Rail mounting device for sound-damping mounting of a rail

Abstract

The invention relates to a rail mounting device (1) for sound-absorbing mounting and fastening of a rail (2), comprising a ribbed plate (3) for arranging the rail (2) on a top surface (4) of the ribbed plate (3), a first damping element (6), preferably an elastomer bearing, and a frame (7), wherein the first damping element (6) is arranged between the ribbed plate (3) and the frame (7). According to the invention, a further damping element (8) is provided below the ribbed plate (3) for limiting deflection.

Description

[0001] The present invention relates to a rail support device for sound-damping support and fastening of a rail, comprising a ribbed plate for arranging the rail on an upper side of the ribbed plate, a first damping means, and a frame. The first damping means can be designed as an elastomer bearing and is arranged between the ribbed plate and the frame to dampen the ribbed plate.

[0002] Rail fastening systems of the aforementioned type are well known in practice. A particularly well-known type of such a rail support system is the so-called "Cologne Egg." The "Cologne Egg" refers to a rail fastening system that reduces structure-borne noise. Structure-borne noise, in turn, is the cause of secondary airborne noise in buildings adjacent to or above railway lines. The name "Cologne Egg" is derived both from the oval shape of the rail support system used in practice and from the city name Cologne, as this type of fastening system was first developed and used in Cologne.

[0003] With regard to the functionality of the "Cologne Egg," reference should be made to DE 28 32 989 C2, which describes the functional principle of sound-insulating rail mounting. This sound-insulating rail mounting is based on the device for sound-insulating mounting of heavy components described in DE 28 28 714 A1.

[0004] Both the ribbed plate and the frame may be made of metal, wherein these two metal parts are connected to each other by vulcanization, namely by or via the first damping means.

[0005] The frame can be provided with lugs with holes for fastening to the substructure with sleeper screws or threaded fittings. The ribbed plate can be supported by the first damping element, which can preferably be a vulcanized elastomer. The first damping element, in turn, can be supported on the frame. Such a design of the rail support system ensures that vertical forces are distributed into shear and compression components. This is the basis for the acoustic effectiveness of the so-called "Cologne Egg."

[0006] The construction of the "Cologne Egg" type rail support system known from practice has a maximum installation height of at least approximately 76 mm. For the purposes of the present invention, the installation height is understood to be the distance from the underside of the frame to the top of the ribbed plate, whereby the ribs or the height of the ribbed plate's ribs are not taken into account when determining the installation height. Since it is also known from practice that the top of the ribbed plate runs at an angle to the subsurface and / or at an angle to the underside of the frame, the maximum installation height is understood to be the installation height at the highest point of the top of the ribbed plate.

[0007] DE 199 24 891 C1 discloses a sound-insulating rail support intended for a rail belonging to a track. The rail support comprises a rail support plate for supporting the rail and a frame for fastening the rail support to a support surface.

[0008] EP 0 236 703 A2 relates to a rail bearing having a first and a second damping means.

[0009] DE 29 33 541 A1 also concerns a rail bearing.

[0010] US 2018 / 016754 A1 concerns a rail bearing with a damping device.

[0011] However, in practice, this height of the "Cologne Egg" creates the problem that the "Cologne Egg" cannot be easily integrated into existing rail support systems, as these often require a lower installation height. Therefore, in practice, the use of the "Cologne Egg" often requires the subsoil in these sections to be processed or removed accordingly during integration to compensate for the height of the "Cologne Egg." This process is not only time-consuming but also generates high commissioning costs for the "Cologne Egg."

[0012] The object of the present invention is to avoid the aforementioned disadvantages of the prior art or at least to substantially reduce them.

[0013] The above-mentioned object is achieved according to the invention by a rail support device for sound-damping support and fastening of a rail according to claim 1.

[0014] According to the invention, the rail support device has a ribbed plate for arranging the rail on an upper side of the ribbed plate. For arranging the rail on the upper side of the ribbed plate, the ribbed plate can have at least two ribs between which the rail can be enclosed. According to the invention, the rail support device further comprises a first damping means, which is designed in particular as an elastomer bearing or as an elastic bearing, in particular a rubber-elastic bearing. In addition, the rail support device comprises a frame, which delimits the rail support device, in particular on the outside. The first damping means is arranged between the ribbed plate and the frame. In particular, the first damping means separates the ribbed plate from the frame, preferably completely and / or circumferentially.

[0015] Furthermore, the invention provides that a further damping means is provided below the ribbed plate to limit deflection.

[0016] The additional damping means can be provided and arranged separately from the first damping means. However, in further embodiments of the invention, it is also possible for the additional damping means to be connected to the first damping means.

[0017] The additional damping means is particularly designed to ensure a spring deflection limit. In the prior art, the springing or damping of the "Cologne Egg" is provided solely by the first damping means. Due to the arrangement and design of the first damping means in the prior art, a certain height and width of the first damping means must be provided to ensure the damping properties necessary to reduce structure-borne noise. According to the invention, it is now possible for not only the first damping means to be provided to reduce structure-borne noise and limit spring deflection. The additional damping means can then also contribute to the damping properties or at least partially ensure them as well.

[0018] According to the invention, this results in the significant advantage of making it possible to reduce the dimensions, in particular the height and / or width or material thickness, of the first damping means—without, however, causing disadvantages with regard to the sound-reducing properties of the "Cologne Egg." According to the invention, the structure-borne sound reduction achieved by the known "Cologne Egg" can be maintained or even improved.

