Rail bearing device for sound-absorbing mounting of a rail

Abstract

Rail bearing 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), wherein a further damping element (8) is provided below the ribbed plate (3) for limiting deflection, wherein the further damping element (8) has a plurality of projections (12), in particular designed as knobs, wherein the projections (12) protrude from a base surface (11) facing the underside (5) of the ribbed plate (3), and wherein a recess (21) for receiving the further damping element (8) is provided on the underside (5) of the ribbed plate (3), wherein the recess (21) is designed such thatthat in the unloaded state of the rail bearing device (1) the underside (13) of the further damping element (8) is spaced away from the substrate.

Description

[0001] The present invention relates to a rail mounting device for sound-absorbing mounting and fastening of a rail, comprising a ribbed plate for arranging the rail on a top surface of the ribbed plate, a first damping element, and a frame. The first damping element 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. One particularly well-known type of such rail support device 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 located next to or above railway lines. The name "Cologne Egg" derives both from the oval shape of the rail support device used in practice and from the city of Cologne, as this type of fastening system was first developed and implemented in Cologne.

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

[0004] Both the ribbed plate and the frame can be made of metal, with these two metal parts being joined together by vulcanization, namely through or via the first damping agent.

[0005] The frame can be fitted with lugs with holes for fastening to the substrate using sleeper screws or threaded inserts. The ribbed plate can be supported by the first damping element, which is preferably a vulcanized elastomer. The first damping element, in turn, can rest on the frame. This design of the rail support device results in vertical forces being distributed into shear and compression components. This is the basis for the acoustic effectiveness of the so-called "Cologne Egg" (a type of track support).

[0006] The well-known design of the "Cologne Egg" type rail support device has a maximum installation height of at least approximately 76 mm. For the purposes of the present invention, the installation height is defined as the distance from the underside of the frame to the top surface of the ribbed plate, whereby the ribs or the height of the ribs of the ribbed plate are not considered when determining the installation height. Since it is also known from practical experience that the top surface of the ribbed plate is inclined to the substrate and / or to the underside of the frame, the maximum installation height is understood to be the installation height at the highest point of the top surface of the ribbed plate.

[0007] However, in practice, the height of the "Cologne Egg" presents a problem: it cannot be easily integrated into existing rail support systems, as these often require a lower profile. Therefore, when using the "Cologne Egg," it is regularly necessary to prepare or excavate the subsoil in these sections to compensate for the increased height. This process is not only time-consuming but also results in high commissioning costs for the "Cologne Egg."

[0008] The object of the present invention is to avoid the aforementioned disadvantages of the prior art or at least to substantially reduce them.

[0009] The aforementioned problem is solved according to the invention by a rail bearing device for sound-absorbing bearing and fastening of a rail according to claim 1.

[0010] According to the invention, the rail support device comprises a ribbed plate for arranging the rail on its upper surface. For arranging the rail on its upper surface, the ribbed plate can have at least two ribs between which the rail can be held. According to the invention, the rail support device further comprises a first damping element, which is in particular designed as an elastomer bearing or as an elastic bearing, especially a rubber-elastic bearing. The rail support device also comprises a frame, which in particular delimits the rail support device on its outer surface. The first damping element is arranged between the ribbed plate and the frame. In particular, the first damping element separates the ribbed plate from the frame, preferably completely and / or circumferentially.

[0011] Furthermore, according to the invention, a further damping means is provided below the ribbed plate to limit the deflection.

[0012] The additional damping element can be provided and arranged separately from the first damping element. However, in further embodiments according to the invention, it is also possible for the additional damping element to be connected to the first damping element.

[0013] The additional damping element is designed in such a way as to ensure a limitation of the spring travel. In the prior art, the spring action or damping of the "Cologne Egg" is provided solely by the first damping element. Due to the arrangement and design of the first damping element in the prior art, a certain height and width must be provided to ensure the damping properties necessary for reducing structure-borne noise. According to the invention, it is now possible that not only the first damping element can be used to reduce structure-borne noise and limit spring travel. The additional damping element can also contribute to or at least partially ensure these damping properties.

[0014] According to the invention, this offers the significant advantage that it is possible to reduce the dimensions, in particular the height and / or width or material thickness, of the first damping element – ​​without, however, causing any disadvantages with regard to the sound-reducing properties of the “Cologne Egg”. According to the invention, the structure-borne noise reduction achieved by the known “Cologne Egg” can be maintained or even improved.

[0015] By providing an additional damping means, the essential advantage according to the invention is that the overall height can be significantly reduced compared to rail bearing devices of the “Cologne egg” system known from the prior art, preferably by at least 10%.

[0016] Furthermore, such a reduction in installation height offers the advantage that it is possible to use rail support devices based on the "Cologne Egg" system even in sections and / or areas that require an installation height of less than 76 mm due to the existing rail support system. Accordingly, complex preparation of the substrate is unnecessary, allowing the rail support device according to the invention to be integrated relatively easily into existing rail support systems. This increases the flexibility of the "Cologne Egg" and also makes it possible to integrate the "Cologne Egg" into a wide variety of existing rail support systems, which was not possible before the invention due to the inherently higher installation height of the "Cologne Egg" known from the prior art.

