Spindle drive
US8430446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2007 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Feb 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18704
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spindle drive for a movable component includes a threaded spindle, which can be driven in rotation about a rotational axis by a reversible drive. A spindle nut is mounted nonrotatably on the spindle. By means of the spindle nut, a transmission element connected to the movable component can be driven axially with respect to the spindle axis. The spindle nut can be connected to and disconnected from the transmission element by a connecting device. A nut position sensor detects the position of the spindle nut and a component sensor detects the axial position of the transmission element. If it is concluded that there is plausibility between the signals of the nut position sensor and the component sensor, the spindle nut can be connected to the transmission element by the connecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.