Abstract: The subject of the present invention is a frame (12) with a boom pedestal (17) for mounting a thick matter distribution boom (20) and having a support profile (13) for receiving and transmitting a force flow generated by the weight force of the thick matter distribution boom (20). The boom pedestal (17) has two tab elements (21, 22) which project downwards from the boom pedestal (17) and which each have a through-hole (23, 24), wherein the support profile (13) comprises a bolt receptacle (14) aligned with the through-holes, and wherein a bolt element (15) for connecting the boom pedestal (17) to the support profile (13) is guided through the through-holes (23, 24) and the bolt receptacle (14). The invention further relates to a corresponding thick matter pump equipped with said frame. The transportation effort required in production can be reduced by means of the bolt connection.

Abstract: The present invention relates to a frame for carrying a concrete-distribution boom, the frame comprising a carrier profile (13) which has: at least one force-absorption region (16, 17), for absorbing a flow of force exerted by the concrete-distribution boom; and a force-dissipation region (18), which is spaced apart in the longitudinal direction of the carrier profile (13), for dissipating the flow of force into the ground. The carrier profile (13) comprises at least two profiled sheets (20, 21), which are each bent along at least one bending axis (26, 27, 31) and are assembled along at least two connection lines (22, 23) to form a hollow profile. The carrier profile formed by bent profiled sheets is simple to produce and flexible to use.

Abstract: The supporting structure for a mobile concrete pump for connecting a distribution boom includes two support leg boxes that cross each other diagonally, and a boom pedestal attached thereto having a turret that has an opening that is surrounded at its one end at least partially by a pivot mount receptacle for a pivot bearing for pivoting the distribution boom of the concrete pump with respect to the turret. Part of the wall of the turret is formed by a side wall of the supporting leg boxes that cross each other, wherein the side walls of the supporting leg boxes are, in a first region in which same form part of the wall of the turret, free of joining points such that loads introduced via the turret directly into the side walls are distributed beyond the first region without shear load of a joining point in the side walls.

Abstract: The supporting structure for a mobile concrete pump for connecting a distribution boom includes two support leg boxes that cross each other diagonally, and a boom pedestal attached thereto having a turret that has an opening that is surrounded at its one end at least partially by a pivot mount receptacle for a pivot bearing for pivoting the distribution boom of the concrete pump with respect to the turret. Part of the wall of the turret is formed by a side wall of the supporting leg boxes that cross each other, wherein the side walls of the supporting leg boxes are, in a first region in which same form part of the wall of the turret, free of joining points such that loads introduced via the turret directly into the side walls are distributed beyond the first region without shear load of a joining point in the side walls.

Abstract: Disclosed is a vehicle-mounted concrete pump comprising a vehicle and a concrete distributor boom which can be transported thereon and which is mounted on a boom pedestal in such a way as to be able to rotate about a vertical axis and in such a way as to be able to pivot about a horizontal axis, wherein the boom pedestal is held on profile supports of an installation frame on the vehicle via connecting means. According to the disclosure, it is proposed that a screw attachment bar is arranged as connecting means between the boom pedestal and each profile support, wherein the screw attachment bar has, distributed over its length, a plurality of assembly recesses and screw channels opening into the latter for screw connections to the profile support.

Abstract: A boom for a working machine, in particular a concrete-distributing boom for guiding a concrete delivery line, with a plurality of boom arms which can be moved into a working position and which are composed at least partially as a box construction of a plurality of side walls delimiting a cavity region, and with a sealing bulkhead arrangement for sealing a cross section of the cavity region, wherein the sealing bulkhead arrangement has a bulkhead wall provided peripherally with an at least partially encircling sealing groove, and wherein the sealing groove has arranged therein an elastic seal which bears tightly on the inside against the adjoining side walls.

