Vehicle i.e. truck-mounted concrete pump, supporting device, has knuckle unit arranged such that supporting arm is pivotable around secondary axles, which form specific angle with respect to primary axles, where arm comprises stretcher bar

摘要

The device (18) has a supporting arm (22) e.g. telescopic arm, pivotable around primary axles (32) over a knuckle unit (26) articulated at an undercarriage (12) fastened and moved between a transport position and a working position. The knuckle unit is arranged such that the supporting arm is pivotable around secondary axles (40), which form an angle of 90 degrees with respect to the primary axles. The supporting arm comprises a stretcher bar (48) for connecting the device to bottom.