Vehicle Seat Side Support Recessed Rear Face Material
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Solution Overview
Problem
Conventional vehicle seat side support structures face issues with insufficient support force, potential breakage due to localized body pressure, and discomfort from support wires, leading to increased complexity and parts count.
Innovation Solution
A side support structure for vehicle seats featuring a seat pad with a recessed portion on its rear face, supported by a rear face material that is integrally impregnated and hardened, dispersing body pressure and providing a protruding rear face-side support structure to enhance lateral support without abnormal noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a support wire is embedded in the back pad to supplement support force, then the support force is improved, but the body pressure is locally applied to a rigid region causing potential breakage or discomfort
Solution Approach 1:
The patent applies local quality by creating a recessed portion in the back pad at the specific location where the support wire contacts the pad. This recessed portion has different physical properties (softer, deformable) compared to the surrounding rigid regions, allowing it to absorb localized body pressure and prevent breakage or discomfort while maintaining the support wire's strength-enhancing function.
2Object-affected harmful factors
If a plane member such as felt is interposed between contact faces of the support wire and back pad to disperse body pressure, then the localized pressure is reduced, but the number of parts increases and structure becomes complicated
Solution Approach 1:
The patent merges the back pad and the pressure-dispersing function into a single integrated component. Instead of adding a separate plane member like felt between the support wire and back pad, the recessed portion is formed directly in the back pad material itself. This integration eliminates additional parts while achieving the same pressure dispersion effect through the recessed geometry that allows controlled deformation.
3Device complexity
If the back pad alone is used to form the side support structure, then the structure is simple, but the support force is insufficient
Solution Approach 1:
The patent applies asymmetry by creating a non-uniform recessed portion in the back pad with specific geometric characteristics (deeper at certain locations, varying depth and shape). This asymmetric recessed structure allows the back pad to deform in a controlled manner under body pressure, providing enhanced support force in critical areas while maintaining overall structural simplicity and avoiding the need for additional components.
Data Source
AI summary
A vehicle seat includes a side support structure supporting a body of a seated occupant in a lateral direction of the vehicle seat. The vehicle seat includes a seat pad; a support member that supports the seat pad from a rear face side; and a rear face material provided in an integrally impregnated and hardened state along a rear face shape of the seat pad. The seat pad includes a rear face-side support region. The rear face-side support region is provided with a recessed portion formed such that a region between two points in a circumferential direction of a transverse section is recessed toward a surface, the two points being supported by the support member via the rear face material. The side support structure is formed by a protruding rear face-side support structure in which a rear face of the recessed portion is hardened by the rear face material.