PROBLEM TO BE SOLVED: To provide a bearing structure for supporting a steering shaft, capable of stabilizing steering performance by suppressing excessive increase and decrease of an internal clearance of a bearing even when a temperature change occurs.SOLUTION: A bearing structure for supporting a steering shaft 3, including a ball bearing 6 rotatably supporting the steering shaft 3 rotated according to steering with respect to a housing, and having different linear expansion coefficients between the housing 54 and the ball bearing 6, further includes an annular sleeve 7 interposed between the housing 54 and the ball bearing 6, and having a linear expansion coefficient same as the linear expansion coefficient of the ball bearing 6. A male screw 71 formed on an outer periphery of a sleeve 7 and a female screw 54a formed on an inner periphery of the housing 54 are elastically deformed and screwed to each other.SELECTED DRAWING: Figure 2

    【課題】温度変化があった場合でも軸受の内部すきまが過大及び過小になることを抑制し、操舵性能の安定を図ることができる操舵軸を支持する軸受構造を提供する。【解決手段】操舵に応じて回転するステアリングシャフト3をハウジングに対して回転自在に支持する玉軸受6を備え、ハウジング54及び玉軸受6のそれぞれの線膨張係数が異なる構成のステアリングシャフト3を支持する軸受構造において、ハウジング54と玉軸受6との間に介装され、玉軸受6の線膨張係数と同等の線膨張係数を有する環状のスリーブ7をさらに備え、スリーブ7の外周に形成された雄ねじ71と、ハウジング54の内周に形成された雌ねじ54aと、が弾性変形して螺合している。【選択図】図2


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    Title :

    BEARING STRUCTURE FOR SUPPORTING STEERING SHAFT


    Additional title:

    操舵軸を支持する軸受構造


    Contributors:

    Publication date :

    2016-02-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B62D MOTOR VEHICLES , Motorfahrzeuge / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



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