DE102018107083A1 - Fastening device and method for fastening an attachment to a support member, component system and motor vehicle - Google Patents

Abstract

A fastening device (10) for fastening an attachment (50) to a support part (40), in particular a wheel housing shell on a body component, while maintaining a distance (A) between the attachment (50) and support member (40) comprises a plug (20) for Insertion into a first passage opening (42) of the support part (40) along a longitudinal axis (64) of the insertion part (20). The insertion part (20) comprises at least one blocking element (22) for forming an undercut (24) which engages behind the material forming the first passage opening (42) in order to produce a positive connection between the insertion part (20) and the support part (40). It furthermore comprises at least one spacer element (27) for positioning on the side of the carrier part (40) opposite the blocking element (22) for the purpose of realizing the distance (A) between the attachment part (50) and the carrier part (40). The spacer (27) extends at least partially along a plane perpendicular to the longitudinal axis (64) of the male part (20) aligned first plane. The blocking element (22) extends at least regionally along a second plane oriented parallel to the first plane such that it can be locked behind the supporting part (40) by rotation of the insertion part (20) about the longitudinal axis (64) to form the undercut (24) ,

Description

The invention relates to a fastening device and a method for fastening an attachment to a support member, in particular a wheel housing shell on a body component, while maintaining a distance between attachment and support member, a component system and a motor vehicle, in particular a passenger car.

In certain applications, it is necessary to attach an attachment while maintaining a distance to a support member. This may be desirable, for example, to prevent occurring due to mechanical contact of the two components occurring corrosion. Thus, components contacting one another can rub against one another during relative movements, for example as a result of vibrations, and thus cause damage. In the contact area of the components penetrating sand or dirt can promote such damage, which is the case, for example, in the attachment of wheel housing shells to body parts.

There are known Kunststoffspreizklipse that fix two components together, while a spine spreads the clips apart and realized in this way a positive connection. On the one hand, there is no distance between the attachment and the supporting part, so that corrosion can occur as described. On the other hand, the strength of the connection decreases over time, for example as a result of heat or cold, so that relative movements between the components are further promoted.

Known fastening devices include, for example, an expansion nut to be anchored in the supporting part and a screw. In this case, the expansion nut also serves as a spacer between the support member and attachment and thus prevents direct contact of the components. Such a system is from the DE 10 2012 015 379 A1 known, which discloses an expansion anchor for attachment of an attachment to a shell component. The two-part expansion dowel comprises a dowel part for arrangement in a passage opening of a motor vehicle shell component. The dowel part comprises a collar, which rests in the arranged state on the passage opening forming material of the shell component, while a shaft part of the dowel part protrudes through the through hole. Furthermore, the expansion anchor comprises a separate plug-in part for insertion into the dowel part, by means of which the shaft part of the dowel part can be spread open in order to fix the dowel part on the shell part. The dowel part comprises a spacer for realizing a distance between the attachment and the shell component.

The arrangement of the attachment in the desired relative position to the shell component takes place after insertion of the dowel part in the shell part. Afterwards the plug-in part is positioned and plugged in.

The DE 10 2011 010 637 A1 describes a device for fastening two components with respective through holes. This comprises a first fastening element having a head portion and a substantially circular cylindrical shaft portion and a second fastening element, which is arranged in the manner of a sleeve for receiving the shank portion of the first fastening element, wherein a rotation of the fastening elements about an aligned along the longitudinal axis of the shaft portion axis of rotation is possible , Within the first fastener a fixing screw is to be arranged. Upon rotation of the fastening screw, the second fastening element is rotated in the first fastening element by a defined angle and then comes to a stop. Upon further rotation of the fastening screw, the second fastening element is pulled against the first fastening element and pressed there. The device further has sealing surfaces which prevent a passage of liquid through the passage opening of the second component.

The DE 10 2004 035 009 A1 discloses a fastening device for fastening panels in the automotive industry. This comprises a receptacle for a Einsteckclip, which can be inserted into an opening of a component to be fastened. The receptacle comprises a spacer rib, which rests against the component under pretension in the installed state. The plug-in clip has a head part to be fastened to a body and a retaining foot which can be inserted into an opening of the component. In the inserted state, there is a radially tapered region of the holding foot in a passage opening of the component to be fastened and a region of the holding foot having a larger diameter on the side of the tapered region facing away from the head part, so that the component is fastened in a form-fitting manner to the insertion clip.

The DE 10 2007 010 690 A1 describes a device for connecting a door module to an inner panel of a motor vehicle door. This comprises a clip for insertion into an opening of the inner panel and for engaging behind the edge region of the opening, a holding device for holding the clip and a receptacle for guiding the clip in the direction of the opening. The device is provided as an integral part of a door module, so that for the purpose of fixing the door module on the inner panel after the positioning of the two components of the clip is movable in the direction of the opening and is inserted in this way in the opening.

