Seating unit for a rail vehicle

Abstract

The present invention relates to a seating unit (4) for a rail vehicle (1), comprising at least one seat and a seat support (10) for supporting the seat(s), each seat forming a seating position. The seat support (10) has an air outlet box (12) and a support structure (14) that supports the seat(s), the air outlet box (12) forming an air duct (26) and comprising a lower surface (24) which has an air outlet grille (30) having an outlet area of ​​at least 850 cm². 2 The invention comprises a support structure (14) for each seat, wherein the support structure (14) includes a wall mounting (40) for attaching the seat support (10) to a side wall (2) of the rail vehicle (1) and a support strut (42), the support strut connecting the wall mounting (40) to an underside of the seat(s). The present invention also relates to a rail vehicle and a method for ventilating a rail vehicle.

Description

[0001] The present invention relates to a seating unit for a rail vehicle, comprising at least one seat and a seat support for supporting the seat(s).

[0002] Seat supports for seating units in rail vehicles, which have an integrated air duct, are known. One such seat support is described, for example, in WO 2006 / 100 337 A1. This seat support allows warm or cold air to flow into the passenger compartment of the rail vehicle in order to heat or cool the passenger compartment.

[0003] US 3 897 974 A describes a multi-passenger seat and DE 10 2015 205 692 A1 describes a vehicle with a warm air duct.

[0004] Generally, a minimum air volume flow is required to achieve sufficient air exchange and maintain a desired temperature in the passenger compartment.

[0005] In previously known seat supports, such a required minimum air volume flow results in air being directed into the passenger compartment at a high outflow velocity. This type of ventilation is also known as mixing ventilation.

[0006] The high airflow can, for example, cause drafts in the passenger compartment. Furthermore, the air flowing out at relatively high speed can generate noise. Thus, passenger comfort is impaired in such seating configurations.

[0007] Therefore, it is an object of the present invention to at least reduce or eliminate the aforementioned disadvantages. In particular, it is an object of the present invention to provide satisfactory ventilation of the passenger compartment in a simple manner without impairing passenger comfort.

[0008] According to the invention, this problem is solved by a seating unit for a rail vehicle, which comprises at least one seat and a seat support for supporting the seat(s), wherein each seat forms a seating position, characterized in that the seat support has an air outlet box and a support structure which supports the seat(s), wherein the air outlet box forms an air duct and comprises a lower surface which has an air outlet grille which has an outlet area of ​​at least 850 cm². 2 per seat, wherein the support structure comprises a wall mounting for attaching the seat support to a side wall of the rail vehicle and a support strut, the support strut connecting the wall mounting to an underside of the seat(s).

[0009] The seat unit according to the invention allows the air mass required for satisfactory ventilation of the passenger compartment to flow out of the seat support at a low outflow velocity, while simultaneously offering sufficient stability. Thus, the seat unit according to the invention enables satisfactory ventilation of the passenger compartment in a simple manner, without impairing passenger comfort.

[0010] In particular, the outflow area of ​​at least 850 cm² allows 2 Each seat has a slow outflow of air, which thus flows out as so-called displacement air. Despite the large outflow area, the seating unit according to the invention is sufficiently stable to, for example, support the weight of passengers or luggage.

[0011] The support strut connects the wall mounting to the lower surface of the outlet box.

[0012] The outlet box also comprises an upper wall and two side walls, the upper wall being arranged above the air outlet grille and parallel to the air outlet grille, and the side walls connecting the upper wall to the air outlet grille, and the upper wall forming a support surface for the seat(s).

[0013] According to preferred embodiments, the seating unit according to the invention comprises one, several or all of the following features, in all technically possible combinations: - the seat(s) are supported exclusively by the seat support against the side wall of the rail vehicle; - the support structure further comprises at least one cross brace which connects the support brace to the lower surface of the outlet box; - the outlet box has rails for attaching the seat(s), which are arranged laterally on each longitudinal side of the outlet box and extend parallel to a longitudinal direction of the air duct; - the air outlet grille extends over at least 80% of the lower surface; - the air outlet grille has air outlet holes which are evenly distributed over the surface of the air outlet grille; - the outlet box has at least one reinforcing wall arranged in the air duct, which extends essentially transversely to a longitudinal direction of the air duct; - The air outlet box extends across the entire width of the seat(s) of the seating unit.

