| 摘要 |
A push switch is provided to prevent the poor contact caused by foreign materials entering from the outside, thereby improving reliability. A push switch(1) comprises a case and a second unit(4). The case has a first unit(23) in which a first penetration hole(24) is formed. The fixed contact points(23a,23b) of the case are exposed to the outside. The second unit is arranged to correspond to the first penetration hole. A second penetration hole(44) is formed on the inner side of the second unit. A controller(5) is formed on the case. The first unit is inserted into and passed through the second unit. The fixed contacts are extended in the moving direction of the controller.
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