| 摘要 |
PURPOSE:To prevent erroneous operation by rotatably and movably supporting a weight in a position offset from a position of the center of gravity in a housing, and providing a spring between an output member and the housing, so that stable performance is always provided regardless of a temperature change or the like. CONSTITUTION:A weight 2 is rotatably and movably supported to a groove part 1a by a pin 3 in a position offset from the center of gravity in a housing 1, and in the housing 1, a firing lever 4 having a firing pin 4a is turnably pivotally supported by a pin 5. A spring 6 is arranged between the firing lever 4 and the housing 1, and the firing lever 4 is turned in the clockwise direction, to always energize the firing pin 4a in a direction of springing out from a window 1b of the housing 1. An engaging part 4b engageable/disengageable with/from a cam part 2b is formed in the firing lever 4, to restrict turning in the clockwise direction of the firing lever 4 also rotating in the counterclockwise direction and moving in a downward direction of the weight 2. |
