DE102014225219A1 - Fastening device and component arrangement - Google Patents

Abstract

The invention relates to a fastening device for fastening a first component (40) to a second component (41), wherein the first component (40) is arranged on the second component (41). The fastening device comprises: - a first support (2) having a first bearing surface (3) provided to be inserted between the first component (40) and the second component (41) and a first sleeve (4) provided to be introduced into a bore (42) in the second component (41), wherein an inner surface (5) of the first sleeve (4) has at least one first recess (6) and - a first Hinterhakungselement (7) with a hollow cylindrical base body (8 ), which at least partially has an internal thread (10) on its inner circumference (9) and at least one first elastic wing element (12) on its outer circumference (9a), wherein the first wing element (12) for contacting one of the first bearing surface (3) is formed on the opposite side (43) of the second component (41), wherein on the outer circumference (9a) of the first Hinterhakungselements (7) at least a first elevation (13) is formed, which is arranged with the first Recess (6) in the inner surface (5) of the first sleeve (4) to engage in order to connect the first support (2) in a form-fitting manner with the first Hinterhakungselement (7).

Description

The present invention relates to a fastening device for permanently connecting components as well as to a component arrangement having at least two components which are connected to one another such that relative movements between the components are prevented.

Various fastening devices are known from the prior art. When connecting plastic-based components, such. As carbon fiber composite components, for the local introduction of forces in the components different in the plastic integrable fasteners, so-called inserts provided. These are installed with a high preload force to avoid relative movement between the components. Due to the high creep of the plastics, however, constant clamping can not be achieved permanently with conventional fastening devices. The plastic components are subject to stress relaxation due to creep, allowing for relative movement between the connected components.

Based on this prior art, it is an object of the present invention to provide a self-tensioning fastening device that allows a good transmission of high forces or moments and permanently prevents relative movement between the connected components. Furthermore, it is an object of the present invention to provide a component arrangement in which the components are permanently connected to one another in a secure and highly loadable manner and a service effort for the correction of the pretensioning forces is reduced.

The object is achieved in a fastening device for fastening a first component to a second component, wherein the first component is arranged on the second component according to the invention by a structure having at least two functional sections. The structure of the fastening device comprises a first support as the first functional section and a first rear hooking element as the second functional section. The functional sections are connectable to each other. In detail, the first support comprises a first bearing surface, in particular for forming a flange, and is intended to be introduced between the first component and the second component. The bearing surface is designed such that on the one hand it creates a connection between the first component and the second component and, on the other hand, permits a translationally stable contact on an upper side of the second component. The first edition advantageously has a hat-like profile, so that the first bearing surface can come to rest over a large area on an upper side of the second component. As a result, pressure forces can be introduced surface into the component assembly. Furthermore, the first support comprises a first sleeve, which is intended to be introduced into a bore provided in the second component. As a result, the support is additionally supported and translationally safe and stable against tilting movements connected to the components. The first edition is added according to the invention in the bore in the second component and on the top of the second component. As explained below, an inner surface of the first sleeve for connecting the first support to the second functional portion of the fastening device according to the invention, the first Hinterhakungselement, at least a first recess.

The first Hinterhakungselement has a hollow cylindrical body whose inner diameter is advantageously as large as a diameter of the first sleeve. The base body has at least in sections on its inner circumference an internal thread which can be brought into engagement with a screw thread. At least one first elastic wing element is arranged on the outer circumference of the rear hook element, which is designed to contact an underside of the second component facing away from the first bearing surface. In particular, the rear hook element can engage behind the second component by its arrangement with the wing element and exert a pulling action on the second component in the direction of the first component arranged above it. A permanent pulling effect is obtained by forming on the outer circumference of the first rear hooking element at least one first protrusion which is adapted to engage the first recess in the inner surface of the first sleeve. The first edition and the first Hinterhakungselement are thereby form-fitting connectable. Slipping of the second component is thereby effectively prevented.

