Cushion and mattress
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Solution Overview
Problem
Existing cushions and mattresses fail to provide sufficient adjustability in resilient characteristics to accommodate changes in user muscle mass and weight over time, necessitating frequent replacement with new cushions.
Innovation Solution
A cushion and mattress design featuring interchangeable and reversible upper and lower cushions or cushion layers with varying resilient characteristics, allowing for multiple combinations and adjustments to maintain optimal comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cushion has optimal resilient characteristics for a user when the user first begins to use the cushion, then the cushion provides optimal comfort initially, but the muscle mass and weight of the user may be changed over a long period of time due to muscle training and the like, and thus the optimal resilient characteristics for the user are changed, necessitating replacement of the cushion
Solution Approach 1:
The cushion is divided into multiple independent cushion layers with different resilient characteristics. Each layer can be independently selected and combined, allowing the user to adjust the overall resilient characteristic by changing the combination of layers. This segmentation enables adaptability without requiring a completely different cushion structure.
Solution Approach 2:
The cushion system is designed to be dynamically adjustable rather than fixed. Users can change the resilient characteristics over time by reconfiguring or replacing cushion layers, making the cushion adaptable to changes in user body weight and muscle mass throughout the year.
2Adaptability or versatility
If the cushion has fixed resilient characteristics, then the manufacturing process is simple, but when the body shape of the user such as the weight and the muscle mass is changed, it is necessary to purchase a new cushion to replace the cushion being used
Solution Approach 1:
The cushion is segmented into multiple standardized layers that can be manufactured independently using similar processes. This allows each layer to be produced with consistent quality while maintaining overall manufacturing simplicity, as each segment follows the same basic manufacturing approach.
Solution Approach 2:
The cushion layers are designed with universal characteristics that allow them to be used in different combinations for different users and applications. The same basic layer structure serves multiple functions by being reconfigured, reducing the need for specialized manufacturing for each specific cushion type.
3Adaptability or versatility
If the cushion uses a single-layer structure, then the structure is simple, but there is only one option for adjusting the resilient characteristics, hence when the optimal resilient characteristics are changed, it is necessary to replace the cushion
Solution Approach 1:
The cushion is divided into multiple independent layers, each with distinct resilient characteristics. This segmentation provides multiple options for adjustment by allowing users to select and combine different layers, increasing adaptability while keeping each individual layer relatively simple in structure.
Solution Approach 2:
The cushion uses composite construction with multiple layers of different materials or densities. This composite approach enables a wide range of resilient characteristics to be achieved by combining different layers, providing numerous adjustment options without requiring each individual layer to be overly complex.
Data Source
Figure 1~2B
Figure 3(1)~3(8)
Figure 4(1)~5
AI summary
Provided is a cushion that has numerous options for adjustable rebound characteristics even when the body weight, muscle mass, etc., of a user have changed, and whereby the frequency with which an old cushion in use is replaced with another new cushion can be suppressed. Provided is a cushion constituted from an upper cushion and a lower cushion that are formed from a filament three-dimensional conjugate and arranged so as to be stacked in the vertical direction, wherein the upper cushion and the lower cushion are interchangeable in position and can each be inverted to face upward or downward, and, from among the rebound characteristics including the rebound characteristics of the upper surface of the upper cushion, the rebound characteristics of the lower surface of the upper cushion, the rebound characteristics of the upper surface of the lower cushion, and the rebound characteristics of the lower surface of the lower cushion, at least three are different from each other.