Sofa support structure and sofa thereof
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Solution Overview
Problem
Existing sofa support structures are complex and lack stability due to their intricate designs, which complicate the adjustment process and affect the overall stability of the sofa.
Innovation Solution
A simplified sofa support structure incorporating a footrest link set, lumbar support set, and transmission rod set, where the transmission rod drives the lumbar support set to fold and unfold, simplifying the adjustment process and enhancing stability by allowing the lumbar support to be adjusted using a single transmission rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional inner sofa bracket structure is used, then the sofa can be adjusted, but the structure becomes complicated and stability deteriorates
Solution Approach 1:
The support structure is divided into independent functional modules: footrest link set, lumbar support set, and transmission rod set. Each module performs a specific function and can be adjusted independently, reducing overall structural complexity while maintaining adjustability.
Solution Approach 2:
The transmission rod set serves multiple functions: it drives the lumbar support set to extend and retract, and simultaneously controls the footrest link set movement. This multi-functionality reduces the number of separate components needed, simplifying the overall structure.
2Adaptability or versatility
If a traditional inner sofa bracket structure with many elements is used, then adjustment functionality is achieved, but stability becomes poor
Solution Approach 1:
The transmission rod set integrates the control mechanisms for both the lumbar support set and footrest link set into a single unified component. This merging reduces the number of separate elements and connection points, thereby improving structural stability while maintaining full adjustment functionality.
Solution Approach 2:
The transmission rod acts as an intermediary mechanism that efficiently transmits driving force from the motor to both the lumbar support set and footrest link set. This intermediary approach provides stable and reliable force transmission with minimal structural complexity.
3Ease of manufacture
If multiple connecting components and rivets are used as in prior art, then parts can be connected, but the device complexity increases
Solution Approach 1:
The patent removes unnecessary intermediate connection components and rivets from the traditional structure. The transmission rod set directly connects to both the lumbar support set and footrest link set, eliminating redundant connection elements and simplifying the manufacturing process.
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 simplifies the adjustment process and improves stability by enabling the sofa to be easily transitioned between folded and unfolded states, enhancing user comfort and structural support.
Implementation Method 1
The transmission rod set is a transmission rod. A first end of the transmission rod is rotatably connected to the lumbar support set and a second end of the transmission rod is pivotally connected to the footrest link set.
Implementation Method 2
The first link assembly is pivotally connected to the transmission rod and the cushion bracket, respectively. The second link assembly is pivotally connected to the cushion bracket and the lumbar bracket, respectively.
Data Source
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AI summary
A sofa support structure (100) includes a footrest link set (10), a lumbar support set (20), a transmission rod set and a cushion bracket (40). The footrest link set (10), the lumbar support set (20) and the transmission rod set are disposed on the cushion bracket (40). The transmission rod set is configured for driving the lumbar support set (20) to be gathered and extended. The transmission rod set is a transmission rod (30), a first end of the transmission rod (30) is rotatably connected to the lumbar support set (20), and a second end of the transmission rod (30) is pivotally connected to the footrest link set (10). the lumbar support set can be driven to rotate and unfolded only by the single transmission rod, which effectively simplifies a driving process of the lumbar support set and the structure of the sofa support structure and resulting in it has better stability.