If now a screw is guided from the side of the first component through a bore in the first component and the sleeve in the bore in the second component, then the screw engages with the internal thread in the hollow cylindrical basic body of the rear hooking element. Thus, the Hinterhakungselement is pulled in the direction of arrangement of the components in the direction of the first edition. At the same time, the first wing element comes into contact with the underside of the second component facing away from the first bearing. Due to its elastic character and in particular by its advantageously arcuate shape, the wing element acts as a kind of spring whose spring force adds the components in the arrangement direction to each other and slipping in the negative arrangement direction of the Prevents components. This effect is enhanced by the fact that the first Hinterhakungselement is positively connected to the first edition and the first bearing surface is arranged on the top of the second component between the first component and the second component, that slipping or slipping of the support by the second component is prevented.

The functional components of the fastening device according to the invention, namely the first support and the first rear hook element, act synergistically together. In this case, a permanent connection between the first and the second component is achieved by a plurality of mechanisms, namely a bearing, a deposition of loads on both components to be joined and the threaded engagement and the positive connection of the first support and the first Hinterhakungselements, so that high forces and Moments in a component assembly with the fastening device according to the invention can be introduced. Deformations or shifts of the components against each other are prevented. The fastening device is in particular self-tensioning due to the elastic wing element arranged on the first rear hook element. This has proved to be particularly advantageous, especially in the connection of plastic-based components, since relative movement between the components can thus be effectively prevented even after a long time, even at high force introduction or high acting moments, due to relaxation effects. By appropriate design of the elastic wing member also a scaling of the transferable to the component assembly forces and moments is possible. Furthermore, component tolerances can be compensated in this way. By specific arrangement and design of the intended for positive locking first survey and first depression mounting positions can also be defined, which allows a reproducible arrangement of the fastening device according to the invention. According to the invention can be realized by connecting components using the fastening device according to the invention a defined, continuous and large-scale bias and maintained over a long time.

The dependent claims contain advantageous developments and refinements of the invention.

An advantageous development of the fastening device according to the invention provides that the first support is connected to the first Hinterhakungselement. The fastening device is thus formed in one piece and can be performed very easily from one side of the component assembly forth. This is particularly advantageous in component arrangements in which the second component has a hard to reach underside. As a particularly suitable for connecting the first edition with the first Hinterhakungselement a predetermined breaking point or transition fit have been found. The predetermined breaking point is released as soon as the pulling effect on the Hinterhakungselement by the introduced screw is large enough.

Further advantageously, the first bearing surface has a first surface provided for contact with the first component and a second surface provided for contact with the second component. At least one of the surfaces has a friction-increasing surface structure which can be obtained, for example, by roughening the surface. The friction-increasing surface structure is not limited in detail. As a result, a higher lateral absorption of forces and moments can be achieved. Advantageously, the friction-increasing surface structure is designed as a micro-toothing, for example in the form of pyramidal structures. Micro gears generate a positive connection with the component to be contacted, wherein the transverse acceptance of forces and moments can be further improved by the forming positive locking, that the micro-toothing is pressed into the component to be contacted.

As an alternative or in addition to a friction-increasing surface structure, at least one of the surfaces may have a surface structure which is designed to form a positive connection with the component provided for contact.

The cross-introduction capability of the fastening device according to the invention can also be improved by arranging a friction-increasing element on the first surface of the first bearing surface and / or on the second surface of the first bearing surface. An exemplary friction-enhancing element is in the form of a washer.

If an attachment of a third component to the arrangement of the first component and the second component is provided, the fastening device according to the invention is advantageously characterized in that provided in the arrangement direction of the components, ie in the longitudinal direction (XX) of the fastening device, a second support and a second Hinterhakungselement are. The structures of the second support and the second Hinterhakungselements are similar to the structures of the first edition and the first Hinterhakungselements. Thus, the second support comprises a second bearing surface, which is designed to rest on the third component, and a second sleeve, which is provided in a bore in the third Component to be introduced. The second sleeve in turn has at least one second recess in an inner surface. The second Hinterhakungselement has a hollow cylindrical body having at least partially an internal thread for receiving a screw thread on its inner circumference and at least a second elastic wing member on its outer periphery. The second wing element is designed such that it can contact an underside of the third component facing away from the second bearing surface and, in particular, can engage behind the underside of the third component. On the outer circumference of the second Hinterhakungselements also at least a second elevation is formed, which is adapted to engage with the second recess in the inner surface of the second sleeve to connect the second support positively with the second Hinterhakungselement. When three components are to be connected and a second component is arranged between a first component and a third component, the first support and the first hooking element connecting the first component and the second component as described above, the second support and the second behind-hooking element are therein Order provided so that the second edition adjacent to the first Hinterhakungselement can be arranged. Substantially redundant effects are also achieved by the essentially redundant structures of the supports and rear hook elements, and a third component with a self-tightening first component and second component can also be joined in a self-tightening manner. Relative movements between both the first component and the second component as well as between the second component and the third component are effectively prevented permanently. A retightening is not necessary.

