The present invention relates to a derrick crane for bridge construction. The derrick crane can be reused without being disposed of after construction of a bridge is completed, by increasing and reducing the size of the derrick crane as necessary. A rotary member is installed in an upper part of a lower main body and a lower part of a square main body of the derrick crane to prevent a bridge deck from being moved and supplied to the front side by a movable arm unit. The bridge deck is supplied by freely rotating at 360 degrees by using the movable arm unit installed in first and second inclined rotation units installed in the square main body with the rotary member. A rail connected to moving wheels formed in the lower main body is installed in the upper part of an upper plate member to be detached and moved so that the rail can move to other bridge construction places anytime. So, the derrick crane for bridge construction can move regardless of place.

    본 발명은 필요에 따라 데릭크레인의 크기를 증감 가능하도록 하여 하나의 교량의 건설이 완료된 후에도 폐기되지 않도록 재사용할 수 있도록하고, 교량상판을 가동팔부로 전방으로만 이동공급하는 폐단을 벗어나 본 발명의 데릭크레인 4각형본체의 하부와 하부본체의 상부에 회전부재가 설치되어 회전부재와 함께 4각형본체에 설치된 제1,2경사회전부에 설치된 가동팔부로 교량상판을 360도로 자유롭게 회전하여 공급할 수 있도록하며, 하부본체에 형성된 이동바퀴들과 결합되는 레일을 상판부재의 상부에서 탈부착 이동가능하게 설치되도록 하여 언제든지 레일을 다른 교량건설장소로 이동가능하게하여 본 발명의 데릭크레인을 장소에 구애받음없이 이동가능하도록 한 교량건설용 데릭크레인에 관한 것이다.


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    Title :

    Derrick crane


    Additional title:

    교량건설용 데릭크레인


    Contributors:
    AN HAN BAE (author)

    Publication date :

    2017-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66C Krane , CRANES



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