L-Shaped Gutter Hanger With Internal Leg For Roof Seal Protection
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Solution Overview
Problem
Existing gutter hanger designs require lifting shingles to install, which can damage the roof and disrupt the seal, allowing wind and water to penetrate, and often fail to maintain gutter alignment and uniform appearance.
Innovation Solution
An L-shaped gutter hanger with a downward extending leg that installs internally, providing a gauge for consistent installation, and an angled predrilled hole for secure attachment to the fascia board, along with additional support features like a v-notch and threaded fastener for secure attachment of the gutter lip, ensuring stability and aesthetic uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gutter hanger is installed from the outside or requires lifting shingles, then the gutter can be attached to the fascia board, but the seal at the bottom of the roofing shingles is broken, allowing wind and water to penetrate
Solution Approach 1:
The patent inverts the traditional installation approach by installing the gutter hanger from the interior of the gutter rather than from the exterior. The downward extending leg is inserted through the gutter bottom from the inside, allowing the hanger to be attached to the fascia board without lifting or disturbing the shingles, thus maintaining the roof seal integrity while achieving secure gutter attachment
Solution Approach 2:
The gutter hanger design nests the downward extending leg within the gutter structure. The leg is inserted through the gutter bottom and positioned within the gutter interior, creating a nested configuration that allows external attachment to the fascia board while remaining concealed and protected within the gutter structure
2Duration of action of stationary object
If traditional gutter hangers are used without internal support, then installation is simpler, but the gutter moves significantly in the wind and has reduced lifespan
Solution Approach 1:
The patent adds a vertical dimension to the gutter attachment system by extending the hanger leg downward through the gutter bottom to the fascia board. This vertical extension creates a second attachment plane, anchoring the gutter at both the top (front edge) and bottom (fascia board), which significantly reduces wind-induced movement and extends gutter lifespan
Solution Approach 2:
The gutter hanger is segmented into distinct functional portions: a top portion that attaches to the front edge of the gutter, a downward extending leg that provides internal support, and a distal end that attaches to the fascia board. This segmentation allows each portion to perform its specific function optimally, providing both attachment and structural support
3Manufacturing precision
If gutter hangers are installed without a gauge, then installation is faster, but the gutters are not kept straight and uniform appearance is compromised
Solution Approach 1:
The downward extending leg of the gutter hanger serves a dual function: it provides structural support by anchoring to the fascia board, and it acts as a built-in gauge or guide during installation. The leg's fixed length and positioning automatically ensure consistent spacing and alignment of multiple hangers along the gutter, eliminating the need for separate measurement tools while maintaining uniform appearance
Data Source
AI summary
A gutter hanger for hanging a rain gutter on the fascia board of a structure or building. The gutter hanger includes an elongated horizontal top member connected to a downwardly extending back member. A bore for a fascia screw extends from a bump in the inner surface of the back member the outer or back surface of the back member or leg. The bump includes a bearing surface generally perpendicular to the axis of the bore. The gutter hanger also includes an upwardly extending protrusion to engage the lip of the gutter. The top member also includes a threaded bore hole to accept a screw, so that the top member may be attached to the top front of the gutter with a threaded fastener.