Hitachi Koki Co., Ltd.

Shiniki Otsu

Tomomasa Nishikawa

Nobuhiro Takano

Kazutaka Iwata

Tetsuhiro Harada

According to an aspect of the invention, an oil pulse tool includes: a motor generating a driving force according to a driving voltage; an oil pulse unit driven by the driving force and generating a torque in a pulse-like shape when the motor passes a strike position on a shaft thereof; and an output shaft on which a front end tool is mounted, the output shaft being connected to the shaft, characterized in that the oil pulse tool further comprises driving adjusting means to control the driving voltage, the driving voltage is reduced during a given period including a timing when the torque is transmitted to the output shaft, and the reduced driving voltage is increased when the given period is finished.

Growing community of inventors

Naka, Japan

Shiniki Otsu