Abstract: A pivotable display system having a traction spring tensioned to reversibly pivot the display around a pivot axis of a shaft connected to an upper portion of a display in a direction from a front side of the display toward the rear side of the display. In the event of an accident-related application of force below a threshold, the display is rotatable in a rearward direction toward an instrument panel, so that a steering column pushed in a direction towards the display avoids or at least reduces the risk of destruction of the display. In the event of accident-related application of force above the threshold, the traction spring may reversibly displace the display upwardly away from the steering column.

Abstract: An electronic unit for a vehicle, comprising surface elements arranged next to one another with a visible surface side and a surface underside is disclosed. The surface elements are fixed in a housing. The housing has a top side facing the surface underside and an underside, wherein a carrier plate is provided. Each housing on its underside has at least one protruding fixing element for fixing the surface elements to the carrier plate. The carrier plate connects the surface elements together, wherein each fixing element has an index element arranged on the fixing element between the carrier plate and the underside and is releasably connected to the fixing element. The index elements are connected to the carrier plate by substance bonding so each surface element is releasably fixed to the carrier plate, and wherein by the index elements, the surface elements are arranged relative to and level with one another.

Abstract: A display with a two-dimensional display element, which is planar or curved, and an illumination unit for the display element is disclosed. The display has a light source, a light guide and a receiving housing in which the light guide is arranged. The light guide is centered in the middle in its longitudinal direction by means of a centering element in the receiving housing.

Abstract: A display comprising a two-dimensional display element, which is planar or curved, and an illumination unit for the display element comprising a light source, a light guide and a receiving housing in which the light guide is arranged is disclosed. The light guide is preloaded in its width direction by at least one clip arranged at one of the longitudinal sides of said light guide.

Abstract: The invention relates to a method for controlling the movement of an end hose arranged on a concrete placement boom of a concrete pump with a display device arranged in the region of the end hose by means of a control device, comprising the following steps: outputting a signal for displaying a predefined movement direction to the display device; receiving a predefined speed for moving the end hose from an actuation device; and calculating and outputting control signals for controlling the concrete placement boom in such a way that the end hose is moved in the predefined movement direction at the predefined speed. The invention also relates to a corresponding control device, a system, a concrete placement boom and a computer program for controlling the movement of an end hose arranged on a concrete placement boom of a concrete pump.

Abstract: An extruder apparatus for the extrusion of a strand of building material for 3D printing of a structural part includes an extruder nozzle and at least one cover element. The extruder nozzle has a discharge opening for the discharge of the strand of building material out of the extruder apparatus. The at least one cover element is designed to cover at least a part of the discharge opening such that an opening cross section of at least one uncovered part of the discharge opening specifies a strand cross section of the discharged strand of building material.

Abstract: The invention relates to a method for detecting and verifying a working position of a mobile concrete pump, said method comprising the steps: a) setting up and at least partially supporting the concrete pump at a set-up position; b) detecting position-related data of a working position, wherein the working position is located in a region of a surface to be concreted which is remote from the set-up position; c) comparing the position-related data with a theoretical working area resulting from the set support; and d) outputting a signal as to whether the working position can be operated. This makes it possible to set up or support a mobile concrete pump in the most optimal manner possible. The invention also relates to a method for determining a suitable support setting, a measurement device, and a mobile concrete pump.

Abstract: A pipeline for conveying concrete determines a pressure in and/or a wall thickness of the pipeline, wherein a first length portion of the pipeline has a first wall thickness and a second length portion of the pipeline has a second wall thickness greater than the first wall thickness. The determination is made using a first strain gauge on an outer side of the first length portion and a second strain gauge on an outer side of the second length portion, wherein the strain gauges are each fixedly applied to the outer side of the length portions. By comparison of the measurements at the two strain gauges, it is possible to determine a wall thickness by determining a strain of the pipeline owing to a decrease in the wall thickness.

Abstract: A printing method forms a continuous strand of building material for 3D printing of a structural part via a printing system. The printing system has a printing apparatus that dispenses building material out of the printing apparatus and shapes building material to form a strand of building material, and a discontinuous building material pump that discontinuously conveys building material for discontinuously dispensing conveyed building material out of the printing apparatus. The printing method includes the steps of: a) discontinuously conveying building material via the discontinuous building material pump and discontinuously dispensing conveyed building material out of the printing apparatus and shaping conveyed building material via the printing apparatus, and b) discontinuously moving the printing apparatus during the discontinuous conveying and the discontinuous dispensing such that the dispensed and shaped building material forms a continuous strand of building material.

Abstract: A method produces a part of a building. The part of a building has at least one first region and one second region, which adjoins the first region. In the first region, an installation structure is concealed by building material. The method includes the following steps: a) dispensing building material to produce the first region and providing the building material with a marking substance before, at the same time as, and/or after the dispensing operation, and b) dispensing building material to produce the second region.

