Seat Cushion Multi-Point Spring Support to Prevent Lateral Deviation
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Solution Overview
Problem
Conventional seats lack adequate support and cushioning performance, with existing solutions either providing insufficient support or suffering from poor cushioning due to lateral deviation of buffer members.
Innovation Solution
A seat design featuring a rigid supporting frame with laterally arranged seat cushions and supporting members, each equipped with guiding rods and main springs that compress to provide multi-point support and cushioning, preventing deviation and adjusting to different sitting postures and pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If buffer members are used to provide cushioning performance, then cushioning performance is improved, but the buffer members easily deviate later excessively to decrease the support
Solution Approach 1:
The guiding rod acts as an intermediary component between the buffer member and the assembling recess. It constrains the buffer member to move only in the vertical direction while allowing it to provide cushioning compression, thereby preventing lateral deviation and maintaining support stability.
Solution Approach 2:
The guiding rod provides localized guidance and constraint at the specific location where the buffer member is installed. This local quality control ensures that the buffer member maintains its proper orientation and position, preventing excessive lateral deviation while preserving cushioning performance.
2Manufacturing precision
If positioning protrusions are used to guide buffer members, then positioning is provided, but the positioning protrusions cannot effectively guide the buffer members to compress vertically
Solution Approach 1:
The guiding rod serves as an intermediary guiding mechanism that replaces the insufficient positioning protrusions. It provides effective vertical guidance for the buffer member through its interaction with the through hole, ensuring proper compression direction while maintaining positioning accuracy.
Solution Approach 2:
The guiding function is segmented into two parts: the guiding rod provides vertical movement guidance through the through hole, while the positioning protrusion provides lateral positioning. This segmentation of guiding functions allows each component to specialize in one aspect, improving overall guiding effectiveness.
3Device complexity
If only two sponge cushions are used to support the seat, then the structure is simple, but the support is insufficient
Solution Approach 1:
The supporting function is segmented between the sponge cushions and the buffer members. The sponge cushions provide initial comfort and distribute pressure, while the buffer members provide additional vertical support through spring compression. This segmentation of supporting functions increases overall support capability while maintaining relative structural simplicity.
Solution Approach 2:
The seat employs a composite supporting system combining different materials and mechanisms: sponge material for cushioning and spring buffer members for structural support. This composite approach leverages the advantages of each material type to achieve both simplicity and enhanced support capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The seat offers improved support and cushioning performance, enhancing sitting comfort by providing a stable, adjustable, and effective multi-point support configuration that adapts to varying user pressures and postures.
Implementation Method 1
the main spring is compressed along an axial direction of the shank and is mounted around the shank to avoid deviation by the shank and to provide good support
Data Source
AI summary
A seat has a supporting frame being rigid, two seat cushions disposed above the supporting frame, and two supporting members. The supporting frame has a main body and four side bodies fixedly mounted on two front ends and two rear ends of the main body. The supporting members are mounted on bottom surfaces of the seat cushions and are connected to the supporting frame. Each one of the supporting members has multiple supporting elements respectively located at a front half section and a rear half section of a corresponding one of the seat cushions. Each one of the supporting elements has a guiding rod mounted on the supporting frame and a main spring disposed around the guiding rod. The seat provides good support by the supporting frame and the supporting members and provides a cushioning performance by the main spring.