Fastening device for attaching a component to a supporting component

Abstract

Fastening device (1) for attaching a component to a support component (4) comprising a housing device (2) with a receiving recess (35), at least one actuating element (33, 34) and at least one locking element (28, 29) for locking into a support component (4) and a pin device (2) which can be slidably arranged in the receiving recess (35) of the housing device (2) in a mounting direction (6) with at least one movable pin arm (46, 47) with a pin locking means (48, 49) for transmitting a mounting force acting in the mounting direction (6) to a rigid housing locking means (36, 37) formed on the housing device (2) in order to preferably arrange the fastening device (1) in an intermediate mounting position (52), wherein the housing locking means (36, 37) is designed corresponding to the pin locking means (48, 49), and wherein the actuating element (33, 34) is designed for actuating the at least one pin arm (46, 47).

Description

[0001] The present invention relates to a fastening device for attaching a component, in particular an airbag, to a support component.

[0002] DE 10 201 0034 006 A1 describes a fastening clip with a spring clip designed to engage in a carrier and a latch designed to lock the spring clip in the carrier. The spring clip has at least one detent element that is elastically movable between a starting position, an intermediate mounting position, and a mounting position. The latch has at least one locking element that interacts with the detent element in such a way that the latch can only be moved from a starting position to a locking position when the detent element is in the mounting position. When the spring clip is not mounted, the detent element of the spring clip is in an unloaded position, which is defined here as the starting position.During insertion of the spring clip into a carrier, the spring elements are displaced from the edge of the opening, shifting them into a pre-tensioned intermediate mounting position. When the spring clip is fully inserted, the locking elements engage with the carrier in a mounting position. Depending on the carrier's shape, this mounting position may also correspond to the initial position. The locking mechanism serves to secure the spring clip's locking elements in the mounting position after the fastening clip has been installed, preventing or limiting removal of the fastening clip to extremely high pull-out forces. To prevent the locking mechanism from being inserted into the spring clip before installation, it incorporates a locking element that interacts with the locking element in such a way that insertion of the locking mechanism into the spring clip is prevented in both the initial and intermediate mounting positions.Only when the spring clip is fully assembled and the locking elements are engaged in the assembly position will the bolt be released, allowing it to be inserted into the locking position. This reliably prevents the bolt from being inserted prematurely. Furthermore, a visual check can be performed to ensure the mounting clip is fully installed, as an incorrectly mounted clip prevents the bolt from being inserted, causing it to protrude from the spring clip.

[0003] German patent application DE 102 018 006 297 A1 discloses a multi-part clip for fastening one element to another. The clip comprises a first component and a locking element, wherein the first component has a head and a shaft extending from the head along a shaft axis with a tip, the shaft having a base body and a locking element, the locking element having a contact surface extending away from the tip and the head having a contact surface facing the tip, the locking element being movable between a first position and a second position, wherein a part of the locking element projects from the base body of the shaft in the first position and the locking element projects from the base body less than in the first position or not at all in the second position, wherein a test area is provided in the base body of the shaft.in which no section of the locking element is located when the locking element is in the first position, and in which a section of the locking element is located when the locking element is in the second position, wherein the locking means has an outer part which is intended to remain outside the component, and an inner part which can be inserted into the base body in an insertion direction up to an end position, wherein the inner part has a locking pin which has a section which, when the inner part is inserted to its end position, extends into the test area, and the locking pin has a nose extending at an angle to the insertion direction which, in an intermediate position in which the inner part is partially inserted into the base body but has not yet reached its end position, penetrates an opening in the base body of the shaft and comes to rest with an edge of the opening,so that further insertion of the locking device beyond the intermediate position is prevented, wherein the nose can be pressed towards the interior of the base body until further insertion of the locking device beyond the intermediate position is possible, characterized in that in the intermediate position the locking pin does not contact a detent element located in the first position.

[0004] Such fastening devices are also known from DE 10 2014 101 119 A1, DE 10 2004 025 698 A1, US 2015 / 0300388 A1, DE 601 26 229 T2 or DE 102 55 902 A1. These serve to fasten components in a vehicle.

[0005] The object of the present invention is to provide a fastening device that is safe and reliable in operation.

[0006] Another object of the present invention is to provide an integrated assembly verification that is easy to operate and requires no tools.

