# US 12,179,832 B1 · Telescopic multifunctional steering column

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,179,832 B1
- Document ID: US12179832B1
- Status: Granted
- Kind: B1
- Application number: 18/812,607
- Filed: 2024-08-22
- Granted: 2024-12-31
- Earliest claimed: 2024-06-26
- Assignees: Dongguan Excar Electric Vehicle Co., Ltd
- Applicants: Dongguan Excar Electric Vehicle Co., Ltd
- Inventors: Jianhui Zhou; Runguang Zhou; Bo Wu
- Web page: https://patentgrep.com/patent/US12179832B1

## CPC

- B62D 1/185: adjustable by axial displacement, e.g. telescopically (B62D1/183, B62D1/187, B62D1/19 take precedence)
- B62D 1/184: Mechanisms for locking columns at selected positions
- 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

The disclosure relates to the technical field of steering columns, and specifically discloses a telescopic multifunctional steering column. An upper column is fixedly mounted inside a steering wheel. An outer surface of the upper column is sleeved with a lower column. In the disclosure, slidable connection is realized through a spline groove and a spline shaft, so that the steering column can extend and retract, which ensures stability and sliding smoothness of the column during the extension and retraction process. By connecting a pull bolt with a locking switch of a lifting rod through a wire rope, when the pull bolt is pulled up, a driver can adjust a length of the column according to his own needs, which improves driving flexibility and comfort. When the pull bolt retracts, the steering column is locked at a selected position.

## Claims

### Claim 1

A telescopic multifunctional steering column, comprising a steering wheel, wherein an upper column is fixedly mounted inside the steering wheel, an outer surface of the upper column is sleeved with a lower column, an outer surface of the lower column is provided with a lifting rod, and the outer surface of the upper column is provided with a housing assembly; and
a switch of the lifting rod is connected with a pull bolt through a wire rope, and the wire rope is arranged at an end portion of the pull bolt.

### Claim 2 (depends on 1)

The telescopic multifunctional steering column according to claim 1, wherein the housing assembly comprises a left housing and a right housing, and the pull bolt is inserted inside the left housing, an outer surface of the left housing being provided with a light control module, and an outer surface of the right housing being provided with an ignition module.

### Claim 3 (depends on 1)

The telescopic multifunctional steering column according to claim 1, wherein the upper column and the lower column are connected through a spline shaft and a spline groove.

### Claim 4 (depends on 1)

The telescopic multifunctional steering column according to claim 1, wherein the outer surface of the lower column is sleeved with a fixing bracket.

### Claim 5 (depends on 1)

The telescopic multifunctional steering column according to claim 1, wherein the left housing and the right housing are connected and fixed through a plurality of sets of screws.

### Claim 6 (depends on 1)

The telescopic multifunctional steering column according to claim 1, wherein one end of the lifting rod is connected to the lower column through a first nut, and the other end of the lifting rod is connected to the upper column through bolts and second nuts.