Nested Steering Column Structure for Longer Telescope Stroke
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional steering columns face challenges in increasing telescope stroke without lengthening the overall column, which is difficult due to self-locking screw conditions, and increasing motor power for quicker telescoping is disadvantageous in terms of noise, weight, and size.
Innovation Solution
A steering column design featuring a mounting bracket, upper and lower columns with bolt screws, and a telescope driving unit with a motor that rotates the bolt screw, allowing the upper column to slide within the lower column, thereby increasing telescope stroke and speed without increasing motor power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the screw length is increased to increase telescope stroke, then the telescope stroke is improved, but the overall length of the steering column is excessively increased
Solution Approach 1:
The upper column is inserted into the lower column, forming a nested structure. The upper column includes an inner circumferential surface that receives the lower column, allowing the lower column to slide within the upper column during telescoping. This nesting arrangement enables increased telescope stroke without proportionally increasing the overall length of the steering column.
2Length of moving object
If the lead of the screw is increased to increase telescope stroke, then the telescope stroke is improved, but the self-locking condition of the screw becomes difficult to realize
Solution Approach 1:
The steering column is divided into an upper column and a lower column that can slide relative to each other. The lower column includes an outer circumferential surface that slides along the inner circumferential surface of the upper column. This segmentation replaces the traditional single screw mechanism with a sliding column structure, enabling telescope stroke adjustment while maintaining self-locking capability through the sliding interface.
3Speed
If motor power is increased to increase telescope speed, then the telescope speed is improved, but noise, weight, and size increase
Solution Approach 1:
The steering column system incorporates dynamic telescoping capability through the sliding interface between the upper and lower columns. The lower column can slide along the inner circumferential surface of the upper column, enabling quick telescopic motion. This dynamic structure achieves rapid telescoping without requiring excessive motor power, thereby avoiding increased noise, weight, and size.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design secures a wider space for the driver's convenience during self-driving, facilitates easier installation, and enables quick telescopic motion without degrading anti-noise capabilities.
Implementation Method 1
a telescope driving unit including a first motor for rotating the first bolt screw
Implementation Method 2
a first bolt screw including a first bolt part coupled to the first nut screw and a second bolt part coupled to the second nut screw
Data Source
AI summary
According to a steering column for a vehicle according to the present embodiments, a wide convenient space can be secured for a driver in a teles-in state by increasing a teles-stroke while securing an installation space for the steering column, the installation of the steering column is spatially convenient despite the increased teles-stroke, and a teles operation can be quickly performed without increasing the output of a motor, and thus a convenient space can be quickly secured for a driver without degraded noise performance.