Patent ID: 6891295

Claim:
A flywheel magneto generator, comprising: a magneto rotor, which has a press formed cylindrical flywheel and a magnet fixed to an outer circumferential side of a peripheral wall portion of the flywheel; and a stator, which is constructed by winding a generating coil around a core having a magnetic pole portion opposed to the outer circumference of the peripheral wall portion of the flywheel and a magnetic pole of said magnet via a gap; wherein there is provided a through hole which pierces through said peripheral wall portion of said flywheel in a radial direction of the peripheral wall portion, a yoke plate provided so as to block one end of said through hole opened on an inner circumferential side of the peripheral wall portion of said flywheel is arranged on a inner circumferential side of said peripheral wall portion, and said magnet is arranged within said through hole, and is supported on said yoke plate, one magnetic pole face of said magnet being opposed to said yoke plate.