Steering column assembly, and motor vehicle with a steering column assembly

Patent metadata

Field	Value
Publication number	US-12043303-B2
Application number	US-202218074858-A
Country	US
Kind code	B2
Filing date	Dec 5, 2022
Priority date	Dec 7, 2021
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

A steering column assembly for a motor vehicle has a bearing housing and a steering shaft which is mounted in the bearing housing, and an adjusting apparatus, by which the steering shaft can be adjusted. The adjusting apparatus has a drive with a drive element, a motor with a drive shaft, and a first flexible guide element which runs in a tensioned manner in a first tensioning direction between two first tensioning points. Here, furthermore, the drive element is wrapped around at least once without play by the first guide element and is coupled to it in a torque-transmitting manner such that the drive moves along the first guide element in or counter to the first tensioning direction when the drive shaft rotates in or counter to a rotational direction. Furthermore, a motor vehicle with a steering column assembly of this type is provided.

First claim

The invention claimed is:

1. A motor vehicle with a body and a steering column assembly, the steering column assembly including:
a bearing housing and a steering shaft mounted rotatably in the bearing housing, and including an adjusting apparatus, by which the steering shaft is adjustable relative to the body of the motor vehicle,
the adjusting apparatus having a drive with a drive element and a motor with a drive shaft that at least one of forms the drive element or is coupled to the drive element in a torque-transmitting manner,
wherein the adjusting apparatus has a first flexible guide element,
the first flexible guide element running in a tensioned manner between two first tensioning points, wherein the two first tensioning points of the first flexible guide element are attached to the body and wherein the first flexible guide element extends in a first tensioning direction from one of the first tensioning points to the other first tensioning point,
the drive element wrapped around at least once without play by the first flexible guide element and being coupled to it in a torque-transmitting manner such that the drive moves along the first flexible guide element at least one of in or counter to the first tensioning direction when the drive shaft rotates,
the adjusting apparatus coupled to the bearing housing in such a way that, when driven by the rotating drive shaft, the steering shaft is pivoted about a pivot axis with respect to the body or is adjusted in the axial direction of the steering shaft with respect to the body.

2. The steering column assembly according to claim 1 , wherein the adjusting apparatus has a second flexible guide element, the second flexible guide element running in a tensioned manner between two second tensioning points and extending in a second tensioning direction from one of the second tensioning points to the other second tensioning point.

3. The steering column assembly according to claim 2 , wherein the drive element is wrapped around at least once without play by the second flexible guide element and is coupled to it in a torque-transmitting manner such that the drive moves along the second flexible guide element in or counter to the second tensioning direction when the drive shaft rotates in or counter to a rotational direction.

4. The steering column assembly according to claim 2 , wherein the adjusting apparatus has a second drive with a second drive element, the second drive having a second motor with a second drive shaft which forms the second drive element or is coupled to the second drive element in a torque-transmitting manner, the second drive element being wrapped around at least once without play by the second flexible guide element and being coupled to it in a torque-transmitting manner such that the second drive moves along the second flexible guide element in or counter to the second tensioning direction when the second drive shaft rotates in or counter to a second rotational direction.

5. The steering column assembly according to claim 1 , wherein the first flexible guide element a cord, a wire, a cable, a strap, a belt or a ball chain.

6. The motor vehicle according to claim 1 , wherein the steering column assembly has a steering column joint, by which the bearing housing is attached to the body such that it can be pivoted about a pivot axis.

7. The motor vehicle according to claim 1 , wherein the first motor and/or the second motor are/is attached to the bearing housing.

8. The motor vehicle according to claim 1 , wherein the first motor and/or the second motor are/is attached to the body.

9. The motor vehicle according to claim 1 , wherein the motor is mounted such that the motor can be adjusted in the vertical direction with respect to the body, the steering column assembly having at least one supporting element which supports the motor in the vertical direction.

10. The motor vehicle according to claim 1 , wherein two second tensioning points of a second flexible guide element are attached to the bearing housing, the bearing housing having a first bearing portion and a second bearing portion which can be adjusted telescopically with respect to one another in the axial direction of the steering shaft, the second tensioning points being attached to the first bearing portion or to the second bearing portion.

11. The motor vehicle according to claim 10 , wherein the steering column assembly has a first carrier, which has the first tensioning points of the first flexible guide element, and/or a second carrier, which has the second tensioning points of the second flexible guide element, the steering column assembly having a first carrier joint, by which the first carrier is attached to the body or the bearing housing such that it can be pivoted about a pivot axis, and/or having a second carrier joint, by which the second carrier is attached to the body or the bearing housing such that it can be pivoted about a pivot axis.

12. The motor vehicle according to claim 10 , wherein one of the second tensioning points of the second flexible guide element is attached to the bearing housing, and the other second tensioning point is attached to the body.

13. A steering column assembly for a motor vehicle, the steering column assembly comprising:
a bearing housing and a steering shaft mounted rotatably in the bearing housing, and including an adjusting apparatus, by which the steering shaft is adjustable relative to the body of the motor vehicle,
the adjusting apparatus having a drive with a drive element and a motor with a drive shaft that at least one of forms the drive element or is coupled to the drive element in a torque-transmitting manner,
wherein the adjusting apparatus includes a first flexible guide element and a separate second flexible guide member,
the first flexible guide element disposed in a tensioned manner between two first tensioning points and extending in a first tensioning direction from one of the first tensioning points to the other first tensioning point,
the second flexible guide element running in a tensioned manner between two second tensioning points that are separate from the first tensioning points such that the second flexible guide element extends in a second tensioning direction from one of the second tensioning points to the other second tensioning point,
the drive element wrapped around at least once by the first flexible guide element and being coupled to it in a torque-transmitting manner such that the drive moves along the first flexible guide element at least one of in or counter to the first tensioning direction when the drive shaft rotates,
the adjusting apparatus coupled to the bearing housing in such a way that, when driven by the rotating drive shaft, the steering shaft is at least one of pivoted about a pivot axis with respect to the body or is adjusted in the axial direction of the steering shaft with respect to the body.

14. The steering column assembly according to claim 13 , wherein the drive element is wrapped around at least once without play by the second flexible guide element and is coupled to it in a torque-transmitting manner such that the drive moves along the second guide element in or counter to the second tensioning direction when the drive shaft rotates in or counter to a rotational direction.

15. The steering column assembly according to claim 13 , wherein the adjusting apparatus includes a second drive with a second drive element, the second drive having a second motor with a second drive shaft which forms the second drive element or is coupled to the second drive element in a torque-transmitting manner, the second dri

Assignees

• Zf Automotive Germany Gmbh

Inventors

• Hambloch Peter

Classifications

• B62D1/189

  the entire column being tiltable as a unit · CPC title

• B62D1/187

  with tilt adjustment; with tilt and axial adjustment (B62D1/183, B62D1/19 takes precedence) · CPC title

• B62D1/181 Primary

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