Linear/rotary actuator and winding machine including same
US6081051A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear/rotary actuator capable of carrying out both linear motion and rotary motion either individually or concurrently as desired while controlling both motions as desired. A rotary driving motor includes a hollow shaft. When the rotary driving motor rotates a third nut fitted on a spline section of the rotary driving motor, an output shaft rotatably fitted on a linear shaft through bearings is rotated. The linear shaft 21 is provided thereon with a threaded section. A spline section and a first nut is threadedly fitted on the threaded section and a second nut kept stationary is fitted on the spline section. The first nut is rotated while being fixed in a hollow shaft of a linear driving motor. Rotation of the linear driving motor leads to rotation of the first nut, resulting in the linear shaft 21 being linearly moved in an axial direction thereof, so that the output shaft may be linearly moved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.