| 摘要 |
A synthetic resin shuttlecock for badminton includes an annular base (12) and a number of stems (10) extending from the base and each having side branches (11). These elements are all made of a polymer having a molecular orientation, which runs towards the distal ends of the stems and the branches, for improvement in strength, elastic nature and flying characteristics. The branches of adjacent stems may be unconnected (as shown) or connected to each other. <IMAGE> |
