EP0745162A1

EP0745162A1 - Rail securing system

Info

Publication number: EP0745162A1
Application number: EP95911241A
Authority: EP
Inventors: Sebastian Benenowski; Albrecht Demmig; Hans-Ulrich Dietze; Alfred Kais; Hubertus Höhne
Original assignee: Voestalpine BWG GmbH; Butzbacher Weichenbau GmbH
Current assignee: Voestalpine Turnout Technology Germany GmbH
Priority date: 1994-02-18
Filing date: 1995-02-18
Publication date: 1996-12-04
Anticipated expiration: 2015-02-18
Also published as: DE4405135A1; DE59502109D1; EP0745162B1; ATE165881T1; DK0745162T3; FI963212A0; FI963212A; AU1891095A; ES2116734T3; WO1995022658A1

Abstract

The invention relates to a securing system for two rails (10, 12), for example wing rails in the cross frog area, which are secured adjacent each other, directly or indirectly on a support (16), such as a rib plate, and comprise rail bases (28, 30, 32, 34). In order to provide reliable internal bracing of the rail bases even when there is little space available, it is proposed that the rail bases (28, 30) are held down in their regions (32, 34) which face one another by a plate element (36, 38) which is in turn secured at least by a rod-shaped securing element (72, 74) which penetrates an opening (50, 52) in the plate element and, in front of and behind the plate element, engages counter-supports (76, 78, 80, 82) projecting from the support (16).

Description

description

Rail fastening

The invention relates to a rail fastening for two adjacent, indirectly or directly secured to a base such as a ribbed plate, having rail feet rails such as wing rails in the frog area, the rail feet are held down in their mutually facing areas by a plate element.

Rail fasteners connect rails with their support. The rail fasteners must perform a variety of tasks. For example, they have to secure the gauge, prevent the rail from tipping over when a force is applied to the side, prevent the rail from lifting off the surface, and create a frame-stiff track by connecting the rail with the support, which is partially resistant to torsion. For this it is necessary that the rail fastening means presses the rail foot onto the support with the necessary force. To achieve this, nails, screws, clamping brackets, wedges, clamps, brackets or clamping plates can be used. The type of rail fastening means to be used depends on the material of the rail support and on the track loads to be expected. However, it is problematic to secure rails running closely next to one another, that is to say narrow rails, such as wing rails in the frog area, on their inner, that is to say mutually facing, rail foot regions without the need for structurally complex measures or the superstructure in this region requiring considerable changes . From DE 29 22 862 C2 it is known to clamp rails inside by means of a clamping piece which is firmly screwed to a ribbed plate.

According to DE 92 11 526U1, a stock rail is held down by means of a sliding chair, the sliding chair itself being secured by an elongated spring element.

The present invention is based on the problem of further developing a rail fastening of the type mentioned at the outset, in particular for narrow rails such as wing rails in the frog area, in such a way that the rail feet are held down securely in their mutually facing regions by means of structurally simple measures, that is to say in particular securing against one The rails are tilted or lifted off.

According to the invention, the problem is essentially solved in that the plate element is secured by at least one rod-shaped securing element which penetrates an opening in the plate element and is supported in front of and behind the plate element on counter bearings extending from the base.

According to the invention, the rail feet of rails running closely next to one another are covered and held down by a plate element, the fastening of the plate element itself not requiring any space between the rails. Rather, the plate element is held down by preferably two rod-shaped securing elements which extend laterally along the base like a ribbed plate and on the one hand penetrate through openings in the plate element and on the other hand are supported on counter bearings which in turn can protrude laterally from the base. In particular, it is also not necessary for the plate element to be screwed to a base, which among other things results in considerable disadvantages in assembly and maintenance. The top of the plate element serves at the same time as support for, for example, a frog tip or a switch tongue, so that the plate element therefore has a double function, namely on the one hand as a rail fastening means and on the other hand as a sliding chair.

In order to additionally secure the plate element against lifting, a particularly noteworthy embodiment of the invention provides that the plate element laterally surrounds a section of the base or a base extending therefrom in the longitudinal direction of the base at least in sections, with projections extending from the plate element in engage existing recesses on opposite sides of the section or base. In this case, the projections preferably run in the longitudinal direction of the base, which engage in the recesses in the base section or base which are formed as longitudinal grooves. The clear distance between the projections should be smaller than the distance between the upper marginal boundaries of the recesses such as longitudinal grooves, so that when the plate element is properly aligned with the section or base, it cannot be raised in an uncontrolled manner even if e.g. one of the rod-shaped securing elements should fail. There is at least a distance between the top of the section or base and the underside of the plate element, since the plate element is pressed non-positively onto the rail feet solely by the securing element or elements.

