| 摘要 |
The stand (3) has three arms (11) tightly holding a triangular signal surface of a folding sign at a round part (9), which is hinged and expanded openly in an operational position. A slide rod (7) is connected with the round part. A spreader bar (13) is hinged in a freely lower end (17) of the arm. The spreader bar overlaps outwardly in an obtuse angle in the operational position, and its ends act as feet of the folding sign. |