[0007] One or more of these tasks is solved by a fastening device as defined in independent claim 1. Advantageous embodiments are specified in the dependent claims.

[0008] According to the invention, a fastening device for attaching a component to a support component is provided. This device comprises a housing assembly with a receiving recess, at least one actuating element, and at least one detent element for locking into a support component, and a pin assembly slidably arranged in the receiving recess of the housing assembly in a mounting direction, with at least one movable pin arm and a pin detent element for transmitting a mounting force acting in the mounting direction to a rigid housing detent element molded onto the housing assembly, preferably to arrange the fastening device in an intermediate mounting position, wherein the housing detent element is designed corresponding to the pin detent element, and wherein the actuating element is designed to actuate the at least one pin arm.

[0009] The invention preferably relates to a fastening device that can be used to fasten an airbag in a vehicle.

[0010] The housing of the fastening device is inserted through an opening in an airbag and then pushed into a component opening in a support component. The pin assembly is then subjected to a force acting in the mounting direction.

[0011] According to a first aspect, the invention is characterized in that the at least one movable locking arm of the pin assembly, together with the pin locking element, transmits the assembly force acting in the assembly direction directly to a rigid housing locking element molded onto the housing assembly and thus to the housing assembly itself. Because the assembly force initially acts only on the housing locking element molded onto the housing assembly and not on movable or flexible components, such as locking elements, of the fastening device, these components are not continuously subjected to the assembly force. This prevents unintentional jamming or jamming in a component opening, in particular blocking of the locking elements. Thus, continuous and reliable assembly of a component using the fastening device is enabled. Furthermore, the assembly force has no influence on the verification function of the fastening device.

[0012] Furthermore, the fastening device is characterized by a second feature: the actuating element is designed to actuate at least one pin arm. This means the pin arm is not directly actuated by an edge of the component opening, but rather through indirect contact, as the movable pin arm is actuated by the actuating element. Such indirect contact is more reliable because the surface finish and manufacturing quality of the component opening edge do not directly affect the function and mobility of the pin arms. The self-contained system is therefore independent of external factors that could negatively impact assembly.

[0013] According to the clip disclosed in DE 102 018 006 297 A1, the locking pin is designed so that in the intermediate position, it does not contact a detent element located in a first position. This decouples the locking pin in the intermediate position from the detent element in the first position. This is intended to have the advantage that the detent element cannot displace the locking pin when the detent element is moved from the first to the second position. Consequently, the contact between the nose of the locking pin and the edge of the opening in the base body cannot be dislodged by the detent element. In this case, the locking element should remain securely in the intermediate position, regardless of the movement of the detent element. This is said to be advantageous in a pre-assembly stage where the detent element is pressed in and the locking element simultaneously remains in the intermediate position.Until final assembly, when the locking pin is in its final position, it must be ensured that the locking pin does not unintentionally fall out of the component. A further advantage of this clip is that, in a pre-assembly state, the locking element is in the second position, while the locking pin remains securely in the intermediate position until it is moved into its final position in a subsequent assembly step. The absence of interaction between the locking element and the locking pin in the intermediate position should therefore enable new assembly applications, such as step-by-step assembly.

[0014] With such fastening devices, it is problematic to precisely coordinate the unfolding of locking elements behind a support component and the more or less simultaneous release of movable arms (e.g., a lug of a locking pin) that connect to a housing for transmitting an assembly force, so that the fastening device, and especially its locking elements, do not jam in a component opening of the support component. In the clip disclosed in DE 102 018 006 297 A1, these two processes must be very precisely synchronized. In the worst case, the lugs of the locking pin could release from the housing too early and thus slip downwards before the locking elements are reliably engaged in the support component.

[0015] If precise timing is not possible, the component must be pressed further in the assembly direction. The locking elements then unfold, and only when the component is pressed further in the assembly direction is the locking pin activated by the tabs over the edge of the component opening. This results in compression of the component being fastened, e.g., an airbag module, and may lead to increased assembly force. In other words: To activate the locking pin's tabs through the edge of the component opening, the clip must continue to move in the assembly direction after the locking elements have unfolded behind the support component's sheet metal in the final assembly position.

[0016] In the fastening device according to the invention, there is a direct connection and thus a dependency between the pin arms of the pin assembly and the locking elements. This means that a pin element of the pin assembly cannot slip during the transition from an intermediate assembly position to a final assembly position because it is locked by the locking elements. However, immediately after the locking elements engage, the pin element or the pin assembly moves into the final assembly position. Therefore, the device according to the invention is extremely reliable and assembly problems are avoided.

