Fastening device for fastening headlight in motor vehicle, headlight assembly, motor vehicle, kit comprising plurality of fastening devices

Abstract

The invention relates to a fastening device (10) for fastening a headlight in a motor vehicle, comprising a first fastening element and a second fastening element, which are connected to one another by means of a latch connection, wherein the first fastening element and / or the second fastening element has a predetermined breaking point.

Description

Prior art

[0001] A device for fastening a headlamp to a motor vehicle is known from DE 27 21 554 A1, which is formed separately from the headlamp, wherein the device is arranged between a lower transverse member and an upper transverse member of the motor vehicle and the device is fastened to the headlamp housing by means of a plurality of rivets. Summary of the invention

[0002] It is an object of the present invention to provide a fastening device for fastening a headlamp in a motor vehicle, which ensures defined failure and simple and rapid assembly.

[0003] The object of the present invention is achieved by a subject matter having the features according to claim 1.

[0004] The fastening device is for fastening a headlamp in a motor vehicle. The fastening device comprises: a first fastening element for fastening the fastening device to the motor vehicle; and a second fastening element, which is formed separately from the first fastening element and for fastening the fastening device to the headlamp. The first fastening element and the second fastening element can be reversibly detachably connected to each other by means of a latching connection. In addition, a predefined breaking point is provided on the first fastening element and / or the second fastening element.

[0005] This has the advantage that a failure of the fastening device can be determined, such that the motor vehicle and / or the headlamp is protected from damage. In addition, the latching connection ensures simple and rapid assembly of the headlamp in the vehicle and / or in the fastening device. The latching connection of the fastening device also results in, for example, lower manufacturing and assembly tolerances compared to the motor vehicle.

[0006] The provision of the predefined breaking point also means that, in the event of damage, only the first fastening element or the second fastening element needs to be replaced, while the second fastening element or the first fastening element can remain in the motor vehicle.

[0007] It is conceivable that the first fastening element is formed integrally or in multiple parts for the motor vehicle, and / or the second fastening element is formed integrally or in multiple parts for the headlamp housing.

[0008] To assemble the fastening device, the first fastening element is pressed hydraulically (in particular by means of a tool) into the second fastening element. The latching connection (in particular in combination with the pressing) particularly represents a form-fitting locking and a frictional connection, and preferably ensures a backlash-free arrangement of the headlamp in the motor vehicle or the first fastening element in the second fastening element or the second fastening element in the first fastening element.

[0009] It is advantageous if the predetermined breaking point is formed as a local material taper. Thus, the predetermined breaking point can be easily provided on the first fastening element and / or the second fastening element.

[0010] An advantageous embodiment of the invention provides that the first fastening element or the second fastening element has a frustum of a cone extending along the cone axis. The predetermined breaking point is preferably arranged on the frustum of the cone. By virtue of the arrangement of the predetermined breaking point along the frustum of the cone, different breaking forces of the predetermined breaking point can also be set due to the different cross-sections.

[0011] Preferably, if the frustum of the cone is arranged on the first fastening element, the frustum of the cone will have: a first cone end facing the second fastening element; and a second cone end opposite the first cone end along the cone axis and facing the first fastening interface. Preferably, when the frustum of the cone is arranged on the second fastening element, the frustum of the cone will have: a first cone end facing the first fastening element; and a second cone end opposite the first cone end along the cone axis and facing the second fastening interface. Preferably, the frustum of the cone tapers from the first cone end to the second cone end along the cone axis. It is advantageous if the predetermined breaking point is arranged in the region of the second cone end. Thus, the cross-section of the frustum of the cone decreases in the region of the predetermined breaking point.

[0012] It is advantageous if the frustum of the cone is formed as hollow. In addition to a local reduction of the cone wall thickness at the predetermined breaking point, the frustum of the cone has a constant cone wall thickness along the cone axis. In the context of the present invention, "constant cone wall thickness" is understood to mean a deviation of at most 10%, in particular 5%, preferably 3%. "Local reduction of the cone wall thickness at the predetermined breaking point" can be understood to mean that the wall thickness is reduced by at least 10%, in particular at least 20%, preferably at least 30% and more preferably at least 50% compared to the other constant cone wall thicknesses.

[0013] Another advantageous refinement provides that the first fastening element and / or the second fastening element has a latching part. The latching part preferably cooperates with the first fastening element or the second fastening element to form the latching connection.

[0014] Preferably, the latching part has at least one undercut. Preferably, the undercut can be accessed from the upper side and / or the lower side of the latching part.

