Suspension link with integral pivot assembly

• US 7,959,168 B2
• Filed: 04/04/2007
• Issued: 06/14/2011
• Est. Priority Date: 04/04/2006
• Status: Active Grant

• Current Assignee: Magna International Incorporated
• Original Assignee: Magna International Incorporated
• Inventors: Nichols, Jeffrey W., Kiselis, Gregory P.
• Primary Examiner(s): Dickson; Paul N.
• Assistant Examiner(s): GOODEN JR, BARRY J
• Application Number:
  US12/294,553
• Publication Number:
  US 20090115155A1
• Time in Patent Office: 1,532 Days
• Field of Search: 403/220, 403/221, 403/222, 403/223, 403/224, 403/261, 280/124.1, 280/124.107, 280/124.116, 280/124.111, 280/124.134, 280/124.109
• US Class Current: 280/124.106
• CPC Class Codes: B60G 2200/31 with two trailing arms rigidly connected to the axle
• CPC Class Codes: B60G 2200/341 Panhard rod
• CPC Class Codes: B60G 2200/342 Watt linkage
• CPC Class Codes: B60G 2204/1244 on a suspension arm
• CPC Class Codes: B60G 2204/416 Ball or spherical joints
• CPC Class Codes: B60G 2204/421 Pivoted lever mechanisms for mounting suspension elements, e.g. Watt linkage
• CPC Class Codes: B60G 2204/4404 Retainers for holding a fixing element, e.g. bushing, nut, bolt etc., until it is tightly fixed in position
• CPC Class Codes: B60G 2206/012 Hollow or tubular elements
• CPC Class Codes: B60G 2206/30 Constructional features of rigid axles
• CPC Class Codes: B60G 7/005 Ball joints B60G7/006 takes precedence; for steering linkage B62D7/16; ball joints per se F16C11/06
• CPC Class Codes: B60G 9/003 the axle being rigidly connected to a trailing guiding device
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A suspension for a motor vehicle having a hollow suspension member including first and second spaced apart sidewalls and a pivot pin. In the preferred embodiment, the pivot pin is a locking assembly that includes a first retainer partially insertable through a first window formed in the first sidewall and a second retainer partially insertable through a second window formed in the second side wall. The first retainer engages the second retainer to present a pivot that receives a pivot arm between the sidewalls.

Claims

1. A suspension for a motor vehicle, comprising:

a moveable suspension link having a hollow portion with first and second spaced apart sidewalls;

a pivot pin extending between the first and second sidewalls; and

a pivot arm partially positioned within the hollow portion and rotatably supported by the pivot pin, the pivot arm including a first end portion and a second end portion, the first end portion extending outwardly from the hollow portion via a first side of the moveable suspension link and the second end portion extending outwardly from the hollow portion via a second side of the moveable suspension link that is opposite the first side, each one of the first and second end portions of the pivot arm extending up to approximately a same maximum distance away from the pivot pin.

2. The suspension of claim 1, wherein the first and second end portions of the pivot arm are substantially centered between a first plane containing the first sidewall and a second plane containing the second sidewall.

3. The suspension of claim 2 wherein the first and second sidewalls are interconnected at one edge by a third wall and at an opposite edge by a fourth wall.

4. The suspension of claim 3, wherein the first portion of the pivot arm extends through an aperture formed in the third wall and the second portion of the pivot arm extends through an aperture formed in the fourth wall.

5. The suspension of claim 1 wherein the pivot pin includes a first radially extending flange in engagement with one of the first and second sidewalls.

6. The suspension of claim 5 wherein the pivot pin includes a second radially extending flange spaced apart from the first flange, the second flange being in engagement with the other of the first and second sidewalls.

7. The suspension of claim 6 wherein the pivot arm includes a first half secured to a second half, the first and second halves engaging one another along a plane that intersects the pivot pin.

8. The suspension of claim 7 further including a split bearing positioned between the first and second pivot arm halves and the pivot pin.

9. The suspension of claim 8 wherein the suspension further comprises a first link being coupled to the first end portion of the pivot arm, and a second link being coupled to the second end portion of the pivot arm.

10. The suspension of claim 9 wherein each of the first and second links includes a ball joint for coupling the first and second links to the pivot arm.

11. The suspension of claim 1, wherein the pivot pin is a locking assembly including a first retainer and a second retainer, wherein the first retainer lockingly engages the second retainer to engage the first and second sidewalls and present a bearing surface rotatably receiving said pivot arm.

12. The suspension of claim 11 wherein the pivot arm is formed from a single, contiguous material.

13. The suspension of claim 12, further including a split bearing positioned to support the pivot arm on the locking assembly.

14. The suspension of claim 11 wherein the first retainer includes two radially extending and axially spaced apart flanges capturing a portion of the suspension link therebetween.

15. The suspension of claim 14 wherein one of the flanges is irregularly-shaped to correspond to a first irregularly-shaped window formed in the suspension link.

16. The suspension of claim 15 wherein the second retainer includes two radially extending and spaced apart flanges capturing a different portion of the suspension link therebetween.

17. The suspension of claim 16 wherein a fastener joins the first and second retainers.

18. The suspension of claim 11, wherein the first retainer partially extends through a first window formed in the first sidewall and the second retainer partially extends through a second window formed in the second sidewall.

