Method of manufacturing a key top for a push-button switch

Details Method of manufacturing a key top for a push-button switch Method of manufacturing a key top for a push-button switch

2006-02-07

2006-02-07

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S527100, C200S310000, C200S341000, C428S189000, C428S195100, C264S132000, C264S259000, C156S233000, C156S234000, C156S235000, C156S238000, C156S239000, C156S240000, C156S241000

Reexamination Certificate

active

06993830

ABSTRACT:
A method of manufacturing a key top for a push-button switch according to the present invention includes forming a hot-melt adhesive layer on a resin key top so as to have a shape corresponding to a display portion for displaying a letter, symbol, or other indicia, and transferring a metallic thin film layer onto the hot-melt adhesive layer. Therefore, the metallic thin film layer is not damaged due to coating of the hot-melt adhesive layer, and positioning of the display portion is unnecessary. Further, when a transfer resin layer is formed on the metallic thin film layer, oxidation of the metallic thin film layer or damages thereto can be prevented.

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European Search Report dated Feb. 19, 2003.
Communication pursuant to Article 96(2) EPC.

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