Variable ratio steering mechanism
US4898043A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Oct 4, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19726
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Variable ratio steering mechanism comprising a body in which is rotatably mounted an input shaft, a drive shaft having a longitudinal axis, and coupled to the input shaft so as to be rotatable therewith, an output member slidably mounted in the body, a screw mechanism connecting the drive shaft and the output member so that rotation of the drive shaft produces a corresponding displacement of the output member in the body, characterized in that the drive shaft is axially slidable with respect to the input shaft, the steering mechanism further comprising a displacement mechanism to selectively displace the drive shaft axially with respect to the input shaft, the displacement mechanism comprising a screw connection between the drive member mounted in the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.