PROBLEM TO BE SOLVED: To provide a bush cutter whose cutter rotating at high speed is not chipped or broken by an obstacle such as a large stone or metal.SOLUTION: Pan type washers 3 and 4 are used and mounted on the upper and lower sides of a rotary cutter 1 through an elastic body 5 for impact absorption for mitigating impact applied to a mower pin 2. A metal edge-cutting and protecting guide is mounted, which has a ring-shaped inner diameter which is larger at least by 20 mm than an outer diameter of the rotary cutter.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】高速で回転する刃が大きい石や金属など障害物で欠けたり、破損する事のない刈払機を提供する。【解決手段】回転刃1の上、下に、皿型のワッシャ―3及び4を用い、さらに刈りピン2に加わる衝撃を緩和する衝撃吸収用の弾性体5を介して取り付けた。また回転刃の外径より少なくも20mm以上大きい、内径のリング状の金属製の際刈防護のガイドを取り付けた。【選択図】図2
