< Topic >It is superior in operating efficiency, as there are no times when the mud and the like comes in contact with the installation bolt of the base it offers the tip/chip saw for the Brush Cutter payment machine which is superior in disconnection power.SolutionsIt forms the surface 3a is even in the center section of knife blade 1 body 3 briefly, installs in the center of the surface and 3a it Perforating facilities does the hole 2. Briefly on the bottom of body 3 the plane view forms orbicular salient 4 in the relatively big earl surface, makes salient continue 4 and forms the tilt slant face 5 which is directed to the outside upper part. The time tune being able to point, in horizontal direction it designates the top of tilt slant face 5 as rim flat section 6, it forms the many tooth profile junction tip/chip 7 to the rim edge of rim flat section 6. Briefly as for the surface of the surface 3of a body 3 and rim flat section 6 it is desirable to be located with respect to same plane.< Choice figure >Drawing 1【課題】作業性に優れ、底面の取付けボルトに泥などが付着することがないとともに切断力に優れた刈払い機用チップソーを提供する。【解決手段】刃板1の中央部に上面3aが平坦な短円筒部3を形成し、上面3aの中心部に取付け孔2を穿設する。短円筒部3の下端に比較的大きなアール面で平面視が円形の突出部4を形成し、突出部4に連続させて外上方に向けた傾斜面5を形成する。傾斜面5の上端は水平方向に折曲させて外周平板部6とし、外周平板部6の外周縁にチップ7を接合する多数の歯型を形成する。短円筒部3の上面3aと外周平板部6の上面は同一平面上に位置させるのが好ましい。【選択図】図1
