DRAINAGE SYSTEM WITH SEALING BRUSH

Description

[0001] The present invention relates to a drainage element having an inlet opening, an outlet opening, and a drainage channel in the form of a hollow profile, connecting the inlet opening to the outlet opening, with a channel wall and a longitudinal axis. Furthermore, the invention relates to a door assembly for a rail vehicle, as well as to a rail vehicle having an entrance and an interior.

[0002] Especially in bad weather, water can enter the interior of land vehicles used for passenger transport, such as rail vehicles or motor vehicles, mainly due to passengers boarding and disembarking at stops. To prevent or at least reduce the accumulation of large amounts of water in the interior of such land vehicles, drainage systems are often provided in their entrance areas. Regardless of their specific design, drainage systems for land vehicles have one or more drainage inlets to collect water accumulating in the entrance area of ​​the land vehicle, as well as one or more drainage lines connected to the drainage inlets and draining the collected water to the outside.

[0003] When implementing a drainage system for a land vehicle used for passenger transport, various, sometimes mutually influencing, requirements may need to be considered depending on the application. For example, particularly in rail vehicles, the problem often arises that drafts penetrate the interior of the vehicle through the drainage system, specifically in the opposite direction to the drainage system's outflow direction, which, for obvious reasons, is detrimental to the comfort of passengers inside.

[0004] To mitigate this problem, approaches are known from the prior art, e.g. from CN 111 824 192 A, DE 10 2013 217 626 A1 or EP 1 832 492 A2, which provide an opening at the outlet of a drainage pipe which closes automatically like a membrane in cases where no water is to be drained away and opens automatically in cases where a critical amount of water to be drained is present. Although such systems effectively prevent draughts during the closing phases of their outlet, they are sometimes associated with a number of other problems. Specifically, the continuous opening and closing causes increased wear. In addition, the drainage pipe can become blocked, which can prevent it from closing completely. The problem of unwanted draughts also still exists in situations where the end of the drainage pipe is open.

[0005] Another phenomenon that can have a similarly detrimental effect on the comfort in a rail vehicle is the ingress of moisture from the outside via the drainage system into the

[0006] Noise entering the interior of the rail vehicle. In many cases, the land vehicle itself is the primary source of noise, generating unpleasant noises such as wheel-rail noise, rolling noise, curve noise, rail joint noise, or tire noise. Another approach to solving this problem could be to open the outlet openings of drainage lines only when necessary and close them otherwise. However, this typically leads to the same disadvantages mentioned above. In summary, no satisfactory approach to preventing the ingress of noise and / or drafts is known from the current state of the art.

[0007] It is therefore an object of the present invention to provide a low-wear and robust drainage system for a land vehicle, such as in particular for a rail vehicle, which reduces the penetration of disturbing noises and / or drafts into the interior of the land vehicle.

[0008] This object is achieved according to the invention by a drainage element having an inlet opening, an outlet opening, and a drainage channel in the form of a hollow profile, connecting the inlet opening to the outlet opening, having a channel wall and a longitudinal axis. According to the invention, at least one sealing brush with sealing bristles is arranged at a brush connection point on the channel wall of the drainage channel, wherein the sealing bristles protrude from the channel wall in the direction of the longitudinal axis of the drainage channel. The drainage element according to the invention can represent a fully functional drainage system on its own, or it can be part of a more comprehensive drainage system alongside other components, such as a collecting basin, channel slots, and drainage lines. The drainage element according to the invention is therefore universally applicable and can be used in land vehicles, particularly rail vehicles, or in door assemblies.

[0009] The sealing bristles provided within the scope of the invention at least partially cover the cross-section of the drainage channel, which at least inhibits the inflow of drafts and noise emissions into the land vehicle opposite to the outlet direction of the drainage channel 3. The sealing bristles according to the invention still allow water to escape through the sealing bristles, since water can find a way out between the sealing bristles.

