Rack and pinion gear
US4815552A · kind A · utility
5Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Sep 17, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A center take of power assisted steering arrangement comprises a rack and pinion in which the rack is constrained radially in a pressure fluid cylinder at two positions and has a floating piston at one end. One constraint comprises a bearing disposed at the point where rack and pinion mesh. With this arrangement meshing of the rack and pinion is not dependent on rack stiffness, manufacturing tolerances are compensated for and the effects of service loads are minimized, while allowing equal area pistons at opposite end of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.