Threaded nut means for a linear drive device
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United States of America Patent
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Sep 14, 2010
Grant Date -
Jul 6, 2006
app pub date -
Dec 21, 2005
filing date -
Dec 22, 2004
priority date (Note) -
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Abstract
A threaded nut is provided for a linear drive having a rotatable spindle. The threaded nut is provided with a main nut, wherein the main nut is intended for being arranged with its internal thread on the external thread of the spindle, and is intended to perform a translatory displacing motion during a rotary motion of the spindle. The threaded nut has, furthermore, a safety nut, which is intended not to mesh by its internal thread with the external thread of the spindle during the normal operation of the linear drive and to mesh with the thread of the spindle in case of failure of the main nut. To make possible simple mounting in case of such a threaded nut means and to reduce the risk for incorrect alignment, the main nut (11) has a first part and a second part. The two parts are located at spaced locations from one another and each part being provided with a threaded section (18a, 18b) of the main nut (11), wherein the safety nut (12) is intended to be arranged between the two threaded sections (18a, 18b).
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