System comprising a workpiece, a fastening element and a fastening device

Abstract

System comprising a workpiece (100), a first fastening element (101) and a fastening device (300), wherein the first fastening element (101) can be fastened to and detached from the workpiece (100) by means of the fastening device (300), wherein the first fastening element (101) comprises a first bevel gear element and the fastening device comprises a second bevel gear element (103), wherein the first and the second bevel gear elements (103) are configured to interlock and act together as a bevel gear when the first fastening element (101) is fastened to the workpiece (100) and / or when the first fastening element (101) is detached from the workpiece (100), wherein the workpiece (100) has a first stop (104) against which a partial area of ​​the fastening device (300) can be applied.wherein in the position of the partial section of the fastening device (300) applied to the first stop (104), the second bevel gear element (103) is engaged with the first bevel gear element, characterized in that the system comprises a second fastening element (102) which can be fastened to the workpiece (100) by means of the fastening device (300) and can be detached from the workpiece (100), wherein the second fastening element (102) comprises a third bevel gear element, wherein the second bevel gear element (103) and the third bevel gear element are configured to engage with each other and act together as a bevel gear when the second fastening element (102) is fastened to the workpiece (100) and / or when the second fastening element (102) is detached from the workpiece (100), wherein the workpiece (100) has a second stop (105) against which the partial section of the fastening device (300) can be applied.wherein in the position of the partial section of the fastening device (300) applied to the second stop (105), the second angle gear element (103) can be brought into engagement with the third angle gear element, wherein the workpiece (100) is a component of a rear spoiler of a motor vehicle, wherein the first fastening element (101) and / or the second fastening element (102) must be released for positioning the rear spoiler, wherein the workpiece (100) comprises a through-opening (301), wherein the partial section of the fastening device (300) can be passed through the through-opening (301) in order to apply the partial section to the first stop (104) or optionally to the second stop (105).

Description

[0001] The invention relates to a system comprising a workpiece, a fastening element and a fastening device according to the preamble of claim 1.

[0002] When assembling workpieces, a common problem is that fasteners are difficult to access. Often, a fixture is used to secure a fastener. For example, if a screw is to be attached to a workpiece, the fixture requires space that is not always available.

[0003] German patent DE 10 2014 112 718 A1 describes a fastening device with which a fastening element can be attached to a workpiece via an angle gear. The angle gear enables favorable positioning of the fastening device.

[0004] In contrast, the present invention aims to create a system and a method that each enable simpler positioning of the fastening device.

[0005] This problem is solved by a system according to claim 1 and by a method according to claim 6. Embodiments of the invention are specified in the dependent claims.

[0006] The system comprises a workpiece, a first fastening element, and a fastening device. The first fastening element can be, for example, a screw. The first fastening element can be attached to and detached from the workpiece using the fastening device. For example, the first fastening element can be screwed into and unscrewed from the workpiece. For this purpose, the workpiece can have a recess with an internal thread, and the first fastening element can have an external thread.

[0007] The first fastening element comprises a first bevel gear element. The fastening device comprises a second bevel gear element. The first and second bevel gear elements are designed to interlock and function together as a bevel gear when the first fastening element is fastened to the workpiece and / or when the first fastening element is detached from the workpiece. For the purposes of this description, a bevel gear element is understood to mean, in particular, that a rotation of the second bevel gear element can cause a rotation of the first bevel gear element, wherein the longitudinal axes of the fastening device and the first fastening element are not parallel to each other.

[0008] For example, the first bevel gear element can be designed as a helical gear or a worm gear. The second bevel gear element can have a thread. During operation, the thread engages with the teeth of the helical gear or the worm gear.

[0009] The workpiece has a first stop against which a section of the fastening device can be positioned. In the position of this section against the first stop, the second bevel gear element can engage with the first bevel gear element. The stop thus defines a position for the fastening device in which the fastener can be attached to and / or detached from the workpiece. This significantly simplifies the positioning of the fastening device.

[0010] The system comprises a second fastening element that can be attached to and detached from the workpiece using the fastening device. The second fastening element includes a third bevel gear element. The second bevel gear element and the third bevel gear element are designed to interlock and function together as a bevel gear when the second fastening element is attached to the workpiece and / or when the second fastening element is detached from the workpiece. In particular, it is possible for the third bevel gear element to be similar to or identical in design to the first bevel gear element.

