Fastening device for a motor vehicle and method

Abstract

The invention relates to a fastening device (10) for a motor vehicle with a cargo compartment (12) and a storage compartment (14) arranged below it in the vertical direction (z) of the vehicle, which can be spatially separated from each other by a cargo compartment floor (16) covering the storage compartment (14), with guide grooves (18) opposite each other in the transverse direction (y) of the vehicle, into which respective guide elements (20) of the cargo compartment floor (16) can be inserted, wherein respective fastening elements (22) are arranged in the guide grooves (18) by means of which the respective guide elements (20) can be locked. The invention further relates to a method for fastening the cargo compartment floor (16).

Description

[0001] The invention relates to a fastening device for a motor vehicle according to the preamble of patent claim 1. Furthermore, the invention relates to a method for fastening a loading space floor by means of such a fastening device.

[0002] It is already known from the prior art that a cargo space and the storage space located below it in the vertical direction of the vehicle can be separated by a cargo floor or a floor plate, allowing a vehicle user to, for example, pack a tire or tools into the storage space and still use the entire cargo space for other items. In addition to the advantages, aesthetics should also be preserved, so that when the vehicle is opened via the rear door, an aesthetically pleasing cargo space is provided without the storage space being visible.

[0003] DE 102 61 393 A1 discloses a loading floor device for the cargo area of ​​a passenger car. This loading floor device enables the movement of a loading floor between an upper and a lower position, with the loading floor being guided by a guide rail. The guide rail has a first longitudinal section and an adjoining second longitudinal section, which enable stable and controlled movement of the loading floor. To fix the loading floor in the various positions, spring elements with locking lugs are arranged. These engage in the guide rail and enable secure locking of the loading floor.

[0004] For example, DE 10 2014 009 399 A1 already discloses a device for a vehicle's cargo area, comprising an inherently rigid cargo area cover for covering the cargo area and a cargo area floor for covering a storage space. The cargo area cover comprises side panels on which the respective guide devices are arranged, which can be fitted into corresponding locking grooves in the support surface, allowing the cargo area cover to be positioned in a predetermined position. This separates the cargo area and the storage space from each other.

[0005] Finally, DE 10 2014 205 998 A1, DE 10 2008 061 106 A1, DE 10 2022 127 729 A1, DE 10 2014 204 679 A1 and DE 10 2009 032 892 A1 disclose further suspension mechanisms for loading compartment floors in the state of the art for the fastening device according to the invention.

[0006] The object of the invention is to provide a fastening device which enables a particularly simple installation of a loading space floor, in particular with regard to the speed of introduction of the loading space floor into an area provided for this purpose within the loading space.

[0007] This object is achieved according to the invention by a fastening device having the features of patent claim 1 and by a method according to the invention. Advantageous embodiments of the invention are the subject of the dependent patent claims and the description.

[0008] One aspect of the invention relates to a fastening device for a motor vehicle, in particular a passenger car, with a cargo space and a storage space arranged underneath it in the vertical direction of the vehicle. Accordingly, it is provided that the cargo space has the storage space below it, or that a cargo space and a storage space are arranged one above the other in the motor vehicle. This results in the possibility of using the storage space to stow objects and subsequently using the cargo space to stow further objects. In this case, it is provided that the cargo space and the storage space can be spatially separated from one another by a cargo space floor covering the storage space. The fastening device comprises guide grooves located opposite one another in the transverse direction of the vehicle, into which guide grooves the respective guide elements, in particular bolts of the cargo space floor, can be inserted.In other words, the load compartment floor comprises respective guide elements on respective sides, in particular the bolts, which can be inserted into the respective guide grooves on the sides of the load compartment. In other words, the load compartment comprises at least two guide grooves into which at least two guide elements of the load compartment floor can be inserted. Such guide grooves can have various designs, but are particularly directed downward in the vertical direction of the vehicle, whereby the guide elements of the load compartment floor, which are located below the load compartment floor in the inserted position of the load compartment floor in the vertical direction of the vehicle, are invisible.

