EP0659224B1 - Rail fastening device - Google Patents

Abstract

A rail fastening device for a slide chair (12) detachably arranged on a ribbed plate (4) is held on a foot (20) of a stock rail (10) by two mutually spaced torsion bar elements (26).

Description

The invention relates to a device for fastening a rail having a rail foot, such as a stock rail or travel rail in the area of a switch or crossing, comprising a base plate for the rail and a plate, such as a sliding chair, which is detachably arranged on the base plate and clamped to the base plate via a spring element means and holds the rail base down or Radlenkerfußplatte, wherein the spring element means by means of an outgoing from the base plate, forming a section of a channel abutment and two outgoing from the plate supports and can be guided into recesses of the plate and wherein one of the supports in the area of the rail foot and the other support in the rail foot remote area of the plate are arranged.

A corresponding device for attaching stock rails is such. B. from the DD 255 758 Al. The device consists of a sliding chair arranged separately from the base plate, which forms a positive connection with the foot of the stock rail and is braced on the base plate by a spring element lying on the side of the sliding chair. The spring element has a U-shape and is supported with its free leg ends on a support lying above the base of the stock rail. If the U-shaped spring element breaks, the sliding chair can no longer hold down the stock rail.

EP 0 336 311 B1 describes a device for fastening a rail, the foot of which is held down by a spring element which starts from a sliding chair which is detachably arranged on the base plate and is tensioned via an abutment which is an integral part of the base plate.

A two-part sliding chair is described in EP 0 113 515 A1. A first part of a sliding chair, which is supported with a section on the foot of the rail, releasably starts from a second part which is firmly connected to a base plate.

According to DE-AS 22 03 041, a stock rail is held down by means of a bar spring element which in some areas extends below a sliding chair which is an integral part of a base plate.

Further rail fastening devices can be found in the patent publications SU 3 57 754, SU 5 94 896, DD 2 94 613 A7, DE 41 12 926 A1 and DE-PS 8 06 012.

The present invention has for its object to develop a device of the type described in such a way that with a simple structural design on the one hand a tilting of the rail is excluded and on the other hand it is ensured in the event of destruction of the spring element means that the rail is held down.

The object is achieved in that the plate is clamped to the base plate by means of two spaced-apart elongated rod spring elements as spring element means and has a recess in the base plate side in which a protruding protrusion from the base plate engages to secure the plate against uncontrolled lifting.

Deviating from the generic state of the art, the plate, such as a sliding chair or a control arm base plate, is no longer fixed in position on the base plate by means of a U-shaped spring element, but by two separate rod spring elements. This means that if one of the spring elements breaks, the other one continues to ensure that the rail foot is held down securely and thus prevents the rail from tipping.

But even if both spring elements should break, it is still ensured that the plate holds the rail foot down, since a base that secures the plate extends from the base plate. On average, this can have an L-geometry, the cross leg of which faces away from the rail and engages in a stepped recess in the plate.

In an embodiment of the invention, it is proposed that each bar spring element pass through a channel which forms the abutment and which is completely or partially closed on the end side and which is completely or partially closed on the circumference, the channel having an insertion opening which tapers in the direction of the rail.

The channel itself can continue in one of the recesses in the plate. which forms the base on the rail foot side support.

Deviating from the known prior art, it is provided that the rail foot-side support runs outside the rail foot and limits it at the edge.

The channel forming the abutment can be delimited by walls emanating from the base plate and forming a U-shape in section. Alternatively, it is possible for the channel to be formed from a section which is L-shaped in section and extends from the base plate and a web-shaped section formed by the plate.

The rod spring element, which is wedge-shaped in the side view, has a rectangular shape in plan view. the width can be changed in the area of the support facing away from the rail foot. This end is fixed in position via a protrusion extending from the plate. In this area, the bar spring element is guided in a channel which is open on the longitudinal edge side and on the face side with respect to the plate, the end of the bar spring element facing away from the rail projecting beyond the plate at the end.

These measures make it easy to insert and tension the bar spring element.

In the area of the support facing away from the rail, the plate can be elastically supported on the base plate. For this purpose, an intermediate layer with the desired characteristic can be arranged between the plate and the base plate.

