发明授权
- 专利标题: Rotational type variable resistor
- 专利标题(中): 旋转式可变电阻
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申请号: US501894申请日: 1990-03-30
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公开(公告)号: US5093648A公开(公告)日: 1992-03-03
- 发明人: Masahiro Kimura , Kenji Hayase , Yukihisa Oda , Toshiyuki Kobayashi , Takayoshi Tsuzuki
- 申请人: Masahiro Kimura , Kenji Hayase , Yukihisa Oda , Toshiyuki Kobayashi , Takayoshi Tsuzuki
- 申请人地址: JPX Aichi
- 专利权人: Aisin Seiki K.K.
- 当前专利权人: Aisin Seiki K.K.
- 当前专利权人地址: JPX Aichi
- 优先权: JPX1-038853[U] 19890331
- 主分类号: H01C10/30
- IPC分类号: H01C10/30 ; H01C10/32
摘要:
A rotational type variable resistor includes a base plate having an arcuate resistance element and an arcuate electrode formed on one surface thereof. A shaft adapted to be connected to the control member is rotatably mounted in the housing and carries a pair of brushes which are disposed in sliding engagement with the resistance member and the electrode. The resistance element is formed from a first resistance layer deposited on the base plate between a pair of copper foil electrodes. A silver paste is disposed between the copper foil electrodes and the opposite ends of the first resistance layer and a second resistance layer is formed which completely overlies the first resistance layer and the copper foil electrodes. The arcuate electrode includes a first layer of copper foil disposed on the surface of the substrate. A silver paste is coated on the upper surface of the copper foil and a third resistance layer is disposed on the surface of the silver paste, and a fourth resistance layer covers the third resistance layer. The resistivity of the first and third layers differs from the resistivity of the second and fourth layers.
公开/授权文献
- USD281950S Hook 公开/授权日:1985-12-31