The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 1978
Filed:
Jun. 22, 1977
Hitachi, Ltd., , JP;
Abstract
A rotor structure for a magneto generator is disclosed which comprises a yoke of cup-like shape consisting of a cylindrical wall and a side wall extending from one end of the cylindrical wall, a plurality of magnets provided by permanent magnets disposed on the inner surface of the cylindrical wall of the yoke in a relation spaced apart by a predetermined distance along the circumference of the cylindrical wall. The magnets are maintained in the predetermined positions by a pair of spaced annular holding plates having respective surfaces facing each other to make area contact respectively with and sandwich the magnets in a direction of the axis of the yoke, and a cylindrical holding plate acting to press the magnets against the inner surface of the cylindrical wall of the yoke by making area contact with the inner surfaces of the magnets.