发明名称 Method of raising a crane boom
摘要 The invention relates to a method of raising a telescopic boom of a mobile crane having a luffing fly jib and having a spatial boom guying. To be able to raise particularly long luffing fly jib systems together with the telescopic boom here, in accordance with the invention the telescopic boom is first telescoped outwardly to its desired length. In this position, all the telescopic sections are bolted to one another and the spatial guying is tensioned before the raising of the luffing fly jib pivotally connected to the telescopic boom.
申请公布号 US2009134108(A1) 申请公布日期 2009.05.28
申请号 US20080290248 申请日期 2008.10.29
申请人 发明人 WILLIM HANS-DIETER
分类号 B66C23/68 主分类号 B66C23/68
代理机构 代理人
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