Rack and pinion assembly
US5117705A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1991 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | May 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1967
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The assembly comprises a rack (2) and a pinion (1) each having an axis of symmetry (7, 8) perpendicular to each other in their transversal section. The rack (2) is located in a chamber (6) provided within a rigid body (5), this chamber (6) having a partly cylindrical inner wall (9), the axis of symmetry of the chamber (6) being merged into the rack axis (8). The track (2) includes a front face engaged with the pinion (1) and a rear face opposite the front face, this rear face comprising two lateral tapered sides (15) converging toward the rack axis (8) and an extending rib (13) having flat lateral sides (17) parallel to the rack axis. Within the rigid body (5), is provided a pair of members (31, 32) disposed symmetrically with respect to the rack axis (8), each member (31, 32) being rotatively slideable along the cylindrical inner wall (9), each of the members engaging one of the lateral tapered sides (15) at about one point and one of the lateral flat sides (17) at about one point, and further including a spring (4) located between ends of the members (31, 32) and urging the ends in opposite directions in such a way that the members (31, 32) bear on the rib (13) to generate an ant…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.