| 摘要 |
PURPOSE:To adjust contact point pressure by forming the direction of a central shaft of an intermediate movable member in a disk shape coincident with a shaft of a movable shaft, reducing weight by reducing the radius, and rotating and moving a driving pin of a movable body in the movable shaft direction. CONSTITUTION:When an iron core 20 is attracted to an iron core 21 by magnetization of a coil 19, a pin 20a drives one end of a movable shaft 12 through an intermediate movable member 25, and contact points of a sealing contact point part AA comes into contact with each other. When the magnetization is cut off, a return spring 17 returns by sealing pressure of electric insulating gas in a sealing vessel 1, and the contact points are opened, and return to a former condition while being braked by a coil spring 23. An operation display part 26 pressed by the intermediate movable member 25 exposes one end from a housing 24, and it can be confirmed from outside, and an operation lever of an auxilary contact point is also pressed by the member 25, and the contact point is opened and closed, and an auxiliary circuit separated from the contact point part AA can be controlled. A stroke of the member 25, that is, the contact point pressure of the contact point device AA can be adjusted from outside by rotation of the pin 20a after incorporation. In this case, operations of the operation display part 26 or the operation lever of the auxiliary contact point 27 are not hindered. |
