Abstract
The application relates to roof segments for constructing a roof of a carriage body for a rail vehicle for passenger transport, in particular for use in short-haul operation, such as underground and suburban trains, the rail vehicles or the train units formed by same must be accelerated and decelerated at short intervals. The roof segments are designed in the form of plates, shells or half-shells and consist of an outer wall and an inner wall at a distance to same. At least two roof segments are configured in such a way that the protruding region of the outer wall or inner wall of one roof segment is interlockingly, force-lockingly and/or integrally connected to the non-protruding region of the outer wall or inner wall of the neighbouring roof segment. The roof segments consist at least partially of a fibre-reinforced plastic composite.
Claims
1. Roof segment for the construction of a roof of a coach body for a rail vehicle, wherein the roof segment is formed plate-, shell- or half-shell-shaped, the roof segment consists of an outer wall and an inner wall spaced apart therefrom, at least two roof segments are designed such that the projecting area of the outer wall of the one roof segment is connected to the non-projecting area of the outer wall of the adjacent roof segment and the projecting area of the inner wall of the one roof segment is connected to the non-projecting area of the inner wall of the adjacent roof segment in a positive-locking, friction-locking and/or material-bonded manner, and the roof segment consists at least partially of fibre-reinforced plastic composite.
2. Roof segment according to claim 1, wherein the fibre-reinforced plastic composite comprises glass, carbon, aramid, basalt, textile and/or natural fibres in a matrix made of thermoplastics or thermosetting plastics.
3. Roof segment according to claim 1, wherein the thermosetting plastics comprise epoxy resins, unsaturated polyester resins, PU resins, vinyl ester resins or phenolic resins.
4. Roof segment according to claim 1, wherein the fibres of the fibre-reinforced plastic composite are oriented unidirectionally and/or multiaxially.
5. Roof segment according to claim 1, wherein the fibres of the fibre-reinforced plastic composite are introduced as rovings, non-woven fabrics, non-crimp fabrics, woven fabrics and/or meshwork.
6. Roof segment according to claim 1, wherein the outer wall and inner wall of the roof segments are connected by a middle layer, wherein the middle layer has a foam core and/or honeycomb core and/or wood core.
7. Roof segment according to claim 1, wherein the middle layer, as a fibre-reinforced plastic composite which is formed of one or more plies, connects the inner and the outer wall with an alternating pattern, and formed cavities are filled with foam and/or honeycomb cores and/or wood cores.
8. Roof segment according to claim 1, wherein the plate-, shell- or half-shell-shaped roof segments are connected to an upper longitudinal beam in a friction- and/or positive-locking and/or material-bonded manner.
9. Roof segment according to claim 1, wherein the roof segments of a coach body comprise at least one standard-type roof segment, at least one heating-ventilation-air conditioning-type roof segment and two end-type roof segments.
10. Roof of a coach body, characterized in that the roof assembly is composed of roof segments according to claim 1, wherein the roof assembly comprises two end-type roof segments, at least one heating-ventilation-air conditioning roof segment and at least two standard-type roof segments.
11. Use of the roof segments according to claim 1 for the construction of a roof for the coach body of a rail vehicle for transporting passengers for use in short distance operation, such as in underground and suburban railways, in which the rail vehicles or the train units formed of them are speeded up and slowed down at short intervals.
12. Roof segment according to claim 2, wherein the thermosetting plastics comprise epoxy resins, unsaturated polyester resins, PU resins, vinyl ester resins or phenolic resins.
13. Roof segment according to claim 2, wherein the fibres of the fibre-reinforced plastic composite are oriented unidirectionally and/or multiaxially.
14. Roof segment according to claim 3, wherein the fibres of the fibre-reinforced plastic composite are oriented unidirectionally and/or multiaxially.
15. Roof segment according to claim 2, wherein the fibres of the fibre-reinforced plastic composite are introduced as rovings, non-woven fabrics, non-crimp fabrics, woven fabrics and/or meshwork.
