Patent ID: 7377145

Claim:
A key case, comprising: a case having a top plate and a bottom plate, the top plate slidably mounted on two rails on the bottom plate and an opening defined in a front end of the case and located between the top plate and the bottom plate, a push member extending from an underside of the top plate and a space defined between the two rails; a key movably received in the space and having a blade portion, a first block connected to an end of the blade portion and a stop formed in the first block, the stop being engaged with the push member when the top plate is slid along the rails to move the blade portion out from the opening, the first block having two notches defined in two sides thereof and a first spring member having a first end connected to the first block, a second end of the first spring member connected with a second block which is fixed on the bottom plate, a second spring member having a first end connected to the second block and a second end of the second spring member connected to the top plate; and an operation unit including two push bars which are pivotably connected to two sides of the case and each push bar having a first protrusion extending toward the space, the first protrusions located close to the opening so as to be engaged with the notches of the key when the key is pushed out from the opening, each push bar having a push end and a second protrusion which is located between the first protrusion and the push end, the second protrusion being a fulcrum so that when pushing the push end, the first protrusion is disengaged from the notch.