Base and assembled sofa
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing seating device bases, such as those for chairs, sofas, and beds, suffer from low firmness and stability during assembly, leading to looseness and separation issues.
Innovation Solution
A base structure with positioning units, guiding pathways, locking units, and self-locking structures that facilitate tool-free assembly and enhance stability by ensuring precise alignment and secure connection of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional connection methods (installation fasteners and grooves) are used to assemble the base, then assembly is facilitated, but firmness and stability are relatively low, resulting in looseness and separation
Solution Approach 1:
The connector assembly uses self-aligning positioning protrusions and positioning grooves that automatically guide the connection components into proper alignment during assembly, eliminating the need for external alignment tools or complex adjustment procedures. The elastic locking pieces automatically engage with the positioning grooves to secure the connection
Solution Approach 2:
The positioning protrusions and positioning grooves are pre-formed on the connection components before assembly takes place. The guiding pathways are also pre-configured to guide the positioning protrusions into the positioning grooves, ensuring proper alignment is achieved automatically during the assembly process without requiring additional alignment steps
2Ease of operation
If the base structure is designed for easy assembly, then assembly convenience is improved, but assembly precision and alignment may be compromised
Solution Approach 1:
The invention replaces traditional mechanical alignment methods (such as manual measurement and adjustment) with a geometric constraint system consisting of positioning protrusions, positioning grooves, and guiding pathways. These geometric features passively enforce precise alignment through their physical geometry, ensuring high assembly precision while maintaining simplicity
Solution Approach 2:
The positioning protrusions and positioning grooves act as intermediary elements between the connection components. These intermediaries transfer and constrain the relative position and orientation of the connected components, ensuring precise alignment is achieved automatically during assembly without requiring direct manual intervention
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 base and assembly sofa provide firm and stable assembly without tools, preventing looseness and separation, while allowing for easy disassembly and reduced packaging volume.
Implementation Method 1
elastic units which are arranged in a retraction direction of the locking units and have an elastic compression amount are arranged on the supporting base portions, and the elastic units support the abutting-against structures or the extension bodies to make the abutting-against structures kept in a state of making contact with the assembly bottom surfaces
Data Source
Figure 1
Figure 2
Figure 3
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.