Convertible sofa
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Solution Overview
Problem
Upholstered furniture combinations designed as corner pieces are typically tailored for specific corners and cannot be easily converted between left and right corner configurations, especially when featuring an ottoman seat part, limiting adaptability to different living spaces.
Innovation Solution
The design includes a first and second base frame arranged at an angle, with interchangeable side rests and ottoman seat parts, allowing for conversion between left and right corner configurations without tools, using identical connecting means for easy exchange and enhancing stability by fixing certain components to the base frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If corner units are designed as custom left- or right-hand configurations, then optimal integration into specific corners is achieved, but adaptability to different living spaces and frequent moves is reduced
Solution Approach 1:
The patent applies universality by designing a corner unit with interchangeable base frames that can function as either left-hand or right-hand configurations. The first base frame and second base frame can be swapped between positions, allowing the same furniture piece to adapt to different corner orientations and living space arrangements without requiring custom designs for each configuration.
Solution Approach 2:
The corner unit is segmented into separate interchangeable base frames (first base frame and second base frame) that can be independently positioned. This segmentation allows the furniture to be reconfigured by swapping the base frames between left and right positions, providing adaptability without requiring complete redesign of the entire corner unit.
2Adaptability or versatility
If ottoman with wide side arm is used on left or right side, then seating comfort is improved, but the basic frame cannot be used in any other way for corner configuration
Solution Approach 1:
The ottoman base frame is designed with universal functionality to serve multiple purposes. It can be positioned on either the left or right side of the corner unit and still function as an ottoman with wide side arm. The interchangeable base frame design allows the same ottoman component to adapt to different positions without requiring separate left-handed and right-handed versions.
3Adaptability or versatility
If furniture is designed for frequent moves and changing living spaces, then mobility adaptability is improved, but structural stability and custom optimization for specific corners is reduced
Solution Approach 1:
The furniture is segmented into modular components including interchangeable base frames, side arms, and seating elements. This modular segmentation allows easy reconfiguration and movement to different living spaces while maintaining structural integrity through standardized connection points and robust joint designs that ensure stability in each new configuration.
Data Source
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AI summary
The invention relates to an upholstered furniture combination (10) comprising a first base frame (20) having a longitudinal extension (L1) and at least a first side armrest (22), a first backrest (23), and a first seat section (21) that can be fixed to the base frame (20), and a second base frame (40) having a longitudinal extension (L2) and at least a second side armrest (42), a second backrest (43), and a second seat section (41) that can be fixed to the base frame (40), wherein the two base frames (20, 40) are arranged transversely to each other with their longitudinal extensions (L1, L2), and the first side armrest (22) can be attached to a first head end (20.3) of the first base frame (20) by a first connecting means (13), and the second base frame (40) can be attached to a second head end by a second connecting means (13). (20.4) can be attached to the first base frame (20).According to the invention, the first side backrest (22) is interchangeable with the second base frame (40), so that the first side backrest (22) can be attached to the second head end (20.4) of the first base frame (20) and the second base frame (40) can be attached to the first head end (20.3) of the first base frame (20).