Abstract: This disclosure relates to a distribution boom for stationary or mobile viscous material pumps, comprising at least one boom arm having a box profile. The boom arm has two side walls which are arranged at a distance from one another and which are connected to one another by means of two transverse walls which are arranged at a distance from one another. Each side wall has a lead-through opening for a conveying line. Provision is made according to this disclosure for there to extend between the side walls a tube which is fixedly connected thereto and which opens by way of the tube ends thereof into the lead-through openings. Between the tube ends and the adjacent side wall there is arranged a respective flange which projects in an encircling manner over an outer border of the respective tube end and is welded both to the tube end and to the side wall in question.

Abstract: A boom for a working machine, in particular a concrete-distributing boom for guiding a concrete delivery line, with a plurality of boom arms which can be moved into a working position and which are composed at least partially as a box construction of a plurality of side walls delimiting a cavity region, and with a sealing bulkhead arrangement for sealing a cross section of the cavity region, wherein the sealing bulkhead arrangement has a bulkhead wall provided peripherally with an at least partially encircling sealing groove, and wherein the sealing groove has arranged therein an elastic seal which bears tightly on the inside against the adjoining side walls.

Abstract: A mast arm for a concrete distributor mast comprises an elongated box profile support composed, in at least some sections, of a lower belt, an upper belt, and two lateral walls that connect the belts, and comprising at least one partition sheet metal element arranged in a hollow cross-section of the box profile support, the partition sheet metal element being welded to the box profile support along longitudinal welding joints running along the box profile support.

Abstract: This disclosure relates to a distribution boom for stationary or mobile viscous material pumps, comprising at least one boom arm having a box profile. The boom arm has two side walls which are arranged at a distance from one another and which are connected to one another by means of two transverse walls which are arranged at a distance from one another. Each side wall has a lead-through opening for a conveying line. Provision is made according to this disclosure for there to extend between the side walls a tube which is fixedly connected thereto and which opens by way of the tube ends thereof into the lead-through openings. Between the tube ends and the adjacent side wall there is arranged a respective flange which projects in an encircling manner over an outer border of the respective tube end and is welded both to the tube end and to the side wall in question.

Abstract: This disclosure relates to an automatic concrete pump comprising a support structure, which is mounted on a vehicle, for a concrete distributing mast and at least two supporting jacks which are pivotably joined to the support structure via an articulated joint, each articulated joint comprising two support plates made from a solid material, each having a bearing bore and protruding in a forked manner at a lateral distance from each other over the edge of a defining wall of the support structure, and having a hinge bolt which traverses the bearing bores. According to this disclosure, the defining wall which faces the hinge bolt is further away from the axis of the hinge bolt in the central area between the bearing plates than in the edge areas thereof which are adjacent to the support plates.

Abstract: The invention relates to a mobile work machine, in particular a truck-mounted concrete pump, comprising a vehicle-mounted support structure and at least one swivel arm that is hinged to the support structure and is provided with two bearing brackets which project like forks and are mounted by means of a supporting bore so as to be able to rotate horizontally on a swivel arm bolt retained on the support structure. According to the invention, the bearing region between the swivel arm bolt and the bearing brackets is sealed by flexible profiled ring seals.

Abstract: Disclosed is a vehicle-mounted concrete pump comprising a vehicle and a concrete distributor boom which can be transported thereon and which is mounted on a boom pedestal in such a way as to be able to rotate about a vertical axis and in such a way as to be able to pivot about a horizontal axis, wherein the boom pedestal is held on profile supports of an installation frame on the vehicle via connecting means. According to the disclosure, it is proposed that a screw attachment bar is arranged as connecting means between the boom pedestal and each profile support, wherein the screw attachment bar has, distributed over its length, a plurality of assembly recesses and screw channels opening into the latter for screw connections to the profile support.

