Bed-Sofa Sliding Floor Plate Design to Reduce Structural Complexity
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Solution Overview
Problem
Conventional bed-sofa structures are complex due to movable parts like pinion gears and rack gears, leading to increased costs, part count, and space challenges for storing components.
Innovation Solution
A bed-sofa design featuring a slide floor plate that moves between two positions, allowing the mattress to be placed on it and creating a storage space under a horizontal stand for cushions, simplifying the structure and reducing the number of parts and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If side plates of the cabinet are made movable to enable bed-sofa switching, then the bed can be transformed into a sofa and backrest can be stored, but the structure becomes complicated with increased parts and costs
Solution Approach 1:
The patent extracts the movable side plates from the cabinet structure, making them separable components rather than integrated parts. This allows the cabinet to remain simple and stationary while the side plates provide the transformation functionality through their own mobility, thus reducing overall structural complexity while maintaining bed-sofa switching capability
Solution Approach 2:
The patent divides the cabinet into separate functional components: a stationary main body and movable side plates. This segmentation allows each component to have a simple, optimized structure for its specific function, avoiding the need for a complex integrated structure that would be required if all parts were combined into a single movable unit
2Adaptability or versatility
If side plates are made movable with sliding and rotating mechanisms, then bed-sofa transformation is enabled, but the number of parts and costs increase
Solution Approach 1:
The patent combines multiple functions into the side plates themselves - they provide structural support, enable transformation through their own sliding and rotating capabilities, and serve as storage surfaces for the backrest. This consolidation reduces the need for separate mechanisms and components that would otherwise be required to achieve the same functionality
3Adaptability or versatility
If cabinet structure is made complicated with movable parts, then bed-sofa switching is enabled, but space for storing backrest becomes limited
Solution Approach 1:
The patent makes the side plates dynamically movable rather than fixed, allowing them to slide and rotate to create additional storage space for the backrest when needed. This dynamic capability provides flexible storage accommodation without requiring a permanently enlarged cabinet structure
4Adaptability or versatility
If cabinet structure is made complicated, then bed-sofa transformation is enabled, but the size of the cabinet increases
Solution Approach 1:
The patent extracts the transformation mechanism from the main cabinet body and places it in the separable side plates. This allows the cabinet to maintain a compact, simple size while the side plates provide the transformation functionality, preventing the cabinet itself from needing to be larger to accommodate complex internal mechanisms
Data Source
AI summary
A furniture item includes a body including first side plates in a first direction, a second side plate on a first side in a second direction, and a horizontal stand that forms a horizontal surface extending from the second side plate; a floor plate part that is enabled to slide between a first position and a second position that is on the second side relative to the first position; a mattress part that is enabled to be placed on the floor plate part; and a cushion element that is enabled to be placed on the mattress part. An upper side surface of the mattress part extends at a height lower than a lower end of the horizontal stand, and a space is formed under a horizontal surface of the horizontal stand in a state in which the floor plate part is at the second position.