| 摘要 |
PURPOSE: A rotary blade and a small-size electric apparatus having the same are provided to sharply cut an object caught in blade holes because small blades inclined to the axial line of the center of rotation. CONSTITUTION: A rotary blade(11) comprises a blade body(20) and a blade holder(21) which supports the blade body. The blade body includes a group of rib-shaped small blades(24,25) and a group of blade holes(26). Each small blade comprises an outer cutting face(44), an inner non-cutting face(45), a pair of side portions(46,47) which are formed between the outer cutting face and the inner non-cutting face, a cutting blade(48) which is formed above the outer cutting face in the rotating direction, and a relief edge which is formed under the outer cutting face in the rotating direction. The width center of the inner non-cutting face is located obliquely under the width center of the outer cutting face so that the angle(&thgr;1) of the cutting blade is formed smaller than the angle of the relief edge. |