Abstract: An extruder apparatus for the extrusion of a strand of building material for 3D printing of a structural part includes an extruder nozzle and at least one inner element. The extruder nozzle has a discharge opening for the discharge of the strand of building material out of the extruder apparatus. The at least one inner element is designed for arrangement within the extruder nozzle for purposes of defining an inner edge of a flow cross section of building material within the extruder nozzle in order to specify an inner edge of a strand cross section of the discharged strand of building material.

Abstract: The invention relates to a concrete pump, comprising: —a frame; —a supporting leg, the supporting leg having a supporting foot, the supporting foot being extensible relative to the supporting leg; and—a drive for driving a movement of the supporting leg relative to the frame. A camera image of a hazard zone around the supporting leg is produced by a monitoring sensor. The drive is controlled by means of a remote control. The data information is transferred to the remote control via an interface. The invention also relates to a method for supporting a concrete pump. On the basis of the received data information, it can be determined, by means of the remote control, whether the movement of the supporting leg causes a hazard.

Abstract: An extruder head for extruding a strand of building material for 3D printing of a structural part. The extruder head has an extruder nozzle with a discharge opening for discharging the strand of building material out of the extruder head in a discharge direction, a specification element designed to be variably adjustable for variably settably specifying at least a part of a strand cross section of the strand of building material being discharged, and a setting apparatus designed for variably setting the at least one specification element. The setting apparatus is designed and arranged such that the extruder head, in a first extent direction which differs from the discharge direction, extends below the discharge opening, in the case of a maximum opening height, by at most the maximum opening height, and/or, in at least one second extent direction differing from the discharge direction, extends to the side of the discharge opening, in the case of a maximum opening width, by at most the maximum opening width.

Abstract: An apparatus for the output of a fluid process material, in particular a process material in the form of concrete, mortar or adhesive, has a distributor boom comprising a plurality of boom arms, connected to each other at joints, having a process material delivery line formed by a plurality of pipe segments, which are preferably joint-connected to each other by pipe bends and rotating couplings. The delivery line is guided along the individual boom arms and fixed thereto. A tool, which is received on the distributor boom, has a device for the output of the process material. The tool has a buffer vessel, which receives the process material from the process material delivery line, and an output element for the output of the process material, fed from the buffer vessel, at an output location.

Abstract: This disclosure relates to a drivable working machine, including a vehicle, a concrete placing boom that can be rotated on a vehicle-fixed carrying structure by means of a slewing gear, and a plurality of supporting legs arranged on the carrying structure for supporting the carrying structure in a working position. A compensation device is provided to compensate a rotational deflection of the carrying structure from the working position. The compensation device has a sensing unit for sensing the rotational deflection and acts on at least one supporting leg by means of an associated actuator to reduce the rotational deflection.

Abstract: This disclosure relates to a method and a device for controlling the movement of a concrete-distributing boom, the boom base of which is mounted on a slewing gear so as to be rotatable about a vertical axis of rotation, the slewing gear being actuated by means of a rotary drive and, if necessary, a brake in order to bring the boom into a desired angular position, it being possible for an undesired natural oscillation of the boom to occur in the horizontal direction upon accelerating and/or decelerating the boom. According to this disclosure, it is proposed that the rotary drive be temporarily switched to a freewheel mode in the range of at least one peak of oscillation of the natural oscillation, so that the slewing gear is freely movable and the natural oscillation is reduced.

Abstract: This disclosure relates to a drivable working machine, including a vehicle, a concrete placing boom that can be rotated on a vehicle-fixed carrying structure by means of a slewing gear, and a plurality of supporting legs arranged on the carrying structure for supporting the carrying structure in a working position. A compensation device is provided to compensate a rotational deflection of the carrying structure from the working position. The compensation device has a sensing unit for sensing the rotational deflection and acts on at least one supporting leg by means of an associated actuator to reduce the rotational deflection.

Abstract: The present invention is related to a dispenser, which is filled with a gel comprising a C1 to C10 carboxylic acid and a thickener, comprising a polyester membrane. The invention further relates to said gel. It also relates to s method for preparing said dispenser, comprising a) mixing C1 to C10 carboxylic acid and the thickener, and b) filling the mixture of step a) into the dispenser. The invention further relates to a method for the control of mites in bee hives comprising putting said dispenser inside or near a bee hive. It also relates to a use of the dispenser or the gel for the control of mites or of nosema in agricultural, industrial or domestic environment.

Abstract: The present invention is related to a dispenser, which is filled with a gel comprising a C1 to C10 carboxylic acid and a thickener, comprising a polyester membrane. The invention further relates to said gel. It also relates to s method for preparing said dispenser, comprising a) mixing C1 to C10 carboxylic acid and the thickener, and b) filling the mixture of step a) into the dispenser. The invention further relates to a method for the control of mites in bee hives comprising putting said dispenser inside or near a bee hive. It also relates to a use of the dispenser or the gel for the control of mites or of nosema in agricultural, industrial or domestic environment.