| 摘要 |
PROBLEM TO BE SOLVED: To provide a floating swimming aid having functions of constantly positioning the body of a user swimming with the floating swimming aid in the center of the floating swimming aid, reducing a buoyancy pressure applied to the user from the float, and constantly turning upward the upper half body of the user. SOLUTION: A floating board with the smallest buoyancy in three floating boards with different buoyancies is laid in their center, the floating boards with buoyancy next larger than that are laid in its both sides, and the adjacent floating boards are connected by connecting materials respectively and formed into a floating raft so that the float with their buoyancies becoming larger from the center towards the both end parts is formed. The lengths of the connecting materials are set short in the floating board front part and long in the floating board rear part, or the buoyancies of the floating boards are constituted large in the front part and small in the rear part. COPYRIGHT: (C)2004,JPO
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