Engine-driven work machine

An engine-driven work machine comprising a frame formed from a base frame and a pair of left and right side frames sharing left and right side sections of the base frame, a wheel axially supported on the base frame so that the wheel can rotate in the fore-and-aft direction of the frame, equipment, including an engine and a work machine driven thereby, supported on the base frame, and a moving handle provided on an end part in the fore-and-aft direction of the frame,

• wherein the moving handle is formed from a pair of left and right handle bars having a handle grip at the extremity, and a cross member integrally connecting middle parts of the handle bars to each other, and the two handle bars are mounted in upper parts of the side frames so that the two handle bars can pivot between a working position (A) in which the two handle bars protrude from the frame and a storage position (B) in which, with the handle grip facing downward, the handle bars in cooperation with the cross member function as a bumper, and
• wherein the moving handle is mounted on a handle bracket fixedly provided on an upper part of the frame so that the handle can pivot between the working position (A) in which the handle protrudes from the frame and the storage position (B) in which the handle grip faces downward, and a lock mechanism is provided between the handle bracket and the moving handle, the lock mechanism automatically locking the handle at the working position (A) when the handle is pivoted to the working position (A).