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