The present invention relates to a boom of a ladder truck, which, in a process of being stretched for length extension in a state of being overlapped in multiple stages in a nearly identical cross-sectional shape, can prevent abrasion by friction at a wing portion of a transporting vehicle guiding an elevating motion, thereby significantly increasing silence and durability. To this end, the present invention relates to a boom (10), which is coupled to perform angle adjustment by means of an angle adjustment cylinder (4) in a state of being loaded on a vehicle (1), wherein, at the upper end of a vertical plate (12) which is erected at both sides, guide tracks (11) are integrally bent and formed to be overlapped in a stretchable manner in multiple stages in order to guide the guiding rollers (5) of the transporting vehicle (2) to be moved in a contacted state. Here, at the guide track (11), lubricating pads (30), which are provided to prevent friction after coming in contact with the lower surface portion of the other guide track (11) which is adjacent to the upper portion thereof, may be fixedly installed at a location in which the booms (10) are overlapped in an ejected state.

    본 발명은 사다리차의 붐대에 관한 것으로, 더 상세하게는 대략 동일 단면 형상으로 다단으로 중첩된 상태로 길이 연장을 위해 신축되는 과정에서 특히 운반카가 승강 동작을 안내하는 날개부분에서 마찰에 의한 깍임 현상을 방지하고 정숙성과 내구성을 대폭 향상시킬 수 있도록 발명된 것이다. 본 발명의 구성은 차량(1)에 탑재된 상태로 각도조절 실린더(4)로 각도 조절할 수 있게 결합되며, 양쪽으로 세워지는 수직판(12)의 상단에는 운반카(2)의 안내로울러(5)들이 접촉된 상태로 이동되는 것을 안내하기 위해 가이드트랙(11)들이 일체로 절곡 성형되어 다단으로 신축 가능하게 중첩되는 붐대(10)에 있어서, 상기 가이드트랙(11)에는 그 상부로 인접되는 다른 가이드트랙(11)의 저면부에 접촉되어 마찰을 방지하기 위한 윤활패드(30)들이 붐대(10)들이 인출된 상태에서 중첩되는 위치로 고정 설치되는 것을 특징으로 한다.


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    Titel :

    Boom of the ladder unit


    Weitere Titelangaben:

    사다리차의 붐대


    Beteiligte:
    PARK JANG HYEON (Autor:in) / SON DUK YOUNG (Autor:in) / KIM YONG GIL (Autor:in) / SEO SUNG WON (Autor:in) / YU SANG CHUL (Autor:in) / KIM DO KYUN (Autor:in)

    Erscheinungsdatum :

    2022-10-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    F16N LUBRICATING , Schmierung / 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



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