| 摘要 |
PROBLEM TO BE SOLVED: To attain contribution to eradication of water damage accident since wide-age persons can safely perform on-water sliding on a lake surface and a river near them by mounting of a compact portable engine detachable with a conventional surf-board and single sliding gentle to environment can be performed by exchanging fuel tank. SOLUTION: A recreational device with no contamination is constituted by setting a compact engine on a light weight board, attaining adjustment of motive power by an accelerator attached onto the board and attaining light weight at transportation by the removable fuel tank. COPYRIGHT: (C)2008,JPO&INPIT
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