Roller screw and roller screw roller arranging method
US6481305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Feb 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19758
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a roller screw, a plurality of rollers 16 interposed between a nut member 14 and a screw shaft 12 are composed of a forward-motion load roller group 17, the rollers 16 of which are arranged in such a manner that the center lines thereof are set at a given angle &agr; with respect to the center line of the screw shaft 12, and backward-motion load roller group 18, the rollers 16 of which are arranged in such a manner that the center lines thereof are set at an angle &bgr;, which is different from the angle &agr;, with respect to the center line of the screw shaft 12; and, the forward-motion load roller group 17 and backward-motion load roller group 18 are disposed such that they are separated from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.