Vehicle Seat Side Support Frame With Insert Legs Against Deformation
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Solution Overview
Problem
Existing vehicle seat side support systems deform excessively when subjected to large loads, limiting their ability to effectively support occupants.
Innovation Solution
Incorporating insert members with first and second leg portions within the side support frames, where the first leg portions extend inward and second leg portions extend outward, and positioning the support frames between these leg portions to restrict deformation and enhance load distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If foaming molded bodies are embedded into the insides of the side support portions to increase core hardness, then the ability to support an occupant is improved, but when a large load is applied the side support portions still deform toward outer sides
Solution Approach 1:
The side support portion is constructed as a composite structure combining a flexible outer layer with an insert member having a specific leg-shaped structure. The insert member includes a first leg portion extending toward the inner side and a second leg portion extending toward the outer side, creating a composite material system that simultaneously provides hardness and deformation resistance.
Solution Approach 2:
The insert member is segmented into distinct functional portions: a first leg portion that engages with the support frame from the inner side and a second leg portion that engages from the outer side. This segmentation allows each portion to independently resist deformation forces from different directions, preventing overall deformation of the side support portion.
2Strength
If the hardness of side portions is increased to improve occupant support, then support ability is enhanced, but the side portions become more prone to deformation under large loads
Solution Approach 1:
The insert member is pre-installed within the side support portion before the side support portion is attached to the support frame. The first and second leg portions are positioned in advance to engage with the support frame, creating a pre-configured deformation resistance mechanism that activates immediately when loads are applied.
Solution Approach 2:
The insert member changes the physical parameters of the side support portion by introducing a rigid structural element with specific geometric characteristics (leg portions extending in opposite directions). This parameter change transforms the side support portion from a purely flexible structure to a composite structure with enhanced stiffness and deformation control capabilities.
Data Source
AI summary
Since each covering portion (each side frame) is interposed between a first leg portion and a second leg portion of a corresponding one of insert members, even if a relatively large load is applied to side portions of a cushion pad from an occupant, it is possible to restrict deformation of the side portions toward outer sides in left-right directions (rotation of the insert members) by engagement of each support frame with the first and second leg portions. Therefore, it is possible to improve the ability to support an occupant by the side portions.