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    • 4. 发明申请
    • Toy airboat
    • 玩具风帆
    • US20070197108A1
    • 2007-08-23
    • US11356794
    • 2006-02-17
    • Robert Sanger
    • Robert Sanger
    • B63H7/00
    • B63H7/02
    • A toy airboat (10) having a negative trim element (38) and an adjustable positive trim element (44) for selectively controlling the performance of the craft in varying environmental conditions such as wind speeds and wave heights. The negative trim element may be smoothly curved protrusions (40) formed integral to the hull (12) in order to avoid snagging debris in water and to allow operation over land without damage to the hull. The protrusions may be symmetrically located on opposed sides of a centerline (CL) of the craft approximately midway between the centerline and a perimeter (16) of the hull. The adjustable positive trim element may be a bolt (46) threaded into a nut (48) affixed to a deck (14) of the craft. The nut extends to make contact with the hull to impart a desired degree of convex curvature to the otherwise generally flat bottom of the hull. The bolt may be attached to the hull with a push/pull mechanism (54) to allow the nut alternatively to impart a desired degree of concave curvature to the hull.
    • 具有负调节元件(38)和可调节正调节元件(44)的玩具式安全气囊(10),用于在诸如风速和波高等变化的环境条件下选择性地控制飞行器的性能。 负修剪元件可以是与船体(12)一体形成的平滑弯曲的突起(40),以避免在水中阻塞碎屑并且允许在陆地上操作而不损坏船体。 突起可以对称地位于飞行器的中心线(CL)的相对侧上,大约在中心线和船体的周边(16)之间的中间。 可调节的正修剪元件可以是螺纹连接到固定到工艺的甲板(14)的螺母(48)中的螺栓(46)。 螺母延伸以与船体接触,以向船体的另外基本平坦的底部施加所需程度的凸曲率。 螺栓可以用推/拉机构(54)附接到船体,以允许螺母交替地向船体赋予期望的凹曲率。