Flexible Tongue Locking for Easy Panel Disassembly
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Solution Overview
Problem
Existing mechanical locking systems for furniture components, particularly those with flexible tongues, require precise alignment and insertion of a rod-shaped tool for disassembly, making the process cumbersome and prone to errors.
Innovation Solution
A mechanical locking system featuring a flexible tongue with a guiding protrusion that automatically guides a rod-shaped tool into the tongue groove, allowing for easy and precise disassembly without requiring precise orientation, by utilizing a curved or tapered shape that facilitates the tool's insertion and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rod-shaped stick is used to disassemble the locking system by inserting it into the tongue groove, then the locking system can be disassembled, but the user must turn the stick in a correct position and insert it precisely, making the disassembly process complex and error-prone
Solution Approach 1:
The tongue groove is designed with a guiding protrusion that automatically guides the rod-shaped tool into the correct position during insertion. This self-guiding mechanism eliminates the need for precise manual alignment by the user, allowing the tool to find its own insertion path and position through the geometric design of the groove and protrusion.
Solution Approach 2:
The guiding protrusion acts as an intermediary element between the rod-shaped tool and the tongue groove. It mediates the interaction by providing a physical guide that directs the tool along the correct trajectory, simplifying the user's task while maintaining the integrity of the locking system's disassembly function.
2Reliability
If the rod-shaped stick is inserted into the insertion groove instead of the tongue groove, then the locking system cannot be disassembled, highlighting the precision requirement but also the risk of user error
Solution Approach 1:
The tongue groove and insertion groove are designed with asymmetric characteristics. The tongue groove contains a guiding protrusion that facilitates tool insertion, while the insertion groove lacks this feature. This asymmetry ensures that when a user attempts to insert the tool, the geometry of the grooves provides tactile and geometric feedback that guides the tool to the correct groove, reducing the risk of inserting it into the wrong groove.
Solution Approach 2:
The grooves are designed to be self-identifying through their geometric features. The presence of the guiding protrusion in the tongue groove and its absence in the insertion groove allows the system to self-correct user errors, as the tool will naturally follow the path of least resistance and engage with the groove that has the guiding feature.
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
Enables simple and efficient disassembly of locked panels, reducing the risk of assembly mistakes and improving the ease of reconfiguring furniture components, as the guiding protrusion ensures the tool is correctly positioned, allowing for easy unlocking and reassembly.
Implementation Method 1
The separate and flexible tongue (3) is displaceable inwardly towards a bottom of the insertion groove (4) and outwardly into the tongue groove (5) during a locking of the first and second panel
Data Source
Figure 1a~1d
Figure 2a~2d
Figure 3a~3d
AI summary
Panels are shown, which are provided with a mechanical locking system comprising a separate and flexible tongue (3) allowing connection with a snap action. An outer edge part (3a) of the separate flexible tongue (3) comprises a guiding protrusion (10) that facilitates easy disassembly of the panels and that is deformed during locking and/or unlocking.