Belt end fitting for a motor vehicle, safety belt connection and motor vehicle

Abstract

Belt end fitting (3; 23; 43) for a motor vehicle, to which one end of a safety belt is fastened, wherein the belt end fitting (3; 23; 43) has a bolt (10; 50) and a screwing point (12; 32; 52) for fastening the belt end fitting (3; 23; 43) to a supporting structure (40) of the motor vehicle, wherein the belt end fitting (3; 23; 43) comprises at least two contact surfaces (18, 19) with which the belt end fitting (3; 23; 43) bears against the supporting structure (40), characterized in that the bolt (10; 50) is fastened to the belt end fitting (3; 23; 43) in a materially bonded and / or form-fitting manner, wherein the bolt (10; 50) and the screwing point (12; 32; 52) are both located in one of the contact surfaces (18, 19) of the belt end fitting (3;23;43) are arranged, wherein the other of the contact surfaces (18,19) serves to represent a stop during assembly and in the assembled state of the belt end fitting (3;23;43).

Description

[0001] The invention relates to a belt end fitting according to the preamble of claim 1. The invention also relates to a safety belt connection comprising a safety belt connected to a supporting structure of the motor vehicle by means of such a belt end fitting. The invention further relates to a motor vehicle having a supporting structure and having such a safety belt connection.

[0002] German patent application DE 10 2011 117 002 A1 discloses an end fitting for a vehicle to which one end of a safety belt is fastened, wherein a holding element is designed such that it can be inserted into an opening in a vehicle body and is held in the opening in a form-fitting and / or force-fitting manner. German patent application DE 10 2011 086 836 A1 discloses a safety belt connection with a first holding element which can be fastened to a vehicle seat element or to a body component of a vehicle and which has a recess passing through the first holding element, and with a second holding element from which a mushroom-head-like element protrudes and passes through the recess of the first holding element, wherein the second holding element is held in a form-fitting manner by the first holding element.The German patent application DE 10 2013 205 326 A1 discloses an end fitting for a safety belt device of a motor vehicle with: an opening for fastening one end of a safety belt of the safety device, a keyhole opening for fastening the end fitting to a fastening bolt fixed to the vehicle, wherein the end fitting can be moved by a pivoting movement from an assembly position into a fastening position, wherein a fastening part is provided on the end fitting which can be fastened to a counterpart fixed to the vehicle exclusively in the fastening position of the end fitting, wherein the counterpart is formed by a protruding bolt, wherein the fastening part has a part-circular clamping surface adapted to the outer contour of the bolt, wherein the fastening part comprises a fastening screw.German patent application DE 10 2013 209 205 A1 discloses the combination of two retaining elements using a mushroom-shaped element and a locking screw. The two retaining elements are moved relative to each other before being connected with the locking screw. Both retaining elements can be attached to a vehicle seat element or a vehicle body component.

[0003] The object of the invention is to improve the functionality of a belt end fitting according to the preamble of patent claim 1.

[0004] The problem is solved by a belt end fitting having the features of patent claim 1. The belt end fitting is stably connected to the supporting structure, in particular to a bodyshell, of the motor vehicle in a simple manner by means of the bolt and the screwing point. The bolt is advantageously received in a hole, in particular a blind hole, provided in the supporting structure. The shape of the hole, in particular of the blind hole, is advantageously complementary to the bolt. A second screwing point can advantageously be omitted. The bolt can, for example, be welded into a through hole in the belt end fitting or welded to the belt end fitting. The fact that the belt end fitting comprises at least two contact surfaces with which the belt end fitting rests against the supporting structure, in combination with the bolt and the screwing point, enables a very stable attachment of the belt end fitting to the supporting structure in a simple manner.

[0005] A preferred embodiment of the belt end fitting is characterized in that the screwing point includes a through hole for the passage of a screw shaft. The belt end fitting can be easily and securely attached to the supporting structure of the motor vehicle using only a single screw.

