Split outer tube anti-walkout bushing
View Patent ↗A pivot bushing for a suspension system has an inner metal and a split outer metal with an elastomeric bushing disposed between the metals. The split outer metal has one end which is partially closed by an inwardly curved portion and one end which is open. The assembly of the bushing is through the open end. Once assembled the open end is closed by placing a cover over the open end and crimping the cover to a flange formed at the open end. In another embodiment, the cover is inserted into the outer metal and the split outer metal is crimped to secure the cover in place.
1. A pivot bushing comprising:
an inner metal;
an outer metal disposed over the inner metal, the outer metal defining a split;
an elastomeric bushing disposed between the inner and the split outer metal; and
a spring eye surrounding the outer metal, the spring eye defining a scarf gap, the split in the outer metal being oriented in a predetermined position in relation to the scarf gap, wherein the split in the outer metal is aligned with the scarf gap.
2. The pivot bushing according to claim 1 , wherein the outer metal has an inwardly curved portion at a first end and a generally cylindrical portion extending from the first end to a second open end, the open end being equal to or larger in diameter than the generally cylindrical portion.
3. The pivot bushing according to claim 2 , wherein the split extends through the first end and the generally cylindrical portion.
4. The pivot bushing according to claim 2 , further comprising a cover secured to the outer metal to close the second open end.
5. The pivot bushing according to claim 4 , wherein the cover is disposed within the outer metal.
6. The pivot bushing according to claim 5 , wherein the cover is secured to the outer metal by a crimp formed in the outer metal.
7. The pivot bushing according to claim 1 , wherein the split extends over a longitudinal length of the outer metal.
8. The pivot bushing according to claim 1 , further comprising a cover secured to the outer metal.
9. The pivot bushing according to claim 1 , wherein the open end defines an outwardly extending flange.
10. The pivot bushing according to claim 9 , wherein a cover is disposed adjacent the outwardly extending flange.
11. The pivot bushing according to claim 10 , wherein the cover comprises a ring portion disposed adjacent the flange and a crimp portion securing the cover to the flange.
12. The pivot bushing according to claim 11 , wherein the cover includes a contoured portion for closing an open end of the outer metal.
13. The pivot bushing according to claim 9 , wherein the split extends through the outwardly extending flange.
14. The pivot bushing according to claim 9 , wherein the outer metal has an inwardly extending portion at a first end and the outwardly extending flange at a second open end, a generally cylindrical portion extending from the first end to the second end, the second open end being equal to or larger in diameter than the generally cylindrical portion.
15. The pivot bushing according to claim 14 , wherein the split extends through the first end, through the generally cylindrical portion and through the outwardly extending flange.
16. The pivot bushing according to claim 14 , wherein a cover is disposed adjacent the outwardly extending flange.
17. The pivot bushing according to claim 16 , wherein the cover comprises a ring portion disposed adjacent the flange and a crimp portion securing the cover to the flange.
18. The pivot bushing according to claim 17 , wherein the cover includes a contoured portion for closing an open end of the outer metal.