19. The suspension of claim 18, wherein the first retainer includes a first flange shaped to correspond to a shape of the first window, wherein the first retainer is rotatable to align the first flange with the first window to allow entry of the first retainer into the hollow portion.

20. The suspension of claim 19, wherein the first retainer is rotatable to misalign the first flange and the first window and resist removal of the first flange from the hollow portion.

21. The suspension of claim 20, wherein the first retainer includes a bore receiving a portion of the second retainer.

22. The suspension of claim 20 wherein a fastener joins the first and second retainers.

23. The suspension of claim 22, wherein the second retainer includes a second flange shaped to correspond to a shape of the second window, wherein the second retainer is rotatable to align the second flange with the second window to allow entry of the second retainer into the hollow portion.

24. The suspension of claim 23, wherein the second retainer is rotatable to misalign the second flange and the second window and resist removal of the second flange from the hollow portion.

25. A suspension for a motor vehicle, comprising:

a moveable suspension link having a hollow portion with first and second spaced apart sidewalls that are interconnected at one edge by a third wall and at an opposite edge by a fourth wall;

a pivot pin extending between the first and second sidewalls; and

a pivot arm partially positioned within the hollow portion and rotatably supported by the pivot pin, the pivot arm including first and second end portions extending outwardly from the hollow portion and being substantially centered between planes containing the first and second sidewalls,

wherein the first portion of the pivot arm extends through an aperture formed in the third wall and the second portion of the pivot arm extends through an aperture formed in the fourth wall.

26. A method of making a suspension assembly having a tubular link with first and second spaced apart sidewalls that are interconnected at one edge by a third wall and at an opposite edge by a fourth wall, a pivot arm and a locking assembly having first and second retainers as well as a fastener, the method comprising:

positioning the pivot arm within a cavity formed in the tubular link such that a first end portion of the pivot arm extends outwardly from the cavity through an aperture formed in the third wall and a second end portion of the pivot arm extends outwardly from the cavity via an aperture formed in the fourth wall;

inserting a portion of the first retainer through a first window formed in the first sidewall;

inserting a portion of the second retainer through a second window formed in the second sidewall; and

interconnecting the first and second retainers with the fastener to present a pivot pin for rotatably supporting the pivot arm.

27. A method of making a suspension assembly having a tubular link with first and second spaced apart sidewalls, a pivot arm and a locking assembly having first and second retainers as well as a fastener, the method comprising:

positioning the pivot arm within a cavity formed in the tubular link such that a first end portion of the pivot arm extends outwardly from the cavity via a first side of the tubular link and a second end portion of the pivot arm extends outwardly from the cavity via a second side of the tubular link that is opposite the first side;

inserting a portion of the first retainer through a first window formed in the first sidewall;

inserting a portion of the second retainer through a second window formed in the second sidewall; and

interconnecting the first and second retainers with the fastener to present a pivot pin for rotatably supporting the pivot arm,

wherein each one of the first and second end portions of the pivot arm extend up to approximately a same maximum distance away from the pivot pin.

28. The method of claim 27 further including positioning a portion of the second retainer within a bore formed in the first retainer.

29. The method of claim 28 further including aligning a key-shaped flange of the first retainer with the first window prior to inserting the portion through the first window and subsequently rotating the first retainer to misalign the flange and the first window to retain the first retainer within the cavity.

30. A suspension for a motor vehicle, comprising:

a moveable suspension link having a hollow portion with first and second spaced apart sidewalls;

a pivot pin extending between the first and second sidewalls; and

a pivot arm partially positioned within the hollow portion and rotatably supported by the pivot pin;

wherein the pivot pin includes a first radially extending flange in engagement with one of the first and second sidewalls;

wherein the pivot pin includes a second radially extending flange spaced apart from the first flange, the second flange being in engagement with the other of the first and second sidewalls;

wherein the pivot arm includes a first half secured to a second half, the first and second halves engaging one another along a plane that intersects the pivot pin.

31. The suspension of claim 30 further including a split bearing positioned between the first and second pivot arm halves and the pivot pin.

32. The suspension of claim 31 wherein the suspension further comprises a first link being coupled to a first end of the pivot arm, and a second link being coupled to a second end of the pivot arm.

33. The suspension of claim 32 wherein each of the first and second links includes a ball joint for coupling the first and second links to the pivot arm.

34. A method of making a suspension assembly having a suspension link with a first shell and a second shell, a pivot arm having a first half and a second half and a pivot pin, the method comprising:

fixing the first shell to the second shell to define a cavity within the suspension link;

coupling the pin to the suspension link, the pivot pin extending through the cavity;

positioning the first half and the second half at diametrically opposed positions adjacent the pivot pin; and

interconnecting the first and second halves to define a pivot arm rotatably supported by the pivot pin.

35. The method of claim 34 further including positioning a portion of the first half outside of the pocket adjacent a first side of the suspension link and positioning a portion of the second half outside of the cavity adjacent a second opposite side of the first link.

36. The method of claim 35 further including coupling a first link to the portion of the first half and coupling a second link to the portion of the second half.

37. The method of claim 36 further including longitudinally positioning the first and second halves between vertical sidewalls of the first and second shell.

38. The method of claim 37 wherein the pivot pin is coupled to one of the first and second shells prior to fixing the first shell to the second shell.