[0014] The invention further relates to a rail vehicle comprising at least one side wall which has at least one air duct, wherein the rail vehicle further comprises a seat unit as described above, wherein the air duct of the side wall opens into the air duct of the seat support.

[0015] Finally, the invention also relates to a method for ventilating a rail vehicle, which comprises a seat unit as described above, wherein the air flows out of the seat support at a maximum speed of 0.25 m / s.

[0016] According to a preferred embodiment, the method according to the invention comprises the following features: The air flowing out of the seat support has a temperature difference of about 2 to 4 Kelvin compared to the temperature of the environment of the seat support.

[0017] Preferred embodiments of the invention will now be described in detail with reference to the drawings, wherein: - Fig. 1 shows a part of a rail vehicle in perspective view, which includes the seat support of the seat unit; - Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. Sixteen sectional views are shown, illustrating various alternative embodiments of a support structure for the seat carrier. - Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 sectional views are shown, which depict various alternative embodiments of a support structure for the seat carrier that do not correspond to the invention, and - Fig. Figure 29 shows a perspective view of another embodiment of a seat support.

[0018] The Fig. Figure 1 shows part of a rail vehicle 1, which includes at least a side wall 2 and a seating unit 4.

[0019] The side wall 2 extends, for example, parallel to a longitudinal direction of the rail vehicle 1. In this case, the longitudinal direction of the rail vehicle 1 extends in particular in the direction of travel of the rail vehicle 1.

[0020] The side wall 2 has an air duct 6 which is integrated into a panel of the side wall 2.

[0021] Seating unit 4 comprises at least one seat 8 (see schematic representation in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28) and a seat support 10 for supporting the at least one seat 8.

[0022] Seat unit 4 forms a so-called cantilever seat. Seat unit 4 is attached exclusively to the side wall 2 of the rail vehicle 1. In particular, the seat support 10 rests exclusively on the side wall 2. Seat unit 4 is not attached to the floor of the rail vehicle 1. There is a gap between the seat support 10 and the floor of the rail vehicle 1.

[0023] Preferably, the seating unit 4 comprises several seats 8, for example three seats. Each seat 8 forms one seat.

[0024] The 8 seats are arranged side by side, along a direction that extends perpendicular to the side wall 2. The seats have a width that is defined in a direction orthogonal to the side wall 2.

[0025] Seats 8 are already known and will not be described further in the following description.

[0026] As in Fig. As can be seen, the seat support 10 extends essentially transversely to the side wall 2 to which it is attached.

[0027] In the Fig. In the embodiment shown in Figure 1, the seat support 10 comprises an outlet box 12 and a support structure 14.

[0028] The outlet box 12 extends at least over part of the width of the seats 8. In the first embodiment, the outlet box extends essentially over the entire width of the seats 8.

[0029] The outlet box 12 extends essentially perpendicular to the side wall 2. At one end, the outlet box 12 is supported in this example by the side wall 2.

[0030] The outlet box 12 is located below the seats 8.

[0031] The outlet box 12 comprises an upper wall 20, at least two side walls 22, and a lower surface 24. The upper wall 20 is located below the seat(s) 8. In this embodiment, it forms a support surface for the seat(s) 8. The side walls 22 connect the upper wall 20 to the lower surface 24. In the example of the Fig. 1 the side walls 22 are arranged orthogonally to the upper wall 20 and to the lower surface 24.

[0032] The upper wall 20 is arranged above an air outlet grille 30 (described in more detail below) and parallel to the air outlet grille 30.

[0033] For the following description, a longitudinal direction L of the outlet box 12 is defined. As in the example of Fig. As shown in Figure 1, the longitudinal direction L extends parallel to the upper wall 20, the side walls 22 and the lower surface 24.

[0034] The longitudinal direction L extends transversely to the side wall 2 of the rail vehicle 1 to which the seat support 10 is attached.

