Active Mattress Rotation Using Air Cushion and Variable Friction
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Solution Overview
Problem
Conventional mattresses are difficult to rotate due to their weight, making it hard for individuals, especially senior citizens and those with disabilities, to evenly distribute wear and relocate depressed areas, as existing solutions like removable pillow tops do not address the mattress itself.
Innovation Solution
A system with slick surfaces on covers for the mattress and box spring or platform, combined with a levitation device that creates an air cushion for effortless rotation, and removable fasteners for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mattress is made heavy with coil core and foam material to provide comfort and support, then the mattress durability and comfort are improved, but the ease of rotation deteriorates
Solution Approach 1:
The patent applies the anti-weight principle by using an air cushion generated between the mattress and box spring to counteract the weight of the mattress during rotation. The air cushion creates a levitating effect that reduces the normal force between surfaces, allowing the heavy mattress to be rotated with minimal effort while maintaining its structural integrity and comfort properties.
Solution Approach 2:
The patent employs pneumatic principles by introducing air into the space between the mattress and box spring to create a cushioning effect. This air cushion reduces friction and enables easy rotation of the heavy mattress without requiring mechanical lifting or complex mechanical systems, thus maintaining mattress strength while improving operability.
2Stability of the object's composition
If the mattress is secured to the box spring with high friction to prevent movement, then the mattress stability is improved, but the ease of rotation deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the friction characteristics variable rather than fixed. The air cushion system dynamically adjusts the friction between mattress and box spring: when air is introduced, friction decreases to enable rotation; when air is removed, friction increases to provide stability. This dynamic adjustment resolves the contradiction between stability and ease of rotation.
Solution Approach 2:
The patent changes the physical parameter of friction by controlling the presence and pressure of the air cushion. By adjusting the air pressure and volume between the mattress and box spring, the system transitions between high-friction (stable) and low-friction (easy rotation) states, thereby resolving the contradiction between stability and rotational ease.
3Ease of operation
If the mattress weight is reduced to facilitate rotation, then the ease of operation is improved, but the mattress durability and comfort deteriorate
Solution Approach 1:
The patent introduces an intermediary element (air cushion) between the mattress and box spring that facilitates rotation without requiring reduction of mattress weight. The air cushion acts as a mediator that reduces the interaction force between mattress and support structure, enabling easy rotation while the mattress retains its full weight and structural integrity for durability and comfort.
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
Enables the mattress to be rotated in a horizontal plane with minimal effort, allowing for even wear distribution without the need for heavy lifting, suitable for single-person operation and reducing strain on users.
Implementation Method 1
The levitation device creates an air cushion between the mattress and the box spring under the influence of an air supply which lifts the mattress and allows the mattress to be rotated in a horizontal plane virtually effortlessly.
Data Source
AI summary
A device is disclosed for facilitating rotation of a mattress in a horizontal plane carried by a box spring or a platform. In order to facilitate rotation, slick surfaces between the mattress and the box spring or platform are selectively placed in contact in order to reduce the normal friction therebetween. The slick surfaces may be provided by two (2) separate covers; one cover for the mattress and one cover for the box spring or platform. A first cover is provided with a slick and non-slick surface. In order to further facilitate rotation, a second cover includes a slick surface on one side and forms part of a levitation device. The other side of the second cover may be formed with a slick or a non-slick surface. A levitation device creates an air cushion between the mattress and the box spring under the influence of an air supply which lifts the mattress and allows the mattress to be rotated in a horizontal plane virtually effortlessly.