[0009] Furthermore, the invention provides for respective fastening elements to be arranged in the guide grooves, by means of which the respective guide elements can be locked in a locking space. Accordingly, it is provided that when the respective guide elements are inserted into the respective guide grooves, not only is the loading compartment floor positioned in the area provided for it, but the guide elements are also locked. For this purpose, the fastening elements are arranged within the guide grooves so that when the guide elements are inserted into the respective guide grooves, they are firmly locked by the fastening elements. This means that during movements, for example jerking or shaking movements of the motor vehicle, they are not moved and thus do not cause noises that could be unpleasant for an occupant.By locking, fastening, or clamping, the load compartment floor can be securely inserted into the designated guide grooves. However, the respective fastening elements are also designed to release the guide elements if the load compartment floor is pulled, for example, allowing the user to easily assemble and disassemble the load compartment floor. Furthermore, it is also possible to insert the guide elements into the guide grooves and lock them in place with the respective fastening elements, while providing a tilting or folding option for the load compartment floor. This allows the load compartment floor to be folded upwards in the vertical direction of the vehicle despite its locked position, allowing access to the storage space.

[0010] In order to achieve the object of the invention, it is provided that the locking space for the corresponding guide element is formed by the guide groove and by the fastening element which can be tilted about a respective axis, within which the respective guide elements can be inserted and enclosed.

[0011] This means that the fastening elements execute an interlocking movement to enable the locking of the respective guide elements. In other words, the fastening elements are intended to enable a rocker arm movement to fasten or lock the respective guide elements within the guide grooves. This enables a particularly simple and cost-effective design of the respective fastening elements.

[0012] This also means that between the fastening element and, for example, a base of the guide groove on which the fastening element is arranged, there is a locking space within which the respective guide elements can be inserted. This is a further embodiment of a fastening device designed as a clamping device or as a rocker arm, with the fastening element folding upwards, for example, which is pressed downwards in the vertical direction of the vehicle by the spring element or by a leg spring in order to hold the guide elements or the respective guide element. The locking space can enclose the guide element and return the fastening element to its original position.

[0013] In an advantageous embodiment of the invention, the respective fastening elements comprise respective spring elements for locking the respective guide elements. By arranging or applying spring elements in or on the fastening elements, the possibility of a rocker lever is further developed, whereby the spring force or tension force of the respective spring elements can now be used to enable particularly secure locking of the respective guide elements.

[0014] In another advantageous embodiment of the invention, it is provided that the spring elements are designed as leg fields that hold the respective guide elements downwards in the vertical direction of the vehicle. The leg springs enable a particularly simple type of spring element, which has respective legs. In this case, it is provided that a first leg is arranged and fastened to the fastening element and a second leg is arranged and fastened to the guide groove or to a wall or a floor of the guide groove, such that a clamping force is enabled by the respective legs. In other words, a rocker arm with a clamping force or a clamp is to be provided here, by means of which the respective guide elements can be locked or clamped within the guide grooves.By selecting the respective leg springs, a clamping force can be determined, which can make the locking particularly strong or light.

[0015] In yet another advantageous embodiment of the invention, a receiving space for an upward tilting movement of the fastening element in the vehicle's vertical direction is arranged above the fastening element in a floor area of ​​the cargo space. When designing the fastening element as an exemplary rocker arm, it is necessary to provide a space within which the fastening element can move when the guide element is inserted into the guide groove. For this purpose, the receiving space is provided, which is arranged above the fastening element and provides sufficient clearance for the movement or tilting movement of the fastening element.

[0016] In another advantageous embodiment of the invention, the locking space has a geometry that corresponds to and encompasses the guide element, thereby completely encompassing the guide element, thus providing little room for wobbling or shaking. This makes it possible to prevent the transmission of vibration from the motor vehicle to the cargo area floor as much as possible, while also preventing disturbing noises caused by rattling.

[0017] In another advantageous embodiment of the invention, the locking space has a slope directed toward an insertion opening of the corresponding guide groove, with a geometry that facilitates insertion of the corresponding guide element. This is intended to provide an aid for inserting the guide element, through which the guide element enters, slides, or is guided into the locking space provided for it.

