Bearing assembly, in particular as a central bearing for the pivotable attachment of seat backs in a vehicle

Abstract

Bearing assembly for pivoting seat backrests in a vehicle, wherein the bearing assembly has a backrest pivot bearing (3) for the seat backrest and a belt buckle attachment (4) of a safety belt device is also arranged in the area of ​​the backrest pivot bearing (3), wherein the bearing part is designed as a bearing block (2) in which the backrest pivot bearing (3) and the seat belt buckle fastening (4) are integrated, and wherein the bearing block (2) rests on a floor plate (22) of a vehicle body in bearing block contact areas (7, 8, 21), characterized in that a counter plate (23) is attached under the base plate (22), which from below at least in the base plate areas corresponding to the bearing block mounting areas (7, 8, 21) above it rests flat and form-fittingly on the base plate (22), and that the bearing block (2) is screwed to the counter plate (23) at least on part of its bearing block contact areas (7, 8, 21) through the base plate (22).

Description

[0001] The invention relates to a bearing part arrangement, in particular as a central bearing for the pivotable articulation of seat backs in a vehicle, in particular for the pivotable articulation of separately foldable seat backs of a rear seat bench of a motor vehicle.

[0002] Such a bearing part arrangement is known from DE 33 25 508 C2, wherein the bearing part has a backrest pivot bearing for the seat back and a belt buckle fastening of a safety belt device is arranged near the backrest pivot bearing.

[0003] In this specific arrangement, the bearing part is a complex hinge element combined with a ratchet mechanism, and a section of belt strap with a buckle at one end is attached to the hinge point of the belt buckle attachment. Furthermore, the hinge part is simply screwed to the floor panel of a vehicle body with through-bolts, meaning that the required force support, especially in the event of a crash, would likely only be possible with complex, large-diameter sheet metal and bolts.

[0004] DE 103 53 449 A1 discloses a generic bearing block, in particular a center bearing, for pivotably mounting seat backs in a vehicle, and in particular for pivotably mounting separately foldable seat backs of a rear seat bench of a motor vehicle. DE 297 00 908 U1 discloses a seat belt buckle with a fastening fitting.

[0005] The object of the invention is to further develop a generic bearing part arrangement in such a way that cost and assembly advantages can be achieved with a simple and cost-effective design.

[0006] This object is achieved according to the invention in that the bearing part is designed as a bearing block in which the backrest pivot bearing and the belt buckle fastening are integrated.

[0007] By integrating two functions into a simple bearing block, the entire bearing assembly can be manufactured cost-effectively and is easy to install. Furthermore, the space requirement is relatively small, so that the bearing assembly according to the invention can be advantageously used even in confined spaces, particularly as a center bearing in vehicles with two seats in the rear row.

[0008] According to the invention, the bearing block rests with contact areas on a floor panel of the body. A counter-plate is also attached beneath the bearing block and beneath the floor panel, which from below rests flatly and positively against at least the floor panel areas corresponding to the bearing block contact areas above it. Furthermore, the bearing block is bolted to the counter-plate through the floor panel at least in part of its contact areas. The counter-plate transfers forces on the bearing block flatly and positively to relatively large areas of the floor panel through the floor panel, so that large forces can advantageously be absorbed and supported both at the backrest pivot bearing and at the seat belt buckle attachment, particularly in the event of a crash.

[0009] Depending on the space available, especially accessibility, the screw connections can be made from below or from above.

[0010] It has been shown that the required stability and force support can be achieved appropriately with a three-point mounting bracket. The bracket is bolted to two connection points opposite each other in the transverse direction of the vehicle at the rear and to a central connection point at the front.

[0011] Guide pins can also be provided on the base plate and / or counter plate side as assembly and adjustment aids. These pins engage in corresponding guide holes on the bearing block. Such guide pins can also function as support elements.

