Monocoque bicycle frame
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 23, 1986
Grant Date -
N/A
app pub date -
May 3, 1984
filing date -
May 3, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A monocoque bicycle frame having a body defined by right and left side panels, top and bottom panels, and a bifurcated rearward portion defined by such panels and also by a rear wheel well insert. The body panels and insert completely enclose a continuous internal space which is compression loaded or tensile prestressed with a rigid foam plastic for increased torsional rigidity and resistance to impact distortion. The pedal sprocket and chain are both external of the hollow frame so as to not interrupt the continuity of the body cavity and its compression loading, and also enabling the body to have minimal weight and an optimum aerodynamic configuration. The frame is diamond-shaped in side profile enabling the monocoque to be constructed as a pair of triangles connected back-to-back for optimum strength, both torsionally and against vertical loading.
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