To provide a boom device and a crane capable of suppressing the generation of damage.SOLUTION: A boom device is equipped with an extension jib EJ disposed at a tip end of a boom 61, a boom side coupling portion 62 attached to a tip end of the boom 61, a jib side coupling portion 63 attached to a base end of the extension jib EJ, a hook body portion 11 holding an object of loading, and a hook 10 attached to a wire rope W and including a wire socket 12 capable of connecting the hook body portion 11. The boom side coupling portion 62 and the jib side coupling portion 63 couple the boom 61 and the extension jib EJ so that a posture of the extension jib EJ can change between a storage posture and a work posture. The jib side coupling portion 63 is equipped with a hook fixing member 50 capable of attaching the hook 10 attached to the wire rope W in the storage posture. The extension jib EJ is equipped with a socket fixing member 40 capable of attaching a wire socket 12 attached to the wire rope W in the storage posture.SELECTED DRAWING: Figure 5
【課題】損傷の発生を抑制することが可能なブーム装置とクレーンを提供する。【解決手段】ブーム61の先端に配置される延長ジブEJと、ブーム61の先端に取り付けたブーム側連結部62と、延長ジブEJの基端に取り付けたジブ側連結部63と、荷役の対象物を保持するフック本体部11と、ワイヤロープWに取り付けられ、且つフック本体部11を接続可能なワイヤソケット12を含むフック10を備え、ブーム側連結部62とジブ側連結部63は、延長ジブEJの姿勢を格納姿勢と作業姿勢に変化可能な状態でブーム61と延長ジブEJを連結し、ジブ側連結部63は、格納姿勢でワイヤロープWに取り付けられたフック10を取り付け可能なフック固定部材50を備え、延長ジブEJは、格納姿勢でワイヤロープWに取り付けられたワイヤソケット12を取り付け可能なソケット固定部材40を備える。【選択図】図5
BOOM DEVICE AND CRANE EQUIPPED WITH THE BOOM DEVICE
ブーム装置、ブーム装置を備えるクレーン
2024-05-07
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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