[0017] In this context, the compression limiter ensures, in particular, that the ribbed plate can only lower to a certain height, which, according to the invention, is understood as a compression limiter. This distance or this variable height difference of the compression limiter can result, on the one hand, from the material properties of the first damping element and / or the further damping element, and on the other hand, from a distance between the underside of the further damping element and the substrate.

[0018] Ultimately, with such a gap between the underside of the additional damping element and the substrate, this gap would first have to be bridged, followed by compression of the material of the additional damping element. In this context, it is understood that the first damping element also provides damping when the ribbed plate is loaded, thus ensuring the spring characteristics. Therefore, the first damping element, in addition to the additional damping element, also contributes significantly to limiting the spring deflection.

[0019] According to the invention, a deflection limiter can be provided, in particular in the range of 1 to 15 mm, preferably between 2 and 10 mm, and especially of 4 mm ± 1 mm. Such a deflection limiter enables effective and reliable damping of structure-borne noise and thus contributes to the stability of buildings located near the rail. However, it does not guarantee an arbitrarily high degree of deflection; rather, the deflection limiter makes it possible to reduce this deflection to levels proven effective in practice.

[0020] Accordingly, according to the invention, the rail bearing device can be used with the same or improved structure-borne noise reduction properties as the "Cologne egg" known from the prior art, but in particular ensures a lower installation height.

[0021] The rail bearing 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 element, the first damping element, the ribbed plate, and the frame are firmly connected to one another, especially by a material bond, preferably by vulcanization of the damping elements. This allows this assembly to be handled as a compact, cohesive unit, thus avoiding errors during the assembly of the rail bearing device.

[0022] Preferably, the frame has a recess for arranging the first damping element and the ribbed plate. The recess can be designed as a through-hole. In particular, the recess serves to receive the first damping element, especially wherein the first damping element rests circumferentially against the inner wall of the recess, preferably being firmly connected to it, preferably being vulcanized to it. Such vulcanization makes it possible to handle the frame and the first damping element as a single assembly, as already explained at the outset.

[0023] In a particularly preferred embodiment of the present invention, the additional damping element is adjacent to, and in particular abuts, the underside of the ribbed plate and / or is connected to it. In particular, the additional damping element can be metallurgically bonded to the underside of the ribbed plate. Preferably, the additional damping element is vulcanized to the underside of the ribbed plate at least partially, and preferably completely.

[0024] Alternatively, the additional damping element can be provided for contact with the substrate and spaced apart from the underside of the ribbed plate. In such an embodiment, the overall deflection limitation achieved is determined, firstly, by the material of the damping element and, secondly, by the distance or gap between the upper surface of the additional damping element and the underside of the ribbed plate.

[0025] If the additional damping element is connected to and / or positioned against the underside of the ribbed plate, the achieved deflection limitation is determined in particular by the distance between the underside of the additional damping element and the material properties of the additional damping element(s), as has already been explained at the outset.

[0026] Furthermore, in a preferred embodiment of the invention, the first damping element and / or the further damping element comprises an elastomer, in particular a synthetic rubber, and / or an elastic, preferably rubber-elastic, material. The elastic, in particular rubber-elastic, material may in particular be natural rubber (NR). Preferably, the further damping element consists of natural rubber.

[0027] The provision of the first damping element and the further damping element according to the invention makes it possible to individually adjust the damping or spring properties of the rail bearing device to different applications. Such adjustment can also be achieved by selecting the appropriate material for the damping elements.

[0028] In this context, different combinations are possible, ensuring a high degree of flexibility in the damping achieved when using the rail bearing device.

[0029] The materials of the first damping element and the second damping element can be essentially identical. Alternatively, the first damping element can be made of a different material than the second damping element. For example, the first damping element could be an elastomer, particularly a synthetic rubber, whereas the second damping element could be made of natural rubber. Different material additives are also conceivable for the first and second damping elements according to the invention.

[0030] Preferably, the first damping material has at least substantially the same hardness or a different hardness compared to the hardness of the second damping material. Adjusting the hardnesses can also ensure that specific damping properties of the first and second damping materials are guaranteed and thus utilized – each for the optimal application and for improved rail support.

[0031] The additional damping element preferably has a Shore A hardness (especially according to DIN EN ISO 868 and / or DIN ISO 7619, September 2022 edition) between 40 and 80, preferably between 45 and 50, and particularly between 50 ± 20%. The aforementioned Shore hardnesses enable a rubber-elastic design of the additional damping element while simultaneously limiting the deflection of the ribbed plate.

[0032] 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 through the “Cologne Egg” also in the rail bearing device according to the invention, which is preferably to be regarded as a further development of the “Cologne Egg”.

