Roller screw mechanism with cage
US10584777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2015 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2257
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A roller screw mechanism has a screw provided with an outer thread, a nut surrounding and coaxial with the screw, the nut being provided with an inner thread, a plurality of rollers radially disposed between the screw and the nut and each provided with an outer thread engaging the outer and inner threads and with two outer gear teeth, and two synchronization gear teeth meshing with the gear teeth of the rollers. The mechanism further includes one retaining cage for the rollers including a plurality of pockets spaced apart one with another in the circumferential direction. At least the outer thread of each roller is located inside the associated pocket of the cage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.