Advantageously, an outer diameter of the second support and the second Hinterhakungselements is at most as large as an outer diameter of the first sleeve of the first edition. The outer diameter of the second support and the second Hinterhakungselements be determined at the widest point of the widest element. Thus, the fastening device can be guided from one side through the components to be joined and joined with them. This facilitates an arrangement of the fastening device according to the invention from one side in hard-to-reach component arrangements.

To increase the self-tensioning effect of the fastening device according to the invention is also advantageously provided that the first elastic wing element of the first Hinterhakungselements and / or the second wing element of the second Hinterhakungselements has a progressive spring characteristic.

Also according to the invention, a component arrangement is described. The component arrangement comprises a first component and a second component. The components are arranged one above the other and connected to each other by a fastening device as described above. In particular, the connection is provided such that the first support surface of the first support is arranged between the first component and the second component. The first component and the second component are thus connected to each other via the first bearing surface and at the same time stabilized in their arrangement one above the other or on each other. The first sleeve of the first edition is introduced into a bore in the second component and prevents tilting or tilting of the second component as well as tilting or slipping of the first support itself. The first elastic wing element formed in the first rear hook element contacts an underside facing away from the first support surface of the second component and engages behind this particular. At least the first protrusion provided on the outer circumference of the first rear hooking element, which is formed between the first elastic wing element and the first sleeve of the first support, engages in the first recess formed in the inner surface of the first sleeve of the first support. As a result, the first support and the first Hinterhakungselement are positively connected to each other. To stabilize the assembly, a screw is passed through a bore in the first component and the bore in the second component, and more specifically through the first sleeve. The screw thread of the screw is engaged with the inner circumference of the hollow cylindrical basic body of the first rear hooking element at least partially provided internal thread. The component assembly can thus absorb tensile forces and also compressive forces and lateral forces. The component arrangement is equipped with a defined by the geometry of the fastening device tailored to the components continuous bias, which permanently prevents relative movement between the connected components even with creep phenomena of the components, especially in plastic-based components. The component assembly according to the invention is thus characterized over a long period by a high stability and constant arrangement of the components. A retightening of the component assembly is not required, which can be saved in maintenance-related component assemblies service dates.

The advantages, advantageous effects and developments described for the fastening device according to the invention are also applicable to the component arrangement according to the invention.

According to an advantageous embodiment of the component assembly according to the invention comprises this is a third component, which is arranged adjacent to the second component and connected to the arrangement of the first component and the second component. Put simply, the stack arrangement of the components is: first component - second component - third component. For this purpose, a second support is provided with a second bearing surface, which is arranged on the third component such that the second bearing surface comes to lie on an adjacent to the second component top of the third component. A second sleeve of the second support is inserted into a bore in the third component and stabilizes the second support against slipping out of the third component. Further, a second Hinterhakungselement is provided which has at least a second elastic wing member, wherein the second elastic wing member contacts a remote from the second support surface underside of the third component and thus exerts a pulling action on the third component in the direction of the second component and the first component. On the outer circumference of the second Hinterhakungselements at least a second elevation is formed between the second elastic wing member and the second sleeve of the second support, which engages in a formed in the inner surface of the second sleeve of the second edition second recess. Thus, the second edition and the second Hinterhakungselement are positively connected to each other.

The screw, which already passes through the first support and the first Hinterhakungselement is guided through a corresponding hole in the third component. The screw thread of the screw engages with an inner thread provided at least in sections on the inner circumference of the hollow cylindrical main body of the second rear hook element. In this embodiment of the invention, the effects already achieved by the first edition and the first Hinterhakungselement be doubled. In order for a component assembly of three components permanently stable joined and relative movements between the components, for example, triggered by Kriechphänomene effectively prevented. The component assembly is also designed self-tensioning, so that maintenance can be reduced.