[0033] Preferably, a recess is provided on the underside of the ribbed plate to receive the additional damping element. In particular, the recess is designed such that, in the unloaded state of the rail bearing device, the underside of the additional damping element is spaced away from the substrate, or a gap is provided, preferably by at least 0.5 mm, more preferably between 1 and 10 mm, and more preferably between 1.5 and 2.5 mm.

[0034] The recess may be designed to be complementary – in terms of dimensions – to the additional damping element. Preferably, the additional damping element projects at least partially beyond the recess and thus beyond the ribbed plate.

[0035] The additional damping material can, in particular, at least substantially fill the entire surface of the recess in the ribbed plate.

[0036] The recess can be provided, in particular, by appropriate machining of a ribbed plate already known from the prior art, thus enabling the adaptation of a known ribbed plate for use in a rail bearing device according to the invention. Ribbed plates with a corresponding recess can also be manufactured at the factory.

[0037] In a preferred embodiment, the additional damping element has a plurality of projections, in particular shaped as knobs. In particular, the projections can extend beyond or project from a base surface facing the underside of the ribbed plate. The projections can, in particular, extend beyond the recess.

[0038] Alternatively or additionally, the projections can be designed at least partially, preferably completely, as solid bodies. Designing them as solid bodies allows for optimal damping properties for the rail bearing system.

[0039] The design of the projections, particularly through their spacing from one another, allows the projections to compress under appropriate load on the ribbed plate, thus enabling load transfer, especially when the underside of the projections is already in contact with the substrate or when the top surface of the base abuts the underside of the ribbed plate. Whether the underside of the projections abuts the substrate or the top surface of the base abuts the underside of the ribbed plate depends on whether the base is rigidly connected to the underside of the ribbed plate or not. The projections and their spacing thus ensure that the material can expand appropriately under load and provide the deflection limitation according to the invention, particularly without causing material stress on the ribbed plate or the frame.

[0040] Preferably, the projections can also be firmly connected to the base plate and / or formed as one piece with it.

[0041] The protrusions can be essentially identical in design or different from one another. An identical arrangement allows for the relatively simple and cost-effective production of the additional damping element, ensuring optimal damping properties.

[0042] In particular, the substrate is formed by the plane spanned from the underside of the frame facing away from the rail - especially in the unloaded state of the rail support device.

[0043] Preferably, the additional damping element has between 2 and 30, more preferably between 3 and 20, and more preferably between 4 and 10, projections. Alternatively or additionally, the projections can extend over at least 10%, preferably between 10% and 90%, more preferably between 20% and 40%, and particularly between 30% and 70% of the surface of the base. Because the projections do not extend over the entire surface of the base, spacing between them is ensured. The distance between two immediately adjacent projections can vary and, in particular, be adjusted according to the desired damping characteristics.

[0044] In a particularly advantageous embodiment of the invention, the projections are provided to have a shape that is at least substantially cylindrical and / or at least substantially conical, preferably frustoconical. The conical shape offers the advantage that excessive widening can be prevented when the projections are subjected to a corresponding material expansion. Finally, tests conducted during the development of the invention have shown that the conical shape ensures optimal damping properties for the additional damping element when used in the rail bearing device. In this context, the projections may be designed to taper conically from the base surface towards the underside of the additional damping element, which faces the substrate.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. This allows for the compensation of material expansion of the projections when they are subjected to a load.

[0045] Preferably, the damping element may have projections arranged in rows, and projections may also be arranged outside of a row. Projections arranged in rows may, in particular, have at least substantially the same spacing between them. Alternatively or additionally, it may be provided that, in the case of multiple rows, the rows are equidistant from one another. It may also be provided that, for example, at least three projections are arranged in at least two rows, and further projections are provided outside of these rows, whereby, in particular, a constant distance is not maintained between each pair of immediately adjacent projections. Finally, the projections may be arranged on the base surface in such a way as to achieve optimal damping behavior of the further damping element.

[0046] The thickness of the base surface can also be determined based on the height of the projections. The material thickness of the base surface of the additional damping element can be at least 1%, preferably between 1% and 60%, more preferably between 5% and 20%, and particularly 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 tailor the deflection limitation to the needs and requirements of the respective installation situation.

[0047] In a particularly advantageous embodiment of the present invention, the rail bearing device has a maximum installation height of at least 40 mm, preferably between 40 and 70 mm, and more preferably between 50 and 60 mm. The installation height can be provided according to customer specifications. As explained above, 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).

[0048] Furthermore, it is understood that the top surface of the ribbed plate, when mounted, may also be angled relative to the ground and / or the underside of the frame. In this context, the maximum installation height refers to the greatest height.

[0049] In particular, the minimum installation height (i.e., the lowest installation height) in the assembled state can be, according to the invention, at least 30 mm, more preferably between 30 and 60 mm, and more preferably between 40 and 50 mm. The difference between the minimum and maximum installation heights can vary depending on the size or length of the rail support device. A difference of at least 5 mm, more preferably between 5 and 15 mm, and more preferably between 6 and 10 mm, can be provided between the maximum and minimum installation heights. The angle of inclination between the top of the ribbed plate and the substrate or the underside of the frame can be at least 0.5°, more preferably between 0.5° and 3°, more preferably between 1° and 2°, and more preferably 1.4° ± 15%.

