Floor Panel Locking System With Flexible Strip
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Solution Overview
Problem
Existing mechanical locking systems for floor panels, particularly those with HDF cores, face challenges in achieving strong and cost-efficient vertical locking without material compression, as bending of vertically protruding parts is limited, leading to high snapping resistance and separation forces, making tool-less installation difficult and costly.
Innovation Solution
A one-piece fold down locking system with a horizontally extending flexible strip that bends upwards and downwards during vertical displacement, utilizing a locking element with upper and lower surfaces that engage to provide strong vertical locking with low snapping resistance, allowing tool-less installation and cost-efficient production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a vertically protruding locking element is used for vertical locking, then vertical locking strength is improved, but bending flexibility is limited and snapping resistance increases
Solution Approach 1:
The locking system is divided into two functional parts: a horizontally extending strip that provides flexibility and bending capability, and a vertically protruding locking element that provides locking strength. This segmentation allows each component to optimize its specific function while working together as a unified system.
Solution Approach 2:
The invention transitions from purely vertical locking elements to a hybrid structure where a horizontal strip supports a vertical locking element. This dimensional change allows the horizontal component to provide bending flexibility while the vertical component delivers locking strength, resolving the contradiction between strength and ease of operation.
2Strength
If material compression is used to achieve vertical locking, then locking strength is improved, but production cost and complexity increase
Solution Approach 1:
The locking element is designed to lock vertically through its own geometric configuration and the natural bending of the horizontal strip, without requiring external compression forces or complex production processes. The system uses its inherent structural properties to achieve locking, eliminating the need for additional material compression steps.
3Strength
If a rigid locking system is used, then vertical locking strength is improved, but adaptability to different core materials decreases
Solution Approach 1:
The horizontal strip's flexibility parameter allows the locking system to adapt to different core materials. By adjusting the strip's flexibility and the locking element's geometry, the system can be optimized for various materials including HDF, particle board, and other fiber-based cores, while maintaining vertical locking strength.
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 achieves strong vertical locking with reduced snapping resistance and cost, enabling efficient tool-less installation and adaptable to various core materials, including HDF, by utilizing a flexible strip that bends and engages with locking surfaces to secure panels without material compression.
Implementation Method 1
a horizontally extending flexible strip that bends upwards and downwards during vertical displacement
Data Source
AI summary
Floor panels are shown, which are provided with a mechanical locking system that may be locked with a vertical displacement of a first panel against a second panel. The locking system includes a flexible strip that during locking bends upwardly or downwardly. The locking system includes a first and a second joint edge section with different locking functions. One section provides a horizontal locking and another section provides a vertical locking.