Patent ID: 7847459

Claim:
A magneto generator comprising: a flywheel that has a circumference and rotates about an axis of rotation; a plurality of permanent magnets that are fixedly secured to an inner peripheral wall surface of said flywheel; a magnet positioning member made of a resin that is arranged at an inner side of said flywheel to position and fixedly secure said permanent magnets to said flywheel integrally therewith; a stator core that is arranged at an inner side of said permanent magnets and has a plurality of teeth protruding to a radially outer side; and magneto coils that are each formed of a conductor wound around said individual teeth; wherein said flywheel has a groove formed on its inner peripheral wall surface at an opening side thereof; and said magnet positioning member has a magnet coming-off preventing member formed at an opening side of said flywheel so as to cover end faces of said permanent magnets, and said magnet coming-off preventing member has a radially outwardly extending protrusion formed so as to be in axial engagement with said groove of said flywheel to prevent axial movement of said permanent magnets; wherein an inner wall surface of the magnet coming-off preventing member is formed radially outwardly compared to an inner wall surface of the permanent magnets, and wherein said protrusion engaging the groove is wedge-shaped.