Cam sprocket and method for manufacturing the same
US8864612B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Aug 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49472
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cam sprocket according to the present invention includes a ring-shaped plate portion having external teeth along its outer circumference; a circular plate portion that is disposed at the radially inner region substantially parallel to the ring-shaped plate portion and at a level difference in axial direction to the ring-shaped plate portion, the circular plate portion being abuttable against one end face in axial direction of the cam shaft; and a tapered portion linking the circular plate portion to the ring-shaped portion at a radially intermediate region. The tapered portion is provided with a plurality of punched portions whose radially inner faces are provided with a partial circular arc shape so as to come into area contact with an outer circumferential surface at the one end face in axial direction of the cam shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.