| 摘要 |
There is provided a multistage push-on switch used in input operation sections in various electronic apparatuses. In particular, there is provided a push-on switch in which a first-stage switch turns on with an operation force lower than conventionally achievable and the resultant on-state is easily retained. The push-on switch is configured such that movable contact ( 7 ) having projecting segment ( 11 ) permanently connected with outer contact ( 41 ) is accommodated in recess ( 21 A) of switch enclosure ( 21 ), on which sheet ( 50 ) with center through hole ( 50 A) for movable contact ( 7 ) is placed. The push-on switch also includes metal cover ( 13 ) with a cover terminal. Metal cover ( 13 ) is attached to switch enclosure ( 21 ) such that pressing segment ( 13 C) faces off against disc segment ( 8 ) of movable contact ( 7 ) corresponding to the position of the center through hole ( 50 A) with a predetermined vertical gap between pressing segment ( 13 C) and disc segment ( 8 ). When a very low and weak force is applied on pressing segment ( 13 C), it comes into contact with disc segment ( 8 ) to change the state of the first-stage switch.
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