The counter bearings are preferably designed as receptacles projecting laterally from the base, each receptacle having a support surface for the securing element which is semicircular in section and which is open at the bottom. In contrast, the opening of the plate element which is penetrated by the securing element and which can run in a section extending to the side of the base, should have a rectangular cross section.

To rule out that the securing element, after it secures the plate element, that is to say holds it down, cannot move or move axially in an uncontrolled manner It is provided that the rod-shaped securing element has sections of different cross-sections along its longitudinal axis such that when the plate element is securing and holding down, a first section of the securing element bears at least linearly on one of the support surfaces perpendicular to the longitudinal axis, the securing element in front of and behind the first section has a cross-sectional shape that deviates from this in such a way that axial displacement is excluded, and that the securing element is arranged within the opening with a (second) section of a cross-section in such a way that the securing element in the longitudinal direction of the rail on opposite side walls or edges the breakthrough is present.

These measures ensure that neither the securing element or elements cannot move in the direction of their longitudinal axes, nor that the plate element itself can be displaced in the longitudinal direction of the rails independently of the forces introduced into it.

The existing changes in geometry along the rod-shaped securing element also make it possible for the securing element to be pushed through the opening in the plate element in a simple manner, while at the same time sliding along the receptacle of the counter-bearing lying in front of the plate element in the direction of displacement of the securing element. When securing and holding down the plate element, the securing element is held in a position which preferably deviates by 90 °, in which the securing element is inserted. In order to enable this rotation about the longitudinal axis of the securing element in a simple manner, the securing element has an oval cross section at its rear end so that it can be gripped by a lever-like tool, so that the securing element can be rotated about its longitudinal axis to the required extent .

Generally speaking, the invention is characterized in that the plate element is secured by at least one rod-shaped securing element which is supported on the one hand on the plate element and on the other hand in front of and behind the plate element on counter bearings extending from the base.

Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them - by themselves and / or in combination - but also from the following description of a preferred embodiment to be taken from the drawing.

Show it:

1 shows a first cross section through a frog area,

2 shows a second cross section through the frog area, but in the larger section to the frog tip,

3 shows a plan view of the frog area according to FIG. 1,

4 shows a side view of a rod-shaped securing element and sectional representations thereof,

5 shows a plan view of the securing element according to FIG. 4,

6 is a sectional view of a plate element to be positioned,

7, the plate element positioned according to FIG. 6 and secured by the securing elements to be removed from FIGS. 4 and 5,

8 shows a detail of the plate element, the securing element being shown in a position in which it is inserted, FIG. 9 shows a representation corresponding to FIG. 8, but with a plate element secured by the securing element and

10 a tool rotating the securing element in different positions.

1 and 2, mutually spaced sections through frog areas are shown. The frog area has a customary structure in that wing rails (10) and (12), between which a preferably spring-movable frog tip (14) runs in the exemplary embodiment, are fastened to a base such as a ribbed plate (16), which is of a conventional type Fastening means (18) and (20) optionally with the interposition of elastic intermediate layers with, for example a threshold (22) is connected.

The wing rails (10) and (12) are secured on the outside using conventional rail fastening means such as tensioning brackets (24) and (26) which rest on the rail feet (28) and (30) of the wing rails (10) and (12).

The inner sections (32) and (34) of the rail feet (28) and (30) are braced via a plate element (36) and (38), which also serve as a support for the centerpiece tip. In the case of a spring-movable centerpiece tip, the plate element securing the sections (32) and (34) of the rail feet (28) and, (30) is consequently simultaneously a sliding chair.

The internal bracing of the rails (10) and (12) is carried out according to the invention in the following manner.

The plate element (36) and thus also the plate element (38) has a T-shape in side view and a U-shape in front view, as a comparison of FIGS. 1 and 2 and 6 and 7 shows. The cross leg formed by a plate-shaped section (40) is supported on the sections (32) and (34) of the rail feet (28) and (30), so that the rails (10) and (12) are braced on the inside.

Laterally outside and along the longitudinal sides (41) and (43) of the ribbed plate (16) extend and parallel to each other legs (42) and (44) of the plate element (36), one of which projects inwards and one inwards Extending projection (46) or (48) extending in the longitudinal direction of the rib plate (16). From the side legs (42) and (44), in turn, cuboid sections (54) and (56) have openings (50) and (52), the transverse extent of which is less than the clear distance between the mutually facing longitudinal edges (58) and (60) of the rail feet (28) and (30) of the wing rails (10) and (12).

