To provide an advantageous lifting machine for reducing burden on a worker who lifts and suspends suspended loads.SOLUTION: In a lever mechanism 36, an oscillation center of a main arm 40 is a fulcrum P1, a point of action P2 is on the point where a lifting wire 30 is joined to a guide arm 4002 for a lifting wire movement, and a force point P3 is on the point where a traction wire 32 is joined to a guide arm 4004 for a traction wire movement. The lever mechanism 36 constitutes a second-class lever mechanism 36A at the standby position of a hanging tool 38. The lever mechanism 36 is converted to a third-class lever mechanism 36B from the second-class lever mechanism 36A when a reducing lever 3802 of the hanging tool 38 in the standby position is grasped.SELECTED DRAWING: Figure 3

    【課題】吊り荷の吊り上げ、吊り下げを行なう作業者の負担を軽減する上で有利な吊り上げ機を提供すること。【解決手段】てこ機構36では、メインアーム40の揺動中心が支点P1であり、吊り上げワイヤ30が吊り上げワイヤ移動用ガイドアーム4002に結合された箇所が作用点P2であり、牽引力用ワイヤ32が牽引力用ワイヤ移動用ガイドアーム4004に結合された箇所が力点P3となっている。吊り下げ具38の待機位置で、てこ機構36は第2種のてこ機構36Aを構成している。待機位置に位置する吊り下げ具38の軽減レバー3802を把持すると、てこ機構36は第2種のてこ機構36Aから第3種のてこ機構36Bに変換される。【選択図】図3


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    Title :

    LIFTING MACHINE


    Additional title:

    吊り上げ機


    Contributors:

    Publication date :

    2023-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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



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