[0035] Furthermore, the outlet box 12 has an end wall (not shown) which is arranged transversely to the longitudinal direction L at an end of the outlet box 12 facing away from the side wall 2 and closes the outlet box 12 at this end. The outlet box 12 thus essentially forms a cuboid.

[0036] The upper wall 20, the side walls 22, and the lower surface 24 define an air duct 26. The air duct 26 is fluidically connected to the air duct 6 formed in the side wall 2. In particular, the air duct 6 opens into the air duct 26 of the seat support 10.

[0037] The outlet box is particularly suitable for supplying displacement air to the passenger compartment. Displacement air is defined as an airflow that exits the outlet box at a maximum velocity of 0.25 m / s. Furthermore, displacement air advantageously exhibits a temperature difference of approximately 2 to 4 Kelvin compared to the ambient temperature of the seat support 10, for example, the passenger compartment.

[0038] The air duct 26 is suitable for guiding an airflow along the longitudinal direction L, that is, essentially parallel to the side walls 22 and to the upper wall 20.

[0039] In the exemplary embodiment of Fig. The outlet box 12, and in particular the air duct 26, has a rectangular cross-section transverse to the longitudinal direction L. In this example, this rectangular cross-section is formed by the upper wall 20, the side walls 22, and the lower surface 24.

[0040] The lower surface 24 has an air outlet grille 30.

[0041] For example, the air outlet grille 30 extends over more than half of the lower surface 24. Preferably, the air outlet grille 30 extends over at least 80 percent of the lower surface 24. More preferably, the air outlet grille 30 extends over the entire lower surface 24.

[0042] The air outlet grille 30 has an outlet area of ​​at least 850 cm². 2 per seat, ideally it is in the range of 850 cm 2 up to 1900 cm per seat 2 per seat, it is particularly advantageous at 1000 cm 2 up to 1200 cm2 per seat.

[0043] The outlet area is the area through which the air can flow from the air duct 26 into the passenger compartment.

[0044] The air outlet grille 30 has outlet openings through which air flows from the air duct 26 into the passenger compartment. Preferably, the outlet openings are distributed over the entire surface of the air outlet grille 30, and in particular, uniformly distributed. Preferably, the air outlet grille 30 extends substantially horizontally, and the outlet openings have a vertical axis.

[0045] The air outlet grille 30, for example, has first grille bars oriented transversely to the longitudinal direction L and second grille bars oriented parallel to the longitudinal direction L. In this case, the outlet openings are limited by the grille bars of the air outlet grille 30.

[0046] In another example, the air outlet grille 30 is formed by a plate having a plurality of outlet holes, which are formed in particular by punching. The plate is preferably made of sheet metal.

[0047] Preferably, the only openings through which air can be released into the passenger compartment are the outlet openings in the air outlet grille 30.

[0048] Furthermore, the outlet box 12 has, for example, at least one reinforcing wall (not shown) extending transversely to the longitudinal direction L. Preferably, the outlet box 12 has several such reinforcing walls. Each reinforcing wall is arranged in the air duct 26. Each reinforcing wall also has at least one opening so that air can continue to flow through the air duct 26 in the longitudinal direction L. Each opening extends, for example, over at least half of a cross-sectional area of ​​the air duct 26, wherein the cross-sectional area is arranged transversely to the longitudinal direction L.

[0049] Each reinforcing wall is formed, for example, by a plate, preferably by a sheet of metal, which is made of, for example, aluminum.

[0050] The reinforcement wall is particularly suitable for absorbing torsional forces acting on the outlet box 12.

[0051] In the Fig. In the illustrated example 1, the outlet box 12 has rails 28 which serve to attach the seat(s) 8 to the seat support 10. In this example, the outlet box comprises a rail 28 on each longitudinal side of the outlet box 12, and in particular on each side wall 22 of the outlet box 12. The rails 28 extend, for example, in the longitudinal direction L.

[0052] Each rail 28, for example, has a profile in the shape of a "C" rotated by 90°. The rail 28 is open at the top.

[0053] The seat(s) 8 comprise devices (not shown) complementary to the rail 28, which are suitable for engaging with the rail 28.

[0054] In the example of Fig. 1. The side walls 22 also have lower rails 29, which are open downwards. In this example, the lower rails have a C-shaped profile.