The plate element (36) surrounds a section or base (62) of the sliding chair (16), as shown in FIGS. 6 and 7, which has longitudinal grooves (64) and (66) in the longitudinal direction of the rib plate (16), into which the web-like projections (46) and (48) of the plate element (36) engage when this is positioned (FIG. 7). The clear distance between the projections (46) and (48) is less than the distance between the side edges (68) and (70) of the base (62) which merge into the longitudinal grooves (64), (66). This ensures that when the plate-shaped element or hold-down (36) is supported and positioned on the section (62), an uncontrolled lifting is no longer possible.

In order to secure the plate element (36) or (38) and at the same time to ensure the desired internal bracing of the rails (10) and (12), rod-shaped securing elements (72) and (74) are provided, of which the securing element ( 72) is shown in FIGS. 4 and 5 in side and top views.

As FIGS. 1, 2 and 3 and 7, 8 and 9 illustrate, the securing elements (72) and (74) on the one hand penetrate the openings (50) and (52) of the plate element (36) and are on the other Counter bearings (76), (78) and (80), (82) are supported and are tensioned by them. In order on the one hand to push the securing elements (72) and (74) through the openings (50) and (52) and then to clamp them on the counter bearings (76), (78) and (80), (82) and on the other hand to ensure that when the securing elements (72), (74) are in the position in which the plate element (36) is secured and the rails (10) and (12) are braced, each securing element (72), ( 74) has a geometry which results from FIGS. 4 and 5 and in particular from the sectional representations. In this respect, the figures expressly serve as additional disclosure means.

The securing element (72) - and thus also the securing element (74) - has a tapered end section (84) so that it can be easily inserted into the opening (50) or (52) of the section (54) of the plate element (36) enable. A section (86) (section BB) adjoins the tip (84) and has an upper boundary following a semicircle (88), which corresponds to the geometry of the counter bearings (76), (78), (80) and (82 ) corresponds in their support surfaces (90) and (92). This is followed by a flattened section (94) following in the section of an ellipse (section CC), which in turn merges into a section (96) which has a rectangular geometry (section DD) with a projection (98). This is followed by a section (100) that follows a rectangular geometry (section EE). This merges into an elliptical section (102) (section FF) which is delimited by a section (104) whose cross section GG corresponds to the cross section EE with the restriction that a quarter of the circumferential surface (106) follows a circular section which corresponds to that of the cross section BB. This is followed by a section (108) with a cross section HH, which corresponds to the cross section BB and is thus used for support on the inner surface of the counter bearing (78) lying in the sliding direction of the securing element (72) before the opening (50). Behind section (108) is followed by a section (110) which is also approximately rectangular in cross section (section JJ). The free end (112) has an elliptical cross section (section KK) which corresponds to the cross section CC. Sections (104) and (110) are spaced apart by a distance that is greater than the extent of the counter bearing (78) in the longitudinal direction of the rod-shaped securing element (72). As a result, the securing element (72) is prevented from moving in the direction of its longitudinal axis when the securing element (72) is in the position securing the plate element (36), in which the projection (98) in the exemplary embodiment abuts on the side wall (114) of the opening (50) of the extension (54) of the plate element (36), whereas the securing element (72) is supported with its opposite surface (116) on the inner side wall (118).

The securing element (74) is positioned accordingly, so that neither the securing elements (72) and (74) in their longitudinal directions nor the plate element (36) can be displaced perpendicularly thereto; because the securing elements (72) and (74) lie with their semicircular outer surfaces (88) of the sections (86) and (108) on the complementary geometrical support surfaces (92) of the counter bearings (76) and (78). Due to the cross-sectional geometries of the sections (104) and (110) adjacent to the section (108), longitudinal migration is prevented. Furthermore, the transverse extension of the sections (96) of the securing elements (72) and (74) which have the projections (98) ensures that the plate element (36) cannot be moved laterally. Furthermore, the securing elements (72) and (74) due to their guidance between the openings (50) and (52) and the support on the counter bearings (76), (78) and (80), (82) cause the plate element ( 36) experiences a tensile force directed in the direction of the rail feet (28) and (30) in such a way that the desired inner rail tension is ensured.

