| 摘要 |
PROBLEM TO BE SOLVED: To enhance the longitudinal bonding strength of a water walking tool board to prevent the breaking of the board. SOLUTION: In the structure of the board part of this water walking tool board part comprising a hollow part formed by putting a hard material such as plastics on the circumference of a foamed material and a gas sealed in the hollow part, extension parts having a dimension at least longer than 1/2 of the lateral dimension of the board are provided on the front and rear ends of the board middle part having a footrest along the longitudinal direction of the board. Floating bags to which gas can be injected are provided on the front and rear of the board middle part having the footrest. A footrest plate having a foot fixing means is provided on the footrest. A plurality of board constituting members is reinforced by a keel part.
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