| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding moldable under low injection pressure, and in which molding defects are hard to be generated.SOLUTION: The injection molding comprises: a planar part 10 having a planar form; and a guide zone(s) 14 as a rib-shaped projection(s) radially extending from a gate point 13 as a point to be injected with a resin upon injection molding toward a peripheral edge in the planar part 10 and further formed on either or both faces of the planar part 10 so as to be meandered to the face direction or plate thickness direction of the planar part 10. |
