Patent ID: 7159322
Filing Date: 2007-01-09
Classification: A01G,Y10T

Abstract:
1. A power working machine comprising: a machine body having a front portion, a rear portion, and a shaft section extending from the rear portion; a drive source mounted substantially centrally on the machine body; trimming blades attached to the front portion of the machine body and drivable by the drive source; an operating handle rotatably mounted on the shaft section and disposed on the rear portion of the machine body for gripping by a human operator; a throttle lever mounted on the operating handle for pivotal movement between a non-operating position and an operating position for adiusting an output of the drive source; and a throttle lock lever connected to the operating handle for disabling the pivotal movement of the throttle lever in a locking position of the throttle lock lever; wherein the operating handle comprises a handle body having a front end portion connected to the rear portion of the machine body, a lock mechanism connected to the handle body for locking the operating handle at a desired rotational position relative to the machine body, and an operation lever having an operation portion projecting inwardly from a rear end portion of the handle body and operable by the human operator for unlocking the lock mechanism to thereby permit rotational movement of the operating handle and, simultaneously with the unlocking of the lock mechanism, for placing the throttle lock lever in the locking position thereof to disable the pivotal movement of the throttle lever.