[0010] Advantageously, the drainage channel has an inlet region extending from the inlet opening to the brush connection point and an outlet region extending from the brush connection point to the outlet opening, wherein the sealing bristles of the at least one sealing brush are located at least partially within the inlet region or at least partially within the outlet region. In this way, the sealing brushes provided according to the invention can be at least partially protected from external influences, which has a positive effect on the wear that occurs. However, it is not excluded within the scope of the invention to arrange the sealing bristles of the at least one sealing brush entirely outside the drainage channel. Compared to systems known from the prior art, the use of sealing brushes alone leads to a reduction in wear.

[0011] In a further advantageous embodiment, the sealing bristles of the at least one sealing brush can rest with their end facing away from the brush connection point on an inner surface of the channel wall of the drainage channel, whereby even when only one sealing brush is used, a high coverage of the cross section of the drainage channel is achieved and a high reduction of incoming noise and / or draught is possible.

[0012] A particularly advantageous embodiment of the invention can be further achieved by providing a first sealing brush with sealing bristles and a second sealing brush with sealing bristles arranged opposite the first sealing brush in the drainage channel, wherein the sealing bristles of the sealing brushes protrude from the channel wall in the direction of the longitudinal axis of the drainage channel. For obvious reasons, the use of multiple sealing brushes increases the suppression of sound and / or drafts.

[0013] If two or more sealing brushes are used, it can further be provided that the sealing bristles of the first sealing brush and the sealing bristles of the second sealing brush interlock. The provision of interlocking sealing bristles represents a further possibility for providing the most tightly sealed coverage possible for the cross-section of the drainage channel, whereby even in this embodiment, it is still possible for drained water to force its way through the sealing bristles and escape to the outside.

[0014] In a preferred manner, the sealing bristles of at least one sealing brush, or in the case of using multiple sealing brushes, the sealing bristles of several or all sealing brushes, can protrude from the channel wall in the direction of the outlet opening, thereby facilitating the drainage of water due to the inclination of the sealing bristles toward the outlet opening. However, it is not excluded within the scope of the invention to arrange the sealing brushes so that they protrude from the channel wall in the direction of the inlet opening, i.e., to orient the sealing brushes toward the inlet opening.

[0015] As mentioned, the drainage element according to the invention can be used as part of a more comprehensive drainage system, wherein a more comprehensive drainage system can comprise a drainage inlet, a collection volume and a drainage element, and wherein the drainage inlet can be connected to the collection volume and the collection volume can be connected to the drainage element in order to drain water via the drainage inlet, through the collection volume and through the drainage element.

[0016] In a particularly preferred manner, the drainage element according to the invention or a drainage system corresponding to the above description or another drainage system with a drainage element according to the invention can be used in a rail vehicle. The drainage element according to the invention or a drainage system can be part of a door assembly for a rail vehicle, i.e., arranged in an entrance of the rail vehicle, or the drainage element according to the invention or the drainage system can be arranged under or in a vehicle floor in the interior of the rail vehicle, for example, under or next to a seating arrangement for passengers or next to an interior wall of the rail vehicle with a window, thereby making it possible to drain water and / or condensate entering the rail vehicle.

[0017] The present invention is described below with reference to the Figures 1 to 6which show exemplary, schematic and non-limiting advantageous embodiments of the invention. Fig.1a to Fig.1e Embodiments of the drainage element according to the invention with a sealing brush, Fig.2 and Fig.3 Embodiments of the drainage element according to the invention with two sealing brushes, Fig.4 a drainage element according to the invention with an inner cross-sectional area oriented normal to the longitudinal axis of the drainage channel, Fig.5 a drainage system with a drainage element according to the invention, and Fig.6 a door assembly for a rail vehicle.

[0018] The Figures 1a to 1eshow schematic representations of a drainage element 1 according to the present invention. According to the invention, the drainage elements 1 shown each have an inlet opening 2, an outlet opening 4, and a drainage channel 3 designed in the form of a hollow profile connecting the inlet opening 2 to the outlet opening 4. The drainage channel 3 has a channel wall 3a and a longitudinal axis 2-4. The cross-sectional shape of the hollow profile is irrelevant but is preferably rectangular. Furthermore, the cross-section of the hollow profile does not necessarily have to remain constant along the longitudinal axis 2-4.

