| 摘要 |
PURPOSE: A road boundary stone with a spring is provided to prevent a paved road from becoming damaged caused by vehicles. CONSTITUTION: A road boundary stone with a spring, which is not dented comprises a light reflection plate(110), an upper portion, a lower portion, connecting portions(210,220), and a spring(300). The light reflection plate is formed outside a head portion(100). The upper portion having a wing plate(120) is not protruded. The connecting portions are made of rubber, and connect the upper portion and the lower portion. The spring formed between the upper portion and the lower portion makes the head portion moves in and out.
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