Disc accommodating case

Claim 1

A disc accommodating case comprising a jacket having an opening at one end thereof for accommodating a disc recorded with an information signal within an internal space, and a lid member for closing the opening of the jacket accommodating the disc, said lid member comprising: a lid main body which fits within the opening of said jacket; a pair of engaging fingers provided on the right and left sides of said lid main body, for engaging with corresponding first depressions formed at the inner part of said jacket; metal leaf spring arm members respectively fixed to said lid main body and supporting said engaging fingers at respective tip ends thereof, said metal leaf spring members capable of being bent resiliently along the width direction of said lid member, said leaf spring arm members having bases at their respective ends opposite said tip ends; and said bases having rectangular plane configurations fixed to said lid main body, said bases having thicknesses smaller than the thickness of said lid main body, root parts of said metal leaf spring arm members being fixed to said bases to constitute engaging arm assemblies together with said bases, said engaging arm assemblies being symmetrical to the right and left with respect to a center plane along bending directions of said metal leaf spring arm members, said lid main body comprising second depressions provided in the vicinity of the right and left ends on the same surface thereof, said second depressions having rectangular contours corresponding to the rectangular plane configurations of said bases so that bases of said engaging arm assemblies closely fit into and become fixed with respect to said second depressions, and having depths of dimensions such that said engaging fingers lie on the same plane as said lid main body when said bases are fitted into said second depressions.