피니언 기어와 맞물리는 랙부 및 요크에 의해 지지되는 면을 포함하는 중공형 랙바를 용이하고 정확하게 제조하는 방법, 및 그 중공형 랙바가 제공된다. 중공형 랙바(10)는, 피니언 기어(29)와 맞물리는 랙부(21); 및 랙부(21)의 톱니의 이면에 제공되고 요크(31)에 의해 지지되는 지지면(23)을 포함한다. 랙부(21)는, 원형 튜브 재료의 바깥면에 톱니 몰드(39)를 위치시키고, 원형 튜브 재료의 내부로 코어 바(41)를 삽입하여 원형 튜브 재료의 안쪽면을 가압하고, 이에 의해 톱니 몰드(39)의 형상이 전사되는 것에 의해 형성된다. 지지면(23)은 원형 튜브 재료의 랙부(21)의 톱니의 이면의 제거 프로세스 또는 변형 프로세스에 의해 형성된다.

    Provided is a hollow rack bar including a rack portion that is engaged with a pinion gear and faces supported by a yoke. The hollow rack bar includes: the rack portion engaged with the pinion gear; and the supported faces provided on a back side of teeth of the rack portion and supported by the yoke. The rack portion is formed by locating a toothed mold on an outer face of a circular tube material, and inserting a cored bar into the circular tube material to pressurize an inner face, thereby transferring a shape of the toothed mold. The supported faces are formed by removal processing or deformation processing of a back side of the teeth rack portion of the circular tube material.


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    Title :

    HOLLOW RACK BAR AND METHOD OF MANUFACTURING THE HOLLOW RACK BAR


    Additional title:

    중공형 랙바 및 중공형 랙바를 제조하는 방법


    Publication date :

    2022-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern / B21J FORGING , Schmieden / B62D MOTOR VEHICLES , Motorfahrzeuge / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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