[0018] In another advantageous embodiment of the invention, the fastening element has a further bevel directed towards an insertion opening of the corresponding guide groove, with a geometry that facilitates insertion of the corresponding guide element. The further bevel can be used as a guide for the guide element in such a way that the guide element can more easily enter, slide into, or be guided into the locking space provided for it. This further bevel can, for example, extend from the locking space to the insertion opening, so that when the guide element is inserted through the insertion opening, it is guided along the bevel to the locking space.

[0019] A further aspect of the invention relates to a method for fastening a load compartment floor in guide grooves provided for this purpose, which are opposite one another in the transverse direction of the vehicle, within a load compartment of a motor vehicle, by means of a fastening device. The method provides that the load compartment and a storage space arranged underneath it in the vertical direction of the vehicle are spatially separated by the load compartment floor being inserted into the guide grooves via respective guide elements. In addition, the respective guide elements are locked in a locking space in the guide grooves by means of respective fastening elements. Finally, the guide groove and the fastening element, which can be tilted about a respective axis, form the locking space for the corresponding guide element, within which the respective guide elements are inserted and enclosed.

[0020] A particularly advantageous feature of the present invention is that a particularly high radial clamping force is provided via the fastening element or the rocker arm and by the spring element or the leg fields, allowing the fastening element to be used as a lever arm. Furthermore, this design ensures that no play is provided in the vehicle's longitudinal and vertical directions, thereby enabling particularly stable locking of the respective guide elements and thus of the load compartment floor. Furthermore, a reduction in the potential for disturbing noise due to rattling is possible, since the spring elements or leg springs are always under tension relative to the guide element or the bolt due to their tight mounting position.Finally, a low assembly force is required to install the load compartment floor, as well as low disassembly forces to pull the guide element or the bolt backwards, particularly in the longitudinal direction of the vehicle, and thus remove it from the guide groove.

[0021] In summary, the invention proposes an alternative fastening system for a storage floor or for a loading space floor in a receptacle for the storage floor or in the respective guide grooves for the guide elements of the loading space floor.

[0022] Further features of the invention emerge from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respective specified combination, but also in other combinations or on their own.

[0023] The invention will now be explained in more detail using a preferred embodiment and with reference to the drawings. They show: Fig. 1 a schematic cross-section of a possible embodiment of a fastening device according to the invention, by means of which the insertion of a load compartment floor into a guide groove provided for this purpose is illustrated in a first step; Fig. 2 shows a further cross-section of the fastening device according to the invention with a further step in the introduction of the loading space floor; and Fig. 3 a further cross-section of the fastening device according to the invention with a locked loading space floor.

[0024] In the figures, functionally identical elements are provided with the same reference numerals.

[0025] Fig. 1 shows a cross-section of a possible embodiment of a fastening device 10 for a motor vehicle with a cargo space 12 and a storage space 14 arranged underneath. The cargo space is spatially separated from the storage space 14, for which purpose a cargo space floor 16 covering the storage space 14 is provided. The fastening device 10 comprises guide grooves 18 located opposite one another in the vehicle transverse direction Y, into which guide grooves 18 respective guide elements 20 of the cargo space floor 16 can be inserted. Respective fastening elements 22 are arranged in the guide grooves 18, by means of which the respective guide elements 20 can be locked.In the embodiment shown here, it is provided that the guide elements 20 are designed as bolts, wherein it is also possible to lock a rod or a rod element or similar elements with respective sides as the respective guide elements in the respective guide grooves 18, whereby a design of the loading space floor 16 does not necessarily have to be provided with bolts, in particular it is possible to design the loading space floor 16 differently.

[0026] The guide grooves 18, which are opposite in the vehicle transverse direction Y and which are arranged according to Fig. 1 are initially aligned transversely downwards in the vehicle's vertical direction Z and then forwards in the vehicle's longitudinal direction. These guide grooves 18 thus serve as a guide track for the guide elements 20 of the load compartment floor 16 and are designed to enable secure positioning of the load compartment floor 16 above the storage space 14. In other words, it is provided that the load compartment floor 16 is adjusted along the guide tracks by the guide grooves 18 into a position in which it is locked as securely as possible, so that, for example, in the event of vibrations of the motor vehicle, the load compartment floor 16 does not deviate from its position or cause disturbing noises.

