Abstract: A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

Abstract: A structurally reinforced hollow element includes a wall which surrounds a cavity at least in part. The wall extends three-dimensionally in such a manner that it comprises (a) a first wall portion with an opening and a second wall portion which is situated diametrically opposite the first wall portion and is spaced apart from the first wall portion, and (b) a bolt. The bolt includes at its first axial bolt end a bolt head that protrudes in the radial direction beyond a head-side bolt extent. The bolt also includes a second axial bolt end, which is remote from the first axial bolt end, is fastened on the second wall portion in a manner that is resistant to axial displacement. An overall clearance remains between an outside surface of the first wall portion and a radial surface of the bolt head which faces the outside surface.

Abstract: A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

Abstract: A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

Abstract: A structurally reinforced hollow element includes a wall which surrounds a cavity at least in part. The wall extends three-dimensionally in such a manner that it comprises (a) a first wall portion with an opening and a second wall portion which is situated diametrically opposite said first wall portion and is spaced apart from said first wall portion, and (b) a bolt. The bolt includes at its first axial bolt end a bolt head that protrudes in the radial direction beyond a head-side bolt extent. The bolt also includes a second axial bolt end, which is remote from the first axial bolt end, is fastened on the second wall portion in a manner that is resistant to axial displacement. An overall clearance remains between an outside surface of the first wall portion and a radial surface of the bolt head which faces the outside surface.

Abstract: A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

Abstract: The invention relates to a longitudinally adjustable connecting rod (1), in which a piston part (2) and a shaft part (9) are telescopically inserted one inside the other. Piston part and shaft part can be locked together at certain lengths by pins (5a, 5a′, 5b, 5b′) supported in the piston part skirt (8), which engage in associated recesses (4a, 4a′, 4b, 4b′) on the shaft part skirt (3). Every two pins (5a, 5a′; 5b, 5b′) are pushed apart by springs (11a, 11b) situated between them. Through corresponding feed ducts (7a) a hydraulic medium can be purposely delivered to the recesses in the piston part skirt (3), in order to push pins situated therein back into the shaft part skirt (8).

Abstract: The invention relates to a longitudinally adjustable connecting rod (1), in which a piston part (2) and a shaft part (9) are telescopically inserted one inside the other. Piston part and shaft part can be locked together at certain lengths by pins (5a, 5a′, 5b, 5b′) supported in the piston part skirt (8), which engage in associated recesses (4a, 4a′, 4b, 4b′) on the shaft part skirt (3). Every two pins (5a, 5a′; 5b, 5b′) are pushed apart by springs (11a, 11b) situated between them. Through corresponding feed ducts (7a) a hydraulic medium can be purposely delivered to the recesses in the piston part skirt (3), in order to push pins situated therein back into the shaft part skirt (8).