• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Title: Floor system for a vehicle The invention relates to a floor system for creating a floor (2) in a passenger compartment of a vehicle, in which a base part (4) with a cup-shaped recess (12) and a floor plate (6) are applied to a floor supporting structure (8) and together constitute a usual construction height as well as cavities for receiving installation objects. Figure 1
    公开号:FR3085941A1
    申请号:FR1910178
    申请日:2019-09-16
    公开日:2020-03-20
    发明作者:Memis Tiryaki；Sven Werner；Torsten Noebel；Andre Zybala；Wolfgang Eilken
    申请人:Airbus Operations GmbH；
    IPC主号:
    专利说明:

    Description
    Title of the invention: Floor system for a vehicle
    FIELD OF THE INVENTION The present invention relates to a floor system for a vehicle, as well as to a vehicle having at least one such floor system.
    STATE OF THE ART Vehicles for transporting passengers or freight usually have a passenger compartment which is surrounded by a vehicle structure and which is provided, at least in part, with a floor. Depending on the construction of the vehicle, a particular construction of the floor can be obtained. In the case of passenger or freight aircraft, it is for example known to insert sandwich plates on floor supports. Sandwich sheets often have a honeycomb core to minimize weight which is surrounded by cover layers of fiber reinforced plastic. To connect such sandwich plates to a vehicle structure, special inserts are necessary which, during the manufacture of the sandwich plates, must be integrated into the latter. The inserts can be connected to the floor supports by screws.
    If a defect occurs in such a sandwich plate, its replacement may be necessary. Due to the complex construction, partly with individual inserts, and due to the expensive materials, considerable costs can be expected which can be further increased by the increased assembly costs.
    Object of the invention [0005] Consequently, an object of the invention consists in proposing an alternative structure of a floor, in which the manufacturing costs as well as the repair effort can be reduced.
    Description and advantages of the invention [0007] According to the invention, a floor system is proposed for a vehicle. The floor system has a base part intended to be placed on a vehicle floor supporting structure and a floor plate which can be placed on this base part. The base part has at least two edge surfaces and a bowl-shaped recess arranged between them to receive pipes, the base part having at least one reinforcing element disposed in the recess, which extends over the entire height of the recess. The floor plate and the at least one reinforcing element have first and second connection elements made in a complementary manner to each other which are made to connect removably so by engagement by correspondence of shapes, the floor plate and the '' at least one reinforcing element. At least a first connection element is arranged at at least one reinforcing element and at least a second connection element is arranged at a lower side of the floor plate. The floor plate is made corresponding to the base part so that it can be placed on the edge surfaces and on the at least one reinforcing component of the base part and the at least one second connection element is assembled with the at least one first connection element.
    The floor system according to the invention therefore consists of two main components which can be connected to each other by engagement by correspondence of shapes at least through the connection elements so as to be able to create a floor. Thanks to the edge surfaces of the base part, a building height necessary for the construction of the floor can be obtained by significantly thinner floor plates compared to the state of the art. However, these are supported on more support points than is possible in conventional constructions with thicker floor plates, without modifying the load-bearing structure of the floor. The functions and advantages of these components will be explained in more detail below.
    The base part forms, in the installed state, a lower component of a floor and can be connected to the supporting structure of the floor. It can be made of a material which does not correspond to the material used for the manufacture of the usual sandwich plates. It can be envisaged that the base part has on the whole an elongated shape. The base part could then for example extend parallel to a direction of main extent of the relevant passenger compartment of the vehicle.
    The passenger compartment, to receive the floor, may have an arrangement consisting of floor supports which could be arranged parallel and / or transverse to the direction of main extent of the passenger compartment and constitute the supporting structure of the floor. In aircraft interiors, at least floor supports are known which extend parallel to the longitudinal axis of the aircraft. Due to the spacing of the floor supports from each other, a maximum width of the recess in cross section of the base part is obtained. The base part must therefore be dimensioned so that it is suitable for the available construction space. This results in the recess of a base portion being located between adjacent floor supports.
