Shutter for disk cartridge and method for producing same
AssigneeSony Corporation
InventorKenji Takahashi
Life of this patent
Estimating the term…
Abstract
A shutter for a disk cartridge and the method for producing the shutter are provided wherein the shutter is movably attached to a cartridge and has an opening or aperture for exposing at least a portion of the signal recording surface of the disk. The shutter includes cover plates which open or close the aperture and a connecting plate interconnecting these cover plates. A coating is applied to the surfaces of the cover plates. The coating enhances the reflectivity of the cover plates such that impairment of the appearance and corrosion resulting from flaws and contamination can be prevented.
Claims7
A recording/reproducing apparatus having a disk cartridge accommodating a disk and including apertures for exposing at least a portion of a signal recording surface of said disk, and a metal shutter movably attached to said cartridge and comprising a pair of cover plates adapted for selectively opening and closing said apparatus and having outer surfaces facing away from said cartridge, a connecting plate interconnecting said cover plates, and a coating which increases the reflectivity of said shutter and which is applied to substantially all of said outer surfaces of said cover plates for making less prominent to view fingerprints formed on said metal shutter.
A method for manufacturing a metal shutter for a disk cartridge accommodating a disk and having apertures for exposing at least a portion of a signal recording surface of said disk, said shutter being movably mounted on said cartridge and comprising a pair of cover plates for selectively opening and closing said apertures and a connecting plate interconnecting said cover plates, said method comprising:
- applying on substantially all of one side of a metal plate material a coating which increases the reflectivity of said material;
- punching said metal plate material to form a plate piece in the configuration of said shutter;
- and
- bending the plate piece to form said cover plates and the connecting plate with said coating at outer surfaces thereof facing away from the disk cartridge for making less prominent to view fingerprints formed on said metal shutter.
A method for manufacturing a flat configuration metal shutter for a disk cartridge accommodating a disk and having apertures for exposing at least a portion of a signal recording surface of said disk, said shutter being movably mounted on said cartridge and comprising a pair of cover plates selectively opening and closing said apertures and a connecting plate interconnecting said cover plates, said method comprising:
- punching a metal plate material to form therefrom a metal plate piece in the flat configuration of said shutter;
- bending the flat metal plate piece so that outer lateral side portions thereof form said cover plates and the remainder of said flat metal plate piece forms said connecting plate;
- applying to substantially all of the outwardly facing surfaces of said cover plates a coating which increases the reflectivity of said metal plate material for making less prominent to view fingerprints formed on said metal shutter.
A metal shutter movably attached to a disk cartridge having apertures for exposing a disk in said cartridge, said shutter comprising a pair of metal cover plates having portions thereof adapted for selectively opening and closing the apertures and a metal connecting plate interconnecting said cover plates, said cover plates having outer surfaces facing away from said disk cartridge, and a coating applied to substantially all of said outer surfaces of said cover plates and increasing the reflectivity of said outer surfaces for making less prominent to view fingerprints formed on said metal shutter.
Dependencies are inferred from the claim text.