POWER TOOL
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United States of America Patent
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Issued Date -
May 21, 2015
app pub date -
May 20, 2013
filing date -
Jun 5, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A power tool of one aspect for tightening a screw to a tightening-target-object is provided with a motor as a drive force. A motor controlling device controls the motor so as to make rotational frequency of the motor in accordance with an input operation received by an input-operation receiving unit. A first setting unit sets a maximum rotational frequency to a given first maximum rotational frequency when the motor is initiated. If the power tool clears a given condition for increasing rotational frequency after the motor is initiated, a second setting unit sets the maximum rotational frequency to a given second maximum rotational frequency that is larger than the first maximum rotational frequency.
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