[0055] In one variant, the lower surface 24 of the outlet box 12 also includes the inner surface of the lower rail 29.

[0056] The support structure 14 includes, for example, two supports 38. The supports 38 connect the seat(s) 8 to the side wall 2 of the rail vehicle 1. They serve to support the seats 8 against the side wall 2.

[0057] The supports 38 are spaced apart from each other along a direction that extends transversely to the longitudinal direction. In the illustrated example, each support is arranged on a respective longitudinal side of the outlet box 12.

[0058] In the exemplary embodiment of the Fig. 1 Each support 38 extends substantially below the outlet box 12.

[0059] Each support 38 comprises a wall fixing 40, a support strut 42 and at least one cross strut 44.

[0060] The wall mounting 40 extends essentially parallel to the side wall 2 and is supported in particular over its entire surface on the side wall 2.

[0061] In the illustrated example, the wall mounting 40 is designed as a plate 41. The plate 41 is, for example, a sheet metal part. The plate 41 has any suitable shape, and is, for example, trapezoidal. The plate 41 is attached to the side wall 2. Preferably, the plate 41 is screwed to the side wall 2.

[0062] The support strut 42 connects the wall mounting 40 to an underside of the seat(s) 8. In the exemplary embodiment according to Fig. 1 connects the support strut 42 to the wall mounting 40 via the outlet box 12 with an underside of the seat(s) 8.

[0063] In the exemplary embodiment according to Fig. 1 The support strut 42 extends from the wall mounting 40 to the lower surface 24 of the outlet box 12. It connects the wall mounting 40 with the lower surface 24 of the outlet box 12.

[0064] In this embodiment, the support strut 42, together with the wall mounting 40 and the lower surface 24, forms essentially a triangle in a side view in a plane parallel to the longitudinal direction L. This triangle extends in a perpendicular plane transverse to the side wall 2.

[0065] The support strut 42 forms an angle 40 between 20 and 80 degrees with the wall mounting 40, preferably an angle of about 60 degrees.

[0066] Preferably, an end 46 of the support strut 42 opposite the wall mounting 40 is attached to the outlet box 12, and preferably to the lower surface 24. It is particularly attached at a point on the lower surface 24 which is spaced from the side wall 2 along the longitudinal direction L by at least two-thirds of the total length of the lower surface 24.

[0067] The end 46 of the support strut 42 opposite the wall mounting 40, as well as the cross strut(s) 44, comprise devices complementary to the lower rail 29, which are suitable for engaging in the lower rail 29.

[0068] In the illustrated example of the Fig. 1. The support strut 42 is straight over at least 90% of its length. In this example, the support strut 42 has an end section 47 at its end 46 opposite the wall mounting 40, which is bent upwards towards the outlet box 12 and whose upper end is attached to the outlet box 12. In this example, the bent end section 47 extends substantially parallel to the cross strut(s) 42.

[0069] The support strut 42, for example, has a substantially rectangular cross-section. The support strut 42 is, for example, shaped as a tube or square tube, i.e., hollow. Alternatively, the support strut 42 is solid.

[0070] The cross brace(s) 44 connect the support brace 42 to the outlet box 12, and in particular to the lower surface 24. They are preferably arranged within the triangle formed by the support brace 42, the wall mounting 40 and the lower surface 24.

[0071] Preferably, the crossbars 44 are also attached to the lower surface 24.

[0072] In the preferred example of Fig. 1. The support 38 comprises two crossbars 44. Alternatively, the support 38 can also comprise more than two crossbars 44 or only a single crossbar 44. Preferably, the crossbars 44 are arranged substantially parallel to each other.

[0073] Each cross member 44, for example, has a substantially rectangular cross-section. Each cross member 44 is, for example, shaped as a tube or shaped tube, i.e., hollow. Alternatively, each cross member 44 is solid.

[0074] Support 38, for example, is made of metal, such as aluminum.

[0075] The Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. Figure 28 shows various alternative embodiments of the seat unit 4 and in particular of the seat support 10.

[0076] Similar elements to those already mentioned in the first embodiment with regard to the Fig. 1 described carry in the Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 The same reference symbols are used and are not described again.

