Air Bed Multi-Chamber Side Wall Design to Reduce Deformation and Noise
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Solution Overview
Problem
Existing air beds are prone to deformation, lack stability, and provide inadequate comfort due to uniform hardness, poor air ventilation, noise issues, and susceptibility to collapse, which affects user safety and experience.
Innovation Solution
The air bed features a mattress body with two layers of side walls, side wall air chambers, and obliquely arranged drawstrings to maintain shape and hardness, combined with a flock layer on the top surface and a cloth layer on the bottom surface for noise reduction and improved air ventilation, ensuring stability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single air chamber is used in existing air beds, then the structure is simple, but the air bed easily deforms and is not flat enough during inflation
Solution Approach 1:
The air bed is divided into multiple independent air chambers instead of using a single air chamber. Each air chamber is separated by partition walls, allowing independent inflation and deflation. This segmentation prevents deformation propagation across the entire bed and maintains flatness while keeping the overall structure manageable.
Solution Approach 2:
Different regions of the air bed are given different properties through the multi-chamber design. Each air chamber can be inflated to different pressure levels depending on local requirements, allowing localized adjustment of hardness and support characteristics while maintaining overall stability.
2Shape
If drawstrings are vertically connected to face sheet and bottom sheet, then the inflatable mattress can be shaped, but the joint seam is concentrated with force causing easy breaking
Solution Approach 1:
The drawstrings are arranged in an inclined pattern rather than vertical connections. This asymmetric arrangement distributes the tensile forces generated during inflation across a wider area of the face sheet and bottom sheet, preventing concentration of stress at single joint seams and reducing the risk of tearing.
Solution Approach 2:
The drawstrings are positioned at inclined angles relative to the horizontal plane, introducing a dimensional change from vertical to inclined orientation. This angular arrangement transforms the force distribution pattern, spreading loads across multiple connection points and reducing peak stresses at any single joint.
3Device complexity
If existing air beds have uniform hardness degree, then the structure is simple, but it cannot meet the requirements of two or more people on the same air bed
Solution Approach 1:
The air bed is segmented into multiple independent air chambers that can be independently adjusted. This allows different sections of the bed to have different hardness levels, enabling customization for multiple users with different weight and comfort requirements while maintaining a relatively simple overall structure.
Solution Approach 2:
The air chambers are designed to be dynamically adjustable, allowing users to inflate or deflate individual chambers according to their preferences. This dynamic adaptability enables the same air bed to accommodate different users and their specific comfort needs without requiring a completely different design for each user.
4Ease of manufacture
If traditional drawstring structures are used, then the manufacturing is simple, but the bed body is easy to be locally collapsed or convex upwards
Solution Approach 1:
The drawstrings are positioned at inclined angles rather than vertically, creating an asymmetric force distribution pattern. This inclined arrangement provides better lateral support and prevents local collapse or convexity by distributing stabilizing forces more evenly across the mattress structure during inflation and use.
Data Source
AI summary
The present invention discloses an air bed including a mattress body formed by a top surface, a bottom surface and a side wall. The mattress body is provided with at least two layers of side walls being an inner side wall and an outer side wall respectively. The inside of the inner side wall forms a bed air chamber of the mattress body. A side wall air chamber of the mattress body is formed between the inner side wall and the outer side wall. The inside of the side wall air chamber between the inner side wall and the outer side wall is connected with a plurality of side wall drawstrings. The side wall drawstrings form a bed edge of the mattress body with the inner side wall, the outer side wall, and the side wall top surface/side wall bottom surface respectively.