Roller screw mechanism and associated manufacturing method
US10018257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Oct 14, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H25/2252
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A roller screw mechanism comprises a screw having an outer thread and a nut disposed around and coaxially with the screw. The nut comprises an inner thread. A plurality of rollers are disposed radially between the screw and the nut; each roller being provided with an outer thread engaged with the outer and inner threads of the screw and of the nut and with two outer gear teeth. The mechanism also comprises two synchronizing gear teeth that are each engaged with one of the gear teeth of the rollers. An outside diameter of each gear teeth of each roller is less than a diameter of a root of the thread of the roller. Each tooth of the gear teeth of the rollers comprises planar faces that engage with the synchronizing gear teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.