Vehicular Seat Support Base Relocation for Housing Rigidity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicular seats that house a seat body in a floor below the vehicle body floor have complex structures with components on both the vehicle body and housing floors, leading to reduced support rigidity and increased difficulty in switching between seatable and housed states, especially under inertial forces from collisions.
Innovation Solution
A vehicular seat design featuring a support base connected to the vehicle body floor, with a support leg and leg holding member that detachably connect, eliminating components from the housing floor, enhancing support rigidity and simplifying the switching operation by reducing the leg's total length and deflection width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If component parts such as the leg member and holding groove are mounted on both the vehicle body floor and housing floor, then the seat body can be supported, but the housing structure becomes complex
Solution Approach 1:
The patent extracts the holding groove from the housing floor and relocates it entirely to the vehicle body floor. The leg member remains unchanged in function but its mounting points are repositioned, with the lower end now connecting to the vehicle body floor instead of the housing floor. This extraction simplifies the housing structure by eliminating the need for housing floor mounting components while maintaining the seat body's support capability.
2Ease of operation
If the holding groove is fixed to the housing floor, then the leg member can be held, but the total length of the leg member increases requiring increased support rigidity
Solution Approach 1:
The holding groove is extracted from the housing floor and repositioned to the vehicle body floor. This relocation shortens the effective length of the leg member that needs to span across the housing floor, thereby reducing the deflection width and decreasing the support rigidity requirements for the leg member, housing floor, and holding groove assembly.
3Reliability
If the leg member has a long total length to connect seat cushion and housing floor, then the seat cushion is supported, but the deflection width increases making attachment difficult
Solution Approach 1:
By extracting the holding groove from the housing floor and relocating it to the vehicle body floor, the leg member's effective spanning length is reduced. This shorter length decreases the deflection width of the leg member, making the attachment and detachment operations easier while still providing adequate support for the seat cushion through the revised structural arrangement.
4Reliability
If components are mounted on the housing floor, then the seat body can be housed, but the housing space is reduced
Solution Approach 1:
The mounting components (holding groove and leg member lower end) are extracted from the housing floor and relocated to the vehicle body floor. This removal of components from the housing floor area increases the available housing space on the housing floor while the seat body housing capability is maintained through the alternative mounting arrangement on the vehicle body floor.
Data Source
AI summary
A vehicular seat capable of housing a seat back and a seat cushion connected to the seat back in a housing floor provided in a position lower than a vehicle body floor is described. The vehicular seat includes a support base connected to the vehicle body floor and to a lower end side of the seat back, a support leg having an upper end side mounted to the seat cushion and a lower end side connectable to the support base, and a leg holding member mounted to the support base and that detachably holds the lower end side of the support leg. The seat back is connected to the support base via right and left connecting brackets disposed on sides of the seat back and having first end sides mounted to corresponding lower end sides of the seat back and second end sides pivotally connected to the support base.