[0019] By providing an additional damping means, the invention provides the significant advantage that the installation height can be significantly reduced, preferably by at least 10%, compared to rail support devices of the "Cologne Egg" system known from the prior art.

[0020] Such a reduction in installation height also offers the advantage that it is possible to use rail support systems based on the "Cologne Egg" system in sections and / or areas that require an installation height of less than 76 mm due to the existing rail support system. Accordingly, complex subsurface preparation is eliminated, so that the rail support system according to the invention can be installed comparatively easily in existing rail support systems. This increases the flexibility of using the "Cologne Egg" and also creates the possibility of integrating the "Cologne Egg" into a variety of existing rail support systems, which was not possible before the invention due to the specified increased installation height of the "Cologne Egg" known from the prior art.

[0021] In this context, the deflection limiter ensures, in particular, that the ribbed plate can only be lowered to a certain height, which is understood in the invention as deflection limiter. This distance or this variable height difference of the deflection limiter can result, on the one hand, from the material properties of the first damping means and / or the additional damping means, as well as from a distance between the underside of the additional damping means and the ground.

[0022] Ultimately, with such a gap between the underside of the additional damping element and the substructure, this gap would first have to be bridged, and then the material of the additional damping element would have to be compressed. In this context, it is understood that the first damping element also provides appropriate damping when the ribbed plate is loaded, thus ensuring the spring properties. Thus, in addition to the additional damping element, the first damping element also contributes to limiting deflection.

[0023] According to the invention, a deflection limiter can be provided in the range between 1 and 15 mm, preferably between 2 and 10 mm, and in particular between 4 mm + / - 1 mm. Such a deflection limiter enables effective and reliable damping of structure-borne sound and thus contributes to the stability of buildings located near the rail. However, it does not guarantee an arbitrarily high deflection; rather, the deflection limiter allows this deflection to be reduced to levels proven in practice.

[0024] Accordingly, according to the invention, the rail support device can be used with the same or improved structure-borne sound reduction properties as the "Cologne Egg" known from the prior art, but in particular can ensure a lower installation height.

[0025] The rail support device according to the invention is preferably particularly easy to integrate into existing rail systems. In this context, it has proven particularly advantageous if, in particular, the additional damping means, the first damping means, the ribbed plate, and the frame are firmly connected to one another, in particular by a material bond, preferably by vulcanizing the damping means. This allows this assembly to be handled as a compact, coherent unit, thus avoiding errors during assembly of the rail support device.

[0026] The frame preferably has a recess for arranging the first damping means and the ribbed plate. The recess can be designed as an opening. In particular, the recess serves to accommodate the first damping means, in particular wherein the first damping means rests circumferentially on the inner wall of the recess, preferably being firmly connected to it, preferably vulcanized thereto. Such vulcanization makes it possible to handle the frame and the first damping means as a common assembly, as already explained above.

[0027] In a particularly preferred embodiment of the present invention, the additional damping means is adjacent to the underside of the ribbed plate, in particular resting against it, and / or connected to it. In particular, the additional damping means can be integrally bonded to the underside of the ribbed plate. Preferably, the additional damping means is vulcanized to the underside of the ribbed plate, at least in some areas, preferably completely.

[0028] Alternatively, the additional damping means can be designed to rest on the ground and be spaced apart from the underside of the ribbed plate. In such an embodiment, the overall deflection limitation achieved is determined partly by the material of the damping means and partly by the distance or gap between the upper side of the additional damping means and the underside of the ribbed plate.

[0029] If the additional damping means is connected to the underside of the ribbed plate and / or arranged adjacent thereto, the achieved deflection limitation results in particular from the distance between the underside of the additional damping means and the material properties of the additional damping means or damping means, as already explained at the beginning.

[0030] Furthermore, in a preferred embodiment of the inventive concept, it is provided that the first damping means and / or the further damping means comprise an elastomer, in particular a synthetic rubber, and / or an elastic, preferably rubber-elastic, material. Natural rubber (NR) can be provided as the elastic, in particular rubber-elastic, material. The further damping means is preferably made of natural rubber.

[0031] The provision of the first damping means and the additional damping means according to the invention makes it possible to individually adjust the damping or spring properties of the rail support device to different applications. Such adjustment can also be achieved by selecting the material of the damping means.

[0032] In this context, different combinations are possible, which ensure a high degree of flexibility in the damping possible when using the rail bearing device.

[0033] Thus, the materials of the first damping means and the additional damping means can be at least substantially identical. However, it is also alternatively possible for the first damping means to comprise a different material than the additional damping means. For example, the first damping means could comprise an elastomer, in particular a synthetic rubber, whereas the additional damping means could comprise a natural rubber. Different additives of the materials for the first and additional damping means are also conceivable according to the invention.

[0034] Preferably, the first damping means has at least substantially the same hardness or a different hardness compared to the hardness of the additional damping means. Adjusting the hardness can also ensure that specific damping properties of the first and additional damping means can be specifically ensured and thus utilized – each for the optimal application and for improved rail support.

[0035] Particularly preferably, the additional damping means has a Shore A hardness (in particular according to DIN EN ISO 868 and / or DIN ISO 7619, as of September 2022) between 40 and 80, preferably between 45 and 50, and in particular 50 + / - 20%. The aforementioned Shore hardnesses enable a rubber-elastic design of the additional damping means and, at the same time, also limit the deflection of the ribbed plate.

