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    • 1. 发明申请
    • REBOUND NET
    • WO1985000019A1
    • 1985-01-03
    • PCT/AU1984000104
    • 1984-06-15
    • BECKER, RolandNEWMAN, Vernon, Harold
    • A63B69/00
    • A63B69/0097
    • Rebound net, for use in practising tennis, cricket, baseball and/or other games, having a surrounding frame (20-26) and a net (32) capable of being mounted in the frame (20-26), the net (32) being made of a tough, low-extensible material such as nylon with the threads of the net fastened together at their inter-sections, and a number of attachment clips (34) for fastening said net to the frame via a perimeter cord (33), when the attachment clips (34) are arranged around the frame, in such manner as to hold the net under tension sufficient to provide at least 80% rebound in a tennis ball when dropped upon a mid-portion of the net in horizontal position. The net is arranged so that the threads thereof, when the net is held in the frame under tension, extend from the bottom of the frame upwardly on opposite sides of a vertical centre line at equal angularity to that centre line. That is to say, for a net with a square mesh the diagonals of the mesh extend horizontally and vertically when the frame is in an upright operative position. Preferably, the attachment clips (34) permit of individual adjustment, or tuning, of the net tension at the different locations of the clips.
    • 用于练习网球,板球,棒球和/或其他游戏的篮网,具有能够安装在框架(20-26)中的周围框架(20-26)和网(32),网(32 )由坚固的低延展性材料(例如尼龙)制成,网的螺纹在其相互间隔固定在一起,以及多个附接夹(34),用于通过周边绳(33)将所述网紧固到框架 ),当附接夹(34)围绕框架布置时,以使得网处于足够的张力下足以在网格的中间部分处于水平位置时提供至少80%的网球回弹 。 网被布置成使得当网被张紧地保持在框架中时,其网线从框架的底部在垂直中心线的相对侧上以与该中心线相等的角度向上延伸。 也就是说,对于具有方形网格的网,当框架处于直立操作位置时,网格的对角线水平和垂直延伸。 优选地,附接夹(34)允许在夹子的不同位置处单独调节或调谐净张力。