The DE 10 2010 024 419 A1 describes a fastening device for fastening a first component to a second component of a vehicle. The fastening device comprises a base body with a head, a mandrel arranged thereon, and at least one wing which is mounted rotatably about the mandrel of the base body with at least two spreader arms for realizing a clamping connection between the fastening device and the second component at a relative Rotation between the body and spreader of the fastening device. The wings serve to realize a distance between the two components.

It can be seen that a part of the known fastening devices is constructed in several parts and in this way brings high manufacturing costs, longer installation times and low adaptability to different fastening tasks. The other part of the known fastening devices is complicated and thus expensive and also hardly adaptable to different fastening tasks.

It is the object of the invention to provide a fastening device, a method for fastening and a component system by means of which the attachment of an attachment to a support member while maintaining a distance between attachment and support member in a particularly simple and inexpensive manner can be realized.

The object is achieved by the fastening device according to claim 1, the component system according to claim 7 and the method for fastening according to claim 8. Embodiments of the fastening device are specified in the dependent claims 2-6, an embodiment of the method is specified in subclaim 9. Furthermore, a motor vehicle according to claim 10 is provided.

A first aspect of the invention is a fastening device for fastening an attachment to a support member, in particular a wheel housing shell on a body component, while maintaining a distance between the attachment and support member. The fastening device comprises an insertion part for insertion into a first passage opening of the support part along a longitudinal axis of the insertion part. The insertion part comprises at least one blocking element for forming an undercut, which engages behind the material forming the first passage opening, in order to produce a positive connection between the insertion part and the supporting part. It furthermore comprises at least one spacer element for positioning on the side of the carrier part opposite the blocking element for the purpose of realizing a distance between the attachment and the carrier part. The spacer element extends at least partially along a plane oriented perpendicular to the longitudinal axis of the plug-in first plane. The blocking element extends at least regionally along a second plane aligned parallel to the first plane such that it can be locked behind the supporting part by means of rotation of the insertion part about the longitudinal axis for the purpose of forming the undercut.

In this embodiment, the fastening device comprises only the insertion part. This is set up for insertion into the first passage opening along a plug-in direction. In other words, the longitudinal axis of the male part, which is also the longitudinal axis of the fastening device, corresponds to the insertion direction. In particular, the insertion part also serves for insertion into a second passage opening of the attachment along the insertion direction. The blocking element serves to produce the positive connection between the insertion part and the support part in such a way that withdrawal of the insertion part from the support part against the insertion direction is prevented. In other words, an interlocking of the locking element takes place behind the material of the support part forming the first passage opening. The male part is typically made of plastic.

The spacer element is set up for arrangement between the attachment and the support member. Between spacer and male part a gap is arranged. In this is the intended use of the fastening device after rotation of the male part, a region of the support member, so that the male member or the fastening device is fixed by means of the locking element and the spacer form-fitting manner on the support member. In particular, this takes place in such a way that further insertion of the plug-in part along the plug-in direction is prevented.

The at least partially extending the spacing element along the first plane means that the spacing element has at least one edge or surface which is aligned along the first plane. In particular, this edge or surface in the mounted state of the fastening device is used to make contact with the attachment or the supporting part for the purpose of realizing the distance between the two parts. Typically, the spacer has two substantially parallel aligned edges or surfaces, wherein a first edge or surface in the assembled state of the attachment means of the contact the attachment and a second edge or surface of the contacting of the support member is used.

The at least partially extending the blocking element along the second plane means that the blocking element has at least one edge or surface, which is aligned along the second plane. In particular, this edge or surface in the mounted state of the fastening device serves to make contact with the supporting part for the purpose of realizing the undercut. Typically, the locking element and the spacer are rigidly arranged on the male part.

In particular, the insertion part has at least two and for example exactly two locking elements. The locking elements extend outward along the radial direction of the male part. In particular, the insertion part has at least two and for example exactly two spacer elements. The spacers extend outwardly along the radial direction of the male member. The number of spacer elements is in particular equal to the number of blocking elements.

In the case of two blocking elements or spacer elements, these extend in particular in a radial angle range between 5 ° and 90 °, for example between 15 ° and 60 ° relative to the longitudinal axis of the male part. In the radial angle regions in which no blocking element or spacing element is arranged, the insertion part can be guided past the material forming the first or second through-hole when it is inserted. When interleaving following the insertion, the angular range of the locking element is rotated behind the material of the support part forming the first passage opening and, in particular, the angular range of the spacer between the materials of the support part and the attachment forming the first and second passage openings. In other words, the rotation of the male part is used in particular both the entanglement of the locking element behind the support member for the purpose of realization of the undercut and the entanglement of the spacer between the attachment and support member in order to realize the distance between them. The realization of a distance in the sense of the invention means the production and / or the maintenance of a distance.

