Thrust generator and disk brake
US8770353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Mar 11, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18568
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball-and-ramp mechanism of a thrust generator includes a rotary ramp member and a rectilinear ramp member, each having a plurality of sloped grooves sloped along a circumferential direction and having an arcuate diametrical cross-section, and a spherical member interposed between the sloped grooves of the ramp members to transmit force from the rotary ramp member to the rectilinear ramp member. Each of the sloped grooves has regions varying in the curvature radius of the diametrical cross-section in a track area where the spherical member contacts the sloped groove. Accordingly, it is possible to improve the durability of the rotary ramp member and the rectilinear ramp member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.