SYNTHETIC SHUTTLECOCK FEATHER AND SHUTTLECOCK

摘要

The synthetic shuttlecock feathers are annularly implanted in a base portion of a shuttlecock and comprise a feather portion and a feather shaft portion supporting the feather portion. The feather shaft portion is formed of a material having a Charpy impact strength of at least 30 kJ/m² and a bending elastic modulus of at least 4 GPa, or preferably a Charpy impact strength of at least 36 kJ/m² and a bending elastic modulus of at least 4.7 GPa.