PUSH SWITCH AND MOVABLE CONTACT MEMBER

• Main Authors: SADAMATSU IZURU, HANAWA NAOKI, USUI KATSUTOSHI
• Format: Patent
• Language: English; Japanese
• Published: 20.04.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

PROBLEM TO BE SOLVED: To provide a push switch which is excellent in operation feeling and has good stability in electrical conduction, and also to provide a movable contact member.SOLUTION: Disclosed is a push switch 1 which includes: a housing 30 equipped with a housing part 31; a first fixed contact part 21 exposed onto a housing bottom surface 31a of the housing part 31; and a movable contact member 10 having a dome part 10a bulged in a dome shape, arranged in the housing part 31 and movable toward and away from the first fixed contact part 21 accompanied with reverse operation of the dome part 10a, and in which the movable contact member 10 is equipped with a contact piece part 10f protruding toward the inside of the dome part 10a in the vicinity of the apex of the dome part 10a and having a tongue shaped contour of a cantilever. At least one of the contact piece part 10f and the first fixed contact member 21 has a first convex part 11 provided in a convex shape toward the other side, and electrical conduction between the movable contact member 10 and the first fixed contact part 21 is started via the first convex part 11.SELECTED DRAWING: Figure 9 【課題】操作感触が良好で、かつ、電気的な導通の安定性が良いプッシュスイッチおよび可動接点部材を提供する。【解決手段】収容部３１を備えたハウジング３０と、収容部３１の収容底面３１ａに露出する第１固定接点部２１と、ドーム状に膨出したドーム部１０ａを有し収容部３１に配置されドーム部１０ａの反転動作を伴って第１固定接点部２１と接離可能な可動接点部材１０と、を備え、可動接点部材１０には、ドーム部１０ａの頂部近傍でドーム部１０ａの内側に向かって突出するとともに、片持ちの舌片状の外形を有する接片部１０ｆを備えたプッシュスイッチ１において、接片部１０ｆと第１固定接点部２１との少なくとも一方には、他方側に向かって凸状に設けられた第１凸部１１を有し、第１凸部１１を介して可動接点部材１０と第１固定接点部２１との電気的な導通が開始される。【選択図】図９