| 摘要 |
PURPOSE: To perform manual operation and motor-driven operation with a simple structure by rotating a drive rod by a motor or the manual operation, longitudinally moving a second moving unit via an engaging part, and longitudinally moving a first unit together with an electric equipment by oscillating a cam plate engaged with the second unit. CONSTITUTION: When an air circuit breaker 1 is moved to a connecting position by a manual operation, a handle shutter 28 is raised, a drawing handle is inserted from a handle insertion hole formed at the lower front surface, and engaged with the front end of a drive rod 5. On the other hand, the output shaft of a motor 18 is coupled to the rod 5 by spur gears 19, 21, a moving plate 23 is driven at the rear end of the rod 5, and a cam plate 9 is driven by the plate 23. Thus, the insertion and drawing of the circuit breaker by the motor-driven operation and the insertion and drawing of the breaker by the manual operation can be safely conducted by a simple mechanism. |
