Down Spout Safety Edge System with Elastomeric C-Shape Strip
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Solution Overview
Problem
Existing solutions do not effectively address the need for a safe, convenient, and economical method to cover the sharp lower edge of a down spout elbow to prevent accidental cutting.
Innovation Solution
A down spout safety edge system featuring a protective strip with an elastomeric material and a metallic component in a C-shaped configuration, which covers the edges of the elbow and is crimped onto the bottom to prevent movement, using undulations to deform and secure the strip in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a protective strip is used to cover the sharp edges of the elbow, then safety against accidental cutting is improved, but the device complexity increases
Solution Approach 1:
The protective strip utilizes an elastomeric material that forms a flexible shell covering the sharp edges of the elbow. This flexible material conformally wraps around the elbow's undulating surface, providing continuous edge protection while maintaining simplicity in installation and structure.
Solution Approach 2:
The protective strip comprises a nested structure where an inner component is embedded within an outer elastomeric layer. This nested configuration allows the protective strip to integrate multiple functions (structural support and safety coverage) within a unified simple form factor.
2Reliability
If the protective strip is secured using crimping on undulations, then stability and durability are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The protective strip incorporates undulations that allow dynamic adaptation to the elbow's geometry. The crimping mechanism works in conjunction with these undulations to create a secure mechanical interlock that maintains stability while accommodating normal variations in manufacturing tolerances.
Solution Approach 2:
The elastomeric material's physical parameters (flexibility, elasticity) are optimized to work with the crimping process. The material can deform during installation to accommodate undulation variations, then maintains stable attachment through its elastic recovery, reducing the impact of manufacturing precision variations.
3Object-affected harmful factors
If the protective strip covers all edges including long vertical side edges, then safety coverage is improved, but the quantity of material required increases
Solution Approach 1:
The protective strip is designed with varying coverage emphasis on different edges of the elbow. The elastomeric material provides continuous coverage on all edges, but the thickness and reinforcement are concentrated where most needed (such as corner crimping areas and sharp edges), optimizing material usage while maintaining safety.
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 system effectively prevents harm from the sharp edges while being durable, economical, and easy to manufacture and install, providing a safe and convenient solution for accidental cutting prevention.
Implementation Method 1
The finger deforms in response to contact with the undulations of the elbow
Implementation Method 2
The component is adapted to be crimped onto the bottom of the elbow
Data Source
AI summary
An elbow is positionable at the lower end of a down spout. A protective strip fabricated of an elastomeric material is positioned over the bottom of the elbow. The strip is fabricated to include an elongated member in a generally C-shaped cross sectional configuration. The elongated member covers a portion of the bottom of the elbow. The protective strip is fabricated to also include an elongated component in a generally C-shaped cross sectional configuration. The elongated component fabricated of a metallic material and is totally encased within the elastomeric material. The component is adapted to be crimped onto the bottom of the elbow.