| 摘要 |
The invention relates to a mobile concrete pump having a chassis-fastened supporting device (38). The supporting device (38) comprises at least two supporting boom boxes (54, 56), which are arranged in such a way that the supporting boom boxes are rigid or pivotable about a vertical pivot axis in relation to the chassis (12), and one telescopic boom (70) per supporting boom box. The telescopic booms are movably guided in the supporting boom boxes (54, 56), and each telescopic boom bears a supporting leg (40) at the free end of the telescopic boom. Each telescopic boom (70) has an upper flange (76), which lies against a supporting and guiding surface (74) located in the interior of the associated supporting boom box (54, 56). The invention is characterized in that the supporting and guiding surface (74) of the supporting boom box (54, 56) and the upper flange (76) of the telescopic boom (70) each have at least two guide segments (74', 74", 76', 76") that include an angle with each other in the cross-section. The guide segments engage with each other in a complementary manner and lie against each other in such a way that the guide segments can be moved in the telescoping direction. |