[0077] The following describes exclusively the differences to the support strut 42 and the outlet box 12 according to the first embodiment, wherein in the Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 For the sake of clarity, no crossbars 44 are shown.

[0078] The embodiments of Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. 16 differ from the first embodiment only in the shape of the support 38, and in particular the support strut 42.

[0079] In the embodiments of the Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. 16 The outlet box 12 extends, as in the first embodiment, in the longitudinal direction L over the entire width of the seats 8 of the seat unit 4. In this context, the width of the seats is the dimension of the seats along the longitudinal direction L.

[0080] In the embodiments of the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. 16 is the support strut 42AA, ... AO connected at a connection point to the outlet box 12.

[0081] The terms “concave” and “convex” used in the following description are defined from a viewing direction of the seat(s) 8 of the seating unit 4.

[0082] As in the exemplary embodiment according to Fig. 2 the support struts 42AA, ... AO extend essentially below the outlet box, from the wall mounting 40 to the lower surface 24 of the outlet box 12.

[0083] In the exemplary embodiment according to Fig. 2 The support strut 42AA is convexly bent. In the exemplary embodiment according to Fig. 2 The connection point is located at an end of the outlet box 12 facing away from the side wall 2. A connection point positioned in this way is referred to as the first connection point.

[0084] In the exemplary embodiment according to Fig. 3 The support strut 42AB is convexly bent. In the exemplary embodiment according to Fig. 3 The connection point is located approximately midway between the side wall 2 and the end of the outlet box 12 facing away from the side wall 2. A connection point positioned in this way is referred to as the second connection point.

[0085] In the exemplary embodiment according to Fig. 4 The support strut 42AC is convexly bent. In the exemplary embodiment according to Fig. 4 The connection point is located approximately in the first third of the length of the outlet box 12, viewed longitudinally L from the side wall 2. A connection point positioned in this way is referred to as the third connection point.

[0086] In the exemplary embodiment according to Fig. 5 The support strut 42AD is bent concavely. In this embodiment, the support strut 42AD is connected to the outlet box 12 at the first connection point.

[0087] In the exemplary embodiment according to Fig. 6 The support strut 42E is bent concavely. In this embodiment, the support strut 42AE is connected to the outlet box 12 at the second connection point.

[0088] In the exemplary embodiment according to Fig. 7 The support strut 42F is bent concavely. In this embodiment, the support strut 42AF is connected to the outlet box 12 at the third connection point.

[0089] In the exemplary embodiment according to Fig. 8 is the support strut 42G straight. In this embodiment, the support strut 42AG is connected to the outlet box 12 at the first connection point.

[0090] In the exemplary embodiment according to Fig. 9 is the support strut 42AH straight. In this embodiment, the support strut 42AH is connected to the outlet box 12 at the second connection point.

[0091] In the exemplary embodiment according to Fig. 10, the support strut 42AI is straight. In this embodiment, the support strut 42AI is connected to the outlet box 12 at the third connection point.

[0092] In the exemplary embodiments according to the Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. The support strut 42AJ, ... AO comprises a first and a second straight section 50, 52, which form an angle to each other. This angle is neither zero nor 180 degrees.

[0093] In the exemplary embodiment according to Fig. 11 is the first straight section 50 of the support strut 42AJ, which is closer to the side wall 2 and arranged at a steeper angle than the second straight section 52 of the support strut 42AJ.

[0094] A section 50, 52 is arranged at a steeper angle, in particular, if the longitudinal axis of the section 50, 52 in question forms a larger angle with a horizontal surface than a section 50, 52 that is arranged at a less steep angle. The horizontal surface extends orthogonally to the side wall 2 of the rail vehicle 1. The horizontal surface extends, for example, parallel to the exhaust grille 30 and to the upper wall 20 ( Fig. 1).

[0095] The first and second sections 50, 52 are connected to each other at a support joint. In the exemplary embodiment according to Fig. The first and second sections have different lengths of 50 and 52, respectively. In this example, the support connection point is located approximately in the first third of the length of the outlet box 12, viewed longitudinally L from the side wall 2.

