Drive device
US8508170B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2010 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Nov 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19828
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A driving device for a hatch in a vehicle, with a housing tube connected to a base part or to a movable structural component part, a protective tube connected to the movable structural component part or to the base part, a spindle drive having a threaded spindle and a spindle nut arranged on the threaded spindle by which the housing tube and the protective tube are movable axially relative to one another. A rotary drive drives the spindle drive in rotation includes at least one electric motor. The driving device has a safety circuit that causes a braking effect on the rotary drive when the rotary drive is deactivated and when extraneous forces are introduced into the driving device from the outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.