To provide a sheet with a movable contact used for operation units of various electronic apparatuses, capable of being miniaturized, and obtaining excellent click feeling even when the sheet with a movable contact has few movable contacts of one or two.
In the sheet with a movable contact in which a movable contact 3 with an upward protruded dome shape, and a spacer sheet 13 with an adhesive 12B applied on the undersurface thereof and movable contact housing holes 14 slightly larger than the outer periphery of the movable contact 3 opened are stuck on the undersurface of a base sheet 11 made of a flexible insulating film with an adhesive 12A applied on the undersurface thereof, an enlarged hole part 15 is provided on a side of the movable contact housing hole 14, and an air through hole 16 is provided at a position of the base sheet 11 corresponding to the enlarged hole part 15. The air through hole 16 is covered with a cover 17 made of a porous-structure member having fine through-holes passing a gas material and not passing a liquid material.
| JP2001167659 | KEY SWITCH APPARATUS |
| JPH0845389 | PUSH-BUTTON STRUCTURE |
YANO KOJIRO
Daisuke Nagano
Kentaro Fujii