| 摘要 |
PROBLEM TO BE SOLVED: To obtain a touch sensor of an A contact point system excellent in repetition precision of signal sending operation position, and a touch sensor wherein a B contact point system is added to the A contact point system touch sensor, and both of the systems are unified in a body. SOLUTION: A movable contact point 14b comes into contact with a spherical contact point 21 turning to a fixed contact point arranged coming into contact with three spherical components 20a (20b, 20c) of a spherical components backing plate 19, and an ON signal is sent out (A contact point system). When another movable contact point 7 is isolated from another fixed contact point 9, an OFF signal is sent out (B contact point system). At the instance when a detection body comes into contact with a contact, the contact points of the B contact point system are mutually isolated and the OFF signal is sent out. When the detection body is further displaced, the contact points of the A contact point system are brought into contact with each other, and the ON signal is sent out.
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