摘要 |
The signpost is anchored within a cylindrical foundation (1) with a hemispherical shell at the center of the base (6), to take the ball-shaped head of the foot (5) of the post. The foundation has a cover (4) with an inner curvature and rests on the chamfered edges (3) at the foundation walls, to be tilted on a side impact and detach the foot of the post from its lodging in the base. |