Mattress
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Solution Overview
Problem
Conventional mattresses that tilt to change body posture often cause individuals to slip down, making it difficult to change position securely and leading to a sense of insecurity.
Innovation Solution
A mattress design featuring a movable part with a rotatably movable plate and an actuator, where the first mattress part rotates upward about a predetermined axis while the second mattress part remains level, preventing slipping and allowing easy posture change, with the actuator using inflatable/contractible bags to adjust rotation angles and pressure sensors for control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the entire mattress is tilted to change body posture, then the body posture can be changed, but the person is likely to slip down along the tilted mattress
Solution Approach 1:
The mattress is divided into a first mattress part (rotatable) and a second mattress part (stationary support). The first mattress part can be tilted independently while the second mattress part remains level to provide stable support and prevent slipping. This segmentation allows the tilting function to work effectively without causing the entire mattress to slide, resolving the contradiction between posture change capability and slipping prevention.
2Ease of operation
If the entire mattress is rotated, then the body posture can be changed, but the upper/lower movement of the mattress increases causing sense of insecurity
Solution Approach 1:
The mattress is segmented into a rotatable first mattress part and a stationary second mattress part. Only the first mattress part rotates to change body posture, while the second mattress part remains fixed in position. This segmentation isolates the rotational movement to a localized area, preventing excessive vertical movement of the entire mattress and maintaining stability for users nearby.
3Ease of operation
If the first mattress part is rotated upward, then the body posture can be changed easily, but the device complexity increases
Solution Approach 1:
The rotatable mechanism is driven by an inflatable/contractible bag (pneumatic actuator) that expands and contracts to rotate the first mattress part upward or downward. This pneumatic actuation method replaces complex mechanical motors and gear systems with a simpler, more reliable inflatable bag mechanism, reducing overall device complexity while maintaining ease of operation for posture changes.
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 design effectively prevents slipping during tilting, allows easy body posture changes, and reduces vertical movement, enhancing user security and comfort by maintaining a stable surface for the user and nearby individuals.
Implementation Method 1
an actuator for rotating the movable plate, wherein the actuator includes a first inflatable/contractible bag that is inflatable and contractible through supplying or exhausting of gas
Data Source
AI summary
A mattress 100 includes a movable part 1 and a mattress body 2 including a first mattress part 21 disposed above the movable part 1, and a second mattress part 22 provided separately from the first mattress part 21 and disposed to surround the first mattress part in a plan view. The first mattress part 21 is configured to rotate upward about the predetermined rotation axis by the movable part 1.