The invention relates to a marine truss-type jib which comprises a second segmented boom located at the middle position of the jib, wherein the two ends of the second segmented boom are connected with a first segmented boom and a third segmented boom respectively by hinge pins. The jib disclosed by the invention is compact and reasonable in structure; a boom is made of a steel tube by welding and can be arranged in a segmented mode, so that the boom is easy to transport, and the weight of the jib is reduced; and when the jib operates with the wind, a steel tube truss structure can effectively reduce the wind resistance, so that a crane is more stable in operation.
Marine truss-type jib
2015-06-03
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
Truss type wing structure, assembly method and preparation method of truss type beam
Europäisches Patentamt | 2024
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