Ball ramp assembly with variable pitch of the ball grooves
US7806797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2006 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/343
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An axial setting device includes two discs which are centered on a common axis. One is axially supported and the other one is axially displaceable, and at least one is rotatingly drivable. The two discs on their end faces, each have a plurality of circumferential ball grooves. The ball grooves each comprise a depth which decreases in the same direction, and each pair of opposed ball grooves accommodates a ball. At least the ball grooves of one of the two discs, starting from the region of the greatest groove depth, comprise a first groove portion with a greater pitch and an adjoining second groove portion with a smaller pitch, wherein the first groove portion extends over a smaller circular-arch-shaped portion than the second groove portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.