[0019] As mentioned, the task of a drainage element 1 is to drain water, such as rainwater or waste water or condensate, from the interior of a

[0020] land vehicle, preferably from the interior of a rail vehicle. Fig.1a to 1eThe drainage element 1 shown can either be a component of a more comprehensive drainage system 10, wherein the more comprehensive drainage system 10 can comprise further components in addition to the drainage element 1 according to the invention, such as a drainage piping or a collecting volume, but a drainage element 1 can also function as a fully functional drainage system on its own and can accordingly be used to drain water without the use of further components.

[0021] As explained in detail earlier, drainage systems known from the prior art are confronted with various problems, be they wear or functional limitations or drafts and / or disturbing noises penetrating the interior of the land vehicle through the drainage system. In contrast, in order to provide a low-wear and functionally robust drainage system that reliably prevents the penetration of disturbing noises and drafts, the drainage element 1 according to the invention is equipped with at least one sealing brush 5.

[0022] A sealing brush 5 is characterized by a plurality of separate sealing bristles 7 arranged side by side on a brush base body and projecting from the brush base body in a specific, predetermined direction. The sealing bristles 7 can be arranged more or less densely and even in multiple rows.

[0023] As in the Figures 1a to 1eAs shown, the sealing brush 5 provided according to the invention is arranged at a brush connection point BV of the channel wall 3a of the drainage channel 3, usually above the brush base body. With regard to the sealing bristles 7, it is crucial that, when the sealing brush 5 is arranged on the channel wall 3a, they protrude from the channel wall 3a in the direction of the longitudinal axis 2-4 of the drainage channel 3.

[0024] The sealing brushes 5 provided within the scope of the invention achieve a number of advantageous effects. Specifically, the cross-section of the drainage channel 3 is at least partially covered by the sealing bristles 7, which at least inhibits and dampens the inflow of drafts and noise emissions into the land vehicle opposite to the outlet direction of the drainage channel 3. If a sealing brush 5 with closely arranged sealing bristles 7 is advantageously selected, which extend in particular over the entire cross-section of the drainage channel 7 and thus advantageously cover it almost completely, the ingress of drafts and noise can be almost completely eliminated.Nevertheless, the sealing bristles 7 still allow water to escape between the sealing bristles 7, so that water can find a way between the sealing bristles 7 through the sealing brush 5 to the outside, even when the sealing bristles 7 are very densely packed. The present invention thus solves the problems of enabling water to escape and preventing noise or draught from entering in a simple and efficient manner.

[0025] Furthermore, the use of a sealing brush 5 also makes it possible to implement the principle that sealing bristles 7 can yield to a (weight) force acting on the sealing bristles 7, which can result in particular from dirt and / or grime accumulating above the sealing bristles 7. In an advantageous manner, the sealing bristles 7 can be designed to only yield when the weight of the dirt or grime causing the (weight) force reaches a critical value dependent on the design of the sealing brushes 5. This critical value, which depends on the design of the sealing brushes 5, can be the weight of the dirt or grime accumulated above the sealing brush 5, for example, 100 grams, 250 grams, 500 grams, 750 grams, 1000 grams, or 2000 grams.In this case, the provided sealing bristles 7 twist in the direction of the outlet opening 4, thus creating a path for the water to be drained away and, in particular, for the accumulated dirt or grime. In contrast to solutions known from the prior art, which have membrane-like outlet openings, the sealing brush 5 provided according to the invention, in the case of this advantageous embodiment, has a significantly improved recovery behavior. Recovery behavior is understood to mean the movement of the sealing bristles 7 back to their original position after they have twisted, for example, due to the weight of dirt or grime accumulated above them. It can be seen that, within the scope of the invention, significantly less sound enters the interior even during phases of automatic opening than with known approaches from the prior art.Furthermore, the wear and tear of brushes is lower than with state-of-the-art solutions.

