Vehicle Stud with Radial Ribs for Anti-Slipping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current axial loaded studs rely on friction between the stud and knuckle, which can lead to play and noise if not well clamped, necessitating larger screws for secure attachment, increasing costs and weight.
Innovation Solution
A stud member with radial ribs on its outer wall and a clamping member made of a softer material, such as aluminum, to enhance mechanical grip and reduce reliance on friction, allowing for smaller fastening components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If larger screws are used to secure safe attachment and withstand pulling forces, then the reliability and anti-slipping performance are improved, but the weight and cost of the assembly increase
Solution Approach 1:
The invention applies local quality by adding ribs only to specific regions of the stud member where clamping force is needed, rather than increasing the size of the entire assembly. The ribs are strategically positioned on the outer wall of the shaft portion to create localized gripping points that enhance anti-slipping performance without requiring larger fastening components throughout the entire assembly.
Solution Approach 2:
The invention uses composite materials by combining a steel shaft portion with an aluminum clamping member. The softer aluminum material deforms to accommodate the ribs on the steel shaft, creating a composite structure where the harder steel provides structural integrity and the softer aluminum provides conforming grip, achieving high reliability without excessive weight.
2Force
If larger screws are used to secure safe attachment, then the clamping force is improved, but the cost and weight of the assembly increase
Solution Approach 1:
The invention segments the clamping function by separating it from the fastening member and embedding it directly into the stud member through the ribs. This segmentation allows the clamping force to be generated locally at the interface between the ribs and the clamping member, rather than relying entirely on the fastening member to transmit and distribute clamping force, enabling smaller fasteners to be used.
Solution Approach 2:
The invention adds another dimension to the clamping mechanism by introducing radial ribs that extend perpendicular to the axial direction of the stud. This radial dimension creates additional contact points and mechanical interlocking between the stud and clamping member, generating clamping force through a different geometric dimension rather than relying solely on axial compression from large fasteners.
3Device complexity
If friction between stud and knuckle is relied upon, then the assembly is simpler, but play and noise occur when not well clamped
Solution Approach 1:
The invention applies self-service by making the stud member generate its own clamping force through the ribs that mechanically engage with the clamping member. This self-generated clamping action occurs without requiring additional active components or complex adjustment mechanisms, maintaining simplicity while ensuring reliable connection stability through the passive mechanical interlocking of the ribs with the clamping member material.
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 radial ribs provide enhanced gripping, reducing the risk of slippage and noise, minimizing the need for larger screws, thereby decreasing costs and weight while maintaining clamping force.
Implementation Method 1
the one or more ribs may deform an inside wall of the clamping member to increase grip
Implementation Method 2
the main body of the clamping member is made of a first material, and the shaft portion of the stud member is made of a second material, and wherein the first material is softer than the second material
Data Source
AI summary
An assembly for supporting pulling forces of a suspension member of a vehicle comprises a stud member comprising a shaft portion having one or more ribs extending in a radial direction on an outer wall of the shaft portion, a clamping member comprising a main body with a bore defined by an inside wall and arranged to receive the shaft portion, and a fastening member arranged to fasten the clamping member around the shaft portion when the shaft portion is inside the bore, wherein the main body of the clamping member is made of a first material, and the shaft portion of the stud member is made of a second material, and wherein the first material is softer than the second material.