FASTENING APPARATUS AS WELL AS A FASTENING SYSTEM FOR FASTENING A COMPONENT TO A BOLT OF A CARRIER COMPONENT

Abstract

A fastening apparatus is provided for fastening a component to a bolt of a carrier component. The fastening apparatus includes a housing device having a receiving space for receiving a bolt in an axial direction and a fastening clip arranged in the receiving space of the housing device, wherein the fastening clip includes at least two, preferably spring-like latching arms, at whose free ends preferably linear latching edges are formed so as to hold a bolt, wherein the latching edges of the latching arms are inclined relative to the axial direction.

Claims

1. A fastening apparatus for fastening a component to a bolt of a carrier component, comprising: a housing device having a receiving space for receiving a bolt in an axial direction, and a fastening clip arranged in the receiving space of the housing device, wherein the fastening clip comprises at least two latching arms, at whose free ends latching edges are formed so as to hold a bolt, wherein the latching edges of the latching arms are inclined relative to the axial direction.

2. The fastening apparatus according to claim 1, wherein the latching edges of the latching arms are linearly formed and inclined orthogonally to the axial direction relative to an X/Y plane in two different directions, respectively, such that the latching edges of the latching arms have a predetermined slope that is radially circumferential or tangential, to a bolt to be received and thus to an axial axis of the receiving space.

3. The fastening apparatus according to claim 1, wherein due to the slope of the latching edges relative to the axial direction and/or the X/Y plane, the latching arms are configured such that the fastening apparatus can be assembled on a bolt by a movement in the axial direction and can be disassembled by a rotational movement about a longitudinal axis of a bolt extending in the axial direction.

4. The fastening apparatus according to claim 1, wherein the housing device comprises a base wall having a bolt passage opening for introducing a bolt into the receiving space, two diametrically opposed side wall portions, and a top wall, wherein the base wall is connected to the top wall via the two side wall portions, and wherein portions of the side wall portions facing the receiving space, which are referred to as stop portions, are configured in the region of the base wall so as to be conically tapering from the side walls in the direction of the base wall, wherein free ends of the fastening clip, onto which the latching arms are formed, comprise conically tapering pressure portions in the region of the stop portions.

5. The fastening apparatus according to claim 4, wherein in a final assembly position, in which the fastening apparatus is caught on a bolt, the pressure portions are arranged so as to be spaced apart from the respective stop portions, and wherein in a stressed final assembly position, in which the fastening apparatus is tension-stressed, the pressure portions abut the stop portions, so that the pressure portions of the fastening clip, due to the conically tapering design of the stop portions and the pressure portions, act on the latching edges of the latching arms with a pressure force acting in the radial direction inwards in the direction of the receiving space and thus in the direction of a bolt.

6. The fastening apparatus according to claim 4, wherein at the portions of the side wall portions facing the receiving space and arranged adjacent to the stop portions, anti-rotation portions are formed, having anti-rotation elements facing in the direction of the receiving space, wherein the fastening clip comprises anti-rotation recesses in this region, in which the anti-rotation portions are received, such that the fastening clip is received in the receiving space of the housing device in a rotation-proof manner.

7. The fastening apparatus according to claim 1, wherein insertion elements that conically taper in the direction of the receiving space are formed on the base wall in order to subject the fastening clip to a bias, so that it can be arranged in the receiving space in an assembly position.

8. The fastening apparatus according to claim 1, wherein a bolt receptacle extending in the axial direction and configured in portions so as to be tubular is arranged in the receiving space for guiding and positioning a bolt to be received, wherein the bolt receptacle connects the top wall and the base wall.

9. A fastening system having a fastening apparatus according to claim 1 and a threaded bolt or a bolt having a planar sheath wall.

10. A method for assembling a fastening apparatus, comprising the following steps: moving a fastening clip orthogonally to an axial direction in the direction of a receiving space of a housing device, compressing free ends of the fastening clip by means of corresponding, conically tapering insertion elements and thereby subjecting the free legs of the fastening clip to a bias, further sliding of the fastening clip in a direction orthogonal to the axial direction, arranging anti-rotation portions of the housing device in corresponding anti-rotation recesses of the fastening clip and thereby arranging the fastening clip in the receiving space of the housing device in a rotation-proof manner.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The fastening apparatus according to the invention will now be described in further detail on the basis of an exemplary embodiment shown in the figures:

[0048] FIG. 1 is a perspective view of a fastening apparatus according to the invention,

