An impact tool including: a motor; a hammer connected to the motor; and an anvil struck by the hammer by driving the motor alternately in a normal rotation and a reverse rotation, wherein a magnitude of a fastening torque by the anvil is calculated in accordance with a current value of a current supplied to the motor immediately after the striking.
申请公布号
US2012318550(A1)
申请公布日期
2012.12.20
申请号
US201113579846
申请日期
2011.03.11
申请人
TANIMOTO HIDEYUKI;TAKANO NOBUHIRO;NISHIKAWA TOMOMASA;IWATA KAZUTAKA;MASHIKO HIRONORI;YAMAGUCHI HAYATO;HITACHI KOKI CO., LTD.
