Synthetic Resin Rotation Induction Device for Vehicle Steering
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Solution Overview
Problem
The existing rotation induction devices for vehicles face challenges in maintaining smooth steering operations due to fatigue damage from minute shaking and vibration loads experienced by ball or needle rolling bearings used in suspension systems.
Innovation Solution
A rotation induction device comprising an upper and lower case member and a center plate, all made of synthetic resin, with integrated lubricant storage parts to enhance operability and reduce friction, and additional features like push prevention and stress distribution parts to prevent foreign matter inflow and manage horizontal loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rolling bearing using ball or needle is applied, then the rotation induction device can operate initially, but the bearing becomes fatigue-damaged by minute shaking and vibration load making it difficult to maintain smooth steering operation
Solution Approach 1:
The patent replaces the traditional rolling bearing (ball or needle) with a synthetic resin bearing structure. This substitution eliminates the mechanical fatigue damage caused by vibration loads while maintaining the rotation induction function, thereby improving both reliability and steering smoothness.
Solution Approach 2:
The patent uses synthetic resin as the bearing material, which combines the advantages of lightweight, vibration absorption, and fatigue resistance. The synthetic resin material provides both structural integrity and damping properties to handle minute shaking and vibration loads effectively.
2Reliability
If a synthetic resin bearing is used to replace rolling bearing, then fatigue damage from vibration is reduced, but additional structures (lubricant storage part, push prevention part, stress distribution part) are needed to maintain performance
Solution Approach 1:
The patent integrates multiple functions into the synthetic resin bearing structure itself. The lubricant storage part, push prevention part, and stress distribution part are incorporated as integrated features of the bearing, reducing the need for separate components while maintaining reliability.
Solution Approach 2:
The synthetic resin bearing is designed to perform multiple functions simultaneously: it provides rotation induction, stores lubricant, prevents foreign matter inflow, and distributes stress. This multi-functionality reduces overall device complexity while improving durability.
3Ease of operation
If lubricant storage part is formed in the center plate, then friction is reduced improving operability, but the center plate structure becomes more complex
Solution Approach 1:
The center plate is designed with a porous structure that allows it to store and retain lubricant. This porous material approach provides continuous lubrication to reduce friction and improve steering smoothness without requiring complex external lubrication systems.
Solution Approach 2:
The center plate with lubricant storage capability serves itself by continuously supplying lubricant to the bearing interface. This self-lubrication mechanism reduces friction and wear while maintaining simple operation, eliminating the need for external lubrication systems.
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 synthetic resin-based rotation induction device improves the durability and longevity of the bearing system by reducing friction and preventing damage from foreign matter and horizontal loads, ensuring smoother and more stable vehicle steering operations.
Implementation Method 1
The lubricant storage part is formed in the center plate and configured to store lubricant therein
Data Source
AI summary
A rotation induction device for a vehicle includes an upper case member, a lower case member, a center plate, and a lubricant storage part. The upper case member has a piston rod disposed therethrough. The lower case member, disposed under the upper case member, has the piston rod disposed therethrough. The center plate, disposed between the upper and lower case members such that the piston rod passes through the center plate, is configured to induce either one or both of the upper and lower case members to rotate. The lubricant storage part is formed in the center plate and configured to store lubricant therein. Each of the upper case member, the lower case member, and the center plate is composed of a synthetic resin material.