Patent ID: 7407018

Claim:
A power working machine comprising: a machine body; a prime mover provided on the machine body; a working unit provided on a front part of the machine body and driven by operation of the prime mover; a handle rotatably attached to a rear part of the machine body; a throttle lever provided on the handle in such a manner as to swing between a non-working position and a working position for adjusting an output power of the prime mover; a lock lever provided on the handle and pivotal into and out of engagement with the throttle lever to releasably lock the throttle lever in the non-working position; a locking mechanism disposed on the handle and lockable to a shaft section of the machine body at a predetermined angle, the locking mechanism being unlocked from the shaft section by slide movement towards a rear part of the handle; and an unlocking member that partly covers at least opposite sides of the throttle lever to render the throttle lever inoperable when the locking mechanism is unlocked from the shaft section, the unlocking member having cover portions that cover the opposite sides of the throttle lever, operation portions provided on respective ones of the cover portions and operable from left and right sides of the handle, and engagement portions that engage with lugs on the locking mechanism to effect rearward sliding movement of the locking mechanism in response to rearward sliding movement of the unlocking member.