Steering column engineered tape

Patent metadata

Field	Value
Publication number	US-10458462-B2
Application number	US-201715677392-A
Country	US
Kind code	B2
Filing date	Aug 15, 2017
Priority date	Aug 15, 2017
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A steering column assembly for a motor vehicle constructed in accordance to one example of the present disclosure includes a box rocker, a column jacket and a first section of tape. The box rocker has a rocker body including a box rocker inner surface that defines a box rocker bore. The box rocker is configured to be fixed relative to the motor vehicle in an assembled position. The column jacket is configured to be slidably received into the box rocker bore. The column jacket has a column jacket outer diameter including an outer surface that opposes the box rocker inner surface. The first section of tape is disposed between the box rocker inner surface and the column jacket outer surface.

First claim

What is claimed is:

1. A steering column assembly for a motor vehicle, the steering column assembly comprising:
a box rocker having a rocker body including a box rocker inner surface that defines a box rocker bore, the box rocker configured to be fixed relative to the motor vehicle in an assembled position;
a column jacket configured to be slidably received into the box rocker bore, the column jacket having a column jacket outer diameter including an outer surface that opposes the box rocker inner surface the column jacket being translatable within the box rocker bore between first and second positions; and
a first section of tape disposed between the box rocker inner surface and the column jacket outer surface wherein the first section of tape mitigates wear between the column jacket and the box rocker during translation of the column jacket within the box rocker bore.

2. The steering column assembly of claim 1 wherein the first section of tape is at least partially adhered to the box rocker inner surface.

3. The steering column assembly of claim 2 wherein the first section of tape is further adhered to a face surface of the box rocker body.

4. The steering column assembly of claim 2 wherein the first section of tape is positioned generally around an upper circumference of the box rocker bore.

5. The steering column assembly of claim 4 wherein the first section of tape is configured to compress between 20% and 25%.

6. The steering column assembly of claim 1 wherein the box rocker includes a fluted section provided by a plurality of radially stepped in surfaces and a plurality of radially stepped out surfaces, the plurality of stepped in surfaces collectively providing the box rocker inner surface.

7. The steering column assembly of claim 6 wherein the first section of tape is positioned onto at least two adjacent radially stepped in surfaces of the plurality of radially stepped in surfaces.

8. The steering column assembly of claim 1 wherein the inner surface of the box rocker and the outer surface of the column jacket are substantially concentric.

9. The steering column assembly of claim 1 wherein the column jacket is configured to translate within the box rocker bore, wherein during translation, the outer surface of the column jacket is caused to slidably ride along the first section of tape disposed on the inner surface of the box rocker.

10. The steering column assembly of claim 1 wherein the column jacket is formed of steel and the box rocker is formed of magnesium.

11. The steering column assembly of claim 4 wherein the first section of tape has a thickness of between 0.05 mm and 0.5 mm.

12. The steering column assembly of claim 11 wherein the first section of tape has a thickness of between 0.1 mm and 0.2 mm.

13. The steering column assembly of claim 12 wherein the first section of tape has a thickness of between 0.12 mm and 0.18 mm.

14. The steering column assembly of claim 4 wherein the first section of tape has one of acrylic and silicone pressure sensitive adhesive.

15. The steering column assembly of claim 4 , further comprising a second section of tape, distinct from the first section of tape and disposed between the box rocker inner surface and the column jacket outer surface.

16. The steering column assembly of claim 15 wherein the first and second sections of tape are of different geometries having distinct footprints.

17. The steering column assembly of claim 15 , further comprising a third section of tape, distinct from the first and second sections of tape and disposed between the box rocker inner surface and the column jacket outer surface.

18. A method of assembling a column jacket relative to a box rocker of a steering column assembly for a motor vehicle, the method comprising:
identifying a mating contact surface of the box rocker;
disposing a first section of tape onto an inner surface of the box rocker at the mating contact surface; and
slidably inserting the column jacket into a bore defined by the inner surface of the box rocker wherein an outer surface of the column jacket slidably advances along the first section of tape mitigating surface to surface contact between the column jacket and the box rocker.

19. The method of claim 18 wherein disposing the first section of tape comprises:
cutting the first section of tape from one of a roll and sheet, the first section of tape corresponding to a desired area of the inner surface of the box rocker.

20. The method of claim 19 wherein disposing the first section of tape further comprises:
cutting slots into the tape to create tabs; and
adhering the tabs to a face of the box rocker.

Assignees

• Thyssenkrupp Presta Ag
• Thyssenkrupp Ag

Inventors

• Mcbride Stephen
• Welch Bryce
• Pichonnat Christian

Classifications

• B62D1/189 Primary

  the entire column being tiltable as a unit · CPC title

• B62D1/181

  with power actuated adjustment, e.g. with position memory · CPC title

• F16C3/03 Primary

  telescopic (axially displaceable couplings F16D3/06) · CPC title

• F16C2204/26

  Alloys based on magnesium · CPC title

• F16C2226/40

  with adhesive · CPC title