[0015] It is advantageous if the first fastening element has at least one latching hook for latching connection with the second fastening element, in particular with the latching part. Alternatively, it is advantageous if the second fastening element has at least one latching hook for latching connection with the first fastening element, in particular with the latching part. Preferably, the latching hook engages in the latching part, in particular in the undercut of the latching hook, such that the second fastening element is fixed on or in the first fastening element, or the first fastening element is fixed on or in the second fastening element. Thus, the headlight is ultimately also fixed to or in the motor vehicle. The latching hook and / or the undercut provides an easily manufacturable and easily assemblable latching connection between the first fastening element and the second fastening element.

[0016] Another advantageous refinement provides that the first fastening element or the second fastening element has a guiding part for receiving and / or guiding the second fastening element or the first fastening element. The guiding part may have a first lateral guide and a second lateral guide, where the guides are particularly arranged on the left and right sides of the first fastening part or the second fastening element. Thus, it is ensured that the second fastening element or the first fastening element is precisely positioned and can establish the latching connection.

[0017] Preferably, the second fastening element has a sliding part which, when the second fastening element is inserted into the first fastening element, co-operates with the guiding part, in particular with the lateral guides. Preferably, alternatively, the first fastening element has a sliding part which, when the first fastening element is inserted into the second fastening element, co-operates with the guiding part, in particular with the lateral guides. The sliding part may have a first lateral slider and a second lateral slider, where the sliders are particularly arranged on the left and right surfaces of the second fastening element or the first fastening element. Thus, it is further ensured that the second fastening element or the first fastening element is precisely positioned and can establish the latching connection.

[0018] A preferred embodiment of the invention provides that the predetermined breaking point is arranged on the first fastening element. Preferably, the first fastening element is formed as two-piece for the motor vehicle. Preferably, the second fastening element is formed in one piece for the headlight, in particular in one piece for the headlight housing. Furthermore, the frustum of a cone is preferably arranged on the first fastening element, where the predetermined breaking point is particularly provided on the first frustum of a cone.

[0019] The object of the invention is also achieved by a headlight having a headlight housing and having the second fastening element described above, which is firmly connected to the headlight, in particular firmly connected to the headlight housing. Preferably, the headlight, in particular the headlight housing and the second fastening element, are formed in one piece.

[0020] The object of the invention is also achieved by a headlight assembly having the features of claim 11. Thus, the headlight assembly has the fastening device described and a headlight for a motor vehicle.

[0021] It is conceivable that, in each case, the fastening device described is arranged at the top and / or bottom and / or left and / or right of the headlight. It is also conceivable that the fastening device described and fastening devices known from the prior art are used together, with one being arranged above the headlight and one being arranged below the headlight, or one being arranged on the left side of the headlight and one being arranged on the right side of the headlight.

[0022] The fastening device, in particular the first fastening element and / or the second fastening element, is preferably formed separately from the headlight. If the fastening device fails, only the fastening device, in particular the first fastening element and / or the second fastening element, needs to be replaced. Thus, in this case, there is no need to replace the headlight.

[0023] The fastening device is preferably formed such that, in the event of damage, the fastening device, in particular the first fastening element, is destroyed and thus protects the headlight from damage. In the event of damage, the headlight can accordingly remain in the vehicle and only the fastening device, in particular the first fastening element and / or the second fastening element, needs to be replaced.

[0024] The object of the invention is also achieved by a motor vehicle having the features of claim 13. The motor vehicle has the fastening device or the headlight assembly described.

[0025] Furthermore, the object of the invention is achieved by a kit according to claim 14. The kit includes a plurality of fastening devices, in particular the fastening devices described, for different motor vehicles and / or for different headlights.

[0026] It is advantageous if the kit includes a plurality of first fastening elements and second fastening elements (wherein the interface, in particular the guide portion and / or the latch portion and / or the latch hook, has the same design). Thus, the same latch connection concept can be used for different headlights and / or motor vehicles.

[0027] Other details and advantageous embodiments of the present invention are found in the following description, based on which exemplary embodiments of the present invention are described and illustrated in more detail.

[0028] In the drawings:

[0029] Figures 1 to 8 A fastening device for fastening a headlight in a motor vehicle is shown.

[0030] The fastening device 10 serves to fasten Figure 7 and Figure 8 the headlight 12 shown in a motor vehicle (not shown), wherein Figure 8 is Figure 7 a detailed view of detail C in. The fastening device 10 is formed separately from the motor vehicle. According to Figure 2 , the fastening device 10 includes a first fastening element 14 having a first fastening interface 16 for fastening the fastening device 10 to the motor vehicle. The first fastening interface 16 is preferably fastened to the motor vehicle, in particular to a cross member, by means of a fastening device (in particular a screw). Alternatively, the first fastening device 14 can be formed integrally with the motor vehicle.

