Vehicle Seat Frame Width Reduction via Longitudinal Bracket Integration
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Solution Overview
Problem
Existing vehicle seat frames with closed cross-sectional configurations face challenges in maintaining high structural strength while minimizing width, as components like arm plates and reclining devices protrude, increasing the seat's width.
Innovation Solution
A vehicle seat design featuring a side frame with a closed cross-sectional configuration, a plate-like bracket, and a reclining device connected via the bracket, allowing these components to be arranged side by side without overlapping, thus maintaining structural strength without increasing width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a closed cross-sectional side frame is used to achieve high structural strength, then bending deformation is reduced, but the seat width increases due to protruding components
Solution Approach 1:
The reclining device is repositioned from a lateral arrangement (width direction) to a longitudinal arrangement (front-rear direction) along the side frame. This dimensional change allows the high-strength closed cross-sectional side frame to be maintained while eliminating width increase, as the reclining device now extends in the front-rear direction rather than protruding laterally.
2Strength
If arm plates and reclining devices are bonded to the outer side of the side frame, then structural strength is improved, but the seat width increases
Solution Approach 1:
The attachment arrangement is changed from lateral bonding (increasing width) to longitudinal integration along the side frame. The reclining device is positioned to extend in the front-rear direction, utilizing the longitudinal space along the side frame rather than protruding laterally, thus maintaining structural strength without increasing seat width.
Solution Approach 2:
The side frame and reclining device are integrated into a unified longitudinal structure where the reclining device is positioned along the side frame rather than as a separate lateral attachment. This merging allows both components to share the same spatial envelope in the width direction while maintaining their individual structural functions.
Data Source
AI summary
Embodiments of the present invention may include a vehicle seat having a side frame, a bracket, and a reclining device. The side frame has a closed cross-sectional configuration. The bracket is formed from a plate-like member. The bracket has a side surface to be connected with the side frame. The reclining device is connected to the side surface of the bracket to which the side frame is connected, so that the reclining device is connected to the side frame via the bracket.