A further advantageous development provides that the second component and the third component are materially interconnected, since thus a particularly high degree of stabilization of the component arrangement can be achieved, in particular a stabilization against acting torsional forces. Further advantageously, the second component and the first component form a hollow profile.

Since the self-tightening effect of the fastening device according to the invention is particularly advantageous in plastic-containing components, by which an effective weight saving in the component arrangement can be achieved, at least one component of the component assembly comprises a plastic material. These include all common thermoplastic and thermosetting plastics as well as fiber composites. Particularly advantageous in the light of further weight reduction, all components comprise a plastic material.

Further details, features and advantages of the invention will become apparent from the following description and the figures. Show it:

1 a sectional view of a fastening device according to a first embodiment of the invention,

2 a sectional view of a fastening device according to a second embodiment of the invention,

3 a first detail of the fastening device 2 .

4 a second detail of the fastening device 2 .

5 a sectional view of a fastening device according to a third embodiment of the invention,

6 a sectional view of a component assembly according to a first embodiment of the invention in a partially joined state,

7 a sectional view of the component assembly 6 in mated condition and

8th a sectional view of a component assembly according to a second embodiment of the invention in a partially joined state.

The present invention will be explained in detail with reference to exemplary embodiments. In the figures, only the interest here elements of the fastening device according to the invention or the component assembly according to the invention are shown, all other elements are omitted for clarity.

In detail shows 1 a sectional view of a fastening device 1 according to a first embodiment of the invention. The fastening device 1 includes two separate functional elements, a first edition 2 and a first rear hook element 7 , and is suitable for connecting two components, a first component and a second component, wherein the first component in the longitudinal direction X- X of the fastening device 1 above, and thus on the second component, is arranged.

The first edition 2 has a first bearing surface 3 with a top 3b and a bottom 3a on, with the bottom 3a the bearing surface 3 is intended to rest on a second component.

The first edition 2 also has a first sleeve 4 on, at right angles to the first bearing surface 3 is aligned. The first sleeve 4 is characterized by a cavity 4a out, so the edition 2 essentially has a hat-like profile. On an inner surface 5 the first sleeve 4 is a circumferential first well 6 provided, which may be formed for example in the form of a hook-shaped recess.

The rear hook element 7 has a hollow cylindrical body 8th on which a first wing element 12 is arranged, which is in the form of an approximately U-shaped hook. The wing element 12 on an outer circumference 9a the first Hinterhakungselements 7 is arranged, is provided for contacting and in particular for engaging behind a second component and is elastically formed so that it can create a flat surface on an underside of the second component. This takes the curvature of the first wing element 12 from. At one of the first wing element 12 opposite side of the first Hinterhakungselements 7 is a first survey 13 , For example, in the form of a snap hook, which is adapted to engage with the first recess 6 in the inner surface 5 the first sleeve 4 is scheduled for the first edition 2 and the first rear hook element 7 form-fit with each other.

On an inner circumference 9 the first Hinterhakungselements 7 is in sections an internal thread 10 intended. The internal thread 10 can engage with a screw thread.

The first edition 2 and the first rear hook element 7 can be manufactured and stored separately. In the in 1 shown arrangement in the longitudinal direction XX of the fastening device 1 are the first edition 2 and the first rear hook element 7 set up for fastening a first component to a second component. The fastening device 1 has a high functionality with a simple structure.

2 shows a fastening device 11 according to a second embodiment of the invention. The fastening device 11 differs from the fastening device 1 out 1 in that it is formed in one piece. The first edition 2 and the first rear hook element 7 are connected together in the uninstalled state, for example by a predetermined breaking point shown here 14 , During the installation of the fastening device 11 breaks the breaking point 14 so that the first rear hook element 7 in the longitudinal direction XX of the fastening device 11 towards the first edition 2 is displaceable or drawable.

3 shows the first detail A of the edition 2 out 2 , The first contact surface 3 here has a first surface 15 and a second surface 16 on. The first surface 15 and the second surface 16 are characterized by a friction-increasing surface structure 17 from, which allows a more stable contacting of the first component and the second component and thus a translation-inhibited component arrangement. The friction-increasing surface structure 17 may be the first surface 15 and / or the second surface 16 completely cover or, as shown here, these cover only in sections. Preferably, the friction-increasing surface structure 17 formed in the form of a micro-toothing z. B. can form a positive connection with a component to be contacted.

