| 摘要 |
A switch device includes: a movable spring that has one end as a fixed end, and the other end as a free end; a substrate that is disposed below the movable spring; a first contact point that is disposed at a predetermined location between the fixed end and the free end of the movable spring; a protrusion that is formed on the substrate and is located to face the free end of the movable spring; and a second contact point that is provided on the substrate and is located to face the first contact point. This switch device is put into an ON state when the free end of the movable spring is brought into contact with the protrusion and the first contact point is brought into contact with the second contact point.
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