Systems and methods for a rollaway folding bed
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Solution Overview
Problem
Folding beds are prone to movement during use due to ineffective wheels, leading to potential injury, and are unstable and uncomfortable due to rigid support structures.
Innovation Solution
A rollaway folding bed system with a rigid frame, lockable wheels positioned beyond the outer edge for stability, and a support grid with rods spaced to provide comfort and prevent mattress movement, along with retention bars and non-slip pads for enhanced safety and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wheels are added to allow easy movement of the folding bed, then ease of operation is improved, but the bed becomes unstable and prone to inadvertent movement during use
Solution Approach 1:
The wheel assembly incorporates a movable wheel support that can transition between extended and retracted positions. When extended, the wheels provide mobility; when retracted, they minimize interference with bed stability. The support itself acts as a dynamic stabilizing element that adjusts with the bed's position.
Solution Approach 2:
The system changes the effective wheelbase width parameter dynamically. In stored/transport position, the wheels extend beyond the frame edges to maximize stability. In deployed use position, the wheel supports retract to reduce the footprint and prevent inadvertent movement while maintaining controlled stability.
2Ease of operation
If wheels are aligned along the outside edge of the folding bed for compact storage, then ease of operation is improved, but the wheelbase becomes narrow causing instability and increased likelihood of tipping
Solution Approach 1:
The wheel supports extend perpendicular to the main frame plane, creating a third dimension of stability. This allows the wheels to be positioned beyond the edge of the frame in the lateral dimension while maintaining compact longitudinal storage, effectively widening the wheelbase without increasing the bed's footprint.
Solution Approach 2:
The wheel support structure is dynamic, able to extend beyond the frame edges when needed for stability and retract when compact storage is required. This dynamic adjustment allows the system to optimize between stability and compactness based on operational requirements.
3Strength
If bars or support beams are aligned with the user's shoulders, back, or hips to provide structural support, then strength is improved, but comfort deteriorates due to pressure points
Solution Approach 1:
The support structure is segmented into multiple vertical supports distributed across the frame rather than continuous bars. This segmentation creates smaller contact points that can be strategically positioned to avoid major body pressure zones while maintaining overall structural integrity through the distributed support system.
Solution Approach 2:
The vertical supports are strategically positioned in locations that provide structural strength while avoiding alignment with user's shoulders, back, or hips. Each local support point is optimized for its specific function - providing structural integrity where needed while creating comfortable spacing over sensitive body areas.
4Strength
If a support grid is made in a tight square pattern to provide rigid support, then strength is improved, but comfort deteriorates due to excessive rigidity
Solution Approach 1:
The support grid parameters are optimized to balance rigidity and comfort. The grid pattern and spacing are designed to provide sufficient structural support while maintaining flexibility for user comfort. The vertical supports work in conjunction with the grid to distribute loads effectively without creating excessive rigidity.
Data Source
AI summary
Systems and methods for use of a rollaway folding bed system are described. The rollaway folding bed system can include a mattress and a frame configured to be moveable between a deployed state and a stored state. The rollaway folding bed can include a rigid frame and sections of support grid affixed to the bars to provide support to the mattress. The rigid frame can also have moveable supports that can moved between a folded position and a stored position. The rigid frame can include central supports having hinges to facilitate moving the rollaway folding bed from a stored position and a deployed position. The crossbars can include lockable wheels affixed at opposing ends of the cross bars and positioned beyond an outer edge of the rollaway folding bed system when in a stored position to provide stability to the rollaway folding bed system.