| 摘要 |
Disclosed herein are swim fins having a length corresponding to about one and half times of a shoe length thereof. The swim fin comprises a silicone rubber shoe ( 1 ) and a hooked short plastic fin panel ( 2 ), which are formed by compression molding. In order to prevent a flow of water passing over the swim fin from being rapidly dispersed laterally, the fin panel ( 2 ) of the swim fin is bent downwardly by an angle of 45 to form a hooked end portion. The hooked end portion of the fin panel ( 2 ) is blocked at both sides thereof, and formed with an air/water circulation slot ( 7 ) at the respective blocked sides. Such a swim fin can increase a transmission effect of kicking motion energy when it draws water and push the drawn water backward. Especially, the swim fin generates a buoyancy propulsive force during butterfly stroke, thereby enabling the swimmer's body to easily rise to the water's surface.
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