Rear Spring Seat Reinforcement for Suspension Rigidity
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Solution Overview
Problem
Conventional rear spring seats for vehicles fail to adequately reinforce the outer and inner rigidity, leading to unstable support of loads transmitted from the rear suspension.
Innovation Solution
The proposed reinforcing structure includes outer and inner reinforcing members with specific cross-sectional shapes and attachments to the wheel housing and lower panel body, along with a secondary reinforcing member, to enhance the rigidity of the rear spring seat by covering its lower ends and forming closed cross-sections, thereby stabilizing the load support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional rear spring seat with a single reinforcing bracket is used, then the structure is simple, but the outer and inner rigidity is insufficient leading to unstable load support
Solution Approach 1:
The reinforcing structure is divided into multiple independent components: outer reinforcing members (first and second), inner reinforcing members (first and second), and a diaphragm. Each segment performs a specific reinforcement function, allowing the system to achieve high rigidity through distributed structural elements rather than a single complex component.
Solution Approach 2:
Multiple reinforcing members are combined to work together as an integrated reinforcement system. The outer and inner reinforcing members are positioned at different locations but function collectively to provide comprehensive rigidity enhancement, merging their individual strengthening effects into a unified structural solution.
2Reliability
If outer and inner reinforcing members are added to the rear spring seat, then the rigidity is significantly increased, but the number of components and assembly complexity increases
Solution Approach 1:
Reinforcing members are strategically positioned at specific locations where rigidity enhancement is most needed: outer reinforcing members at the outer portions, inner reinforcing members at the inner portions, and a diaphragm at the central region. This localized reinforcement approach achieves high reliability by concentrating structural strength where loads are transmitted, rather than uniformly reinforcing the entire structure.
Solution Approach 2:
The reinforcing structure utilizes three-dimensional spatial arrangement with members positioned at different heights and locations. The L-shaped cross-sections and vertical positioning of reinforcing members create a multi-dimensional reinforcement system that provides comprehensive load support stability through spatial distribution rather than single-plane reinforcement.
3Strength
If reinforcing members with L-shaped cross-sections are used to form closed sections, then the rigidity is enhanced, but the manufacturing complexity increases
Solution Approach 1:
The reinforcing members are pre-formed with L-shaped cross-sections during manufacturing, creating the closed-sectional geometry in advance. This preliminary shaping allows the complex geometric form to be produced as a single integrated component rather than requiring complex assembly operations, reducing manufacturing complexity while maintaining the rigidity-enhancing closed-section structure.
Data Source
AI summary
A reinforcing structure of a rear spring seat for a vehicle includes a rear spring seat mounted on a rear side member and outer and inner reinforcing members provided at the outside and inside of the rear spring seat, respectively, wherein a lower portion of the outer reinforcing member is extended to cover an outer lower end of the rear spring seat.