16. Roof segment according to claim 3, wherein the fibres of the fibre-reinforced plastic composite are introduced as rovings, non-woven fabrics, non-crimp fabrics, woven fabrics and/or meshwork.
17. Roof segment according to claim 4, wherein the fibres of the fibre-reinforced plastic composite are introduced as rovings, non-woven fabrics, non-crimp fabrics, woven fabrics and/or meshwork.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0051] The invention is explained in more detail with reference to drawings. There are shown in:
[0052] FIG. 1 exploded drawing of a coach body with the roof segments according to the invention,
[0053] FIG. 2 standard-type roof segment of the coach body in an exploded perspective view and in a perspective view in the assembled state,
[0054] FIG. 3 heating-ventilation-air conditioning-type roof segment of the coach body in an exploded perspective view,
[0055] FIG. 4 end-type roof segment of the coach body in an exploded perspective view.
DETAILED DESCRIPTION
[0056] FIG. 1 shows an exploded drawing of a coach body 1 in which the roof segments according to the invention are installed as a standard-type roof segment 201, end-type roof segment 202 and heating-ventilation-air conditioning-type roof segment 203. Furthermore, the following components of the coach body are represented: the upper longitudinal beams 601 and the lower longitudinal beams 602, the side wall segments 301, the vertical pillars 304, the end wall 501 and the base segments 401.
[0057] FIG. 2 shows a standard-type roof segment 201 of the coach body in an exploded perspective view (FIG. 2A) as well as a cross section through two adjacent standard-type roof segments 201 (FIG. 2B) during installation. The standard-type roof segment 201 is manufactured with an overall height of 50 mm. The standard-type roof segment 201 has an inner wall 205 and an outer wall 204, with an overall thickness of 1.0 mm and 2.0 mm respectively, and consisting of individual plies with a thickness of 0.5 mm and a weight per unit area of 400 g/m2. The carbon fibres are introduced into the plastic matrix made of epoxy resin in the form of a bidirectional non-crimp fabric and run in the 0° and 90° directions. Rectangular hollow profiles 207 are arranged, as reinforcing elements, between the inner wall 205 and the outer wall 204 of the standard-type roof segment 201 along the outer edges of the roof segment 201, and adhesively bonded to the outer wall 204. This is a conventional structural bonding with an adhesive gap of 0.25-0.40 mm. The rectangular hollow profiles 207 with a size of 100 mm×46.5 mm and a wall thickness of 1.5 mm are braided directly onto a PET rigid foam core in a braiding process (pullbraiding process), wherein the fibres have a fibre orientation in the ±45° direction and are embedded in a thermosetting matrix made of epoxy resin. A flat core material 206, formed as a PET rigid foam core made of Airex T90.60, is arranged between the inner wall 205 and the outer wall 204 and the frame made of rectangular hollow profiles filled with PET foam, and adhesively bonded to the outer wall 204. This is a conventional structural bonding with an adhesive gap of 0.25-0.40 mm. The completion of a standard-type roof segment 201 is effected in a pressing process in order to produce the connection to the inner wall 205 and to form the final shape of the standard-type roof segment 201 including the joints 208 for the connection to further roof segments (not represented). FIG. 2B illustrates the positive-locking connection between adjacent standard-type roof segments 201 via the joints 208 existing after the installation in addition to the material-bonded adhesive connection.
