The present invention relates to a winch crane capable of lifting and moving a heavy object, comprising a boom assembly. While an access passage is formed inside a boom coupled in multiple stages, the boom is easily withdrawn, and a connecting portion of a neighboring boom is elastically supported by an elastic support means provided in the access passage. Therefore, even when exposed to strong wind or work of a crane such as unloading a heavy object or rotating a boom, the drawn boom does not flow and the shock caused by an external force can be buffered, thereby preventing damage or noise of the boom.

    본 발명은 중량물을 승강하고 이동시킬 수 있는 윈치 크레인에 관한 것으로, 다단으로 결합된 붐 내부에 출입통로가 형성되어 붐이 용이하게 인출되면서도 출입통로에 구비된 탄성지지 수단에 의하여 이웃하는 붐의 연결부위가 탄성적으로 지지된다. 따라서, 중량물 하역이나 붐의 회전과 같은 크레인의 작업이나 강한 바람에 노출되더라도 인출된 붐이 유동되지 않고 외력에 의한 충격을 완충할 수 있어 붐의 파손이나 소음을 방지할 수 있다.


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    Title :

    Winch crane with elastic support for multi-stage boom


    Additional title:

    다단식 붐의 탄성지지 수단을 구비한 윈치 크레인


    Contributors:

    Publication date :

    2021-05-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66C Krane , CRANES



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