Alternatively, or in addition to the entanglement of the blocking element and / or the spacer element, the blocking element or the spacer element may have a spreading element or an expanding nut, by means of which when exercising a force, for example when screwing a screw, a radially outward spread for the purpose of producing a force - And / or positive connection to the first and second passage opening can be realized.

In particular, the insertion part is constructed in a rotationally symmetrical manner in relation to a pivot point located on the longitudinal axis in cutting planes arranged perpendicular to its longitudinal axis. In other words, the longitudinal axis of the male part is an axis of symmetry of the male part.

The radial extent of the spacer element, that is to say the length of the spacer element between the longitudinal axis of the plug-in part and the point furthest away from the latter, is in particular greater than the radial extent of the blocking element measured in an analogous manner. In this way, the locking element is inserted through the second through hole of the attachment and through the first passage opening of the support member, in the arrangement of the male part in a composite of support member and attachment, while the spacer element only through the second passage opening of the attachment, but not through the first passage opening fits the support part. Thus, the spacing element remains in the desired position on the surface of the material forming the first through-opening or between the attachment and the supporting part in order to maintain the spacing.

It can be seen that the fastening device according to the invention is simple and inexpensive to produce and can be mounted in one piece in a particularly simple manner. Thus, the assembly is much easier while maintaining a distance between an attachment and a support member. Even an oblique assembly to compensate for component tolerances is possible.

An embodiment of the fastening device for fastening an attachment to a support member is characterized in that the attachment means arranged in the male part or anordbare screw for rotating the male part about the longitudinal axis for the purpose of forming the undercut and / or for positive connection of the attachment with the male between the Distance element and a head of the screw includes.

In particular, the screw is arranged or can be arranged in the plug-in part such that the plug-in part is rotated together with the screw in a first rotational phase of the screw. In other words, there is no relative movement between the screw and the insertion part in this rotational phase. For this purpose, a sufficiently strong connection of screw and male part is provided. This serves to entangle the locking element behind the support member for the purpose of forming the undercut. In particular, as described, the entanglement also takes place of the spacer between the attachment and support member in order to realize the distance between them. The screw can be arranged along the longitudinal axis of the insertion part. Typically, it is arranged in a suitable screw receptacle of the male part, for example a suitable blind hole or thread.

In particular, the screw is furthermore arranged in the insertion part in such a way that, in a second rotational phase, which follows the first rotational phase, it is rotated relative to the insertion part and thus further screwed into the insertion part. This serves in particular to reduce the distance between the screw head and the attachment for the purpose of producing the positive connection of the attachment with the insertion part. For this purpose, the connection between the screw and the male part must not be too tight. The assembly can be done in one operation, for example, with a cordless screwdriver, wherein the first and the second phase of rotation follow each other without interruption.

By such a configuration of the fastening device, the attachment of the attachment to the male part is independent of the thickness of the attachment possible. It is also possible by using the screw to fix several attachments or multiple layers of attachments one above the other on the plug. In this way, a single fastening device can be used for different mounting purposes.

Another advantage is that screws are inexpensive and have high availability. Another advantage of this embodiment of the fastening device according to the invention is that only the head of the screw is visible in the intended mounted state. Therefore, for example, light or colored plug-in parts can be used, which reduce the number of errors due to their better visibility during assembly, without this being visible in the assembled state.

A further embodiment of the fastening device is characterized in that between the blocking element and the spacer element is arranged along a direction of rotation of the male part tapering space. Thus, the rotation of the male member along the direction of rotation causes contacting of a portion of the support member located in the gap with a portion of the male member, particularly the locking member and / or the spacer. In this way, the male is secured against over-rotation.

Accordingly, the volume of the gap along the direction of rotation decreases substantially constant. The distance between the blocking element and the spacer element can be reduced and / or the radial boundary of the intermediate space can be reduced. In the latter case, the area of the insertion part delimiting the gap has a radius which increases along the direction of rotation.

When interleaving, the rotation of the insertion part takes place in such a way that the material forming the first passage opening enters into the intermediate space or is enclosed on both sides by the latter. In particular, the support member contacts the locking element and the spacer in the space. The tapered space may be bounded by flat surfaces, slopes and / or steps.

This embodiment has the advantage that the insertion is secured in a particularly simple manner against over-rotation. In this way, it is reliably prevented that the entanglement is canceled by further rotation and the fastening of the male part on the support part is released.

In a further embodiment, the fastening device has a frame part rotatably connected to the plug-in part for insertion into the first through-opening of the support part and / or into a second through-opening of the add-on part along the longitudinal axis of the plug-in part. In this case, the frame part has at least one contact point, in particular at least one abutment edge or surface, for abutment against an inner wall of the first or second through opening, so that in the inserted state in the first or second through hole of the rotational degree of freedom of the frame part about the longitudinal axis of the plug is blocked.

The male member is rotatable relative to the frame member about its longitudinal axis. Rotationally connected in the sense of the invention means that the connection has at least one rotational degree of freedom along at least one direction and blocks at least one rotational and / or translatory degree of freedom of the connected elements along at least one direction. In other words, there need not necessarily be a hinge having only one degree of freedom.

