Rack bar and method for production thereof
US8397597B2 · kind B2 · utility
2Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2011 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Oct 6, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12389
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rack bar and a method for production thereof. The rack bar is composed of a steel pipe (10) and an embedded metal core (14) placed therein. The steel pipe has rack teeth formed thereon by forging. The embedded metal core (14) is made of a metal softer than the steel pipe (10) and has its surface wave-shaped such that the bottom (20) is wide and the top (22) is narrow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.