| 摘要 |
An apparatus for warning rotation of a spindle for a working machine such as a wood working machine which gives a warning while a spindle continues to rotate by inertia even after a motor driver for a spindle motor for rotating the spindle is interrupted to assure the safety of operation on the working machine. The apparatus comprises warning means (28) for warning that the spindle (14) is rotating, rotation detecting means (23, 20; 34, 35, 36) for detecting rotation of the spindle (14) and continuously developing, while the spindle (14) is rotating, an electric signal independently of whether the motor driver (33) is operative or inoperative, and controlling means (29) for discriminating presence or absence of an electric signal from the rotation detecting means (23, 20; 34, 35, 36) and controlling the warning means (28) in accordance with a result of such discrimination. <IMAGE> |