[0096] In the exemplary embodiment according to Fig. 11 the support strut 42AJ is connected to the outlet box 12 at the first connection point.

[0097] In the exemplary embodiment according to Fig. In this embodiment, the first section 50 of the support strut 42AK is arranged at a steeper angle than the second section 52. The support connection point is located approximately midway between the side wall 2 and the end of the outlet box 12 facing away from the side wall 2. The support strut 42AK is connected to the outlet box at the first connection point.

[0098] In the exemplary embodiment according to Fig. In this embodiment, the second section 52 of the support strut 42AL is arranged at a steeper angle than the first section 50. The support connection point is located approximately two-thirds of the total length of the lower surface 24 ( Fig. 1) is spaced away from the side wall 2. The support strut 42AL is connected to the outlet box 12 at the first connection point.

[0099] In the exemplary embodiment according to Fig. In section 14, the second section 52 of the support strut 42AM is arranged at a steeper angle than the first section 50. The support connection point is located approximately midway between the side wall 2 and the end of the outlet box 12 facing away from the side wall 2. The support strut 42AM is connected to the outlet box 12 at the first connection point.

[0100] In the exemplary embodiment according to Fig. In section 15, the first section 50 of the support strut 42AN is arranged at a steeper angle than the second section 52. The support connection point is approximately one-third of the total length of the lower surface 24 ( Fig. 1) spaced from the side wall 2. The support strut 42AN is connected to the outlet box 12 at the second connection point.

[0101] In the exemplary embodiment according to Fig. 16 The second section 52 of the support strut 42AO is arranged at a steeper angle than the first section 50. The support connection point is approximately one-third of the total length of the lower surface 24 ( Fig. 1) spaced from the side wall 2. The support strut 42AO is connected to the outlet box 12 at the second connection point.

[0102] The following will be discussed with regard to the Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28, exclusively the differences to the support strut 42 and the outlet box 12 according to the first embodiment are described.

[0103] In the embodiments of the Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28. An outlet box 13 extends exclusively over a portion of the width of the seats 8 of the seat unit 4 in the longitudinal direction L. The outlet box 13 otherwise preferably has the features of the outlet box 12 of the first embodiment of Fig. 1 on.

[0104] In the embodiments of the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15 to Fig. 16 is the support strut 42BA, ... BL connected at a connection point to an underside of the seats 8.

[0105] In the exemplary embodiment according to Fig. 17 The support strut 42BA is convexly curved. The support strut 42BA is connected to the underside of the seats 8, with the connection point of the support strut 42BA to the underside of the seats 8 being located at an end of the underside of the seats 8 facing away from the side wall 2. A connection point positioned in this way is referred to as the fourth connection point.

[0106] In the exemplary embodiment according to Fig. 18 The support strut 42BB is convexly bent. The support strut 42BB is connected to an underside of the seats 8, the connection point of the support strut 42 with the underside of the seat 8 being located approximately midway between the side wall 2 and the end of the underside of the seats 8 facing away from the side wall 2.

[0107] A connection point positioned in this way is called a fifth connection point.

[0108] In the exemplary embodiment according to Fig. 19 The support strut 42BC is concavely bent. The support strut 42BC is connected to the underside of the seats 8 at the fourth connection point.

[0109] In the exemplary embodiment according to Fig. The support strut 42BD is concavely bent. The support strut 42BD is connected to the underside of the seats 8 at the fifth connection point.

[0110] In the exemplary embodiment according to Fig. 21 is the straight support strut 42BE. The support strut 42BE is connected to the underside of the seats 8 at the fourth connection point.

[0111] In the exemplary embodiment according to Fig. 22 is the straight support strut 42BF. The support strut 42BF is connected to the underside of the seats 8 at the fifth connection point.

[0112] In the exemplary embodiments according to the Fig. 23, Fig. 24, Fig. 25, Fig. 26, Fig. 27 to Fig. 28 The support strut 42BG, ... 42BL consists of the first and the second straight sections 50, 52, which form an angle to each other. This angle is neither zero nor 180 degrees.

