PROBLEM TO BE SOLVED: To provide a cutter attachment structure of a bush cutter which facilitates positioning of a cutter and also facilitates attachment of the cutter at a correct position without core displacement.SOLUTION: A guide protrusion 30 projecting on a cutter pressing member 25 side is arranged at an outer peripheral edge of an edge face on the cutter pressing member 25 side of a boss part 28 of a cutter receiving member 24. An outer peripheral side face of the guide protrusion 30 is a taper face 32 reducing a diameter toward a tip. Accordingly, the taper face 32 is easily recognized through an attachment hole 29 of a cutter 4 when the attachment hole 29 of the cutter 4 matches the boss part 28, thereby the cutter 4 can be positioned easily. The taper face 32 guides an inner peripheral face 31 forming the attachment hole 29 of the cutter 4 and thereby the cutter 4 can be attached at a correct position without core displacement easily.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】刃物の位置合わせが容易であると共に、刃物を芯ズレなく正位置に容易に組み付けることができる刈払機の刃物取付構造を提供する。【解決手段】刃物受け部材24のボス部28の刃物押え部材25側の端面の外周縁部に、刃物押え部材25側に突出する案内凸部30を設け、案内凸部30の外周側の面を、先端に行くに従い縮径するテーパー面32とする。これにより、テーパー面32が、ボス部28に対して刃物4の取付孔29を合わせる際に、刃物4の取付孔29越しに認識しやすく、刃物4の位置合わせが容易となる。また、テーパー面32が、刃物4の取付孔29を形成する内周面31の案内となり、刃物4を芯ズレなく正位置に容易に組み付けることができる。【選択図】図2
