Ball screw device
US9664268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Feb 15, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H25/2204
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball screw device includes a ball circulation part having a ball circulation path. The ball circulation part is formed by combining a first split body and a second split body. The first split body has a fixing section fixed to an outer surface of a nut member. The second split body has a pair of leg sections configured to scoop up balls moving along a ball load rolling path and return the balls to the ball load rolling path, a connecting section configured to connect the pair of leg sections and disposed between the first split body and the nut member, and a pair of shoulder sections facing side surfaces of the first split body in two directions so as to sandwich the first split body between the pair of shoulder sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.