| 摘要 |
Apparatus for projecting balls, having an impact device (10) supported in a frame (11) and provided to convey to a ball an impulse in a direction of projection (Z) from a position in the frame. The frame (11) is supported in a frame work (30) for movement around a vertical axis (X) and a horizontal axis (Y). First and second drive means (M1), and (M2) respectively, are provided to rotate the frame (11) around said vertical axis (X) and said horizontal axis (Y) respectively. Said rotation being a two way movement over adjustable angular arcs. Means (27, 27', 28, 28', 45, 46) is arranged for controlling the movement of the frame (11) around the vertical axis (X) and the horizontal axis (Y). Said means comprises limit switches (27, 27', 28, 28') which are manually displacable, a control system (46) having adjustable means (A-F) for limiting the movement of said frame (11), or a program means (45) for adjusting a sequence of predetermined directions for the frame (11). |
