Patent ID: 7337546

Claim:
A foldable knife, comprising a blade ( 1 ), a knife head ( 2 ) for installing the blade ( 1 ) thereon and a handle ( 3 ) adjoining the knife head ( 2 ), characterized in that: the knife head ( 2 ) has a movable part ( 4 ) and a locking part ( 5 ), the locking part ( 5 ) has two ends, one end is rotably fastened by a bolt ( 6 ) to the knife head ( 2 ) and another, a free end, has a catch ( 7 ), the blade ( 1 ) has a notch ( 8 ) on an edge opposite to a cutting edge, and the catch ( 7 ) corresponds to the notch ( 8 ), wherein the movable part ( 4 ) forces the catch ( 7 ) of the locking part ( 5 ) to engage with the notch ( 8 ) of the blade ( 1 ) so as to secure the blade ( 1 ) onto the knife head ( 2 ) when the movable part ( 4 ) is pushed away from the handle ( 3 ), and releases the locking part ( 5 ) so that the catch ( 7 ) and the notch ( 8 ) can be separated when the movable part ( 4 ) is pushed toward the handle ( 3 ); wherein the movable part is at least partially extended over the locking part when the catch of the locking part is engaged with the notch of the blade.