Abstract: The invention relates to a driving device, in particular a screw foundation driving device, having an anchor with a rotational axis for receiving a driving tool, an outer rotor, which is arranged concentrically to the rotational axis of the anchor and can be rotationally driven by a motor, and an impact device from which an impact energy can be introduced into the anchor. By means of rolling bodies arranged circumferentially on the anchor, the anchor is mounted in the outer rotor in such a way that a relative movement between the anchor and the outer rotor can be executed in the direction of the rotational axis and a torque about the rotational axis can be introduced from the outer rotor to the anchor via the rolling bearings.

Abstract: A method of reshaping a cylindrical pipe to a ground screw foundation for attaching an object to the ground includes a drawing unit and a working tool having a plurality of press roll disks or press roll disk segments. The press roll disks or press roll disk segments are disposed radially around a longitudinal axis of a holder for the cylindrical pipe, and pivotably around shafts extending at a fixed distance to the longitudinal axis transversely and tangentially relative to the longitudinal axis. A cylindrical pipe is inserted into a holder. The cylindrical pipe or the working tool with the drawing unit is drawn such that a relative movement between the pipe and the working tool is created.

Abstract: Disclosed is a method for driving a screwable foundation, which comprises a thread-type external helix that has a pitch on the outer contour thereof, into the ground. In said method, a striking force is applied to the screwable foundation in the driving direction in alternation with or at least temporarily simultaneously with a torque when the screwable foundation is driven into the ground.

Abstract: The invention relates to a method and device for producing conical sections in cylindrical pipes of screw-in foundations by drawing. The device comprises a plurality of press rolling disks (segments) disposed radially about a longitudinal axis of a receptacle for the cylindrical pipe to drawn, pivotable about axes extending transverse and tangential to the longitudinal axis and designed such that the outer circumferential surfaces of the press roller disks (segments) form a developed cone. The device further comprises a drawing die for drawing the pipe along the longitudinal axis through the press roller disks (segments), such that the conical section can be formed by means of the outer circumferential surfaces rolling on the pipe during drawing. Spring elements clamp the press roller disks (segments) against the pipe. A rotary device rotates the pipe for uniform processing thereof.

Abstract: An erection system for the attachment of solar panels arranged areally adjacent one another and inclined toward the sun. The solar panels are held in rows by a multiplicity of holding members that are fastened to posts anchored in the ground by base members arranged substantially orthogonally with respect to the holding members and which have downwardly open U-profiles. The base members can be connected to the posts via mounting units. Each mounting unit has two clamping shells with semicircular recesses for abutment against the posts and substantially planar abutment surfaces for abutment against the side surfaces of the U-profile. Bores are arranged in the abutment surfaces of the clamping shells and corresponding bores are arranged in the side surfaces of the base member such that the base members can be fixed in a frictionally locking and/or positively locking manner to the posts by screw connections extending through the bores.

Abstract: A vehicle operated in a self-propelled program-controlled manner, in particular without a driver, for automatically measuring, marking and/or pre-drilling predetermined desired positions for foundation devices to be introduced into the ground, possibly also for introducing the foundation devices themselves. The vehicle includes a working device, which can be pivoted about pivoting axes and is equipped with a device for automatically detecting and correcting misalignments of the axis thereof and which brings the vehicle to the desired positions with a locating device, which establishes the actual position thereof, and a data processing system, which is loaded with the desired positions in such a way that it can perform the prescribed working steps in a program-controlled manner.

Abstract: A screwing device on a cantilever arm of a construction vehicle for screwing foundation installations into the ground has a suspension, a screw head, and an actuator. The actuator can be pivoted about two axes extending parallel to one another and transversely with respect to the longitudinal axis of the screw head. The articulation point on the screw head follows the motion of the pivoting lever on the longitudinal axis due to a migration of the articulation point from the longitudinal axis of the screw head occurring due to pivoting of the pivoting lever about the axes while screwing the foundation installation into the ground. The axes extend transverse to the longitudinal direction of the cantilever arm and are supplemented by at least one additional axis supported transversely with respect to said axes. This compensates for a migration of the articulation point in each direction.

Abstract: A vehicle operated in a self-propelled program-controlled manner, in particular without a driver, for automatically measuring, marking and/or pre-drilling predetermined desired positions for foundation devices to be introduced into the ground, possibly also for introducing the foundation devices themselves. The vehicle includes a working device, which can be pivoted about pivoting axes and is equipped with a device for automatically detecting and correcting misalignments of the axis thereof and which brings the vehicle to the desired positions with a locating device, which establishes the actual position thereof, and a data processing system, which is loaded with the desired positions in such a way that it can perform the prescribed working steps in a program-controlled manner.

Abstract: A screw foundation system for aligning and fastening a rod- or post-like object in the ground includes a sleeve-like plastic receiving part which can be screwed into the ground and which, in the fastened state, accommodates an end region of the rod- or post-like, object and surrounds their periphery of the object with a distance at least in certain portions; and a curable filling compound which, in the fastened state, fills the space between the end region of the rod- or post-like object and the inner contour of the receiving part, wherein the inner contour has undercuts for anchoring the cured filling compound. The screw foundation system can include a screwing-in tool having a dimensionally stable fitting core which can be inserted into the receiving part in order to screw in the latter.

Abstract: An erection system for the attachment of solar panels arranged areally adjacent one another and inclined toward the sun. The solar panels are held in rows by a multiplicity of holding members that are fastened to posts anchored in the ground by base members arranged substantially orthogonally with respect to the holding members and which have downwardly open U-profiles. The base members can be connected to the posts via mounting units. Each mounting unit has two clamping shells with semicircular recesses for abutment against the posts and substantially planar abutment surfaces for abutment against the side surfaces of the U-profile. Bores are arranged in the abutment surfaces of the clamping shells and corresponding bores are arranged in the side surfaces of the base member such that the base members can be fixed in a frictionally locking and/or positively locking manner to the posts by screw connections extending through the bores.

