Seat support for seating furniture of all kinds
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Solution Overview
Problem
Existing seat cushions for seating furniture often rely on blower units for ventilation, which are cumbersome and difficult to clean, and conventional backrest cushions obstruct airflow, leading to sweating and discomfort.
Innovation Solution
A seat cushion with a backrest designed from interconnected coil springs twisted at 180 degrees, secured by hooks or ropes, creating a ventilated cavity, and a spacer fabric with ultra-thin threads for air circulation, eliminating the need for blower units and ensuring constant ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blower units are used for seat cushion ventilation, then ventilation function is achieved, but device complexity and ease of cleaning deteriorate
Solution Approach 1:
The patent removes the blower unit from the ventilation system entirely, extracting the mechanical ventilation component and replacing it with a passive spring-based structure that creates ventilation through its geometric configuration rather than active airflow generation
Solution Approach 2:
The spring structure serves its own ventilation function through its inherent elastic deformation and geometric design, creating air channels and gaps that allow passive airflow without requiring external power sources or mechanical actuators
2Reliability
If blower units are used for seat cushion ventilation, then ventilation function is achieved, but ease of cleaning deteriorates
Solution Approach 1:
By removing the blower unit, the patent eliminates the complex internal components (motors, filters, ducts) that are difficult to access and clean, leaving only the simple spring structure that can be easily wiped or washed
Solution Approach 2:
The entire ventilation structure is made from uniform spring material with consistent geometry, creating a homogeneous surface that is uniformly easy to clean without hidden corners, crevices, or separate components
3Ease of operation
If conventional backrest cushions are used, then back support is provided, but airflow obstruction occurs leading to moisture buildup
Solution Approach 1:
The backrest cushion is designed with a porous spring structure that creates numerous channels and gaps throughout the material, allowing air to permeate through the cushion and prevent moisture accumulation by maintaining continuous airflow
Solution Approach 2:
The backrest cushion is divided into multiple spring elements arranged in a grid pattern, creating segmented channels that guide airflow across the entire surface area, preventing stagnant zones where moisture could accumulate
4Reliability
If coil springs are twisted together to create ventilation surface, then self-ventilation is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple functions into the single spring structure: the springs provide both the mechanical support function and the ventilation function through their twisted configuration, eliminating the need for separate ventilation components
Solution Approach 2:
Instead of creating ventilation by adding channels or holes to a solid cushion, the patent inverts the approach by using the spring structure itself to create open space, where the gaps between twisted springs form the ventilation pathways
Data Source
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AI summary
The invention relates to a seat cushion for seating furniture of all kinds, which enables self-ventilation without a blower unit, is portable and easy to clean, and is easily adaptable.