Claims
- 1. A damper comprising:
an inner member having an outer substantially cylindrical surface; an outer member having an inner substantially cylindrical surface; the inner member outer surface and the outer member inner surface joined by a flexible connecting member; the inner member further comprising an integral radially extending member, the integral radially extending member having a plurality of spaced tabs extending about an outer perimeter of the inner member.
- 2. The damper as in claim 1, wherein the inner member further comprises a hub for engaging a shaft.
- 3. The damper as in claim 2, wherein the outer member further comprises a belt bearing surface having a profile.
- 4. The damper as in claim 3, wherein the belt bearing surface comprises a multi-ribbed profile.
- 5. The damper as in claim 2, wherein the hub further describes a bore for engaging a shaft.
- 6. The damper as in claim 1, wherein the flexible connecting member comprises an elastomeric material.
- 7. The damper as in claim 1 further comprising a discontinuity subject to detection by a sensor.
- 8. The damper as in claim 7, wherein the discontinuity comprises a gap between adjacent tabs.
- 9. A method of forming a crankshaft damper comprising:
forming a first ring by spinning a first annular disc supported in a rotating mandrel, moving a first roller radially inwardly against a side of the first disc displacing a portion of the first disc inwardly against a mandrel to form a hub, pressing a second roller radially inwardly against a first annular disc edge whereby a gathered portion of the first annular disc is formed, splitting the gathered portion by inward radial movement of a roller while simultaneously forming a lobe from the gathered portion, stretching the lobe in a radial direction by outward radial movement of a second roller while simultaneously supporting a portion of the gathered portion, thereby simultaneously forming a radially extending member substantially normal to an axis of rotation of the first ring; forming a plurality of tabs extending about a perimeter of the radially extending member; forming a second ring by spinning a second annular disc supported in a rotating mandrel, moving a first roller radially inwardly against a second annular disc edge whereby a gathered portion of the second annular disc is formed, pressing a roller having a profile against the gathered material whereby a profile is formed in a second ring outer surface; and connecting the first ring to the second ring by engaging a flexible connecting member between the first ring and the second ring.
- 10. The method as in claim 9, wherein the connecting member comprises an elastomeric material.
- 11. The method as in claim 9 further comprising forming a profile in the first ring outer surface and forming a profile in the second ring inner surface to cooperate with the first ring outer surface profile.
- 12. The method as in claim 10, comprising forming a multi-ribbed profile in the second ring outer surface.
- 13. The method as in claim 9 comprising stamping to form the tabs.
- 14. The method as in claim 9 comprising forming a gap in the tabs.
REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from U.S. provisional application serial No. 60/310,034 filed Aug. 3, 2001.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60310034 |
Aug 2001 |
US |