[0031] The fastening device 10 further includes a second fastening element 20 having a second fastening interface 22 and serving to fasten the fastening device 10 to the headlight 12, in particular to the headlight housing of the headlight. The second fastening interface 22 is preferably formed integrally with the headlight 12, in particular with the headlight housing. Alternatively, the second fastening device 20 can be fastened to the headlight 12 by means of a fastening device (in particular a screw). In Figure 2 , Figure 7 and Figure 8 the fastening device 10 is shown mounted on the headlight 12.

[0032] The first fastening element 14 and the second fastening element 20 are formed separately from each other. The first fastening element 14 and the second fastening element 20 can be reversibly connected and separated from each other by means of a latching connection.

[0033] According to Figure 2 and Figure 6 , the second fastening element 20 has a second housing 24 having a guide portion 28 that extends along a guide axis 26 for receiving and guiding the first fastening element 14. For this purpose, the guide portion 28 has a first guide 28A and a second guide 28B, wherein the first guide 28A is arranged on the left side and the second guide portion 28B is arranged on the right side. To connect the first fastening element 14 and the second fastening element 20, the first fastening element 14 is inserted along the guide axis 26 into the guide 28 until according to Figure 5The assembled end stop 30, where the first fastening element 14 is then arranged in the latched position.

[0034] According to Figure 1 , the first fastening element 14 has a first housing 21 which has a latching part 32, which is preferably formed in a cartridge shape. Preferably, two protruding stop lugs 36 extending parallel to the guide axis 26 are provided on the front side 34 of the latching part 32 facing the assembled end stop 30. In the latched position, the stop lugs 36 of the first fastening element 14 abut against the assembled end stop 30 of the second fastening element 20.

[0035] According to Figure 1 and Figure 5 , the latching part 32 also has an undercut 38. Preferably, the undercut 38 is formed as a recessed pit with a pit bottom. According to Figure 2 and Figure 5 , the first fastening element 14 has a latching hook 40 which is particularly arranged between the first guide 28A and the second guide 28B. Preferably, the latching hook 40 is formed as a protrusion and / or a raised part, which is particularly arranged in the region of the free end of the tab of the second fastening element 20. In the latched position, according to Figure 5 the latching hook 40 engages the latching part 32, in particular the undercut 38, from behind. The second fastening element 20 is fixed in the first fastening element 14. Preferably, the latching hook 40 is formed as flexible and is pushed upwards when the second fastening element 20 is inserted into the guide part 28 and latches into the undercut 38 in the latched position. It is also conceivable that the pit is arranged at the top and / or bottom, where the latching hook 40 engages in the undercut according to the accessibility of the pit.

[0036] According to Figure 1 and Figure 2 , the undercut 38 is alternatively formed as a continuous recess 38A, where according to Figure 2 , the latching hook 40 is first pushed downwards and then engages in the undercut 38 from below. Alternatively, the latching hook can be first pushed upwards and then engages in the undercut 38 from above. To improve the insertion of the first fastening element 14, the front side 34 of the latching part 32, in particular the stop lugs 36, are bent upwards and / or arcuately and / or away from the latching hook 40 at their free ends 36A, such that the latching part 32 can be pushed over the latching hook 40 and the latching hook 40 is pressed downwards by the latching part 32 during further insertion until the latching hook 40 engages in the undercut 38.

[0037] For the precise positioning of the latching part 32, in particular the stop lugs 36, according to Figure 5The assembled end stop 30 has a particularly recessed lug seat 31 which receives the stop lug 36 at least substantially without play. In this way, the first fastening element 14 can be fixed in an exact position by means of the latch hook 40 and the lug seat 31.

[0038] In addition, according to Figure 1 and Figure 6 the latch part 32 has a sliding part 42 on one side, which sliding part has a first slider 42A on the left side and a second slider 42B on the right side, wherein the sliding part 42, in particular the first slider 40A and the second slider 42B, cooperate with the guiding part 28.

[0039] According to Figure 3 and Figure 5 the first fastening element 14 also has a frustum cone 44 adjacent to the latch part 32 and a head part 46 adjacent to the frustum cone 44. The frustum cone 44 is preferably arranged between the latch part 32 and the head part 44. The undercut 38 is preferably arranged between the frustum cone and the stop lug 36.

[0040] According to Figure 3 and Figure 5 the frustum cone 44 extends along a cone axis 48 which extends perpendicular to the guiding axis 26 in the latched position. The frustum cone 44 is preferably formed as hollow. The frustum cone 44 has a first cone end 50 facing the second fastening element 20 and a second cone end 52 opposite the first cone end 50 and facing the first fastening interface 16 and / or the head part 46. The frustum cone 44 tapers from the first cone end 50 to the second cone end 52 along the cone axis 48, i.e. the diameter of the frustum cone 44 decreases. The frustum cone 44 also has a cone wall thickness 54 which is at least partly constant along the cone axis 48 except for a local reduction. In order to form a predetermined breaking point 56, a material taper is formed on the frustum cone 44. If a determined breaking force acts on the headlight 12 and / or on the motor vehicle and / or on the fastening device 10, the predetermined breaking point 56 will be broken, so that damage to the remaining parts is reduced or prevented. The material taper can preferably be formed by a groove 56A introduced into the frustum cone 44 from the radial outside. Thus, if the frustum cone 44 has already been mounted on the latch part 32 and / or the head part 46, the predetermined breaking point 56 can also be easily introduced. Advantageously, the latch part 32 and / or the frustum cone 44 and / or the head part 46 are integrally formed, in particular by co-injection molding. The groove 56A can preferably already be provided during the injection molding.