Abstract: An apparatus for placing foundation devices and/or pipes and/or augers in the ground, as an attachment to be attached to the boom of a construction vehicle, including a mounting hinged to a coupling point of the boom, and a drive head, which is rigidly connected to the mounting and configured as a rotational driving and/or drilling and/or impact drilling and/or pile-driving drive and to which the foundation device/pipe/auger for placement in the ground can be coupled. The coupling point can be displaced with respect to the drive head in at least one first direction which is transverse to the longitudinal axis of the foundation device/pipe/auger, and optionally in a second direction, which is transverse to the first direction. The mounting can be a universal joint in which a first joint axis extends so that a first and a second joint part can be displaced thereon, relative to each other, in the first direction, so as to displace the coupling point.

Abstract: A foundation screw with a tubular basic body having an encompassing helical screw thread for screwing into the ground. The foundation screw has a substantially cylindrical first longitudinal portion and a tapering second longitudinal portion. The first longitudinal portion merges tangentially with a convex jacket region of the second longitudinal portion having a radius of convexity R1, which has at least one value of the tube diameter D of the first longitudinal portion.

Abstract: The invention relates to a floor anchor (10) made of steel pipe. The floor anchor comprises a hollow shaft segment (14) having an external thread (16) at least in segments, and a head segment adjacent to the shaft segment (14) and facing downward in the anchored state in the floor. The head segment (12) is designed as a drill head and comprises elements for removing earth.

Abstract: The invention relates to a floor anchor (10) made of steel pipe. The floor anchor comprises a hollow shaft segment (14) having an external thread (16) at least in segments, and a head segment adjacent to the shaft segment (14) and facing downward in the anchored state in the floor. The head segment (12) is designed as a drill head and comprises elements for removing earth.

Abstract: A holding device for rod-shaped components comprising holding elements that move through a series of positions. To hold a component the holding elements move in sequence from open releasing positions, to contacting positions, to aligning positions and finally to fully closed positions. Holding elements in aligning positions permit the held component to be moved and aligned even though the holding elements are more firmly in contact with the component than in their contacting positions. Slide-resistant surfaces formed on the holding elements are made in such a way that in the case of the movement of a misaligned component, sliding resistance is intensified in one direction while sliding resistance is reduced in another direction to permit movement of the component in that direction into the desired alignment. The holding elements are moved in the opposite sequence to release a component.

Abstract: Described are a tensioning device and a stand having a tensioning device of this type. In a stand for clamping rod-shaped units (Christmas trees), a flexible force transfer element (wire rope) (4) is wound on a rotatable tensioning body (5) and thus tightened. The rotatable tensioning body (5) is rotated about its rotation axis (18) by means of a drive wheel (7) which is connected non-rotatably to the tensioning body and whose diameter is several times larger than that of the tensioning body (5). A safety catch (6) prevents the tensioning body (5) from turning backwards automatically into the locking position and allows the tensioning body (5) to turn backwards into the release position.

Abstract: Tree stand in which a tensioning device can move a plurality of retaining elements that are arranged about the axis of the receiving area of the stand, by means of a flexible force transmission element that can be loaded with tension, out of a loose position in which the trunk can be adjusted into a support position in which the retaining elements are positioned largely force-free on the trunk, then into an alignment position in which the retaining elements hold the trunk so that it can be aligned, finally into a retaining position in which the trunk is clamped upright, whereby the lower retaining force of the plurality of retaining elements, which force is required in the alignment position, is produced by an elastic buffer element allocated to the force transmission element.

Abstract: A stand for holding a rod-shaped unit, particularly a Christmas tree, comprises a foot part, a seating region for the tree trunk, said seating region being located on the foot part, several holding elements, which are supported around an axis of symmetry of the stand and which are pivotable against spring force out of an open position into a holding position, their pivoting planes intersecting approximately in the axis of symmetry, and at least one flexible force transfer element, particularly a steel cable, which can be actuated by means of a tensioning device and which can be loaded in tension and which engages around the holding elements and which, when tightened, causes the holding elements to pivot towards the axis of symmetry into the holding position.

Abstract: The tensioning device of a tree stand has a tension lever, a ratchet wheel and a tensioning body coaxial therewith, and a lever catch that is movably guided on the tension lever like a ratchet or one-way coupling and that is detachably mechanically linked to the ratchet wheel and that when the tension lever is actuated to create tension engages the teeth of the ratchet wheel such that a part connected to elements for retaining the tree is wound on the tensioning body, thus securely clamping the tree. The tensioning device furthermore has a first catch for engaging the teeth of the ratchet wheel and blocks the latter's rotation in the sense of unwinding of the tensioning body. For each release actuation of the tension lever, the first catch disengages from the teeth of the ratchet wheel, whereby thereupon a second catch blocks the release when the second catch strikes the blocking flank of the tooth of the ratchet wheel in the release direction.

Abstract: A stand for holding a rod-shaped unit, particularly a Christmas tree, comprises a foot part, a seating region for the tree trunk, said seating region being located on the foot part, several holding elements, which are supported around an axis of symmetry of the stand and which are pivotable against spring force out of an open position into a holding position, their pivoting planes intersecting approximately in the axis of symmetry, and at least one flexible force transfer element, particularly a steel cable, which can be actuated by means of a tensioning device and which can be loaded in tension and which engages around the holding elements and which, when tightened, causes the holding elements to pivot towards the axis of symmetry into the holding position.