Movable concrete pump comprising a distribution boom

A mobile concrete pump with

• a structural frame (14) mounted on a truck undercarriage (10) of a truck chassis (12), the structural frame (14) supportable upon the ground (18) when lifting of the truck undercarriage (10), with a boom stand (22) rotatable about a vertical axis (20) provided upon the structural frame (14) and with a concrete distribution boom (24) in the form of a multi-element articulated boom, including a first boom arm (1) pivotable relative to the boom stand (22) via a first articulation linkage (A) about a horizontal articulation axis, and further boom arms (2 through 4) pivotable relative to each other via articulation linkages (B-D) about horizontal articulation axes, said boom foldable between a transport configuration and an operating configuration, wherein when in said transport condition a part of said multi-element articulated boom extends beyond the back end of said truck undercarriage (10),
• a trailer (32) connectable with the truck undercarriage (10) via a coupling member (36) in the transport configuration on the road, which includes a pivot mount rotatable about a vertical axis for receiving the part of the multi-element articulated boom extending beyond the end of the truck undercarriage (10) in the configuration of travel on the road, which multi-element articulated boom is comprised of the first boom arm (1) and the remaining boom arms (2 through 4) oriented in their folded in position relative to the first boom arm, and which forms the coupling member (36).