发明名称 Method of manufacturing a key top for a push-button switch
摘要 <p>A method of manufacturing a key top for a push-button switch (7,14,19,23,24,25) according to the present invention includes forming a hot-melt adhesive layer (3,11,16) on a resin key top (4) so as to have a shape corresponding to a display portion (5) for displaying a letter, symbol, or other indicia, and transferring a metallic thin film layer (2,12,17) onto the hot-melt adhesive layer (3,11,16). Therefore, the metallic thin film layer (2,12,17) is not damaged due to coating of the hot-melt adhesive layer (3,11,16), and positioning of the display portion (5) is unnecessary. Further, when a transfer resin layer is formed on the metallic thin film layer (2,12,17), oxidation of the metallic thin film layer (2,12,17) or damages thereto can be prevented. <IMAGE> <IMAGE></p>
申请公布号 EP1313118(B1) 申请公布日期 2006.08.16
申请号 EP20020025369 申请日期 2002.11.14
申请人 POLYMATECH CO., LTD. 发明人 SHIMIZU,MASANORI;KIKUCHI, KAZUO
分类号 H01H13/02;H01H13/70;H01H11/00;H01H13/14;H01H13/702 主分类号 H01H13/02
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