Rotating Transfer Seat Cushion for Safe Bathroom Repositioning
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Solution Overview
Problem
Caregivers face difficulties and safety concerns when moving disabled individuals in wet and slippery bathroom environments, as existing auxiliary chairs are cumbersome and hazardous for both caregivers and users.
Innovation Solution
An auxiliary moving device with a first cushion and a second cushion, where the second cushion is mounted on the first cushion using a rotating mechanism and a positioning mechanism, allowing the second cushion to rotate and be fixed relative to the first cushion, facilitating easy movement and positioning for daily activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional auxiliary chair is used to move a disabled person in a wet and slippery environment, then the disabled person can be transported, but the caregiver faces safety risks and high energy consumption
Solution Approach 1:
The patent applies the dynamics principle by introducing a rotating mechanism that allows the second cushion (with the disabled person) to rotate relative to the first cushion. This dynamic capability enables the caregiver to easily reposition the disabled person by rotating the cushion rather than manually lifting or dragging them, significantly reducing energy consumption while maintaining safety in wet environments
Solution Approach 2:
The rotating mechanism acts as an intermediary between the caregiver and the disabled person. Instead of direct manual handling which is energy-consuming and unsafe on slippery surfaces, the caregiver operates the rotating mechanism to achieve positioning, thereby reducing direct physical contact and energy expenditure while improving safety
2Ease of operation
If the second cushion is mounted on the first cushion with a rotating mechanism, then the disabled person can rotate easily, but the structural complexity of the device increases
Solution Approach 1:
The patent segments the seating system into two independent cushions: a first cushion (base) and a second cushion (movable). The rotating mechanism is specifically retained between these two segmented components, allowing rotation functionality to be isolated to a specific module. This segmentation makes the complex rotating mechanism easier to manufacture, maintain, and operate independently
3Stability of the object's composition
If a positioning mechanism is added to fix the second cushion on the first cushion, then the disabled person can be securely positioned, but the device complexity increases
Solution Approach 1:
The positioning mechanism is designed with dynamic characteristics, allowing it to be engaged or disengaged as needed. The positioning components can be easily activated to secure the second cushion during transport or rotation, and released when adjustment is needed. This dynamic positioning capability provides stability when required while maintaining operational flexibility without excessive complexity
Data Source
AI summary
An auxiliary moving device contains a first cushion and a second cushion mounted on the first cushion. A rotating mechanism is retained between the first and second cushions, with the first cushion used to hold the second cushion by using the rotating mechanism. The second cushion rotates relative to the first cushion by ways of the rotating mechanism. A positioning mechanism is connected with the first and the second cushions, and second cushion is fixed on the first cushion by using the positioning mechanism.