Abstract

The invention relates to a riveted connection in which the rivet shaft (13) of a rivet element (7) can be driven into at least one first joint partner (1) in a setting direction during a setting process, namely while at least partly expanding the rivet shaft (13), such that the first joint partner (1) is clamped between a rivet head (9) and a rivet foot of the rivet element (7) when viewed in the setting direction (S), wherein a functional section for attaching at least one second joint partner (2) is formed on the upper face of the rivet head (9) of the rivet element (7). According to the invention, the functional section has a blind hole (53) which is coaxial to the rivet element longitudinal axis (L) in particular, said blind hole comprising a closed blind hole base (54) which interacts with an auxiliary joint element (57) in order to attach the second joint partner (2) to the first joint partner (1).

IPC Classes  ?

• F16B 37/06 - Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
• F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
• F16B 19/08 - Hollow rivets; Multi-part rivets
• F16B 2/20 - Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening

Abstract

The invention relates to a riveted connection comprising at least one first joint partner (1) and a second joint partner (2, 3) which can be connected together at least in a setting process in which a rivet shaft (13) of a rivet element (7) is driven into the first joint partner (1) in a setting direction (S) using a setting force (F), thereby expanding the rivet shaft (13), wherein the first joint partner (1) has a blind hole-type pilot hole (5) at the joint position to be produced in the non-deformed state, and a cutting edge (15) of the base-side shaft section (43) of the hollow rivet shaft (13) is driven into the material of the first joint partner (1) on a pilot hole circumferential wall (39) in the expanded state.

IPC Classes  ?

• F16B 19/08 - Hollow rivets; Multi-part rivets

Abstract

The invention relates to a setting system comprising a setting head (5) having a setting ram (7) which has an adjustable stroke and drives a setting element (1) into at least one component (3) in a setting direction (S) and at a setting force (F) during a setting process, said system also comprising a control unit (9) which generates a setting signal (SF) during the setting process on the basis of target setting parameters (FSOLL, sSOLL, vSOLL), which signal can control a pressure generator (11, 13) that drives the setting ram (7) over a setting path (s) and at a setting speed (v). According to the invention, the setting system has a sensor device (21) which detects a deflection of the setting head (5) and/or a deflection of the component (3) during the setting process.

IPC Classes  ?

• B21J 15/02 - Riveting procedures
• B21J 15/28 - Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
• B21J 15/36 - Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets

Abstract

The invention relates to a riveted connection, wherein a hollow rivet shank (11) of a rivet element (1) is driven into a component (3), more particularly exactly one component, in a setting direction (S), such that the rivet shank (11) expands. In the undeformed state, the component (3) has a blind-hole-type pre-hole (5) at the joint to be produced. In the expanded state, a cutting edge (15) of a bottom wall portion (43) of the hollow rivet shank (11) is driven into the component material at a pre-hole peripheral wall (39). According to the invention, an activation contour (31) is formed in the component pre-hole (5); in the setting process, the activation contour controls a transformation of the rivet element (1) from the undeformed state into the expanded state. The activation contour (31) has an expansion cone (33) protruding from the pre-hole bottom.

IPC Classes  ?

• F16B 19/08 - Hollow rivets; Multi-part rivets

Abstract

The invention relates to a riveted connection in which a rivet foot (7) of a rivet element (5) is driven with a setting force (F) into at least one single- or multi-part, in particular pilot hole-free, component (1, 3) of material thickness (s), to be precise with spreading apart of the rivet foot (7) and while maintaining a residual bottom thickness (r) in the component (1, 3), wherein the rivet foot (7) has, in the non-deformed state, a cavity (13) which is open towards the rivet foot end side (11). According to the invention, the component side facing away from the setting side is designed to have a completely planar surface, that is to say without die-induced bowing, such that in the component side facing away from the setting side there occurs no material deformation and/or material change in the region of the residual bottom thickness (r).

IPC Classes  ?

• F16B 19/08 - Hollow rivets; Multi-part rivets
• B21J 15/02 - Riveting procedures
• B21K 1/60 - Making machine elements rivets hollow or semi-hollow rivets