[0049] FIG. 2 is a further perspective view of the fastening apparatus according to the invention,

[0050] FIG. 3 is a side view of the fastening apparatus in which a fastening clip is inserted into a housing device of the fastening apparatus,

[0051] FIG. 4 is a side view of the fastening apparatus in an assembly position, in which the fastening clip is arranged completely in the receiving space of the housing device of the fastening apparatus,

[0052] FIG. 5 is a side view of the fastening apparatus in a final assembly position in a tension-stressed state and in a state of being arranged on a bolt,

[0053] FIG. 6 is a further side view of the fastening apparatus without the fastening clip,

[0054] FIG. 7 is a perspective view of the fastening apparatus without the fastening clip,

[0055] FIG. 8 is a plan view from below onto a base wall having a passage opening for receiving a bolt,

[0056] FIG. 9 is a side view of the fastening apparatus,

[0057] FIG. 10 is a further side view of the fastening clip,

[0058] FIG. 11 is a further side view of the fastening clip, and

[0059] FIG. 12 is a plan view from above onto a top wall of the fastening clip.

DETAILED DESCRIPTION

[0060] A fastening apparatus 1 for fastening a component (not shown) to a bolt 2 of a carrier component (not shown) is described in further detail below on the basis of an exemplary embodiment (FIGS. 1-12).

[0061] Such an assembly or fastening apparatus 1 comprises a base body or a housing device 3 and a fastening clip 5 arranged in a receiving space 4 of the housing device 3.

[0062] The housing device 3 is manufactured by means of a single-component injection molding process and is thus formed from a plastic. The fastening clip 5 is manufactured and formed from a metal, for example a spring steel.

[0063] The housing device 3 comprises a circular disk-shaped top wall 6, side wall portions 7, 8, via which the top wall 6 is connected to a base wall 9.

[0064] The side wall portions 7, 8 are approximately C-shaped in a lateral view.

[0065] In the base wall 9, a bolt passage opening 10 is formed for introducing a bolt 2 into the receiving space 4 of the housing device 3.

[0066] In the region of the base wall 9, portions of the side wall portions 7, 8 facing the receiving space 4 form stop portions 11, 12. The stop portions 11, 12 are configured in the region of the base wall so as to conically taper from the side wall portions 7, 8 in the direction of the base wall 9.

[0067] Furthermore, in this region, insertion elements 14 which extend orthogonally to an axial direction 13 and conically taper in this direction are formed on the base wall.

[0068] Furthermore, anti-rotation portions 15, 16 are formed on the portions of the side wall portions facing the receiving space. In the region of the anti-rotation portions 15, 16, anti-rotation elements 17, 18 extending in the direction of the receiving space 4 and facing the receiving space 4 are integrally formed.

[0069] A bolt receptacle 19 extending in the axial direction 13 is arranged in the receiving space 4. The bolt receptacle 19 comprises a tubular guide portion 20, which is connected to the base wall 9 via two struts 21, 22.

[0070] In a region diametrically opposite the insertion elements 14, the tubular guide portion 20 is connected to the top wall 6 via a connecting portion 23.

[0071] The fastening clip 5 is U-shaped and thus has a transverse leg 24 connecting two free legs 25, 26 to one another.

[0072] At free ends of the legs 25, 26, latching arms 27, 28 are formed. Linear latching edges 29, 30 are formed on the latching arms 27, 28.

[0073] The latching edges 29, 30 are inclined relative to the axial direction 13 similarly to the slope of a thread. Thus, the latching edges 29, 30 are inclined orthogonally to the axial direction 13 relative to an X/Y plane in both an X direction and a Y direction.

[0074] This means that the latching edges 29, 30 increase or decrease radially circumferential or tangentially, such that the latching edges 29, 30 of the latching arms 27, 28 have a predetermined slope that is radially circumferential or tangential to a bolt to be received or to an axial axis 39 of the receiving space 4, respectively.

[0075] The latching edges 29, 30 of the latching arms 27, 28 are thus inclined orthogonally to the axial direction 13 and to the axial axis 39 in two different directions, in an X and a Y direction, respectively.

[0076] This means that the linear latching edges 27, 28 are not only inclined relative to the axial direction 13 such that the latching edges 27, 28 run parallel to the X/Y plane, but rather are inclined corresponding to the slope of a thread relative to the X/Y plane in an X and a Y direction.

[0077] Thus, the latching edges 27, 28 are preferably inclined tangentially to the axial direction 13 or to the axial axis 39 at a predetermined angle, respectively.

