Base and assembly sofa
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Solution Overview
Problem
Existing seating device and bed bases lack sufficient firmness and stability during assembly, often leading to looseness and separation issues due to human factors or aging of parts.
Innovation Solution
The base and assembly sofa design incorporates front seat and side seat connectors with positioning units, guiding pathways, and self-locking structures to ensure stable assembly without tools, featuring a combination of linear and circuitous pathways, curbs, and elastic units for secure connection and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional connectors with installation fasteners and grooves are used, then assembly is facilitated, but firmness and stability are relatively low, resulting in looseness and separation
Solution Approach 1:
The connector is divided into multiple functional components: positioning units with positioning pathways for alignment, locking units with locking pathways for secure connection, and sealing units. This segmentation allows each component to perform its specific function optimally, ensuring both easy assembly and high stability.
Solution Approach 2:
Positioning units are provided with positioning pathways that guide the assembly process before the locking units engage. The positioning pathways pre-align the connectors, ensuring accurate placement before the locking mechanism secures the connection, preventing looseness and separation.
Solution Approach 3:
The locking units automatically engage and lock the connectors together through the locking pathways without requiring additional fasteners or tools. The elastic units provide self-adjusting force to maintain the locked state, ensuring firmness and stability while facilitating easy assembly.
2Reliability
If connectors are designed with multiple pathways and locking units, then firmness and stability are improved, but assembly complexity increases
Solution Approach 1:
Multiple functional units (positioning, locking, sealing) are integrated into a single connector component. The positioning units, locking units, and sealing units work together within one connector structure, reducing the number of separate parts and simplifying the assembly process while maintaining high firmness and stability.
Solution Approach 2:
The connector is designed as a multi-functional component that performs positioning, locking, and sealing functions simultaneously. This universal design reduces the need for multiple separate components and fasteners, simplifying the overall structure while ensuring reliable and stable connections.
3Reliability
If elastic units are added to the locking mechanism, then assembly stability is enhanced, but manufacturing complexity increases
Solution Approach 1:
The elastic units change their physical parameters (elastic force) in response to assembly conditions. During assembly, the elastic units compress and then rebound to provide locking force, automatically adapting to the assembly process without requiring complex control mechanisms, thus enhancing stability while maintaining ease of manufacture.
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 stable and firm assembly mode that prevents looseness, allows tool-free assembly, and enables rapid assembly, while also reducing packaging space for cost-effective transportation.
Implementation Method 1
locking units which have preset shapes and can retract after being extruded are arranged on the assembly base surfaces
Implementation Method 2
locking units which have preset shapes and can retract after being extruded
Implementation Method 3
positioning units are arranged on the assembly base surfaces; first guiding pathways and second guiding pathways for guiding the positioning units to reach the positioning cutoffs
Implementation Method 4
firmness and stability are relatively low, easily resulting in looseness and even separation
Data Source
AI summary
The present disclosure discloses a base, including a front seat, front seat connectors arranged at left and right ends of the front seat, two side seats with a preset interval, and side seat front connectors arranged on the side seats and suitable for being connected to the front seat connectors; each side seat front connector is provided with an assembly base surface; positioning units are arranged on the assembly base surfaces; each front seat connector is provided with an assembly fitting surface making contact with the corresponding assembly base surface; positioning cutoffs for limiting final assembly positions of the front seat connectors on the side seat front connectors are arranged on the assembly fitting surfaces; and first guiding pathways and second guiding pathways for guiding the positioning units to reach the positioning cutoffs in a first assembly direction and a second assembly direction are arranged on the assembly fitting surfaces. The present disclosure further discloses an assembly sofa with the base. The present disclosure has the beneficial effects of being convenient to assemble and highly firm and stable after being assembled.