Power hand tool
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United States of America Patent
Stats
-
Sep 15, 2009
Grant Date -
Mar 12, 2009
app pub date -
Nov 26, 2007
filing date -
Sep 11, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power hand tool includes a housing; an electric motor mounted in the housing for provide a rotary motion; a transmission gear set is mounted in the housing and connected with the electric motor; a torsion control device having a first rotary knob, which can adjust the maximum torsion output of the transmission gear set while being turned, and a plurality of first dents formed on an internal periphery thereof; an impact device having a second rotary knob, which can switch on or off an impact motion generated on the transmission gear set while being rotated, and a plurality of second dents formed on an internal periphery thereof; and a locating device having a holder fixed to the torsion control device and a locating member mounted to the holder, the locating member having two resilient portions, each of which has a convexity engaged with the associated first dents or second dents.
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