The present invention relates to an aerial work platform for working in a high place and, more specifically, to an aerial work platform comprising a main foothold, an expandable auxiliary foothold, and an expansion control unit provided on the main foothold to control the auxiliary foothold to be retracted. The aerial work platform comprises: a movable guide frame provided on both sides of an auxiliary frame of the auxiliary foothold; a fixed guide frame installed to correspond to the movable guide frame on a main frame of the main foothold; a driving chain fixated to the movable guide frame to maintain a constant tension; an expansion driving unit provided in the fixated guide frame and having a sprocket engaged with the driving chain to move the movable guide frame; a movable part roller rotationally installed on an end portion of the movable guide frame; a fixed part roller rotationally installed on an outer end portion of the fixated guide frame; a fixed part guide rail provided in the fixed guide frame to guide the movable part roller; and an expansion part guide rail formed at the bottom of the auxiliary frame to guide the fixed part roller, wherein the auxiliary foothold is stably moved by being guided at two points of the movable guide frame while being supported on both sides in the width direction of the auxiliary frame.

    본 발명은 높은 곳에서의 작업을 위한 고소작업대에 관한 것으로서, 주발판과 확장 가능한 보조발판 및 주발판에 구비되어 보조발판을 출몰 제어하는 확장 조종부를 포함하는 고소작업대에 있어서, 보조발판의 보조프레임 양측에 각각 구비된 가동가이드프레임과, 주발판의 메인프레임에 가동가이드프레임에 대응하도록 설치되는 고정가이드프레임과, 일정 장력을 유지하도록 가동가이드프레임에 고정되는 구동체인과, 고정가이드프레임에 구비되고 구동체인에 치합되는 스프로킷을 구비하여 가동가이드프레임을 이동시키는 확장구동부와, 가동가이드프레임의 끝단부에 회전 가능하게 설치되는 가동부롤러와, 고정가이드프레임의 외측 끝단부에 회전가능하게 설치되는 고정부롤러와, 가동부롤러를 안내하도록 고정가이드프레임에 구비된 고정부가이드레일과, 고정부롤러를 안내하도록 보조프레임의 저부에 형성된 확장부가이드레일을 포함하며, 보조프레임의 폭방향 양측에서 지지되면서 가동가이드프레임의 2개소에서 안내되어 보조발판이 안정적으로 움직이도록 구성된 고소작업대를 제공한다.


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    Title :

    High-place Working Platform


    Additional title:

    고소작업대


    Contributors:

    Publication date :

    2017-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / A01D Ernten , HARVESTING



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