Steering columns for a motor vehicle and methods for manufacturing same

Patent metadata

Field	Value
Publication number	US-9676149-B2
Application number	US-201414898632-A
Country	US
Kind code	B2
Filing date	Mar 17, 2014
Priority date	Jun 20, 2013
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A steering-column assembly for a motor vehicle may include a steering spindle rotatably mounted in a steering-column tube, which steering-column tube is mounted in a console that connects the steering-column directly or indirectly to a body of the motor vehicle. At least one of the components of the steering-column, such as the console, for example, may include a fiber composite component that can be formed by winding fibers along tracks of a winding spool of a winding core, introducing a curable resin into the fibers or a mold to be used with the wound fibers, curing the wound fibers, and removing the winding spool and the winding core so as to release the fiber composite component. The fiber composite component may then be fitted into the steering column assembly.

First claim

What is claimed is:

1. A method of manufacturing a steering-column assembly having a steering spindle rotatably mounted in a steering-column tube, wherein the steering-column tube is mounted in a console that connects the steering-column tube directly or indirectly to a body of a motor vehicle, wherein at least one component of the steering-column assembly is a fiber composite component, the method comprising:
winding fibers along predetermined tracks about at least one winding spool of a winding core;
introducing a curable resin into the fibers or a mold;
curing the curable resin to form the fiber composite component of the steering-column assembly;
removing the at least one winding spool;
removing the winding core and releasing the fiber composite component; and
installing the steering-column assembly with the fiber composite component being fitted into the steering-column assembly.

2. The steering-column assembly according to the method of claim 1 .

3. A method of manufacturing a steering-column assembly having a steering spindle rotatably mounted in a steering-column tube, wherein the steering-column tube is mounted in a console that connects the steering-column tube directly or indirectly to a body of a motor vehicle, wherein at least one component of the steering-column assembly is a fiber composite component, the method comprising:
winding fibers along predetermined tracks about at least one winding spool of a winding core, wherein the fibers are soaked with a curable resin;
curing the curable resin to form the fiber composite component of the steering-column assembly;
removing the at least one winding spool;
removing the winding core and releasing the fiber composite component; and
installing the steering-column assembly with the fiber composite component being fitted into the steering-column assembly.

4. The method of claim 3 further comprising:
positioning one or more operative elements at predetermined points on the winding core prior to winding the fibers along the predetermined tracks; and
connecting the one or more operative elements to the fibers such that the one or more operative elements and the fiber composite component form an integral component.

5. The method of claim 3 further comprising applying an auxiliary material onto the winding core prior to winding the fibers along the predetermined tracks, wherein the auxiliary material is configured to maintain a shape and a position of the fibers until the fibers are fixed by curing the curable resin.

6. The method of claim 3 further comprising removing the at least one winding spool towards an inside of the winding core.

7. The steering-column assembly according to the method of claim 3 .

8. The steering-column assembly of claim 7 wherein the fiber composite component is positioned in a force flux of the steering-column assembly between the steering spindle and the body of the motor vehicle, wherein the fiber composite component is formed along the force flux from fiber-reinforced plastic in which the fibers are wound.

9. The steering-column assembly of claim 8 wherein the fiber-reinforced plastic is comprised of a plurality of types of fiber structures having identically oriented fibers.

10. The steering-column assembly of claim 9 wherein the fiber composite component is made using the winding core, wherein the winding core is separated from the fiber composite component prior to fitting the fiber composite component in the steering-column assembly, wherein the winding core is not included in the steering-column assembly.

11. The steering-column assembly of claim 10 wherein the fiber composite component comprises a plurality of operative elements that are fixedly connected to the fiber-reinforced plastic by way of the winding of the fiber and the curing of the curable resin.

12. The steering-column assembly of claim 11 wherein the operative elements are selected from a group including fastening elements, guides, motion limiters, bearings, and consoles for wiring looms.

Assignees

• Thyssenkrupp Presta Ag

Inventors

• Heitz Thomas
• Regner Sebastian
• Schacht Arne

Classifications

• B29C70/32

  on a rotating mould, former or core · CPC title

• B29C70/86

  Incorporated in coherent impregnated reinforcing layers, {e.g. by winding} · CPC title

• B29C53/56

  Winding and joining, e.g. winding spirally {(winding in general B65H)} · CPC title

• B29C53/564

  for making non-tubular articles (for winding of reinforced articles having a non-circular cross-section followed by compression B29C70/347) · CPC title

• B29C70/68

  by incorporating or moulding on preformed parts, e.g. inserts or layers {, e.g. foam blocks (mould constructions therefor B29C33/12; joining preformed parts by moulding B29C65/70)} · CPC title