Patent ID: 6094326
Filing Date: 2000-07-25
Classification: G11B

Abstract:
A disc cartridge comprising:a casing formed with openings through which a recording/reproducing head and a drive shaft are insertable into said casing, said casing including a surface for rotatably receiving a disc medium thereon;a shutter for opening and closing said openings;said shutter including an upper plate, a lower plate and a connection portion for connecting said upper plate to said lower plate, whereby said shutter is formed in a substantially U-shaped configuration;a slider for sliding said shutter on said casing; anda spring for urging said shutter in a closing direction to close said openings;said slider including a first slider member which slides while being engaged with a first guide section provided on said casing, said first slider member including a first end and a second end, and a pair of second slider members which slide while being engaged with a second guide section provided on said casing and are arranged on said first and second ends of said first slider member so as to interpose said first slider member therebetween while being pressed against said slider by means of said spring;said connection portion being provided with a lug comprising an outwardly extending portion defining an outer surface and an inner space whereby a shutter operation member can abuttingly engage said outer surface of said lug, said lug including upper and lower surfaces corresponding to said upper and lower plates of said shutter, at least one of said upper and lower surfaces of said lug including mounting holes, and said first slider member including elastically deformable projections adapted to be fitted in said mounting holes of said lug.