength can.

For the rear support of the clamping plate 15 a e.g. as a sheet metal stamped and bent part producible base body 24, the at least one of which Has base plate 25 made of folded back flap 28. Between the extending with an extension 31 to under the rail foot base plate 25 and one similar to that described in the example of FIGS. 1 to 3 Threaded bolt 5, a non-rotatable connection is provided, which a knurled circumference 10 or another profile of the threaded bolt below its collar 8 and / or a correspondingly profiled Opening of the bottom plate 25 exists.

Overall, the base body 24 has an upturned base plate 25 rear flap 28 and two edged side flaps 29. On the upper free end face of the rear tab 28 supports the rear End of the clamping plate 15, which according to Fig. 5, 6 between extends the two side tabs 29 and thus with respect to the Main body is held in a rotationally fixed. The side tabs 29 have the amount of Rail foot 2 vertical front edges 30, with which they laterally on Rail foot can be brought to the plant. They protrude above 4 with protruding lugs up over the Rail foot.

To set the rail foot 2 in the lateral direction is used in the Embodiment according to Fig. 4 to 6 of the threaded bolt 5 rotatably connected base body 24 or the front edge 30 of the side tabs 29. Before screwing down the one belonging to this module Threaded bolt 5, the collar 8 on its circumference no contact surface need, the base body 24 connected to this in a rotationally fixed manner the front edges 30 of its side straps 29 on the side of the rail foot Plant brought. In this contact position, the one on the threaded section 6 seated and arranged behind the rail support 3 screw nut 12 attracted to the base plate 25 between the example here an annular extension forming collar 8 and the rail support 3rd clamp firmly.

Setting a defined game between the clamping plate 15 and the back of the rail foot is similar to the first embodiment described with the help of an upper thread section 7 of the threaded bolt 5 screwed adjusting nut 13 with a tapered section corresponding receiving openings of the clamping plate 15 and above Locking washer 19 penetrated. The side straps 29 of the base body 24 are used as an anti-rotation device for both the clamping plate 15 and the correspondingly wide locking plate 19 is provided. The side tabs 29 extend in a particularly advantageous embodiment with a nose arranged above the front edge 30 according to FIG. 4 to the front and at a distance up to the top of the rail foot so that even the laterally aligned screwed basic body before setting the clamping plate holds the rail foot in position. Instead of of a bent molded part, the base body 24, depending on the development of costs other manufacturing processes also performed as a forged or cast part be.

To mount the guide rail 1 on the rail support 3, the Devices belonging to the assembly complete with threaded bolts 5, Base bodies 24 and clamping plates 15 loosely preassembled on the rail support 3. The threaded bolts 5 are first in the slots 4 of the 7 just pushed as far apart that the rail between the adjustable clamping plates 15 of two each other opposite assemblies can be passed. When using Assemblies according to the example according to FIGS. 4 to 6 come on the rail on the inwardly projecting sections 31 of the bottom plate 25 of the Base body 24 to rest on, which results in the threading of the rail foot 2 considerably easier under the clamping plates 15.

After the two modules have been pushed together the following alignment and fastening work is also considerably easier, if a spacer plate 32 is used according to FIG with a round hole on which a threaded bolt is mounted and with a open slot 33 hung on the opposite threaded bolt becomes. At this point the rail is already positive held on the rail support that the fitter without the rail to hold, do the following alignment and attachment can. The round hole and the open slot 33 of the spacer plate 32 have sufficiently large tolerances, so that within the preset Distance relationship still fine adjustments are possible. In this The front edges 30 of the side straps of the base body can make sense 24 or the flattened circumference 9 of the federal government 8 on the side of the respective Rail base with the required alignment dimension are brought to the system, before screwing the threaded bolts to the rail support 3. Last the guide play between the clamping plates 15 and the top the rail foot 2 with the help of the adjusting nuts 13 and by Turning the locking plate 19 fixed. To measure the leadership game a defined tightening torque is generated by the adjusting nut to the extent that the clamping part can just be moved by hand is.

If the spacer plate 32 has several open elongated holes or contains several round holes, it can be used for multiple rail base widths become.

In a variant of FIG. 4 or FIG. 7, not shown, on the left, the Base plate 25 may be shortened at the front end and a contact surface as a holding part have for lateral application on the rail foot. The guide rail 1 is then, as in FIG. 7, on the right, directly on the rail support 3 on. Irrespective of this, the base body 24 can be missing due to missing side tabs 29 simplified and the rear flared tab 28 higher and so be wide that in it an upper recess for support and for lateral Management of the clamping plate 15 is used.

Reference list

1 -

Guide rail

2 -

Rail foot

3 -

Rail support

4 -

Elongated holes in 3

5 -

Threaded bolt

6 -

lower thread section

7 -

upper thread section

8th -

Collar / thickening

9 -

Contact surface on 8

10 -

Knurling on 5

11 -

Washer

12 -

Nut

13 -

Adjusting nut

14 -

Screw collar on 13

15 -

Clamping plate

16 -

beveled end at 15

17 -

Edge on 15

18 -

Through hole in 15

19 -

Lock washer

20 -

Leading edge of 19

21 -

Side sections

22 -

upturned sheet metal section

23 -

Leading edge of 21

24 -

Basic body

25 -

Base plate

26 -

Opening in 25th

28 -

rear tab

29 -

Side tabs

30 -

Leading edge of 29

31 -

front extension of the base plate

32 -

Spacer plate

33 -

open slot

Claims (20)

