Recliner Attachment Bracket With Hollow Sections for Lower Weight
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Solution Overview
Problem
The existing recliner attachment brackets in vehicle seats, made of closed-section structural materials, face a trade-off between achieving necessary strength and weight reduction, as they tend to be heavy due to their structural design.
Innovation Solution
A recliner attachment bracket is designed using a combination of plate materials forming a closed-section structure, where two plate surfaces are joined by pressing, creating hollow sections and a flange portion, allowing for integral formation with the side frame or as a separate component, and employing methods like welding or adhesion to enhance strength while reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a bracket made of closed-section structural material is used to attach a recliner, then the necessary strength is secured, but the weight of the bracket becomes large
Solution Approach 1:
The bracket is divided into multiple plate materials (first plate material and second plate material) that are joined together, rather than using a single solid closed-section structure. This segmentation allows each plate to be optimized for specific functions while reducing overall material usage and weight.
Solution Approach 2:
The bracket uses a composite structure combining multiple plate materials joined together to form a closed-section configuration. This composite approach provides the necessary strength through the combined structural integrity of the plates while using less material than a traditional solid closed-section bracket, thereby reducing weight.
2Weight of moving object
If two plate materials are joined by pressing to form hollow closed-section structures, then weight reduction is achieved, but the risk of plate separation increases
Solution Approach 1:
The pressing operation is applied locally at specific regions of the plate materials to create hollow closed-section structures where needed, rather than uniformly throughout. This localized pressing maintains structural integrity at critical joints while reducing overall material usage and weight.
Solution Approach 2:
The two plate materials are joined together through pressing to merge into a single integrated bracket structure with hollow closed-section formations. This merging creates interlocking features and shared structural elements that prevent separation while reducing the total material required compared to separate components.
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
This design achieves the necessary strength for the recliner attachment while minimizing weight, allowing for effective integration with the side frame and reducing the need for additional components, thus contributing to overall seat weight reduction.
Implementation Method 1
surfaces of two plate materials are joined to each other by pressing a central part of the closed-section structural material while hollow closed-section structures are left on both sides of the closed-section structural material
Implementation Method 2
the plate materials the surfaces of which are joined to each other are coupled with each other so as not to be separated away in an overlapping direction
Data Source
AI summary
A recliner attachment bracket includes a closed-section structural material having a recliner attachment portion. The recliner attachment portion is configured such that surfaces of two plate materials are joined to each other by pressing a central part of the closed-section structural material while hollow closed-section structures are left on both sides of the closed-section structural material. A lower end of the recliner attachment portion is constituted by only one of the plate materials.