[0017] According to another aspect, the pin device can have a rigid pin element, wherein the pin element has a surface located at the front in the assembly direction, which is designed to transmit a force acting in the assembly direction to the at least one detent element of the housing device, preferably to arrange the fastening device in a final assembly position.

[0018] Once the intermediate assembly position is reached, the pin arms are folded in by the actuating elements, and the assembly force is transferred via the pin element to the folded-in detent elements. The assembly force transmitted via the pin arms continues to act primarily in the assembly direction (downwards) on the detent elements, which are held in position by the edge of the component opening, thus exerting a counterforce to the rigid pin element. Nevertheless, a component of the assembly force acts outwards at a predetermined angle, ensuring that the main force is applied in the assembly direction to achieve the final assembly position. Simultaneously, upon reaching the final assembly position, the outward-acting component of the assembly force ensures the unfolding of the detent elements (detent arms), thereby further guaranteeing reliable assembly.This ensures that the locking elements unfold and lock securely and reliably. It also simplifies assembly.

[0019] According to a further aspect of the present invention, two actuating elements and two locking elements can be formed on the housing device, which are arranged on adjacent side walls of the housing device in such a way that the two actuating elements are arranged opposite each other and offset from each other in the assembly direction such that the locking elements are arranged at the front in the assembly direction and the actuating elements are arranged behind them in the assembly direction.

[0020] Because the actuating elements are offset by 90° or arranged on different side walls of the housing assembly, and because the assembly force is first applied to the rigid housing and then to the locking elements, the force transmission in the assembly direction is secure and reliable, reaching the locking elements folded in by the edge of the component opening. The advantages outlined above apply analogously.

[0021] According to another aspect of the fastening device according to the invention, the pin element can be arranged in a final assembly position between the locking elements in such a way that movement of the locking elements in the final assembly position is blocked, so that the fastening device is secured in the final assembly position.

[0022] Thus, once the final assembly position is reached, the pin element is positioned between the locking elements, preventing them from folding in. This ensures a secure and reliable locking of the fastening device in the final assembly position.

[0023] Furthermore, a verification section extending transversely to the mounting direction can be provided at an end of the pin device that is located opposite the mounting direction, which in the final assembly position can be arranged completely, preferably flush, in a recess of the housing device.

[0024] The verification section of the pin device, in conjunction with the corresponding recess of the housing device, thus forms a verification device by means of which it can be determined visually and haptically in a simple way whether the fastening device is correctly arranged or mounted in the final assembly position.

[0025] In particular, the verification section can be equipped with locking wings with at least one and preferably two pre-assembly locking means and / or with at least one and preferably two final assembly locking means, wherein the pre-assembly locking means fix the housing device and the pin device in a pre-assembly position relative to each other and / or the final assembly locking means fix the housing device and the pin device in a final assembly position relative to each other.

[0026] By providing the locking wings with at least one and preferably two pre-assembly locking means, the pin assembly and the housing assembly are fixed relative to each other in a transport / pre-assembly position. In this way, the pin assembly is subjected to a force acting in the assembly direction and secured against displacement in the opposite direction.

[0027] Furthermore, the transport securing of the pin assembly can be achieved by the pin locking devices described above in conjunction with the housing locking devices. In this way, the pin assembly is subjected to a force acting against the assembly direction and secured against displacement in the assembly direction.

[0028] This creates a transport safety device, and the fastening device according to the invention can be delivered as a prefabricated unit, allowing it to be mounted as a single unit onto a support component. Furthermore, this prevents the pin assembly and the housing assembly of the fastening device from separating from each other or the pin assembly from falling out of the housing assembly.

[0029] One cause for a pin falling out could be forces exerted during transport of the pre-assembled fastening device, such that these forces dislodge the pin assembly from the housing. Another cause could be, for example, the weight of the pin assembly itself.

[0030] Furthermore, locking wings can be provided with at least one and preferably two final assembly locking devices that fix the pin assembly and the housing assembly in their final assembly position relative to each other. This ensures that the fastening device cannot detach from the support component and, in particular, that an airbag can be securely and reliably mounted using the fastening device.

