| 摘要 |
A flying toy in the form of an aerodynamic flying ring. An annular disk (17) surrounds a central opening (12) to create a ring. A convex upper surface (11) deflects air flowing over the top side of the disk, increasing air speed and reducing downward air pressure. An aerodynamic protruding annular fin (27) located near the inner perimeter (18) of the unit deflects air upward again, increasing air speed and decreasing air pressure again. The lower side of the unit contains an undercut that can be straight (16), curved (20), or angled (22). This undercut creates a lower cutaway surface (19) which may be parallel to, or at an angle to, the horizontal plane. This structure captures air beneath the unit, slowing air speed and increasing upward air pressure on the unit. These features combine to provide greater lift capacity than any of them would produce separately. In the preferred embodiment the disk is made of a soft foam material such as polyethylene or polyurethane, but other materials could be used. Alternative embodiments of the invention contained numbered panels (28) and catching areas (29) which can be used to play a variety of tossing and catching games.
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