| 摘要 |
A contact mechanism is provided where vibration resistance canbe increased and, particularly, chattering during an operation can be prevented so that contact reliability is high, and no irregularity occurs in an open/close characteristic. Apair of movable contact pieces is supported on a movable contact terminal such that the pair of movable contact pieces is rotatable along with the reciprocation of an operating element. An open/close movable contact is mounted on an open/close movable contact piece which forms one of the movable contact pieces and is rotatably biased by a spring member. A current-passing movable contact is mounted on a current-passing movable contact piece which forms the other of the movable contact pieces. By moving the operating element, a restriction imposedonaposition of the operating element is released so that the open/close movable contact piece is rotated by a spring force of the spring member whereby the open/close movable contact is brought into pressure contact with an open/close fixed contact mounted on afixedcontact terminal. On the other hand, the current-pass ing movable contact piece is rotated by the operating element so that the current-passingmovable contact is brought into pressure contact with a current-passing fixed contact mounted on the fixed contact terminal. |
