Detachable Protruding Lip for Panel Vertical Locking

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Solution Overview

Problem

Existing panel systems for wall, ceiling, and floor coverings, especially in herringbone patterns, provide little to no vertical locking, making them unstable and difficult to manufacture with delicate profile elements that are prone to damage during installation.

Innovation Solution

A panel design featuring a detachable protruding lip with a predetermined break-off surface and different joint profiles on each side, allowing for secure horizontal and vertical locking through male and female locking elements, which can be easily aligned and connected without complex machining, reducing the risk of damage during installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional coupling elements are used to connect panels, then horizontal connection is achieved, but vertical locking is insufficient or nonexistent

Engineering Contradiction:
Improvevertical locking stabilityVSAvoidlocking system structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coupling element is divided into two separate components: a first coupling element with a locking protrusion on one panel, and a second coupling element with a locking recess on the adjacent panel. This segmentation allows each element to be simple in structure while together they provide reliable vertical locking through the interlocking protrusion-recess mechanism.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If delicate profile elements are used for locking, then precise fitting is achieved, but they are prone to damage during installation

Engineering Contradiction:
Improvejoint profile precisionVSAvoiddamage risk during installation
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The locking protrusion and locking recess are pre-formed as integral parts of the coupling elements during panel manufacturing, rather than being delicate adjustable components. This preliminary formation ensures precise geometry is built-in, and the robust integral construction protects against damage during handling and installation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The locking function is extracted as a separate, robust mechanical feature (protrusion and recess) from the overall coupling element design. This allows the locking mechanism to be simple and sturdy rather than relying on delicate profile elements, reducing susceptibility to damage while maintaining precision.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If complex machining is used to create locking profiles, then secure locking is achieved, but manufacturing becomes difficult and expensive

Engineering Contradiction:
Improvelocking securityVSAvoidmachining complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By segmenting the coupling into separate elements with simple protrusion and recess features, the manufacturing process is simplified. Each component can be produced using basic forming or molding operations rather than complex multi-step machining, reducing cost and difficulty while maintaining secure locking through the interlocking geometry.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism uses straightforward geometric parameters (protrusion height, recess depth, basic shapes) that are easy to manufacture with standard processes. This avoids complex curvature, undercuts, or precision tolerances that would require sophisticated machining, thereby simplifying manufacturing while ensuring reliable locking.

Inventive Principle:
Principle #35Parameter changes

4Reliability

If multiple separate locking elements are used, then vertical locking is improved, but installation becomes more difficult

Engineering Contradiction:
Improvevertical lockingVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The horizontal connection function and vertical locking function are merged into a single coupling element pair. The first coupling element and second coupling element work together to simultaneously provide both horizontal attachment and vertical locking through their integrated protrusion-recess design, eliminating the need for separate locking components and simplifying installation.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12123204B2Panels with a detachable protruding lip for wall-, ceiling- or floor coverings
Publication Date: 2024.10.22 LIGNUM TECH AG
  • US12123204B2 patent drawing
  • US12123204B2 patent drawing

AI summary

A panel with a detachable protruding lip for wall, ceiling or floor coverings is provided. Furthermore, methods are provided for manufacturing wall, ceiling or floor coverings comprising or consisting of a plurality of the panels.