Transportable Sofa with Folding Backrest for Compact Shipping
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Solution Overview
Problem
Transporting seating apparatus presents a challenge as smaller units offer limited comfort and functionality, while larger units are difficult to transport due to their size.
Innovation Solution
A transportable sofa design featuring a seating unit with a base and back connected by hinges that allow for folding and unfolding, providing structural support and ease of assembly, while fitting within shipping restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the seating apparatus is made larger to provide more comfortable and expansive seating, then the seating capability and comfort are improved, but the difficulty of transportation increases
Solution Approach 1:
The sofa is divided into separate modular components including a base, backrest, armrests, and legs that can be disassembled and transported independently. This segmentation allows a large seating apparatus to be broken into smaller, more transportable units while maintaining the capability to assemble into a comfortable multi-person sofa.
Solution Approach 2:
The sofa incorporates movable components such as the backrest that can pivot and adjust between different positions. The dynamic design allows the backrest to fold flat against the base for compact storage and transport, then unfold and lock into an upright position for comfortable seating, resolving the contradiction between size and transportability.
2Ease of operation
If the seating apparatus is made smaller to be easy to transport, then the transportation ease is improved, but the seating capability and comfort are reduced
Solution Approach 1:
The sofa components are designed to nest within each other when disassembled, with the backrest folding flat to rest against the base, and armrests and legs fitting into compact configurations. This nesting approach maximizes space efficiency during transport while allowing full expansion into a comfortable seating apparatus when assembled.
Solution Approach 2:
The sofa utilizes vertical space and three-dimensional configuration to provide expansive seating capability. When assembled, the backrest rises vertically and the overall structure expands in multiple dimensions to create a comfortable multi-person sofa, while the same structure can be collapsed into a compact form for transport.
3Strength
If the back is made rigid to provide structural support in the upright position, then the structural integrity is improved, but the ability to fold and transport is reduced
Solution Approach 1:
The backrest employs a dynamic hinge mechanism that allows it to pivot between a folded position (lying flat against the base) and an upright seated position. This dynamic connection provides structural support when upright while enabling easy folding for transport, resolving the contradiction between rigidity and flexibility.
Solution Approach 2:
The hinge mechanism incorporates built-in support and stabilization features that automatically engage when the backrest is in the upright position, providing structural support beforehand. This allows the backrest to be flexible during folding while ensuring structural integrity is maintained when in use.
Data Source
AI summary
Systems and methods for a transportable sofa are provided. The sofa may include a seating unit that comprises a base, a back, a first set of hinges, and a second set of hinges. The sofa may be configured such that in a folded position the back lies in a substantially flat position, and the back unfolds to an unfolded position by swinging the top edge of the back upward and pivoting the back into a substantially upright position. The second set of hinges may include a left side hinge and a right side hinge that may be configured to fold at pivot points when the back is in the folded position, unfold at the pivot points when the back is in the unfolded position, and secure the back in the substantially upright position and prevent the back from pivoting further backwards. The sofa may also include a right armrest unit, a left armrest unit, a set of cushions, and a plurality of legs.