    The base part should be adapted to be fixedly connected to the primary structure of the vehicle, in order to provide a durable and robust base for the floor. It is conceivable that the base part has, on sides opposite to the edge surfaces, bearing surfaces which are suitably sized to rest on the supporting structure of the floor. For fixing the base part, screwing means can be used which are screwed into the supporting structure of the floor. These could also extend through the floor plate located on the base part in order to fix the base part and the floor plate.
    The recess of a base part forms a type of bowl which is used to receive installation objects. The combination of the base part and the floor plate thus forms a housing with one or more included cavities through which the installation objects can extend. These could include electrical lines and electrical components. In addition to cables for a power supply, it is also possible to envisage data lines with which entertainment devices installed in a cabin can be supplied with content. Coils for inductive transfer of data or electrical power could also be mounted here.
    To create a sufficiently robust base to install relatively thin floor plates, using at least one reinforcing element. This is preferably arranged in the recess so that a symmetrical force transfer is obtained between the floor plate and the base part. If there is only a single reinforcing element in the recess, it could be placed in the center.
    The number and distribution of the reinforcing elements may depend on the surface load provided for the corresponding floor part. For example, if the recess has a relatively small width or is in a less crowded region of a cabin or in a part of a substantially unloaded hold, a single reinforcing element could be sufficient to obtain a desired support function for the floor plate. If the recess however extends over a relatively large width or concerns the floor of a more heavily loaded part, several reinforcing components could also be distributed in the recess.
    A reinforcing element preferably has a support edge or a straight continuous support surface on which the floor plate can rest. The reinforcing element can be manufactured integrally with the base part or be inserted later.
    The floor plates which can be placed on the base part can be produced as usual floor plates but with much thinner dimensions. For example, the thickness of a floor plate of the floor system according to the invention could measure 10 mm or less. The basic construction could however contain a low density core, for example a honeycomb core or a foam core and covering layers covering it.
    Completing the base part with a floor plate to create a floor makes it possible to envisage making the edge surfaces so that floor plates can have essentially the same embodiment and present at the edges always the same inserts to create a housing sufficiently resistant to pressure for screwing. Particularly in vehicles with a cross section narrowing in places and with a non-constant width of the passenger compartment, partly modified base parts could be used, which can close transition zones which are too small to receive a plate floors with the same dimensions as in adjacent regions. Such modified base parts could be partly thicker and be provided with a recess to receive a floor plate.
    In summary, the floor system according to the invention is able to use more economical and more easily replaceable floor plates, which can withstand the stresses expected. In addition, the floor system offers a possibility to simply hold cables and other installation objects and at the same time protect them from external influences.
    According to a particularly preferred embodiment, the first and second connection elements are made so as to establish a snap connection. Thus, the mounting of a floor plate is easier because a floor plate can, at least for pre-fixing, be snapped on by simple orientation and pressure on the reinforcing elements concerned. A more expensive fixing on the reinforcing elements is not necessary to obtain a sufficient support function by the reinforcing elements.
    The connection elements preferably extend each time along a cross section at the level of the at least one reinforcement element or of the floor plate. Since a more complex geometry is avoided, the correct application and orientation of the second connection element on the floor plate can be carried out very simply.
    The connection elements preferably extend each time along at least 90% of an available length of the at least one reinforcement element or of the floor plate. The orientation of the floor plate and the reinforcing member with respect to each other during mounting can therefore be improved. After assembly, shear or thrust stresses, in particular from the locally produced floor plate, can also be compensated to a greater extent.
