SYSTEM AND METHOD FOR CONFIGURING A POWER TOOL WITH AN IMPACT MECHANISM

Abstract: a power tool with an impact mechanism and that is controlled based on a drive angle from impacting. the power tool includes a housing, a brushless direct current (dc) motor within the housing, an impact mechanism, and an output drive device. the brushless dc motor includes a rotor coupled to a motor shaft to produce a rotational output. the impact mechanism includes a hammer coupled to the motor shaft, and an anvil that receives impacts from the hammer and drives an output device. the power tool further includes a position sensor that senses a position of the rotor and a controller coupled to the position sensor. the controller detects an impact of the impact mechanism, calculates a drive angle of the anvil caused by the impact based on output from the position sensor, and controls the brushless dc motor based on the drive angle.

Inventor(s): John S. Dey, IV, Jeffrey M. Wackwitz

CPC Classification: B25B23/1475 (TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING)

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