[0006] A further preferred embodiment of the belt end fitting is characterized in that the two contact surfaces of the belt end fitting are angled from each other. One of the contact surfaces of the belt end fitting is provided, for example, on a base body of the belt end fitting. The base body of the belt end fitting serves, for example, for attaching, in particular fastening, a belt buckle to the belt end fitting. For example, an edge region is angled from the base body of the belt end fitting, which serves to form the other contact surface of the belt end fitting. The edge region can advantageously be angled from the base body at an angle of approximately 90 degrees.

[0007] Another preferred embodiment of the belt end fitting is characterized in that the bolt and the screwing point are arranged at a distance from each other that is greater than the diameter of the bolt. This allows the belt end fitting to be easily attached to the supporting structure in a rotationally secure manner.

[0008] Another preferred embodiment of the belt end fitting is characterized in that the belt end fitting is shaped such that, in the event of an accident and / or impact of the motor vehicle, the energy generated by the seat belt is optimally transferred via the belt end fitting into the supporting structure. The shape of the belt end fitting with its two contact surfaces is advantageously coordinated with the position of the bolt and the screwing point on the belt end fitting.

[0009] The invention further relates to a seat belt connection comprising a seat belt that is connected to a supporting structure of the motor vehicle using a previously described belt end fitting. The belt end fitting is preferably attached to the bodyshell of the motor vehicle and connected there by means of the bolt and the screw point. Depending on the bodyshell, the shape or contour of the belt end fitting is advantageously designed to ensure that energy resulting from a force application, for example, in an accident, is specifically directed into the bodyshell.

[0010] The invention further relates to a motor vehicle with a supporting structure and with at least one safety belt connection as described above.

[0011] Further advantages, features, and details of the invention will become apparent from the following description, in which various embodiments are described in detail with reference to the drawings. They show: Fig. 1 a perspective view of a safety belt connection with a belt end fitting according to a first embodiment; Fig. 2 the seat belt connection Fig. 1 from a different perspective; Fig. 3 a perspective view of a safety belt connection with a belt end fitting according to a second embodiment and Fig. 4 a perspective view of a safety belt connection with a belt end fitting according to a third embodiment.

[0012] In the Fig. 1, Fig. 2; Fig. 3; Fig. 4 shows three exemplary embodiments of safety belt connections 1; 21; 41 with a belt end fitting 3; 23; 43 and a belt buckle 5; 25; 45 in perspective. A buckle tongue 6; 26; 46 is assigned to the belt buckle 5; 25; 45.

[0013] The buckle tongue 6; 26; 46 is attached to a seat belt end (not shown). To fasten the seat belt, the buckle tongue 6; 26; 46 can be inserted into the belt buckle 5; 25; 45 and locked therein in a known manner.

[0014] In the Fig. 1 and Fig. In the safety belt connection 1 shown in Figure 2, the belt buckle 5 is fastened to the belt end fitting 3 by means of a belt strap piece 8. The belt end fitting 3 comprises for fastening to a (in the Fig. 1 and Fig. 2 not shown) supporting structure a bolt 10 and a screwing point 12.

[0015] The screwing point 12 includes a through hole 14. A screw can be inserted through the through hole 14, with which the belt end fitting 3 is fastened to the supporting structure during assembly.

[0016] The bolt 10 comprises a bolt pin (15 in Fig. 1) and a bolt head (16 in Fig. 2). The bolt 10 is integrally connected to the belt end fitting 3 by means of the bolt head 16, for example by welding.

[0017] The bolt pin 15 is arranged perpendicular to a contact surface 18 on the belt end fitting 3. When mounting the belt end fitting 3 on the supporting structure, the bolt pin 15 is inserted into a complementary blind hole in the supporting structure.

[0018] A contact surface 19 of the belt end fitting 3 is angled from the contact surface 18. The contact surface 19 is angled essentially perpendicularly from the contact surface 18. Furthermore, the contact surface 19 is slightly curved.

