| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary cutter for a bush cutter, enabling rapid cutting and making the coiling of weeds and miscellaneous small trees around the rotary cutter difficult. SOLUTION: The rotary cutter is constituted as follows. Blade stands 3 protruded to the outside in the radius direction, and a recessed parts 6 recessed into the inside in the radius direction are alternately formed in the circumference direction of the outer periphery of a circular rest 2. Blades 4 and 5 are installed in the revolution surface side of each blade stand 3, and the position of the bottom face 6a of each recessed part 6 in the radius direction is regulated so as to be nearly equal position as the position of the base end G of each blade 4 or 5 in the radius direction. The lateral rake angle B1 of each blade 4 or 5 is regulated so as to be mutually reverse direction, and so as to be 30-50°C. COPYRIGHT: (C)2007,JPO&INPIT
|
