Connecting structure for elastic units of sofa bed, elastic layer, and sofa bed
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Solution Overview
Problem
Existing sofa beds face issues with unstable transitions between sofa and bed configurations, shifting cushions, inadequate base support, complex folding mechanisms, and unsound spring module installation, making them difficult to use and assemble.
Innovation Solution
A connecting structure for elastic units in a sofa bed, featuring fixing members and interlocking mechanisms that secure the elastic units to a bed board, allowing easy assembly and disassembly, and ensuring stability during transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional sofa beds use simple folding mechanisms, then the device complexity is reduced, but the stability and smoothness of transitions between sofa and bed configurations deteriorates
Solution Approach 1:
The sofa bed structure is divided into multiple independent modules including seat module, backrest module, and bed module, each with its own support and connection mechanisms. This segmentation allows each module to be optimized independently for stability while maintaining overall system manageability and reducing complex inter-module interactions during transitions.
Solution Approach 2:
The patent implements dynamic adjustment mechanisms that allow the sofa bed to transition smoothly between configurations. The folding mechanisms incorporate dampers and controlled movement features that ensure stable transitions while adapting to different user needs and positions, making the system both manageable and stable.
2Ease of operation
If cushions and elastic layers are loosely attached, then the ease of operation and adjustment is improved, but the stability and position retention during use deteriorates
Solution Approach 1:
Cushions and elastic layers are divided into modular sections that can be independently adjusted and repositioned. Each module can be easily detached and reattached, providing both ease of operation for user adjustment and stable positioning when in place through dedicated attachment points.
Solution Approach 2:
The cushions and elastic layers are pre-positioned and pre-adjusted to optimal positions during assembly, with quick-release mechanisms that allow users to make adjustments without complex operations. The preliminary proper positioning ensures stability during use while maintaining ease of adjustment when needed.
3Device complexity
If the base support structure is simplified, then the device complexity is reduced, but the ability to support both sofa-configuration frame and bed-configuration frame deteriorates
Solution Approach 1:
The base support structure is designed as a universal platform that can support both sofa and bed configurations through adjustable support points and modular components. The same base structure adapts to different configurations without requiring separate support systems, reducing overall complexity while maintaining dual configuration capability.
Solution Approach 2:
The base support structure incorporates dynamic adjustment features that allow it to adapt its configuration and support characteristics based on whether the sofa bed is in sofa mode or bed mode. This dynamic adaptability enables a single simplified structure to provide adequate support for both configurations.
4Stability of the object's composition
If elastic units are permanently fixed to the bed board, then the stability of the elastic layer is improved, but the ease of replacement and maintenance deteriorates
Solution Approach 1:
The elastic units are divided into individual replaceable modules that are separately attachable to the bed board. Each elastic unit can be independently removed and replaced without affecting others, maintaining layer stability when assembled while enabling easy replacement and maintenance through modular design.
Solution Approach 2:
The elastic units are pre-assembled into stable configurations during manufacturing, and quick-attachment mechanisms are pre-installed on the bed board. This preliminary preparation ensures stable operation during use while allowing rapid replacement when maintenance is needed, without requiring complex disassembly procedures.
Data Source
AI summary
A connecting structure for a plurality of elastic units of a sofa bed is provided. The sofa bed includes a bed frame, and the bed frame is configured be alternatively changed between a flat state and a backrest state. The bed frame is disposed with a bed board on which the plurality of elastic units are configured to be disposed. A surface of the bed board is disposed with a plurality of fixing members spaced apart from each other and configured to be connected to the plurality of elastic units, and a bottom of at least one of the plurality of elastic units includes a fixing fitting member configured to be matched with a corresponding one of the plurality of fixing members. The fixing fitting member and the corresponding one of the plurality of fixing members form a detachable connection relationship.