4 shows the second detail B of the edition 2 out 2 , The second detail B shows a further surface area of the first surface 15 that is a friction-enhancing element 18 having. The friction-enhancing element 18 may be formed in the form of a washer or provided with a roughened surface. Also the friction-enhancing element 18 improves a permanent contact of the component arranged thereon.

5 shows a fastening device 111 according to a third embodiment in section. In addition to a like in 2 exemplified first edition 2 and a first rear hook element 7 has the fastening device 111 a second edition 19 with a second support surface 21 on. The second bearing surface 21 has a base 21a and a top 21b ,

The bottom 21a the second bearing surface 21 is designed to rest on a surface of a third component. The flat shape of the second bearing surface 21 ensures a stable connection with the third component, so that high forces and moments can be introduced into the component without the second edition 19 subject to deformation.

The second edition 19 also has a second sleeve 22 with an inner surface 30 on, being on the inside surface 30 the second sleeve 22 a second recess 23 is provided.

With the second edition 19 is about a breaking point 14 a second Hinterhakungselement 20 connected. The second Hinterhakungselement 20 is similar to the first rear hook element 7 formed and has at its outer periphery 28 a second elastic and approximately U-shaped wing element 27 on. The second wing element 27 is designed to be arranged on an underside of a third component and spread there.

At the inner circumference 25 the second Hinterhakungselements 20 is an internal thread 26 formed, like the internal thread 10 the first Hinterhakungselements 7 is formed and can be brought into engagement with a screw.

An outer diameter D2 of the second edition 19 and the second rear hooking element 20 is advantageously at most as large as an outer diameter D1 of the first sleeve 4 the first edition 3 , Here, the reference point for the outer diameter D2 is the outer diameter of the element with the larger diameter of the two elements: second support 19 and second Hinterhakungselement 20 , In other words, the outer diameter D2 becomes at the widest point of the second edition 19 and the second rear hooking element 20 certainly.

In the 5 shown fastening device 111 is made in two parts, with the first edition 2 and the first rear hook element 7 one unit and the second edition 19 and the second rear hooking element 20 form a unit. After installation of the fastening device 111 With three components, a permanently stable component arrangement is obtained in which relative movements between the arranged and joined components are effectively prevented.

6 is a sectional view of a component assembly 100 according to a first embodiment of the invention in partially joined state. In detail, the component arrangement comprises a fastening device 11 like out 2 and a first component 40 and a second component 41 , The first edition 2 is between the first component 40 and the second component 41 arranged so that a bottom 3a the first contact surface 3 rests on a surface of a second component and an upper side 3b the first contact surface 3 a bottom of the first component 40 contacted.

The first edition 2 includes a first sleeve 4 in a hole 42 in the second component 41 is introduced and the first edition 3 in the second component 41 anchored.

With the first edition 2 is about a breaking point 14 a first Hinterhakungselement 7 connected.

A screw 44 is through a hole 45 in the first component 40 and the hole 42 in the second component 41 guided. The thread 46 the screw 44 is with the internal thread 10 the first Hinterhakungselements 7 engaged. In this partially installed state, the component assembly 100 not yet completely fixed in its structure.

7 shows the component arrangement 100 out 6 in fully installed condition. This is obtained as follows: When joining the first component 40 will the screw 44 through the hole 45 in the first component 40 and the second hole 42 in the second component 41 stuck and engages the internal thread 10 the first Hinterhakungselements 7 , First, when screwing in the screw 44 no screw bias generated. However, as soon as the screw head 47 on the first component 40 comes to rest, acts on the first Hinterhakungselement 7 a tensile force in the positive z-direction. The first behind hook element 7 thereby results in a relative movement in the direction of the first component 40 in positive z-direction. The screw 44 acts as thread operation. In this case, the first elastic wing element springs 12 the first Hinterhakungselements 7 out until it is essentially completely on the bottom 43 of the second component 41 to come to rest. This generates a form fit. At the same time, the second component undergoes 41 a continuous tension. About the positive fit are primarily on the screw 44 introduced tensile forces in a positive z-direction. At the same time, the first survey moves 13 on the outer circumference of the first Hinterhakungselements 7 between the first edition 2 and the first rear hook element 7 with in positive z-direction. The first survey 13 shapes after reaching the first well 6 in the inner surface 5 the first sleeve 4 a positive connection. As a result, the achievement of a defined position and thus a defined preload can be set reproducibly in the joining process. In addition, compressive forces in the negative z-direction can be transmitted and decentralized via the positive connection.

