ROTARY BLADE FOR BRUSHCUTTER

• Main Author: KIHARA JUNJI
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2016
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; FISHING; FORESTRY; HARVESTING; HUMAN NECESSITIES; HUNTING; MOWING; TRAPPING

PROBLEM TO BE SOLVED: To provide a rotary blade for a brushcutter in which a protective cutting blade and a brushcutter cutting blade positioned inwardly from a rotation trajectory of the protective cutting blade are alternately disposed on an outer peripheral edge of the rotary blade for the brushcutter, and thereby obstacles such as a pebble or concrete are flipped by the protective cutting blade and the brushcutter cutting blade is protected.SOLUTION: A rotary blade for a brushcutter comprises a protective cutting blade 8 forming a protection blade shape 4 on an outer peripheral edge 2 of a circular flat plate and fixing a cutting blade 6 in the front end of the protection blade shape 4, and a brushcutter cutting blade 12 forming a brushcutter blade shape 10 provided with steps inwardly from the rotation trajectory of the protection blade shape tip on the outer peripheral edge 2 of the circular flat plate and fixing the cutting blade 6 in the front end of the brushcutter blade shape 10. The protective cutting blade 8 and the brushcutter cutting blade 12 are alternately disposed, and also two or more protective cutting blades 8 and two or more brushcutter cutting blades 12 are alternately disposed. Further, the protective cutting blade 8 and an uneven brushcutter cutting blade 14 are alternately disposed.SELECTED DRAWING: Figure 1 【課題】 刈払機用回転刃の外周縁に防護刈刃と防護刈刃の回転軌跡より内方向に位置する刈払い刈刃とを交互に配設することにより、小石やコンクリートなどの障害物を防護刈刃が弾いて刈払い刈刃を防護するようにした、刈払機用回転刃に関するものである。【解決手段】円形状の平板の外周縁２に防護刃形４を形成し、該防護刃形４の前端部に刈刃６を固着してなる防護刈刃８と、円形状の平板の外周縁２に刈払い刃形１０を防護刃形先端の回転軌跡より内方向に段差を設けて形成し、該刈払い刃形１０の前端部に刈刃６を固着してなる刈払い刈刃１２で構成し、防護刈刃８及び刈払い刈刃１２を交互に配設するだけでなく、複数の防護刈刃８及び複数の刈払い刈刃１２を交互に配設する。さらに防護刈刃８及び段違い刈払い刈刃１４を交互に配設する。【選択図】図１