Bollhoff Verbindungstechnik Gmbh

Marcel Purrio

Alexej Butov

Klaus-Friedrich Grubert

Michael Stumpf

Anna-Katharina Schreiner

Theodor Wenniges

Andreas Marxkors

Holger Thommes

Hermann Zimmermann

Tobias Beyer

Klemens Rucha

Maximilian Leinkenjost

Sascha Zavarol

Franz Lutz

Thorben Schiemann

Wire thread insert consisting of a body with a plurality of helically wound windings, in which the plurality of helically wound windings comprises a first end winding and a second end winding which define the body at opposite axial ends, the first end winding has a first integral form-fitting means in a first end section and the second end winding has a second integral form-fitting means in a second end section, so that in an installed state of the wire thread insert a form-fit rotation-inhibiting connection with an adjacent component structure can be produced via the first and the second integral form-fitting means respectively.

Wire thread insert

A hollow-cylindrical preloading cartridge of an installation tool of a wire thread insert has a mandrel channel extending within the preloading cartridge, in which an assembly mandrel with an installation end and a drive end is guided in an inner mandrel guiding thread. The cartridge has an outer wall which encompasses the mandrel channel at least partly with a radial positioning window adjacent to a first axial end of the preloading cartridge facing away from the drive end of the assembly mandrel, through which a wire thread insert is positionable on the assembly mandrel. At least one first tactile detection unit projects beyond a ring-like front side of the cartridge on the first axial end and is offsetable parallel to a longitudinal axis of the cartridge, wherein an axial offset of the at least one tactile detection unit can be detected with a first detection sensor of the cartridge.

Hollow-cylindrical preloading cartridge for an installation tool of a wire thread insert, the installation tool, a retrofit kit with hollow-cylindrical preloading cartridges for it as well as an installation method for the wire thread insert

The installation tool for a wire thread insert includes: a drive unit which provides a switchable rotation movement between a first and a second direction, a mandrel body with a drive section for rotating the mandrel body and with a drive section for rotating the mandrel body and with a thread section onto which the wire thread insert can be screwed or rotated on, an installation blade as well as a torque clutch consisting of a form-fit and force-fit clutch upper and lower parts engaging each other, of which the upper part is connected with the drive unit in a torque-proof manner and the lower part is connected with the mandrel body in a torque-proof manner. With a decoupled relative rotation between the clutch parts, caused by exceeding a limit torque between the clutch parts, relative movement between the mandrel body and the installation blade can be generated.

Installation tool for a wire thread insert

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Bielefeld, Germany

Marcel Purrio