Spindle drive
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jan 8, 2009
app pub date -
Jul 23, 2007
filing date -
Jul 22, 2006
priority date (Note) -
Expired
status (Latency Note)
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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.
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