According to a further development it is provided that the plate is composed of two sections which are mirror-symmetrical to the longitudinal axis and which are arranged at a distance from one another on the support, each section being additionally secured by a projection extending from the support plate. In the case of a panel consisting of two sections, the underlay between the sections can have a recess in order to e.g. via an elastic intermediate layer on the base such as threshold e.g. to arrange a tongue roller device.

If the base plate and the plate are divided along their center line, each of the units formed in this way can be arranged in the longitudinal edge areas of a trough sleeper with ribs which may need to be changed in order to make them freely accessible from above.

If sections of a switch lock extend within the trough threshold, a further embodiment of the invention provides that the Drive for the switch lock is elastically mounted in or on the trough sleeper itself.

Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them - individually and / or in combination - but also from the following description of preferred embodiments to be taken from the drawings.

• Fig. 1 einen Schnitt durch einen auf einer Rippenplatte angeordneten Gleitstuhl,
• Fig. 2 die Anordnung gemäß Fig. 1, teilweise geschnitten,
• Fig. 3 eine Schnittdarstellung einer weiteren Ausführungsform eines auf einer Rippenplatte angeordneten Gleitstuhls mit verschiedenen Ansichten eines den Gleitstuhl sichernden Federelementes,
• Fig. 4 die Anordnung gemäß Fig. 3 in Draufsicht,
• Fig. 5 eine Seitenansicht eines von einer Trogschwelle ausgehenden Weichenverschlußes und
• Fig. 6 einen Schnitt entlang der Linie VI - VI in Fig. 5, jedoch in vergrößerter Darstellung.

Show it:

• 1 shows a section through a sliding chair arranged on a ribbed plate,
• 2 shows the arrangement according to FIG. 1, partially in section,
• 3 shows a sectional illustration of a further embodiment of a sliding chair arranged on a ribbed plate with different views of a spring element securing the sliding chair,
• 4 shows the arrangement according to FIG. 3 in plan view,
• Fig. 5 is a side view of a switch lock emanating from a trough sleeper and
• Fig. 6 is a section along the line VI - VI in Fig. 5, but in an enlarged view.

1 and 2, a device for fastening rails in the form of stock rails (10) is shown, to which a sliding chair (12) is assigned in a known manner, on which a switch tongue, not shown, can be moved. The stock rail (10) and the sliding chair (12) go from a pad or Rib plate (14), which is provided on the side of the stock rail (10) facing away from the sliding chair (12) with ribs (16) and (18) against which the rail foot (20) of the stock rail (10) abuts.

A section (22) of the sliding chair (12) is supported on the rail foot (20) so that the rail foot (20) is held down on the ribbed plate (14) so that the stock rail (10) cannot tilt. For this purpose, the sliding chair (12) which is detachably connected to the rib plate (14) is connected via spring elements in the form of elongated rod spring elements (24) and (26) having a rectangular shape in plan view between an abutment (28) which extends from the rib plate (14) and Support (30) and (32) or (34) and (36) braced. which in turn run in the sliding chair (12).

Each rod element (24), (26) tapers to its ends, that is to say it is wedge-shaped, and has a largest cross section in the region of the abutment (28) (sectional views in FIG. 3). As mentioned, the associated abutment (28) starts from the ribbed plate (14) and forms the upper boundary of a channel (38) or (40) which is closed on the circumference and open on the end. Each channel (38) has an insertion opening (42) or (44) tapering in the direction of the stock rail (10).

The opening (42) and (44) further extends in the direction of the adjacent edge region of the rib plate (14), so that the rod element (24) or (26) can be inserted from the side, as shown in particular by FIG. 2 and 4 is clarified.

The walls delimiting the channel (38) or (40) form a U-shape in section, at least the delimitation wall forming the abutment (28) being formed by a rectangular wall (46) or (perpendicularly extending from the ribbed plate (14). 48) goes out. The remaining edge-side wall (50) or (52), which tapers in the direction of the insertion opening (42) or (44), can also start from the ribbed plate or also be part of the sliding chair (12).

The sliding chair (12) itself has a cavity (54) or (56) in the area of the abutment (28) which surrounds the abutment (28) at least in some areas.

