| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold structure which does not generate defects such as a flow mark or the like on the surface of a molded product. SOLUTION: A gate part 42 is so arranged that the flowing direction of a molten material which is made to flow into the gate part 42 is not on the extension line of the flowing direction of the molten material flowing in a runner part 34, thereby facilitating flowing of the molten material to a material reservoir 38 located on the extension line of the flowing direction of the molten material which flows in the runner part 34. Thus, the molten material which flows in the runner part 34, fills in the material reservoir 38 first and is made to flow in a cavity part 26 from the gate part 42. The molten material which flows in the runner part 34 and is cooled by the time arriving at the gate part 42 is collected on the material reservoir 38 side, enabling the temperature difference of the molten material filled in the cavity part 26 to be reduced, and making a wave like flow mark or the like hard to be generated on the surface of the molded product 10. COPYRIGHT: (C)2004,JPO
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