Steering Column Gap Cover With Detachable Friction-Fit Assembly
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Solution Overview
Problem
Existing methods for connecting a flexible gap coverage element to a steering column trim in vehicles require complex assembly processes involving ultrasonic welding or adhesives, leading to increased material consumption and environmental waste.
Innovation Solution
A detachable gap coverage device using a holding device with frictional positive fits to secure the flexible gap coverage element to the steering column trim, eliminating the need for special tools and adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If ultrasonic welding or adhesive bonding is used to connect the gap coverage element to the steering column trim, then the connection strength is improved, but the device complexity and material consumption increase
Solution Approach 1:
The patent replaces complex mechanical connection systems (ultrasonic welding equipment, adhesive application systems) with a simple friction-based mechanical fit. The gap coverage element is retained by frictional engagement between its protruding portion and the receiving structure of the steering column trim, eliminating the need for specialized welding or bonding equipment and reducing assembly complexity.
Solution Approach 2:
The patent extracts the connection function from complex manufacturing processes (welding, adhesive bonding) and implements it through a simple geometric interlocking design. The protruding portion and receiving structure create a self-retaining frictional connection that can be assembled without special tools or materials, separating the connection function from complex manufacturing systems.
2Strength
If ultrasonic welding or adhesive bonding is used to connect the gap coverage element, then the connection strength is improved, but the material consumption and waste increase
Solution Approach 1:
The patent substitutes material-intensive bonding processes (welding consumables, adhesives) with a mechanical friction-fit system. The connection is achieved through geometric interlocking and frictional forces between the gap coverage element's protruding portion and the steering column trim's receiving structure, eliminating the need for additional bonding materials and reducing material waste.
Solution Approach 2:
The patent employs a simple, inexpensive mechanical connection design that can be easily assembled and disassembled without specialized materials. The friction-based fit uses only the structural materials already present in the components, avoiding disposable bonding materials and enabling reuse or recycling of components without adhesive contamination.
3Ease of operation
If a detachable connection is used to simplify assembly, then the ease of operation is improved, but the connection strength may be reduced
Solution Approach 1:
The patent implements a dynamic friction-based connection that adapts to operational forces. The protruding portion and receiving structure create a frictional engagement that can accommodate the variable forces and movements in the steering column assembly while maintaining secure retention. The connection allows for easy assembly and disassembly while providing sufficient strength during normal operation through frictional forces.
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 solution provides a cost-effective and environmentally friendly connection method that reduces material waste and simplifies assembly by allowing easy detachment and reattachment without damaging the components.
Implementation Method 1
the flexible gap coverage element, which at one side is detachably fastened with a frictional positive fit to the holding device and at the other side is connectable to a fastening element
Data Source
AI summary
An arrangement for gap coverage for a variable gap between an adjustable steering column and a dashboard of a vehicle has a steering column trim and a gap coverage device. The gap coverage device has a holding device and a flexible gap coverage element, which at one side is detachably fastened with a frictional positive fit to the holding device and at the other side is connectable to a fastening element. The holding device having the flexible gap coverage element attached thereto is in turn detachably fastened with a frictional positive fit to the steering column trim.