| 摘要 |
PURPOSE:To obtain the input device of high reliability for conduction between a conductive elastic body and a conducting pattern by laminating an insulating elastic body, conductive elastic body, circuit board and insulator to constitute an electric switch mechanism and reducing the number of parts to be used. CONSTITUTION:For a rubber pad 4, conductive rubber 4b is integrally molded under an insulation rubber 4a and insulating small projections 4c... are provided on a lower surface by printing. Then, a contact pattern 8 in the same size as a rubber top 6 is provided on a circuit board 3. Thus, even when any part of the rubber top 6 is beated by a stick, etc., the rubber pad 4 in the beated part is pressed and one part of the correspondent conductive rubber 4b is brought into contact with the contact pattern 8 certainly through a space part formed among the respective small projections 4c.... Then, an electric signal can be obtained without fail. Namely, the insulation elastic body, conductive elastic body, circuit board and insulator are laminated and the switch mechanism is constituted. Then, the number of the parts to be used can be reduced. |
