| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection compression molding technology which gives a plurality of molded items having no variation when a resin is simultaneously injected to a plurality of cavities by use of only one injecting apparatus. SOLUTION: When a resin is simultaneously injected from one sprue 67 to two cavities 31 and 31B, the cavities being equipped with a couple of dummy cavities 34 and 35 and a couple of dummy cavities 34B and 35B respectively, the resin is over-flown to the dummy cavities 34, 35, 34B and 35B. Influence of a difference of injected fill is absorbed by the amount of the swell of the resin over-flown to the dummy cavities 34, 35, 34B and 35B. Accordingly two molded items having the same quality can be obtained in spite of the variation of the injected fill.
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