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    • 61. 发明专利
    • MARINE HELIPORT
    • JPH03221605A
    • 1991-09-30
    • JP1497390
    • 1990-01-26
    • KANTO JIDOSHA KOGYO KK
    • SAITO SHINICHI
    • E01F3/00B63B35/50B64F1/00E02B17/00
    • PURPOSE:To secure a stable position by arranging a breakwater wall provided with a submerged float on its lower part, around a pontoon whose upper surface has been made a deck so as to have an intervening gap, and by arranging a shock absorber in the gap. CONSTITUTION:Around a pontoon 10 whose upper surface has been constituted as a deck for landing a helicopter, a breakwater wall 20 provided with a submerged float 21 on its lower part is arranged so as to have an intervening gap 15. And a shock absorber 30 that allows the relative movement of the pontoon 10 in the direction along the inner wall of the breakwater wall 20, and the elastically restrains the relative movement in the direction of collision is arranged in this gap 15. Thus, when a helicopter lands on or takes of the deck, the change of draft can be restrained in a small degree, and the influence of waves and swell can be reduced, and also the shock in the collision direction is elastically absorbed, so that a stable position can be secured.