[0019] When assembling the belt end fitting 3, the contact surface 19 represents a stop. This simplifies the positioning of the belt end fitting 3 and the insertion of the bolt pin 15 into the corresponding blind hole of the supporting structure.

[0020] After inserting the bolt pin 15 into the blind hole in the supporting structure, the belt end fitting 3 is easily and securely fastened to the supporting structure using the fastening screw (not shown). A second screw point for fastening the belt end fitting 3 can advantageously be omitted.

[0021] At the Fig. In the safety belt connection 21 shown in Figure 3, the belt end fitting 23 is attached to a connecting plate 28, which is integrally connected to the belt end fitting 23. A bolt point 30 and a screw point 32 are provided on the belt end fitting 23.

[0022] The screwing point 32 includes a through hole 34. The through hole 34 is used to insert a fastening screw.

[0023] The bolt point 30 comprises a through hole 35. The through hole 35 serves to pass through a bolt pin (not shown) of a bolt which can be fastened with its bolt head (also not shown) in a materially bonded manner, for example by welding, to the belt end fitting 23.

[0024] The belt end fitting 23 comprises a base body 38, from which an edge region 39 is angled. The base body 38 with the angled edge region 39 serves to represent two contact surfaces that serve to position the belt end fitting 23 during assembly.

[0025] At the Fig. In the seat belt connection 41 shown in Figure 4, the belt end fitting 43 is attached to a supporting structure 40. The supporting structure 40 is a shell of a motor vehicle.

[0026] A bolt 50 is attached to the belt end fitting 43. The bolt 50 is welded to the belt end fitting 43 with a bolt head (not further identified). A bolt pin (also not further identified) of the bolt 50 is arranged in a form-fitting manner in a blind hole of the support structure 40.

[0027] The belt end fitting 43 further includes a screwing point 52, which is designed as a through hole 54. A fastening screw can be inserted through the through hole 54.

[0028] A threaded blind hole is provided in the support structure 40 into which the fastening screw for fastening the belt end fitting 43 to the support structure 40 is screwed.

[0029] The belt end fitting 43 comprises a base body 58, from which an edge region 59 is angled. The base body 58 and the edge region 59 serve to represent contact surfaces with which the belt end fitting 43 in its Fig. 4 shown installation state on the supporting structure 40.

Claims

[1] Belt end fitting (3; 23; 43) for a motor vehicle, to which one end of a safety belt is fastened, wherein the belt end fitting (3; 23; 43) has a bolt (10; 50) and a screwing point (12; 32; 52) for fastening the belt end fitting (3; 23; 43) to a supporting structure (40) of the motor vehicle, wherein the belt end fitting (3; 23; 43) comprises at least two contact surfaces (18, 19) with which the belt end fitting (3; 23; 43) bears against the supporting structure (40), characterized by , in that the bolt (10; 50) is fastened to the belt end fitting (3; 23; 43) in a material-locking and / or form-fitting manner, wherein the bolt (10; 50) and the screw-on point (12; 32; 52) are both arranged in one of the contact surfaces (18, 19) of the belt end fitting (3; 23; 43), wherein the other of the contact surfaces (18, 19) serves to represent a stop during assembly and in the assembled state of the belt end fitting (3; 23; 43). [2] Belt end fitting according to claim 1, characterized bythat the screwing point (12;32;52) comprises a through hole (14;34;54) for passing through a screw shaft. [3] Belt end fitting according to one of the preceding claims, characterized by that the two contact surfaces (18,19) of the belt end fitting (3;23;43) are angled from each other. [4] Belt end fitting according to one of the preceding claims, characterized by that the bolt (10;50) and the screwing point (12;32;52) are arranged at a distance from each other which is greater than a bolt diameter of the bolt (10;50). [5] Safety belt connection (1; 21; 41) with a safety belt which is connected to a supporting structure (40) of the motor vehicle by means of a belt end fitting (3; 23; 43) according to one of the preceding claims. [6] Motor vehicle with a supporting structure (40) and with at least one safety belt connection (1;21;41) according to claim 5.

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