    One of the first connection element and the second connection element could have a first profile cross section and the other among the first connection element and the second connection element could have a second profile cross section , the first profile cross section having a curvature, the second profile cross section having an undercut and the first profile cross section and the second profile cross section being made so that the curvature clicks into place by pressure in the undercut. The configuration of the connection elements is therefore very simple from the mechanical point of view and yet allows a secure connection. The curvature could be configured with a shape similar to a bead. The undercut is formed corresponding to the curvature and can preferably be reached by a slit. The second profile cross section should thus be produced so that by pressing the first profile cross section, a widening of the slot occurs so that the first profile cross section enters the undercut and that the slit then returns elastically to a relaxed position. The size of the slot and its shape depend, among other things, to obtain this function, on the choice of materials. The slot should in turn have a rounded profile to avoid damage during assembly.
    The curvature is preferably based on an arc shape or a drop shape. This means that the portion of the cross section of the profile forming the curvature has in part a shape of an arc of a circle or in a drop. The snap-fitting or nesting of the curvature in the recess is improved because the elastic extension and return of the slot leading to the undercut can be carried out smoothly.
    It is advantageous to glue the second connection elements on the lower side of the floor plate. Thus, second connection elements can be produced separately from the floor plates in order to cut and assemble them later. Therefore, the first assembly can also be carried out very economically and simply.
    According to a preferred embodiment, at least one of the connection elements has a metallic material. It could for example be the second connection element which is arranged at the level of the floor plate. However, in the case where the base part is made of a metallic material, the first connection element could also be made integrally with the reinforcing component concerned and therefore also be made of a metallic material. As suitable material, one could choose in particular aluminum which has a low density and, depending on the alloy used, a high solidity. However, care must be taken when selecting that the connection element with the undercut is also particularly flexible enough to allow snap-fitting or interlocking if desired.
    The base part may preferably have a plastic material reinforced with fibers. This has a matrix material in which the reinforcing fibers are embedded. These can be produced in the form of glass fibers or carbon fibers. The orientation of the fibers can be multidirectional and correspond to the load, so that the base part has sufficient strength to carry and support a floor plate. The matrix material can be a duromer or a thermoplastic. In the latter case, polyamide, PEKK, PEEK or PPS could be used. An advantage when using a thermoplastic would be the possibility of manufacturing the base part by extrusion.
    As widely disseminated in the prior art, the floor plate could have a sandwich material with a honeycomb core and covering layers covering the honeycomb core. The covering layers are in this case preferably arranged parallel to one another and the honeycomb core then has in particular a uniform thickness. To obtain high load resistance, the covering layers can in particular be made of plastic reinforced with carbon fibers. The honeycomb core could be based on a flat folded aramid or polyaramid fabric, which is impregnated with phenolic resin and hardened. The honeycomb core can be chosen relatively thin due to the additional support function of the at least one reinforcing element and have a thickness of less than 10 mm.
    Due to the small thickness required and the support by the at least one reinforcing element, a floor plate could however be made from a different material which has a laminated structure or which is produced in monolithic form . One could for example consider, by comparison with the honeycomb core, a core made in a clearly simpler manner based on foam which is surrounded by covering layers. We could also consider using only several layers of fiber-reinforced plastic.
    The second connection element can be integrated into a covering layer of the floor plate. This may relate to the common hardening of one or more layers of a fiber-reinforced plastic, in case the second connection element is made of such plastic. During the manufacture of a covering layer in question, a second connection element could for example be applied in the form of a preform of an impregnated material and partially or previously hardened on the covering layer in order to obtain hardening. full. In addition, during the manufacture of a covering layer, a second connection element could also be used, which is made of another material and is integrated into a laminated structure of a covering layer, then lets it harden. the assembly consisting of the laminated structure and the second connection element.
    The invention further relates to an aircraft having a passenger compartment with a floor supporting structure and a floor disposed thereon, which is manufactured with a floor system according to the preceding description.
    The passenger compartment can in this case have a cabin or a hold.
