| 摘要 |
Each movable contact 15 is given a first force by a drive mechanism along a direction for bringing the movable contact into contact with a fixed contact 5 and given a second force through a leg 14 b by deformation of a supporting member 14 c resulted from an overtravel of the movable plate 14 . The fixed contact and the movable contact are arranged such that a resultant force of the first and the second forces acts in a direction normal to a contact surface defined between the fixed contacts and the movable contacts. So, a component force of the resultant force parallel to the contact surface is not generated, therefore, a side slip of the movable contact can be prevented when the contacts are opened or closed.
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