By the investment of the point of contact on the inner wall of at least one through hole, the frame part does not rotate with the rotation of the male part after arrangement of the fastening device in the first and second through hole. In particular, the frame part is designed for insertion into the first and the second through-opening.

This embodiment has the advantage that the frame part is suitable for a particularly fixed arrangement of the fastening device on the supporting part or on the attachment. In addition, the friction occurring during rotation of the male part is minimized to the respective passage opening, since no movement takes place on the wall of the respective passage opening during the rotation. In this way, the assembly of the parts can be further simplified.

In a further embodiment, the frame part has at least one stop element for abutment of a region of the insertion part, in particular of the blocking element and / or of the spacer element, in a defined angular position of the insertion part with respect to the frame part. In this way, beyond the defined angular position beyond rotation of the male part can be blocked.

The defined angular position of the male member relative to the frame member means an angular position related to the longitudinal axis of the male member. For example, a part of the frame part can be configured as a stop element. This embodiment is suitable for preventing further rotation of the male part beyond that position in which the blocking element is interlocked behind the supporting part. This embodiment has the advantage that it is possible in the presence of a frame part in a particularly simple manner, a safeguard against over-rotation.

A further embodiment of the fastening device is characterized in that the fastening device has at least one clamping device arranged on the frame part for non-positive and / or positive connection of the frame part with the material forming the first or second through-opening.

The clamping device is also referred to as a captive. In particular, it serves to connect the frame part to the attachment part in the inserted state of the attachment device in the attachment part. For example, the clamping device may comprise a clamping hook or barbs for engaging behind the material forming the first or second passage opening, wherein the clamping hook is arranged such that it is biased into the corresponding passage opening during the insertion of the fastening device, such as by means of a resilient element he moves due to its bias after insertion automatically into the undercut forming position or permanently in this position remains.

This embodiment allows a pre-assembly of the fastening device on to be connected to the support member attachment. This has the advantage that the subsequent assembly can be done in a particularly simple and rapid manner.

In a further embodiment of the fastening device, at least two locking elements are arranged on a first plate-shaped element and / or at least two spacer elements on a second plate-shaped element. The plate-shaped elements are aligned perpendicular to the longitudinal axis of the fastening device. In particular, they are made substantially rectangular, so that they are suitable for insertion into rectangular holes and causes a rotation of the male part by about 90 °, the entanglement of the locking element behind the support member or the entanglement of the spacer between the support member and attachment.

A second aspect of the invention is a component system comprising a fastening device according to the invention, a supporting part and an attachment. In this case, a positive connection between the support member and the male member is realized by means of the locking element, it is realized by means of the plug a distance between the support member and attachment and it is realized by means of the screw a positive connection between the attachment and the plug.

In other words, the male part is positively connected by entanglement of its locking element behind the support member with this, by means of the spacer the male part maintains a distance between the support member and the attachment and the attachment is positively connected by means of the head of the screw with the spacer element. It can be seen that the attachment means for attaching the attachment to the support member while maintaining the distance between the parts.

A third aspect of the invention is a method for fastening an attachment to a support member, in particular a wheel housing shell on a body component, while maintaining a distance between the attachment and support member. In this case, a support member having a first passage opening and an attachment with a second passage opening are positioned relative to each other. An insertion part of a fastening device according to the invention is inserted along its longitudinal axis into the first passage opening. There is a rotation of the male part about its longitudinal axis, so that the locking element realizes an undercut, which engages behind the material forming the first passage opening. It is realized by means of a screw a positive connection between the attachment and the male part.

The turning of the male part takes place after insertion of the male part in the first through hole of the support member. By means of the undercut a positive connection between the male and the support member is made. The insertion of the male member is such that the aligned along the second plane portion of the locking member is at the height of the support member or behind the support member, so that the rotation is enabled.

The relative positioning of attachment and support part means, in particular, an arrangement of the attachment to the support member, this being done in particular in that position in which the attachment is to be attached to the support member. The parts do not necessarily have to contact each other.

In particular, the passage opening of the attachment along at least one radial direction is greater than the passage opening of the support member, so that the spacer element during insertion of the male member through the attachment, but not passed through the support member. In this way, a contact between the spacer and the support member is made during insertion into the desired position of the male part on the support member, so that the arrangement of the fastening device is simplified on the support member.

Typically, the through holes have a different cross-section from the circular cross-section. As described, they may for example be rectangular, so that blocking elements or spacer elements which form a rectangular contour or are arranged together on rectangular plate-shaped elements can be inserted through the at least one passage opening in a relative position of the fastening device to the respective passage opening and by rotation by 90 ° behind the corresponding passage opening forming material are verschränkbar.

