The present invention relates to a rack bar support structure with a noise reduction function and, more specifically, to a rack bar support structure configured to reduce noise generated when a rack bar is moved. The rack bar support structure comprises: a support yoke having a seating groove formed on an upper portion thereof so that a part of the rack bar is fitted; and a rack bar which is fitted into the seating groove to be guided and has a gear portion formed on one side thereof. A pair of inclined surfaces is formed on the seating groove of the support yoke, and a guide groove is formed on the inclined surface. A guide unit is fitted into the guide groove formed on the inclined surface with an upper portion thereof protruding to the outside. A seating protrusion portion having a pair of inclination support surfaces is formed on the rack bar to be fitted into the seating groove and supported by the guide unit. The seating groove having the inclined surface is formed in the support yoke, the curved guide groove is formed in the inclined surface so that the guide unit is fastened, and the seating protrusion portion having the inclination support surface is provided on the rack bar to be guided by the guide unit and fitted into the seating groove so that the contact surface between the support yoke and the rack bar is reduced and the guide unit supports the flow of the rack bar, thereby reducing maintenance costs due to wear and significantly reducing noise caused by friction.

    본 발명은 소음저감기능을 갖는 랙바 지지구조에 관한 것으로서, 보다 상세하게는 랙바의 이동시 발생하는 소음을 저감시키도록 된 랙바 지지구조로서, 상부에 상기 랙바의 일부가 끼움되도록 안착홈이 형성된 써포트요크와, 상기 안착홈에 끼움되어 안내되고, 일측에 기어부가 형성된 랙바로 이루어지며, 상기 써포트요크의 안착홈에는 한쌍의 사선경사면이 형성되고, 상기 사선경사면에는 안내홈이 형성되며, 상기 사선경사면에 형성되는 안내홈에는 상부가 외부로 돌출되게 가이드유닛이 끼움되고, 상가 랙바에는 상기 안착홈에 끼움됨과 아울러 상기 가이드 유닛에 지지되도록 한쌍의 사선지지면을 갖는 안착돌부가 형성되어, 써포트요크에 사선경사면을 갖는 안착홈을 형성하고, 사선경사면에 가이드유닛이 체결되도록 곡선의 안내홈을 형성하며, 랙바에 가이드유닛에 안내되면서 안착홈에 끼움되도록 사선지지면을 갖는 안착돌부를 마련하여, 써포트요크와 랙바의 접촉면을 줄임과 아울러 랙바의 유동을 가이드유닛이 지지하도록 함으로서, 마모에 따른 유지보수비용이 절감되고 마찰에 의한 소음이 대폭 저감되는 효과가 있다.


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    Titel :

    Rack bar support structure with noise reduction function


    Weitere Titelangaben:

    소음저감기능을 갖는 랙바 지지구조


    Beteiligte:
    HONG SEONG JONG (Autor:in) / KIM DONG IK (Autor:in)

    Erscheinungsdatum :

    2020-06-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

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



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