Panel Coupling Profile With Multi-Point Locking Against Release

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Solution Overview

Problem

Existing panel coupling systems face issues with reliable long-term locking, as they tend to release over time due to slight rotations, and struggle to balance easy joining with secure attachment.

Innovation Solution

The panel design features a joint profile with a downward projecting locking part and an upward projecting locking part, where the distance between contact points is optimized to prevent drifting apart, with inclined and curved surfaces ensuring secure engagement and resistance against material tearing, allowing for both downward and angling movements for easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a simple coupling system is used for easy assembly, then the joining process is simple and quick, but the locking reliability deteriorates over time due to slight rotations causing release

Engineering Contradiction:
Improveease of assemblyVSAvoidlocking reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The coupling system is divided into multiple independent locking portions (first locking portion, second locking portion, third locking portion, fourth locking portion) that function separately. Each locking portion engages at different locations (first point of contact, second point of contact) to provide distributed locking against various forces including rotational movements, preventing overall system failure from single-point stress

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coupling mechanism transitions from simple vertical engagement to multi-dimensional locking by incorporating angled contact surfaces that engage at multiple points. The first and second locking portions provide vertical locking, while the third and fourth locking portions engage at angles to resist horizontal and rotational forces, creating a three-dimensional interlocking system

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If multiple locking portions are added to improve locking reliability, then the coupling becomes more secure, but the device complexity increases

Engineering Contradiction:
Improvecoupling reliabilityVSAvoidjoint profile complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple locking portions are integrated into a single monolithic joint profile that is formed as one piece with the panel. The first locking portion, second locking portion, third locking portion, and fourth locking portion are all part of the same continuous structure, eliminating the need for separate components and simplifying manufacturing while maintaining multi-point locking functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The joint profile serves multiple functions simultaneously: the first and second locking portions provide vertical locking engagement, the third and fourth locking portions resist horizontal separation, and the angled contact surfaces distribute rotational stresses. This multi-functional design achieves comprehensive locking reliability without requiring multiple separate components

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11519184B2Panel
Publication Date: 2022.12.06 UNILIN NORDIC AB
  • US11519184B2 patent drawing
  • US11519184B2 patent drawing
  • US11519184B2 patent drawing

AI summary

A panel, which, at two opposite edges, includes coupling parts that allow joining by a downward movement, the coupling parts including a male part that fits in a female part, wherein the male part comprises a laterally protruding lip with at a lower side a downward facing support surface.