[0113] In the exemplary embodiment according to Fig. 23 is the first straight section 50 of the support strut 42BG, which is closer to the side wall 2 and is arranged at a steeper angle than the second straight section 52 of the support strut 42BG. In the exemplary embodiment according to Fig. The support connection point 23 is located approximately in the first third of the width of the underside of the seats 8, viewed longitudinally L from the side wall 2. The support strut 42BG is connected to the underside of the seats 8 at the fourth connection point.

[0114] In the exemplary embodiment according to Fig. In section 24, the first section 50 of the support strut 42BH is arranged at a steeper angle than the second section 52. The support connection point is located approximately midway between the side wall 2 and the end of the underside of the seats 8 facing away from the side wall 2. The support strut 42BH is connected to the underside of the seats 8 at the fourth connection point.

[0115] In the exemplary embodiment according to Fig. In section 25, the second section 52 of the support strut 42BI is arranged at a steeper angle than the first section 50. The support connection point is spaced approximately two-thirds of the total length of the underside of the seats 8, viewed longitudinally L from the side wall 2. The support strut 42BI is connected to the underside of the seats 8 at the fourth connection point.

[0116] In the exemplary embodiment according to Fig. 26 The second section 52 of the support strut 42BJ is arranged at a steeper angle than the first section 50. The support connection point is located approximately midway between the side wall 2 and the end of the underside of the seats 8 facing away from the side wall 2. The support strut 42BJ is connected to the underside of the seats 8 at the fourth connection point.

[0117] In the exemplary embodiment according to Fig. In section 27, the first segment 50 of the support strut 42BK is arranged at a steeper angle than the second segment 52. The support connection point is spaced from the side wall 2 by approximately one-third of the total length of the underside of the seats 8, viewed longitudinally L from the side wall 2. The support strut 42BK is connected to the underside of the seats 8 at the fifth connection point.

[0118] In the exemplary embodiment according to Fig. In section 28, the second segment 52 of the support strut 42BL is arranged at a steeper angle than the first segment 50. The support connection point is spaced from the side wall 2 by approximately one-third of the total length of the underside of the seats 8, viewed from the side wall 2 in the longitudinal direction L. The support strut 42BL is connected to the underside of the seats 8 at the fifth connection point.

[0119] The Fig. Figure 29 shows a further embodiment. Only the differences from the first embodiment are described.

[0120] In the exemplary embodiment according to Fig. 29 The support strut 42C comprises a plate, and in particular a sheet. For example, the plate has a triangular contour. In the Fig. In the example shown in Figure 29, a first triangular side 60 of the support strut 42C rests against the outlet box 12, and in particular against a bottom side of the outlet box 12, a second triangular side 62 rests against the side wall 2 of the rail vehicle 1 via the wall mounting 40, and a third triangular side 64 connects the second triangular side 62 with the first triangular side 60.

[0121] The support strut 42 thus extends essentially below the lower surface 42 of the outlet box 12.

[0122] The support strut 42C, for example, extends over the entire length of the outlet box 12.

[0123] Advantageously, the sheet metal has bulges 66, which are formed, for example, by pressing. These bulges 66 serve to reinforce the support strut 42C.

[0124] In the exemplary embodiment according to Fig. 29 The air outlet grille 31 is formed by a plate which has a plurality of outlet holes, which are formed in particular by punching. The plate is preferably made of sheet metal.

[0125] In the exemplary embodiment of Fig. 29 The wall mounting 40 is designed as an I-shaped plate. However, the plate can have any other suitable shape.

[0126] In this embodiment, the supports 38 do not have cross braces 44.

[0127] The following describes a method for ventilating a rail vehicle 1 which has a seating unit 4.

[0128] In this process, air is guided through the air duct 6 of the side wall 2 into the air duct 26 of the seat unit 4. The air is first brought to the desired temperature, for example by a suitable heat exchanger (not shown).

[0129] The air then flows through the air outlet grille 30 from the outlet box 12 into the passenger compartment. The air flowing from the seat support 10 is displacement air. It flows from the outlet box into the passenger compartment at a maximum velocity of 0.25 m / s.

[0130] The outgoing air exhibits a temperature difference of approximately 2 to 4 Kelvin compared to the temperature of the surroundings of the seat support 10, particularly the passenger compartment. Specifically, it exhibits a temperature difference of approximately 2 to 4 Kelvin below the temperature in the passenger compartment.

