首页>
外国专利>
Transportable crane with folding arm - has outer arm with pivoted struts and flexible ties for collapsing to compact shape
Transportable crane with folding arm - has outer arm with pivoted struts and flexible ties for collapsing to compact shape
展开▼
机译:带折叠臂的便携式起重机-外臂带有可旋转的支柱和柔性扎带,可折叠成紧凑的形状
展开▼
页面导航
摘要
著录项
相似文献
摘要
A transportable crane has its arm made in two sections (1,2) which are hinged together. The inner part consists of a braced girder with an upper beam (3') and two lower beams (6') connected by inclined struts (8). The outer part is also a braced girder but is braced alternately with rigid struts (10) and flexible tie cables (11). The struts and ties are connected by pivoted joints (14) to the upper and lower beams (3,6). When the crane is being transported the connection (22) is unbolted and upper beam is swung down between the two lower beams. The outer arm is then swung about the hinge to lie compactly along the side of the inner arm.
展开▼