| 摘要 |
PROBLEM TO BE SOLVED: To illuminate a machining part and to display the warning informing the abnormality of a motor by a portable power tool. SOLUTION: When abnormality detecting elements 26, 27, 28 detect the abnormality, a lighting fixture composed of a RGB-LED light emitting diode 17 executes the abnormality illumination display such as flickering by a microcomputer 30. In a normal time, all of light emitting diodes are driven for white illumination. |