[0031] In addition, a stop element with a stop surface for limiting displacement of the pin device in the receiving recess of the housing device in the assembly direction can be formed on the pin device, wherein a corresponding counter-stop surface is formed on the housing device.

[0032] The stop surface, which limits the movement of the pin assembly within the receiving recess of the housing, and the corresponding counter-stop surface formed on the housing prevent the pin assembly from being inserted too far into the housing. Furthermore, the user receives haptic feedback indicating that the pin assembly no longer requires force in the assembly direction, allowing the locking elements to unfold and the fastening device to lock into the support component.

[0033] Preferably, the housing and the pin assembly can be made of the same or two different plastics. Suitable plastics include thermoplastics such as polyamide (PA) or polyoxymethylene (POM).

[0034] Because the fastening device is made entirely of plastic, it can be manufactured easily and inexpensively.

[0035] Furthermore, the housing device can have a mounting surface extending transversely to the mounting direction in order to fix a mounting section of a component to be fastened, preferably an airbag, between the mounting surface and a surface of a support component extending parallel to the mounting surface.

[0036] In the area of ​​the mounting surface, at least one spring element can be provided to apply a spring force acting in the mounting direction to the component to be mounted in the final assembly position.

[0037] Applying a spring force to the component to be fastened, acting in the direction of assembly, ensures precise positioning of the component to be fastened.

[0038] Furthermore, according to the invention, a method is provided for inserting the fastening device into a component opening of a support component or for transferring it from a transport / pre-assembly position via an intermediate assembly position to a final assembly position 39.

[0039] This procedure is described in detail below using the example embodiment.

[0040] The advantages of the present invention shown above with reference to the fastening device apply analogously to the method according to the invention.

[0041] The present invention will be described in more detail below with reference to an embodiment illustrated in the figures. These show: Fig. 1 a perspective view of a fastening device according to the invention in a pre-assembly position or in a transport position, Fig. 2 the fastening device Fig. 1 in another perspective view, Fig. 3 a side-section perspective view of the fastening device in a pre-assembly position, Fig. 4 Another side-section perspective view of the fastening device in a pre-assembly position, Fig. 5 a side view of the fastening device in a pre-assembly position, Fig. 6 Another side view of the fastening device in a pre-assembly position, Fig. 7 a side view of the fastening device during the transition from a pre-assembly position to an intermediate assembly position, Fig. 8 a side-cut view of the fastening device during the transition from the intermediate assembly position to a final assembly position, Fig. 9 a side view of the fastening device in the final assembly position, Fig. 10 a side view of the fastening device in a final assembly position, Fig. 11 a side view of a pin assembly of the fastening device, Fig. 12 a side view of the pin assembly in the pre-assembly position, and Fig. 13 A side view of the pin assembly in the final assembly position.

[0042] A fastening device 1 according to the invention for fastening a component, preferably an airbag, to a support component 4 comprises a housing device 2 and a pin device 3 ( Fig. 1 to 13).

[0043] The fastening device 1 is designed for attaching a component (not shown) to a support component 4. The support component 4 has a corresponding recess 5 in which the fastening device 1 can be fixed. The fastening device 1 can be inserted into the recess in a mounting direction 6 that extends transversely to a surface of the support component 4.

[0044] The housing unit 2 of the fastening device 1 is approximately T-shaped in a side view, the housing unit 2 comprising a verification section 7 and a fastening section 8.

[0045] The verification section 7 is approximately box-shaped and comprises four side walls 9, 10, 11, 12 and a bottom wall 13. The four side walls 9, 10, 11, 12 and the bottom wall 13 are part of a receiving recess 35 of the verification section 7.

[0046] In the base wall 13 a receiving opening 14 is formed for receiving the pin device 3.

[0047] On two opposing side walls 9, 10, 11, 12 of the fastening area, locking recesses 15, 16 are formed in the form of through openings, which have locking edges 17, 18 extending in a horizontal direction.

[0048] A surface of the bottom wall 13 of the box-shaped verification area 7, pointing against the mounting direction 6, forms a counter-stop surface 19. A surface of the bottom wall 13, pointing in the mounting direction 6, forms a fastening surface 20 for fixing a component to be fastened.

[0049] In the area of ​​the corners of the mounting surface 20, four spring elements 21 are molded in order to apply a spring force acting in the mounting direction 6 to a component to be fastened.