[0012] In a preferred specific embodiment, the bearing block is formed from two parallel, spaced-apart bearing plates arranged in the longitudinal and vertical direction of the vehicle, each of which is folded at the rear to form a laterally horizontally angled connecting flange for the two rear connection points. The bearing block is curved upwards in the longitudinal center region, where the backrest pivot bearing is attached. At the front and offset downwards from the backrest pivot bearing, two opposing bearing block connecting tabs are arranged on the two bearing plates, projecting out in the transverse direction of the vehicle. Between these, two parallel belt buckles with associated belt buckle connecting tabs are connected to a connection axis arranged in the transverse direction of the vehicle. Such a bearing block is simple and cost-effective to manufacture, and the backrest pivot bearing and the belt buckle fastening, as well as the connecting elements, are easily integrated.

[0013] A spiral compression spring can be attached to the connection axis between the belt buckle connection tabs, which then pivotally holds the two belt buckles at a distance under pre-tension.

[0014] The parallel bearing block plates can be connected to each other at several points to ensure high bearing block stability, with at least one connection being expedient in the area of ​​the backrest pivot bearing and the bearing block connection tabs.

[0015] In a particularly preferred application as a center mount, the bearing block is located at a ramp-like transition area formed by the sloping surface of a floor panel between a body pan and a higher trunk floor. In this application, both the backrest pivot bearing and the seat belt buckles are located at a well-suited functional location.

[0016] In a further embodiment, the bearing block can contain a receiving opening that runs through the transverse direction of the vehicle for a cross strut of the rear seat bench.

[0017] An example of implementation is explained using a drawing.

[0018] They show: Fig. 1 a side view of a bearing block in which a backrest pivot bearing and a belt buckle fastening are integrated, Fig. 2 a perspective view obliquely from below of the arrangement according to Fig. 1, and Fig. 3 a perspective view obliquely from above of a bearing block mounted in a vehicle.

[0019] In the Fig. 1 and Fig. 2 shows a bearing part arrangement 1 with a bearing block 2 in which a backrest pivot bearing 3 and a belt buckle fastening 4 are integrated.

[0020] As can be seen in particular from the Fig. 2 and Fig. As can be seen in Figure 3, the bearing block 2 consists of two bearing block plates 5, 6 arranged vertically in the vehicle's longitudinal direction and spaced parallel to one another, each of which is bent at the rear to form a laterally angled bearing block contact area 7, 8. The bearing block 2 with its bearing block plates 5, 6 is curved upwards in the longitudinal center region, where the backrest pivot bearing 3 is located. In the state shown, the associated seat backs with their seat back pivot axes are not yet mounted.

[0021] At the front of the bearing block and offset downwards from the backrest pivot bearing 3, the bearing block plates 5, 6 are formed into two opposing bearing block connecting lugs 9, 10, projecting in the transverse direction of the vehicle, between which a connecting axis 11 for two belt buckles 12, 13 is inserted. The belt buckles 12, 13 have two belt buckle connecting lugs 14, 15, between which a spiral compression spring 16 is inserted on the connecting axis 11, so that the two belt buckles 12, 13 are pivotally held at a distance under pretension.

[0022] The bearing block plates 5, 6 are connected to each other in the area of ​​the backrest pivot bearing 3 and the bearing block connecting tabs 9, 10 and, if necessary, at other points.

[0023] As from Fig. 3, the bearing block 2 is arranged as a central bearing on a ramp-shaped transition area 17 formed by an inclined surface of a floor panel 22 between a floor pan of the body and a higher arranged trunk floor or in the area of ​​a center tunnel. Furthermore, the bearing block 2 has a receiving opening 18 below the backrest pivot bearing 3, in which a (in Fig. 3) cross brace 19 of the rear seat bench arrangement. To clarify the installation direction of the bearing block 2, Fig. 1 the direction of vehicle travel is indicated by an arrow 20.

[0024] The bearing block 2 is mounted with a three-point bearing. For this purpose, it rests with the bearing block contact areas 7, 8 and a front bearing block contact area 21 behind and between the bearing block connection lugs 9, 10 in the transition area 17 on a (in Fig. 1) base plate 22 in a flat and form-fitting manner. In addition, under the base plate 22 there is a Fig. 1 and Fig. 2, a counter plate 23 is provided, which, as a sheet metal strip, rests positively on the base plate 22 from below and extends particularly in the area of ​​the bearing block contact areas 7, 8 and forward into the bearing block contact area 21. There, the bearing block 2 is screwed to the counter plate 23 with screw connections 23a, 24, 25 through the base plate 22. In the bearing block contact area 21, a guide pin (not shown) can also be provided on the base plate 22 or on the counter plate 23.

