Steering Column Impact Absorber Reduces Operational Noise
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Solution Overview
Problem
Steering columns for vehicles generate operational noise due to impacts between the adjusting bolt and tilting or telescoping guide holes during tilting or telescoping operations, affecting the operational feeling.
Innovation Solution
Incorporating an impact absorbing member with a hollow pipe shape and protruding impact absorbing parts that are supported by the guide holes, designed to absorb the impact energy when the adjusting bolt collides with the guide holes, reducing noise and improving operational feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the adjusting bolt directly contacts the tilting or telescoping guide holes during operation, then the structural simplicity is maintained, but operational noise increases due to impact collisions
Solution Approach 1:
The patent introduces an impact absorbing member as an intermediary component positioned between the adjusting bolt and the guide holes. This mediator absorbs the impact energy during collisions, preventing direct contact between the bolt and guide holes, thereby reducing operational noise while maintaining overall structural simplicity
Solution Approach 2:
The impact absorbing member is pre-installed in the guide holes to provide cushioning before any collision occurs. This beforehand cushioning ensures that when the adjusting bolt contacts the guide holes during tilting or telescoping operations, the impact is already softened, preventing noise generation without requiring complex active damping systems
2Ease of operation
If the adjusting bolt collides with the guide holes during tilting or telescoping operations, then the mechanical linkage is maintained, but operational feeling deteriorates due to impact vibrations
Solution Approach 1:
The impact absorbing member serves as a mediator that maintains the mechanical linkage between the adjusting bolt and the steering column while simultaneously absorbing impact vibrations. This ensures smooth operational feeling during tilting and telescoping without compromising the mechanical connection strength
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
The impact absorbing member effectively reduces operational noise and enhances the operational feeling by absorbing impact energy during tilting and telescoping operations, ensuring smoother vehicle steering.
Implementation Method 1
an impact absorbing member which has a hollow pipe shape into which the adjusting bolt is inserted, and which has tilting impact absorbing parts protruding on an outer peripheral surface thereof supported by opposite lengthwise ends of the tilting guide hole and telescoping impact absorbing parts protruding on the outer peripheral surface thereof supported by opposite lengthwise ends of the telescoping guide hole
Data Source
AI summary
The present invention relates to a steering column for a vehicle. The steering column of a vehicle includes: an adjusting bolt that passes through tilting guide holes having slot shapes and are formed on opposite sides of a plate bracket, and telescoping guide holes having slot shapes and are formed on opposite sides of a distance bracket; and an impact absorbing member having a hollow pipe shape into which the adjusting bolt is inserted therein, and having tilting impact absorbing parts, which protrude on an outer peripheral surface thereof that are supported by opposite lengthwise ends of the tilting guide hole, and telescoping impact absorbing parts, which protrude on the outer peripheral surface thereof that are supported by opposite lengthwise ends of the telescoping guide hole. The steering column for a vehicle can allow an impact absorbing member no absorb an impact that is generated when an adjusting bolt collides with a tilting guide hole or a telescoping guide hole during a tilting or telescoping operation, thereby improving the operational feeling and reducing operational noise.