| 摘要 |
<p>The invention relates to a system intended to be mounted in a gymnasium or on a sports ground for various sports. According to the invention, the system consists of at least four mobile pillars (1), each said pillar (1) being provided with a metal cube-shaped base (2) with five self-blocking rollers (3) and with two stabilizing retractable arms (4), as well as of some basketball net backboards (7) provided with their respective L-shaped supports (8) which allow height adjustment and the rotation of the backboards (7), when mounted on the pillar (1), each stabilizing arm (4) being provided, at its end, with a stabilizing shoe (6) of adjustable pressure by screwing.</p> |
