发明名称 MANUFACTURE OF RESIN MOLDED ITEM WITH OPENING AND INJECTION MOLD USED THEREFOR
摘要 PURPOSE:To obtain readily and precisely a resin molded item with openings in position, by placing a preformed and decorative film in a cavity, and stamping the decorative film when a mold is closed. CONSTITUTION:A preformed and decorative film 23 is inserted and placed in a stamper 4 of a cavity 2 of an injection mold 1, and the mold is closed so that the decorative film 23 is stamped by stamping pins 8 on the side of the core 3 and the pine 8 are allowed to enter a penetration section 5. Thus the film 23 is formed with openings 24 in position. Then a resin 25 is injection molded and the injection molded item 26 is taken out from the cavity 2. Thus the injection molded item 26 can be obtained wherein the decorative film 23 on which the fine pattern on the stamper 4 is transferred precisely and the resin layer 25 on the undersurface thereof are integrated and openings 27 are provided in position.
申请公布号 JPS59152834(A) 申请公布日期 1984.08.31
申请号 JP19830025635 申请日期 1983.02.18
申请人 SONY KK 发明人 TAKAHASHI MAKOTO;OOUCHI SHIGEO
分类号 B29C41/00;B29C45/00;B29C45/14;B29C45/36;B29C45/37 主分类号 B29C41/00
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