[0050] The fastening section 8 is approximately cuboid in shape and transitions into the verification section 7 in the area of ​​the receiving opening 14 and extends in the assembly direction 6.

[0051] The fastening section 8 has four side walls 22, 23, 24, 25 and a bottom wall 26 located at the front in the mounting direction.

[0052] In a locking area 27 of the fastening section 8 located at the front in the assembly direction 6, locking elements 28, 29 are arranged in two opposing side walls 22, 23 in an approximately wedge shape.

[0053] The wedge-shaped locking elements 28, 29 are pivotally connected with their edges, which are located at the front in the assembly direction and extend transversely to the assembly direction 6, to the corresponding side walls 22, 23, 24, 25 of the housing assembly 2 such that these are pivotable approximately transversely to the assembly direction 6. Furthermore, the locking elements 28, 29 have locking / force transmission surfaces 30, 31 extending approximately transversely to the assembly direction.

[0054] In the area between the resting area 27 and the verification section 7, an actuation area 32 is provided on the fastening section 8.

[0055] In the actuation area 32, actuation elements 33, 34 are provided in the area of ​​two opposing side walls 24, 25 and adjacent to the locking elements 28, 29.

[0056] The actuating elements 33, 34 are approximately wedge-shaped and their edges, located at the front in the mounting direction 6, are pivotally connected to the corresponding side walls 24, 25 of the mounting section 8. The actuating elements 33, 34, like the locking elements 28, 29, are displaceable or tiltable approximately transversely to the mounting direction 6.

[0057] The side walls 22, 23, 24, 25 of the fastening section 8, in conjunction with the bottom wall 6, define the receiving recess 35 of the housing device 2.

[0058] In an area of ​​the receiving recess 35 that lies opposite to the mounting direction 6, housing locking means 36, 37 are formed in the form of a step in the area of ​​the actuating elements 33, 34.

[0059] The pin device 3, which is movable in the receiving recess 35 and in the mounting direction 6, is described in more detail below.

[0060] The pin assembly 3 is also approximately T-shaped and has a plate-shaped verification element 38 extending approximately transversely to the assembly direction. In a final assembly position 39, the verification element 38 can be arranged flush with the surface of the box-shaped verification section 7 of the housing assembly 2 such that a verification surface 40 located opposite the assembly direction is flush with the edges of the side walls 9, 10, 11, 12 of the verification section 7 that are located opposite the assembly direction.

[0061] In addition, locking wings 41, each with a pre-assembly locking device 42 and a final assembly locking device 43, are formed on the verification element at two opposing edges.

[0062] A cuboid stop element 44 is formed on a surface of the verification element 38 that is located at the front in the assembly direction 6.

[0063] A surface of the stop element 44 located at the front in the mounting direction 6 forms a stop surface 45 for limiting displacement of the pin assembly 3 in the mounting direction. The stop surface 45 is designed to abut the counter-stop surface 19 of the housing assembly 2.

[0064] The stop element 4 has pin arms 46, 47 that are movable transversely to the mounting direction 6 and extend approximately in the mounting direction 6. Pin locking means 48, 49 extending approximately transversely to the mounting direction 6 are formed on the pin arms 46, 47.

[0065] The pin locking means 48, 49 are designed to transmit a force acting on the pin assembly 3 in the assembly direction 6 via the housing locking means 36, 37 to the housing assembly 2. In this way, the fastening device 1 can be displaced in the assembly direction until an intermediate assembly position 52 is reached.

[0066] The pin arms 46, 47 can be moved transversely to the mounting direction 6 by means of the actuating elements 33, 34 of the housing assembly 2.

[0067] In the area between the pin arms 46, 47, a pin element 53 extending in the assembly direction is provided on the stop element 44.

[0068] The pin element extends beyond the free ends of the pin arms 46, 47 in the assembly direction 6 and has a force transmission surface 54 located at the front in the assembly direction 6. The surface 54 is curved or bent in the direction of the locking elements 28, 29.

[0069] The surface 54 is provided for applying a force acting in the assembly direction to the locking elements 28, 29 or their force transmission surfaces 30, 31 in order to move the pin device 3 from the intermediate assembly position 52 to a final assembly position 55.

[0070] The following describes a method for inserting the fastening device into a component opening 5 of a support component 4 or for transferring it from a transport / pre-assembly position 55 via an intermediate assembly position 52 to a final assembly position 39 ( Fig. 5 to 10).