[0011] The workpiece has a second stop against which the partial area of ​​the fastening device can be placed, wherein in the position of the partial area of ​​the fastening device placed against the second stop the second angle gear means can be brought into engagement with the third angle gear means.

[0012] The workpiece is a component of a rear spoiler for a motor vehicle. During vehicle assembly, workpieces often need to be adjusted, which is only possible with the fasteners loosened. Therefore, particularly easy fastening and loosening of the fasteners is especially advantageous.

[0013] The first and / or second fastening element(s) must be loosened to position the rear spoiler. The rear spoiler may, in particular, be a retractable rear spoiler. For example, it is possible that the correct positioning of the rear spoiler can only be checked when it is retracted. Unfortunately, it is also possible that, due to poor accessibility, the fastening elements can only be loosened and tightened when the spoiler is extended. It is therefore particularly advantageous to use embodiments of the invention when mounting a retractable rear spoiler, since the fastening elements can be loosened and tightened when the rear spoiler is retracted, allowing the correct positioning to be checked directly without having to extend and retract the spoiler.

[0014] The workpiece includes a through-hole. The section of the fastening device can be passed through the through-hole in order to position the section against the first stop or, optionally, against the second stop.

[0015] According to one embodiment of the invention, the portion of the fastening device that can be applied to the first stop can be an end region of the fastening device. The end region is understood to be, in particular, the region that comprises one-third or even only one-quarter of the length of the fastening device and is located at the end of the fastening device near which the second angle gear element is located.

[0016] It is particularly possible that the end area comprises only an end surface of the fastening device. In this case, the end surface can be placed against the stop. The end surface can, in particular, represent the longitudinal end of the fastening device.

[0017] It is possible that the fastening device includes an attachment, the attachment comprising the second angle gear element. The attachment may be removable from the fastening device. For example, the attachment may be a bit attachment.

[0018] According to one embodiment of the invention, the second bevel gear element can be arranged in the end region or adjacent to the end region. This arrangement of the second bevel gear element simplifies positioning, since the distance between the end region and the second bevel gear element is comparatively small.

[0019] The method according to claim 6 serves to fasten a first fastening element to a workpiece by means of a fastening device. The first fastening element comprises a first bevel gear element. The fastening device comprises a second bevel gear element. The workpiece comprises a first stop and a second stop.

[0020] A section of the fastening device is positioned against the first stop, passing through a through-hole in the workpiece so that the first and second bevel gear elements form a bevel gear. The first fastening element is secured to the workpiece by transferring a rotational movement from the second bevel gear element to the first bevel gear element. The first fastening element can be released from the workpiece by rotating the second bevel gear element in the opposite direction.

[0021] According to one embodiment of the invention, the method for attaching a second fastening element with a third angle gear element to the workpiece can be designed using the fastening device. The workpiece can have a second stop for this purpose.

[0022] The section of the fastening device is positioned against the second stop, and this section is guided through the through-hole so that the second and third bevel gear components form a bevel gear. The second fastening element is attached to the workpiece by transferring a rotational movement from the second bevel gear component to the third bevel gear component. The second fastening element can be released from the workpiece by rotating the second bevel gear component in the opposite direction.

[0023] Further features and advantages of the present invention will become clear with reference to the following description of preferred embodiments and the accompanying figures. The same reference numerals are used for identical or similar components and for components with identical or similar functions. Fig. Figure 1 shows a schematic perspective view of a workpiece with two fastening elements. Fig. Figure 2 shows an enlarged view of the workpiece. Fig. 1. Fig. Figure 3 shows a schematic view of the workpiece made of Fig. 1 from a different perspective and a mounting device. Fig. Figure 4 shows an enlarged view of the workpiece. Fig. 3.

[0024] The workpiece 100 shown in the figures is the lower part of a rear spoiler for a motor vehicle. A first fastening element 101 and a second fastening element 102 can be attached to the workpiece 100. The rear spoiler can be attached to the motor vehicle, for example, using the fastening elements 101 and 102.

[0025] Furthermore, in the Fig. 1 and Fig. Figure 2 shows an attachment 103 of a fastening device in two different positions. The attachment 103 has a thread. The fastening elements 101 and 102 have a helical gear.

