US 11,724,374 B2
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
Marcel Purrio, Bielefeld (DE); Thorben Schiemann, Nienstädt (DE); and Alexej Butov, Gütersloh (DE)
Assigned to Böllhoff Verbindungstechnik GmbH, Bielefeld (DE)
Filed by BÖLLHOFF VERBINDUNGSTECHNIK GmbH, Bielefeld (DE)
Filed on Nov. 2, 2022, as Appl. No. 17/979,368.
Claims priority of application No. 21206551 (EP), filed on Nov. 4, 2021.
Prior Publication US 2023/0139341 A1, May 4, 2023
Int. Cl. B25B 27/14 (2006.01); F16B 37/12 (2006.01)
CPC B25B 27/143 (2013.01) [F16B 37/122 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A hollow-cylindrical preloading cartridge of an installation tool of a wire thread insert comprising the following features:
a. 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,
b. an outer wall of the preloading cartridge 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 in the mandrel channel on the assembly mandrel,
c. at least a first tactile detection unit projecting beyond a preferably ring-like front side of the preloading cartridge on the first axial end and being offsetable parallel to a longitudinal axis of the preloading cartridge, wherein an axial offset of the at least one tactile detection unit is detectable with a first detection sensor of the preloading cartridge.