To provide a crane capable of reducing time and effort required for removing a hook block from an engaging tool or engaging the hook block with the engaging tool.SOLUTION: A crane 10 comprises a travel body 11, a boom 32 mounted pivotably, derrickably, and telescopically on the travel body 11 via a revolving frame 31, a wire rope 42 extending from a drum 41 and wrapped around a tip 43 of the boom 32, a hook block 40 provided at the tip of the wire rope 42 and hanging from the tip 43 of the boom 32, a roller 56 installed protrudingly to the side of the hook block 40, and an engaging tool 80 to be engaged with the roller 56. The engaging tool 80 has a casing 81 in which a storage chamber 67 with an opening 66 at the top is defined, and a rotating body 82 housed in the storage chamber 67 in the state where it can rotate around a predetermined axis 68 and in which a groove 69 communicating with the opening 66 at a predetermined rotating position and through which the roller 56 can enter is formed.SELECTED DRAWING: Figure 9
【課題】フックブロックの係合具に対する取り外しや係合に要する手間を軽減することができるクレーンを提供する。【解決手段】クレーン10は、走行体11と、走行体11に旋回フレーム31を介して旋回、起伏及び伸縮可能に搭載されたブーム32と、ドラム41から延び出てブーム32の先端部43に巻きかけられたワイヤロープ42と、ワイヤロープ42の先端に設けられてブーム32の先端部43から垂下するフックブロック40と、フックブロック40の側面に突設されたローラ56と、ローラ56が係合する係合具80とを備える。係合具80は、上部に開口66を有する収容室67が区画されたケーシング81と、所定の軸68を中心に回転可能な状態で収容室67に収容され、所定の回転位置で開口66と連通し且つローラ56が進入可能な溝69が形成される回転体82とを有する。【選択図】図9
CRANE
クレーン
2021-10-07
Patent
Elektronische Ressource
Japanisch
IPC: | B66C Krane , CRANES |
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