Method for manufacturing multi-stage gear, and multi-stage gear
US9273771B2 · kind B2 · utility
0Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2011 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Aug 10, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1987
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a method for manufacturing a multi-stage gear in which no gap is formed between a small-diameter gear and a large-diameter gear, there are included a first step of forming the small-diameter gear on an outer peripheral surface of a workpiece, a second step of forming a large-diameter gear part by plastically deforming an end portion of the workpiece to increase the diameter thereof, and a third step of forming the large-diameter gear by cutting the large-diameter gear part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.