Storage devices

Storage devices (1, 1', 1") are taught that comprises a base member (10), a storage member (20) movably disposed in a cavity of the base member (10) so as to move between a closed position and an open position, and a lock mechanism (30) having an operation unit (32) provided in the base member (10) and an engagement portion (24) provided in the storage member. The operation unit is disposed on a reverse side of the base member and includes a latch member (40) that can move between an advanced position and a retreated position in response to the closing and opening operation of the storage member (20). The latch member (40) is arranged and constructed to move to the advanced position so as to engage the engagement portion (24) of the storage member (20) only when the storage member (40) is in the closed position.