PROBLEM TO BE SOLVED: To provide a method for rearward inclining operation on a mast during assembly of a crane and a crane which enable safe performance of rearward inclining operation on the mast.SOLUTION: Provided is a method for rearward inclining operation on a mast 4 of a crane 1 which comprises a crane body 10, a boom 3 capable of falling down forward and standing backward, a mast 4 capable of throwing down and standing forward and throwing down backward, a first rope 5 capable of adjusting a length between a tip 32 of the boom 3 and a tip 42 of the mast 4, a second rope 6 capable of adjusting an angle of the mast 4, a first tension detection means 71 for detecting a tension of the first rope 5, and a second tension detection means 72 for detecting a tension of the second rope 6. An operation for throwing down the mast 4 backward from a condition such that the boom 3 is fallen down on a front ground and the mast 4 throws down forward or stands on the basis of tension information for the first rope 5 and tension information for the second rope 6.SELECTED DRAWING: Figure 1

    【課題】安全にマストの後傾作業を行うことができる、クレーンの組み立て時におけるマストの後傾作業の方法およびクレーンを提供する。【解決手段】クレーン本体10と、前方への倒伏および後方への起立が可能となるブーム3と、前方への傾倒、起立および後方への傾倒が可能となるマスト4と、ブーム3の先端部32とマスト4の先端部42との間の長さを調節可能とする第1ロープ5と、マスト4の角度を調節可能とする第2ロープ6と、第1ロープ5の張力を検出する第1張力検出手段71と、第2ロープ6の張力を検出する第2張力検出手段72と、を備えたクレーン1のマスト4の後傾作業の方法である。第1ロープ5の張力情報と第2ロープ6の張力情報とに基いて、ブーム3が前方の地面に倒伏しマスト4が前方へ傾倒または起立した状態から、マスト4を後方へ傾倒させる作業を行う。【選択図】図1


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    Title :

    METHOD FOR REARWARD INCLINING OPERATION ON MAST DURING ASSEMBLY OF CRANE, AND CRANE


    Additional title:

    クレーンの組み立て時におけるマストの後傾作業の方法およびクレーン


    Contributors:

    Publication date :

    2018-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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