# US 2021/0197883 A1 · Steering column for a motor vehicle

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- Number: US 2021/0197883 A1
- Document ID: US20210197883A1
- Status: Published application
- Kind: A1
- Application number: 16/071,702
- Filed: 2017-01-19
- Published: 2021-07-01
- Earliest claimed: 2016-01-26
- Assignees: Thyssenkrupp Presta AG; thyssenkrupp AG
- Applicants: Thyssenkrupp Presta AG; thyssenkrupp AG
- Inventors: Thomas AGBOR; Thomas GEISELBERGER
- Web page: https://patentgrep.com/patent/US20210197883A1

## CPC

- B62D 1/184: Mechanisms for locking columns at selected positions
- B62D 1/185: adjustable by axial displacement, e.g. telescopically (B62D1/183, B62D1/187, B62D1/19 take precedence)
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

A steering column includes an adjustment unit having a steering spindle rotatably supported in a casing pipe about a longitudinal axis. A carrier unit configured to receive the casing pipe includes at least one clamping face facing the casing pipe. A clamping device clamps the clamping face against the casing pipe to longitudinally fix the adjustment unit relative to the carrier unit, releases the clamping face from the casing pipe and releases an adjustment of the adjustment unit relative to the carrier unit at least in the longitudinal direction. The carrier unit includes at least one sliding face facing the casing pipe along which the casing pipe can be moved longitudinally in the release position. The sliding face may be arranged on a support device which presses the sliding face against the casing pipe with a support force which can be predetermined independently of the clamping force.

## Claims

### Claim at position 1

-8. (canceled)

### Claim 9

A steering column for a motor vehicle, comprising:
an adjustment unit including a steering spindle and a casing pipe, the steering spindle rotatably supported in the casing pipe about a longitudinal axis thereof,
a carrier unit configured to connect to the motor vehicle and receive the casing pipe, the carrier unit including at least one clamping face facing the casing pipe, and
a clamping device configured in a fixing position to clamp the clamping face against the casing pipe with a clamping force to fix the adjustment unit relative to the carrier unit at least longitudinally and configured in a release position to release the clamping face from the casing pipe and release an adjustment of the adjustment unit relative to the carrier unit at least longitudinally,
wherein the carrier unit includes at least one sliding face which faces the casing pipe and along which the casing pipe is longitudinally movable in the release position, and
wherein the sliding face is arranged on a support device which presses the sliding face against the casing pipe with a support force predetermined independently of the clamping force.

### Claim 10 (depends on 9)

The steering column of claim 9, wherein the sliding face is formed on a sliding member which is supported so as to be able to be moved toward and counter to the casing pipe.

### Claim 11 (depends on 9)

The steering column of claim 9, wherein the support device comprises one or both of a resilient element and an actuator.

### Claim 12 (depends on 10)

The steering column of claim 10, wherein the sliding member is arranged in a recess which is open in the direction toward the casing pipe in the carrier unit.

### Claim 13 (depends on 9)

The steering column of claim 9, wherein the sliding face is recessed relative to the casing pipe in the carrier unit in a flush-mounted manner.

### Claim 14 (depends on 9)

The steering column of claim 9, wherein the support force applied by the support device to the sliding face is directed counter to the direction of a weight force.

### Claim 15 (depends on 9)

The steering column of claim 9, wherein the support force is substantially greater than or equal to the component of the weight force of the adjustment unit applied to the sliding face including attachments which are fitted thereto.

### Claim 16 (depends on 9)

The steering column of claim 9, wherein the sliding face is constructed in a friction-reducing manner and/or the clamping face is constructed in a friction-increasing manner with respect to friction on the casing pipe.
