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:
May. 10, 1988
Filed:
May. 19, 1986
Shozo Ommori, Odawara, JP;
Kengo Oishi, Odawara, JP;
Fuji Photo Film Co., Ltd., , JP;
Abstract
A magnetic recording disk cartridge comprises a magnetic recording disk accomodated for rotation in a casing. The magnetic recording disk is provided with a center core having a central opening into which a spindle of a magnetic recording/reproducing system is inserted to be drivingly engaged therewith. The center core comprises a core block provided with the central opening and a pair of slits formed in the wall portion of the core block defining the central opening and spaced from each other by a predetermined distance; and a plate spring which extends across the central opening and the opposite end portions of which are fitted into the slits and held therein so that the plate spring can be resiliently deformed in a direction radial to the magnetic recording disk. When the spindle is fitted into the central opening, the plate spring is pushed by the spindle to be resiliently deformed, and the outer pheripheral surface of the spindle is urged radially inwardly by the resiliency of the plate spring so that the rotational axis of the spindle coincides with the central axis of the magnetic recording disk.