[0027] The respective fastening elements 22 are arranged in the guide grooves 18, which enable the guide elements 20 to be locked in place. These fastening elements can be tilted about respective axes A, which means that they have freedom of movement and can move about their own axes A. These fastening elements 22 have respective spring elements 24, which are designed to lock the guide elements 20 and thus the bolts of the load compartment floor 16. These spring elements 24 can be designed as leg springs and thus constructed to hold the guide elements 20 downward in the vehicle's vertical direction Z. This enables particularly secure locking or locking of the guide elements within the guide grooves 18.Accordingly, it is intended that the fastening elements 22, in conjunction with the spring element 24 and the guide groove 18, represent a type of clamp, which is used to lock the respective guide elements 20. The . Fig. The fastening elements 22 shown in Figure 1 are elongated and arranged at a bottom of the guide groove 18 and can be opened and closed via the respective axes A and spring elements 24, wherein the fastening element 22 is pressed against the bottom of the guide groove 18 along the elongated direction of extension by the spring elements 24.

[0028] A further feature of the fastening device 10 is the receiving space 26, which is located in a floor area of ​​the cargo space 12 in the vehicle's vertical direction Z above the fastening element 22. This receiving space 26 is designed to allow a tilting movement B of the fastening element 22 upward in the vehicle's vertical direction Z. Thus, the clamp represented by the fastening element 22 can be used without abutting the guide groove 18.

[0029] In other words, a type of clamp is enabled by the fastening element 22 on the guide groove 18, wherein the bottom of the guide groove 18 represents a first arm and the fastening element 22 represents a second arm of the clamp design. In the sense of a clamp, at least one of the arms, namely the second arm, must be turned or rotated about the axis A. To prevent the fastening element 22 and thus the second arm from striking an upper wall of the guide groove 18, a receiving space 26 is provided, within which the second arm and thus the fastening element 22 can be adjusted up and down.

[0030] The combination of the guide groove 18 and the fastening element 22 forms a locking space 28 for the corresponding guide element 20. This locking space 28 has a predetermined geometry designed to securely encompass the guide element and hold it in position. The geometry of the locking space 28 is further configured to precisely match the shape of the guide element 22, thereby enabling particularly precise and reliable locking around the guide element. Furthermore, it is provided that a bevel 32, which is located in the locking space 28, is directed towards the insertion opening 30 of the corresponding guide groove 18. This bevel 32 has a predetermined geometry that simplifies the insertion of the corresponding guide element 20 into the locking space 28.The fastening element 22 also includes a further bevel 34 with a predetermined geometry, which is also designed to facilitate the insertion of the guide element 20. This further bevel extends from the locking space 28 to the opening or insertion opening 30 of the corresponding guide groove 18 and thus provides a guide along which the guide element 20 can be guided to the locking space 28. This further bevel 34 makes it possible, by inserting the guide element 20, to fold the fastening element 22 at least partially upward in the vertical direction of the vehicle and thus counteract the spring force of the spring element 24, providing a path to the locking space 28. Upon reaching the locking space 28, the fastening element 22 folds shut again due to the spring force of the spring element 24 and thus locks the guide element 20.When the loading compartment floor 16 is pulled and thus the guide element 20 is pulled out of the locking space 28, the first bevel 32 allows for simplified removal of the guide element 20 from the locking space 28. Accordingly, the bevels 32, 34 are designed to facilitate the insertion and removal of the guide element 20 into and out of the locking space 28.

[0031] Overall, this fastening device 10 enables secure and flexible fastening of the load compartment floor 16 in the guide grooves 18 of the motor vehicle. The tilting capability of the fastening elements 22, the spring elements 24, and the predetermined geometry of the locking space are features that contribute to the load compartment floor 16 being firmly locked, yet also easily removable.

[0032] Fig. 2 shows a further cross-section of the fastening device 10, in which the guide element 20 is being inserted into the locking space 28. The fastening element 22 is pressed upward in the vehicle's vertical direction Z, in particular into the receiving space 26, so as not to collide with the wall of the guide groove 18, and the spring element 24 is tensioned. This illustrates the unfolding or tilting of the fastening element 22 along or around the axis A, whereby the guide element 20 is to be inserted into the locking space 28.