[0036] The aforementioned damping properties of the first and the further damping means make it possible to provide the particularly advantageous properties of reducing structure-borne noise by the "Cologne Egg" also in the rail support device according to the invention, which is preferably to be regarded as a further development of the "Cologne Egg".

[0037] According to the invention, a recess is provided on the underside of the ribbed plate to accommodate the additional damping means. In particular, the recess is designed such that, in the unloaded state of the rail support device, the underside of the additional damping means is spaced from the ground or a gap is provided, preferably by at least 0.5 mm, preferably between 1 and 10 mm, more preferably between 1.5 and 2.5 mm.

[0038] In this case, it can be provided that the recess is designed to be complementary—in terms of dimensions—to the additional damping means. Preferably, the additional damping means protrudes at least partially beyond the recess and thus beyond the ribbed plate.

[0039] The further damping means can in particular at least substantially completely fill the surface of the recess of the ribbed plate.

[0040] The recess can be provided, in particular, by appropriately machining a ribbed plate already known from the prior art, thus enabling the adaptation of a known ribbed plate for use in a rail support device according to the invention. Ribbed plates with a corresponding recess can also be manufactured in the factory during production.

[0041] In a preferred embodiment, the additional damping means comprises a plurality of projections, particularly in the form of knobs. In particular, the projections can protrude or protrude from a base surface facing the underside of the ribbed plate. The projections can, in particular, extend beyond the recess.

[0042] Alternatively or additionally, the projections can be designed at least partially, preferably entirely, as solid bodies. This solid design allows for optimal damping properties for the rail support device.

[0043] The design of the projections makes it possible, in particular by spacing the projections from one another, for the projections to be compressed when the ribbed plate is subjected to a corresponding load and to enable corresponding load transfer, in particular when the underside of the projections is already in contact with the substrate or when the upper side of the base surface is in contact with the underside of the ribbed plate. Whether the underside of the projections is in contact with the substrate or the upper side of the base surface is in contact with the underside of the ribbed plate depends on whether the base surface is firmly connected to the underside of the ribbed plate or not. The projections and their spacing from one another thus ensure that the material can expand accordingly under load and provide the deflection limitation according to the invention, in particular without causing any material stress on the ribbed plate or the frame.

[0044] Preferably, the projections can also be firmly connected to the base plate and / or formed in one piece with it.

[0045] The projections can be essentially identical or different from each other. An identical arrangement allows the additional damping element to be manufactured relatively easily and cost-effectively, ensuring optimal damping properties.

[0046] In particular, the subsurface is formed by the plane spanned by the underside of the frame facing away from the rail - especially in the unloaded state of the rail support device.

[0047] Preferably, the further damping means comprises between 2 and 30, more preferably between 3 and 20, and preferably between 4 and 10, projections. Alternatively or additionally, the projections may extend over at least 10%, preferably between 10% and 90%, more preferably between 20% and 40%, and in particular between 30% and 70%, of the surface of the base area. The fact that the projections do not extend over the entire surface of the base area also ensures that the projections are spaced apart from one another. The distance between two immediately adjacent projections may vary and, in particular, be provided in accordance with the desired damping properties.

[0048] In a particularly advantageous embodiment of the invention, the projections are provided with an at least substantially cylindrical and / or at least substantially conical, preferably truncated cone, shape. The conical shape offers the advantage that, when the projections are loaded, excessive widening can be counteracted by a corresponding material expansion. Finally, in connection with tests carried out during the development of the invention, it was found that the conical shape ensures optimal damping properties of the additional damping means when used for the rail bearing device. In this context, it can be provided that the projections taper conically from the base surface to the underside of the additional damping means, which faces the ground.Accordingly, the outer diameter of the projections in the area of ​​the substrate or facing the substrate can be smaller than the outer diameter of the projections in the area of ​​the base surface. This allows for material expansion of the projections to be compensated when the projections are subjected to load.

[0049] Preferably, it can be provided that the damping means has projections arranged in rows, wherein projections can also be arranged outside a row. Projections arranged in a row can in particular have at least substantially the same distance from one another. Alternatively or additionally, it can be provided that, in a plurality of rows, the rows are equidistant from one another. It can also be provided that, for example, at least three projections are arranged in at least two rows and further projections are provided outside these rows, wherein in this case, in particular, a constant distance is not included between each pair of immediately adjacent projections. Finally, the projections can be arranged on the base surface in such a way as to result in optimal damping behavior of the further damping means.

[0050] The thickness of the base surface can also be provided depending on the height of the projections. Thus, the material thickness of the base surface of the additional damping means can correspond to at least 1%, preferably between 1% and 60%, more preferably between 5% and 20%, and in particular between 10% and 15% of the maximum height of the projections. The material thickness of the base surface can, in particular, be at least substantially constant. The aforementioned ratios between the material thickness of the base surface and the height of the projections make it possible to adapt the deflection limitation to the needs and requirements of the respective installation situation.

[0051] In a particularly advantageous embodiment of the present invention, the rail support device has a maximum installation height of at least 40 mm, preferably between 40 and 70 mm, more preferably between 50 and 60 mm. The installation height can be provided according to customer specifications. As previously explained, in this context, the installation height is determined by the distance between the underside of the frame and the top side of the ribbed plate (excluding the ribs of the ribbed plate).