    Presentation of the drawings Other characteristics, advantages and possibilities of use of the present invention result from the following description of the exemplary embodiments and the figures. In this case, all the features described and / or represented in the form of figures form in themselves and in any combination the subject of the invention also independently of their composition in the individual claims or their retro-references. In the figures, the same reference numbers also represent identical or similar objects.
    [Fig.l] illustrates a schematic three-dimensional view of a floor manufactured by the floor system.
    [Fig.2] illustrates a sectional representation of the floor.
    [Fig.3] illustrates a top view of the floor.
    [Fig.4] illustrates a detailed representation of a first and a second connection element.
    [Fig.5] illustrates an aircraft which has a floor which is manufactured with the floor system according to the invention.
    Description of the embodiment of the invention [0038] Figure 1 illustrates a partial section of a floor 2 disposed in a vehicle, which is manufactured with a floor system which consists of base parts 4 and floor plates 6. The floor is designed to be placed on a floor supporting structure 8 which contains floor supports 10. These are connected to a primary structure of the vehicle which, for reasons of simplicity, is not illustrated here. The profile indicated is chosen arbitrarily and does not limit the subject of the invention.
    The base part 4 is for example an elongated component which extends between two floor supports 10 extending parallel to one another. It has a bowl-shaped recess 12 which has a width which preferably corresponds, for example, to a distance between the two floor supports 10. On both sides are provided edge surfaces 14 which receive the floor plate. On an opposite side, edge surfaces 14 are provided bearing surfaces 15 which can be placed on the floor support 10. The combination of the two bearing surfaces 15 and the recess 12 directs the base part 4.
    For example, two reinforcing components 16 are located inside the recess 12 and are oriented perpendicular to a bottom surface 18 of the recess 12. The bottom surface 18 is further produced for example parallel to a plane of floor to realize. This is not necessarily necessary, however, but is suitable for integrating the reinforcing components 16. Between side surfaces 20 which extend from the bearing surfaces 15 to the bottom surface 18, and the elements of reinforcement 16, are made in the set three chambers or channels which are suitable for the passage of cables or other installation objects.
    The base part 4 provides between the edge surfaces 14 and the bearing surfaces 15 a determined thickness of material which, in combination with the relevant floor plate 6, defines a structural height h. This structural height h may correspond to the thickness of a usual floor plate which would otherwise be placed on a floor support 10 in the case of usual floors. Thanks to the configuration according to the invention, however, a significantly smaller thickness of the floor plate 6 is necessary. This reduces the costs, in particular in the case of the replacement of a defective floor plate 6 and can simultaneously provide, thanks to the recess in the form of a bowl 12, an additional function. A thinner floor plate 6 is sufficiently supported by the additional reinforcing elements 16 so that its damage is avoided.
    The base part 4 can be made from a plastic material reinforced with fibers. The total base portion 4 could be made by extrusion when using a thermoplastic as the plastic matrix. The base part 4 is in particular made in one piece and without joints.
    As shown in Figure 1 and illustrated in detail in Figure 2, a connection between the floor plate 6 and the base part 4 in the region of the reinforcing elements 16 is further advisable. To this end, the reinforcing elements 16 have a first connection element 22 and the floor plate 6 has second connection elements 24. The first connection elements 22 and the second connection elements 24 are made in a complementary manner. of the others and are made in such a way that they are assembled by engagement by correspondence of shapes. In the example illustrated, the two connection elements 22 and 24 are configured to be connected by snap-fitting or interlocking.
    The first connection elements 22 are for example provided with a first cross section of profile 23 in the form of a drop so that a curvature 26 and a narrowing 28 are produced. The second connection element 24 is however configured so that a slot 30 is formed through which the curvature 26 must be pushed in order to reach an undercut 32. The shrinkage 28 of the first connection element 22 is then located at the height of the slot 30 and the curvature 26 is located in the undercut 32. To push the first connection element 22 into the second connection element 24, the second connection element 24 must widen somewhat in the region of the slot 30. For this, a certain elasticity of the material is necessary.
