Modular Panel Assembly with Integrated Tongue-and-Groove Locking

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Solution Overview

Problem

Conventional furniture assembly systems are cumbersome and unstable, requiring separate connecting pieces that increase complexity and cost, and are difficult to assemble without tools.

Innovation Solution

A set of panels with integrated tongue and groove mechanisms allows for easy assembly of a multi-module frame using only two types of panels and an optional corner element, eliminating the need for separate fastening elements and tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate connecting pieces are used to assemble multiple modules, then the assembled product can be formed, but the device complexity and production cost increase

Engineering Contradiction:
Improvemodular assembly capabilityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the connecting piece functionality directly into the panel structure by integrating tongues and grooves into the panel edges. This eliminates separate connecting components while maintaining modular assembly capability, directly resolving the contradiction between adaptability and device complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The panels are designed with universal tongue and groove features that can connect to multiple other panels in different configurations. The same panel type can serve multiple connection functions, reducing the need for specialized connecting pieces for different assembly scenarios

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

2Reliability

If multiple separate components are used for panel connection, then the assembled product can be formed, but the assembly process becomes cumbersome and time-consuming

Engineering Contradiction:
Improveconnection stabilityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The connection system is segmented into simple tongue and groove features that are already formed as part of the panel structure during manufacturing. This segmentation allows for quick, tool-free assembly by simply inserting panels into each other, eliminating the need for separate fastening operations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tongue and groove connection features are pre-formed as integral parts of the panels during panel manufacturing. This preliminary action eliminates the need for on-site assembly operations involving separate connecting pieces, significantly reducing assembly time while maintaining connection stability

Inventive Principle:
Principle #10Preliminary action

3Strength

If conventional mechanical locking systems are used, then panel connection is achieved, but additional components and tools are required

Engineering Contradiction:
Improvepanel connection strengthVSAvoidnumber of fastening elements
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The locking mechanism is merged into the panel structure itself through integrated tongue and groove features. The tongue of one panel fits into the groove of another, creating a mechanical lock that is part of the panel design, eliminating the need for separate fastening elements while maintaining connection strength

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The panels are designed to self-lock through their inherent tongue and groove geometry. When panels are inserted into each other, the tongue automatically engages with the groove, creating a secure connection without requiring additional fastening elements or tools

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11614114B2Panels for an assembled product
Publication Date: 2023.03.28 VÄLINGE INNOVATION AB
  • US11614114B2 patent drawing
  • US11614114B2 patent drawing
  • US11614114B2 patent drawing

AI summary

In a set of panels for an assembled product, a first panel and a second panel may be assembled with a third panel. An end surface of the third panel includes a first tongue and a second tongue. The first panel and the second panel are configured to be arranged with their respective end surfaces facing each other. A first tongue of the third panel is configured to be arranged in an edge groove of the first panel and a second tongue of the third panel is configured to be received in an edge groove of the second panel to join the panels at least in a first direction. The first panel and the second panel may be of a first panel type, and the third panel may be of a second panel type. A corner element may be connected to a side panel of an assembled product.