| 主权项 |
1. A rotary impact tool comprising:
a motor; an impact mechanism comprising:
a hammer configured to rotate by a rotational force of the motor;an anvil configured to rotate by receiving a rotational force of the hammer; andan attachment portion configured to attach a tool element to the anvil, the impact mechanism being configured such that, when an external torque of a specified value or greater is applied to the anvil, the hammer leaves the anvil and rotates idly to impact the anvil in a rotational direction; an impact detection unit configured to detect an impact to the anvil by the hammer; a fluctuation width detection unit configured to detect, when an impact is detected by the impact detection unit, a fluctuation width of a physical quantity that fluctuates due to the impact; and a control unit configured to control driving of the motor, the control unit controlling, when an impact is detected by the impact detection unit after a start of the driving of the motor, the driving of the motor according to the fluctuation width detected by the fluctuation width detection unit. |