[0071] First, the fastening device 1 is inserted into a component opening 5 of a support component 4 in the assembly direction 6 such that the fastening section 8 of the housing device 2 is arranged in the component opening 5.

[0072] The force transmission from a user to the fastening device 1 is effected by applying a force to the pin device 3, in particular to the verification element 38 of the pin device 3, acting in the mounting direction 6.

[0073] In the transport / pre-assembly position 55, the pin assembly 3 is essentially arranged in the receiving recess 35 of the housing assembly 2, with the pre-assembly locking means 42 of the verification element 38 engaging behind the locking edges 17, 18 of the locking recesses 15, 16 of the verification section 7. In this way, the pin assembly 3 is held securely and reliably in the housing assembly 2, so that the pin assembly 3 and the housing assembly 2 are securely and reliably connected to each other during transport and a consistent initial position is ensured before the fastening device 1 is mounted.

[0074] The force acting on the pin assembly 3 is transmitted via the pin arms 46, 47 and the corresponding pin locking means 48, 49 to the correspondingly designed housing locking means 36, 37 until the intermediate assembly position 52 is reached.

[0075] While the fastening device 1 reaches the intermediate assembly position by being moved in the assembly direction 6, the actuating elements 33, 34 contact an edge of the component opening 5 and are moved further and further towards the receiving recess 35, thereby also moving the pin arms 46, 47 further and further towards each other.

[0076] After reaching the intermediate assembly position 52, the pin arms 46, 47 are moved transversely to the assembly direction and towards each other by means of the actuating elements 33, 34 so far that the pin locking means 48, 49 are no longer in engagement with the housing locking means 36, 37.

[0077] After the pin locking means 48, 49 are no longer engaged with the housing locking means 36, 37, the device 1 is no longer in the intermediate assembly position 52.

[0078] The force acting in the assembly direction 6 to insert the fastening device into the support component 4 is then no longer transmitted via the pin arms and the rigid section of the housing device 2 in the receiving recess, in which the housing locking means 36, 37 are integrally formed, but the surface 54 of the pin element 53 transmits the force to the force transmission surfaces 30, 31 of the locking elements, which then also contact the edge of the component opening 5 and are thus arranged almost completely in the receiving recess 35.

[0079] The force transmission from the surface 54 of the pin element 53 to the force transmission surfaces 30, 31 of the pin element 53 takes place until the final assembly position 39 is reached.

[0080] When the fastening device 1 is fully inserted into the component opening 5 of the support component 4 in the assembly direction, the locking elements 28, 29 are no longer held by an edge of the component opening of the support component or pressed inwards, but are folded outwards transversely to the assembly direction by the application of an outward force component of the assembly force, so that the locking elements 28, 29 engage behind the component opening 5 or lock behind the component opening.

[0081] To limit the movement of the pin element 53 in the assembly direction 6, the stop surface 45 of the stop element 44 of the pin device abuts the counter stop surface 19 of the housing device 2 in the area of ​​the verification section 7.

[0082] At this moment, the locking wings 41 and their pre-assembly locking means 42 also release from the locking recesses 15, 16, and the final assembly locking means 43 of the locking wings 41 engage behind the locking edges 17, 18 of the locking recesses 15, 16 to fix the pin assembly 3 in the final assembly position 39 in the housing assembly 2. Upon reaching the final assembly position, when the locking wings are engaged and the stop surface 45 abuts the counter-stop surface 19, the verification surface 40 of the verification element is arranged in the receiving recess in the area of ​​the verification section 7 such that the edges of the side wall 9, 10, 11, 12 opposite the assembly direction are flush with the verification surface 40, so that it is completely received in the verification section 7 of the housing assembly 2. Reference symbol list 1 fastening device 2 Housing setup 3 Pen setup 4 Support component 5 Component opening 6. Mounting direction 7 Verification section 8 Mounting section 9 side wall 10 side wall 11 Side wall 12 side wall 13 Floor wall 14 Intake opening 15 rest recess 16 rest recess 17 Locking edge 18 locking edge 19 Counter-impact surface 20 Mounting surface 21 Spring element 22 side wall 23 Side wall 24 side wall 25 side wall 26 floor wall 27 Rest area 28 locking elements 29 Latching element 30 Rest / power transmission surface 31 Resting / power transmission surface 32 Area of ​​activity 33 Actuating element 34 Actuating element 35. Admission exemption 36 Housing locking devices 37 Housing locking devices 38 Verification element 39 Final assembly position 40 verification area 41 latching wings 42 Pre-assembly locking devices 43 Final assembly locking devices 44 Stop element 45 stop surface 46 pen arm 47 Pen arm 48 pin locking devices 49 Pin locking devices 50 51 52 Intermediate assembly position 53 Pen element 54 Power transmission area 55 Transport / pre-assembly position