[0052] Furthermore, it is understood that the top of the ribbed plate can also be inclined to the substructure and / or to the underside of the frame when installed. In this context, the maximum installation height is understood to be the greatest height.

[0053] In particular, it can be provided that the minimum installation height (i.e. the lowest installation height) in the assembled state is at least 30 mm, in particular between 30 and 60 mm, more preferably between 40 and 50 mm. The distance between the minimum and maximum installation heights can vary depending on the size or length of the rail support device. Between the maximum and the minimum installation heights, in particular a distance of at least 5 mm, preferably between 5 and 15 mm, more preferably between 6 and 10 mm, can be provided. The angle of inclination between the upper side of the ribbed plate and the substrate or the underside of the frame can be at least 0.5°, preferably between 0.5° and 3°, more preferably between 1° and 2° and in particular 1.4° + / - 15%.

[0054] In the embodiment according to the invention, the first damping means extends with a support section across the height of the frame. In particular, the first damping means extends from the top of the frame to the bottom of the frame and, likewise, particularly preferably rests on the ground with the support section. Preferably, the first damping means protrudes from the top of the frame.

[0055] Furthermore, the support section can rest on the top side of the frame and / or, at least in some areas, directly against the top side of the frame. This allows the forces generated when the ribbed plate is loaded to be transferred into the frame and, via the frame, into the substructure. The first damping element also dampens the load on the ribbed plate and leads to a reduction in structure-borne sound.

[0056] According to the invention, an arrangement section of the first damping means is provided adjacent to the support section. The arrangement section is spaced from the underside of the support section and has a receptacle for arranging the ribbed plate. In particular, the arrangement section protrudes from the support section on the upper side and / or the underside of the further damping means protrudes from the underside of the arrangement section.

[0057] According to the invention, the ribbed plate has a circumferential support region at its edge, wherein the support region is arranged in the receptacle of the arrangement section of the first damping means. According to the invention, the support region of the ribbed plate encloses the recess of the ribbed plate. Thus, the support region can enable the transition between the first and the further damping means arranged in the recess.

[0058] In a further advantageous embodiment, it is provided that the inner longitudinal side of the frame facing the first damping means or the inner wall of the frame and / or the outer longitudinal side of the first damping means facing the inner longitudinal side of the frame lie directly against one another and / or extend at an angle α of 40° to 85°, preferably of 70° to 80°, to the underside of the frame. The aforementioned angle enables the forces occurring during loading to be optimally introduced into the frame and the substructure, preventing unwanted tension from occurring in the entire rail support device. If the angle α were formed at a right angle, this would result in a disadvantageous dissipation of the forces, whereby the inclined arrangement enables the forces to be introduced into the substructure in an efficient manner.The angle α faces away from the ribbed plate, so it is understood that a further angle (180° - α) exists between the inner longitudinal side of the frame facing the first damping means and / or the outer longitudinal side of the first damping means facing the inner longitudinal side of the frame and the underside of the frame, which faces the ribbed plate. The angle α is preferably at least substantially constant all the way around the frame or all the way around the ribbed plate.

[0059] Preferably, the longitudinal section of the inner longitudinal side of the first damping means facing the ribbed plate and / or the outer longitudinal side of the ribbed plate facing the first damping means, arranged directly on the longitudinal side of the ribbed plate, extends / extends at an angle β of 40° to 85°, preferably of 70° to 80°, to the underside of the frame. Like angle α, angle β also enables the aforementioned advantageous properties when loading the rail support device. Preferably, angles α and β are at least substantially equal, which enables the symmetry of the rail support device and can ensure optimized force introduction.

[0060] It is also preferably provided that the first damping means completely separates the ribbed plate from the frame along its circumference. The first damping means can also be formed circumferentially around the ribbed plate.

[0061] Advantageously, the rail can be attached to the ribs of the ribbed plate, preferably using appropriate tension clamps and threaded screws. Accordingly, clamping devices, in particular tension clamps, can be provided for fastening the rail. These clamps can be firmly connected to the ribbed plate using appropriate connecting means, such as threaded screws, thereby clamping the rail to the ribbed plate.

[0062] The frame, in turn, can be firmly screwed or force-fitted to the substrate using appropriate connecting elements, in particular threaded screws.

[0063] In addition, it can be provided that the frame and the damping means completely enclose the ribbed plate circumferentially.

[0064] In a further preferred embodiment, the ribbed plate and / or the recess and / or the first and / or the further damping means have an oval shape in cross-section, in particular the shape of an ellipse. In particular, the longitudinal axis of the ellipse of the ribbed plate, the recess and / or the damping means is arranged at least substantially at a right angle to the longitudinal axis of the rail.

[0065] The respective longitudinal axis is at least essentially in the direction of the greatest longitudinal extent of the respective body.

[0066] An orthogonal alignment of the longitudinal axis of the ellipse and the longitudinal axis of the rail makes it possible to arrange the rail on the rail bearing in such a way that the optimal damping properties can be provided and the rail is mounted safely and permanently.

[0067] Furthermore, in a further embodiment not claimed according to the invention, it can be provided that the first damping means extends with a support section over the height of the frame to the underside of the frame for resting on the subsurface. This inventive idea is proposed in particular independently of the further damping means to achieve the inventive object. A direct arrangement of the first damping means on the subsurface makes it possible to directly introduce the forces to be cushioned when the ribbed plates are loaded into the subsurface via the first damping means, thereby increasing the flexibility of use and further reducing the installation height of the entire rail support device.

