| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for controlling reversal of a blade of a bush cutter. <P>SOLUTION: The method functions by detecting a parameter of a motor with a control circuit and, when a user presses a reversal button, by causing the control circuit to control the motor not to reverse when the detected parameter, e.g., speed of the motor, is greater than or equal to a preset threshold and to control the motor to reversely rotate and drive the blade to reversely rotate when the detected parameter is less than the preset threshold. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
