| 摘要 |
PROBLEM TO BE SOLVED: To mold a foamed molded product of high quality having no defect in its skin layer and free from voids in a high yield. SOLUTION: A mold 10 is constituted of a container-shaped lower mold 20, the upper mold 30 covering the lower mold 20 and a partition plate 40. Two small cavities 11 and 12 are formed in the mold 10 by the partition plate 40. The partition plate 40 is mounted in the vertical grooves 23 of the lower mold 20 in a state that the upper mold 30 is detached. The partition plate 40 becomes afloat by the energizing force of a leaf spring 50. After a liquid is injected, the lower mold 20 is covered with the upper mold 30 to clamp both molds 20 and 30. The partition plate 40 is pushed by the upper mold 30 to descend and the lower end of a main plate part 41 comes into contact with the deepest parts 22 of the bases of the cavities. Foaming proceeds in this state. After the foam is cured (hardened), the upper mold 30 is detached to demold the foamed molded product. COPYRIGHT: (C)2004,JPO&NCIPI |
