Deformable insertion fastening arrangement for fastening onto a metal sheet/plastic composite ply structure

Patent metadata

Field	Value
Publication number	US-11053969-B2
Application number	US-201916297083-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Mar 29, 2018
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A deformable insertion fastening arrangement for insertion into a planar ply structure and for retention thereon by subsequent deformation, including a retention component having a passthrough opening passing through it along a passthrough axis and having a fastening configuration for fastening a further component thereonto; the retention component having at least two portions that are radially displaceable relative to the notional passthrough axis that passes centrally through the passthrough opening, the retention component, when considered in its undeformed initial state, is embodied segmentedly in a circumferential direction around the passthrough axis; at least two segments, constituting the radially displaceable portions, being connected to one another by at least one connecting configuration deformable in a circumferential direction; at least one segment being displaceable in a radial direction away from the passthrough axis against a shape inertia force of the at least one connecting configuration, accompanied by enlargement of the passthrough opening.

First claim

The invention claimed is:

1. A deformable insertion fastening arrangement embodied for insertion into and anchored to a planar metal sheet/plastic composite ply structure and for retention thereon by subsequent deformation; the planar metal sheet/plastic composite ply structure having a sandwich structure wherein a plastic ply is arranged between two metal sheets and the two metal sheets are spaced apart by a ply spacing, the planar metal sheet/plastic composite ply structure having an opening extending therethrough such that the two metal sheets have an inner metal circumferential edge and the plastic ply has an inner plastic ply circumferential edge forming the opening; the insertion fastening arrangement comprising a retention component having at least two portions that are radially displaceable relative to one another and that together form a passthrough opening passing through it along a passthrough axis and having a fastening configuration for fastening a further component thereonto; the passthrough axis defining an axial direction, radial directions orthogonal thereto, and a circumferential direction proceeding around the passthrough axis;
wherein at least one of:
the retention component, when considered in its undeformed initial state, is embodied segmentedly in a circumferential direction around the passthrough axis; at least two segments, constituting the radially displaceable portions, being connected to one another by at least one connecting configuration deformable in a circumferential direction; at least one of the at least two segments being displaceable in a radial direction away from the passthrough axis against an elastic force of the at least one connecting configuration, accompanied by enlargement of the passthrough opening, the at least one of the at least two segments having a radially extending segment portion having an axial segment portion length that is adapted to be equal to or less than the ply spacing wherein the displacement in the radial direction forces the radial extending segment portion into the inner plastic ply circumferential edge and into the plastic ply and the radially extending segment portion extending radially past the inner metal circumferential edges wherein the radially extending segment portion extends between the two metal sheets; and,
the retention component, when considered in its undeformed initial state, comprises, in at least one anchoring portion delimited with reference to the overall dimension of the retention component in an axial direction and in a circumferential direction, an anchoring configuration that projects radially into the passthrough opening and is displaceable in the radial direction to form a radial protrusion on the radially outer side of the retention component that engages only one of the two metal sheets, wherein the at least one anchoring portion comprises a deformation portion embodied on the retention component in one-piece and materially continuous fashion.

2. The insertion fastening arrangement according to claim 1 , wherein the at least one connecting configuration is integrally molded as one piece with the at least two segments connected by the at least one connecting configuration.

3. The insertion fastening arrangement according to claim 1 , wherein the at least one connecting configuration is arranged in a circumferential direction between two circumferential bounding walls of two of the at least two segments that are directly adjacent in a circumferential direction.

4. The insertion fastening arrangement according to claim 1 , wherein the at least one connecting configuration radially externally surrounds the retention component at least in portions.

5. The insertion fastening arrangement according to claim 1 , wherein the at least one connecting configuration completely radially externally surrounds the retention component.

6. The insertion fastening arrangement according to claim 1 , wherein the retention component comprises, on its external region that faces toward an associated composite ply structure in an inserted position, a positive engagement configuration for positive engagement with the associated composite ply structure.

7. The insertion fastening arrangement according to claim 1 , wherein the retention component comprises, on its external region that faces toward an associated composite ply structure in an inserted position, on at least one of longitudinal ends of the retention component, a positive engagement configuration for positive engagement with an associated metal sheet of the associated composite ply structure.

8. The insertion fastening arrangement according to claim 1 , wherein the retention component, when considered in its undeformed initial state, comprises, in at least one anchoring portion delimited with reference to the overall dimension of the retention component in an axial direction and in a circumferential direction, an anchoring configuration that projects radially into the passthrough opening and is displaceable in a radial direction, accompanied by formation of a radial protrusion on the radially outer side of the retention component, wherein the at least one anchoring portion comprises a deformation portion embodied on the retention component in one-piece and materially continuous fashion, and wherein the at least one anchoring portion comprises an anchoring component that is embodied separately from the retention component and is mounted radially displaceably therein.

9. The insertion fastening arrangement according to claim 1 , wherein the at least one connecting configuration is a plurality of connecting configuration integrally molded as one piece with the at least two segments connected by the plurality of connecting configurations.

10. The insertion fastening arrangement according to claim 1 , wherein the retention component, when considered in its undeformed initial state, comprises, in at least one anchoring portion delimited with reference to the overall dimension of the retention component in an axial direction and in a circumferential direction, an anchoring configuration that projects radially into the passthrough opening and is displaceable in a radial direction, accompanied by formation of a radial protrusion on the radially outer side of the retention component, wherein the at least one anchoring portion comprises a deformation portion embodied on the retention component in one-piece and materially continuous fashion, wherein the at least one anchoring portion comprises an actuation bevel which projects radially into the passthrough opening, wherein the anchoring portion is radially outward displaceable by the further component when introduced into the passthrough opening and wherein a displacement of the anchoring portion by the further component introduced into the passthrough opening is accompanied by formation of the radial protrusion.

11. The insertion fastening arrangement according to claim 8 , wherein the at least one anchoring portion comprises an actuation bevel which projects radially into the passthrough opening and by which the further component introduced into the passthrough opening is displaceable radially outward accompanied by formation of the radial protrusion.

12. The insertion fastening arrangement according to claim 1 , wherein the fastening configuration includes a thread; and the further component comprises a threaded-rod portion.

13. The insertion fastening arrangement according to claim 12 , wherein the passthrough opening is embodied conically at least over an axial portion.

14. The insertion fastening arrangement according to claim 1 , wherein the passthrough opening is embodied conically at lea

Assignees

• Roechling Automotive Se & Co Kg

Inventors

• Fischer Jochem

Classifications

• F16B21/186

  external, i.e. with contracting action · CPC title

• F16B37/062

  by means of riveting · CPC title

• F16B29/00

  Screwed connection with deformation of nut or auxiliary member while fastening ({Nuts fastened to surfaces by riveting F16B37/065}; members deformed for locking screws, bolts or nuts F16B39/22) · CPC title

• F16B37/122

  Threaded inserts, e.g. "rampa bolts" · CPC title

• F16B13/063 Primary

  by the use of an expander · CPC title