| 摘要 |
The invention relates to a telescopic crane jib-slide block with at least tw o mutually cooperating slide block parts (1, 5), which are mutually pre-tensioned and mutually displaceable on an oblique surface so that the total width of the slide block varies depending on the mutual position of the slide block parts (1, 5). It further relates to a telescopic crane jib-slide block arrangement incorporating such a slide block, which slide block is disposed on an inner telescopic part, in particular on the base piece (18) of an inne r telescopic part so that an outer telescopic part (21) is able to slide on it. |
