Fiber-Reinforced Spring Guide Structure for Cylinder Insertion Loads
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Resin spring seats used in vehicle suspension systems are prone to damage due to their low strength and brittleness when a cylinder is inserted, posing a risk of structural failure.
Innovation Solution
A spring guide made of fiber-reinforced resin with a disc-shaped base portion and a barrel portion, where the reinforcing fibers are oriented in the circumferential direction to enhance strength, and features such as ribs and a hub to improve structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a resin spring seat is used to support the coil spring, then the weight is reduced and the damping mechanism is integrated, but the cylindrical portion is damaged when the cylinder is inserted through it due to low strength and brittleness
Solution Approach 1:
The patent uses fiber-reinforced resin for the cylindrical portion to combine the light weight advantage of resin with the high strength of fibers. The fibers are oriented in the circumferential direction to specifically reinforce the cylindrical portion against insertion damage while maintaining overall weight reduction.
Solution Approach 2:
The patent applies different material properties to different parts of the spring seat. The cylindrical portion uses fiber-reinforced resin with circumferential fiber orientation for high strength, while other parts can use standard resin to maintain light weight and cost-effectiveness.
2Device complexity
If the cylinder is inserted through the cylindrical portion of the resin spring seat, then the assembly is simplified, but the cylindrical portion is damaged due to radial load during insertion
Solution Approach 1:
The cylindrical portion is made of fiber-reinforced resin with fibers oriented in the circumferential direction, providing high strength to withstand radial loads during cylinder insertion while maintaining the simplified integrated assembly design.
Solution Approach 2:
The patent changes the material parameters of the cylindrical portion by using fiber-reinforced resin instead of plain resin, and specifically orients the fibers in the circumferential direction to optimize strength for the insertion process while keeping the assembly simple.
Data Source
AI summary
A spring guide made of resin, including: a base portion that is disc-shaped configured to support a coil spring, the coil spring being configured to elastically support a vehicle body; a barrel portion through which a cylinder of a shock absorber is inserted; and a first rib formed so as to project out towards an outer circumference of the spring guide from a first weld portion formed on an inner circumference of the barrel portion.