Interlocking Roofing Panel Hook and Receptacle Mechanism

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Decorative metal roofing panels face challenges such as difficult installation, susceptibility to wind and water penetration, and objectionable geometry issues, including ship-lapped ends prone to water leakage, which complicate the installation process and increase the risk of damage.

Innovation Solution

An interlocking panel system featuring a receptacle with an entry and retaining portion separated by a shoulder, where a hook portion of a second panel is inserted into the receptacle, compressing upon entry and expanding to secure itself within the retaining portion, preventing withdrawal and enhancing installation efficiency and water resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional shingles or panels are used, then installation can be performed, but installation is time-consuming and labor-intensive

Engineering Contradiction:

Improveinstallation speedVSAvoidinstallation time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The roofing system is divided into modular panels with standardized interlocking mechanisms. Each panel is a self-contained unit with integrated fastening features, allowing independent installation without requiring continuous manual fastening operations throughout the entire roof surface.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The fastening mechanism is merged directly into the panel structure itself rather than being a separate component. The interlocking features are integrated at the edges of panels, combining the panel and fastener into a single unified assembly that simplifies installation to merely connecting panels rather than separately attaching fasteners.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If decorative metal roofing panels are used, then aesthetic appearance is improved, but susceptibility to wind and water penetration increases

Engineering Contradiction:

Improvewater and wind resistanceVSAvoidwater penetration and wind susceptibility

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The interlocking mechanism employs a nested configuration where one panel's edge feature is inserted into and contained within the corresponding receptacle of the adjacent panel. This nesting creates a protected cavity that shields the connection point from wind and water, preventing penetration while maintaining the decorative appearance.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If traditional overlapping shingle installation is used, then moisture shedding is achieved, but geometry integrity and water leakage resistance deteriorate

Engineering Contradiction:

Improvewater leakage resistanceVSAvoidgeometry integrity

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The interlocking mechanism employs asymmetric geometries where the hook portion and receptacle feature specific non-symmetric shapes. The hook portion has a curved configuration that engages with the rectangular receptacle in a specific orientation, ensuring proper alignment and preventing improper installation that could compromise geometry integrity or create leakage paths.

Inventive Principle:

Principle #4Asymmetry

4Ease of operation

If ship-lapped ends are used, then installation is simplified, but water leakage susceptibility increases

Engineering Contradiction:

Improveinstallation easeVSAvoidwater leakage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The potential harm of exposed edges being susceptible to water leakage is converted into a benefit by designing the edge features to interlock. The hook portion and receptacle at the panel ends create a protected connection that prevents water infiltration while maintaining the simplicity of end-panel installation, effectively turning the vulnerable exposed edge into a protected interlocked joint.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 interlocking system allows for quicker and easier installation from the roof peak to the eave, reducing moisture ingress and water leakage, while providing a durable, wind-resistant roofing solution.

Implementation Method 1

The hook portion is compressed upon entering the entry portion of the receptacle and subsequently expands upon passing the shoulder of the receptacle into the retaining portion of the receptacle

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11536033B2Interlocking roofing panel system and method

Publication Date: 2022.12.27 ENGLERT

AI summary

An interlocking panel system for covering a base surface with interlocking panels to prevent water ingress. A first panel is secured to the base surface. A second panel interlocks with the first panel via a hook portion on the second panel entering a receptacle of the first panel. The hook portion expands after entering a retaining portion of the receptacle, thereby preventing the hook portion of the second panel from being withdrawn from the first panel.