Seat Cushion Frame Support Guide Device
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Solution Overview
Problem
The center seat cushion frame in luxury vehicles experiences sagging and deformation due to concentrated passenger weight, resulting from an insufficient supporting structure and material distribution, which affects the overall rigidity and comfort of the rear seat configuration.
Innovation Solution
A combination structure of a seat cushion frame that includes side and center cushion frames with a support guide device, featuring sliding pins and guide brackets, which distribute the passenger's weight across the vehicle body, enhancing the rigidity of the center cushion frame by connecting it to the side frames and preventing sagging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the center seat cushion frame is made independent and fixed to the vehicle body, then the seat structure is simplified and easier to manufacture, but the cushion frame lacks sufficient support and rigidity under concentrated passenger weight
Solution Approach 1:
The patent merges the center cushion frame with the side cushion frames by fixing the center cushion frame between the two side cushion frames. This creates a combined cushion frame structure where the center cushion frame is no longer independent but integrated with the side frames, providing mutual support and distributing passenger weight across all three frames rather than concentrating it on a single center frame.
Solution Approach 2:
The patent implements preliminary support by pre-positioning and fixing the center cushion frame between the side cushion frames before final assembly. The support guide device is pre-installed to establish the spatial relationship and support configuration, ensuring that when passengers sit, the weight distribution structure is already in place to prevent sagging.
2Volume of stationary object
If the center seat cushion frame is made independent, then the package space under the center seat is increased, but the supporting structure becomes insufficient and causes sagging under passenger weight
Solution Approach 1:
The patent combines the center cushion frame with the side cushion frames to create a unified support structure. By fixing the center cushion frame between the side frames and using the support guide device to connect all three frames, the structure achieves both adequate package space maintenance and improved stability, as the combined frames share the passenger weight load.
Solution Approach 2:
The patent segments the weight support function across three separate cushion frames (left, center, right) that are fixed together. Each frame independently supports a portion of the passenger weight, preventing any single frame from bearing excessive concentrated load. The support guide device segments the sliding movement control for each frame while maintaining their fixed spatial relationship.
3Productivity
If three passengers are seated in the rear seat with concentrated weight on the center seat, then the seat utilization is maximized, but the center cushion frame deforms and sags due to insufficient structural support
Solution Approach 1:
The patent merges the three cushion frames into a unified support system where the center cushion frame is fixed between the side frames. This combined structure distributes the concentrated weight of three passengers across all three frames rather than allowing the center frame to bear excessive load alone, preventing deformation and sagging while maintaining full seat capacity utilization.
Solution Approach 2:
The patent implements preliminary structural reinforcement by pre-fixing the center cushion frame to the side cushion frames and pre-installing the support guide device. This preliminary action ensures that when three passengers are seated and weight is concentrated on the center seat, the support structure is already in place to distribute the load and prevent deformation, maintaining reliability under maximum load conditions.
Data Source
AI summary
A combination structure of a seat frame includes: a first and a second side cushion frames installed on a first and a second sides of a seat, and configured to slide forward and rearward, wherein the first and the second sides of the seat are opposite to each other; a center cushion frame provided between the side cushion frames and having a first side fixed to the first side cushion frame; and a support guide device connected between a second side of the center cushion frame and the second side cushion frame, and configured to guide a sliding movement of each of the second side cushion frame and the center cushion frame while supporting weights of the second side cushion frame and the center cushion frame.