| 摘要 |
<p>Swimming flipper including a shoe portion (1) and a blade portion (2), two ribbings (102) being provided along the outer lateral rims of said flipper, said ribbings (2) being symmetrical to the plane of said blade portion (2) and extending along a substantial portion of said shoe (1) with a decreasing height towards the free end of said blade portion (2); two carvings (112, 122) are provided on each of said ribbings (102) near the shoe portion (1) of said flipper, substantially V-shaped, above and below the plane of the blade portion (2), placed at a suitable distance one from the other, arranged so as to create two bending lines of the plane of said blade (2), and contrast means (202, 302; 402) for the bending movement of said blade (2) being provided on the upper surface of said blade portion (2). <IMAGE></p> |
