Floating Floor Panel Coupling for Hidden Expansion Compensation
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Solution Overview
Problem
Existing floating floor coverings face issues with expansion gaps that disrupt the visual continuity of the floor surface and are prone to panel unlocking or lifting due to heavy loads, and existing coupling mechanisms fail to adequately compensate for expansion and contraction under varying environmental conditions.
Innovation Solution
The panels feature male and female coupling parts with a tongue-and-groove joint, including overlapping contours and locking elements, allowing panels to move relative to each other while maintaining a visually seamless appearance, and incorporating bevels and slots to accommodate expansion and contraction without visible gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If floating floor coverings are installed without expansion gaps, then the visual continuity of the floor surface is improved, but the panels are prone to unlocking or lifting under heavy loads due to restricted expansion and contraction
Solution Approach 1:
The coupling mechanism is divided into multiple functional elements: a first coupling part with a groove and second coupling part with a tongue, allowing independent movement in horizontal and vertical directions. This segmentation enables the floor covering to expand and contract freely while maintaining visual continuity and preventing panel lifting or unlocking under heavy loads.
2Reliability
If expansion gaps are left between panels to allow free expansion, then panel reliability is improved, but the visual appearance is degraded due to visible gaps and the need for finishing profiles
Solution Approach 1:
The expansion gap functionality is merged into the coupling mechanism itself. The groove and tongue structure provides both mechanical locking and expansion compensation within the same component, eliminating the need for separate expansion gaps or finishing profiles, thereby maintaining visual continuity while ensuring reliable expansion compensation.
3Strength
If mechanical coupling parts are designed with rigid locking, then panel locking strength is improved, but the ability to accommodate expansion and contraction is reduced
Solution Approach 1:
The coupling mechanism incorporates dynamic elements that allow movement in specific directions. The groove and tongue design provides rigid locking in the vertical direction while allowing horizontal movement for expansion and contraction. This dynamic design maintains strong locking strength while adapting to environmental changes.
4Reliability
If finishing profiles are used to cover expansion gaps, then panel reliability is improved, but the device complexity and visual appearance are degraded
Solution Approach 1:
The expansion gap coverage function is extracted from the separate finishing profile and integrated directly into the coupling mechanism. The groove and tongue structure provides both locking and expansion compensation in a single integrated component, eliminating the need for additional finishing profiles and reducing overall device complexity.
Data Source
AI summary
The panel includes a first pair of opposite edges; these comprise male and female coupling parts—in the form of a tongue and groove and locking elements—in order to couple two such panels to each other on their first pair of opposite edges. The panel and coupling parts thereof are configured so that in a covering formed with these panels, the expansion and contraction of the panels in the coupling zone on the first pair of opposite edges is compensated in this coupling zone itself.