MAGNETO-GENERATOR

PROBLEM TO BE SOLVED: To provide a magneto-generator which can adjust the rotation balance of a rotor by using band-shaped parts arranged between protrusions formed at a rotor yoke. SOLUTION: In the magneto-generator 1 including a stator 2 fixed to an engine and the rotor 3 which includes a rotor yoke 4 connected to a crank shaft 101 of the engine and rotates around the stator 2, the rotation balance of the rotor 3 is adjusted by a balance adjusting hole 12 formed at the bottom face 4a of the rotor yoke 4, and by the second band-shaped part 4h formed between the first protrusion 13a and the second protrusion 13b which are formed at the rotor yoke 4. The balance adjusting hole 12 can easily be formed at the bottom face 4a of the rotor yoke 4 by properly changing the height H2 of the second band-shaped part 4h, and thus the rotor 3 improved in the rotation balance can easily be manufactured. COPYRIGHT: (C)2010,JPO&INPIT