[0026] The longitudinal axis 2-4 essential for the functional principle according to the invention is characterized in that it runs along a longitudinal extension of the drainage channel 3 through the inlet opening 2, further through the drainage channel 3, and through the outlet opening 4. Of course, the term "longitudinal axis 3a" of a hollow profile is well known to a person skilled in the field of mechanical engineering or construction, and within the scope of the present invention, it corresponds to the direction of the longitudinal extension of the hollow profile of the drainage channel 3.

[0027] Like the Figures 1a to 1eAs can be seen, a multitude of implementation variants already exist when using only one sealing brush 5. Thus, the sealing bristles 7 of the sealing brush 5 can point from the brush connection point BV towards the longitudinal axis 3a and towards the outlet opening 4 of the drainage element, as in Fig. 1a shown.

[0028] It is also conceivable that the sealing bristles 7 of the sealing brush 5 point towards the longitudinal axis 3a and towards the inlet opening 2, as in Fig.1b shown. An alignment of the sealing bristles 7 essentially normal to the longitudinal axis 2-4 is also conceivable.

[0029] Furthermore, a further possibility for implementing the invention is to arrange the sealing bristles 7 entirely outside the drainage channel 3, as in Fig.1c or Fig.1e shown.

[0030] As in Fig.1dshown, it is also conceivable that at least some of the sealing bristles 7 of the sealing brush 5 rest with their end facing away from the brush connection point BV on an inner surface of the channel wall 3a of the drainage channel 3. In particular, by the Fig.1d By applying the sealing bristles 7 to the channel wall 3a, a high degree of coverage of the cross-section of the drainage channel 3 can be achieved, thus efficiently preventing noise and drafts from penetrating the interior of a vehicle. The functionality of draining water is fully retained in this case as well.

[0031] In order to define the geometry of the drainage elements 1 under consideration in more detail, an inlet area E and an outlet area A of the drainage channel 3 can be defined in an advantageous manner using the brush connection point BV, as shown in the Figures 1a and 1bshown. Specifically, it can be assumed that there is an inlet area E extending from the inlet opening 2 to the brush connection point BV and an outlet area A extending from the brush connection point BV to the outlet opening 4, with the aid of which the arrangement and / or orientation of the at least one sealing brush 5 can be clearly and precisely defined. Although only for the Figures 1a and 1b the corresponding inlet areas E and outlet areas A are shown graphically, it is of course also possible for all other implementation forms to define a corresponding inlet area E and a corresponding outlet area A.

[0032] Based on a Fig.1a or Fig.1bFor example, it can be stated that the sealing bristles 7 of the at least one sealing brush 5 are advantageously located at least partially within the inlet area E or at least partially within the outlet area A.

[0033] Likewise, with reference to an inlet area E and an outlet area A, it can be determined that the sealing bristles 7 of the at least one sealing brush 5 lie entirely within the inlet area E or at least partially within the outlet area A, which requires a further description, among other things, of the embodiments according to Fig.1a and Fig.1b enabled.

[0034] Furthermore, with regard to the inlet area E as well as with regard to the outlet area A, a length L of the projection of the sealing bristles 7 onto the longitudinal axis 3a can also be used. For example, if it is required that a length of a part of the longitudinal axis 2-4 running in the inlet area E and / or a length of a part of the longitudinal axis 2-4 running in the outlet area A corresponds at least to a length of the sealing bristles 7 projected onto the longitudinal axis 2-4, as exemplified in Fig.1b shown, this means that the sealing bristles 7 of a sealing brush 5 are at least partially located within the drainage channel 3.

[0035] According to the variety of Figures 1a to 1e The implementation options shown also result in different possibilities with regard to a large number of implementation details of the drainage element 1 according to the invention.

[0036] Thus, the at least one sealing brush 5 can have a brush head 6 or a brush holder in which the sealing bristles 7 of the at least one sealing brush 5 are fastened, and the brush head 6 can be connected to the channel wall 3a in order to connect the sealing brush 5 to the channel wall.