[0131] The seat support 10 increases the comfort of the passengers, as they are not disturbed by drafts thanks to the special design of the outlet box 12.

[0132] In fact, the outlet box 12 according to the invention makes it possible to let the air flow out as source air, that is to say in particular with a maximum speed of 0.25 m / s, without negative effects on the ventilation capability.

[0133] Furthermore, despite the integrated air channel 26 and cantilever design in the seat carrier 10, the seat unit 4 is sufficiently stable thanks to the special design of the support structure 14 to absorb forces without permanently deforming significantly.

[0134] The optional reinforcement walls also strengthen the outlet box 12, particularly against deformation caused by torsion.

[0135] The embodiment in which each support 38 comprises exactly two crossbars 44 makes it possible to achieve an optimum of sufficient stability of the seat support 10 and the lowest possible weight.

Claims

[1] Seating unit (4) for a rail vehicle (1) comprising at least one seat (8) and a seat support (10) for supporting the seat(s) (8), each seat (8) forming a seating place, characterized by that the seat support (10) has an outlet box (12) and a support structure (14) which supports the seat(s) (8), wherein the outlet box (12) forms an air duct (26) and includes a lower surface (24) which has an air outlet grille (30, 31) which has an outlet area of ​​at least 850 cm² 2per seat, wherein the support structure (14) comprises a wall mounting (40) for attaching the seat support (10) to a side wall (2) of the rail vehicle (1) and a support strut (42, 42AA, ... 42BL), wherein the support strut (42, 42AA, ... 42BL) connects the wall mounting (40) to the lower surface (24) of the outlet box (12), wherein the outlet box (12) further comprises an upper wall (20) and two side walls (22), wherein the upper wall (20) is arranged above the air outlet grille (30, 31) and parallel to the air outlet grille (30, 31) and the side walls (22) connect the upper wall (20) to the air outlet grille (30, 31), and the upper wall (20) forms a support surface for the seat(s) (8). [2] Seat unit (4) according to claim 1, characterized by , that the seat(s) (8) are supported exclusively on the side wall (2) of the rail vehicle (1) via the seat support (10). [3] Seating unit (4) according to one of claims 1 or 2, characterized by , that the support structure (14) further comprises at least one cross brace (44) which connects the support brace (42, 42AA, ... 42BL) to the lower surface (24) of the outlet box (12). [4] Seating unit (4) according to any one of claims 1 to 3, characterized by , that the outlet box (12) has rails (28) for attaching the seat(s) (8), which are arranged laterally on each longitudinal side of the outlet box (12) and extend parallel to a longitudinal direction (L) of the air duct (26). [5] Seat unit (4) according to any one of claims 1 to 4, characterized by that the air outlet grille (30, 31) extends over at least 80% of the lower surface (24). [6] Seating unit (4) according to any one of claims 1 to 5, characterized by , that the air outlet grille (30, 31) has air outlet holes which are evenly distributed over the surface of the air outlet grille (30). [7] Seat unit (4) according to any one of claims 1 to 6, characterized by , that the outlet box (12) has at least one reinforcing wall arranged in the air duct (26), which extends substantially transversely to a longitudinal direction (L) of the air duct (26). [8] Seat unit (4) according to any one of claims 1 to 7, characterized by , that the outlet box (12) extends over the entire width of the seat(s) (8) of the seat unit (4). [9] Rail vehicle (1) comprising at least one side wall (2) which has at least one air duct (6), characterized by , that the rail vehicle (1) further comprises a seat unit (4) according to one of claims 1 to 8, wherein the air duct (6) of the side wall (2) opens into the air duct (26) of the seat support (10). [10] Method for ventilating a rail vehicle (1) comprising a seat unit (4) according to any one of claims 1 to 8, wherein the air flows out of the seat support (10) at a maximum speed of 0.25 m / s. [11] Method for ventilation according to claim 10, wherein the air flowing out of the seat support (10) has a temperature difference of about 2 to 4 Kelvin compared to a temperature of an environment of the seat support (10).

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