| 摘要 |
PCT No. PCT/GB96/00711 Sec. 371 Date Oct. 1, 1997 Sec. 102(e) Date Oct. 1, 1997 PCT Filed Mar. 26, 1996 PCT Pub. No. WO96/31260 PCT Pub. Date Oct. 10, 1996A shuttlecock comprises a nose and a frusto-conical skirt fixed thereto. The skirt is formed of an inner layer and an outer layer of plastics sheet material generally lying against one another. The outer layer is formed with a plurality of spaced elongate channels which are open towards the inner layer and the inner layer is formed with a plurality of spaced elongate channels corresponding to and aligned with those of the outer layer and opening towards the outer layer such that the channels of the inner and outer layers of the skirt cooperate to form hollow stiffening columns. Elongate stiffening members are located within the hollow stiffening columns and are bonded to both layers of the skirt. |