[0050] In a further preferred embodiment, the first damping element extends over the height of the frame with a bearing section. In particular, the first damping element extends from the top of the frame to the bottom of the frame and, more preferably, rests on the substrate with its bearing section. Preferably, the first damping element projects away from the frame on its upper side.

[0051] Furthermore, the support section can rest on the top of the frame and / or at least partially in direct contact with the top of the frame. This allows the forces occurring when the ribbed plate is loaded to be transferred into the frame and then, via the frame, into the substrate. The first damping element also dampens the load on the ribbed plate and leads to a reduction in structure-borne noise.

[0052] Preferably, an assembly section of the first damping element is provided adjacent to the support section. This assembly section can be spaced apart from the underside of the support section and may have a receptacle for arranging the ribbed plate. In particular, the assembly section projects upwards from the support section and / or the underside of the further damping element projects beyond the underside of the assembly section.

[0053] Preferably, the ribbed plate has a circumferential support area at its edge, wherein the support area is arranged in the receptacle of the arrangement section of the first damping element. In particular, the support area of ​​the ribbed plate encloses the recess of the ribbed plate. Thus, the support area can facilitate the transition between the first and the subsequent damping element, which is arranged in the recess.

[0054] In a further advantageous embodiment, the inner longitudinal side of the frame facing the first damping element, or the inner wall of the frame, and / or the outer longitudinal side of the first damping element facing the inner longitudinal side of the frame, are in direct contact with each other and / or run at an angle α of 40° to 85°, preferably 70° to 80°, to the underside of the frame. This angle allows the forces occurring under load to be optimally transferred into the frame and the substrate, preventing unwanted stresses in the entire rail support system. If the angle α were right-angled, the forces would be transferred in a disadvantageous manner, whereas the inclined arrangement enables the forces to be efficiently transferred into the substrate.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 element and / or the outer longitudinal side of the first damping element facing the inner longitudinal side of the frame, and the underside of the frame facing the ribbed plate. Angle α is preferably formed as being at least substantially constant around the frame or around the ribbed plate.

[0055] Preferably, the longitudinal section of the inner longitudinal side of the first damping element facing the ribbed plate, and / or the outer longitudinal side of the ribbed plate facing the first damping element, is arranged directly on the longitudinal side of the ribbed plate and runs at an angle β of 40° to 85°, preferably 70° to 80°, to the underside of the frame. Like the angle α, the angle β also enables the aforementioned advantageous properties when the rail bearing assembly is loaded. Preferably, the angles α and β are at least substantially equal, which ensures symmetry in the rail bearing assembly and optimizes force transmission.

[0056] It is also preferred that the first damping element completely separates the ribbed plate from the frame around its entire circumference. The first damping element can also be formed around the entire circumference of the ribbed plate.

[0057] Advantageously, the rail can be attached to the ribs of the ribbed plate, preferably using appropriate clamps and threaded screws. Accordingly, clamping devices, in particular clamps, can be provided for attaching the rail, which can be firmly connected to the ribbed plate by suitable fasteners, such as threaded screws, thereby clamping the rail to the ribbed plate.

[0058] The frame, in turn, can be firmly screwed to the substrate or positively connected by means of appropriate fasteners, in particular threaded screws.

[0059] Furthermore, it may be provided that the frame and the damping element completely enclose the ribbed plate.

[0060] In a further preferred embodiment, the ribbed plate and / or the recess and / or the first and / or the subsequent damping element have an oval cross-sectional shape, 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 element is arranged at least substantially at right angles to the longitudinal axis of the rail.

[0061] The respective longitudinal axis is always at least essentially in the direction of the greatest longitudinal extent of the respective body.

[0062] 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 securely and permanently supported.

[0063] Furthermore, according to the invention, the problem can also be solved, in particular, by the first damping element extending with a bearing section over the height of the frame to the underside of the frame for contact with the substrate. This inventive idea is proposed, in particular, independently of the further damping element for solving the problem according to the invention. A direct arrangement of the first damping element on the substrate makes it possible to directly transfer the forces to be absorbed when the ribbed plates are loaded into the substrate via the first damping element, thereby increasing the application flexibility and also reducing the overall height of the rail support system.

[0064] It is not known from the prior art that the first damping element extends to the underside of the frame or to the ground when the rail bearing assembly is unloaded. It is only known from the prior art that the first damping element contacts the ground when the ribbed plate is already subjected to a load that needs to be cushioned or damped in the installed state.

[0065] In this context, it is understood that the second embodiment of the rail bearing device according to the invention can be provided in combination with at least one of the aforementioned embodiments, which is particularly preferred. Therefore, reference can be made to the aforementioned advantages and preferred embodiments, which also apply to the further embodiment of the rail bearing device according to the invention, without requiring further explicit mention.

