Case for holding flat articles

Claim 1

In a case for holding flat articles, comprising a boxlike body, a cover, a first hinge connecting said cover to said body on a first hinge axis, said cover having a rear edge, which is parallel to and disposed adjacent to said first hinge axis, said first hinge axis being spaced from said rear edge by a distance which is approximately as large as the height of said body so that said box is adapted to be opened by an upward movement of said cover about said first hinge axis, a lid, which is disposed on the inside of said cover and defines a compartment with said cover and is movable relative to said cover to a position in which said compartment is closed, and a second hinge, which is disposed at said rear edge and connects said lid to said cover on an axis which is parallel to said first hinge axis, the improvement residing in that said body is provided with two cam tracks, which are spaced apart along said axes and face opposite sides of said lid, each of said cam tracks has a circular portion, which corresponds to an arc of a circle that is centered on said first hinge axis, and a cam track end portion, which succeeds said circular portion in the direction of said upward movement and deviates outwardly from said circle, and said lid is provided with two cam follower pins, which protrude from said lid in mutually opposite lateral directions and each of which cooperates with one of said cam tracks.