PROBLEM TO BE SOLVED: To provide a ball screw for suppressing the looseness of an end deflector and for improving the assembling property of the end deflector for a nut, and a power steering device having the ball screw.SOLUTION: A ball screw 1 comprises: an end deflector 2; and a nut 21 formed with a storage part 27 for storing the end deflector 2. The end deflector 2 is divided into two or more members, and an elastic member 43 is so interposed between at least one of the divided members and a wall face for forming the storage part 27. The elastic part 43 is made of a generally rectangular leaf spring member 44 having a bent part.

    【課題】エンドデフレクタのガタつきが抑えられ、かつナットに対するエンドデフレクタの組み付け性が向上するボールねじおよびこれを備えたパワーステアリング装置を提供する。【解決手段】エンドデフレクタ2と、エンドデフレクタ2を収容する収容部27が形成されたナット21とを有するボールねじ1であって、エンドデフレクタ2は2つ以上の部材に分割され、分割された部材の少なくとも1つと収容部27を形成する壁面との間に、分割された部材を相互に密着させるように弾性部材43が介設されている。弾性部材43は、屈曲部を有する略矩形状の板ばね部材44から構成される。【選択図】図2


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    Title :

    BALL SCREW, AND POWER STEERING DEVICE


    Additional title:

    ボールねじおよびパワーステアリング装置


    Contributors:
    FUJITA HIROSHI (author) / ITO RYOTA (author)

    Publication date :

    2015-07-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B62D MOTOR VEHICLES , Motorfahrzeuge



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