It is impossible to completely eliminate a rotational force of a deflective main boom (111) with a couple device of a counter weight (112) flatly and simply restrained on a counter-load side of the main boom (111) used in a conventional method. In the present invention, a main boom (5) and a hinge (17) comprising a knuckle joint of a pillar (9) absorb a moment of the main boom (5) with a moment expanded in a counter weight (4) and a three-step lever device such that a vertical force is applied to the pillar (9) to entirely balance and stabilize a pillar jib crane.

    종래방식 메인붐(111)의 반부하측에 평면적이고 단순하게 구속한 균형추(112)의 우력(偶力)장치(Counter weight)로서는, 편향적인 메인붐(111)의 회전력을 완전하게 해소할 수 없는 것이다. 본 발명에서는 메인붐(5)과 기둥(9)의 직각(90°)관절을 구성한 힌지(17)장치는 균형추(4)와 3단계의 지렛대장치에서 확대한 역률로서, 메인붐(5)의 역률을 흡수하여서, 기둥(9)에 수직력을 작용하여 필러지브크레인을 전체적으로 균형 하여서 안정하는 것이 특징이다.


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    Title :

    .Counter-weight and Lever device on the Pillar Jib crane


    Additional title:

    필러지브크레인의 지렛대와 균형추 장치


    Contributors:

    Publication date :

    2017-01-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66C Krane , CRANES




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