[0025] Alternatively, instead of the three-point attachment with the bearing block contact areas 7, 8, only a central rear bolt connection corresponding to the front bolt connection can be provided. The bearing block plates 5, 6 can be widened and angled inward to form bolting points, similar to the front bearing of the belt buckle. List of reference symbols 1 Bearing part arrangement 2 bearing blocks 3 backrest swivel bearings 4 Belt buckle attachment 5 bearing block plate 6 bearing block plate 7 Bearing block installation area 8 Bearing block installation area 9 bearing block connection lugs 10 bearing block connecting lugs 11 Connecting axis 12 Belt buckle 13 Belt buckle 14 belt buckle connection tabs 15 belt buckle connection tabs 16 spiral compression spring 17 Transition area 18 Receiving opening 19 Cross brace 20 Arrow 21 Bearing block installation area 22 floor panel 23 Counter plate 23a screw connection 24 screw connection 25 screw connection

Claims

[1] Bearing part arrangement for the pivotable articulation of seat backs in a vehicle, wherein the bearing part has a backrest pivot bearing (3) for the seat back and, in addition, a belt buckle fastening (4) of a safety belt device is arranged in the region of the backrest pivot bearing (3), wherein the bearing part is designed as a bearing block (2) in which the backrest pivot bearing (3) and the belt buckle fastening (4) are integrated, and wherein the bearing block (2) rests on a floor panel (22) of a vehicle body in bearing block contact areas (7, 8, 21), characterized by , that a counter plate (23) is mounted under the base plate (22), which from below rests flatly and positively on the base plate (22) at least at the base plate areas corresponding to the bearing block contact areas (7, 8, 21) located above it, and that the bearing block (2) is screwed to the counter plate (23) through the base plate (22) at least at part of its bearing block contact areas (7, 8, 21). [2] Bearing part arrangement according to claim 1, characterized by that the screw connections (23a, 24, 25) are inserted from below and / or above. [3] Bearing part arrangement according to claim 1 or 2, characterized by that the bearing block (2) is screwed at the front to a central bearing block contact area (21) and at the rear in a three-point attachment to two bearing block contact areas (7, 8) opposite one another in the transverse direction of the vehicle or alternatively also to a central connection point. [4] Bearing part arrangement according to one of claims 1 to 3, characterized by that guide pins are provided on the base plate side and / or the counter plate side, which engage in associated guide openings on the bearing block (2). [5] Bearing part arrangement according to one of claims 1 to 4, characterized byin that the bearing block (2) is formed from two bearing block plates (5, 6) which are arranged parallel and spaced apart in the longitudinal direction of the vehicle and vertically, which are each folded at the rear to form a laterally horizontally angled bearing block connection area (7, 8), the bearing block plates (5, 6) are curved upwards in the longitudinal middle area and the backrest pivot bearing (3) is attached there, and the bearing block plates (5, 6) have, on the front side and offset downwards relative to the backrest pivot bearing (3), two opposing bearing block connection straps (9, 10) which are flared out in the transverse direction of the vehicle, between which two parallel belt buckles (12, 13) with associated belt buckle connection straps (14, 15) are connected to a connection axis (11) lying in the transverse direction of the vehicle. [6] Bearing part arrangement according to claim 5, characterized bythat a spiral compression spring (16) is placed on the connecting axis (11) between the belt buckle connecting lugs (14, 15), which keeps the belt buckles (12, 13) at a distance in a pivotable manner under pretension. [7] Bearing part arrangement according to claim 5 or 6, characterized by that the two bearing block plates (5, 6) are connected at least in the area of ​​the backrest pivot bearing (3) and the bearing block connecting tabs (9, 10). [8] Bearing part arrangement according to one of claims 1 to 7, characterized by that the bearing block (2) is arranged as a central bearing on a ramp-shaped transition region (17) formed by an inclined surface of a floor panel (22) between a floor pan of the body and a higher arranged trunk floor. [9] Bearing part arrangement according to one of claims 1 to 8, characterized by that the bearing block (2) has a receiving opening (18) extending in the transverse direction of the vehicle for a cross strut (19) of the rear seat bench.

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