According to the present invention, since the central part of the front wall portion, with which the grass clippings collide, has a small radius of curvature, the grass clippings are diverted by the central part having {HEAD ~ the small radius} of {TAIL ~ curvature} so as to flow along the right and left arcuate portions 
According to the present invention , since the central part of the front wall portion , with which the grass clippings collide , has a small radius of curvature , the grass clippings are diverted by the central part having { HEAD ~ the small radius } of { TAIL ~ curvature } so as to flow along the right and left arcuate portions
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH