| 摘要 |
PROBLEM TO BE SOLVED: To improve conversion efficiency of wave force energy by providing a flat plate floating body with an auxiliary floating body whose natural frequency can be adjusted, resonating this floating body by making an oscillating motion natural frequency of front and rear directions of the floating body coincide with the frequency of waves and driving pumps at both the ends of a link member by motion of the floating body. SOLUTION: At the center of a base part 10 provided on an upper surface of a tank 1 in which a lower end of a leg part 11 is fixed to a sea-bottom 9 and a length of a depth of water or more is provided, a pump 7 in which a shaft 70 for pivotally attaching a link member 2 to the base part 10 is made as a center shaft is installed. A free end of the link member 2 is constituted as a housing of a second pump 8 and a floating body 3 is pivotally attached to a center shaft 80 of this pump 8. This floating body 3 is constituted of an auxiliary floating body 5 springing out from the surface of the sea and sinking into the sea according to oscillation due to wave motion and a flat plate floating body 4 to be fixed to this auxiliary floating body 5 by separating the flat plate floating body 4 by a prescribed distance satisfying a resonance condition with the auxiliary floating body 5 via a connecting plate 6, and the pumps 7, 8 are driven by oscillating motion of this floating body 3.
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