| 摘要 |
A system used for delivering sports balls, intended to be hit by a hand-held sports implement, particularly tennis balls having a rebound wall that is vertical or substantially vertical and a collection trough for the balls, said trough being disposed at the foot of the rebound wall. A covering of the rebound wall is secured solely to a pair of parallel edge rails of the associated frame and the side portions that connect the edge rails are forced apart by the pressure of the springs disposed therein. |