The rail-side supports (30) and (32) extend along the edge along the rail foot (20) and form boundaries which correspond to the ribs (16) and (18).

The supports (32) and (36) facing away from the rail are formed by projections which extend away from the ribbed plate (14) and have channel-like depressions (62) and (64), the geometries of which correspond to those of the end sections of the bar spring elements (24) and ( 26) are adjusted.

In this area, the bar spring elements (24) and (26) extend in open channels which are delimited by the ribbed plate (14) on the bottom side and by the sliding chair (12) and are open towards the edge of the plate (14).

At the end, the bar spring element (24) or (26) projects beyond the ribbed plate (14) with end sections (66) and (68) in order to be able to install the bar spring elements (24), (26) without problems.

Elastic intermediate layers (33) are arranged between the ribbed plate (14) and the sliding chair (12) in the region of the supports (32) and (36) facing away from the rail.

From the ribbed plate (14) starts an L-shaped projection (58) which engages in a recess (60) provided in the sliding chair (12) in such a way that if the spring elements (24) and (26) fail, the Sliding chair (12) is excluded. This results in a further tilt protection for the stock rail (10).

The recess (60) is stepped so that the leg of the mounting projection (58) which runs parallel to the sliding chair (12) on the outside is flush with the top of the sliding chair (12) or is set back to the latter.

The embodiment of FIGS. 3 and 4 differs from that of FIGS. 1 and 2 in that the sliding chair (12) is divided into two sections (72) and (74) which are spaced apart and run symmetrically to the longitudinal axis (70), which are arranged on a ribbed plate (76) which has a recess (80) between the sections (72) and (74). Such a construction has the advantage that elements and devices such as roller devices for a switch tongue can be arranged above the free space (80) directly on a base receiving the ribbed plate (76) or, if applicable, on an elastic intermediate layer provided on the base.

The sections (72) and (74) have otherwise a construction which, when assembled, results in the sliding chair (12). Therefore, basically the same elements are provided with the same reference symbols.

In particular, the lateral insertion openings (42) and (44) of the channels (38) and (40) can be seen from FIG. 4, within which the rod spring elements (24) and (26) extend.

The various views of the rod spring elements (24) and (26) in FIG. 3 are also expressly referred to. Thus, reference number (78) shows a top view and reference number (80) shows a side view of the rod spring elements (24) and (26). The dashed representation of the side view (80) shows the spring element in the tensioned state running between the abutment (28) and the supports (30) and (32).

The embodiment of FIGS. 3 and 4 differs from that shown in FIGS. 1 and 2 in that the edge of the channels (38) and (40) from a section (82) and (84) of the sliding chair sections (72) and (74) is formed.

According to a further proposal, it is provided that a device which obeys the teaching according to the invention is arranged on a trough threshold (84). For this purpose, the arrangement shown in FIGS. 1 and 2 is divided along the center line (70) into two mirror-symmetrical parts (71) and (72), each of which is arranged on a longitudinal edge (75) and (77) of the trough threshold (84) will. The ribbed plate parts then basically correspond to the sections (72) and (74) which can be seen in FIG. 4.

5 and 6, the trough sleeper (84) is shown, from which a switch lock emanates, through the switch rails (86) and (88) associated switch tongues (90) and (92) only in the adjacent (left representation of FIG. 5) and in the remote position (right-hand illustration of FIG. 5) are supported on a sliding chair (94) or (96), whereas a spacing from the sliding chair takes place during the displacement between these end positions. A corresponding switch lock is described in detail in EP 0 455 153 A2, so that reference is made to the disclosure in this regard.

The main components of the switch lock are lock boxes (96) and (98), clamps (100) and (102), clamp receptacles (104) and (106), slide rod (108), tongue test rods (110) and (112) and a support ( 114).

The slide rod (108) and the tongue test rods (110) and (112) as well as an end section of a holder (116) made of U-iron for a drive (118) of the switch lock extend within the trough sleeper (84), an elastic bearing according to the invention he follows. For this purpose, intermediate layers (118), (120) and (122) of suitable rigidity extend at least in sections between the outer surfaces of the U-shaped holder (116) and the inner wall of the trough sleeper (84).

