Operational lever for bush cutter

An operational lever for a bush cutter (11) includes a handle (13) housed in a handle case (31), a throttle lever (32) pivotally mounted to the handle, and a lock lever (33) pivotally mounted to the handle. The operational lever further includes a torsion coil spring (35) which exerts a resilient force on the lock lever (33). The lock lever (33) is pivoted from an initial position to a pivoted position by an operator's palm. The throttle lever (32) is then pivoted to a half-pivoted position by operator's fingers. When the palm is moved a small distance away from the handle case (31) with the throttle lever (32) held in the half-pivoted position, the lock lever (33) is pivoted back towards the initial position by a resilient force of the spring (35). This causes a curved surface (33f) of a side protrusion portion (33e) of the lock lever to engage or abut on a side (32f) of a protrusion portion (32d) of the throttle lever. This arrangement is advantageous in that even when the operator takes her or his fingers off the throttle lever (32), the throttle lever (32) is locked by a friction force produced between the curved surface (33f) and the side (32f).