Mechanical Floor Panel Locking With a Snapping Displaceable Tongue
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Solution Overview
Problem
Existing mechanical locking systems for floor panels, particularly those with flexible tongues, face challenges in preventing separation of short edges during installation, especially with thin panels and smooth surfaces, leading to installation difficulties and potential damage.
Innovation Solution
A displaceable tongue locking system that snaps into place horizontally, eliminating separation forces by displacing inwardly into a displacement groove and then outwardly into a tongue groove with a single action, allowing for easy installation and disconnection without vertical resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flexible tongue locking system is used for floor panels, then vertical locking strength is improved, but separation of short edges occurs during installation
Solution Approach 1:
The locking system is divided into separate functional components: a flexible tongue for vertical locking and a separate mechanism for preventing edge separation. The tongue is segmented into a locking portion and a pressing portion, allowing independent optimization of each function.
Solution Approach 2:
A pressing element is introduced as an intermediary component between the tongue and the short edges. This pressing element actively counteracts the separation force generated by the flexible tongue during installation, mediating between the locking action and edge stability.
2Strength
If a double action tongue displacement is used (inward then outward), then vertical locking is achieved, but installation complexity increases
Solution Approach 1:
The tongue is pre-configured with a pressing portion that contacts the short edges before the locking action occurs. This preliminary action prepares the system by positioning the pressing element to counteract separation forces during the subsequent locking motion.
Solution Approach 2:
The pressing function and locking function are merged into a single integrated tongue structure. The pressing portion and locking portion work together in a coordinated single-action mechanism, eliminating the need for separate inward and outward displacement steps.
3Manufacturing precision
If thin panels with smooth surfaces are used, then manufacturing precision is improved, but locking reliability decreases due to edge separation
Solution Approach 1:
The pressing element is designed to automatically engage and counteract separation forces during the installation process itself. The system uses the installation motion to activate the pressing action, making the reliability enhancement self-generated without requiring additional manual intervention.
Solution Approach 2:
The pressing portion of the tongue is positioned to preemptively counteract the separation force before it can cause edge separation. By applying a counteracting force in advance during the installation motion, the system prevents the harmful effect rather than correcting it afterward.
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 ensures secure locking and easy unlocking of floor panels with reduced risk of edge separation, facilitating simpler installation and stronger vertical locking, suitable for various panel thicknesses and materials.
Implementation Method 1
A displaceable tongue locking system that snaps into place horizontally, eliminating separation forces by displacing inwardly into a displacement groove and then outwardly into a tongue groove with a single action
Data Source
AI summary
Floor panels are shown, which are provided with a mechanical locking system on long and short edges allowing installation with angling of long edges and where the short edge locking system has a displaceable tongue that is displaceable essentially in one direction from an inner unlocked position to an final locked position.