PROBLEM TO BE SOLVED : To provide a medicine box, always locked even after opening in order to prevent children from accidental injection.SOLUTION : If an inner box is simply pulled out of an outer box of a medicine box C, a locking part engages with a slit as coming out between a lock release part and the slit, which stops pulling out the inner box. The end part of the inner box is sealed by a covering part so that it is locked in a state in which medicine cannot be taken out. In order to pull the inner box out of the outer box, the locking of the inner box should be released by pushing down the lock release part of the outer box until the locking part is lowered below the opening of the outer box.SELECTED DRAWING : Figure 6COPYRIGHT : (C)2019, JPO&INPIT