[0068] This makes it possible to provide a larger amount of the first damping agent without having to significantly increase the installation height of the entire rail support structure. This allows for a reduction in the installation height. Furthermore, the damping properties of the rail support structure, and in particular of the "Cologne Egg," can be optimized.

[0069] Furthermore, it is expressly pointed out that all the intervals mentioned above and below include all intermediate intervals and individual values ​​contained therein and that these intermediate intervals and individual values ​​are to be regarded as essential to the invention, even if these intermediate intervals or individual values ​​are not specifically specified in detail.

[0070] Further features, advantages and possible applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawings and the drawings themselves. All described and / or illustrated features, individually or in any combination, form the subject matter of the present invention, regardless of their summary in the claims or their reference back to them.

[0071] It shows: Fig. 1 is a schematic cross-sectional view of a rail support device according to the invention in the installed state, Fig. 2 is a schematic plan view of a further embodiment of a rail support device according to the invention, Fig. 3 is a schematic plan view of a further damping means according to the invention, Fig. 4 is a schematic cross-sectional view along the section IV-IV of Fig. 3 , Fig. 5 a schematic cross-sectional view along section VV of Fig. 3 , Fig. 6 a schematic detailed view of the Fig. 4 shown details VI, Fig. 7 a schematic cross-sectional view of parts of a rail support device according to the invention, Fig. 8 a schematic plan view of a rail support device according to the invention without a rail, Fig. 9 a schematic cross-sectional view along the section IX-IX from Fig. 8 , Fig. 10 a schematic representation of a tooth plate according to the invention for arranging a frame fastening means, Fig. 11 a schematic detailed view of the Fig. 9 shown rail support device, Fig. 12 a schematic cross-sectional view of a further embodiment of a rail support device according to the invention, Fig. 13 a schematic perspective view of a rail support device according to the invention according to a further embodiment in the installed or installed state, Fig. 14 a schematic perspective view of a rail support device according to the invention in the uninstalled state, Fig. 15 a schematic perspective view of a ribbed plate according to the invention and of a further damping means according to the invention and Fig. 16 a schematic perspective view of a further embodiment of a ribbed plate according to the invention.

[0072] Fig. 1 shows a rail support device 1 for sound-damping support and fastening of a rail 2. The rail support device 1 has a ribbed plate 3, which in the illustrated embodiment comprises two ribs 28.

[0073] The rail bearing device 1 further comprises a first damping means 6, which can be designed in particular as an elastomer bearing, and a frame 7.

[0074] The Fig. 2 shows a schematic plan view of a rail storage device 1. From the Fig. 2 It can be seen that the first damping means 6 is arranged between the ribbed plate 3 and the frame 7.

[0075] The ribbed plate 3 serves to arrange the rail 2 on an upper side 4 of the ribbed plate 3.

[0076] In the Fig. 1 In the illustrated embodiment, the rail 2 is firmly attached, in particular clamped, to the ribbed plate 3. For this purpose, tension clamps 29 can be used, which are firmly connected to the ribbed plate 3 via threaded screws 30, which can be fastened with a nut 31. This is also evident from the schematic perspective view of the rail support device 1 according to the Fig. 13 und 14 visible.

[0077] In the Fig. 13 is a schematic representation of the braced rail 2 on the ribbed plate 3. To accommodate the threaded screw 30 and to arrange the tension clamps 29, the ribs 28 of the ribbed plate 3 can be perforated, as is the case with the Fig. 16 The breakthrough can be realized via an opening 39, wherein the opening 39 can serve for the arrangement of tension clamps 29 and threaded screws 30, as the schematic perspective representation of a ribbed plate 3 according to Fig. 16 clarified.

[0078] Finally, the rail 2 is fastened with its longitudinal axis G to the rail support device 1. In this case, it can be provided that the longitudinal axis L of the ribbed plate 3 runs at least substantially orthogonal to the longitudinal axis G of the rail 2. This is shown schematically in the Fig. 2 shown.

[0079] The Fig. 2 clarifies that the first damping means 6 circumferentially delimits the ribbed plate 3 at least substantially completely from the frame 7. Direct contact of the frame 7 with the ribbed plate 3 can be prevented by the arrangement of the first damping means 6.

[0080] In addition, the first damping means 6 can be firmly connected to the frame 7 and / or the ribbed plate 3, preferably by means of a material bond, in particular by vulcanization. The design of the first damping means 6 as an intermediate layer between the frame 7 and the ribbed plate 3 is also schematically shown in the Fig. 7 and the Fig. 9 and the Fig. 11 particularly vividly.

[0081] The Fig. 3 bis 6 show a further damping means 8. The further damping means 8 is arranged below the ribbed plate 3 for limiting deflection in a rail bearing device 1 according to the Fig. 1 Accordingly, the further damping means 8 is arranged in the Fig. 1 and the Fig. 2 not visible, since this is ultimately located below the ribbed plate 3. The relevant arrangement is shown schematically by the use of dashed lines in Fig. 8 and results from a corresponding bottom view of the ribbed plate 3, as shown schematically in the perspective view according to Fig. 15 is shown.

[0082] From the Fig. 7 , 9 und 10 The respective cross-sectional views shown also show the arrangement of the further damping means 8 below the ribbed plate 3.

[0083] It is understood that the further damping means 8 in the installed or built-in and / or mounted state is at least substantially completely covered on the upper side by the ribbed plate 3 and / or enclosed by the ribbed plate 3.