The rotation of the male member relative to the attachment or support member is at an angle between 0 ° and 360 °, in particular between 10 ° and 180 °, for example between 20 ° and 120 °, and in one embodiment about 90 °. In particular, the angle of rotation of the male part is defined by limiting elements of the fastening device, such as a stop element of the frame part or a gap between the blocking element and the spacer element. It is to be selected depending on the number of spacers and the locking elements.

In particular, as described, the realization of the distance between the supporting part and the attachment takes place during the rotation of the insertion part as well.

In particular, the rotation of the male part by means of rotation of the already arranged on the male screw. Thus, only a single processing step is necessary, namely the rotation of the screw to realize the undercut of the locking element behind the support member on the one hand and the positive connection between the attachment and male part on the other hand.

An embodiment of the method for fastening an attachment to a support member is characterized in that the insertion member is disposed in the second passage opening of the attachment before the relative positioning of the attachment and the support member.

This means, in particular, that the relative positioning of the attachment and of the support part begins after the arrangement of the insertion part in the second passage opening of the attachment is completed. In other words, the insertion of the male part and, if present, the frame part takes place before the arrangement of the attachment to the support member. The insertion of the fastening device in the first passage opening takes place during or after the positioning of the support member and the attachment to each other. In particular, the positioning of the attachment with the fastening device arranged therein in the determination position on the support member and the insertion of the fastening device already arranged in the attachment in the support member are performed together in one step.

This embodiment has the advantage of a particularly simple and time-efficient installation with it, since the pre-assembly of the fastening device on the attachment for mounting the attachment only the positioning of attachment and fastening means on the support member and the rotation of the male part, in particular by rotation of the screw, are necessary.

Alternatively, the fastening device together with the screw by means of suitable means, such as a cordless screwdriver, inserted and fixed by rotation. In this way, the fastening device can be mounted in one piece and in a simple manner.

In particular, during the rotation of the plug-in part by interleaving the spacer element between the attachment part and the support part, an enlargement of the distance between the attachment part and the support part takes place at least in a region of the attachment part or of the support part. This can be realized, for example, by the fact that the Distance element has a widening along the direction of rotation cross-section.

A fourth aspect of the invention is a motor vehicle, in particular a passenger car. The motor vehicle has at least one fastening device according to the invention, at least one component system according to the invention and / or at least one attachment fastened to a supporting part by the method according to the invention.

For example, the support member may be a body component and the attachment a wheel housing shell of the motor vehicle.

The invention will be explained below with reference to the embodiments illustrated in the accompanying drawings.

• 1: eine schematische Ansicht eines Anbauteils und eines Tragteils, welche mittels der erfindungsgemäßen Befestigungseinrichtung zu verbinden sind,
• 2: eine schematische Ansicht des Anbauteils und des Tragteils aus 1 mit einer ersten Ausgestaltung der erfindungsgemäßen Befestigungseinrichtung vor der Drehung,
• 3: eine schematische Ansicht des Anbauteils und des Tragteils mit der erfindungsgemäßen Befestigungseinrichtung aus 2 nach der Drehung,
• 4: eine Schnittzeichnung B-B der Darstellung aus 2,
• 5: eine Schnittzeichnung A-A der Darstellung aus 3,
• 6: eine schematische perspektivische Darstellung der ersten Ausgestaltung der erfindungsgemäßen Befestigungseinrichtung,
• 7: eine Schnittzeichnung A-A der Darstellung aus 11 vor der Drehung,
• 8: eine Schnittzeichnung A-A der Darstellung aus 11 nach der Drehung,
• 9: eine Schnittzeichnung B-B der Darstellung aus 11 vor der Drehung,
• 10: eine Schnittzeichnung B-B der Darstellung aus 11 nach der Drehung, sowie
• 11: eine Schnittzeichnung einer in einem Tragteil angeordneten zweiten Ausgestaltung der erfindungsgemäßen Befestigungseinrichtung.

Show it

• 1 FIG. 2: a schematic view of an attachment and a supporting part to be connected by means of the fastening device according to the invention, FIG.
• 2 : A schematic view of the attachment and the support part 1 with a first embodiment of the fastening device according to the invention before the rotation,
• 3 : A schematic view of the attachment and the support member with the fastening device according to the invention 2 after the turn,
• 4 : a sectional drawing BB of the representation 2 .
• 5 : a sectional drawing A - A the presentation 3 .
• 6 : a schematic perspective view of the first embodiment of the fastening device according to the invention,
• 7 : a sectional drawing A - A the presentation 11 before the turn,
• 8th : a sectional drawing A - A the presentation 11 after the turn,
• 9 : a sectional drawing B - B the presentation 11 before the turn,
• 10 : a sectional drawing B - B the presentation 11 after the turn, as well
• 11 : A sectional view of a arranged in a support member second embodiment of the fastening device according to the invention.

