| 摘要 |
An annular protective ring attachment designed to grip the outer peripheral edge of all compact discs (CDs) and digital video discs (DVDs) which, when used in combination with said CD or DVD, creates an airfoil. The airfoil ring consists of an inner periphery, which is molded to form a top lip ( 3 ) and bottom lip ( 4 ), and between these lips, a gripping mouth ( 6 ), which securely holds the CD or DVD ( 7,76 ) inside the aperture of the airfoil ring. The body of the airfoil ring is curved in such a way as to create an airfoil adequate to enable the airfoil ring with inserted CD or DVD to be safely tossed into the air and to exhibit controllability in flight. The airfoil ring is constructed of a soft, flexible plastic material, and uses a hinge groove ( 5 ) on the top side of the airfoil skirt ( 1 ) and a hinge groove reaction area ( 9 ) on the underside of the airfoil skirt ( 1 ) to dissipate the contact force upon impact and create a cushioning effect so as to avoid resultant injury or damage when tossed into the air. A locking groove ( 8 ) inside the gripping mouth area ( 6 ) traps the sharp edge of the CD or DVD ( 7 ), preventing it from dislodging upon impact and causing injury.
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