Swim fin with shark-like movement

摘要

Embodiments of the present invention include a swim fin, including a swivel motion thruster, a tailfin coupled with the swivel motion thruster, a spine rod hingeably coupled via a first hinged coupling with the swivel motion thruster at a first end of the spine rod, a first foot pocket coupled with the swivel motion thruster on one side of the first hinged coupling and a second foot pocket coupled with the swivel motion thruster on an opposite side of the first hinged coupling such that movement of the first foot pocket toward the tailfin results in an arcuate motion of the tailfin about the first hinged coupling away from the first foot pocket, and a belt coupled with a second end of the spine rod opposite the first end, wherein the belt is configured to frictionally fit to a human body.