[0084] For the arrangement of the further damping means 8, the ribbed plate 3 can have a recess 21. The further damping means 8 can at least substantially cover the surface on the underside 5 of the ribbed plate 3 in the region of the recess 21 and / or completely abut the inner wall of the recess 21, as can be seen from the schematic perspective view of the Fig. 15 - but also from the Fig. 7 - emerges.

[0085] The rail support device 1 can be arranged on a base 37. The frame 7 can at least substantially lie directly against the base 37. The ribbed plate 3 is spaced apart from the base 37 in the installed state, as can also be seen schematically from the Fig. 7 and 9 becomes apparent.

[0086] It is not shown that in a further embodiment the further damping means 8 is provided for resting on the base 37 in the unloaded state, wherein a distance can be provided between the further damping means 8 and the underside 5 of the ribbed plate 3 to limit deflection.

[0087] The frame 7 can be connected to the base 37 via frame fastening means 35. For this purpose, appropriate screws or the like can be used for the fixed arrangement. In the schematic perspective view according to Fig. 14 It is shown that a firm connection is achieved by a corresponding toothing, which can be provided both on the frame fastening means 35 and complementarily on the frame 7. The tooth plate 36 used in this connection is also shown schematically in the Fig. 10 shown in more detail.

[0088] The frame 7 may have a recess 9 for arranging the first damping means 6 and the ribbed plate 3, as shown schematically in Fig. 9 In particular, the recess 9 serves to accommodate the first damping means 6, wherein the first damping means 6 rests circumferentially on the inner wall 10 (namely the inner longitudinal side 24 of the frame 7) of the recess 9, preferably being firmly connected thereto, in particular by a material fit, preferably vulcanized thereto.

[0089] The rail support device 1 is used to reduce structure-borne noise.

[0090] This results in an at least substantially oval basic shape of the rail support device 1 or the ribbed plate 3 and the first damping means 6, as can be seen from the schematic perspective views according to Fig. 13 und 14 emerges.

[0091] In Fig. 7 It is shown that the additional damping means 8 is adjacent to, and in particular bears against, the underside 5 of the ribbed plate 3. The additional damping means 8 can be connected to the underside 5 of the ribbed plate 3, in particular by means of a material bond, preferably via vulcanization.

[0092] The Fig. 3 bis 6 The additional damping means 8 shown may comprise or consist of natural rubber as its material. In embodiments not shown in detail, an elastomer may also be provided as the material, in particular a synthetic rubber.

[0093] The first damping means 6 can also comprise a natural rubber or a rubber-elastic material or an elastomer, in particular a synthetic rubber, as material.

[0094] In the illustrated embodiments, both the first and the further damping means 6, 8 are made of natural rubber. In However, in further embodiments it can be provided that the material of the first damping means 6 differs from the material of the further damping means 8.

[0095] The Fig. 4 The further damping means 8 shown has a Shore A hardness of 50. In further embodiments, the Shore A hardness of the further damping means 8 can be between 45 and 60.

[0096] The Shore hardness of the first damping agent 6 can also be between 45 and 60 (Shore A).

[0097] The first damping means 6 can have the same hardness or a different hardness compared to the further damping means 8.

[0098] In the unloaded state of the rail support device 1, a distance 38 between the base 37 or the plane spanned by the underside 18 of the frame 7 and the underside 13 of the further damping means 8 can be between 1.5 and 2.5 mm.

[0099] The deflection limitation, which results when the ribbed plate 3 is loaded due to deflection of the material of the further damping means 8, can in particular be 2 mm + / - 20%.

[0100] This can result in a total deflection limitation of between 3 and 6 mm, preferably around 4 mm.

[0101] In Fig. 3 und 4 It is shown that the further damping means 8 has a plurality of projections 12. In the illustrated embodiment, the projections 12 are designed as knobs. The projections 12 protrude from a base surface 11 facing the underside 5 of the ribbed plate 3. The base surface 11 is shown in more detail in Fig. 4 According to the Fig. 4 bis 6 In the illustrated embodiments, the projections 12 are formed as solid bodies. In particular, the projections 12 are at least substantially structurally identical to one another. In further, not illustrated embodiments, different shapes of the projections 12 may be provided.

[0102] In the illustrated embodiment, the projections 12 are firmly connected to the base surface 11, in particular formed in one piece therewith.

[0103] In particular, between 2 and 10 projections 12, preferably between 5 and 10, are provided. The projections 12 can extend over at least 50% of the surface of the base area 11, as can be seen schematically from the Fig. 3 emerges.

[0104] The Fig. 4 shows that the projections 12 have an at least substantially conical or truncated cone shape. Not shown in more detail is the fact that the projections 12 can also have at least substantially a cylindrical shape.

[0105] In the Fig. 4 In the illustrated embodiment, the conical shape of the projections tapers conically from the base surface 11 to the underside 13 of the further damping means 8. The corresponding taper angle γ can be between 5° and 25°, preferably between 12° and 18°.

[0106] The Fig. 3 shows that a plurality of projections 12, in the illustrated embodiment three projections 12, are provided in two spaced-apart rows. The projections 12 arranged in the rows are at least substantially equally spaced from each other and each adjoin the outer edge of the damping means 8, as is also the case with the Fig. 15 Two further projections 12 are formed according to the Fig. 3 and in Fig. 15 illustrated embodiment in the frontal areas of the further damping means 8.