[0037] A sealing brush 5 can also be connected to the duct wall 3a in a form-fitting, force-fitting, or material-fitting manner, for example by providing a brush head that is connected to the duct wall 3a in a form-fitting, force-fitting, or material-fitting manner. Likewise, a sealing brush 5 can also be detachably connected to the duct wall 3a. Designs based on detachably arranged sealing brushes 5 open up, in particular, the possibility of replacing sealing brushes 5 in the event of damage or contamination or for maintenance purposes. For example, a sealing brush 5 can be detachably screwed to the duct wall 3a, removably plugged in, or removably clamped.

[0038] Furthermore, the specific type of sealing brushes 5 used is in no way restricted. Thus, within the scope of the invention, it is possible to use a knotted brush, a strip brush, a ring-lock brush, or another suitable brush type as the sealing brushes 5, whose sealing bristles 7 can be manufactured in various ways. The use of a strip brush is preferred. The sealing bristles 7 of a sealing brush 5 are preferably made of a plastic material.

[0039] The drainage channel 3, which is essential to the invention, can also be made of a wide variety of materials. Depending on the specific application, it may prove advantageous to manufacture the drainage channel 3 from steel, aluminum, or plastic.

[0040] In addition to the designs based on only one sealing brush 5, the Figures 2 and 3each an advantageous realization of the drainage element 1 according to the invention with two sealing brushes 5, 52. The above statements apply unchanged to the following considerations.

[0041] Specifically, the Figures 2 and 3 An advantageous embodiment of the drainage element 1 according to the invention with a first sealing brush 5 with sealing bristles 7 and a second sealing brush 52 with sealing bristles 72. The second sealing brush 52 is preferably arranged opposite the first sealing brush 5 in the drainage channel 3. The sealing bristles 7, 72 of both sealing brushes 5, 52 protrude from the channel wall 3a in the direction of the longitudinal axis 2-4 of the drainage channel 3.

[0042] In a particularly advantageous manner, it can be provided that at least one sealing bristle 7 of the first sealing brush 5 touches at least one sealing bristle 72 of the second sealing brush 52. As mentioned, the sealing brushes 5 provided according to the invention aim to achieve the greatest possible coverage of the cross-section of the drainage channel 3, which is particularly achievable when the sealing bristle 72 of the possibly several sealing brushes 5, 52 provided lie close to one another, preferably so close that contact occurs between the sealing bristles 7, 72 of the various sealing brushes 5, 52.

[0043] In a particularly advantageous manner, the desired covering of the cross-section of the drainage channel 3a can be achieved by the sealing bristles 7 of the first sealing brush 5 and the sealing bristles 72 of the second sealing brush 52 interlocking, as shown in the Figures 2 and 3The sealing bristles 7 can end at the same height as in Fig.2 , or end at different heights, as in Fig.3 .

[0044] When using two interlocking sealing brushes 5, 52, the previously described function of twisting the sealing bristles 7 due to accumulated dirt or grime can be realized in a particularly advantageous manner. Specifically, accumulated dirt or grime can push the two sealing bristles 7 apart, i.e., push them away from the longitudinal axis 2-4, thus clearing the path for the dirt to be removed.

[0045] However, within the scope of the invention, it can also be provided that, in addition to sealing brushes 5 which have sealing bristles 7 which touch sealing bristles 72 of another sealing brush 52, further sealing brushes are provided at the same time, the sealing bristles of which do not touch sealing bristles 7, 72 of another sealing brush 5, 52.

[0046] As is easy to see, the difference between the advantageous embodiments according to Fig.2 and Fig.3 in the arrangement of the two sealing brushes 7, 72.

[0047] Specifically, the second sealing brush 72 is designed according to Fig.3connected to the channel wall 3a at a brush connection point BV2, which is spatially closer to the inlet opening 2 than the brush connection point BV of the first sealing brush 7. The sealing brushes 7, 72 are thus arranged offset with respect to the longitudinal extent of the drainage channel 3, which represents a further advantageous embodiment of the invention. Particularly in cases in which a space-saving implementation of the drainage element 1 with two sealing brushes 5, 52 is required, the vertical extent of the drainage channel 3, i.e. the extent of the drainage channel 3 normal to the longitudinal axis 2-4, can sometimes be significantly reduced in this way, since brush holders 6, which sometimes take up space, no longer have to be arranged at the same height and can therefore be moved closer together.