[0026] The workpiece 100 comprises a first stop 104 and a second stop 105. The attachment 103 can be positioned against both the first stop 104 and the second stop 105. When the attachment 103 is positioned against the first stop 104, its thread engages with the helical gear of the first fastening element 101. In this state, the thread and the helical gear of the first fastening element 101 form a bevel gear. By rotating the attachment 103, the first fastening element 101 can then be fastened to or detached from the workpiece 100. When the attachment 103 is positioned against the second stop 105, the thread of the attachment 103 engages with the helical gear of the second fastening element 102. In this state, the thread and the helical gear of the second fastening element 102 form an angle gear.By rotating the attachment 103, the second fastening element 102 can be attached to or detached from the workpiece 100.

[0027] In Fig. Figure 3 shows the complete fastening device 300, of which the attachment 103 is a component. A part of the fastening device 300 can be passed through a through-opening 301 of the workpiece 100, so that the fastening elements 101 and 102 can be attached to or detached from the workpiece 100 by means of the fastening device 300.

[0028] When the attachment 103 is positioned against the first stop 104, part of the fastening device 300 is guided over the second fastening element 102. When the attachment 103 is positioned against the second stop 105, it is located below the second fastening element 102. In this way, both the first fastening element 101 and the second fastening element 102 can be fastened or detached through the same through-hole 301 without the second stop 105 obstructing the fastening device 300 when the attachment 103 is to be positioned against the first stop 104.

Claims

[1] System comprising a workpiece (100), a first fastening element (101) and a fastening device (300), wherein the first fastening element (101) can be fastened to the workpiece (100) by means of the fastening device (300) and can be detached from the workpiece (100), wherein the first fastening element (101) comprises a first bevel gear element and the fastening device comprises a second bevel gear element (103), wherein the first and the second bevel gear element (103) are configured to interlock and act together as a bevel gear when the first fastening element (101) is fastened to the workpiece (100) and / or when the first fastening element (101) is detached from the workpiece (100), wherein the workpiece (100) has a first stop (104) against which a partial area of ​​the fastening device (300) can be applied,wherein in the position of the partial area of ​​the fastening device (300) applied to the first stop (104) the second angle gear means (103) is engaged with the first angle gear means, characterized bythat the system comprises a second fastening element (102) which can be attached to and detached from the workpiece (100) by means of the fastening device (300), wherein the second fastening element (102) comprises a third bevel gear element, wherein the second bevel gear element (103) and the third bevel gear element are configured to interlock and act together as a bevel gear when the second fastening element (102) is attached to the workpiece (100) and / or when the second fastening element (102) is detached from the workpiece (100), wherein the workpiece (100) has a second stop (105) against which the portion of the fastening device (300) can be applied, wherein in the position of the portion of the fastening device (300) applied against the second stop (105) the second bevel gear element (103) can be brought into engagement with the third bevel gear element,wherein the workpiece (100) is a component of a rear spoiler of a motor vehicle, wherein the first fastening element (101) and / or the second fastening element (102) must be released for positioning the rear spoiler, wherein the workpiece (100) comprises a through-opening (301), wherein the portion of the fastening device (300) can be passed through the through-opening (301) in order to position the portion against the first stop (104) or optionally against the second stop (105). [2] System according to the previous claim, characterized by , that the partial area of ​​the fastening device (300) that can be applied to the first stop (104) is an end area of ​​the fastening device (300). [3] System according to the previous claim, characterized by , that the second angle gear means (103) is arranged in the end region or adjacent to the end region. [4] Method for fastening a first fastening element (101) and a second fastening element (102) to a workpiece (100) by means of a fastening device (300), wherein the first fastening element (101) comprises a first bevel gear means, the fastening device (300) comprises a second bevel gear means (103) and the second fastening element (102) comprises a third bevel gear means, wherein the workpiece (100) comprises a first stop (104) and a second stop (105), wherein the workpiece (100) is part of a rear spoiler of the motor vehicle, wherein the first fastening element (101) and / or the second fastening element (102) must be loosened for positioning the rear spoiler, wherein the method comprises the following steps: - Applying a partial section of the fastening device (300) to the first stop (104), wherein the partial section of the fastening device (300) is passed through a through-hole (301) of the workpiece (100), so that the first bevel gear means and the second bevel gear means (103) form a bevel gear, and - Attaching the first fastening element (101) to the workpiece (100) by transferring a rotational movement of the second bevel gear element (103) to the first bevel gear element; - Applying the partial section of the fastening device (300) to the second stop (105), wherein the partial section of the fastening device (300) is passed through the through-hole (301) so that the second bevel gear means (103) and the third bevel gear means form a bevel gear, and - Attachment of the second fastening element (102) to the workpiece (100) by transferring a rotational movement of the second angle gear element (103) to the third angle gear element.

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