| 摘要 |
<p>A sports or physical training device is designed to be mounted on walls (1) etc. It is constructed with flexible tensioning devices (3, 4, 6, 7) by means of which a ball (9) or object which can be hit or otherwise struck may be attached to the wall (1) etc. in a returning or elastic manner. The object (9) is normally of spherical design but may be of extended pillow shape similar to a punch bag. The interior of the object (9) may contain an inflatable rubber or synthetic rubber bladder device. Alternatively, it may contain solid or granular energy-absorbing material.</p> |