[0048] In the Fig.2 and Fig.3In the cases shown, the sealing bristles 7, 72 interlock and consequently overlap, resulting in at least partial, advantageously almost complete, coverage of the cross section of the drainage channel 3.

[0049] As already mentioned in the discussion of the Figures 1a-1e executed, also applies to the Fig.2 and Fig.3 shown embodiment with two sealing brushes 5, 52, that each of the sealing brushes 5, 52 can be arranged entirely within the drainage channel 3, or only partially within the drainage channel 3, or can also be arranged entirely outside the drainage channel 3.

[0050] In order to describe the covering effect of the sealing brushes 5 according to the invention in more detail, Fig.4 a drainage element 1 according to the invention with an inner cross-sectional area Q oriented normal to the longitudinal axis 2-4 of the drainage channel 3 is shown. Specifically, Fig.4an inner cross-sectional area Q oriented normal to the longitudinal axis 2-4 of the drainage channel 3 of the drainage element 1, which is largely covered by the sealing bristles 7 of the illustrated sealing brush 5. In an advantageous manner, the sealing bristles 72 of the at least one sealing brush 5 cover the inner cross-sectional area Q by at least 50%, or at least 70%, or at least 80%, or at least 90%.

[0051] In order to achieve the highest possible coverage with a given sealing brush 5, the sealing bristles 7 of which have a fixed length, it is advantageous in many cases to arrange the sealing bristles 72 of the at least one sealing brush 5 at a right angle or at least approximately at a right angle, ie at an angle of approximately 90 degrees, e.g. between 70 degrees and 110 degrees or between 80 degrees and 100 degrees or between 85 degrees and 95 degrees, to the longitudinal axis 2-4.

[0052] In Fig.4In the case shown, the inner cross-sectional area Q of the drainage channel 3, oriented perpendicular to a longitudinal extent of the drainage channel 3, has a rectangular cross-sectional area. Although it is advantageous in many cases to provide rectangular cross-sectional areas, since rectangular cross-sectional areas Q simplify the assembly of the sealing brushes 5, the specific shape of the cross section of the drainage channel 3 does not represent any limitation of the invention. On the contrary, circular or oval-shaped or other triangular, quadrangular, pentagonal or polygonal cross-sectional areas Q are equally conceivable for implementing the invention.

[0053] As mentioned earlier, a drainage element 1 according to the invention can in particular be a component of a more comprehensive drainage system 10, which comprises further components in addition to the drainage element 1 according to the invention. Such a drainage system 10, comprising a drainage inlet 11, a collection volume 12 and a drainage element 1, will be described below with reference to Fig.5 received.

[0054] Specifically, in the Fig.5 In the drainage system 10 shown, the drainage inlet 11 on the end of the drainage inlet 11 facing the collection volume 12 is connected to the collection volume 12 and the collection volume 12 is connected to the drainage element 1, so that water can pass through the drainage inlet 11, through the collection volume 12 to the drainage element 1 in order to be drained away from there.

[0055] In addition to the Fig.5The use of the drainage element 1 according to the invention in a drainage system 10 comprising several components is shown in Fig.6 a further, particularly advantageous use as part of a door assembly 100 for a land vehicle is shown.

[0056] Specifically, Fig.6a door assembly 100, which can be used in particular for rail vehicles, with a door frame TR and a door sill TS. The door assembly 100 can either have a drainage element 1 according to the invention arranged in the door sill TS, the inlet opening 2 of which is connected to a collection area of ​​the door sill TS for collecting water to be drained away, in order to drain water collecting in the collection area of ​​the door sill TS through the drainage element 1, or the door assembly 100 can comprise a drainage system 10 arranged in the door sill TS according to the above embodiments, the drainage inlet 11 of which is connected to a collection area of ​​the door sill TS for collecting water to be drained away, in order to drain water collecting in the collection area of ​​the door sill TS through the drainage system 10.

