PUSH SWITCH

• Main Authors: TAZAWA TOSHIHIKO, KANEKO AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 10.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

To provide a push switch of which a feeling in a case where a pressing operation is performed is improved and reduces collision noise in a case where a movable contact and a stationary contact are brought into contact.SOLUTION: A push switch comprises: a housing including a storage part; a movable contact member which is stored in the storage part and includes a dome part; a first stationary contact member which is stored in the storage part and includes a first stationary contact which is brought into contact with the movable contact member by an inverting action of the dome part; a second stationary contact member which is in contact with the movable contact member; and an operation member which is abutted to a central portion of the dome part. The first stationary contact is positioned outside of the central portion of the dome part in a plane view. In a state where the inverting action of the dome part by a push-down operation of the operation member is completed or in a state where the central portion of the dome part is further pushed down than the state where the inverting action is completed, the dome part and the first stationary contact are brought into contact.SELECTED DRAWING: Figure 6 【課題】押圧操作を行ったときの感触が良好で、可動接点と固定接点とが接する際の衝突音を低減したプッシュスイッチを提供する。【解決手段】プッシュスイッチは、収納部を有する筐体と、前記収納部内に収納され、ドーム部を有する可動接点部材と、前記収納部内に収納され、前記ドーム部の反転動作により前記可動接点部材と接する第１固定接点を有する第１固定接点部材と、前記可動接点部材と接する第２固定接点部材と、前記ドーム部の中央部に当接する操作部材と、を備え、前記第１固定接点は、平面視において前記ドーム部の中央部より外側に位置し、前記操作部材の押し下げ操作による前記ドーム部の反転動作が完了した状態において、又は、前記反転動作が完了した状態よりもさらに前記ドーム部の中央部が押し下げられた状態において、前記ドーム部と前記第１固定接点とが接する。【選択図】図６