Modular Sofa with Rotatable Arms for Adjustable Seat Support and Slope
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Solution Overview
Problem
Current furniture lacks versatility, ease of assembly, quality, and adaptability to user needs, particularly in modular designs like sofas and chairs, which often compromise on adjustability and durability.
Innovation Solution
A modular furniture design featuring a base with longitudinal and transversal structures, rotatable arms, and adjustable poles that allow for varying support and slope configurations, along with mounting brackets and braces for secure cushion placement, enabling customizable firmness and slope adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If furniture is designed with fixed structures, then manufacturing is simple, but versatility and adaptability to user needs deteriorate
Solution Approach 1:
The furniture is divided into modular components including separate armrests, seat cushions, and frame sections that can be independently assembled and configured. Each module can be manufactured separately and then combined in various arrangements to create different furniture configurations, thereby achieving versatility without requiring complex monolithic structures.
Solution Approach 2:
The armrests are designed with rotatable joints allowing them to move between multiple positions (horizontal, vertical, angled). This dynamic capability enables the same basic structure to adapt to different user preferences and usage scenarios, providing versatility through motion rather than through multiple fixed structural variants.
2Ease of manufacture
If furniture structures are simplified for ease of assembly, then ease of assembly improves, but durability and quality deteriorate
Solution Approach 1:
By segmenting the furniture into standardized modules with uniform connection interfaces, the design enables simple assembly procedures while maintaining structural integrity. Each module can be pre-manufactured with high quality control, and the standardized connections ensure reliable joining without requiring complex assembly operations.
Solution Approach 2:
Multiple structural functions are merged into integrated components. For example, the armrest assemblies combine support functions, adjustment mechanisms, and connection points into unified structures that are both easy to attach and provide durable, multi-functional performance.
3Adaptability or versatility
If armrests are made fixed in position, then structural stability improves, but adjustability and user comfort deteriorate
Solution Approach 1:
The armrests incorporate rotatable joints that allow controlled movement between defined positions while maintaining stability in each position. The mechanical joint design provides inherent stability when locked in place while enabling easy adjustment between positions, thus achieving both adjustability and structural stability.
Solution Approach 2:
The armrest position is adjusted by changing the angular parameter of the rotatable joint. This allows continuous or discrete adjustment of the armrest angle and position to match user preferences, while the joint mechanism ensures stable positioning once adjusted, resolving the contradiction between adjustability and stability.
Data Source
AI summary
Here is described a piece of furniture, and particularly a sofa, that comprises a base and a seat cushion. The base comprises longitudinal structures; a pair of transversal structures mounted to the longitudinal structures; arms rotatively mounted to the transversal structures; and poles mounted to the arms. The seat cushion is adapted to be laid over the base. The poles are movable between positions providing therethrough one of: an adjustable support for the seat cushion; and an adjustable slope for the seat cushion. The sofa may further comprise mounting brackets mounted inwardly to the frame, each one comprising a mounting rod. Cushions of the sofa comprise a cushion body; and a pair of mounting braces extending from the cushion body and comprising a slit in which the rod is positioned as the cushion is rotated around the rod until the cushion stands in place.