| 摘要 |
A lawn mower blade or the like consisting of a rectangular elongated and flattened plate ( 2 ) including in its center a bore ( 3 ) bordered on either side with holes ( 4 ) for its being fixed to a rotating drive shaft, the blade having a leading edge ( 7 ), a trailing edge ( 8 ) and a raised part ( 9 ) located proximate each end of the blade, while each leading edge ( 1 ) and trailing edge ( 8 ) has, relative to a horizontal plane containing the plate ( 2 ), a chamfered profile ( 6 ) which is provided with an angle (beta) ranging between 0 and 30 degrees and the chamfered profile ( 6 ) includes a tapered terminal tip ( 10 ) whose land thickness d ranges between 0.1 and 0.5 millimeters.
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