| 摘要 |
<p>A cost effective simple transportable goal for ball games has a support frame with several chambers (3a ,3b, 4) which are selectively filled with air of water via non return valves, e.g. the bottom chambers can be filled with water to double as ballast. This is achieved by fitting both air and water connections to some chambers. Net panels (17) and a base panel are attached to the frame which can be reinforced by a mesh insert. Pockets (10) can be attached around the base frame to be filled with ballast.</p> |
