Vehicle Seat Back Frame Lateral Pipe Elimination
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Solution Overview
Problem
Conventional vehicle seat designs cause uncomfortable contact for occupants due to lateral pipes in the seat back frame, leading to impaired seating feelings, increased assembly workload, and weight, as they consist of numerous parts.
Innovation Solution
A vehicle seat design featuring a seat back frame with reduced parts, eliminating the lateral pipe by using right and left side frames connected by an upper and lower frame with a connecting pipe member, where the seat belt retractor is attached to a bracket on the connecting frame, allowing for improved seating comfort and reduced assembly and weight through a simplified structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a lateral pipe is added to the seat back frame to connect side frames, then the structural stability is improved, but the occupant comfort deteriorates due to uncomfortable contact
Solution Approach 1:
The patent removes the lateral pipe from the seat back frame structure. Instead of connecting side frames with a lateral pipe, the invention uses only vertical side frames connected to upper and lower frames, eliminating the source of uncomfortable contact while maintaining structural integrity through the alternative framing approach.
2Strength
If multiple pipes are used to form the seat back frame, then the structural strength is improved, but the number of parts increases leading to increased assembly workload
Solution Approach 1:
The patent simplifies the seat back frame by merging the function of multiple pipes into fewer components. The lateral pipe is eliminated and its structural role is redistributed to the remaining vertical side frames and connecting frames, reducing the total number of parts while maintaining necessary structural strength.
3Stability of the object's composition
If multiple pipes are used to form the seat back frame, then the structural stability is improved, but the weight of the seat back frame increases
Solution Approach 1:
The patent eliminates the lateral pipe from the seat back frame structure. By removing this component, the overall weight of the seat back frame is reduced while the structural stability is maintained through the optimized arrangement of remaining vertical side frames and connecting frames.
Data Source
AI summary
A vehicle seat including a seat cushion, a seat back, a seat belt, and a seat belt retractor is provided. The vehicle seat includes: a seat back frame comprising: right and left side frames disposed at a distance away from each other in a lateral direction; an upper frame connecting upper end portions of the right side frame and the left side frame; a lower frame connecting lower end portions of the right side frame and the left side frame; and a connecting frame made of a pipe member and disposed at distances away from the right and left side frames and connecting the upper frame and the lower frame; and a first bracket by which the seat belt retractor is attached to the seat back frame. The first bracket is provided on the connecting frame at distances away from the upper frame and the lower frame.