| 摘要 |
Extendable telescopic crane with crane operator's cab (4) which with a fastening part (5) can alternatively be fastened to the top end of the bottom, fixed, outer mast part (2) or the top end of the extendable, inner, top mast part (3). The fastening part (5) fastened to the cab (4) consists of a vertical flat steel bar with a vertically running elongated hole (6), a bore (7), and a dovetail slot (8) open at the edge. The flat bar can be mounted between a bracket attached to the top end of the bottom mast (2) or a bracket attached to the top end of the top mast (3) on a fixed pivot (11) on the supporting device (9) of the bottom mast (2) and can be held in place with a removable pivot (14) which is also used for fastening to the bracket of the top mast (3). <IMAGE>
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