| 摘要 |
<p>[Problem] To provide a feature for further improving the stoppage of a piston in a pounding tool. [Solution] A nailing machine (100) is configured so as to have a compression cylinder (131), a compression piston (133), a crank mechanism (115), an electric motor (111), and a control device (109). When the compression piston (133) moves from top dead center, which is located on the nail-pounding side, to bottom dead center on the opposite side from top dead center, the control device (109) controls the electric motor (111) so as to drive a first brake for reducing the speed of the compression piston (133), and after driving the first brake, to drive a second brake for stopping the compression piston (133) at the bottom dead center. In addition, the piston deceleration rate per unit of time caused by driving the first brake is set so as to be greater than the piston deceleration rate per unit of time caused by driving the second brake.</p> |
