| 摘要 |
PROBLEM TO BE SOLVED: To enable to rapidly open and close between a movable contact point and a fixed contact point, by giving snap actions at the movable contact point. SOLUTION: An operation knob 4 is supported through a first pivot 15 to a switch base 3, and a movable contact point holder 6 facing onto an inner side face of the operation knob 4 with retaining a movable contact point 7 is supported through a second pivot 16 to the switch base 3. And also, a sliding surface 20 facing the operation knob 4 is formed on the movable contact point holder 6, a control plunger 26 making its tip slidably contact with the sliding surface 20 is slidably engaged to the operation knob 4 in a perpendicular direction to an axis line of the first pivot 15. A spring 27 biasing the control plunger 26 onto a contacting direction with the sliding surface 20 is intervened between the operation knob 4 and the control plunger 26, and the movable contact point 7 is attached to the movable contact point holder 6 to be contacted to a fixing contact point 5 when the movable contact point holder 6 is rotated at least onto one of an action position C. COPYRIGHT: (C)2008,JPO&INPIT |
