초록 ▼

A flying disc (1) comprises an outer rim (3) encompassing a contiguous thin central plate (2). The rim has a cross-section comprising an outer surface (4), top and bottom edges (5, 8), and fillet curves (6, 9) joining the top and bottom edges to the respective top and bottom surfaces (7, 10) of the

A flying disc (1) comprises an outer rim (3) encompassing a contiguous thin central plate (2). The rim has a cross-section comprising an outer surface (4), top and bottom edges (5, 8), and fillet curves (6, 9) joining the top and bottom edges to the respective top and bottom surfaces (7, 10) of the central plate. The total height (11) of the rim is the vertical distance between the top and bottom edges. A second height (12) is the vertical distance from the bottom edge to the point (13) where the top fillet curve becomes parallel to the top surface of the central plate. The second height should be between 55% and 80% of the total height in order to achieve balanced aerodynamic lift and thus a straight flight.

대표청구항 ▼

[ What is claimed is:] [1.] A flying disc, intended for throwing and catching, having a structure comprising:a contiguous thin central plan having top and bottom surfaces,an outer rim encompassing said central plate, said rim having an outside diameter and a cross-section comprisingan outer surface,

[ What is claimed is:] [1.] A flying disc, intended for throwing and catching, having a structure comprising:a contiguous thin central plan having top and bottom surfaces,an outer rim encompassing said central plate, said rim having an outside diameter and a cross-section comprisingan outer surface,a top edge,a bottom edge of greater radius measured from the center of the disc than said top edge,a total rim height, measured from said bottom edge to said top edge, of at least five percent of said outside diameter,a top fillet curve joining said top edge to the top surface of said central plate, anda bottom fillet curve joining said bottom edge to the bottom surface of said central plate,said top fillet curve joining said top surface of said central plate at a height between 55% and 80% of said total rim height.