| 摘要 |
PROBLEM TO BE SOLVED: To prevent contact failure of contacts, and prevent water or the like from infiltrating into a position of the contacts by arranging a guide member to move a movable contact in the prescribed direction, and arranging a domed elastic member to surround the upper side and the periphery of the movable contact. SOLUTION: A movable contact 13 and a fixed contact point 14 are arranged on the under side of a push button 12 arranged in a switch main body 11, and a domed elastic member is extended downward so as to surround the upper side and the periphery of the movable contact 13. When the push button 12 is pushed, a dome part 161 of the domed elastic member 16 elastically deflects like being crushed, and the movable contact 13 contacts with the fixed contact point 14. In this case, the movable contact point 13 stably moves downward by being guided by a guide member 17. When a hand is released from the push button 12, the push button 12 and the movable contact 13 move upward by elastic force of the dome part 161, and the movable contact 13 separates from the fixed contact 14. A passage where liquid such as water infiltrates into the base board 15 side does not exist in the domes elastic member 16. |
