Fiber composite component, apparatus and method for producing a fiber composite component

Patent metadata

Field	Value
Publication number	US-12508782-B2
Application number	US-202418773735-A
Country	US
Kind code	B2
Filing date	Jul 16, 2024
Priority date	Mar 3, 2021
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

A fiber composite component has two inner elements arranged at a distance from one another, around which inner elements a fiber-reinforced plastics band is wrapped. In order to simplify the production of the fiber composite component, a first fiber-reinforced plastics band is wrapped around a first inner element, and a second fiber-reinforced plastics band is wrapped around a second inner element. The first and the second fiber-reinforced plastics band are wrapped alternately around the first and the second inner element in such a manner that the distance between the inner elements is bridged by the first and the second fiber-reinforced plastics band.

First claim

What is claimed is:

1 . A method for producing a fiber composite component including (i) two inner elements arranged at a distance from one another, (ii) a first fiber-reinforced plastics band wrapped around a first inner element of said two inner elements, and (iii) a second fiber-reinforced plastics band wrapped around a second inner element of said two inner elements, wherein the inner elements each have a rotationally symmetrical form and an axis of rotation,
said method comprising: (a) rotating the first inner element about its axis of rotation using a first rotary drive coupled to the first inner element in order to wrap the first fiber-reinforced plastics band around the first inner element; (b) rotating the second inner element about its axis of rotation using a second rotary drive coupled to the second inner element in order to wrap the second fiber-reinforced plastics band around the second inner element, wherein the second rotary drive rotates independently of the first rotary drive; (c) arranging an intermediate element between the inner elements; (d) using a tensioning device to move the first and second fiber-reinforced plastics against the intermediate element, wherein the tensioning device comprises two pressing rollers that are positioned on opposing sides of the intermediate element; and (e) jointly rotating the intermediate element and the first and the second inner elements about a third axis of rotation using a third rotary drive in order to wrap the first and the second fiber-reinforced plastics band alternately around the first and the second inner elements and the intermediate element in such a manner that the distance between the inner elements is bridged by the first and the second fiber-reinforced plastics band.

2 . The method as claimed in claim 1 , wherein the fiber-reinforced plastics bands are deposited parallel to one another between the inner elements.

3 . The method as claimed in claim 1 , wherein a fiber composite component in an axial direction is divided, after wrapping, transversely to the axial direction into at least two fiber composite components.

4 . The method as claimed in claim 1 , wherein each fiber-reinforced plastics band is wrapped at least partially around both of the inner elements.

5 . The method as claimed in claim 1 , wherein the intermediate element is a pultruded profile.

6 . The method as claimed in claim 1 , wherein the intermediate element has concave side surfaces each of which faces one of the inner elements.

7 . The method as claimed in claim 1 , further comprising the step of heat treating the fiber composite component.

8 . The method as claimed in claim 1 , wherein the third rotary drive rotates independently of the first and second rotary drives.

9 . The method as claimed in claim 1 , wherein step (e) follows steps (a) through (d).

10 . The method as claimed in claim 1 , wherein rotation in steps (a), (b) and (e) is in the same rotational direction.

11 . The method as claimed in claim 1 , wherein the intermediate element has a waisted shape.

Assignees

• Porsche Ag

Inventors

• Higle Andreas

Classifications

• B60G2206/10

  Constructional features of arms · CPC title

• B29K2307/04

  Carbon · CPC title

• B29K2063/00

  Use of {EP, i.e.} epoxy resins {or derivatives thereof}, as moulding material · CPC title

• B60G2206/7101

  Fiber-reinforced plastics [FRP] · CPC title

• B29L2031/30

  Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)} · CPC title