RETRACTABLE STEERING COLUMN WITH RAKE LIMITER

• US 20160375929A1
• Filed: 06/27/2016
• Published: 12/29/2016
• Est. Priority Date: 06/29/2015
• Status: Active Grant

• Current Assignee: Steering Solutions IP Holding Corporation (Nexteer Automotive Group Ltd.)
• Original Assignee: Steering Solutions IP Holding Corporation (Nexteer Automotive Group Ltd.)
• Inventors: Srda, Michael, Rouleau, James E., Haring, Shawn A., King, Todd M.
• Granted Patent: US 9,840,271 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B62D 1/181 with power actuated adjustment, e.g. with position memory
• CPC Class Codes: B62D 1/187 with tilt adjustment; with tilt and axial adjustment B62D1/183, B62D1/19 takes precedence

Abstract

A steering column assembly includes an outer jacket, an inner jacket, a pin, and a bracket. The inner jacket is configured to telescopically slide with respect to the outer jacket along a telescopic axis. The pin is engaged to and projects radially outward from one of the inner and outer jackets. The bracket is pivotally engaged to the other of the inner and outer jackets, and includes first and second surfaces that extend substantially axially and are generally opposed to one-another for selective contact with the pin to limit a pivoting range as a function of telescopic position.

Claims

1. A steering column assembly comprising:

a support structure including first and second surfaces that are substantially opposed to one-another;

a first jacket pivotally engaged to the support structure about a pivot axis;

a second jacket configured to telescopically slide with respect to the first jacket along a telescopic axis; and

a member engaged to and projecting radially outward from the second jacket with respect to the telescopic axis, and wherein the first and second surfaces extend substantially axially with respect to the telescopic axis and are configured for selective contact with the member to limit a pivoting range of the first jacket as a function of telescopic position of the second jacket.

2. The steering column assembly set forth in claim 1, wherein the second jacket is disposed at least in-part radially inward of the first jacket.

3. The steering column assembly set forth in claim 1, wherein the support structure is stationary.

4. The steering column assembly set forth in claim 3, wherein the support structure is a rake bracket.

5. The steering column assembly set forth in claim 1, wherein the member is a pin extending along a centerline that is substantially normal to the telescopic axis.

6. The steering column assembly set forth in claim 5, wherein the pivot axis is substantially normal to the telescopic axis.

7. The steering column assembly set forth in claim 6, wherein the centerline is substantially parallel to the pivot axis.

8. The steering column assembly set forth in claim 1, wherein the member is engaged to the second jacket and extends through an opening in the first jacket.

9. The steering column assembly set forth in claim 8, wherein the opening is axially elongated with respect to the telescopic axis and is defined in-part by forward and rearward stops of the first jacket for contact with the member thereby limiting a telescoping range.

10. The steering column assembly set forth in claim 1, wherein the first and second surfaces converge toward one-another in a telescoping direction along the telescopic axis.

11. The steering column assembly set forth in claim 9, wherein the first and second surfaces converge toward one-another in a telescoping direction along the telescopic axis.

12. The steering column assembly set forth in claim 11, wherein the member extends along a centerline that is substantially parallel to the pivot axis and normal to the telescopic axis.

13. The steering column assembly set forth in claim 12, wherein the first and second surfaces define at least in-part a cavity in the structure for receipt of the member.

14. The steering column assembly set forth in claim 13, wherein the cavity has a forward portion defined by opposing first segments of the respective first and second surface that extend substantially parallel to the telescopic axis.

15. The steering column assembly set forth in claim 14, wherein the cavity has a second portion disposed rearward of the forward portion and defined by opposing second segments of the respective first and second surfaces that converge toward one another as the second segments extend toward the respective first segments.

16. The steering column assembly set forth in claim 15, wherein the forward portion is defined in part by a forward stop carried by the support structure and spanning between the opposing first segments.

17. A steering column assembly comprising:

an outer column jacket;

an inner column jacket configured to telescopically slide with respect to the outer column jacket along a telescopic axis;

a pin engaged to and projecting radially outward from one of the inner and outer jackets; and

a bracket pivotally engaged to the other of the inner and outer jackets, the bracket including first and second surfaces that extend substantially axially and are generally opposed to one-another for selective contact with the pin to limit a rake tilting range of the outer jacket as a function of telescopic position.

18. The steering column assembly set forth in claim 17, wherein the pin is engaged to the inner jacket and extends through an axially extending slot in the outer jacket and the outer jacket is pivotally engaged to the bracket.

19. The steering column assembly set forth in claim 18, wherein the slot is defined in part by forward and rearward stops for contact with the pin and configured to limit a telescoping range.

20. A rake limiter for an extendable steering column assembly having a first jacket pivotally engaged to a support structure about a pivot axis and a second jacket configured to telescopically slide with respect to the first jacket along a telescopic axis disposed normal to the pivot axis, the rake limiter comprising:

a member engaged to and projecting radially outward from the second jacket with respect to the telescopic axis; and

first and second surfaces carried by the support structure and disposed substantially in opposition to one-another, and defining at least in-part a contoured cavity for receipt of the member, and wherein the first and second surfaces are constructed and arranged to contact the member to limit a rake tilting range of the first jacket as a function of telescopic position of the second jacket.