Key case, key head and key box

A system comprising a key and a key housing, wherein the housing shell (1) of the key housing comprises at least two walls between which, or in at least one of which, a space is formed for storing at least one key (4), characterized in that the key housing is provided with at least one key lock (4) transverse to the surface of the housing and at least one key lock (4) longitudinal to the surface of the key housing, which prevent the key (4) from falling out of the housing by itself and at least one element for facilitating the removal of the key (4) from the housing, wherein the head of the key (4) is unmodified or the head of the key is cut and pressed into a rigid cover (20) or is provided with a cap (24).

A key case, comprising a housing shell, wherein the shell (1) comprises at least two walls between which or in at least one of which a space is formed for storing at least one key (4), characterized in that means are provided for locking the key (4) longitudinally with the surface of the housing, the means comprising either (a) a flexible blade (7) disposed in the central wall (12) of the housing shell (1), the lower end (8) of which is provided in a groove (9) and the upper end (10) of which is provided with a slope (11), or (b) a protrusion (13) formed on an inner surface of a reverse wall (10) of the housing shell (1).

A key box, characterized in that it comprises at least two housings, the shell (1) of which comprises at least two walls, between which or in at least one of which a space is formed for storing at least one key (4), the housing being provided with at least one locking device to prevent the key (4) from falling out of the housing spontaneously, and the at least two housings being connected to each other.