Convertible Furniture Frame With Compact Biasing and Locking
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Solution Overview
Problem
Existing convertible furniture frames, such as sofa beds and futons, are often cumbersome, expensive, and lack aesthetic appeal, with complex and heavy support mechanisms that make them difficult to convert between seated and horizontal configurations safely and efficiently.
Innovation Solution
A convertible furniture frame assembly with a base frame, cushion support assembly, and compact biasing assembly that allows for easy transition between upright seated and extended horizontal configurations, featuring a lightweight metal frame, movable cushion supports, and a simplified locking mechanism for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heavily spring-laden mattress support mechanism is used in sofa beds, then the support and comfort are improved, but the weight and complexity increase making it clumsy and dangerous for users to move and operate
Solution Approach 1:
The patent removes the heavy spring-laden mattress support mechanism from the sofa bed design. Instead, it uses a simplified frame structure where the mattress rests directly on a basic support frame, eliminating the complex spring mechanism while maintaining essential support functionality.
Solution Approach 2:
The patent employs a simpler, more replaceable frame structure rather than a permanent, heavy-duty spring mechanism. The frame is designed to be lightweight and potentially replaceable, trading the durability of heavy springs for ease of manipulation and lower cost.
2Reliability
If a heavily spring-laden mattress support mechanism is used in sofa beds, then the support and comfort are improved, but the weight increases making it difficult for users to move and operate
Solution Approach 1:
The patent removes the heavy spring-laden mattress support mechanism from the sofa bed design. Instead, it uses a simplified frame structure where the mattress rests directly on a basic support frame, eliminating the complex spring mechanism while maintaining essential support functionality.
Solution Approach 2:
The patent employs a simpler, more replaceable frame structure rather than a permanent, heavy-duty spring mechanism. The frame is designed to be lightweight and potentially replaceable, trading the durability of heavy springs for ease of manipulation and lower cost.
3Reliability
If a complex mattress support mechanism is used in sofa beds, then the support structure is improved, but the manufacturing cost increases
Solution Approach 1:
The patent removes the heavy spring-laden mattress support mechanism from the sofa bed design. Instead, it uses a simplified frame structure where the mattress rests directly on a basic support frame, eliminating the complex spring mechanism while maintaining essential support functionality.
Solution Approach 2:
The patent employs a simpler, more replaceable frame structure rather than a permanent, heavy-duty spring mechanism. The frame is designed to be lightweight and potentially replaceable, trading the durability of heavy springs for ease of manipulation and lower cost.
4Device complexity
If a simple futon frame is used, then the structure is simplified and cost is reduced, but the aesthetic appeal and support quality deteriorate
Solution Approach 1:
The patent designs a frame that serves multiple functions: it provides structural support, enables conversion between seating and sleeping configurations, and contributes to aesthetic appeal through its clean lines and simple geometry. The frame is not merely functional but also serves as a design element.
Solution Approach 2:
The patent incorporates a convertible frame design that can dynamically change between different configurations (seating and sleeping). The frame includes movable components that allow smooth transition between states, maintaining both functionality and aesthetic appeal throughout the transformation.
5Device complexity
If a simple futon frame is used, then the structure is simplified and cost is reduced, but the support quality deteriorates
Solution Approach 1:
The patent designs a frame that serves multiple functions: it provides structural support, enables conversion between seating and sleeping configurations, and contributes to aesthetic appeal through its clean lines and simple geometry. The frame is not merely functional but also serves as a design element.
Solution Approach 2:
The patent incorporates a convertible frame design that can dynamically change between different configurations (seating and sleeping). The frame includes movable components that allow smooth transition between states, maintaining both functionality and aesthetic appeal throughout the transformation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a stylish, safe, and efficient conversion between seating and sleeping modes, reducing the complexity and weight of the support structure while maintaining aesthetic appeal and simplifying the conversion process.
Implementation Method 1
a biasing assembly which is interconnected between the base frame assembly and the cushion support assembly and which facilitates disposition of the cushion support assembly between a seated configuration and a horizontal configuration
Data Source
AI summary
A convertible furniture frame assembly includes a base frame assembly having one or more support members attached to the base frame assembly which are disposed to maintain the convertible furniture frame assembly in an operative position, such as, relative to an underlying floor surface. A cushion support assembly is interconnected to the base frame assembly and is disposable between an upright seated configuration and an extended horizontal configuration. A biasing assembly having a simple and compact construction is interconnected between the base frame assembly and the cushion support assembly to facilitate disposition of the cushion support assembly between the upright seated configuration and the extended horizontal configuration.