The component arrangement 100 is thus characterized by the different stabilization mechanisms: bearing, threaded engagement, positive connection and flange, from, which permanently prevent a relative movement between the components.

8th shows a component arrangement 200 according to a second embodiment of the invention. Here are a first component 40 , a second component 41 and a third component 50 by a fastening device, as for example in 5 shown is joined.

Regarding the joining process of the first component 40 and the second component 41 will apply to the execution 7 directed.

The third component 50 is added as follows:
A second edition 19 becomes on the third component 50 arranged such that a second bearing surface 21 the second edition 19 on a second edition 19 adjacent upper side 51 of the third component 50 to come to rest. The second edition 19 further includes a second sleeve 22 in a hole 52 of the third component 50 is introduced.

A second rear hook element 20 has a hollow cylindrical body 24 and is on one of a base 53 of the third component 50 facing side arranged such that at least a second elastic wing element 27 is set up, the second bearing surface 21 the second edition 19 opposite bottom 53 of the third component 50 to contact.

At the outer circumference 28 the second Hinterhakungselements 20 is between the second elastic wing element 27 and the second sleeve 22 the second edition 19 a second survey 29 trained, which is provided in one in the inner surface 30 the second sleeve 22 the second edition 19 trained second recess 23 intervene. Through this intervention, the second edition 19 and the second rear hooking element 20 be positively connected.

Again, the screw 44 shown in addition to the hole now 45 in the first component 40 and the hole 42 in the second component 41 also through a hole 52 in the third component 50 is guided and their screw thread 46 with one on the inner circumference 25 of the hollow cylindrical body 24 the second Hinterhakungselements 20 at least partially provided internal thread 26 engaged.

In other words, when joining the third component 50 the screw 44 additionally through the hole 52 in the third component 50 guided and engages in the internal thread 26 of the far rear hook element 20 , This is again first when screwing the screw 44 no screw preload on the third component 50 generated. In the course of screwing the screw 44 However, because the screw head 47 on the first component 40 rests, even on the second Hinterhakungselement 20 a tensile force exerted in the positive z-direction. The second Hinterhakungselement 20 leads thereby as well as the first Hinterhakungselement 7 a relative movement in the direction of the second component 41 in positive z-direction. The screw 44 continues to act as threading. In this case, the second elastic wing element springs 27 the second Hinterhakungselements 20 out until it is essentially completely on the bottom 53 of the third component 50 to come to rest. As a result, between the second wing element 27 and the third component 50 generates a form fit. At the same time, the third component undergoes 50 a continuous tension. At the same time, the second survey moves 29 on the outer circumference 28 the second Hinterhakungselements 20 between the second edition 19 and the second rear hooking element 20 with in positive z-direction. The second survey 29 shapes after reaching the second recess 23 in the inner surface 30 the second sleeve 22 a positive connection. As a result, in the joining process of the third component 50 the achievement of a defined position and thus a defined bias can be set reproducibly. In addition, compressive forces in the negative z-direction can be transmitted and decentralized via the positive connection.

The component arrangement 200 Thus, it is also characterized by the following stabilization mechanisms: Bearing indentation, thread engagement, positive connection, flange arrangement, which permanently prevent a relative movement between the three arranged and joined components.

The foregoing description of the present invention is for illustrative purposes only, and not for the purpose of limiting the invention. Various changes and modifications are possible within the scope of the invention without departing from the scope of the invention and its equivalents.

