Multi-purpose, multi-utility, and re-organizable recliner chair bed
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Solution Overview
Problem
Existing recliner chairs and wheelchairs fail to convert into flat beds, lack adjustable backrests, and are cumbersome for bedridden individuals, making it difficult to maintain hygiene and mobility, especially for elderly and disabled people.
Innovation Solution
A multi-purpose recliner chair bed with a first frame and a second frame that can telescope, allowing independent movement of the backrest and leg rest, equipped with mechanisms for mechanical or electrical adjustment, enabling conversion into a bed, tiltable seat, and easy mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a recliner chair is designed with linkages to support the backrest, then the chair can be adjusted to reclined positions, but the chair cannot convert into a flat bed and may tilt backwards in fully reclined position
Solution Approach 1:
The backrest support system is divided into multiple independent components: a first linkage mechanism for adjusting the backrest angle, and a second linkage mechanism for supporting the leg rest. This segmentation allows independent optimization of each mechanism's function, enabling the backrest to achieve full flatbed alignment while maintaining stability through dedicated support structures.
Solution Approach 2:
The linkage mechanisms are designed with dynamic adjustment capabilities, allowing the backrest and leg rest to move through multiple positions. The first linkage mechanism enables the backrest to transition from upright to fully horizontal positions, while the second linkage mechanism independently adjusts the leg rest angle, providing dynamic adaptability for both seating and sleeping configurations.
2Stability of the object's composition
If a wheelchair is designed with interconnected frames to support back and legs, then structural stability is improved, but the frames cannot move independently preventing adjustment to desired positions for comfort
Solution Approach 1:
The frame structure is segmented into a first frame supporting the backrest and a second frame supporting the leg rest, connected through independent linkage mechanisms. This segmentation allows each frame to move independently while maintaining overall structural stability, enabling separate adjustment of backrest and leg rest angles to achieve desired comfortable positions.
3Strength
If a recliner chair is designed with fixed structure for stability, then structural integrity is maintained, but the chair cannot be easily moved onto commodes or adjusted to any desired position
Solution Approach 1:
The recliner chair incorporates dynamic linkage mechanisms that allow the backrest and leg rest to adjust to any desired angle within their ranges. The first linkage mechanism enables continuous adjustment of the backrest from upright to fully horizontal positions, while the second linkage mechanism independently adjusts the leg rest angle, providing versatile position adaptation while maintaining structural integrity through robust linkage design.
4Ease of manufacture
If wheelchairs are designed without adjustable backrests to simplify structure, then manufacturing complexity is reduced, but bedridden persons cannot sit for extended time comfortably
Solution Approach 1:
The wheelchair design incorporates a segmented backrest support system with a first linkage mechanism that enables independent adjustment of the backrest angle. This segmentation adds minimal manufacturing complexity while providing essential comfort adjustment capability, allowing bedridden persons to sit for extended periods at comfortable angles.
Data Source
AI summary
A recliner chair bed includes a first frame, a second frame, a backrest, and a leg rest. The first frame has front and rear ends. The second frame fits comfortably and moves telescopically inside and outside of the first frame. The leg rest is attached to the front end of the first frame. The backrest is attached to the rear end of the first frame. The independent movement of the back and leg rests helps in achieving desired position for comfort. The recliner chair bed provides stability, can be moved on to any fixtures such as furniture and toilet and also can be converted into a bed.