| 摘要 |
The invention relates to a travelling mechanism for an overhanging working device, especially for a building crane, comprising a chassis (15), on which the working device (1) can be mounted or is mounted, and which is provided with at least one wheel axle (3, 4) or wheels. The chassis is designed in such a way that, during maneuvering, the working device can be horizontally turned with regard to the at least one wheel axle and can be fixed with regard to the chassis in two or more different turning positions, and/or a number of wheel axles (113, 114), which can be steered independently of one another, are provided on the chassis. |
