| 摘要 |
A switch is provided with OFF and ON positions and also a Pulse On or Trigger position. The switch automatically springs back from the Pulse On or Trigger position to the ON position. The three switch positions are arrange on an essentially circular support body or switch base. The switching element or switch housing is rotatably supported on the switch base. A flat coil spring pushes the switching element or switch housing from the Pulse On or Trigger position to the ON position.
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