Provided are a foldable racker adjustable in length and a foldable derrick having the same. The foldable racker includes: a first column extended in a vertical direction; a second column slidingly coupled to the first column to be folded or unfolded while moving in parallel with the first column; and a first arm unit maintaining a connecting state with at least one of the first column and the second column, moving in parallel along the first column or the second column, and including a first arm protruding from the outside.

    길이조정이 가능한 접철식 래커 및 그를 포함하는 접철식 데릭이 제공된다. 접철식 래커는, 수직방향으로 연장된 제1컬럼, 제1컬럼에 슬라이딩 가능하게 결합되어 제1컬럼과 평행하게 움직이며 접히거나 펼쳐지는 제2컬럼, 및 제1컬럼 및 제2컬럼 중 적어도 하나와 연결상태를 유지하며 제1컬럼 또는 제2컬럼을 따라서 평행 이동하고, 외측으로 돌출된 제1암을 포함하는 제1암유닛을 포함한다.


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    Title :

    Foldable racker and foldable derrick having the same


    Additional title:

    접철식 래커 및 그를 포함하는 접철식 데릭


    Contributors:
    KANG HAN BYUL (author) / KIM NAM GYUN (author) / KIM BYUNGMAN (author) / SONG MYUNGKWAN (author) / YANG SUNG WAN (author) / OH HWANYOUP (author) / LEE DONGHOON (author) / JEON JUNHWAN (author) / CHOI BONGKYUN (author)

    Publication date :

    2019-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren



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