| 摘要 |
PROBLEM TO BE SOLVED: To reduce the moving distance of a press projection and to enlarge the contact time difference of two contacts while ensuring stable operation in a rubber switch formed so that two moving contacts are brought into contact with a fixed contact at a time difference and mainly used for detecting the strength of the rubber switch of an electronic musical instrument. SOLUTION: When the press projection 4 of a rubber-made moving contact support member is pushed down, as shown in (B), a moving contact mounting part 12 is inclined on the other side in a long axial direction and one piece of a moving contact 61 is brought into contact with a fixed contact 31 by the drag of a rib 5 formed in the lower surface of the moving contact mounting part 12 , and when the press projection 4 is successively pushed down, as shown in (C), a projection part 9 for a fulcrum formed on both sides of the moving contact 61 is brought into contact with a base board 2 and the moving contact mounting part 12 is rotated to one side in a long axial direction with the projection part 9 for a fulcrum being used as a fulcrum and, as show in (D), the rib 5 is bent and one piece of a moving contact 62 is brought into contact with a fixed contact 32 . |