[0033] Fig.3 shows a further cross-section of the fastening device 10, in which the guide element 20 is already arranged in the locking space 28 and thus locked. Here, the fastening element is again tensioned in the initial position by the spring element and thus locks the guide element. In particular, the enclosing of the guide element 20 by the fastening element 22 and by the bottom of the guide groove 18 is shown, which enables particularly effective gripping or locking of the guide element in order to suppress vibrations and noise. Finally, it is provided that the loading space floor 16 is fastened by means of a method in which the loading space floor 16 is fastened by means of the fastening device in guide grooves 18 provided for this purpose, which are opposite one another in the transverse direction of the vehicle, within the loading space 12 of the motor vehicle.In this method, the cargo space 12 and the storage space 14 arranged below it in the vehicle's vertical direction Z are spatially separated by the cargo floor 16, which is inserted into the guide grooves 18 via the respective guide elements 20. Furthermore, the respective guide elements 20 are locked in the guide grooves 18 by means of respective fastening elements 22. Thus, a clamping function is enabled by the fastening element 22, which holds the cargo floor 16 particularly advantageously. List of reference symbols 10 Fastening device 12 cargo space 14 storage space 16 Loading compartment floor 18 Guide groove 20 guide element 22 Fastening element 24 spring elements 26 Recording room 28 Locking room 30 insertion opening 32 slopes 34 more slopes A axis B Tilting movement Z Vehicle vertical direction Y vehicle transverse direction X Vehicle longitudinal direction

Claims

[1] Fastening device (10) for a motor vehicle with a loading space (12) and a storage space (14) arranged underneath in the vehicle's vertical direction (z), which can be spatially separated from one another by a loading space floor (16) covering the storage space (14), with guide grooves (18) lying opposite one another in the vehicle's transverse direction (y), into which guide grooves respective guide elements (20) of the loading space floor (16) can be inserted, wherein respective fastening elements (22) are arranged in the guide grooves (18), by means of which the respective guide elements (20) can be locked in a locking space (28), characterized by that the locking space (28) for the corresponding guide element (20) is formed by the guide groove (18) and by the fastening element (22) which can be tilted about a respective axis (A), within which the respective guide elements (20) can be inserted and enclosed. [2] Fastening device (10) according to claim 1, characterized bythat the respective fastening elements (22) have respective spring elements (24) for locking the respective guide element (20). [3] Fastening device (10) according to claim 2, characterized by that the spring elements (24) are designed as leg springs holding the respective guide elements (20) downwards in the vehicle vertical direction (z). [4] Fastening device (10) according to one of the preceding claims, characterized by that in a floor area of ​​the loading space (12) in the vehicle vertical direction (z) above the fastening element (22) there is arranged a receiving space (26) for a tilting movement (B) of the fastening element (22) in the vehicle vertical direction (z) upwards. [5] Fastening device (10) according to claim 4, characterized by that the locking space (28) has a geometry corresponding to the guide element (20) and encompassing the guide element (20). [6] Fastening device (10) according to claim 5, characterized by that the locking space (28) has a slope (32) directed towards an insertion opening (30) of the corresponding guide groove (18) with a geometry which promotes insertion of the corresponding guide element (20). [7] Fastening device (10) according to one of the preceding claims, characterized by that the fastening element (22) has a further slope (34) directed towards an insertion opening (30) of the corresponding guide groove (18) with a geometry which promotes insertion of the corresponding guide element (20). [8] Method for fastening a loading space floor (16) in guide grooves (18) provided for this purpose, which are opposite one another in the transverse direction (y) of the vehicle, within a loading space (12) of a motor vehicle by means of a fastening device (10), in which the loading space (12) and a storage space (14) arranged underneath it in the vertical direction (z) of the vehicle are spatially separated by the loading space floor (16) inserted into the guide grooves (18) via respective guide elements (20), wherein the respective guide elements (20) are locked in a locking space (28) in the guide grooves (18) by means of respective fastening elements (22), characterized by that the locking space (28) for the corresponding guide element (20) is formed by the guide groove (18) and by the fastening element (22) which can be tilted about a respective axis (A), within which the respective guide elements (29) are introduced and enclosed.

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