An electric steering device according to an embodiment of the present invention includes a column tube supported by a vehicle body; a lower shaft fixedly installed on the lower side in the inner space of the column tube; an upper shaft installed in the inner space of the column tube, installed to be longitudinally movable on the upper end of the lower shaft, and connected to a steering wheel; a first shock absorbing part which fixes the lower shaft and the upper shaft and is broken when an impact is applied to allow movement of the upper shaft; a second shock absorbing part which fixes the column tube and the vehicle body by mediating between them, and is broken when an impact is applied to allow movement of the column tube; and a third shock absorbing part which absorbs an impact while limiting the downward movement distance of the column tube. According to the present invention, an impact applied to a driver can be minimized by sequentially absorbing the impact by the three parts so that the impact is distributed and absorbed.

    본 발명의 일 실시예에 따른 전동식 스티어링 장치는, 차체에 지지되는 컬럼 튜브; 상기 컬럼 튜브의 내부공간 하측에 고정 설치되는 로워 샤프트; 상기 컬럼 튜브의 내부공간에 설치되되 상기 로워 샤프트의 상단에 길이방향으로 이동 가능하게 설치되고 스티어링 휠과 접속되는 어퍼 샤프트; 상기 로워 샤프트와 상기 어퍼 샤프트를 고정시키되 충격이 가해지면 파단되어 상기 어퍼 샤프트의 이동을 허용하는 제1충격흡수부; 상기 컬럼 튜브와 상기 차체 사이를 매개하여 고정시키되 충격이 가해지면 파단되어 상기 컬럼 튜브의 이동을 허용하는 제2충격흡수부; 및 상기 컬럼 튜브의 하방 이동거리를 제한하면서 충격을 흡수하는 제3충격흡수부;를 포함한다.


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    Title :

    ELECTRIC POWERED STEERING DEVICE


    Additional title:

    전동식 스티어링 장치


    Contributors:

    Publication date :

    2023-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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