LIST OF REFERENCE NUMBERS

1

fastening device

2

first edition

3

first contact surface

3a

Bottom of the first bearing surface

3b

Top of the first bearing surface

4

first sleeve

4a

Cavity of the first sleeve

5

Inner surface of the first sleeve

6

first recess

7

first rear hook element

8th

hollow cylindrical body

9

Inner circumference of the hollow cylindrical body

9a

Outer circumference of the hollow cylindrical body

10

inner thread

11

fastening device

12

first elastic wing element

13

first survey

14

Breaking point

15

first surface of the first bearing surface

16

second surface of the first bearing surface

17

friction-increasing surface structure

18

friction-enhancing element

19

second edition

20

second Hinterhakungselement

21

second bearing surface

21a

Bottom of the first bearing surface

21b

Top of the first bearing surface

22

second sleeve

23

second recess

24

hollow cylindrical body

25

Inner circumference of the second Hinterhakungselements

26

inner thread

27

second elastic wing element

28

Outer circumference of the second Hinterhakungselements

29

second survey

30

Inner surface of the second sleeve

40

first component

41

second component

42

Bore in the second component

43

Bottom of the second component

44

screw

45

Bore in the first component

46

screw thread

47

screw head

50

third component

51

Top of the third component

52

Hole in the third component

53

Bottom of the third component

100

component arrangement

111

fastening device

200

component arrangement

Claims (12)

