| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary striking tool capable of preventing falling-off of a tool bit from an object after striking by switching motor control before/after the striking.SOLUTION: The rotary striking tool having a striking mechanism is characterized in that a control unit sets, when an operation mode is a high-speed mode, the driving duty ratio of a motor to a low-speed target duty Duty to suppress the rotation increase of the motor during an initial driving period (t1 to t3) from the start of motor driving until striking is detected by a striking detection part, and when a predetermined period of time passes, sets the driving duty ratio of the motor to a high-speed target duty Duty to increase motor rotation after the passage of the initial driving period.SELECTED DRAWING: Figure 7 |
