| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary switch, capable of providing a stable contact by holding the lubricating properties of oil content to make the switch difficult to wear by the aid of the lubricating properties, and cutting an oil film at the time of the contact of an upper movable contact with a fixed contact. SOLUTION: The contact face of the fixed contact 22 is finished into a rough surface, having irregularities of 2-8μm formed thereon, and grease 50 is applied thereto. |
