PROBLEM TO BE SOLVED: To provide a hook device which can automatically detach a hook from an engagement portion of a load using a self weight, with a small number of components.SOLUTION: A hook device 10A comprises: a suspension arm 30A for rotatably supporting a hook 50A with a hook fitting shaft 40A as a fulcrum; and a lever 60A which is rotatably connected to the suspension arm 30A with a lever shaft 63A as a fulcrum, and on which a guide part 64A is provided. The hook 50A has slide means 54A which slides along a guide hole 64A, and a guide curve part 51A4 on an outer peripheral surface on a side opposite to a side where the slide means 54A is arranged. In a triangle connecting the hook fitting shaft 40A, the lever shaft 63A and the slide means 54A, a distance between the lever shaft 63A and the slide means 54A is varied by approach of the slide means 54A to the lever shaft 63A, when the hook 50A is rolled from a close state to an open state.SELECTED DRAWING: Figure 1

    【課題】部品点数が少ないながらも、自重を利用して荷の係止部位から自動的にフックを外すことが可能なフック装置を提供する。【解決手段】フック装置10Aは、フック取付軸40Aを支点としてフック50Aを回動自在に支持する垂下アーム30Aと、レバー軸63Aを支点として垂下アーム30Aに回動自在に連結され、ガイド部64Aが設けられているレバー60Aと、を備え、フック50Aには、ガイド孔64Aに沿って摺動する摺動手段54Aが設けられ、摺動手段54Aが配置される側とは反対側の外周面にガイド湾曲部51A4が形成されており、フック取付軸40A、レバー軸63Aおよび摺動手段54Aを結ぶ三角形において、レバー軸63Aと摺動手段54Aの間の距離は、フック50Aが閉じ状態から開き状態へと転動する場合に、摺動手段54Aがレバー軸63Aに近づくことで変動する。【選択図】図1


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    Title :

    HOOK DEVICE


    Additional title:

    フック装置


    Contributors:

    Publication date :

    2018-01-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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