| 摘要 |
PROBLEM TO BE SOLVED: To provide a mechanism for making jammed grass smoothly get out to lengthen the life of a clutch by solving the problem that during cutting with a bush cutter, grass cut down by a cutting blade is jammed between the top face of the cutting blade and the rear face of a safety cover top plate by driving rotation of the cutting blade.SOLUTION: A shaft is provided substantially parallel to a rotary surface of a cutting blade in a side view in a part between an operation rod 3 and a cover top plate part, and the cover top plate part and the peripheral edge plate part can be turned around the axes thereof roughly in the vertical direction of the rotary surface of the cutting blade to enlarge and reduce the interval between the rotary surface of the cutting blade and the rear face of the cover top plate and the interval between the knife edge of the cutting blade and the peripheral edge plate. When grass is jammed, a lever fitted to a handle part or the like is operated to separate the rear face of the cover top plate and the peripheral edge plate from the rotary surface of the cutting blade and the knife edge of the cutting blade so that the jammed grass is made to get out behind the rotation of the cutting blade. |
