| 摘要 |
<p>In a power working machine (10) where output power of a drive source (12) is adjustable by a throttle lever (36) pivotally movable between a non-operating position and an operating position, an operating handle (15), generally in the shape of a closed loop, is rotatably mounted on a shaft section (32) extending from a machine body (11). Throttle lock lever (37) is provided on the operating handle (15) for disabling the pivotal movement of the throttle lever (36) when necessary. The operating handle (15) includes a lock mechanism (82) for locking the handle (15) at a desired rotational position, and an operation lever (81) for unlocking the lock mechanism (82) to permit rotational movement of the handle (15) and simultaneously locking the throttle lock lever (37). Simultaneously with the unlocking of the lock mechanism (82), the operation lever (81) may lock the throttle lever (36) in the non-operating position. <IMAGE></p> |
