| 摘要 |
PURPOSE: A drainage cover is provided to improve durability and reduce weight and manufacturing costs by being manufactured through SMC, TMC, and BMC methods. CONSTITUTION: A drainage cover comprises a waterway(D), an edge(E), a frame portion(10), a support projection(20), a drain hole(30), and a protection unit(40). The drainage cover comprises one or more materials among SMC, TMC, and BMC. A frame portion is formed into a polygon structure and is made of material having high durability. A support projection is formed on both sides of the frame portion. The support projection engages with the edge of the waterway, and a drainage cover is placed thereon. Multiple drain holes are provided on the frame portion. The protecting unit is made of metal plates having high durability to protect the upper surface of the frame portion. |
