PROBLEM TO BE SOLVED: To provide a rack bush which can suppress the generation of hammering at a rack tooth side of a rack shaft, and a steering device including the rack bush.SOLUTION: A rack bush 10 slidably supports a rack shaft 8 which constitutes a rack-and-pinion type steering device 1 to an axial direction X. The rack bush 10 includes a tooth-side support part 64A and a back-face side support part 64B. The tooth-side support part 64A supports the rack shaft 8 from a rack-teeth 12 side by contacting with a second region 82 which adjoins a first region 81 along the axial direction X at an external peripheral face 8A of the rack shaft 8 in which the rack teeth 12 are formed in the first region 81. The back-face side support part 64B supports the rack shaft 8 from a back face 8B side other than the rack-teeth 12 side by contacting with a third region 83 located in a position deviated from the first region 81 in a peripheral direction Y around an axial line J of the rack shaft 8 at the external peripheral face 8A.SELECTED DRAWING: Figure 6

    【課題】ラック軸のラック歯側において打音が発生することを抑制できるラックブッシュおよびこれを含むステアリング装置を提供すること。【解決手段】ラックブッシュ10は、ラックアンドピニオン式のステアリング装置1を構成するラック軸8を軸方向Xへ摺動可能に支持する。ラックブッシュ10は、歯側支持部64Aと、背面側支持部64Bとを含む。歯側支持部64Aは、第1領域81にラック歯12が形成されたラック軸8の外周面8Aにおいて軸方向Xに沿って第1領域81に隣接する第2領域82に接触することによって、ラック軸8をラック歯12側から支持する。背面側支持部64Bは、外周面8Aにおいてラック軸8の軸線Jまわりの周方向Yで第1領域81から外れた位置にある第3領域83に接触することによって、ラック軸8をラック歯12側以外の背面8B側から支持する。【選択図】図6


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    Title :

    RACK BUSH AND STEERING DEVICE


    Additional title:

    ラックブッシュおよびステアリング装置


    Contributors:

    Publication date :

    2016-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16C SHAFTS , Wellen



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