As shown in FIGS. 8 and 9, the projection (98) is directed upward when the securing element (72) is inserted. As soon as the securing element (72) is in the desired position, it is rotated by 90 ° in order to assume the positions shown in FIGS. 7 and 9. For this purpose, the end (112) which is elliptical in cross section passes through a section of a tool (120) designed as a lever arm, which must be pivoted through 90 ° in order to secure element (72) or (74) to rotate from the "sliding position" into the "securing position", the securing element (72) or (74) acting as a spiral spring and the plate element (36) against the sections (32) and (34) of the rail feet (28) and (30) pushes without the plate member (36) and the portion or base (62) of the sliding chair touching along the areas parallel to it.

Claims

Rail fastening

1. Rail fastening for two rails (10, 12) that run alongside one another and which are secured indirectly or directly on a base (16) such as a ribbed plate and have rail feet (28, 30) such as wing rails in the frog area, the rail feet in their mutually facing areas (32 , 34) are held down by a plate element (36, 38), characterized in that the plate element (36, 38) is secured by at least one rod-shaped securing element (72, 74) which has an opening (50, 52) in the plate element ¬ mentes and is supported in front of and behind the plate element on counter supports (76, 78, 80, 82) starting from the base (16).

2. Rail fastening according to claim 1, characterized in that the plate element (36, 38) over two laterally along the base (16) extending securing elements (72, 74) is held down.

3. Rail fastening according to claim 1 or 2, characterized in that the side view of a T-shape and in cross-section a U-shaped plate element (36, 38) on the upper side support such as sliding chair of a frog (14).

4. Rail fastening according to at least one of the preceding claims, characterized in that the plate element (36, 38) has two laterally along and perpendicular to the longitudinal direction of the base (16) extending legs (42, 44), the width of which is less than the clear Distance of the rail feet (28, 30, 32, 34) in its mutually facing edge areas (58, 60).

5. Rail fastening according to at least one of the preceding claims, characterized in that the plate element (36, 38) surrounds a portion (62) of the base (16) or a base extending therefrom at least on top and in the longitudinal direction of the base laterally at least in sections surrounds, with projections (46, 48) extending from the plate element engaging in recesses (64, 66) present on opposite sides of the section (62) or base when the plate element is positioned.

6. Rail fastening according to at least one of the preceding claims, characterized in that the projections (46, 48) extend in the longitudinal direction of the base (16) into the recesses (64, 66) of the section (62) or base, which are designed as longitudinal grooves intervention.

7. Rail fastening according to at least one of the preceding claims, characterized in that the clear distance between the projections (46), (48) is smaller than the distance between the upper marginal boundaries (68, 70) of the recesses (64, 66) such as longitudinal grooves .

8. Rail fastening according to at least one of the preceding claims, characterized in that the counter bearing (76, 78, 80, 82) laterally projecting from the base (16) Recordings (90, 92) are.

9. Rail fastening according to at least one of the preceding claims, characterized in that the receptacle (90, 92) has a support surface for the securing element (72, 74) which is semicircular in section and which is open at the bottom.

10. Rail fastening according to at least one of the preceding claims, characterized in that the opening (50, 52) penetrated by the securing element (72, 74) has an approximately rectangular cross section.

11. Rail fastening according to at least one of the preceding claims, characterized in that the rod-shaped securing element (72, 74) along its longitudinal axis sections (84, 86, 94, 96, 100, 102, 104, 108, 110, 112) of different cross sections such has that at the plate element (36, 38) securing and holding down position a first section (108) of the securing element bears at least linearly on one of the support surfaces (90, 92) perpendicular to the longitudinal axis, that the securing element in front of and behind the first section has a cross-sectional shape that deviates from this in such a way that an axial displacement of the securing element is prevented, and that the securing element is arranged within the opening with a (second) section (96, 98) of a cross section such that the securing element lies opposite in the longitudinal direction of the rail Side walls (114, 118) or edges of the opening (50, 52) lies.

12. Rail fastening according to at least one of the preceding claims, characterized in that the cross section of the second section (96) is rectangular with a projection (98) projecting from one side.

13. Rail fastening according to at least one of the preceding claims, characterized in that the securing element (72, 74) during the pushing through the openings (50, 52) present in the plate element (36) and aligning the counter bearing (76, 78, 80, 82) is in a position which is rotated by 90 ° from the position securing and holding down the plate element (36).

14. Rail fastening for two rails (10, 12) that run alongside one another and which are secured indirectly or directly on a base (16) such as a ribbed plate and have rail feet (28, 30) such as wing rails in the frog area, the rail feet in their mutually facing areas (32 , 34) are held down by a plate element (36, 38), characterized in that the plate element (36, 38) is secured by at least one rod-shaped securing element (72, 74) which is on the one hand on the plate element and on the other hand in front and behind the plate element is supported on counter bearings (76, 78, 80, 82) extending from the base (16).