Key case for an ignition key

A key case for holding a key, the key having a head portion via which the key may be gripped by a user and a blade portion which is insertable into a lock, said key case comprising a body portion having a wall which surrounds an interior space, a longitudinal axis, an open end traversed by the longitudinal axis and two spaced arms that extend parallel to said longitudinal axis;

• a holder plate for retaining the key in a manner to prevent relative between the key and said holder plate;
• pivot means supporting said holder plate on said body portion for movement between a first position in which the key blade extends parallel to said longitudinal axis, and a second position in which said open end is uncovered said holder plate being constructed, and coupled to said body portion, for assuring rotation of the key as a unit with said body portion about the longitudinal axis when said holder plate is in the first position, said holder plate having two spaced arms that extend parallel to one another and that are connected to said two spaced arms of said body portion by said pivot means;
• and a blocking device associated with said pivot means for securing said holder plate in the first position, wherein said blocking device comprises a locking pin movable into a blocking position for engaging one arm of said holder plate to secure said holder plate in the first position and said locking pin has:
• a detent portion which engages said one arm when said locking pin is in said blocking position;
• and an outwardly directed axial portion which is in line with said one arm when said pin is moved away from said blocking position, said axial portion being dimensioned to be out of contact with said one arm to allow said one arm to pivot to said second position.