Floor construction in a rail vehicle

Abstract

The invention relates to a floor structure in a rail structure, with a cavity in which an insulation part (1) is arranged, wherein the cavity has a lower support part (9) and an upper cover part (8), wherein the insulation part (1) further has an insulation element (2) and a spacer element (3), and is made to rest on the support part (9) by means of the spacer element (3). In order to advantageously configure the insulation part (1), it is provided that the insulation element (2) consist of the same material as the spacer element (3), and that the spacer element (3) have a jagged structure (4) that interacts with the support part (9) so as to leave channel areas (5), in which liquid, in particular such as condensation water, can collect and drain.

Description

Area of Technology

[0001] The invention relates to a floor construction in a railway vehicle, with a cavity in which an insulation part is arranged, wherein the cavity has a lower support part and an upper cover part, wherein the insulation part further has an insulation element and a spacer element, and is made to rest on the support part by means of the spacer element.Prior Art

[0002] Known from EP 3 820 757 B1 is a floor construction in a railway vehicle in which a drainage insulation is secured underneath an insulation material. The insulation material consists of mineral wool. In terms of prior art, reference must additionally be made to EP 2 621 785 B1. Also provided in the floor construction known from the latter is an insulation layer, which likewise consists of mineral wool.Summary of the Invention

[0003] Proceeding from the described prior art, the invention focuses on the object of indicating an advantageous floor construction in a railway vehicle.

[0004] This object is achieved in the subject matter of claim 1, wherein emphasis is placed on the insulation element consisting of the same material as the spacer element, and on the spacer element having a jagged structure that interacts with the support part so as to leave channel areas, in which liquid, in particular such as condensation water, can collect and drain.

[0005] Having the insulation element consist of the same material not only enables low-cost production, it also provides for recyclability. Since the spacer element further consists of the same material as the insulation element, but additionally has a jagged structure, it can exert the same effect as the insulation element, even with respect to insulation, while its jagged structure simultaneously allows it to leave channel areas, in which condensation water or the like can collect and possibly drain. The jagged structure is visible in cross section. In particular in a vertical section in relation to the installation state. The outer edges of the insulation part are jagged on the floor side in relation to the installation state. They have hills and valleys. By contrast, it is possible to provide a straight contour on the upper side and possibly also on the edge side, or a contour adjusted to the installation space.

[0006] The insulation element and the spacer element are preferably formed together as a single piece. The insulation part can be handled and built in as a complete part. It is further preferably also formed as a materially uniform single part. As a consequence, the insulation part preferably involves a part which as a whole consists only of a single, identical material.

[0007] The insulation part can further have a multilayer structure, with the insulation element being formed by an insulation layer in a first layer, and the spacer element being formed by a spacer layer in a second layer.

[0008] It is further preferred that the insulation part consist of a fiber material. As a result, it is preferably permeable in design overall, but the fibers give it a good cohesion and an advantageous insulation effect. The fiber material preferably leaves porous gaps. The fibers are partially connected with each other. The connection might be given by (partial) melting of the fibers themselves. If necessary, repeatedly over their length. However, they are unconnected to an adjacent fiber over a portion of their length, if necessary multiple times, can thus leave a gap.

[0009] The fiber material can further preferably consist of polyester fibers.

[0010] In addition, it is preferred that the fibers of the fiber material be hydrophobic. They can be naturally hydrophobic, or made hydrophobic, for example by a coating.

[0011] With respect to the fiber material, the insulation element and / or the spacer element, preferably both together, can alternatively also consist of a foam. Different foams are possible, such as polyethylene foam, melanine foam, polyurethane foam, polystyrene foam etc. In particular a polyethylene foam is here preferred.Brief Description of the Drawings

[0012] The invention is further described below based on the attached drawing, but one that only shows an exemplary embodiment. Shown here on: Fig. 1is a cross section through a first insulation part; Fig. 2is a cross section through a second insulation part; Fig. 3is a bottom view of the insulation part according to Fig. 1 or Fig. 2; and Fig. 4is an exemplary floor construction of a rail vehicle with an insulation part. Description of the Embodiments

[0013] Initially shown and described with reference to Figures 1 to 3 is an insulation part. The insulation part 1 according to Figure 1 has an insulation element 2 and a spacer element 3.

[0014] Both the insulation element 2 and the spacer element 3 are fabricated out of an identical material, specifically out of a fiber material in the exemplary embodiment on Figure 1. Preferably polyester fibers are here involved.

[0015] The spacer element 3 has a jagged structure 4, by means of which it can leave channel areas 5 in the installation state, as yet to be explained further below, in which liquid, in particular condensation water, can collect and if necessary drain.

[0016] The insulation element 2 and the spacer element 3 are together designed as a single part. Accordingly, the insulation part 1 involves a part that can be uniformly handled overall. The insulation element 2 and the spacer element 3 can consist of distinguishable layers in the insulation part 1. Layers arranged vertically one above the other are involved in the installation state.

[0017] In order to form the insulation part 1, the layers, the insulation element 2 and the spacer element 3 can here initially be fabricated separately from each other. In addition, they can then be adhesively bonded with each other, or for example laminated with each other. In the latter case, fusible constituents of the material can themselves result in the adhesion, wherein a separate adhesive can also be added in the former case.