    Obviously, the arrangement of the first connection element 22 and the second connection element 24 could also be carried out in the reverse sequence. A reinforcing element 16 could thus be provided with an undercut 32, while the curvature 26 would be disposed at the level of the floor plate 6.
    For example, the floor plate 6 and the second connection element 24 are made in one piece. The realization of a single piece could for example relate to the fact that the second connection element 24 is also manufactured by a laminated structure such as a covering layer of the floor plate 6. The covering layer or the assembly of the floor plate 6 could then be hardened at the same time as the second connection element 24 disposed thereon.
    It may be advantageous to provide third connection elements 34 and fourth additional connection elements 36 which are inserted in regions of the recess 12 located laterally outside. The third connection elements 34 may for example have a recess in the lateral surfaces 40. Fourth connection elements 36 are in this case configured in a corresponding manner, and constitute a domed bulge. The floor plate 6 can therefore be placed from above on the base part 4, in order to connect to each other the first connection elements and the second connection elements 22 and 24, and simultaneously on the edge side, the third connection elements and the fourth connection elements 34 and 36, after having exerted a pressing force.
    For fixing these components on the floor supports 10, one can use the usual fixing methods. For example, the base part 4 has, in the edge surfaces 14 and the bearing surfaces 15, through bores 38 which are aligned with bores 40 in the floor plate 6 as well as with through bores 42 in the floor support 10. A bolt 44 can be inserted through the three bores aligned with each other 38, 40 and 42 and then is fixed with a nut 46. The through bores 40 can be chamfered to receive a six-screw hollow sides, i.e. having a widening conical region.
    In the case of a laminated structure of the floor plate 6 without a core layer, this variant may be sufficient for fixing. It can be envisaged, in the case of the use of a core with a cavity in a region comprising the through bores 40, to have an insert which prevents damage to the core. It is understood that several arrangements of this type are arranged in a determined grid along the floor supports 10.
    The cavities formed in the recess 12 are for example equipped with cables 47 as installation objects. If the floor supports 10 and therefore the base part 4 and the floor plate 6 extend parallel to a longitudinal axis of the vehicle, the cables 47 can be laid along the longitudinal axis. Thus, devices in the cabin or in the hold can be supplied with electrical power and / or data.
    Figure 3 illustrates a top view of the floor 2 and a floor support 10 which is connected by several bolts 44 to the base part 4 and the floor plate 6. The reinforcing elements 16 s' extend parallel to each other and for example at regular intervals. The intervals as well as the number of reinforcing elements 16 can be chosen according to the material used for the floor plate 6 as well as according to the expected stresses. There may be regions which are provided with only one reinforcement element 16 while in other regions, several reinforcement elements 16 could also be provided.
    FIG. 4 illustrates, by way of example, a small portion of the floor plate 6 and of the base part 4, in order to demonstrate the assembly of a first connection element 22 and a second connection element 24.
    Linearly, Figure 5 illustrates an aircraft 48 with a fuselage 50 which may have a passenger compartment 52 with a primary structure. A floor supporting structure 8 is disposed thereon with several floor supports 10 which carry at least one floor 2 according to the invention.
