Panel Snap-Lock Assembly Using a Flexible Tongue Groove
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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 cost-effective connection without loose parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a separate flexible tongue is used in the locking system, then the connection strength and rigidity are improved, but the device complexity increases
Solution Approach 1:
The flexible tongue is integrated directly into the panel edge through an insertion groove, merging what would otherwise be separate components. This integration maintains the strength benefits of a flexible tongue while eliminating the need for separate parts, thus reducing device complexity.
Solution Approach 2:
The locking system utilizes a flexible tongue element that can bend and deform during assembly. This flexibility allows the tongue to snap into the groove and provide strong mechanical interlocking, achieving high connection strength without requiring complex additional components.
2Strength
If traditional locking systems with loose parts are used, then assembly strength can be achieved, but the ease of manufacture and assembly time are worsened
Solution Approach 1:
The flexible tongue and panel edge are combined into a single integrated structure through the insertion groove design. This eliminates the need for separate loose parts that would require additional assembly steps, simplifying both manufacturing and assembly processes while maintaining connection strength.
Solution Approach 2:
The flexible tongue automatically snaps into the groove during assembly through its own elastic deformation, without requiring external fasteners or additional components. This self-locking mechanism simplifies manufacturing by eliminating the need for separate fastening parts and simplifies assembly by enabling automatic engagement.
3Reliability
If a flexible tongue is used for soft core materials like particleboard, then the locking capability is improved, but the production complexity increases
Solution Approach 1:
The flexible tongue provides reliable locking capability for soft core materials by utilizing elastic deformation to create a strong snap-fit connection. The flexibility compensates for the softness of particleboard, ensuring dependable locking without requiring complex reinforcement structures.
Solution Approach 2:
By integrating the flexible tongue directly into the panel edge through the insertion groove, the design achieves reliable locking for soft materials without adding separate components. This integration maintains production simplicity while ensuring the locking system works effectively with particleboard and similar soft core materials.
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 easy, strong, and cost-effective assembly of panels, even with soft materials, by facilitating a snap-lock mechanism that ensures a rigid connection and simplifies the production process.
Implementation Method 1
The separate and flexible tongue is displaceable inwardly towards a bottom of the insertion groove and outwardly into the tongue groove during locking
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.