Claims

[1] Fastening device (1) for attaching a component to a support component (4) comprising a housing device (2) with a receiving recess (35), at least one actuating element (33, 34) and at least one locking element (28, 29) for locking into a support component (4) and a pin device (2) which can be slidably arranged in the receiving recess (35) of the housing device (2) in a mounting direction (6) with at least one movable pin arm (46, 47) with a pin locking means (48, 49) for transmitting a mounting force acting in the mounting direction (6) to a rigid housing locking means (36, 37) formed on the housing device (2) in order to preferably arrange the fastening device (1) in an intermediate mounting position (52), wherein the housing locking means (36, 37) is designed corresponding to the pin locking means (48, 49), and wherein the actuating element (33, 34) is designed for actuating the at least one pin arm (46, 47). [2] Fastening device (1) according to claim 1, characterized by , that the pin device (3) has a rigid pin element (53), wherein the pin element (53) has a surface (54) located at the front in the assembly direction (6) which is designed to transmit a force acting in the assembly direction (6) to the at least one locking element (28,29) of the housing device (2) in order to preferably arrange the fastening device (1) in a final assembly position (39). [3] Fastening device (1) according to claim 1 or 2, characterized by, that on the housing device (2) two actuating elements (33, 34) and two locking elements (28, 29) are formed, which are arranged on adjacent side walls (22, 23, 24, 25) of the housing device (2) such that the two actuating elements (33, 34) are arranged opposite each other and offset from each other in the assembly direction (6) such that in the assembly direction (6) the locking elements (28, 29) are arranged at the front and in the assembly direction (6) the actuating elements (33, 34) are arranged behind them. [4] Fastening device (1) according to any one of claims 1 to 3, characterized by , that the pin element (53) is arranged in a final assembly position (39) between the locking elements (28, 29) such that movement of the locking elements (28, 29) is blocked in the final assembly position (39), so that the fastening device (1) is secured in the final assembly position (39). [5] Fastening device (1) according to any one of claims 1 to 4, characterized by , that at an end of the pin device (3) lying opposite to the mounting direction (6) a verification section (7) extending transversely to the mounting direction is provided, which in the final assembly position (39) can be arranged completely, preferably flush, in a receiving recess (35) of the housing device (2). [6] Fastening device (1) according to claim 5, characterized by , that on the verification section (7) locking wings (41) are provided with at least one and preferably two pre-assembly locking means (42) and / or with at least one and preferably two final assembly locking means (43), wherein the pre-assembly locking means (42) fix the housing device (2) and the pin device (3) in a pre-assembly position (55) relative to each other and / or the final assembly locking means (43) fix the housing device (2) and the pin device (3) in a final assembly position (55) relative to each other. [7] Fastening device (1) according to any one of claims 1 to 6, characterized by , that a knock-off element (44) with a stop surface (45) for limiting a displacement of the pin device (3) in the receiving recess (35) of the housing device (2) in the assembly direction (6) is formed on the pin device (3), wherein a corresponding counter-stop surface (19) is formed on the housing device (6). [8] Fastening device (1) according to any one of claims 1 to 7, characterized by , that the housing assembly (2) and the pin assembly (3) are made of a plastic. [9] Fastening device (1) according to any one of claims 1 to 8, characterized by, that the housing device (2) has a mounting surface (20) extending transversely to the mounting direction (6) in order to fix a mounting section of a component to be fastened, preferably an airbag, between the mounting surface (20) and a surface of a support component (4) extending parallel to the mounting surface (20). [10] Fastening device (1) according to claim 9, characterized by , that at least one spring element (21) is provided in the area of ​​the mounting surface (20) in order to apply a spring force acting in the mounting direction (6) to the component to be mounted in the final assembly position (39).

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