1 shows a support part 40 and one on the support part 40 while maintaining a distance attachment to be attached 50 , which are arranged in their position to be mounted relative to each other. The supporting part 40 , which is a body made of sheet metal body, has an S-shaped first passage opening 42 on. The above the supporting part 40 arranged attachment 50 , which is a wheel housing made of plastic, has a rectangular shaped second passage opening 52 with rounded corners on. The first passage opening 42 and the second through hole 52 partially overlap each other.

2 shows the presentation 1 after insertion of a fastening device according to the invention 10 , wherein the viewing direction along the longitudinal axis (not shown) of the male part 20 is aligned. Shown is in plan view of her head 82 a screw 80 in the plug-in part 20 is arranged.

Behind the head 82 the screw 80 are two spacers 27 visible, which together form a rectangular shaped, rounded corners having contour, which is dimensioned such that they as shown by the second passage opening 52 of the attachment 50 can be inserted. It can be seen, however, that the described contour does not pass through the first passage opening due to its shape and dimensions 42 of the supporting part 40 can be inserted. Thus, the support part 40 a plug-limiting stop available. The spacers 27 are in their for contacting the attachment 50 or the supporting part 40 furnished surfaces at least partially perpendicular to the longitudinal axis of the male part 20 and thus aligned parallel to the image plane.

3 shows the arrangement 2 after rotation of the male part 20 along the direction of rotation 62 , It can be seen that the spacers 27 on both sides of the second passage opening 52 behind material of the attachment 50 which the second passage opening 52 form, are entangled and thus in each case form an undercut. Thus, the plug is 20 the fastening device 10 against pulling out of the second passage opening 52 secured. In addition, it can be seen that the spacers 27 in the position shown between the support member 40 and the attachment 50 are arranged and realize in this way a distance between these two parts.

In addition, the fastening device 10 two in the 2 and 3 Not shown locking elements for forming an undercut at the first passage opening 42 forming material of the supporting part 40 on. These form analogously to the common contour of the spacer elements 27 together a substantially rectangular shaped contour with rounded corners, which, however, smaller dimensions than the contour of the spacers 27 having. The locking elements have respective upper sides, which is aligned at right angles to the longitudinal axis. Thus, the locking elements through the first passage opening 42 of the supporting part 40 , compare 1 , are inserted through, and formed by the described rotation of the male part 20 along the direction of rotation 62 the undercuts on the supporting part 40 out.

4 shows the in 2 indicated section B - B , so one through the longitudinal axis 46 of the plug-in part 20 extending section through the fastening device according to the invention 10 , the supporting part 40 as well as the attachment 50 after inserting the plug-in part 20 along the insertion direction 60 but before the turn.

It can be seen that the first passage opening 42 of the supporting part 40 in the section shown has a smaller width than the second passage opening 52 of the attachment 50 , Thus, the spacers are 27 on the surface of the supporting part 40 on and prevent too deep insertion of the plug 20 , The blocking elements 22 are on the other hand at the height of the underside of the support member 40 so that they can be twisted behind it by turning.

It turns out that only on the in 4 shown right side of the plug 20 the support element 27 as well as the blocking element 22 are visible. On the left side of the plug-in part 20 is shown in the sectional plane a smooth surface, wherein the spacer element 27 and the blocking element 22 are indicated by the dotted lines shown hidden edges, which are analogous to the corresponding elements on the right side executed. In other words, the fastening device shown here 10 one with respect to the longitudinal axis 64 of the plug-in part 20 twofold rotationally symmetric body, which, however, has no axis symmetry.

It turns out that between spacer element 27 and blocking element 22 a gap 29 is arranged. This tapers along in 3 shown direction of rotation in a finely graduated manner, so that the first through hole 42 forming material of the supporting part 40 upon rotation of the male part 20 the spacer element 27 and the blocking element 22 contacted and secured in this way against further rotation. Thus, the support member 40 also have a thickness other than the thickness shown here and yet by means of the fastening device according to the invention with an attachment 50 be connected while maintaining a distance.

Below the barrier element 22 there is a recess 26 , which primarily serves the saving of material. On the longitudinal axis 64 is also a screw holder 85 shown for receiving a screw, not shown here. Between support part 40 and attachment 50 only a minimum distance is shown, wherein the described rotation along the direction of rotation 62 causes an increase in the distance between the two parts. This is in 5 shown which the cut A - A out 3 , so after turning shows.

It is in 5 it can be seen that the spacer element 27 a distance A between the support part 40 and attachment 50 manufactures. The blocking element 22 is under training of the undercut 24 behind the supporting part 40 entangles and realized in this way a positive connection between the plug 20 and the supporting part 40 contrary to the insertion direction. The second passage opening of the attachment 50 is not cut in the illustration shown here. The longitudinal axis 64 is not in the section plane in this illustration and is shown merely to clarify its position.