[0057] All of the embodiments considered so far can be used in a particularly advantageous manner in rail vehicles, such as a railway, a tram or a subway, which will be discussed in conclusion.

[0058] Usually, a rail vehicle has an entrance and an interior, so that in order to equip a rail vehicle with a drainage element according to the invention, for example, the entrance of the rail vehicle can be designed as a door assembly 100 according to Fig.6 can be designed.

[0059] In addition or alternatively to the design of an entry as a door assembly 100 according to Fig.6a drainage element 1 according to the invention can be provided under a vehicle floor of the rail vehicle which delimits the interior of the rail vehicle, the inlet opening 2 of which is connected to a collection area on the vehicle floor of the rail vehicle for collecting water to be drained away and the outlet opening 4 of which leads to the outside in order to drain water collecting in the collection area of ​​the vehicle floor of the rail vehicle from the collection area via the drainage element 1 to the outside.

[0060] In addition or as an alternative to the above-mentioned embodiments of a rail vehicle, a drainage system 10 corresponding to the above embodiments can be provided under a vehicle floor of the rail vehicle delimiting the interior of the rail vehicle, the drainage inlet 11 of which is connected to a collection area on the vehicle floor of the rail vehicle for collecting water to be drained away, wherein the outlet opening 4 of the drainage element 1 provided in the drainage system 10 leads to the outside in order to drain water collecting in the collection area of ​​the vehicle floor of the rail vehicle from the collection area to the outside via the drainage system 11.

[0061] Furthermore, at least one drainage element 1 according to the invention can be provided in the rail vehicle, the inlet opening 2 of which is connected via at least one channel slot to the collection area of ​​the door sill TS or to the collection area on the vehicle floor, or at least one drainage system 10 can be provided, the drainage inlet 11 of which is connected via at least one channel slot to the collection area of ​​the door sill TS or to the collection area on the vehicle floor. The channel slots can have a width of less than 10 mm, a width of less than 5 mm, a width of less than 3 mm, or a width of less than 2 mm, in order, among other things, to prevent stones or other dirt from entering the drainage element 1, which could, for example, obstruct the sealing brushes 5.

[0062] In an advantageous embodiment of a rail vehicle, the vehicle floor of the rail vehicle can initially slope downwards from a vehicle door, i.e., starting from the entrance, toward the center of the vehicle and then extending essentially horizontally. If, in this case, a drainage element 1 according to the invention or a drainage system 10 corresponding to the above embodiments is provided at the end of the sloping part of the vehicle floor, the sloping vehicle floor ensures that water is directed downwards from the door sill toward the drainage element 1 or toward the drainage system 10, from where it is drained away, and thus prevented from flowing further into the interior of the rail vehicle.

Claims

1. Drainage element (1) with an inlet opening (2), an outlet opening (4) and a drainage channel (3), the drainage channel (3) connecting the inlet opening (2) to the outlet opening (4) and designed in the form of a hollow profile having a channel wall (3a) and a longitudinal axis (2-4), characterized in that at least one sealing brush (5) with sealing bristles (7) is arranged at a brush connection point (BV) of the channel wall (3a) of the drainage channel (3), the sealing bristles (7) protruding from the channel wall (3a) in the direction of the longitudinal axis (2-4) of the drainage channel (3).

2. Drainage element (1) according to claim 1, characterized in that the drainage channel (3) has an inlet region (E) extending from the inlet opening (2) to the brush connection point (VP) and an outlet region (A) extending from the brush connection point (VP) to the outlet opening (4) and in that the sealing bristles (7) of the at least one sealing brush (5) lie at least partially within the inlet region (E) or at least partially within the outlet region (A).

3. Drainage element (1) according to claim 1, characterized in that the sealing bristles (7) of the at least one sealing brush (5) lie outside the drainage channel (3).

4. Drainage element (1) according to claim 1 or 2, characterized in that the ends of the sealing bristles (7) facing away from the brush connection point (BV) rest on an inner surface of the channel wall (3a) of the drainage channel (3).

