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    • 6. 发明授权
    • Device for detecting the angle of rotation
    • 用于检测旋转角度的装置
    • US5657544A
    • 1997-08-19
    • US533855
    • 1995-09-26
    • Michio OtaKizashi MaruyamaMasami KitsunaiTaku Murakami
    • Michio OtaKizashi MaruyamaMasami KitsunaiTaku Murakami
    • G01D5/165G01D11/24G01B7/30
    • G01D11/245G01D5/165
    • A rotational angle detecting device includes a rotary shaft 1 having an annular projection 1c formed therein so as to extend radially outwardly therefrom, and a housing 2 rotatably supporting the rotary shaft 1. A plurality of rolling contact bearings 6 each having inner and outer races are mounted on the rotary shaft 1 under a pre-loaded condition so as to sandwich the annular projection 1 c between the respective inner races of the rolling contact bearings 6. The assembly is rotatably received inside the housing 2 to permit the rotary shaft 1 to be rotatable about a longitudinal axis thereof. A resistor element 12 is disposed on an inner surface of a housing lid 3 in concentric relation to the longitudinal axis of the rotary shaft 1. An electroconductive brush 5 is secured to an end face of the rotary shaft 1 for rotation together with the rotary shaft 1 and held in sliding contact with the resistor element 12.
    • 旋转角检测装置包括旋转轴1,其具有形成在其中的环形突起1c,以便从其径向向外延伸;以及壳体2,其可旋转地支撑旋转轴1.多个具有内圈和外圈的滚动接触轴承6 在预加载状态下安装在旋转轴1上,以将环形突起1c夹在滚动接触轴承6的各个内圈之间。该组件可旋转地容纳在壳体2内,以允许旋转轴1 可围绕其纵向轴线旋转。 电阻元件12设置在与旋转轴1的纵向轴线同心的壳体盖3的内表面上。导电刷5固定到旋转轴1的端面以与旋转轴一起旋转 并与电阻元件12保持滑动接触。