| 摘要 |
PURPOSE: A boundary facility is provided to easily transform a facility shape with excellent flexibility and improve the safety by minimizing the damage due to a collision accident. CONSTITUTION: A boundary facility(100) comprises an upper plate(110), a support plate(120), a spring unit(130), and a groove unit(140). The upper plate includes a reverse dome shape. The support plate is attached to the lower surface of the upper plate, and the width of the upper surface of the support unit is smaller than the width of the upper plate. The spring is formed inside the support plate, and the groove unit is formed on the lower surface of the support plate. [Reference numerals] (AA) Drain hole |