[0066] Ultimately, the arrangement of the first damping element on the substrate in the installed state of the rail support system has an independent significance according to the invention. This arrangement allows for a larger quantity of the first damping element to be provided without significantly increasing the overall height of the rail support system. This enables a reduction in the overall height. Furthermore, this allows for the optimization of the damping properties of the rail support system and, in particular, of the "Cologne Egg" (a type of support).

[0067] Furthermore, it is expressly pointed out that all the aforementioned and subsequent intervals 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.

[0068] Further features, advantages, and applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing and the drawing itself. All features described and / or illustrated, individually or in any combination, constitute the subject matter of the present invention, irrespective of their compilation in the claims or their cross-reference.

[0069] It shows: Fig. 1 a schematic cross-sectional view of a rail bearing device according to the invention in the installed state, Fig. 2 a schematic top view of a further embodiment of a rail bearing device according to the invention, Fig. 3 a schematic top view of a further damping means according to the invention, Fig. 4 a schematic cross-sectional view along section IV-IV from Fig. 3, Fig. 5 a schematic cross-sectional view along section VV from Fig. 3, Fig. 6 a schematic detail view of the in Fig. 4 details shown VI, Fig. 7 a schematic cross-sectional view of parts of a rail bearing device according to the invention, Fig. 8 a schematic top view of a rail bearing device according to the invention without rail, Fig. 9 a schematic cross-sectional view along section IX-IX from Fig. 8, Fig. 10 a schematic representation of a toothed plate according to the invention for arranging a frame fastening means, Fig. 11 a schematic detail view which is in Fig. 9 shown rail storage device, Fig. 12 a schematic cross-sectional view of a further embodiment of a rail bearing device according to the invention, Fig. 13 a schematic perspective representation of a rail bearing device according to the invention in a further embodiment in the installed or fitted state, Fig. 14 a schematic perspective representation of a rail bearing device according to the invention in its uninstalled state, Fig. 15 a schematic perspective representation of a ribbed plate according to the invention and of a further damping means according to the invention and Fig. 16 a schematic perspective representation of a further embodiment of a ribbed plate according to the invention.

[0070] Fig. Figure 1 shows a rail bearing device 1 for sound-absorbing bearing and fastening of a rail 2. The rail bearing device 1 has a ribbed plate 3 which, in the illustrated embodiment, comprises two ribs 28.

[0071] The rail bearing device 1 further comprises a first damping element 6, which may in particular be designed as an elastomer bearing, and a frame 7.

[0072] The Fig. Figure 2 shows a schematic top view of a rail bearing device 1. From the Fig. Figure 2 shows that the first damping element 6 is arranged between the ribbed plate 3 and the frame 7.

[0073] The ribbed plate 3 serves to arrange the rail 2 on a top surface 4 of the ribbed plate 3.

[0074] In the Fig. In the embodiment shown in Figure 1, the rail 2 is firmly attached to the ribbed plate 3, in particular clamped. For this purpose, clamping clamps 29 can be used, which are firmly connected to the ribbed plate 3 via threaded screws 30, which may be secured with a nut 31. This is also evident from the schematic perspective view of the rail support device 1 according to the Fig. 13 and Fig. 14 is evident.

[0075] In the Fig. Figure 13 shows a schematic representation of the clamped rail 2 on the ribbed plate 3. The ribs 28 of the ribbed plate 3 can be perforated to accommodate the threaded screw 30 and to arrange the clamping clamps 29, as shown in the Fig. Figure 16 shows that the opening can be realized via an opening 39, the opening 39 of which can serve for the arrangement of clamping clamps 29 and threaded screws 30, as shown in the schematic perspective representation of a ribbed plate 3 according to Fig. 16 illustrates this.

[0076] Finally, the rail 2 is attached to the rail support device 1 with its longitudinal axis G. It can be provided that the longitudinal axis L of the ribbed plate 3 runs at least substantially perpendicular to the longitudinal axis G of the rail 2. This is shown schematically in the Fig. 2 shown.

[0077] The Fig. Figure 2 illustrates that the first damping element 6 circumferentially separates the ribbed plate 3 from the frame 7, at least substantially completely. The arrangement of the first damping element 6 prevents the frame 7 from directly contacting the ribbed plate 3.

[0078] Furthermore, the first damping element 6 can be firmly bonded to the frame 7 and / or the ribbed plate 3, preferably by a material bond, in particular by vulcanization. The configuration of the first damping element 6 as an intermediate layer between the frame 7 and the ribbed plate 3 is also schematically shown in the Fig. 7 as well as the Fig. 9 and the Fig. 11 particularly clearly illustrates this.

[0079] The Fig. Figures 3 to 6 show a further damping element 8. The further damping element 8 is used below the ribbed plate 3 to limit the deflection in a rail bearing device 1 according to the Fig. 1 arranged. Accordingly, the further damping element 8 is in the Fig. 1 and the Fig. 2 is not apparent, as this is ultimately located below the ribbed plate 3. The arrangement in this regard is shown schematically by the use of dashed lines in Fig. 8 is shown and results from a corresponding underside view of the rib plate 3, as shown schematically in the perspective view according to Fig. 15 is shown.