Fastening device for fastening a first component ( 40 ) on a second component ( 41 ), the first component ( 40 ) on the second component ( 41 ), comprising: - a first edition ( 2 ) with a first contact surface ( 3 ), which is provided between the first component ( 40 ) and the second component ( 41 ) and a first sleeve ( 4 ), which is provided in a bore ( 42 ) in the second component ( 41 ), wherein an inner surface ( 5 ) of the first sleeve ( 4 ) at least one first recess ( 6 ) and - a first Hinterhakungselement ( 7 ) with a hollow cylindrical basic body ( 8th ), which on its inner circumference ( 9 ) at least in sections an internal thread ( 10 ) and on its outer periphery ( 9a ) at least one first elastic wing element ( 12 ), wherein the first wing element ( 12 ) for contacting one of the first bearing surface ( 3 ) facing away from the bottom ( 43 ) of the second component ( 41 ) is formed, wherein on the outer circumference ( 9a ) of the first rear hook element ( 7 ) at least one initial survey ( 13 ), which is arranged with the first recess ( 6 ) in the inner surface ( 5 ) of the first sleeve ( 4 ) to engage the first edition ( 2 ) with the first Hinterhakungselement ( 7 ) connect to. Fastening device according to claim 1, characterized in that the first edition ( 2 ) with the first Hinterhakungselement ( 7 ), in particular by a predetermined breaking point ( 14 ) or a transitional fit. Fastening device according to claim 1 or 2, characterized in that the first bearing surface ( 3 ) one for contact with the first component ( 40 ) provided first surface ( 15 ) and one for contact with the second component ( 41 ) provided second surface ( 16 ), wherein at least one of the surfaces ( 15 . 16 ) a friction-increasing surface structure ( 17 ), in particular a micro-toothing has. Fastening device according to one of the preceding claims, characterized in that the first bearing surface ( 3 ) one for contact with the first component ( 40 ) provided first surface ( 15 ) and one for contact with the second component ( 41 ) provided second surface ( 16 ), wherein at least one of the surfaces ( 15 . 16 ) has a surface structure which is formed with the component provided with the surface structure ( 40 . 41 ) to make a positive connection. Fastening device according to one of the preceding claims, characterized in that the first bearing surface ( 3 ) one for contact with the first component ( 40 ) provided first surface ( 15 ) and one for contact with the second component ( 41 ) provided second surface ( 16 ), wherein on at least one of the two surfaces ( 15 . 16 ) a friction-enhancing element ( 18 ) is arranged. Fastening device according to one of the preceding claims, wherein in the longitudinal direction (XX) of the fastening device ( 1 . 11 ) - a second edition ( 19 ) with a second contact surface ( 21 ) and a second sleeve ( 22 ), which is provided in a bore ( 52 ) in a third component ( 50 ) and in an inner surface ( 30 ) at least one second recess ( 23 ) and - a second Hinterhakungselement ( 20 ) with a hollow cylindrical basic body ( 24 ), which on its inner circumference ( 25 ) at least in sections an internal thread ( 26 ) and on its outer periphery ( 28 ) at least one second elastic wing element ( 27 ), wherein the second wing element ( 27 ) for contacting one of the second Bearing surface ( 21 ) facing away from the bottom ( 53 ) of the third component ( 50 ) is formed, wherein on the outer circumference ( 28 ) of the second rear hook element ( 20 ) at least one second survey ( 29 ), which is arranged with the second recess ( 23 ) in the inner surface ( 30 ) of the second sleeve ( 22 ) to engage the second edition ( 19 ) with the second Hinterhakungselement ( 20 ), are provided in that order, the second edition ( 19 ) to the first hooking element ( 7 ) can be arranged adjacent. Fastening device according to claim 6, characterized in that an outer diameter (D2) of the second edition ( 19 ) and the second Hinterhakungselements ( 20 ) is at most as large as an outer diameter (D1) of the first sleeve ( 4 ) of the first edition ( 3 ). Fastening device according to one of the preceding claims, characterized in that the first elastic wing element ( 12 ) of the first rear hook element ( 7 ) and / or the second wing element ( 27 ) of the second rear hook element ( 20 ) has a progressive spring characteristic. Component arrangement comprising a first component ( 40 ) and a second component ( 41 ), which are arranged one above the other and by a fastening device ( 1 . 11 ) are connected according to one of the preceding claims, - wherein the first bearing surface ( 3 ) of the first edition ( 2 ) between the first component ( 40 ) and the second component ( 41 ) and the first sleeve ( 4 ) into the hole ( 42 ) in the second component ( 41 ), at least the first elastic wing element ( 12 ) of the first rear hook element ( 7 ) one of the first bearing surface ( 3 ) facing away from the bottom ( 43 ) of the second component ( 41 ), at least those on the outer periphery ( 11 ) of the first rear hook element ( 7 ) between the first elastic wing element ( 12 ) and the first sleeve ( 4 ) of the first edition ( 2 ) first survey ( 13 ) into the inner surface ( 5 ) of the first sleeve ( 4 ) of the first edition ( 3 ) formed first recess ( 6 ) intervenes to support the first edition ( 2 ) with the first Hinterhakungselement ( 7 ) and - whereby a screw ( 44 ) through a hole ( 45 ) in the first component ( 40 ) and the bore ( 42 ) in the second component ( 41 ) is guided whose screw thread ( 46 ) with the inner circumference ( 9 ) of the hollow cylindrical body ( 8th ) of the first rear hook element ( 7 ) at least partially provided internal thread ( 10 ) is engaged. Component arrangement according to Claim 9, characterized by a third component ( 50 ), the second component ( 41 ) is arranged adjacent, - wherein a second edition ( 19 ) on the third component ( 50 ) is arranged such that a second bearing surface ( 21 ) of the second edition ( 19 ) on one to the second component ( 41 ) adjacent upper side ( 51 ) of the third component ( 50 ) comes to rest and a second sleeve ( 22 ) of the second edition ( 19 ) into a hole ( 52 ) in the third component ( 50 ), - wherein a second Hinterhakungselement ( 20 ) with a hollow cylindrical basic body ( 24 ) is arranged, which at its outer periphery ( 28 ) at least one second elastic wing element ( 27 ), wherein the second elastic wing element ( 27 ) one of the second bearing surface ( 21 ) facing away from the bottom ( 53 ) of the third component ( 50 ), - at least one on the outer circumference ( 28 ) of the second rear hook element ( 20 ) between the second elastic wing element ( 27 ) and the second sleeve ( 22 ) of the second edition ( 19 ) second survey ( 29 ) into one in the inner surface ( 30 ) of the second sleeve ( 22 ) of the second edition ( 19 ) formed second recess ( 23 ), in order to support the second edition ( 19 ) with the second Hinterhakungselement ( 20 ) and - the screw ( 44 ) through a hole ( 52 ) in the third component ( 50 ), wherein the screw thread ( 46 ) of the screw ( 44 ) with one on the inner circumference ( 25 ) of the hollow cylindrical body ( 24 ) of the second rear hook element ( 20 ) at least partially provided internal thread ( 26 ) is engaged. Component arrangement according to claim 10, characterized in that the second component ( 41 ) and the third component ( 50 ) are materially interconnected, and in particular form a hollow profile. Component arrangement according to one of claims 9 to 11, characterized in that at least one component ( 40 . 41 . 50 ), preferably all components ( 40 . 41 . 50 ) comprise a plastic material.

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