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PURPOSE: To provide high contact reliability and to improve operation feeling in an operation, by providing a fixed contact and a dome-like movable contact disposed on the fixed contact, and forming a protrusion contactable/separatable from the fixed contact in a part other than a dome-like top on t...

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Bibliographic Details
Main Authors IWAMA HISAYA, ONO YUTAKA, YAMAGATA TAKEO
Format Patent
LanguageEnglish
Korean
Published 15.03.2001
Edition7
Subjects
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Summary:PURPOSE: To provide high contact reliability and to improve operation feeling in an operation, by providing a fixed contact and a dome-like movable contact disposed on the fixed contact, and forming a protrusion contactable/separatable from the fixed contact in a part other than a dome-like top on the inner surface side of the movable contact. CONSTITUTION: A plurality of protrusions 5c are on an annular line in a part other than a dome-like top 5a on the inner surface side of the movable contact 5. When a stem 6 is pressed down, these protrusions 5c come into contact with a fixed contact 3, and therefore, the fixed contact 3 comes into contact with a movable contact 5 in a place without dust having tendency to accumulate at a central part 3a of the fixed contact 3. Therefore, this is stable in contact comparing with a structure where a top 5a directly comes into contact with the central part 3a of the fixed contact 3, and contact reliability is improved. Because the dome-like top 5a positioned inside the protrusion 5c also becomes movable during inversion, operation feeling during an operation does not exert bad effect. 본 발명의 목적은, 진애 (塵埃) 가 집적되기 쉬운 고정 접점의 중심부를 제외한 위치와 접촉할 수 있고, 높은 접촉 신뢰성을 얻을 수 있음과 동시에, 조작시의 조작 감이 양호하고, 가동 접점의 형상으로 피복되는 시트 부재와의 밀착성이 우수한 푸시버튼 스위치의 반전 기능을 가지는 돔 형상의 가동 접점의 구조를 제공하는 것이다. 그 해결수단으로서, 고정 접점 (2, 3) 과, 이 고정 접점 (2, 3) 상에 배치된 돔 형상의 가동 접점 (5) 을 구비하고, 상기 가동 접점 (5) 의 내면측에는, 돔 형상의 정점부 (5a) 를 제외한 부분에, 상기 고정 접점 (2, 3) 과 접촉 및 분리가 가능한 돌기부 (5c) 를 형성한다.
Bibliography:Application Number: KR20000024569