[0080] From the in the Fig. 7, Fig. 9 and Fig. The arrangement of the further damping element 8 below the ribbed plate 3 is also shown in the respective cross-sectional views 10.

[0081] It is understood that the additional damping element 8, in its installed or fitted and / or mounted state, is at least substantially completely covered and / or enclosed on its upper side by the ribbed plate 3.

[0082] The ribbed plate 3 can have a recess 21 to accommodate the additional damping element 8. The additional damping element 8 can at least substantially cover the surface on the underside 5 of the ribbed plate 3 in the area of ​​the recess 21 and / or abut completely around its circumference 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.

[0083] The rail support device 1 can be arranged on a substrate 37. The frame 7 can be in direct contact with the substrate 37, at least substantially. In its installed state, the ribbed plate 3 is spaced from the substrate 37, as can also be seen schematically in the Fig. 7 and Fig. 9 becomes apparent.

[0084] Not shown is that in a further embodiment the additional damping means 8 is provided for bearing on the substrate 37 in the unloaded state, whereby a distance between the additional damping means 8 and the underside 5 of the ribbed plate 3 may be provided for limiting the deflection.

[0085] The frame 7 can be connected to the substrate 37 via frame fasteners 35. Suitable screws or similar fasteners can be used for this purpose. (See schematic perspective view below.) Fig. Figure 14 shows that a secure connection is achieved through a corresponding toothing, which can be provided both on the frame fastening element 35 and complementarily on the frame 7. The toothed plate 36 used in this regard is also shown schematically in the Fig. 10 shown in more detail.

[0086] The frame 7 can have a recess 9 for arranging the first damping element 6 and the ribbed plate 3, as shown schematically in Fig. 9. In particular, the recess 9 serves to receive the first damping element 6, wherein the first damping element 6 bears circumferentially against the inner wall 10 (namely the inner longitudinal side 24 of the frame 7) of the recess 9, preferably is firmly connected to it, in particular by a material bond, preferably vulcanized.

[0087] The rail support device 1 is used to reduce structure-borne noise.

[0088] This results in an at least essentially oval basic shape for the rail bearing device 1 or the ribbed plate 3 and the first damping element 6, as can be seen from the schematic perspective views according to Fig. 13 and Fig. 14.

[0089] In Fig. Figure 7 shows that the additional damping element 8 adjoins, and in particular rests against, the underside 5 of the ribbed plate 3. The additional damping element 8 can be bonded to the underside 5 of the ribbed plate 3, in particular by a material bond, preferably via vulcanization.

[0090] The in the Fig. Further damping elements 8 shown in Figures 3 to 6 can be made of or consist of natural rubber. In embodiments not shown in detail, an elastomer, in particular a synthetic rubber, can also be used as the material.

[0091] The first damping agent 6 can also be made of natural rubber or a rubber-elastic material or an elastomer, in particular a synthetic rubber.

[0092] In the illustrated embodiments, both the first and the further damping element 6, 8 are made of natural rubber. However, in further embodiments, the material of the first damping element 6 may differ from the material of the further damping element 8.

[0093] The Fig. The further damping element 8 shown in Figure 4 has a Shore A hardness of 50. In further embodiments, the Shore A hardness of the further damping element 8 can be between 45 and 60.

[0094] The Shore hardness of the first damping material 6 can also range between 45 and 60 (Shore A).

[0095] The first damping material 6 can have the same or a different hardness compared to the further damping material 8.

[0096] In the unloaded state of the rail support device 1, a distance 38 between the substrate 37 or the plane spanned by the underside 18 of the frame 7 and the underside 13 of the further damping element 8 can be between 1.5 and 2.5 mm.

[0097] The deflection limit, which results from the deflection of the material of the further damping medium 8 when the rib plate 3 is loaded, can be in particular 2 mm + / - 20%.

[0098] This can result in a total spring deflection limit in height of between 3 and 6 mm, preferably at approximately 4 mm.

[0099] In Fig. 3 and Fig. Figure 4 shows that the further damping element 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 shown. According to the in the Fig. In the embodiments illustrated in Figures 4 to 6, the projections 12 are designed as solid bodies. The projections 12 are, in particular, at least substantially identical in construction to one another. In further embodiments not shown, it may be provided that different shapes of the projections 12 are supplied.

[0100] In the illustrated embodiment, the projections 12 are firmly connected to the base surface 11, in particular formed integrally with it.

[0101] 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 11, as can also be seen schematically in the Fig. 3 emerges.

[0102] The Fig. Figure 4 shows that the projections 12 have a shape that is at least substantially conical or frustoconical. It is not shown in detail that the projections 12 can also have a shape that is at least substantially cylindrical.

[0103] In the Fig. In the embodiment shown in Figure 4, the conical shape of the projections tapers conically from the base 11 to the underside 13 of the further damping element 8. The corresponding taper angle γ can be between 5° and 25°, preferably between 12° and 18°.

