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Push button switch and its manufacture
申请号	JP30694487	申请日	1987-12-04	公开(公告)号	JPH01149329A	公开(公告)日	1989-06-12
申请人	S M K Kk; Toshiba Silicone Co Ltd;			发明人	KAWAI NOBUYUKI; NAKAMURA MITSUHIRO;
摘要	PURPOSE: To provide an uncostly push button switch with uniform electric characteristics by applying a pressure sensitive paste as a pressure sensing resistant body to the surface facing an electric pattern with a certain space between, and mounting this conductive on an insulative push button. CONSTITUTION: An insulative push button 2 is fitted with a conductive plate 3, in which a pressure sensitive paste as a pressure sensing resistant body is applied to the surface facing an electrode pattern 14 with a space d between, which range 0.3 thru 0.4mm. That is, pressure sensitive conductive paste as pressure sensing resistant body 1 is applied to a conductive rubber sheet 3a as a conductive plate 3, followed by drying and solidification. The this conductive rubber sheet 3a to which the pressure sensing resistant body 1 is applied is punched into specified size and shape by a press machine 13, and the punched conductive plate 3 is located on the pushing surface 5 of the push button 2 of insulative rubber, followed by consolidation in a die through heating and vulcanization. This simplifies molding process, suppresses the costs, and provides products with uniform electric characteristics. COPYRIGHT: (C)1989,JPO&Japio
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