Floor Panel Locking With Vertical Snap Folding and Low-Friction Edges
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Solution Overview
Problem
Existing vertical snap folding locking systems for floor panels face challenges such as high displacement friction between long edges, unreliable vertical locking, and damage during installation, particularly in thin and wide panels, due to insufficient flexibility and guiding in the locking system.
Innovation Solution
The development of a mechanical locking system with enhanced long and short edge connectors, where the short edge locking system features a bendable strip and a tongue formed in one piece with the panel core, allowing for automatic locking with reduced friction and no need for tools, and the long edge system is designed for minimal friction to facilitate easy displacement during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vertical snap folding locking system is used for floor panels, then the installation speed and ease of operation are improved, but the reliability of vertical locking deteriorates due to insufficient flexibility and guiding in the locking system
Solution Approach 1:
The patent modifies the geometric parameters of the locking system components, specifically the tongue and groove dimensions, angles, and relative positions. The tongue is designed with specific angular orientations (e.g., 45 degrees to the panel edge) and the groove is configured with corresponding angles to enable proper engagement during vertical snap folding while maintaining reliability
Solution Approach 2:
The locking system is designed to be dynamic during installation, allowing the tongue to move vertically and horizontally during the snap folding process. The system transitions from a rigid configuration to an engaged state through controlled movement, enabling reliable locking after the dynamic installation process
2Strength
If the locking system is designed for strong vertical and horizontal locking, then the strength and reliability are improved, but the displacement friction between long edges increases making installation difficult
Solution Approach 1:
The locking system is segmented into distinct functional components: the tongue for vertical locking, the groove for horizontal locking, and the locking element for securing both. This segmentation allows each component to be optimized for its specific function while working together to reduce overall installation friction
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of the tongue-groove interface that mediates between the vertical and horizontal locking requirements. The tongue acts as a mediator that guides the panel into proper alignment while the groove receives it, reducing friction during the installation process
3Ease of operation
If the tongue is made very small to allow vertical snapping, then the ease of operation is improved, but the reliability of vertical locking deteriorates
Solution Approach 1:
The tongue is designed with optimized parameters including its size, shape, and angular orientation. Rather than being simply small, the tongue has specific dimensional parameters and angles (e.g., 45 degrees to the edge) that enable easy vertical snapping while maintaining sufficient contact area for reliable locking
Solution Approach 2:
The tongue and groove interfaces incorporate curved or angled surfaces rather than flat surfaces. The tongue is oriented at specific angles and has curved engagement surfaces that facilitate smooth vertical snapping motion while ensuring reliable mechanical interlocking
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
This solution enables easy and reliable installation of floor panels with vertical snap folding, reducing the risk of damage and ensuring strong locking, even in thin and wide panels, by allowing automatic locking with minimal pressure and overcoming friction between long edges.
Implementation Method 1
The locking strip at the short edges is bendable, to obtain a resilient bending during the vertical snap folding action, which bending facilitates the assembling of the tongue and the tongue groove
Implementation Method 2
a minimum of friction facilitating a displacement, by a spring back force from the bending of the short edge locking strip, of the new panel in the horizontal direction along the long edge during the vertical snap folding action
Implementation Method 3
a spring back force from the bending of the short edge locking strip
Data Source
AI summary
Floor panels are shown, which are provided with a mechanical locking system on long and short edges allowing installation with vertical snap folding that could be accomplished automatically without tools and where the short edge locking system has a tongue made in one piece with the panel. The floor panels may have a first and a second connector at the long edges that are configured to obtain a minimum of friction facilitating a displacement, by a spring back force from the bending of a short edge locking strip, of a new panel in a horizontal direction along the long edge during the vertical snap folding action.