Safety Steering Column for a Motor Vehicle

• US 20080191455A1
• Filed: 04/22/2005
• Published: 08/14/2008
• Est. Priority Date: 04/23/2004
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler AG (Mercedes-Benz Group AG)
• Inventors: Von Ey, Peter, Bohlen, Jens, Knoll, Karl-Heinz, Hebenstreit, Axel, Born, Christian, Eggers, Fred, Duncan, Scott D., Bechtel, Travis, Brown, Markus
• Application Number:
  US11/587,181
• Publication Number:
  US 20080191455A1
• Time in Patent Office: Days
• US Class Current: 280/775
• CPC Class Codes: B62D 1/181 with power actuated adjustment, e.g. with position memory

Abstract

A safety steering column (1) is provided for a motor vehicle, which has a telescopic steering spindle (2) with an upper spindle part (3) which is near to the steering wheel and a lower spindle part (4) which is remote from the steering wheel, and is rotatably mounted in a jacket tube (5). The jacket tube (5) is of telescopic design and has an upper tube part (6) which is near to the steering wheel and a lower tube part (7) which is remote from the steering wheel, the lower tube part (7) being mounted so as to be pivotable about a first axis (10) on a bracket (9) which can be arranged fixed to the vehicle. In addition, an adjustment device which serves to vertically adjust the safety steering column (1) and has an actuating element (12) which is mounted so as to be pivotable about a second axis (14) is provided. The safety steering column (1) is distinguished by the fact that the actuating element (12) is coupled to the jacket tube (5) by means of a force transmitting element (33) which can be adjusted in a translatory fashion in the axial direction relative to the jacket tube (5).

Claims

1-16. -16. (canceled)

17. A safety steering column for a motor vehicle, comprising:

a telescoping steering spindle which has an upper spindle part near to the steering wheel and a lower spindle part remote from the steering wheel, and is rotatably mounted in a jacket tube;

a telescoping jacket tube in which the telescoping steering spindle is mounted, said jacket tube having an upper tube part which is near to the steering wheel, and a lower tube part which is remote from the steering wheel and is pivotably mounted about a first axis, on a bracket that is adapted to be fixedly arranged on the vehicle; and

an adjustment device for vertically adjusting the safety steering column, said adjustment device having an actuating element mounted so as to be pivotable about a second axis on the bracket;

wherein, the actuating element is coupled to the jacket tube by a force transmitting element that can be adjusted in a translatory fashion in the axial direction, relative to the jacket tube.

18. The safety steering column as claimed in claim 17, wherein the force transmitting element is guided in a guide provided on the outside of the jacket tube.

19. The safety steering column as claimed in claim 17, wherein the force transmitting element is mounted rotatably about a third axis on the actuating element.

20. The safety steering column as claimed in claim 17, wherein the actuating element is mounted on the bracket by a carriage.

21. The safety steering column as claimed in claim 17, wherein one of the following is true:

a first actuating drive is provided for pivoting the actuating element about the first axis; and

a second actuating drive is provided for longitudinally adjusting the safety steering column.

22. The safety steering column as claimed in claim 17, wherein the force transmitting element is formed by an outer tube part in which the upper tube part is guided in an axially adjustable fashion.

23. The safety steering column as claimed in claim 22, wherein:

the outer tube part is mounted on the bracket by means of a carriage; and

the actuating element is arranged between the outer tube part and the carriage and is mounted on the carriage rotatably about a second axis, and on the outer tube part rotatably about a third axis.

24. The safety steering column as claimed in claim 17, wherein the first axis, the second axis and the third axis are parallel to one another.

25. The safety steering column as claimed in claim 17, wherein:

the actuating element is embodied in a U shape or has a U-shaped region; and

the jacket tube is arranged between sides of the U section.

26. The safety steering column as claimed in claim 25, wherein the two sides of the U-shaped actuating element have an end region which is bent into an L shape;

and

the second axis and the third axis both penetrate the L-shaped end regions.

27. The safety steering column as claimed in claim 22, wherein a first actuating drive is attached to the carriage and adjusts, by means of a spindle, an actuating arm which is arranged rotationally fixed on the actuating element and as a result rotates the safety steering column with respect to the first axis.

28. The safety steering column as claimed in claim 22, wherein a second actuating drive which axially adjusts the upper tube part with respect to the outer tube part is attached to the outer tube part.

29. The safety steering column as claimed in claim 28, wherein the second actuating drive is connected to a lower end of the upper tube part by means of a clip and engages around said upper tube part.

30. The safety steering column as claimed in claim 21, wherein one of actuating drive and the second actuating drive have an electric motor.

31. The safety steering column as claimed in claim 17, wherein the carriage is configured to adjust itself along its carriage guide with respect to the bracket in such a way that the safety steering column is shortened as a result of the telescoping of the tube parts.

32. The safety steering column as claimed in claim 22, further comprising a pressure element on the outer tube wall which presses the lower tube part radially against the upper tube part, and thus presses the lower tube part and upper tube part radially against the outer tube part is provided on the outer tube part.