Abstract: A mobile concrete pump with a support structure, which can be placed on a vehicle frame of a truck chassis, for receiving functional units which form a support device and a distributing boom. The functional unit which forms the distributing boom has a rotary head mounted on a boom pedestal in a rotatable manner about a vertical axis, the boom pedestal being secured to the support structure, and the boom pedestal comprises a tank which engages into the support structure and is provided as a rotary bearing for the rotary head. Each functional unit which forms the support device has a support leg mounted in a bearing in a pivotal and/or telescopable manner, the bearing being secured to the support structure. A tank wall of the tank tapering from the top to the bottom in a truncated cone-like manner or in a truncated pyramid-like manner in the cross section, engages into the support structure and is rigidly secured, preferably welded, into the support structure.

Abstract: This disclosure relates to a mobile concrete pump with a support structure, which can be placed on a vehicle frame of a truck chassis, for receiving functional units which form a support device and a distributing boom. The functional unit which forms the distributing boom has a rotary head mounted on a boom pedestal in a rotatable manner about a vertical axis, said boom pedestal being secured to the support structure, and the boom pedestal comprises a tank which engages into the support structure and is provided as a rotary bearing for the rotary head. Each functional unit which forms the support device has a support leg mounted in a bearing in a pivotal and/or telescopable manner, said bearing being secured to the support structure.

Abstract: This disclosure relates to an automatic concrete pump comprising a support structure, which is mounted on a vehicle, for a concrete distributing mast and at least two supporting jacks which are pivotably joined to the support structure via an articulated joint, each articulated joint comprising two support plates made from a solid material, each having a bearing bore and protruding in a forked manner at a lateral distance from each other over the edge of a defining wall of the support structure, and having a hinge bolt which traverses the bearing bores. According to this disclosure, the defining wall which faces the hinge bolt is further away from the axis of the hinge bolt in the central area between the bearing plates than in the edge areas thereof which are adjacent to the support plates.

Abstract: The invention relates to a mast arm for a concrete distributor mast, comprising an elongated box profile support composed, in at least some sections, of a lower belt, an upper belt, and two lateral walls that connect the belts, and comprising at least one partition sheet metal element arranged in a hollow cross-section of the box profile support, the partition sheet metal element being welded to the box profile support along longitudinal welding joints running along the box profile support.

Abstract: The invention relates to a mobile work machine, particularly a concrete pump truck. The work machine comprises a chassis (10) that has at least four wheels (11) that belong to a wheel axle, in pairs. Furthermore, at least two support legs (20) disposed laterally on the chassis, in pairs, are provided, which legs have a telescope segment configured as an extension tube (28) articulated onto the chassis (10), and a foot part (24) that can be extended downward, in telescope-like manner, and supported on the ground, preferably by hydraulic means. In order to guarantee simple handling of the support mechanism, it is proposed, according to the invention, that the extension tube (28) of the support legs (20) is configured in the manner of a two-arm lever, forming a lower lever arm (40), with reference to the pivot axis (34), which contains the foot part (24), and an upper lever arm (42), preferably spring-supported in the pivoting-out direction.

Abstract: The invention relates to a mobile work machine, particularly a concrete pump truck. The work machine comprises a chassis (10) that has at least four wheels (11) that belong to a wheel axle, in pairs. Furthermore, at least two support legs (20) disposed laterally on the chassis, in pairs, are provided, which legs have a telescope segment configured as an extension tube (28) articulated onto the chassis (10), and a foot part (24) that can be extended downward, in telescope-like manner, and supported on the ground, preferably by hydraulic means. In order to guarantee simple handling of the support mechanism, it is proposed, according to the invention, that the extension tube (28) of the support legs (20) is configured in the manner of a two-arm lever, forming a lower lever arm (40), with reference to the pivot axis (34), which contains the foot part (24), and an upper lever arm (42), preferably spring-supported in the pivoting-out direction.

Abstract: A damping device (1), particularly for a dual mass flywheel, comprising a first component (2) and a second component and a friction device (4) arranged therebetween, wherein the second component has two distanced surfaces (5, 6) and the first component is arranged between the surfaces, also comprising a third component (8) which is also arranged between the surfaces. When the third component and first component move towards each other, they are braced in such a way that surfaces of the first and third component are pressed against surfaces of the second component.