[0104] The Fig. Figure 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 borders the outer edge of the damping element 8, as is also shown by the Fig. 15 shows. Two further projections 12 are according to the in Fig. 3 and in Fig. 15 illustrated embodiment in the end-face areas of the further damping element 8 arranged.

[0105] The material thickness 14 of the base 11 of the further damping element 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.

[0106] The rail storage device 1 can have a maximum installation height of 33, as shown in Fig. Figure 1 shows a minimum thickness of 40 mm and, in particular, a thickness of 50 to 60 mm. Since the upper surface 4 of the ribbed plate 3 can be inclined relative to the lower surface 18 of the frame 7 or to the substrate 37, a minimum installation height 34 can also be provided. The minimum installation height 34 can differ from the maximum installation height 33 by 5 to 15 mm as shown in Figure 1. Fig. The embodiment shown in Figure 1 differs and can, in particular, be between 40 and 50 mm. The angle of inclination to the substrate 37 or to the underside 18 of the frame 7, generated by the inclination of the upper surface 4, can be between 0.5° and 3°, and in particular 1.4° + / - 20%.

[0107] The Fig. 7 and Fig. Figure 9 shows that the first damping element 6 extends over the height 17 of the frame 7 with a support section 16. The first damping element 6 extends to the underside 18 of the frame 7 and simultaneously also extends beyond the top of the frame 7, or rather, projects from the top 19 of the frame 7, as shown in the Fig. 7 illustrates this.

[0108] Section 16, as it appears in Fig. As shown in Figure 11, it can rest on the top surface 19 of the frame 7 and / or at least partially lie directly against the top surface 19 of the frame 7.

[0109] Fig. Figure 11 shows that an arrangement section 20 of the first damping element 6 is provided adjacent to the support section 16, which is spaced apart from the underside of the support section 16 and has a receptacle 23 for arranging the ribbed plate 3. The arrangement section 20 can project upwards from the support section 16, as shown by the Fig. 11 also illustrates this.

[0110] Furthermore, the underside 13 of the additional damping element 8 can protrude from the underside of the arrangement section 8, as also shown by Fig. 11 becomes apparent.

[0111] The ribbed plate 3 can have a circumferential support area 22 at its edge, wherein the support area 22 is arranged in the receptacle 23 of the arrangement section 20 of the first damping means 6, in particular wherein the support area 22 of the ribbed plate 3 encloses the recess 21 of the ribbed plate 3, as is also schematically shown in the Fig. 11 shows.

[0112] The inner longitudinal edge or longitudinal side 24 of the frame 7 facing the first damping element 6 and / or the outer longitudinal side 25 of the first damping element 6 facing the inner longitudinal side 24 of the frame 7 can be in direct contact with each other and / or at an angle α, as shown in Fig. 9 is shown, from 40° to 85° and especially from 70° to 80°, extending to the underside 18 of the frame 7.

[0113] Fig. Figure 9 also illustrates that the inner longitudinal side 26 of the first damping element 6 and / or the outer longitudinal side 27 of the ribbed plate 3 facing the first damping element 6 run at an angle β of 40° to 85°, in particular of 70° to 80°, to the underside 18 of the frame 7.

[0114] Angles α and β can be formed at least substantially equal to each other. Angle α faces away from the ribbed plate 3, and angle β also faces away from the ribbed plate 3. This angle formation allows the inner longitudinal side 24 of the frame, the outer longitudinal side 25 of the first damping element 6, the inner longitudinal side 26 of the first damping element 6, and / or the outer longitudinal side 27 of the ribbed plate 3 to run at least substantially parallel to each other, as can be seen schematically in the Fig. 9 is evident.

[0115] Preferably the frame 7, the first damping element 6, the ribbed plate 3 and the further damping element 8 are firmly connected to each other, 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 element 6, 8.

[0116] The elliptical cross-sectional shape (viewed from above) of the ribbed plate 3 and / or the recess 9 and / or the first and / or further damping element 6, 8 can be illustrated in particular by the Fig. 2. The longitudinal axis L of the ellipse of the ribbed plate 3, the recess 9 and / or the damping element 6, 8 can be arranged at least substantially at right angles to the longitudinal axis G of the rail 2.

[0117] Furthermore, the figures also show another embodiment of the rail bearing device 1, as shown in particular from Fig. 7 emerges.

[0118] As previously explained, the rail mounting device 1 serves for the sound-absorbing mounting and fastening of a rail 2. The rail mounting device 1 can have a ribbed plate 3 for arranging the rail 2 on a top surface 4 of the ribbed plate 3 and a first damping element 6. The first damping element 6 can preferably be designed as an elastomer bearing and / or be made of natural rubber. The first damping element 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 element 6 extends with a bearing section 16 over the height 17 of the frame 7 to the underside 18 of the frame 7 for bearing on the substrate 37, as shown in the figure. Fig. 7 schematically emerges.