[0107] The material thickness 14 of the base surface 11 of the further damping means 8 can correspond to between 5% and 20%, in particular between 10% and 15%, of the maximum height 15 of the projections 12, as is also shown schematically in the Fig. 4 shows.

[0108] The rail support device 1 can have a maximum installation height of 33, as shown in Fig. 1 shown, of at least 40 mm and in particular between 50 and 60 mm. Since the upper side 4 of the ribbed plate 3 can run obliquely to the underside 18 of the frame 7 or obliquely to the base 37, a minimum installation height 34 can also be provided. The minimum installation height 34 can be in a range of 5 to 15 mm from the maximum installation height 33 in the Fig. 1 The angle of inclination may vary from the illustrated embodiment and may in particular be between 40 and 50 mm. The angle of inclination created by the inclination of the upper side 4 relative to the substrate 37 or the underside 18 of the frame 7 may be between 0.5° and 3° and in particular 1.4° + / - 20%.

[0109] The Fig. 7 and 9show that the first damping means 6 extends with a support section 16 over the height 17 of the frame 7. The first damping means 6 extends to the underside 18 of the frame 7 and at the same time extends beyond the top side of the frame 7 or protrudes from the top side 19 of the frame 7, as the Fig. 7 clarified.

[0110] The edition section 16, as it is in Fig. 11 shown, can be supported on the upper side 19 of the frame 7 and / or at least partially lie directly against the upper side 19 of the frame 7.

[0111] Fig. 11 shows that an arrangement section 20 of the first damping means 6 is provided, which is adjacent to the support section 16 and is spaced from the underside of the support section 16 and has a receptacle 23 for arranging the ribbed plate 3. The arrangement section 20 can protrude from the top of the support section 16, as shown in the Fig. 11 also clarified.

[0112] In addition, the underside 13 of the further damping means 8 can protrude from the underside of the arrangement section 8, as also from Fig. 11 becomes apparent.

[0113] The ribbed plate 3 can have a circumferential support region 22 on the edge side, wherein the support region 22 is arranged in the receptacle 23 of the arrangement section 20 of the first damping means 6, in particular wherein the support region 22 of the ribbed plate 3 encloses the recess 21 of the ribbed plate 3, as is also shown schematically in the Fig. 11 shows.

[0114] The inner longitudinal edge or longitudinal side 24 of the frame 7 facing the first damping means 6 and / or the outer longitudinal side 25 of the first damping means 6 facing the inner longitudinal side 24 of the frame 7 can lie directly against each other and / or at an angle α, as shown in Fig. 9 shown, from 40° to 85° and in particular from 70° to 80°, to the underside 18 of the frame 7.

[0115] Fig. 9 also illustrates that the inner longitudinal side 26 of the first damping means 6 and / or the outer longitudinal side 27 of the ribbed plate 3 facing the first damping means 6 extend at an angle β of 40° to 85°, in particular of 70° to 80°, to the underside 18 of the frame 7.

[0116] The angles α and β can be formed at least substantially equal to one another. The angle α is facing away from the ribbed plate 3 and the angle β is also facing away from the ribbed plate 3. Due to this angular formation, the inner longitudinal side 24 of the frame, the outer longitudinal side 25 of the first damping means 6, the inner longitudinal side 26 of the first damping means 6 and / or the outer longitudinal side 27 of the ribbed plate 3 can run at least substantially parallel to one another, as can be seen schematically from the Fig. 9 is evident.

[0117] Preferably, the frame 7, the first damping means 6, the ribbed plate 3 and the further damping means 8 are firmly connected to one another, in particular wherein the metal parts formed by the frame 7 and the ribbed plate 3 are connected by vulcanization of the first and further damping means 6, 8.

[0118] The elliptical cross-sectional shape (seen in plan view) of the ribbed plate 3 and / or the recess 9 and / or the first and / or further damping means 6, 8 can be particularly clearly Fig. 2 The longitudinal axis L of the ellipse of the ribbed plate 3, the recess 9 and / or the damping means 6, 8 can be arranged at least substantially at right angles to the longitudinal axis G of the rail 2.

[0119] In addition, the figures also show a further embodiment of the rail support device 1, as it is particularly known from Fig. 7 emerges.

[0120] As previously explained, the rail support device 1 serves for the sound-damping support and fastening of a rail 2. The rail support device 1 can have a ribbed plate 3 for arranging the rail 2, and a first damping means 6 on an upper side 4 of the ribbed plate 3. The first damping means 6 can preferably be designed as an elastomer bearing and / or comprise a natural rubber as the material. The first damping means 6 can be arranged between the ribbed plate 3 and the frame 7. In this embodiment, it can also be provided that the first damping means 6 extends with a support section 16 over the height 17 of the frame 7 to the underside 18 of the frame 7 for resting on the substrate 37, as can be seen from Fig. 7 schematically.