The already in relation to 4 described rotationally symmetrical structure of the fastening device 10 is in the schematic perspective view of 6 shown. Reference is made to the relevant part of the description. Again, form the spacer element 27 and the blocking element 22 between each other a tapered along the direction of rotation gap 29 off and it is below the barrier element 22 a recess 26 arranged. The substantially V-shaped contour of the male part 20 makes insertion easier.

Furthermore, it turns out that the screw 80 a commercial screw, which along the longitudinal axis in the male part 20 is arranged. It is fixed in such a way that in a first phase of rotation, the screw on the 80 transmitted rotational movement, such as a cordless screwdriver, to a common movement of plug 20 and screw 80 leads, causing the blocking element 22 behind the supporting part 40 is entangled. After contacting the space in the gap 29 located portion of the support member 40 with the blocking element 22 and the support element 27 can the plug 20 not be rotated further, whereupon further rotation of the screw 80 in a second phase of rotation, the screw 80 in the plug-in part 20 is screwed into it. This reduces the distance between the head 82 the screw 80 and the head 82 facing surface of the spacer element 27 of the plug-in part 20 , which intervenes, here not shown attachment to the plug 20 is screwed on.

7 shows a sectional view perpendicular to the longitudinal axis 64 a further embodiment of the fastening device according to the invention 10 along a through the blocking elements 22 extending cutting plane. It is at the fastening device 10 to a two-part embodiment, which next to the plug 20 a frame part 30 having. In this schematic representation, neither the support member nor the attachment is shown.

The blocking elements 22 are on a first plate-shaped element 23 arranged, which runs parallel to the cutting plane. In the center of gravity of the first plate-shaped element 23 is the screw holder 85 to the arrangement of the screw shown.

The frame part 30 is based on a circumferential frame sleeve 33 as well as two on the frame sleeve 33 shown fixed and arranged at opposite corners arranged triangular frame members. On the frame part 30 is the first plate-shaped element as a part of the male part 20 rotatably mounted about the longitudinal axis. The first plate-shaped element 23 has triangular recesses in the area of the triangular frame elements. The frame sleeve 33 provides a variety of investment points, namely a circumferential contact surface 36 for engagement with the inner wall of the first passage opening 42 of the supporting part 40 to disposal. In this way, in the inserted state of the fastening device 10 in the first passage opening 42 a rotation of the frame part 30 around the longitudinal axis of the male part 20 blocked. In addition, takes place on the wall of the first through hole 42 during the rotation of the male part no movement takes place, so that the rotation of the male part 20 is relieved.

8th shows the fastening device 10 out 7 with the insert rotated 90 ° clockwise 20 , This is due to the 90 ° rotated representation of the first plate-shaped element 23 with the two blocking elements 22 seen. It turns out that the triangular frame elements as a stop element 34 are configured and only a small distance between them and the rotated long side surfaces of the first plate-shaped element 23 consists. Another rotation of the first plate-shaped element 23 and thus the blocking elements 22 clockwise is thus possible only by a small angular range of a few degrees before the first plate-shaped element 23 on the stop element 34 is applied and in this way a beyond this angular position beyond rotation of the male part 20 blocked.

The representations of the 9 and 10 are analogous to those of 7 and 8th with the difference that instead of by the first plate-shaped element 23 arranged locking elements 22 extending cutting plane A - A out 11 now a parallel to this running cutting plane BB 11 which is shown by the on a second plate-shaped element 28 arranged spacers 27 runs. The second plate-shaped element 28 has larger dimensions than the first plate-shaped element 23 from the 7 and 8th in order to be so in the insertion of the first through hole 42 forming material of the supporting part 40 to be held.

It also has recesses which are located in the corners frame members of the frame part 30 correspond. As well as for the first plate-shaped element 23 in 8th The triangular frame elements can be used as a stop element 34 on the second plate-shaped element 28 abut and in this way a further rotation of the male part 20 prevent. In addition to what is shown here could, for example in the field of triangular frame members, on the frame part 30 arranged clamping devices for non-positive and / or positive connection of the frame part 30 with the second passage opening 52 be arranged forming material.

Analogous to the representation of the 4 is in 11 a section through a in a first passage opening 42 a supporting part 40 inserted fastening device according to the invention 10 shown before their rotation. The attachment 50 is not shown here for clarity.

In addition to what has already been described, it can be seen that the two frame elements arranged in opposite corners are in the lower region of the fastening device 10 in a diagonal ironing structure 32 connected to each other. Likewise shows 11 again the longitudinal axis 64 the fastening device 10 as well as the screw holder 85 , The contact surface 36 of the frame part 30 lies on the inner wall 53 the first through hole 42 at.