[0119] Thus, the first damping element 6 is also supported on a substrate 37 in the unloaded state of the rail support device 1 and is arranged at least substantially directly on the substrate 37. Reference symbol list: 1 rail storage device 2 rail 3 ribbed plate 4 Top of 3 5 Bottom of 3 6 first damping device 7 frames 8 additional damping agents 9 Exclusion of 7 10 inner wall of 9 11 Base area of ​​8 12 lead 13 Bottom of 8 14 Material thickness of 11 15 Height of 12 16th edition of 6 17 Height of 7 18 Bottom of 7 19 Top of 7 20 Section of the order of 6 21. Further study of 3 22 Support area of ​​3 23 recordings out of 16 24 inner long side of 7 25 outer long side of 6 26 inner long side of 6 27 outer long side of 3 28th rib of 3 29 clamping clamps 30 threaded screws 31 Mother 32 spacing 33 maximum installation height 34 minimum installation height 35 Frame fasteners 36 Tooth plate 37 Subsurface 38 distance 39 Opening L Longitudinal axis of 3 G Longitudinal axis of 2 α angle β angle γ angle QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 2832989 C2

[0003] DE 2828714 A1

[0003] Cited non-patent literature

[0000] DIN EN ISO 868

[0031] DIN ISO 7619

[0031]

Claims

[1] Rail support device (1) for sound-damping support and fastening of a rail (2), with a ribbed plate (3) for arranging the rail (2) on an upper side (4) of the ribbed plate (3), a first damping means (6), preferably an elastomer bearing, and a frame (7), wherein the first damping means (6) is arranged between the ribbed plate (3) and the frame (7), characterized by that a further damping means (8) is provided below the ribbed plate (3) to limit the deflection. [2] Rail bearing device according to claim 1, characterized by 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 materially connected, particularly preferably is vulcanized on, or that the further damping means (8) is provided for resting on the base (37) and is spaced from the underside (5) of the ribbed plate (3). [3] Rail bearing device according to one of the preceding claims, characterized by that the first damping means (6) and / or the further damping means (8) has and / or consists of an elastomer, in particular a synthetic rubber, and / or an elastic, preferably rubber-elastic, material, preferably natural rubber (NR), as material. [4] Rail bearing device according to one of the preceding claims, characterized bythat the first damping means (6) has and / or consists of at least substantially the same or a different material compared to the material of the further damping means (8) and / or 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 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 bearing device according to one of the preceding claims, characterized bythat a recess (21) for receiving the further damping means (8) is provided on the underside (5) of the ribbed plate (3), in particular wherein the recess is designed such that in the unloaded state of the rail bearing device (1) the underside (13) of the further damping means (8) is spaced from the ground, preferably by at least 0.5 mm, preferably between 1 and 10 mm, more preferably between 1.5 and 2.5 mm. [6] Rail bearing device according to one of the preceding claims, characterized byin that the further damping means (8) has a plurality of projections (12) which are in particular designed as knobs, in particular wherein the projections (12) protrude relative to a base surface (11) facing the underside (5) of the ribbed plate (3) and / or in particular wherein the projections (12) are at least partially, preferably completely, designed as a solid body and / or in particular wherein the projections (12) are firmly connected to the base surface (11) and / or are designed in one piece with the base surface (11). [7] Rail bearing device according to one of the preceding claims, characterized by 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 area (11). [8] Rail bearing device according to one of the preceding claims, characterized by 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) to the underside (13) of the further damping means (8). [9] Rail bearing device according to one of the preceding claims, characterized by that the rail support 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, more preferably between 50 and 60 mm. [10] Rail bearing device according to one of the preceding claims, characterized bythat the first damping means (6) extends with a support section (16) over the height (17) of the frame (7), in particular up to the underside (18) of the frame (7), and preferably protrudes from the top of the frame (7), facing the rail (2), in particular wherein the support section (16) is supported on the top side (19) of the frame (7) and / or at least partially bears directly against the top side (19) of the frame (7). [11] Rail bearing device according to one of the preceding claims, characterized bythat an arrangement section (20) of the first damping means (6) is provided which adjoins the support section (16), is spaced apart from the underside of the support section (16) and has a receptacle (23) for arranging the ribbed plate (3), in particular wherein the arrangement section (20) protrudes on the upper side from the support section (16) and / or in particular wherein the underside (13) of the further damping means (8) protrudes from the underside of the arrangement section (20). [12] Rail bearing device according to one of the preceding claims, characterized by that the ribbed plate (3) has 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). [13] Rail bearing device according to one of the preceding claims, characterized by 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) rests circumferentially on the inner wall (10) of the recess (9) and / or on the inner longitudinal side (24) of the frame (7), preferably being firmly connected thereto, in particular by means of a material fit, preferably by vulcanization. [14] Rail bearing device according to one of the preceding claims, characterized bythat 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). [15] Rail support device (1) for sound-damping support and fastening of a rail (2), in particular according to one of the preceding claims, with a ribbed plate (3) for arranging the rail (2) on an upper side (4) of the ribbed plate (3), a first damping means (6), preferably an elastomer bearing, and a frame (7), wherein the first damping means (6) is arranged between the ribbed plate (3) and the frame (7), characterized bythat 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 base (37).

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