Arrangement for introducing a force from a fastening element into a plastic component and method for producing the arrangement

Patent metadata

Field	Value
Publication number	US-11319983-B2
Application number	US-201916714720-A
Country	US
Kind code	B2
Filing date	Dec 14, 2019
Priority date	Dec 14, 2019
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

An arrangement configured to introduce a force from a fastening element into a plastic component, the arrangement including a force-limiting element that is embedded in the plastic component; wherein the fastening element is configured to fasten the plastic component at a body; wherein the fastening element is insertable through the force-limiting element, and wherein the plastic component includes a retention device which protrudes at least partially into an interior of the force-limiting element so that the fastening element that is inserted into the force-limiting element is retained in the force limiting element.

First claim

What is claimed is:

1. An arrangement configured to introduce a force from a fastening element into a plastic component, the arrangement comprising:
the fastening element including a shank;
a force-limiting element that is embedded in the plastic component;
wherein the fastening element is configured to fasten the plastic component at a body;
wherein the fastening element is inserted through the force-limiting element, and
wherein the plastic component includes retention devices which protrude at least partially into an interior of the force-limiting element so that the fastening element is retained in the force limiting element,
wherein the force-limiting element includes first recesses,
wherein the first recesses are arranged at a first opening of the force-limiting element and open towards a first axial face of the force limiting element,
wherein the force-limiting element includes second recesses,
wherein the second recesses are arranged at a second opening of the force-limiting element and open towards a second axial face of the force limiting element,
wherein the retention devices extend through the first recesses and are connected by connecting portions in the interior of the force limiting element,
wherein the retention devices, the connecting portions and the plastic component are integrally provided in one piece,
wherein the retention devices extend over less than an entire axial length of the force limiting element and retain the shank of the fastening element with a radial clearance,
wherein the fastening element is formed as a threaded fastener,
wherein the fastening element includes a head and the shank,
wherein an outer thread that projects from the shank is formed in a portion of the shank that is offset from the head, and
wherein the retention device in the force-limiting element includes an inner diameter which is smaller than an outer diameter of the outer thread.

2. The arrangement according to claim 1 , wherein the force-limiting element is embedded in the plastic component by injection molding.

3. The arrangement according to claim 1 , wherein the force-limiting element is formed as a sleeve.

4. The arrangement according to claim 1 , wherein the retention devices include retention elements which are configured to be placed on the shank.

5. The arrangement according to claim 1 , wherein the retention device is applicable to the fastening element in a sealing manner.

6. A method for producing the arrangement according to claim 1 , the method comprising the steps:
providing the force-limiting element;
embedding the force-limiting element in the plastic component; and
inserting the fastening element through the force-limiting element.

7. The method according to claim 6 , wherein the embedding is performed by injection molding with a liquefied plastic material.

8. The method as claimed in claim 6 , wherein the embedding of the force-limiting element in the plastic component is performed by the retention device flowing into the interior of the force-limiting element.

9. The method according to claim 6 , further comprising the step:
inserting a spacer into the force-limiting element,
wherein the spacer limits an inflow of the retention device during embedding of the retention device in the plastic component.

10. An arrangement configured to introduce a force from a fastening element into a plastic component, the arrangement comprising:
the fastening element including a shank;
a force-limiting element that is embedded in the plastic component;
wherein the fastening element is configured to fasten the plastic component at a body;
wherein the fastening element is inserted through the force-limiting element, and
wherein the plastic component includes retention devices which protrude at least partially into an interior of the force-limiting element so that the fastening element is retained in the force limiting element,
wherein the force-limiting element includes first recesses,
wherein the first recesses are arranged at a first opening of the force-limiting element and open towards a first axial face of the force limiting element,
wherein the force-limiting element includes second recesses,
wherein the second recesses are arranged at a second opening of the force-limiting element and open towards a second axial face of the force limiting element,
wherein the retention devices extend through the first recesses and are connected by connecting portions in the interior of the force limiting element,
wherein the retention devices, the connecting portions and the plastic component are integrally provided in one piece,
wherein the retention devices extend over less than an entire axial length of the force limiting element and retain the shank of the fastening element with a radial clearance,
wherein the connecting portions form a closed profile with eight corners and four concave surfaces and four convex surfaces that envelop the fastening element, and
wherein the four convex surfaces limit a radial movement of the shaft of the fastening element.

11. The arrangement according to claim 1 , wherein first recesses include three first recesses and the second recesses include three second recesses.

Assignees

• ECO Holding 1 GmbH

Inventors

• Stanhope Daniel
• Brower Brent
• Carlson Matt
• Stolzman Matt

Classifications

• B29L2001/00

  Articles provided with screw threads · CPC title

• F16B19/02

  Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings · CPC title

• F16B43/001 Primary

  for sealing or insulation · CPC title

• B29C45/1459 Primary

  Coating annular articles · CPC title

• F16B41/002

  Measures against loss of bolts, nuts or pins (devices for fastening nuts to surfaces F16B37/04) · CPC title