| 摘要 |
A mower unit (2) includes: first to third rotating blades (21, 22, 23) and, f irst to third f ront guides (31, 32, 33) which are formed along each rotational locus of each blade, wherein each guide is disposed at a fore side of the rotational locus of each blade (21,22,23), and a lower end position of a part of each guide (31L-31a, 32b-32a, 33b-33a) is constructed more highly than a tip position of each blade, the part of each guide corresponding to a first region that is a part of the rotational locus, which exists within such a range from a position where a tip of each blade moves in a progressing direction of the mower unit, to another position where the tip moves in an orthogonal direction which intersects orthogonally with the progressing direction of the mower unit, and each guide is constructed so that a height of the lower end position of the part of each guide becomes low gradually along a rotational direction of each blade. |