5. Drainage element (1) according to any of the preceding claims, characterized in that a first sealing brush (5) with sealing bristles (7) and a second sealing brush (5) with sealing bristles (7) arranged opposite the first sealing brush (5) in the drainage channel (3) are provided, the sealing bristles (7, 72) of both sealing brushes (5, 52) protruding from the channel wall (3a) in the direction of the longitudinal axis (2-4) of the drainage channel (3).

6. Drainage element (1) according to claim 5, characterized in that at least one sealing bristle (7) of the first sealing brush (5) touches at least one sealing bristle (72) of the second sealing brush (52).

7. Drainage element (1) according to claim 5 or 6, characterized in that the sealing bristles (7) of the first sealing brush (5) and the sealing bristles (72) of the second sealing brush (52) interlock.

8. Drainage element (1) according to any of the preceding claims, characterized in that an inner cross-sectional area of the drainage channel (3) oriented normal to the longitudinal axis (2-4) of the drainage channel (3) is covered by the sealing bristles (72) of the at least one sealing brush (5) to at least 50% or to at least 70% or to at least 80% or to at least 90%.

9. Drainage element (1) according to any of the preceding claims, characterized in that the sealing bristles (72) of the at least one sealing brush (5) protrude from the channel wall (3a) in the direction of the outlet opening (4).

10. Drainage system (10) comprising a drainage inlet (11), a collection volume (12) and a drainage element (1) according to any of the preceding claims, wherein the drainage inlet (11) is connected to the collection volume (12) and the collection volume (12) is connected to the drainage element (1) in order to drain water via the drainage inlet (11), through the collection volume (12) and through the drainage element (1).

11. Door assembly (100) for a rail vehicle, the assembly comprising a door frame (TR) and a door sill (TS), and either a drainage element (1) according to any of claims 1 to 9 arranged in the door sill (TS), the inlet opening (2) of which drainage element being connected to a collection area of the door sill (TS) for collecting water to be drained in order to drain water collecting in the collection area of the door sill (TS) through the drainage element (1), or a drainage system (10) according to claim 10 arranged in the door sill (TS), the drainage inlet (11) of which drainage system is connected to a collection area of the door sill (TS) for collecting water to be drained in order to drain water collecting in the collection area of the door sill (TS) through the drainage system (10).

12. Rail vehicle with an entrance and an interior, characterized in that the entrance is designed as a door assembly (100) according to claim 11 or in that a drainage element (1) according to any of claims 1 to 9 is provided under a vehicle floor of the rail vehicle delimiting the interior of the rail vehicle, the inlet opening (2) of which drainage element is connected to a collection area on the vehicle floor of the rail vehicle for collecting water to be drained and the outlet opening (4) of which drainage element leads to the outside in order to drain water collecting in the collection area of the vehicle floor of the rail vehicle from the collection area to the outside via the drainage element (1), or in that a drainage system (10) according to claim 10 is provided under a vehicle floor of the rail vehicle delimiting the interior of the rail vehicle, the drainage inlet (11) of which drainage system is connected to a collection area on the vehicle floor of the rail vehicle for collecting water to be drained, the outlet opening (4) of the drainage element (1) provided in the drainage system (10) leading to the outside in order to drain water collecting in the collection area of the vehicle floor of the rail vehicle from the collection area to the outside via the drainage system (11).

13. Rail vehicle according to claim 12, characterized in that at least one drainage element (1) according to any of claims 1 to 9 is provided, the inlet opening (2) of which is connected via at least one channel slot to the collection area of the door sill (TS) or to the collection area on the vehicle floor, or in that at least one drainage system (10) according to claim 10 is provided, the drainage inlet (11) of which is connected via at least one channel slot to the collection area of the door sill (TS) or to the collection area on the vehicle floor.

14. Rail vehicle according to claim 13, characterized in that the channel slots have a width of less than 10 mm or a width of less than 5 mm or a width of less than 3 mm or a width of less than 2 mm.