| 摘要 |
<p>A mobile sports goal construction comprising: two vertical bars, a horizontal beam that connects the upper ends of the vertical bars listed above, a pair of bottom horizontal side bars, each of which is attached to the bottom end of one of the vertical bars also listed above, a rear bottom horizontal bar, which connects the ends of the two bottom horizontal side bars, characterized in that the weight and lengths of all its parts are chosen to ensure, that the center of gravity of the goal in work position is at a distance of at least 40% of the depth from the plane passing through vertical bars and at a distance of less than 50% of the height of the goal from the plane passing through bottom side bars at a distance of 40 to 60% of the width of the goal from the plane passing through vertical bar and through neighboring bottom side bar.</p> |
