JPS6277835U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a membrane switch showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a sectional view showing the structure of a conventional membrane switch. 2...Lower film, 2a...Lower contact center surface, 3
a, 3b... lower contact, 4... insulating layer, 5... upper substrate, 7... upper contact, 8... pressing member, 8a, 8b... protrusion, 12... sealed space.

Claims (1)

[Scope of utility model registration request] An upper film and a lower film are positioned opposite to each other with a space between them, and of the opposing surfaces of these two films, an upper contact is formed with the opposing surface on the upper film side, and an upper contact point is formed with the opposing surface on the lower film side. In a switch configuration in which two lower contacts are formed close to each other and the upper contact is turned on or off by contacting or separating from the two lower contacts, one of the contact forming surfaces of the lower film , each of the side edges of the two lower contacts forms an insulating layer with respect to the center surface of the lower contact located opposite, and this insulating layer is continuously applied to the other side edges of these two lower contacts. or intermittently formed, and the height of the upper surface of these insulating layers is formed higher than the contact surface of the lower contact, and furthermore, protrusions corresponding to the arrangement positions of the lower contact are formed on the upper part of the upper film. A membrane switch characterized by having a pressing member arranged therein.