Claims (17)

1. A device for attachment of a rail (10) having a rail foot (20) such as a stock rail or track rail in the area of a points or crossing, comprising a sole plate (14) for the rail and a plate (12) such as a slide chair or check rail footplate disposed releasably on said sole plate, braced on said sole plate by a spring element means (24, 26) and holding down said rail foot, where said spring element means is braceable by an abutment (28) extending from said sole plate and forming a section of a channel and by two supports (30, 32; 34, 36) extending from said plate, and is guidable in recesses (38, 40) of said plate, and where one of the supports is disposed in the area of said rail foot and the other support in the area of said plate at a distance from said rail foot,
   wherein
   said plate (12) is braced with said sole plate (14) by means of two elongated bar spring elements at a distance from one another as spring element means (24, 26) and has on the sole plate side a recess (60) in which engages a projection (58) extending from said sole plate and securing the plate against uncontrolled rising.
2. A device according to Claim 1,
   wherein
   the bar spring element (24, 26) having a tapered end in the side view has in the plan view a substantially rectangular form.
3. A device according to Claim 1 or Claim 2,
   wherein
   the support (30, 34) on the rail side and extending from the plate such as a slide chair is the edge limit of the rail foot (20).
4. A device according to at least one of the preceding Claims,
   wherein
   the bar spring elements (24, 26) each pass through a channel (38, 40) forming the abutment (28) and open at the front side and completely or partially closed on the circumferential side and having an insertion opening (42, 44) tapering in the direction of the rail (10).
5. A device according to at least one of the preceding Claims,
   wherein
   the channel (28, 30) is continued in one of the recesses in the plate (12) that form the rail-side supports (30, 34) on the ground side.
6. A device according to at least one of the preceding Claims,
   wherein
   the channel (28, 30) is limited by walls (28, 48, 52) extending from the sole plate (14) and forming a U shape in section.
7. A device according to at least one of the preceding Claims,
   wherein
   the channel (28, 30) is formed by a section extending from the sole plate (76) and forming an L shape in section and by a web-shaped section (82, 84) extending from the plate (12, 72, 74).
8. A device according to at least one of the preceding Claims,
   wherein
   the plate (12) covers the abutment (28) extending from the sole plate (14) and at least partially encloses it.
9. A device according to at least one of the preceding Claims,
   wherein
   the bar spring element (24, 26) is supported on a projection (32, 36) extending away from the sole plate (14) as a support facing away from the rail foot and having a recess matched to the geometry of that section of said bar spring element resting on the support.
10. A device according to at least one of the preceding Claims,
    wherein
    the bar spring element (24, 26) is guided relative to the plate longitudinal edges in a channel open at the side and front face, where that end (66, 68) of the bar spring element (24, 26) facing away from the rail foot projects over the plate (12) at the end.
11. A device according to at least one of the preceding Claims,
    wherein
    the plate is composed of two sections (72, 74) running mirror-symmetrically to the longitudinal axis and disposed at a distance from one another on the sole plate (76), where each section is secured by a projection (58) extending from said sole plate and inside a recess (60) of the plate on the ground side.
12. A device according to at least one of the preceding Claims,
    wherein
    the projection (58) has an L-shaped geometry in section, the crosspiece of which faces away from the rail (10) and engages in a step-like recess of the plate (12, 72, 74).
13. A device according to Claim 12,
    wherein
    the crosspiece of the projection is flush with the upper side of the plate (12, 72, 74) or is set back therefrom.
14. A device according to at least one of the preceding Claims,
    wherein
    the plate (12, 72, 74) is elastically supported relative to the sole plate (14, 76) at least in the area of the support (32, 36) facing away from the rail.
15. A device according to at least one of the preceding Claims,
    wherein
    the sole plate (76) is arranged on a base such as a sleeper that is accessible via a recess (80) of said sole plate (76), which in turn runs between the sections (72, 74) of the plate.
16. A device according to at least one of the preceding Claims,
    wherein
    a device comprising preferably mirror-symmetrical parts (71, 72) is arranged on longitudinal edge areas of a box-like sleeper (84), where sections of a points lock extend inside said box-like sleeper (84).
17. A device according to at least one of the preceding Claims,
    wherein
    a drive (118) for the points lock is elastically supported in or on the box-like sleeper (84).

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