Patent ID: 7901260

Claim:
A swimming fin having a blade extending from a shoe open at a rear side thereof and a rear heel strap connected to sides of the shoe by at least one buckle, the buckle comprising a base plate integral with the shoe, a buckle arm joined with the strap so as to allow adjustment of the strap's tension, an intermediate lever connected pivotally both to the base plate and the arm, a hand controlled lock member for joining one end of the lever to the base plate so as to close the buckle, and an articulation member joining another end of the lever to the base plate so as to achieve reciprocal engagement with, and pivotal connection between, the other end of the lever and the base plate, while allowing complete separation of the lever from the base plate in a direction opposite to that of tensioning of the strap, whereby, upon release of the lock member and disengagement of the articulation member from the base plate, the lever separates completely from the base plate, thereby opening the buckle, and whereby, upon rotating the arm relative to the lever such that the lock member is in a closed position and the lever is secured to the base plate, closing of the buckle is achieved.