    In addition, it should be emphasized that the term "presenting" does not exclude other elements or other steps, and that the use of the singular does not exclude plurality. In addition, it should be mentioned that features which have been described with reference to one of the above exemplary embodiments can also be used in combination with other features of other exemplary embodiments described above. The reference numbers in the claims should not be considered as limiting.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    [Claim 1] [Claim 2] [Claim 3] [Claim 4]
    Claims
    Floor system for creating a floor (2) in a passenger compartment of a vehicle, having a base part (4) to be placed on a floor supporting structure (8) of the vehicle, and a floor plate (6) which can be placed on the base part (4), the base part (4) having at least two edge surfaces (14) and a cup-shaped recess (12) arranged between them to receive installation objects ( 47), the base part (4) having at least one reinforcing element (16) disposed in the recess (12), which extends over the entire height of the recess (12), the floor plate (6) and the at least one reinforcement element (16) having first connection elements (22) and second connection elements (24) produced in a complementary manner to each other which are produced to connect in a removable manner, by engagement by correspondence form the floor plate (6) and at least a reinforcement element (16), at least a first connection element (22) being disposed on the at least one reinforcement element (16) and at least a second connection element (24) being arranged at a lower side of the floor plate (6), and the floor plate (6) being produced corresponding to the base part (4) so that it can be placed on the edge surfaces (14) and on the at least one reinforcement element (16) and that the at least one second connection element (24) is assembled to the at least one first connection element (22).
    Floor system according to claim 1, wherein the first connection elements (22) and the second connection elements (24) are made so as to establish a snap connection.
    Floor system according to claim 1 or 2, in which the connection elements (22, 24) extend each time along a cross section at the level of the at least one reinforcement element (16) and of the floor plate (6).
    Floor system according to any one of the preceding claims,
    in which the connection elements (22, 24) extend each time along at least 90% of an available length of the at least one reinforcement element (16) or of the floor plate (6 ). [Claim 5] Floor system according to any one of the preceding claims,wherein one of the first connection element (22) and the second connection element (24) has a first profile cross section (23) and the other of the first connection element (22) and the second element connection (24) has a second cross section of profile (25),the first profile cross section (23) having a curvature (26),the second profile cross section (25) having an undercut (32), andthe first profile cross section (23) and the second profile cross section (25) being made so that the curvature (26) snaps into place in the undercut (32). [Claim 6] Floor system according to claim 5,wherein the curvature (26) is based on an arc or a drop shape. [Claim 7] Floor system according to any one of the preceding claims,in which the second connection element (24) is glued to a lower side of the floor plate (6). [Claim 8] Floor system according to any one of the preceding claims,wherein at least one of the first connection elements (22) and the second connection elements (24) has a metallic material. [Claim 9] Floor system according to any one of the preceding claims,wherein the base part (4) has a plastic material reinforced with fibers. [Claim 10] Floor system according to any one of the preceding claims,wherein the floor plate (6) has a fiber reinforced plastic material. [Claim 11] Floor system according to any one of the pre-
    cedents,wherein the second connecting element (24) is integrated in a covering layer of the floor plate. [Claim 12] Floor system according to any one of the preceding claims,wherein a plurality of reinforcing elements (16) are arranged in a uniformly distributed manner in the recess. [Claim 13] Airplane (48) having a passenger compartment (52) with a floor supporting structure (8) and a floor (2) disposed thereon, which is manufactured with a floor system according to any one of claims 1 to 1 9 [Claim 14] Airplane (48) according to claim 13, wherein the passenger compartment (52) has a cabin or a hold.
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    类似技术:
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    FR3040680A1|2017-03-10|METHOD FOR ATTACHING EQUIPMENT TO A SANDWICH STRUCTURE IN COMPOSITE MATERIALS THAT DO NOT FRAGILIZE THE SAME.
    同族专利:
    公开号 | 公开日
    FR3085941B1|2021-10-08|
    CN110901881A|2020-03-24|
    US20200086967A1|2020-03-19|
    DE102018122813B4|2021-02-25|
    GB2580201A|2020-07-15|
    DE102018122813A1|2020-03-19|
    GB201912917D0|2019-10-23|
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    法律状态:
    2020-09-14| PLFP| Fee payment|Year of fee payment: 2 |
    2021-03-05| PLSC| Search report ready|Effective date: 20210305 |
    2021-09-21| PLFP| Fee payment|Year of fee payment: 3 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018122813.9|2018-09-18|
    DE102018122813.9A|DE102018122813B4|2018-09-18|2018-09-18|Floor system for a vehicle|
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