[0058] FIG. 3 shows a heating-ventilation-air conditioning roof segment 203 of the coach body in an exploded perspective view. The heating-ventilation-air conditioning roof segment 203 is manufactured with an overall height of 50 mm. The heating-ventilation-air conditioning roof segment 203 has an inner wall 205 and an outer wall 204, with an overall thickness of 1.0 mm and 2.0 mm respectively, and consisting of individual plies with a thickness of 0.5 mm and a weight per unit area of 400 g/m2. The carbon fibres are introduced into the plastic matrix made of epoxy resin in the form of a bidirectional non-crimp fabric and run in the 0° and 90° directions. Rectangular hollow profiles 207 are arranged, as reinforcing elements, between the inner wall 205 and the outer wall 204 of the heating-ventilation-air conditioning roof segment 203 along the outer edges of the heating-ventilation-air conditioning roof segment 203, and adhesively bonded to the outer wall 204. This is a conventional structural bonding with an adhesive gap of 0.25-0.40 mm. The rectangular hollow profiles 207 with a size of 100 mm×46.5 mm and a wall thickness of 1.5 mm are braided directly onto a PET rigid foam core in a braiding process (pullbraiding process), wherein the fibres have a fibre orientation in the ±45° direction and are embedded in a thermosetting matrix made of epoxy resin. A flat core material 206, formed as a PET rigid foam core made of Airex T90.60, is arranged between the inner wall 205 and the outer wall 204 and the frame made of rectangular hollow profiles 207 filled with PET foam, and adhesively bonded to the outer wall 204. This is a conventional structural bonding with an adhesive gap of 0.25-0.40 mm. The completion of a heating-ventilation-air conditioning roof segment 203 is effected in a pressing process in order to produce the connection to the inner wall 205 and to form the final shape of the heating-ventilation-air conditioning roof segment 203 including the joints 208 for the connection to further roof segments 203 (not represented). Furthermore, the heating-ventilation-air conditioning roof segment 203 comprises slots 209 which are each arranged uniformly in the inner wall 205, the outer wall 204 and the core material 206 and serve for ventilation.
[0059] FIG. 4 shows an end-type roof segment 202 of the coach body in an exploded perspective view. The end-type roof segment 202 is manufactured with an overall height of 50 mm. The end-type roof segment 202 has an inner wall 205 and an outer wall 204, with an overall thickness of 1.0 mm and 2.0 mm respectively, and consisting of individual plies with a thickness of 0.5 mm and a weight per unit area of 400 g/m2. The carbon fibres are introduced into the plastic matrix made of epoxy resin in the form of a bidirectional non-crimp fabric and run in the 0° and 90° directions. Rectangular hollow profiles 207 are arranged, as reinforcing elements, between the inner wall 205 and the outer wall 204 of the end-type roof segment 202 along the outer edges of the end-type roof segment 202, and adhesively bonded to the outer wall 204. This is a conventional structural bonding with an adhesive gap of 0.25-0.40 mm. The rectangular hollow profiles 207 with a size of 100 mm×46.5 mm and a wall thickness of 1.5 mm are braided directly onto a PET rigid foam core in a braiding process (pullbraiding process), wherein the fibres have a fibre orientation in the ±45° direction and are embedded in a thermosetting matrix made of epoxy resin. A flat core material 206, formed as a PET rigid foam core made of Airex T90.60, is arranged between the inner wall 205 and the outer wall 204 and the frame made of rectangular hollow profiles filled with PET foam, and adhesively bonded to the outer wall. This is a conventional structural bonding with an adhesive gap of 0.25-0.40 mm. The completion of an end-type roof segment 202 is effected in a pressing process in order to produce the connection to the inner wall 205 and to form the final shape of the end-type roof segment 202 including the joints 208 for the connection to further roof segments 202 (not represented). Furthermore, the end-type roof segment 202 comprises slots 209 which are each arranged uniformly in the inner wall 205, the outer wall 204 and the core material 206 and serve for ventilation.
REFERENCE NUMBERS
[0060] 1 coach body [0061] 201 standard-type roof segment [0062] 202 end-type roof segment [0063] 203 heating-ventilation-air conditioning-type roof segment [0064] 204 outer wall of the roof segment [0065] 205 inner wall of the roof segment [0066] 206 core material [0067] 207 rectangular hollow profiles [0068] 208 joint to adjoining roof segment [0069] 209 slot [0070] 301 side wall segment [0071] 304 vertical pillar [0072] 401 base segment [0073] 501 end wall [0074] 601 upper longitudinal beam [0075] 602 lower longitudinal beam