[0018] The insulation element 2 and the spacer element 3 further preferably have different densities. The spacer element 3 preferably has a density of 25 kg / m 3< to 35 kg / m 3< , further preferably of about 30 kg / m 3< . The insulation element 2 preferably has a density of between 15 kg / m 3< and 20 kg / m 3< .

[0019] The insulation element 2 and the spacer element 3 further preferably have different thicknesses d 1 and d 2 . While the thickness d 1 of the insulation element 2 can preferably measure 5 mm to 130 mm, the thickness d 2 of the spacer element 3 can preferably measure 10 mm to 50 mm. The overall thickness of the insulation part 1 thus preferably measures between 10 mm and 170 mm.

[0020] As also shown on Figure 1, there is a separating line T between the upper insulation in the installation state and the lower spacer layer, in particular in relation to the installation state, given an insulation part 1 that is uniformly continuous, in particular straight, as shown. In the installation state, a horizontal separating line T is then preferably involved.

[0021] The embodiment on Figure 2 involves an insulation part 1 which is manufactured based on fibers or based on foam. It is preferably fabricated to be uniformly continuous in relation to the insulation element 2 and the spacer element 3, without any separation, and thus in this respect is also present as a uniform, in particular materially uniform, part.

[0022] The insulation part 1 according to Figure 2 also has the lower jagged area 4, but further preferably has no separation between the insulation layer and the spacer layer. In particular, the insulation part 1 preferably has no discernible separating line T.

[0023] The jagged structure 4 can be fabricated in different ways. For example, the depicted cross section involves a simple zigzag pattern. A crenelated contour can also be involved, i.e., in which essential areas are overlying and others recessed. An essentially irregular structure can also be involved.

[0024] The preferred structure is a relief structure, for example of the kind known from DE 26 25 168 B1.

[0025] As may also be gleaned from the bottom view on Figure 3, overlapping fields F 1 , F 2 , etc. can be formed. Each field F 1 , F 2 can have a plurality of ribs 6 that run roughly parallel to each other, wherein these ribs 6 each run into a transverse rib 7. This leads to a blocking of the channel areas 5 formed in this way, so that any condensation water that collects is always localized to some degree. However, the fiber structure allows it to continue diffusing nonetheless. This relates to the embodiment on Figure 1.

[0026] In the embodiment on Figure 2, an essentially permanent localization can also be achieved in particular when using closed-cell foam, as is preferred.

[0027] Shown with reference to Figure 4 is an in part perspective view of an exemplary floor structure in a railway vehicle.

[0028] The floor structure has an upper cover part 8 and a lower support part 9. In particular the lower support part 9 can further be additionally reinforced on the bottom side by a support structure 10.

[0029] An insulation part 1 of the kind described here is arranged between the cover part 8 and the support part 9.

[0030] The insulation part 1 interacts with the support part 9 to form channel areas 5, in which liquid, in particular such as condensation water, can collect and drain.

[0031] Additional structural parts not shown here in detail can be provided in the transverse direction and / or in the longitudinal direction of the floor structure between the cover part 8 and the support part 9, providing for the stability and leaving the cavity.

[0032] In a railway vehicle as addressed here, it may happen, that in the interior side of a wall water is condensed. This is then allowed to drain into the area under the cover part 8, respective openings might be provided for. Further, such condensed water will then further drain through or along the insulation part 1 described here until it will arrive in a channel areas 5. The respective panel of the support part 9 may have further holds or openings which allow then the condensed water to evacuate to the outside. Especially in case of an insulation part 1 made of fibers as described here, the condensed water may drop through the insulation part 1 and into the channel areas 5.Reference List

[0033] 1Insulation partd 1 Thickness2Insulation elementd 2 Thickness3Spacer elementF 1 Field4StructureF 2 Field5Channel areaTSeparating line6Ribs7Transverse rib8Upper cover part9Lower support part10Support structure

Claims

1. A floor structure in a railway vehicle, with a cavity in which an insulation part (1) is arranged, wherein the cavity has a lower support part (9) and an upper cover part (8), wherein the insulation part (1) further has an insulation element (2) and a spacer element (3), and is made to rest on the support part (9) by means of the spacer element (3), characterized in that the insulation element (2) consists of the same material as the spacer element (3), and the spacer element (3) has a jagged structure (4) that interacts with the support part (9) so as to leave channel areas (5), in which liquid, in particular such as condensation water, can collect and drain.

2. The floor structure according to claim 1, characterized in that the insulation element (2) and the spacer element (3) are formed as a single piece.

3. The floor structure according to claim 2, characterized in that the insulation element (2) and the spacer element (3) are materially uniform in design.

4. The floor structure according to one of the preceding claims, characterized in that the insulation part (1) has a multilayer structure, with the insulation element (2) being formed by an insulation layer in a first layer, and the spacer element (3) being formed by a spacer layer in a second layer.

5. The floor structure according to one of the preceding claims, characterized in that the insulation part (1) consists of a fiber material.

6. The floor structure according to claim 5, characterized in that the fiber material consists of polyester fibers.

7. The floor structure according to one of claims 5 or 6, characterized in that the fibers of the fiber material are hydrophobic.

8. The floor structure according to one of claims 1 to 4, characterized in that the insulation element (2) and the spacer element (3) consist of a foam.

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