Screwing Tool And Method For Controlling The Tightening Angle Of Screwed Joints
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United States of America Patent
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Issued Date -
Jun 4, 2009
app pub date -
Dec 4, 2008
filing date -
Dec 4, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention proposes a method for controlling the tightening angle of screwed joints when tightening is effected using a hand-held screwing tool, wherein the torque is monitored until a predefined threshold value is reached, the angle of rotation is measured from the point the threshold value has been reached, the relative rotation of the screwing tool relative to the screwed joint is measured from the point the threshold value has been reached, and the screwing tool is switched off when a predetermined angle of rotation is reached, taking into account the relative angle of rotation of the screwing tool relative to the screwed joint as a corrective value.
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