| 摘要 |
In the first form of the present invention, a swim fin includes a foot pocket, two flexible beams projecting forwardly therefrom, a blade attached to the forward end portions of the flexible beams and displaced from the foot pocket, the foot pocket, flexible beams and blade all being molded in one piece. A narrow rigid plate is attached to the blade and flexible beams at a point near the leading edge of the blade to connect the flexible beams to support the leading edge of the blade, and together with the part of the flexible beams attached to the blade, to provide a blade structure which is generally rigid during swimming but is flexible during walking and standing. In the second form of the present invention, the foot pocket and flexible beams are molded in one piece whereas the blade which is rigid is molded separately. The forward end portions of the flexible beams are attached to the rigid blade with fasteners.
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