The resin molded article is molded by using an electrode sheet as an insert in a state where one surface of the electrode sheet is closely attached to an inner surface which serves as the inner side of the operation surface. The electrode sheet is formed by using, as a base material, a thermoplastic synthetic resin sheet which outputs an electrical signal according to the amount of change of electrostatic capacitance generated by a contact operation with respect to the operation surface. At least a whole or a part of the inner surface is formed in a three-dimensionally curved surface, and a passage is formed in the electrode sheet so as to allow a molten resin following in through a gate formed in a die which comes into contact with the other surface of the electrode sheet during molding to pass toward one surface side of the electrode sheet.

A pressure-activated membrane switch and methods of use are provided. The pressure-activated membrane switch includes a first electrically-conductive membrane, and a second electrically-conductive membrane. Contact between the first electrically-conductive membrane and the second electrically-conductive membrane is configured to cause an electrical circuit, of which the switch is a part, to close. The pressure-activated membrane switch further includes a plurality of spacers dispersed between the first electrically-conductive membrane and the second electrically-conductive membrane, and one or more columns positioned on an outer surface of the second electrically-conductive membrane. The plurality of spacers form one or more gaps between the first electrically-conductive membrane and the second electrically-conductive membrane, and the one or more columns are configured to pass through the one or more gaps when a pressure is applied to the one or more columns, which will cause the second electrically-conductive membrane to deform to contact the first electrically-conductive membrane.

The resin molded article is molded by using an electrode sheet as an insert in a state where one surface of the electrode sheet is closely attached to an inner surface which serves as the inner side of the operation surface. The electrode sheet is formed by using, as a base material, a thermoplastic synthetic resin sheet which outputs an electrical signal according to the amount of change of electrostatic capacitance generated by a contact operation with respect to the operation surface. At least a whole or a part of the inner surface is formed in a three-dimensionally curved surface, and a passage is formed in the electrode sheet so as to allow a molten resin following in through a gate formed in a die which comes into contact with the other surface of the electrode sheet during molding to pass toward one surface side of the electrode sheet.

An anti-ghost membrane switch device includes a first membrane layer, a second membrane layer, and a spacing layer. A first surface of the first membrane layer is provided with first trigger points and a first signal line. The first signal line is connected to the first trigger points and extends to a first output terminal. A second surface of the second membrane layer faces towards the first surface and is provided with second trigger points and second signal lines. Ends of the second signal lines are connected to the second trigger points. Another ends of the second signal lines extend to the second output terminal. The second signal lines are not electrically connected with one another. The first signal line of the first membrane layer and the second signal lines are not electrically connected with one another. The spacing layer is between the first and second membrane layers.

An electric switch includes a base which receives a plurality of fixed electrical contacts and a movable electrical contact. The switch also includes an actuating body made of elastic material. The switch also includes a central, top, pushbutton. The body includes a lateral part, surrounding a top force-receiving portion. The pushbutton includes a lateral actuating surface for acting on this top lateral part of the body. When operated, successively, the central actuating surface of the pushbutton acts on the top force-receiving portion and elastically deforms a wall part of the body, and then the lateral actuating surface of the pushbutton acts on the top lateral part.

An electric switch includes a base which receives a plurality of fixed electrical contacts and a movable electrical contact. The switch also includes an actuating body made of elastic material. The switch also includes a central, top, pushbutton. The body includes a lateral part, surrounding a top force-receiving portion. The pushbutton includes a lateral actuating surface for acting on this top lateral part of the body. When operated, successively, the central actuating surface of the pushbutton acts on the top force-receiving portion and elastically deforms a wall part of the body, and then the lateral actuating surface of the pushbutton acts on the top lateral part.