1. Method for the low friction securing of a guiding rail (1) onto a rail carrier (3), in which on either side of the rail foot at least one holding element (8, 25) is positioned and screwed to the rail carrier and at least one clamping element (15) is secured with little play over the back of the rail foot, characterised in that firstly by firmly securing only the holding element (8, 25) positioned laterally on rail foot to the rail carrier (3) the rail (1) is secured in lateral direction, and in that afterwards the clamping element (15) is adjusted at a distance from the respective back of the rail foot corresponding to the prespecified play, and in that then the clamping element (15) is secured at its set distance from the upper side of the rail foot.
2. Device for the low friction securing of a guiding rail (1) onto a rail carrier (3) comprising a holding element (8, 24, 25) securable to a rail carrier with a lateral bearing surface (9, 30) for securing the rail (1) in lateral direction, and a clamping element (15) securable with play over the back of the rail foot, characterised in that holding element (8, 24, 25) can be secured to the rail carrier (3) by screw means (5, 12) independent of the clamping element (15), and in that means for adjusting (13) the play of a clamping element (15) and means for securing (19) its adjusted position are assigned to the respective screw means (5, 12) or the holding element (8, 24, 25) fixing the holding element (8, 24, 25) onto the rail carrier (3).
3. Device according to claim 2, characterised in that the screw means comprise a cap screw extending with its threaded shaft from the rear side of the rail carrier (3) through an opening, and a component provided with a threaded bore, the circumference of which comprises at least one bearing surface for lateral positioning on the rail foot (2), and thereby simultaneously forms a holding element.
4. Device according to claim 3 characterised in that a base plate (25) provided with a lateral bearing surface for the rail foot, as an independent holding element, can be pushed with an opening onto the threaded shaft and is securable onto the latter by means of a screw nut.
5. Device according to claim 2, characterised in that the screw means comprise a threaded bolt (5) with a flange (8) arranged between its ends, which with a lateral bearing surface (9) for the rail foot forms the holding element, and a screw nut (12), which is screwed onto the one bolt end (6) extending through an opening of the rail carrier (3).
6. Device according to claim 2, characterised in that the screw means comprise a threaded bolt (5) with a flange arranged between its ends, one front side of which acts as a hold on for a screw fastening onto the rail carrier (3), and fits on a base plate (25) connected rotation-fast with the threaded bolt, which is provided as a holding element with a lateral bearing surface for the rail foot.
7. Device according to one of claims 2 to 6, characterised in that each clamping element (15) is mounted by means of a through opening on the threaded section of the screw means projecting over the height of the rail foot (2) and is held by an adjusting nut (13) adjustable on the threaded section, and in that a securing plate (19), arranged between the clamping element (15) and its adjusting nut and secured positively against torsion, forms with a section (22) that can be angled along a key surface of the adjusting nut the securing means for the clamping element play adjusted relative to the back of the rail foot.
8. Device according to claim 7, characterised in that the adjusting nut (13) extends into the through opening of the clamping element and grips over the latter with a flattened flange/screw collar (14).
9. Device according to one of claims 2 to 8, characterised in that each clamping element (15) comprises a metal plate, which extends at one end over the rail foot (2) and support means bearing against the rail carrier (3) are assigned to its opposite end.
10. Device according to claim 9, characterised in that the support means comprise an end section (16) angled from the plate plane of the clamping element, which with its front side bears directly or indirectly on the rail carrier.
11. Device according to one of claims 4 to 9, characterised in that on the base plate fixed by the screw means onto the rail carrier (3) an angled rear plate (28) is provided as support means for a flat clamping plate (15), which is additionally secured against torsion.
12. Device according to one of claims 2 to 11, characterised in that the base plate (25) fixed onto the rail carrier (3) has angled side parts (29) between which the clamping element (15) and/or the securing plate is secured against torsion.
13. Device according to claim 11, characterised in that the angled rear part of the base plate comprises a recess that is open at the top, on the base of which the clamping element is supported and on the sides of which the clamping element and/or the securing plate is secured against torsion.
14. Device according to one of claims 7 to 11, characterised in that on both sides of the clamping element (15) freely downwards projecting parts are formed to secure against torsion, the bottom ends of which are guided laterally on the base plate fixed on the rail carrier and/or its front edges bear laterally on the rail foot.
15. Device according to one of claims 7 to 11, characterised in that for torsionally securing the adjusting nut a locking plate (19) arranged between the adjusting nut and the clamping element is provided, which with angled side sections (21) covers the clamping element positively, the front edges (23) of which bear on the side of the rail foot (2).
16. Device according to one of claims 2 to 6, characterised in that each clamping element (15), instead of a middle opening (18) receiving the threaded section of the screw means projecting over the height of the rail foot, comprises two or more openings to receive screw bolts/screw caps, which to adjust the clamping element play engage in threaded bores of the holding element fixed to the rail carrier.
17. Device according to one of claims 2 to 16, characterised in that on the underside of the end of the clamping element covering the back of the rail foot, an angled section (17) running in the direction of the rail forms the bearing region as a rounded edge.
18. Device according to one of claims 2 to 17, characterised in that two cap screw or threaded bolts (5) that are provided with premounted clamping elements and possibly holding elements and are adjustable in the openings/elongated slots (4) of the rail carrier, in the mounted position of their holding elements on both sides of a guiding rail mounted therebetween by means of a spacing plate (32) can be arrested relative to one another before the securing of the screw means.
19. Device according to claim 18, characterised in that the spacing plate (32) on the rear side of the rail carrier can be pivoted by means of a round hole on one of the threaded bolts (5), and for engagement with the other threaded bolt or screw shaft comprises an open elongated slot (33).
20. Device according to one of claims 2 to 19, characterised in that the base plate (25) extends under the rail foot (2).

Images