PROBLEM TO BE SOLVED: To provide a ball screw which improves the assemblability of an end deflector to a nut while inhibiting backlash of the end deflector, and to provide a power steering device including the ball screw.SOLUTION: A ball screw 1 includes: an end deflector 2; and a nut 21 in which a housing part 27 for housing the end deflector 2 is formed. The end deflector 2 is divided into two or more members. At least one of the divided members includes a protruding part 43 which contacts with a wall surface forming the housing part 27. The protruding part 43 is formed by a protrusion integrally formed with the end deflector 2 or a rubber member etc. formed by a member different from the end deflector 2.

    【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つは、収容部27を形成する壁面と接触する凸部43を有する。凸部43はエンドデフレクタ2に一体的に形成された突起、あるいはエンドデフレクタ2とは別部材からなるゴム部材等からなる。【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 :

    2015-06-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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