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:
Aug. 20, 2002
Filed:
Jul. 14, 1999
Hiroshi Meguro, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a disc cartridge, a shutter slidably attached on a shell can be prevented from being projected from a front end surface of the shell by means of a spring force exerted by a spring. The shutter ( ) includes first and second shutter plate portions ( and ) overlapped on upper and lower surfaces ( and ) of the shell ( ) and a linkage plate portion ( ) overlapped on the front end surface ( ) of the shell ( ). First and second slide guide projections ( and ) are installed on the second shutter plate portion ( ) and are inserted into first and second slide guide grooves ( and ) formed along the front end surface ( ) of the shell ( ). A difference in distance (L ) (L =L −L ) between a distance (L ) from an inner surface of the first slide guide projection ( ) to an outer surface of the linkage plate portion ( ) of the shutter ( ) and a distance L from the first slide guide projection ( ) to the front end surface ( ) of the shell ( ) is set to be smaller than the difference in distance (L ) (L =L −L ) between a distance (L ) from an inner surface of the second slide guide projection ( ) to the outer surface of the linkage plate portion ( ) of the shutter ( ) and a distance (L ) from the side surface ( ) of the second slide guide groove ( ) to the front end surface ( ) of the shell ( ).