| 摘要 |
The system includes an apparatus for use as a traffic warning device comprising a central tube (1), an upper hinge block (2), a lower hinge block (3), a number of support legs (4), said legs being pivotally attached to said upper hinge block (2) and a number of link arms (5), said link arms (5) being pivotally attached at one end to the lower hinge block (3) and at the other end each to a respective leg (4). |
