| 摘要 |
The invention refers to an arena for an interactive game/match played with a ball, an arena built as a circular area - that is the ground. A metallic frame (A) made of a cylindrical wall (B) closes the area. This cylindrical wall is made of some vertical bars (2) united at the top with some horizontal bars (3), which determine the circumference of the circle and it is surrounded by a torus (C) at the bottom. This torus is built of some metallic elements (5, 6 and 7), that form some inner spaces, and of a cupola (D) made of some elliptical elements (4) that unite themselves in a center (e). |
