Rain Gutter Cover Forward Edge Hooked Attachment

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Solution Overview

Problem

Conventional rain gutter covers often leave a channel between the gutter lip and the cover, allowing leaves and debris to accumulate, which impedes water flow and can lead to gutter deformation or failure.

Innovation Solution

A rain gutter cover with a forward edge portion that engages the gutter lip in a mechanical interlocking arrangement, featuring a U-shaped rear portion, a perforated central portion, and a hooked edge portion to prevent debris accumulation and facilitate securement against the building facia, ensuring debris is shed outwardly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the forward edge portion of the gutter cover is mounted beneath the front gutter lip, then the gutter cover can be securely attached to the gutter, but a channel or pocket is created between the front lip and the gutter cover where leaves, twigs and debris may collect

Engineering Contradiction:

Improveattachment securityVSAvoiddebris accumulation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Instead of mounting the gutter cover beneath the front gutter lip (conventional approach), the forward edge portion is designed to extend forwardly beyond the front gutter lip. This inverts the mounting position to eliminate the problematic channel while maintaining secure attachment through the hooked edge portion that engages with the gutter structure from the front side.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The forward edge portion is designed with multiple dimensional extensions: it extends forwardly beyond the gutter lip in the horizontal dimension, and the hooked edge portion engages with the gutter from a forward position rather than from beneath. This dimensional repositioning eliminates the channel space where debris would accumulate while preserving attachment security.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If a conventional gutter cover design is used, then the structure is simple and easy to manufacture, but debris accumulates in the channel between the gutter lip and cover

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoiddebris collection

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The forward edge portion is segmented into distinct functional elements: a forwardly extending edge that positions the cover beyond the gutter lip, and a hooked edge portion that provides engagement. This segmentation allows each element to perform its specific function while maintaining overall manufacturing simplicity through integration into a single piece.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If the forward edge portion extends forwardly beyond the gutter lip, then debris accumulation is prevented, but the attachment mechanism becomes more complex

Engineering Contradiction:

Improvedebris preventionVSAvoidattachment structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The forwardly extending edge portion and the hooked edge portion are merged into a single integrated structure. This combining of functions eliminates the need for separate attachment components while achieving both debris prevention (through forward extension) and secure attachment (through the hooked portion engaging the gutter).

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11060293B2Rain gutter cover assembly

Publication Date: 2021.07.13 GRAVES STEVEN

AI summary

A gutter cover for a rain gutter includes a U-shaped rear portion, a forward edge portion, and a perforated horizontal central portion spanning between the rear and forward edge portions. The forward edge portion includes a web extending upwardly from the central portion, and a covering flange and downward hooked edge portion extending forwardly from the web. The hooked edge portion having an end positioned for engagement with the underside of a front lip of the gutter.