JPH0465289U

JPH0465289U -

Info

Publication number: JPH0465289U
Application number: JP10885790U
Authority: JP
Priority date: 1990-10-16
Filing date: 1990-10-16
Publication date: 1992-06-05

Description

[Brief explanation of the drawing]

第１図及び第２図は、従来の移動式クレーンの
フツクブロツク格納固定装置の説明図であつて、
第１図は、移動式クレーンのブーム先端部および
フツクブロツクの説明図である。第２図は、第１
図のＸ−Ｘ矢視図である。尚第１図においてフツ
クブロツク部分は、第２図におけるＹ−Ｙ断面図
として示されている。第３図および第４図は、本
考案の移動式クレーンのフツクブロツク格納固定
装置の説明図であつて、第３図は、フツクブロツ
ク格納固定装置Ｂが係合してフツクブロツクが傾
斜格納位置に固定された状態の側面図、第４図は
、フツクブロツク格納固定装置Ｂの係合が解除さ
れる途中の側面図である。ブーム……１、ワイヤーロープ……２、先端滑
車……３、フツクブロツク……４、フツクブロツ
ク滑車……５、滑車支持枠……６、トラニオン…
…７、ハツカー……８、格納アーム……９、ハツ
カー揺動固定手段……１０、フツクブロツク格納
固定装置……Ｂ。 FIGS. 1 and 2 are explanatory diagrams of a conventional mobile crane hoist block storage and fixing device,
FIG. 1 is an explanatory diagram of the boom tip and hook block of a mobile crane. Figure 2 shows the first
It is a XX arrow view of a figure. In FIG. 1, the hook block portion is shown as a YY sectional view in FIG. 3 and 4 are explanatory diagrams of the hook block storage and fixing device of the mobile crane of the present invention, and FIG. 3 shows the hook block storage and fixing device B being engaged and the hook block being fixed in the inclined storage position. FIG. 4 is a side view of the hook block storage and fixing device B in the middle of being disengaged. Boom...1, Wire rope...2, Tip pulley...3, Hook block...4, Hook block pulley...5, Pulley support frame...6, Trunnion...
...7. Hook block...8. Storage arm...9. Hook block swing fixing means...10. Hook block storage and fixing device...B.

Claims

[Claims for Utility Model Registration] A pulley support frame 6 that rotatably supports the hook block pulley 5, and a pulley support frame 6 that is swingably attached to the lower end of the pulley support frame 6 via a trunnion 7 that is rotatably disposed. Block 4 consisting of
A Weiler rope 2 from a winch provided at the base end of the boom 1 is passed around the hook block pulley 5 via a tip pulley 3 placed at the tip of the boom 1, and the tip is placed on the tip of the boom 1. A storage arm 9 is swingably suspended via a swinging fulcrum at a position closer to the boom tip side than the support shaft of the pulley 3, and when the hook block 4 is hoisted up, the pulley support frame 6 engages with its lower end. A storage arm 9 is attached which tilts toward the base end of the boom 1 together with the pulley support frame 6 by further hoisting movement of the hook block 4 thereafter, and moves the hook block 4 to an inclined storage position close to the bottom surface of the boom 1. The mobile crane, in particular, the above-mentioned hook block 4 has a structure that allows the swinging position of the hooker 8 relative to the pulley support frame 6 to be brought into a freely suspended state in conjunction with the engagement of the pulley support frame 6 with the lower end of the storage arm 9. A hook block storing and fixing device for a mobile crane is provided with a hook block swinging fixing means 10 for fixing the hook block at a position corresponding to the free hanging state, which is the position of . A fixing device B which automatically engages the hook block 4 fixed at a position corresponding to the free hanging state by moving to the tilted storage position as the storage arm 9 rotates to store and fix the hook block 4 in the tilted storage position. The disengagement is made by the rotation of the trunnion 7 based on the weight of the hooker 8 as the pulley support frame 6 and the lower end of the storage arm 9 are disengaged and disengaged by lowering the hook block 4. A mobile crane storage and fixing device for a mobile crane.