Snap-Action Flexible Tongue Locking for Perpendicular Panel Joints
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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, using a tongue with a rigid outer part that can be displaced into a deep tongue groove for a firm lock, and can be produced cost-effectively without loose parts, facilitating assembly and providing strength even in soft materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a separate flexible tongue is used to connect panels, then the connection strength and rigidity are improved, but the device complexity and production difficulty increase
Solution Approach 1:
The patent merges the flexible tongue with the panel edge by forming it as an integral part of the panel during manufacturing. This eliminates the need for separate loose parts while maintaining the connection strength provided by the flexible tongue mechanism. The tongue is directly molded or formed as part of the panel structure, simplifying both the device and its production.
Solution Approach 2:
The locking system is segmented into distinct functional elements: the flexible tongue portion that provides connection strength, the groove portion that receives the tongue, and the panel body. This segmentation allows each element to be optimized for its specific function while being manufactured as an integrated component, resolving the contradiction between strength and complexity.
2Ease of operation
If special connection devices with loose parts are used, then the assembly can be achieved, but the assembly time and complexity increase
Solution Approach 1:
The flexible tongue is designed to automatically engage with the groove when panels are brought together, eliminating the need for manual manipulation of loose parts. The tongue's flexibility allows it to self-align and snap into the groove, making the assembly process intuitive and rapid without requiring additional tools or steps.
Solution Approach 2:
The flexible tongue is pre-formed as an integral part of the panel during manufacturing, with its geometry and flexibility characteristics optimized for automatic engagement. This preliminary preparation eliminates the need for assembly operations involving loose parts, reducing both assembly time and complexity.
3Ease of manufacture
If snapping connections with plastic components are used, then the assembly is simplified, but the production cost and complexity increase
Solution Approach 1:
The patent combines the snapping connection functionality with the panel structure itself by forming the flexible tongue as an integral part of the panel. This eliminates the need for separate plastic connection components, simplifying the overall device while maintaining ease of manufacture through standard panel fabrication processes.
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 simple, cost-effective, and strong perpendicular connections between panels, reducing assembly time and production complexity while ensuring rigidity, especially in soft core materials like particleboard.
Implementation Method 1
The separate and flexible tongue is displaceable inwardly towards a bottom of the insertion groove (4) and outwardly into the tongue groove (5) during locking
Data Source
AI summary
Panels are shown which are provided with a mechanical locking system allowing perpendicular connection with a snap action.