| 摘要 |
PURPOSE: A sidewalk block is provided to have uniform quality and reduce cost due to mass production and improve durability and prevent water film phenomenon by smoothly draining in raining. CONSTITUTION: A manufacturing method of a sidewalk block comprises following steps. An inner block is molded by mixing filler with waste synthetic resin. The inner block is transferred to a conveyor. The inner block is inserted into a mold. An outer block(1) is molded by injecting synthetic rubber or synthetic resin into the upper side, the lower side, and the outer circumference of the inner block. An upper groove is formed on the upper part of the inner block and a hanging projection is formed at the lower part and a fixing projection is formed at the outside. |
