PROBLEM TO BE SOLVED: To provide a pruning machine which prevents deterioration in cutting performance of cutting blades.SOLUTION: A pruning machine includes a pair of upper and lower blades 51 and 61, where a plurality of cutting blades 53 and 63 are provided in a row on the sides of long parts 52 and 62, cutting a plant by reciprocating while keeping themselves in a sliding-contact state. Rake faces 53b and 63b are formed on cutting edge parts 53a and 63a of the cutting blades 53 and 63 so that a component force generated by cutting resistance occurring when cutting, which forces the cutting blades 53 and 63 to press each other, is smaller on the side of a blade end compared to on the side of a blade base.COPYRIGHT: (C)2014,JPO&INPIT【課題】切断刃の切断性能の低下を防止した刈り込み機を提供する。【解決手段】長尺部52,62の側方に複数の切断刃53,63が列設された上下一対のブレード51,61が摺接状態を保ちながら往復運動して草木の切断を行う刈込み機において、切断刃53,63の刃先部53a,63aには、切断時の切断抵抗により発生する切断刃53,63同士を押し付ける方向の分力が、刃元側に対して刃末側が小さくなるようにすくい面53b,63bが形成されている。【選択図】 図4
