The present invention relates to a rear cross member for a vehicle, which makes it possible to maintain rigidity while being made lightweight through aluminum extrusion using a truss structure, and a method for manufacturing the same. The rear cross member for a vehicle is formed by symmetrically disposing side members on the left and right sides of connecting members. The side members each include: a horizontal member which has a coupling portion formed at one end thereof and coupled to the connecting members, and has a packing coupling hole formed in the other end thereof by being vertically penetrated therethrough; a main member which is coupled to the middle of the horizontal member; auxiliary horizontal members which have coupling portions coupled to the top and middle of the main member to be coupled to the connecting members; a packing support member which is coupled to the main member symmetrically to the auxiliary horizontal members and has a packing coupling hole vertically penetrated therethrough; and rear upper arm coupling brackets coupled to the main member to be located between the horizontal member and the packing support member.

    본 발명은 차량용 리어 크로스 멤버 및 리어 크로스 멤버의 제조방법에 관한 것으로, 트러스 구조를 적용한 알루미늄 압출을 통해서 경량화하면서도 강성을 유지할 수 있도록 한 것이다. 즉, 본 발명은 연결부재의 좌우측에 대칭으로 사이드 멤버를 배치하여 구성한 차량용 리어 크로스 멤버에 있어서; 상기 사이드 멤버는 연결부재와 결합되는 결합부가 일단에 형성되고, 타단에 상하 관통되어 패킹결합공이 형성된 수평부재와; 상기 수평부재의 중간에 결합되는 메인부재와; 메인부재의 중상단에 결합되어 연결부재와 결합되는 결합부가 형성된 보조수평부재와; 메인부재에 보조수평부재와 대칭으로 결합되며 상하 관통되는 패킹결합공이 형성된 패킹지지부재와; 수평부재와 패킹지지부재 사이에 위치하도록 메인부재에 결합한 리어어퍼암 결합브래킷을 포함하는 것이다.


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    Title :

    Vehicle rear cross member and manufacturing method of rear cross member


    Additional title:

    차량용 리어 크로스 멤버 및 리어 크로스 멤버의 제조방법


    Contributors:

    Publication date :

    2023-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING , Herstellen von Blechen, Metalldraht, -stangen, -rohren Metallprofilen oder Halbzeugen auf andere Weise als durch Walzen / B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B23K Löten , SOLDERING OR UNSOLDERING



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