LIST OF REFERENCE NUMBERS

fastening device 10 distance A plug 20 blocking element 22 First plate-shaped element 23 undercut 24 recess 26 spacer 27 Second plate-shaped element 28 gap 29 frame part 30 Ironing structure 32 frame sleeve 33 stop element 34 contact surface 36 supporting part 40 First passage opening 42 attachment 50 Second passage 52 inner wall 53 insertion 60 direction of rotation 62 longitudinal axis 64 screw 80 head 82 screw receptacle 85

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012015379 A1 [0004]
• DE 102011010637 A1 [0006]
• DE 102004035009 A1 [0007]
• DE 102007010690 A1 [0008]
• DE 102010024419 A1 [0009]

Claims (10)

Fastening device (10) for fastening an attachment (50) to a support member (40), in particular a wheel housing shell on a body component, while maintaining a distance (A) between attachment (50) and support member (40) comprising a plug (20) for Inserting into a first through-opening (42) of the support part (40) along a longitudinal axis (64) of the male part (20), the male part (20) comprising: - at least one locking element (22) for forming an undercut (24), which the the first through-opening (42) forming material engages behind, in order to produce a positive connection between the male member (20) and the support member (40), and - at least one spacer element (27) for positioning on the said locking element (22) opposite side of the support member (40 ) for the purpose of realizing the distance (A) between attachment (50) and support member (40), wherein the spacer element (27) at least partially along a direction perpendicular to the longitudinal axis e (64) of the plug-in part (20) aligned first plane extends, characterized in that the blocking element (22) extends at least partially along a second plane aligned parallel to the first plane, that it by means of rotation of the male member (20) about the longitudinal axis (64) for the formation of the undercut (24) behind the support member (40) is verschränkbar. Fastening device (10) for fastening an attachment (50) to a support member (40) according to Claim 1 , characterized in that the fastening device (10) in the male member (20) arranged or arrangeable screw (80) for rotating the male member (20) about the longitudinal axis (64) for the purpose of forming the undercut (24) and / or for positive connection the attachment part (50) with the insertion part (20) between the spacer element (27) and a head (82) of the screw (80). Fastening device (10) for fastening an attachment (50) to a support part (40) according to one of the preceding claims, characterized in that between blocking element (22) and spacer element (27) along a direction of rotation (62) of the insertion part (20) is arranged so that the rotation of the male member (20) along the direction of rotation (62) contacting a portion of the support member (40) in the space (29) with a portion of the male member (20), in particular with the blocking element (22) and / or the spacer element (27), causes and thus the male member (20) is secured against over-rotation. Fastening device (10) for fastening an attachment (50) on a support member (40) according to any one of the preceding claims, characterized in that the fastening means (10) rotatably connected to the male member (20) frame member (30) for insertion into the first Through opening (42) of the support member (40) and / or in a second passage opening (52) of the attachment (50) along the longitudinal axis (64) of the male part (20), wherein the frame part (30) at least one contact point, in particular at least one Has abutment on an inner wall (53) of the first or second passage opening (42, 52), so that in the inserted state in the first or second passage opening (42, 52) of the rotational degree of freedom of the frame part (30) is locked about the longitudinal axis (64) of the male part (20). Fastening device (10) for fastening an attachment (50) to a support member (40) according to Claim 4 , characterized in that the frame part (30) at least one stop element (34) for abutment of a portion of the male member (20), in particular the locking element (22) and / or the spacer element (27), in a defined angular position of the male member (20) with respect to the frame part (30), so that beyond the defined angular position beyond rotation of the male part (20) can be blocked. Fastening device (10) for fastening an attachment (50) on a support part (40) according to one of Claims 4 and 5 , characterized in that the fastening device (10) has at least one on the frame part (30) arranged clamping device for non-positive and / or positive connection of the frame part (30) with the first or second through hole (42, 52) forming material. Component system comprising a fastening device (10) according to one of Claims 2 - 6 , a support part (40) and an attachment (50), wherein by means of the locking element (22) a positive connection between the support part (40) and the insertion part (20) is realized, by means of the insertion part (20) a distance (A) between Support member (40) and attachment (50) is realized and by means of the screw (80) a positive connection between the attachment (50) and the insertion part (20) is realized. Method for fastening an attachment (50) to a support member (40), in particular a wheel housing shell on a body component, while maintaining a distance (A) between the attachment (50) and support member (40), wherein - a support member (40) with a first through-opening (42) and an attachment (50) with a second Through hole (52) are positioned relative to each other, - an insertion part (20) of a fastening device (10) according to one of Claims 1 - 6 a rotation of the insertion part (20) about its longitudinal axis (64) takes place, so that the blocking element (22) realizes an undercut (24) which forms the first passage opening (42) engages behind the forming material, and - by means of a screw (80) a positive connection between the attachment (50) and the insertion part (20) is realized. Method for fastening an attachment (50) to a support part (40) according to Claim 8 characterized in that the male member (20) is positioned in the second through hole (52) of the attachment (50) prior to relative positioning of the attachment (50) and the support member (40). Motor vehicle, in particular passenger car, characterized in that this at least one fastening device (10) according to one of Claims 1 - 6 , at least one component system according to Claim 7 and / or at least one with the method according to one of Claims 8 and 9 Having attached to a support member (40) attachment (50).

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