| 摘要 |
PURPOSE: A road stud is provided to improve durability by preventing the load of a vehicle from being transferred from tires to the inside the road stud. CONSTITUTION: A road stud(101) comprises an upper housing(103), a slider(105), a lower cover(107), a transparent cover(131), a reinforcement frame(135), an airtight tube(153), a spring(163), and a luminous unit. The upper housing is buried in the bottom surface of a road. A reflector(111) is installed in the upper housing. The slider is installed inside the upper housing. The lower cover is coupled to the bottom of the upper housing. The transparent cover is installed on the top of the slider. The reinforcement frame is inserted into a frame fitting groove(133) of the transparent cover. The airtight tube is arranged inside the lower cover and the upper housing and forms an airtight space(159). The spring is inserted between the top of the airtight tube and the top of the lower cover. The luminous unit is formed on the top of the slider emits light to the outside through the transparent cover.
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