PROBLEM TO BE SOLVED: To provide a shearing machine that can achieve preventing from generation of noise at the time of shearing and preventing from breakage while suppressing enlargement in size.SOLUTION: The present invention comprises: a rotating member 13 freely rotatable with respect to a gear 12, for externally fitting the driven and rotated gear 12 eccentric cams 14, 15 for reciprocating the blade connecting pins 16, 16 for rotating the eccentric cams 14 and 15 elastic members 33, 33 interposed between the outer peripheral surfaces of the connecting pins 16, 16 and the through holes 13G, 13G of the rotating member 13 and a clutch mechanism 19 for intermittently transmitting the power transmission from the gear 12 to the rotating member 13 the clutch mechanism 19 comprising the rotating member 13, a plate spring 24 which forces the gear 12 on the rotating member 13, and a lock member 25 which presses the plate spring 24 to the gear 12 side, the gear 12 being provided with a countersunk portion 27 formed in a through hole 12K to be fitted over the rotating member 13, and the plate spring 24 being entered into the countersunk portion completely.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2018,JPO&INPIT【課題】刈込み作業時の騒音発生の防止と破損防止とを大型化を抑制しながら実現することができる刈込み機を提供する。【解決手段】駆動回転されるギヤ12を外嵌させる、ギヤ12に対して回転自在な回転部材13と、ブレードを往復運動させる偏心カム14,15と、偏心カム14,15を回転運動させるための連結ピン16,16と、連結ピン16,16の外周面と回転部材13の貫通孔13G,13Gとの間に介在される弾性部材33,33と、ギヤ12から回転部材13への動力伝達を断続するためのクラッチ機構19と、を備え、クラッチ機構19は、回転部材13と、ギヤ12を回転部材13へ押し付ける皿バネ24と、皿バネ24をギヤ12側へ押圧するロック部材25と、を備え、ギヤ12には、回転部材13に外嵌させる貫通孔12Kに座繰り部27が形成されており、座繰り部に皿バネ24が完全に入り込んでいる。【選択図】図5
