Bollhoff Verbindungstechnik Gmbh

Andreas Marxkors

Holger Thommes

Dennis Henke

Mathias Heger

Franz Ferdinand Menne

Daniel Junklewitz

Hermann Zimmermann

Klaus-Friedrich Grubert

Marcel Purrio

Alexej Butov

Francisco Tovar

Uwe Kirchhecker

Tobias Beyer

Sascha Zavarol

Franz Lutz

Ralf Dörr

Klemens Rucha

Maximilian Leinkenjost

Franz-Ferdinand Menne

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

A tool for installing or removing a wire thread insert. This tool includes a spindle body having an actuator which can be moved axially therein. The actuator interacts with an entraining blade. By the axial movement of the actuator, the entraining blade can be extended out of the axial recess and retracted back into it.

The disclosure relates to a tool for inserting or removing a wire thread insert. The spindle body inserted in the tool has a radial recess, through which an engaging end of the installation blade engages a wire thread insert. The radial recess has a curvilinear circumferential contour or at least one relief notch, which serve for mechanical tension relief in the spindle body.

Tool for inserting and/or removing a wire thread insert

A wire thread insert comprises besides a cylindrical helix consisting of a plurality of coils a moving tang projecting into the interior of the helix for installing the wire thread insert into a receiving thread. The wire thread insert is connected to the cylindrical helix via a bending portion such that the moving tang can be redressed into the receiving thread after installation of the wire thread insert. The wire thread insert is installed by means of an installation tool with a mounting spindle, which installs the wire thread insert in the receiving thread via a moving shoulder and the moving tang. A compression blade provided at the mounting spindle bends the moving tang back into the receiving thread while the mounting spindle is removed from the installed wire thread insert.

Wire thread insert with redressable mounting tang as well as its manufacturing and installation

The inventive installation tools are adapted to a wire thread insert comprising a cylindrical coil with a plurality of helically wound windings of a wire and a driving tang with a moving notch protruding into an interior of the coil via a bending portion. The installation tool has the following features: a rotatable mounting spindle with a driving end for rotating the installation spindle and a functional end for installing the wire thread insert, wherein the functional end comprises at least one turn that is length-reduced in the circumferential direction and that has, at a first end, a driving edge for engagement into a moving notch of the wire thread insert and, at a second end, a bend-up-shoulder for bending the driving tang of the wire thread insert radially outwardly.

Installation tool for a wire thread insert having an installation pin that can be bent back, and installation method

Wire thread insert with redress mounting tang as well as its manufacturing and installation

A semi-tubular self-piercing rivet having a rivet head and a rivet shaft, the shaft bore of which satisfies the following relationship in relation to the length of the semi-tubular self-piercing rivet: the total length of the self-piercing rivet Lbeing &#x2264;4 mm. The disclosure further relates to a corresponding self-piercing rivet joint, to a method for producing the self-piercing rivet, and to a method for producing the self-piercing rivet joint.

Semi-tubular self-piercing rivet for thin sheet metal joints, method for producing said semi-tubular self-piercing rivet, and method for producing a joint

A self-piercing riveting die for a setting device, by which a self-piercing riveting connection in a plurality of components is establishable by forming a closing head. This self-piercing riveting die may include a main body with an upper side and a recess arranged rotationally symmetrically to the central axis of the self-piercing riveting die formed therein. In the cross-section of the self-piercing riveting die, the recess has a demolding inclination of the demolding section, which radially transitions via a step into a circular arc-shaped lowering of the annular channel section, wherein the circular arc-shaped lowering radially inwardly rises straight-lined or circular arc-shaped or curvilinearally to the die bottom.

Self-piercing rivet die

A tool for inserting or removing a tang-free wire thread insert is described, the entraining blade of which is manually fastenable and replaceable within the axial recess of the spindle body by means of a latching connection. In addition to the secure removal of wire thread inserts, this tool construction also ensures a quick replacement of worn entraining blades of the tool. Furthermore, a production method for such a tool is described.

Tool for inserting or removing a tang-free wire thread insert, production method therefor and method for manually replacing an entraining blade of this tool

The present invention discloses a self-piercing rivet (), particularly a semi-hollow self-piercing rivet, with a head () and a shank () as well as a pre-perforated flat element () that is arranged on the shank () and at least part of which extends radially relative to the head () beyond a head radius. A production method and a joining method for said self-piercing rivet with pre-perforated flat element are also described.

Self-piercing rivet with a pre-perforated flat element, production method and joining method therefor

A threaded element in the shape of a wire thread insert with a specific geometric design is disclosed. This threaded element contains, in particular, a narrowed helical winding of at least two helical winding sections that enclose one or a plurality of sequential secants. Based on this geometric design of the threaded element, a matched installation process is described.

Growing community of inventors

Hövelhof, Germany

Andreas Marxkors