| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a downsized push switch of two-stage action used for an input operation part of various electronic devices. <P>SOLUTION: In a recess part 1A of a rectangular switch case 1 including a plurality of fixed contact points 2, 3, 4 at an inner bottom face, a push switch houses: a first movable contact 5 which comprises an annular part 5B having a round hole 5A and swollen upward, and four leg parts 5C extended and installed diagonally downward from an outer peripheral edge of the annular part 5B, and in which width between tip outsides of the leg parts 5C mutually having narrow space between the neighboring leg parts 5C is made to have the same dimension as the outer diameter dimension of the annular part 5B or a smaller dimension than that of the annular part 5B; and a second movable contact 6 which is in a circular-dome shape of the same outer diameter dimension as that of the annular part 5B mounted on the annular part 5B, and is swollen out upward. Furthermore, the push switch is configured to mount a driver 8 movably back and forth on a protection sheet 7 to cover an upper face of the recess part 1A. <P>COPYRIGHT: (C)2013,JPO&INPIT |