[0041] The wall thickness 54 of the conical body is preferably substantially constant between the first conical body end 50 and a predefined breaking point 56 and / or between the second conical body end 52 and the predefined breaking point.

[0042] The head part 46 has a first fastening interface 16, in which the first fastening interface 16 particularly receives a fastening device. The fastening interface 16 extends parallel to the conical axis 48 and is arranged at a distance from the conical axis 48.

[0043] Furthermore, a tolerance compensation element 58 (in particular having an internal hexagon) can preferably be arranged on the fastening device 10 in the form of a screw. The tolerance compensation element 58 can preferably be arranged on the first fastening element 14, particularly on the first fastening interface 16, or on the second fastening element 20, particularly on the second fastening interface 22, and is preferably height-adjustable such that the distance from the motor vehicle can be adjusted individually.

Claims

1. A fastening device (10) for fastening a headlight (12) in a motor vehicle, the fastening device (10) comprising: a first fastening element (14) having a first fastening interface (16) for fastening to the motor vehicle, at least one second fastening element (20) which is formed separately from the first fastening element (14) and has a fastening element for fastening to the headlight (12) The second fastening interface (22), wherein the first fastening element (14) and the second fastening element (20) are reversibly connectable to one another by means of a latching connection, and The predetermined breaking point (56) is arranged on the first fastening element (14) and / or on the second fastening element (20).

2. The fastening device (10) according to claim 1, wherein the predetermined breaking point (56) is formed as a local material taper.

3. The fastening device (10) according to claim 1 or 2, wherein the first fastening element (14) or the second fastening element (20) has a truncated cone (44), and wherein the predetermined breaking point (56) is arranged on the truncated cone (44).

4. The fastening device (10) according to claim 3, wherein the truncated cone (44) arranged on the first fastening element (14) has a first conical end (50) facing the second fastening element (20) and a second conical end (52) opposite to the first conical end (50) and facing the first fastening interface (16), and wherein the truncated cone (44) tapers from the first conical end (50) to the second conical end (52).

5. The fastening device (10) according to claim 3 or 4, wherein the truncated cone (44) is formed hollow and wherein the truncated cone (44) has a constant cone wall thickness (54) except for a local reduction (56A) of the cone wall thickness (54) at the predetermined breaking point (56).

6. The fastening device (10) according to one of the preceding claims, wherein the first fastening element (14) and / or the second fastening element (20) has a latching portion (32).

7. The fastening device (10) according to claim 6, wherein the latching portion (32) has at least one undercut (38).

8. A fastening device (10) according to claim 6 or 7, wherein the first fastening element (14) for latching connection with the second fastening element (20) or the second fastening element (20) for latching connection with the first fastening element (14) has a latching hook (40), wherein when a latching connection exists, the latching hook (40) engages in the latching part (32), in particular in the undercut (38), so that the first fastening element (14) is fixed to the first fastening element (20).

9. The fastening device (10) according to one of the preceding claims, wherein the first fastening element (14) has a guide portion (28) extending along a guide axis (26) in order to guide the second fastening element (20) or The second fastening element (20) has a guide portion extending along a guide axis (26) for guiding the first fastening element (14).

10. The fastening device (10) according to claim 9, wherein the first fastening element (14) has a sliding portion (42) which cooperates with the guide portion (28) when the second fastening element (20) is inserted into the first fastening element (14), or The second fastening element (20) has a sliding portion (42) which cooperates with the guide portion (28) when the first fastening element (14) is inserted into the second fastening element (20).

11. A headlight assembly having a fastening device (10) according to one of the preceding claims and a headlight (12) for a motor vehicle.

12. A headlight assembly according to claim 11, wherein the fastening device (10) and the motor vehicle are formed separately from each other.

13. A motor vehicle having a fastening device (10) according to one of claims 1 to 10 or having a headlight assembly according to claim 11 or 12.

14. A kit for different motor vehicles (12) and / or for different headlights (12), the kit comprising a plurality of fastening devices (10), in particular according to one of claims 1 to 10.

15. The kit of claim 14, wherein the kit comprises: - a plurality of different first fastening elements (14), and - A second fastening element (20).

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