[0121] Thus, the first damping means 6 is supported on a base 37 even in the unloaded state of the rail bearing device 1 and is arranged at least substantially directly on the base 37. Bezugszeichenliste:

[0122] 1Rail support device 2Rail 3Rib plate 4Top of 3 5Bottom of 3 6First damping means 7Frame 8Further damping means 9Recess of 7 10Inner wall of 9 11Base area of ​​8 12Protrusion 13Bottom of 8 14Material thickness of 11 15Height of 12 16Support section of 6 17Height of 7 18Bottom of 7 19Top of 7 20Arrangement section of 6 21Recess of 3 22Support area of ​​3 23Receptacle of 16 24Inner long side of 7 25Outer long side of 6 26Inner long side of 6 27Outer long side of 3 28Rib of 3 29Tension clamps 30Threaded screws 31Nut 32Distance 33Maximum installation height 34Minimum installation height 35Frame fastening means 36Tooth plate 37Substrate 38Distance 39Opening LLongitudinal axis of 3 GLongitudinal axis of 2 αangle βangle γangle

Claims

1. Rail mounting device (1) for the sound-absorbing mounting and fastening of a rail (2), having a ribbed plate (3) for arranging the rail (2) on an upper side of the ribbed plate (3), a first damping means (6), preferably an elastomer bearing, and a frame (7), the first damping means (6) being arranged between the ribbed plate (3) and the frame (7), wherein a further damping means (8) is provided below the ribbed plate (3) to limit deflection, wherein a recess (21) for receiving the further damping means (8) is provided on the underside (5) of the ribbed plate (3), wherein the first damping means (6) extends with a support section (16) over the height (17) of the frame (7), wherein an arrangement section (20) of the first damping means (6) adjoining the support section (16) is provided, which is spaced from the underside of the support section (16) and has a receptacle (23) for the arrangement of the ribbed plate (3), characterized in that the ribbed plate (3) has a peripheral support region (22) on the edge, the support region (22) being arranged in the receptacle (23) of the arrangement section (20) of the first damping means (6), and the support region (22) of the ribbed plate (3) enclosing the recess (21) of the ribbed plate (3).

2. Rail mounting device according to claim 1, characterized in that the further damping means (8) adjoins the underside (5) of the ribbed plate (3), in particular rests against it, and / or is connected to it, preferably is connected by a material bond, particularly preferably is vulcanized on, or in that the further damping means (8) is provided for resting on the base (37) and is spaced apart from the underside (5) of the ribbed plate (3).

3. Rail mounting device according to one of the preceding claims, characterized in that the first damping means (6) and / or the further damping means (8) comprises and / or consists of an elastomer, in particular a synthetic rubber, and / or an elastic, preferably rubber-elastic, material, preferably natural rubber (NR).

4. Rail mounting device according to one of the preceding claims, characterized in that the first damping means (6) has at least substantially the same or a different material compared to the material of the further damping means (8) and / or consists thereof and / or in that the first damping means (6) has at least substantially the same hardness or a different hardness compared to the hardness of the further damping means (8) and / or in that the further damping means (8) has a Shore hardness-A of between 40 and 80, preferably between 45 and 60, more preferably of 50 + / - 20%.

5. Rail mounting device according to one of the preceding claims, characterized in that the further damping means (8) has a plurality of projections (12) formed in particular as knobs, in particular wherein the projections (12) project from a base surface (11) facing the underside (5) of the ribbed plate (3) and / or in particular wherein the projections (12) are formed at least partially, preferably completely, as solid bodies and / or in particular wherein the projections (12) are firmly connected to the base surface (11) and / or are formed integrally with the base surface (11).

6. Rail mounting device according to one of the preceding claims, characterized in that between 2 to 30, more preferably between 3 to 20, more preferably between 4 to 10, projections (12) are provided and / or that the projections (12) extend over at least 10%, preferably between 10% to 90%, more preferably between 20% to 80% of the surface of the base surface (11).

7. Rail mounting device according to one of the preceding claims, characterized in that the projections (12) have an at least substantially cylindrical and / or at least substantially conical, preferably frustoconical, shape, in particular wherein the projections (12) taper conically from the base surface (11) towards the underside (13) of the further damping means (8).

8. Rail mounting device according to one of the preceding claims, characterized in that the rail bearing device (1) has a maximum installation height, in particular from the underside (18) of the frame (7) to the upper side (4) of the ribbed plate (3), of at least 40 mm, in particular between 40 and 70 mm, further preferably between 50 and 60 mm9. Rail mounting device according to one of the preceding claims, characterized in that the first damping means (6) extends with a support section (16) to the underside (18) of the frame (7) and preferably projects from the top of the frame (7), facing the rail (2), in particular wherein the support section (16) is supported on the upper side (19) of the frame (7) and / or bears directly against the upper side (19) of the frame (7) at least in certain regions.

10. Rail mounting device according to one of the preceding claims, characterized in that the arrangement section (20) projects on the upper side with respect to the support section (16) and / or in that the underside (13) of the further damping means (8) projects with respect to the underside of the arrangement section (20).

11. Rail mounting device according to one of the preceding claims, characterized in that the frame (7) has a recess (9) for arranging the first damping means (6) and the ribbed plate (3), in particular wherein the recess (9) is designed to receive the first damping means (6) and / or in particular wherein the first damping means (6) bears circumferentially against the inner wall (10) of the recess (9) and / or against the inner longitudinal side (24) of the frame (7), preferably is firmly connected thereto, in particular in a materially bonded, preferably vulcanized-on manner.

12. Rail mounting device according to one of the preceding claims, characterized in that the ribbed plate (3) and / or the recess (9) and / or the first and / or further damping means (6, 8) have an oval shape in cross-section, in particular the shape of an ellipse, in particular wherein the longitudinal axis (L) of the ellipse of the ribbed plate (3), the recess (9) and / or the damping means (6, 8) is arranged at least substantially at right angles to the longitudinal axis (G) of the rail (2).

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