| 摘要 |
PURPOSE: A boundary structure for sand in playground is provided to enable easy installation since the height of a boundary member can be freely controlled on the boundary surface of sand. CONSTITUTION: A boundary structure for sand in playground comprises a lower bar(15), an upper bar(30), a cushion protector(11), and a fixture(22). The lower bar comprises a connecting hole(17) and a fixing hole(16). A connecting screw(21) is connected to the connecting hole. The upper bar is fixed to be integrated by a fixing screw(18) passing through the fixing hole. The cushion protector protects the lower and upper bars on a space(12). The fixture is connected to the lower part of the connecting screw.
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