STABILIZER FOR A VEHICLE SUSPENSION

Abstract

A stabilizer for a vehicle suspension, including a longitudinal polymeric body with a metal frame having two ends and a central sector, having a hole at each end in which there is housed a ball joint, where the frame is formed from two metal parts having an open section which are arranged opposite one another on their open sides, where each part includes a deep drawn portion that goes towards the open side such that the opposing parts are supported on the deep drawn portions and attached therein by welding.

Claims

1. Stabilizer for a vehicle suspension, comprising a longitudinal polymeric body with a metal frame having two ends and a central sector, having a hole at each end in which there is housed a ball joint, wherein the frame is formed from two metal parts having an open section which are arranged opposite one another on their open sides, characterized in that each part comprises at least one deep drawn portion that goes towards the open side such that the opposing parts are supported on said deep drawn portions and attached therein by welding.

2. Stabilizer according to claim 1, wherein the central sector of each part comprises two tabs located in opposition on each side and facing the open side, and the ends comprising rims such that the two opposing parts are supported on the tabs and on the rims, in addition to on the deep drawn portion.

3. Stabilizer according to claim 1, wherein the welded parts are embedded in an overmolded body which externally coats them and fills the inner space defined by the two opposing metal parts.

4. Stabilizer according to claim 1, wherein each part comprises four deep drawn portions distributed along the length of the central sector.

5. Stabilizer according to claim 1, wherein the parts are spot welded in the deep drawn portions.

6. Stabilizer according to claim 1, wherein the central sector of each part comprises a continuous longitudinal deep drawn portion.

7. Stabilizer according to claim 1, wherein the central sector of the parts is slender and the holes of the ends have a circular configuration, being concentric to the outer contour of the ends which is also mostly circular.

8. Stabilizer according to claim 7, wherein the axes of the two holes of the ends are positioned perpendicular to the longitudinal axis of the straight sector of each part.

9. Stabilizer according to claim 8, wherein each part is symmetrical with respect to the longitudinal axis.

10. Stabilizer according to claim 1, wherein the parts have a substantially planar configuration and can be obtained by means of press forming.

11. Stabilizer according to claim 1, further comprising at least one seat which comprises a perimeter wing, wherein the seat is placed in position within the hole by the opposite side to that of the ball joint, the wing acting as a stop.

12. Stabilizer according to claim 11, wherein said at least one seat comprises a recess in the wing which permits to orientate the seat with respect the parts.

13. Method for obtaining a stabilizer bar for a vehicle suspension, characterized in that it comprises: obtaining two metal parts by means of mechanical press forming, each part having two ends and a central sector comprising at least one deep drawn portion, each end having a hole, arranging said parts opposite one another, welding both parts in the opposing deep drawn portions, and embedding the parts in an overmolded body which externally coats them and fills the inner space defined by the two opposing parts.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To complement the description that is being made and for the purpose of aiding to better understand the features of the invention according to a preferred practical embodiment thereof, a set of drawings is attached as an integral part of said description in which the following has been depicted with an illustrative and non-limiting character:

[0033] FIG. 1 shows a perspective view and a longitudinal section of a preferred embodiment of the part forming the body of the stabilizer of the invention.

[0034] FIG. 2 shows an exploded perspective view of an initial step in the process for obtaining the stabilizer, consisting of arranging the parts opposite one another, as depicted in FIG. 1.

[0035] FIG. 3 shows a perspective view and a detail of the step following the step depicted in FIG. 3 in which both opposing parts are attached by means of welding.

[0036] FIG. 4 shows two views sequentially depicting two phases of a process step following the one depicted in FIG. 3 whereby the joints, FIG. 4a), and the seats, FIG. 4b), are placed in position.

[0037] FIG. 5 shows two views sequentially depicting the phases of a process step following the one depicted in FIG. 4 in which the body is overmolded.

[0038] FIG. 6 shows a perspective view of an embodiment of the seat.

[0039] FIG. 7 shows two views sequentially depicting two phases of a process step following the one depicted in FIG. 3 whereby the joints, FIG. 7a), and the seats of FIG. 6, FIG. 7b), are placed in position.

DETAILED DESCRIPTION

[0040] In view of the described drawings, it can be seen how in one of the possible embodiments of the invention the stabilizer for a vehicle suspension proposed by the invention comprises a longitudinal polymeric body with a metal frame having two ends (3) and a central sector (2).

[0041] Each end (3) comprises a hole (4) in which there is housed a ball joint (7). The frame is in turn formed from two metal parts (1) having an open section which are arranged opposite one another on their open sides.

[0042] As can be seen in the preferred embodiment shown in FIGS. 1 and 3, each part (1) comprises four deep drawn portions (8) distributed along the central sector (2), where each deep drawn portion (8) goes towards the open side. The two opposing parts (1) are therefore supported on said deep drawn portions (8) and attached therein by welding.

[0043] In turn, the central sector (2) of each part (1) comprises two tabs (6) located in opposition on each side and facing the open side. The ends (3) in turn comprise rims (3). In this sense, in an instant after the one depicted in FIG. 2 and before the welding depicted in FIG. 3, the two opposing parts (1) are supported on the deep drawn portions (8) as well as on the tabs (6) and rims (3).

[0044] As depicted in FIG. 5, according to a preferred embodiment of the invention the welded parts (1) are embedded in an overmolded body (5) which externally coats them and fills the inner space defined by the two opposing metal parts (1).

[0045] According to a preferred embodiment, the parts (1) are spot welded in the deep drawn portions (8).

[0046] It is also contemplated that the central sector (2) of each part (1) comprises a continuous longitudinal deep drawn portion (9) which confers greater rigidity and improves mechanical performance of the entire stabilizer as a whole.

[0047] As can be seen in the preferred embodiment depicted in the drawings, the central sector (2) of the parts (1) is slender and the holes (4) of the ends have a circular configuration, being concentric to the outer contour of the ends (3) which is also mostly circular.

[0048] In this sense, the axes of the two holes (4) of the ends (3) are positioned perpendicular to the longitudinal axis of the straight sector (2) of each part (1).

[0049] Therefore, in the embodiment being described each part (1) is symmetrical with respect to the longitudinal axis and has a substantially planar configuration, being able to be obtained by means of press forming.

[0050] FIG. 6 shows an embodiment of the seat (7), which comprises a perimeter wing (10). The seat (7) is intended to be placed in position within the hole (4) by the opposite side to that of the ball joint, as represented in FIG. 7a), thus the wing (10) acts as a stop. Furthermore, the seat (7) comprises a recess in the wing (10) which permits to orientate the seat (7) with respect the parts (1), in order to locate the lubrication channels of the stabilizer.