Snap-Action Perpendicular Panel Locking Without Loose Parts
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Solution Overview
Problem
Existing mechanical locking systems for furniture components, especially those made of soft core materials like particleboard, are complicated to produce and do not provide sufficient strength and rigidity, requiring loose parts and being time-consuming to assemble.
Innovation Solution
A mechanical locking system featuring a flexible tongue and groove design that allows panels to connect perpendicularly with a snap action, where the tongue is insertable into an inclined insertion groove and can displace inwardly and outwardly during locking, providing a strong and rigid connection without loose parts, and can be factory-integrated or produced separately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flexible tongue and groove locking system is used, then the connection strength and rigidity are improved, but the manufacturing complexity increases
Solution Approach 1:
The locking system merges the tongue and groove features directly into the panel edges themselves, eliminating the need for separate locking components. The tongue is formed as an integral part of one panel edge while the groove is formed in the opposing panel edge, creating a unified locking mechanism that provides strong connections without additional parts.
Solution Approach 2:
The system utilizes the flexibility parameter of the tongue element to enable snap-action engagement. The tongue is designed with specific flexibility characteristics that allow it to deform during insertion and then spring back to lock firmly into the groove, providing strong mechanical connection through controlled elastic deformation rather than rigid fitting.
2Productivity
If traditional connection devices with loose parts are used, then the assembly process is complicated and time-consuming, but the connection strength can be sufficient
Solution Approach 1:
The invention combines the locking functionality directly into the panel structure by forming tongues and grooves as integral features of the panel edges. This eliminates the need for separate loose locking parts that would need to be handled and installed, thereby simplifying the assembly process and increasing productivity while maintaining connection strength.
Solution Approach 2:
The locking system is designed to be self-assembling through a snap-action mechanism. When panels are brought together, the flexible tongue automatically engages with the groove without requiring manual manipulation of separate components, making the assembly process faster and simpler while ensuring proper connection.
3Ease of operation
If snapping connections with plastic components are used, then the assembly is simplified, but the connection strength and rigidity are insufficient
Solution Approach 1:
The system maintains the simplicity of snap connections by using flexible tongues that can deform during engagement, but improves strength and rigidity by optimizing the tongue's dimensional parameters, material properties, and geometric configuration. The tongue's flexibility allows easy assembly while its engineered dimensions and material selection ensure sufficient connection strength and rigidity for the application.
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 system enables cost-effective, simple, and strong perpendicular connections between panels, suitable for various materials, including particleboard, with improved assembly efficiency and reduced production complexity.
Implementation Method 1
a separate and flexible tongue (3) and said groove (6) comprises a tongue groove (5), or said edge (16) comprises a tongue groove (5) and said groove (6) comprises a separate and flexible tongue (3). The separate and flexible tongue (3) is insertable into the tongue groove (5) for connecting said panels to each other
Data Source
AI summary
Panels are shown which are provided with a mechanical locking system allowing perpendicular connection with a snap action. A set of panels including a first and a second panel, an edge of the second panel is insertable into a groove of the first panel, when the panels are arranged essential perpendicular to each other, to obtain a mechanical connection between the first and the second panel, when the second panel is displaced essentially perpendicularly to the first panel.