IP Library Granted Patent US 9,701,049
Granted Patent B2
US 9,701,049 · App. 14/253,400 · Granted Jul 11, 2017

Method for producing a fiber-reinforced plastics part with a connecting region

Inventors: Johann van Niekerk (Munich, DE); Maik Hammer (Eching, DE)
Assignee: Bayerische Motoren Werke Aktiengesellschaft
B29C45/14B29C45/1418B29C45/14336B29C70/48B29C70/545
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Quick Facts
Patent No.
US 9,701,049
App. No.
14/253,400
Granted
Jul 11, 2017
Kind
B2
Abstract

A process for producing a fiber-reinforced plastic part, includes the steps of providing a mat-type reinforcing matrix consisting of a fiber material; inserting the reinforcing matrix into an injection molding tool; closing the injection molding tool; placing a liquid thermosetting plastic material in the injection molding tool, the reinforcing matrix being saturated with plastic material. In a connection area, in which the plastic part to be produced is to be connectable later with a further component, the reinforcing matrix is deformed such that a trough-type bulging-out is formed. A place holder element is inserted into the bulging-out, and the bulging-out is filled up with plastic material around the place holder element.

Claims (21)

1. A process for producing a fiber-reinforced plastic part, the process comprising the acts of:

providing a mat-type reinforcing matrix composed of a fiber material;

inserting the reinforcing matrix into a tool;

closing the tool;

deforming the reinforcing matrix in the tool in a connection area in which the plastic part to be produced is subsequently intended to be connectable to a further component, the deforming creating a trough-type, bulge;

inserting a place holder element with a threaded outer circumference into the bulge, wherein the bulge locally corresponds to an area of the place holder element;

filling up the bulge with plastic material around the threaded outer circumference of the place holder element;

setting of the plastic material around the threaded outer circumference of the place holder element to form a cup-type, indentation with a corresponding mating thread in the cup-type indentation;

unscrewing the place holder element from the cup-type indentation.

2. The process according to claim 1 , further comprising the act of:

placing a connection element into the cup-type indentation, said connection element being configured to connect the plastic part with a further component.

3. The process according to claim 1 , further comprising the act of:

screwing a connection element into the corresponding mating thread of the cup-type indentation.

4. The process according to claim 3 , wherein the connection element comprises a head that projects out of the cup-type indentation, the head having a spherical shape, and

connecting the further component via a snap-on connection with the head.

5. The process according to claim 3 , wherein the connection element is glued into the cup-type indentation.

6. The process according to claim 1 , further comprising the act of:

when the tool is closed, providing a liquid thermosetting plastic material into the tool, wherein the reinforcing matrix is saturated with the liquid thermosetting plastic material.

7. The process according to claim 6 , wherein the tool is an injection molding tool.

8. The process according to claim 1 , wherein the tool is an injection molding tool.

9. The process according to claim 1 , wherein the plastic material bulges beyond a plane defined by a surface of the reinforcing matrix.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2014
From: NIEKERK, JOHANN VAN; HAMMER, MAIK
To: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Reel/Frame 032694/0258 →
Priority Claims (1)
DE 10 2011 085 225 · Oct 26, 2011 · national
Continuity (2)
Continuation PCTEP2012068971 · Sep 26, 2012
Related Publication 20140225307A1 · Aug 14, 2014