초록 ▼

In connection with a portable folding receptacle of wallet format, made from a plastic material and being especially suited as multi-purpose portfolio, it is proposed to connect two half-shells by means of an elastic, integrally formed back hinge comprising longitudinally extending ridges with inter

In connection with a portable folding receptacle of wallet format, made from a plastic material and being especially suited as multi-purpose portfolio, it is proposed to connect two half-shells by means of an elastic, integrally formed back hinge comprising longitudinally extending ridges with interposed film-joint hinge elements permitting smooth opening and closing of the receptacle. The receptacle may be equipped with folding inserts, in the manner of a book, or may be equipped in its interior with a ring-book mechanism.

대표청구항 ▼

[ What is claimed:] [1.] A portable, folding receptacle or box comprising:two cover elements, each of said cover elements having a front marginal edge, a rear marginal edge a first side marginal edge and a second side marginal edge, said first side, second side, and front marginal edges of both of s

[ What is claimed:] [1.] A portable, folding receptacle or box comprising:two cover elements, each of said cover elements having a front marginal edge, a rear marginal edge a first side marginal edge and a second side marginal edge, said first side, second side, and front marginal edges of both of said cover elements including an integrally formed marginal wall, said marginal walls being formed vertically from a horizontal plane of each of said cover elements, the two marginal walls engaging each other in the closed condition of the receptacle by means of projections and recesses, the marginal walls of the first and second side marginal edges of one cover element being terminated at their rear ends by said projections, said projections being semicircular in shape;mounting blocks mounted to inner surfaces of said protections;an elastic single-piece back hinge interconnecting the two cover elements at said rear marginal edges, said back hinge comprising a plurality of alternating ridges forming solid ribs and grooves extending parallel to said rear marginal edges, said grooves having base walls extending between pairs of ridges which are of substantially reduced thickness compared to the ridges' extension in a direction generally perpendicular to an adjacent base wall, thereby forming a film-joint hinge.