[0078] Pressure portions 31, 32 are formed at the free ends of the legs 25, 26, on which the latching arms 27, 28 are arranged. In the region of the pressure portions 31, 32, the free ends of the fastening clip 5 are configured so as to be conically tapering in the direction of the receiving space.

[0079] Adjacent to the pressure portions 31, 32, anti-rotation recesses 33, 34 are recessed from the material of the fastening clip 5.

[0080] In an assembly position 35 in which the fastening apparatus 1 is in a starting state for assembling a component onto a bolt 2 of a carrier component, the pressure portions 31, 32 of the fastening clip 5 are arranged so as to be spaced apart from the stop portions 11, 12 of the housing device 3.

[0081] The anti-rotation elements 17, 18 of the anti-rotation portions 15, 16 of the housing device 3 are received in the anti-rotation recesses 33, 34 of the fastening clip 5 so that the fastening clip 5 is arranged in the receiving space 4 of the housing device 3 in a rotation-proof manner (FIG. 4).

[0082] The two legs 25, 26 are arranged in the region of the side wall portions 7, 8 and the transverse leg 24 is arranged in the region of the top wall 6 parallel thereto and in a free space between the tubular guide portion 20 and the connection portion 23.

[0083] In an unstressed final assembly position 37 (not shown), in which the fastening apparatus is caught on a bolt, the pressure portions are arranged so as to be spaced apart from the respective stop portions.

[0084] In a stressed final assembly position 38 (FIG. 5) in which the fastening apparatus is tension-stressed, the pressure portions abut the stop portions, so that the pressure portions of the fastening clip, due to the conically tapering design of the stop portions and the pressure portions, act on the latching edges of the latching arms with a pressure force acting in the radial direction inwards in the direction of the receiving space and thus in the direction of a bolt.

[0085] In this manner, due to the striking of the pressure portions of the fastening clip against the stop portions of the housing device, the latching edges of the latching arms are subjected to a force acting in the direction of a bolt arranged in the receiving space as soon as the bolt is tension-stressed. In the unstressed state, the pressure portions are arranged so as to be spaced apart from the stop portions.

[0086] Thus, in the stressed final assembly position, a bolt arranged in the receiving space can thereby be subjected to a higher compressive force compared to the unstressed final assembly position in order to significantly increase the holding force.

[0087] Furthermore, according to the present invention, a system 36 comprising the fastening apparatus 1 as well as a bolt 2 of a carrier component is provided.

[0088] In addition, according to the present invention, a method for assembling a fastening apparatus according to the present invention is provided. It includes the following steps:

[0089] moving a fastening clip orthogonally to an axial direction in the direction of a receiving space of a housing device,

[0090] compressing free ends of the fastening clip by means of corresponding, conically tapering insertion elements and thereby subjecting the free legs of the fastening clip to a bias,

[0091] further sliding of the fastening clip in a direction orthogonal to the axial direction,

[0092] arranging anti-rotation portions of the housing device in corresponding anti-rotation recesses of the fastening clip and thereby arranging the fastening clip in the receiving space of the housing device in a rotation-proof manner.

LIST OF REFERENCE NUMERAL

[0093] 1 Fastening apparatus [0094] 2 Bolt [0095] 3 Housing device [0096] 4 Receiving space [0097] 5 Fastening clip [0098] 6 Ceiling wall [0099] 7 Side wall portion [0100] 8 Side wall portion [0101] 9 Base wall [0102] 10 Bolt passage opening [0103] 11 Stop portion [0104] 12 Stop portion [0105] 13 Axial direction [0106] 14 Insertion elements [0107] 15 Anti-rotation portion [0108] 16 Anti-rotation portion [0109] 17 Anti-rotation element [0110] 18 Anti-rotation element [0111] 19 Bolt receptacle [0112] 20 Tubular guide portion [0113] 21 Strut [0114] 22 Strut [0115] 23 Connecting portion [0116] 24 Transverse leg [0117] 25 Leg [0118] 26 Leg [0119] 27 Latching arm [0120] 28 Latching arm [0121] 29 Latching edge [0122] 30 Latching edge [0123] 31 Pressure portion [0124] 32 Pressure portion [0125] 33 Anti-rotation recess [0126] 34 Anti-rotation recess [0127] 35 Assembly position [0128] 36 System [0129] 37 Final assembly position (unstressed state) [0130] 38 Final assembly position (stressed state) [0131] 39 Axial axis