Steering column of a vehicle

Patent metadata

Field	Value
Publication number	US-9586609-B2
Application number	US-201514615630-A
Country	US
Kind code	B2
Filing date	Feb 6, 2015
Priority date	Aug 8, 2012
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A vehicle steering column includes first and second shaft parts respectively coupled to an intermediate piece via first and second joint disks. The joint disks are configured such that when the steering column is in an uninstalled state, the first and second shafts are substantially coaxial, and when the steering column is in an installed state, the first and second shafts form a non-zero inclination angle via elastic deformation at the joint disks.

First claim

What is claimed is:

1. A vehicle steering column, comprising:
first and second shaft parts;
a joint arrangement comprising first and second rubber-elastic joint disks, the joint arrangement mutually connecting the first and second shaft parts coaxially with respect to one another in succession; and
an intermediate piece arranged between the first and second joint disks and connecting the first and second shaft parts via the first and second joint disks, respectively,
wherein the intermediate piece is independent of the first and second shaft parts with respect to its mobility,
wherein the joint arrangement is configured such that, when the vehicle steering column is in an uninstalled state, the first and second shaft parts are substantially coaxial, and
wherein the joint arrangement is configured such that, when the vehicle steering column is in an installed state, the first and second shaft parts form a non-zero inclination angle via elastic deformation at the first and second joint disks;
wherein each shaft is coupled to one of the joint disks and each joint disk is coupled to the intermediate piece, via connection elements that project into and directly contact the respective joint disks.

2. The vehicle steering column according to claim 1 , wherein the steering column in an uninstalled state without any elastic deformation of the first and second joint disks, the joint arrangement comprises:
first and second connection elements establishing a connection between the first shaft part and the first joint disk, the first and second connection elements being arranged in a first plane containing the axis of rotation of the first shaft part, one connection element being arranged on each side of the axis of rotation of the first shaft part,
third and fourth connection elements establishing a connection between the first joint disk and the intermediate piece, the third and fourth connection elements being arranged in a second plane perpendicular to the first plane and containing the axis of rotation of the first shaft part, one connection element being arranged on each side of the axis of rotation of the first shaft part,
fifth and sixth connection elements establishing a connection between the intermediate piece and the second joint disk, the fifth and sixth connection elements being arranged in a third plane containing the axis of rotation of the second shaft part, one connection element being arranged on each side of the axis of rotation of the second shaft part, and
seventh and eighth connection elements establishing a connection between the second joint disk and the second shaft part, the seventh and eighth connection elements being arranged in a fourth plane perpendicular to the third plane and containing the axis of rotation of the second shaft part, one connection element being arranged on each side of the axis of rotation of the second shaft part.

3. The vehicle steering column according to claim 2 , wherein, in the uninstalled state of the steering column, the first plane and the third plane essentially coincide and the second plane and the fourth plane essentially coincide.

4. The vehicle steering column according to claim 2 , further comprising:
recesses or spacer elements provided in or at the intermediate piece and/or at the first and second joint disks, wherein the recesses or spacer elements are configured to permit the inclination angle of the steering column without any collision between the first and second joint disks and the intermediate piece or between the first and second joint disks and the respectively associated first and second shaft parts.

5. The vehicle steering column according to claim 2 , wherein the first and second joint disks are configured differently from one another to provide different operating ranges.

6. The vehicle steering column according to claim 5 , wherein the different operating ranges are different frequencies with respect to acoustic decoupling.

7. The vehicle steering column according to claim 1 , further comprising:
recesses or spacer elements provided in or at the intermediate piece and/or at the first and second joint disks, wherein the recesses or spacer elements are configured to permit the inclination angle of the steering column without any collision between the first and second joint disks and the intermediate piece or between the first and second joint disks and the respectively associated first and second shaft parts.

8. The vehicle steering column according to claim 1 , wherein the first and second joint disks are configured differently from one another to provide different operating ranges.

9. The vehicle steering column according to claim 8 , wherein the different operating ranges are different frequencies with respect to acoustic decoupling.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Linke Martin
• Schoelzel Matthias

Classifications

• F16D3/78

  shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings · CPC title

• B62D1/16 Primary

  Steering columns · CPC title

• B62D1/163 Primary

  Part of the steering column replaced by flexible means, e.g. cable or belt · CPC title