RETRACTABLE WATER BOARD FIN
    2.
    发明申请
    RETRACTABLE WATER BOARD FIN 审中-公开
    可回收水板

    公开(公告)号:WO1987004399A1

    公开(公告)日:1987-07-30

    申请号:PCT/US1987000237

    申请日:1987-01-21

    CPC classification number: B63B35/7926

    Abstract: A generally trapezoidal fin (22) is pivotally fastened to a casing which can receive the entire fin, permitting total retraction of the fin. The casing is formed with at least one notch (42) for selectively positioning the fin relative to the casing. In a preferred embodiment, the fin is operated by a lever member (26) which has a knob (50) at its distal end for use in positioning the fin (22) from above.

    Abstract translation: 大致梯形的翅片(22)枢转地固定到可以容纳整个翅片的壳体上,允许翅片完全缩回。 壳体形成有至少一个凹口(42),用于相对于壳体选择性地定位翅片。 在优选实施例中,翅片由杠杆构件(26)操作,杠杆构件(26)在其远端具有旋钮(50),用于从上方定位翅片(22)。

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