Skylight Guard Assembly With Non-Penetrating Tension Mounting

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Solution Overview

Problem

Conventional skylight guard systems face issues with retrofitting, as they either introduce leaks or become loosened due to yield and creep stresses, posing safety hazards and maintenance challenges, particularly for commercial and industrial buildings.

Innovation Solution

A modular skylight guard assembly with adjustable rails and tension members, coupled with corner blocks and a mesh guard structure, designed for easy installation and customization to prevent deformation, ensuring secure attachment without penetrating the skylight frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional guard systems use fasteners that penetrate the skylight frame, then the guard can be securely attached, but leaks are introduced into the skylight

Engineering Contradiction:
Improveattachment securityVSAvoidwater leakage
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary mounting system consisting of surface-mounted brackets and channels that attach to the skylight frame without penetration. These intermediaries transfer the attachment function from penetrating fasteners to non-penetrating mechanical fixtures, thereby maintaining security while preventing water intrusion paths through the frame

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention replaces the traditional mechanical penetration system (screws/bolts through the frame) with a surface-mounted mechanical system using brackets and channels. This substitution eliminates the need to drill through the frame while providing equivalent or superior attachment security through distributed mounting points and mechanical interlocking features

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If conventional guard systems use non-penetrating mounting, then leaks are prevented, but the guard becomes subject to yield and creep stresses causing loosening over time

Engineering Contradiction:
Improvewater leakage preventionVSAvoidattachment security over time
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The mounting system incorporates adjustable and adaptable components that can accommodate thermal expansion, contraction, and structural movement without generating excessive stress. The bracket design allows for controlled movement and stress distribution, preventing the accumulation of yield and creep stresses that lead to loosening

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs materials and design parameters that reduce susceptibility to creep and yield stresses. This includes selecting appropriate material properties, optimizing bracket geometry for stress distribution, and designing connection features that maintain clamping force under varying load conditions, thereby ensuring long-term reliability without penetration-induced leakage

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If skylights are left unprotected, then maintenance access is easier, but safety hazards increase due to potential falls through deteriorated skylights

Engineering Contradiction:
Improvemaintenance accessVSAvoidfall safety hazard
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The guard system is designed with localized protection features that provide safety precisely where needed (over the skylight opening) while maintaining open access pathways for maintenance personnel. The guard structure is positioned and configured to protect against falls through the skylight while allowing workers to approach and service the skylight from safe positions

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The guard assembly serves as an intermediary safety element that mediates between the need for maintenance access and the requirement for fall protection. It creates a safe working environment by preventing direct contact with the hazardous skylight opening while still allowing necessary maintenance activities to proceed

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If a guard system is designed for permanent installation, then safety is maximized, but adaptability for different skylight configurations is reduced

Engineering Contradiction:
Improvesafety protectionVSAvoidcustomization to different skylights
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The guard system is divided into modular segments including adjustable brackets, configurable channels, and sectioned guard panels. This segmentation allows the system to be adapted to various skylight sizes and configurations while maintaining safety performance. Individual modules can be selected and combined to match specific application requirements

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mounting brackets and channels are designed with universal features that enable installation on different skylight frame types and configurations. The system incorporates adjustable parameters and multi-functional components that can accommodate various widths, heights, and frame styles, providing both safety and adaptability

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

Data Source

PatentUS9212489B1Skylight guard
Publication Date: 2015.12.15 SAFETY RAIL CO LLC
  • US9212489B1 patent drawing
  • US9212489B1 patent drawing
  • US9212489B1 patent drawing

AI summary

A guard assembly for a skylight. The assembly includes rails positioned on opposing sides of a skylight frame, connected by tension members that act to pull the rails laterally toward each other, causing the rails to clamp onto the skylight frame. The assembly can be coupled to the skylight without need for penetration fasteners that can cause the skylight to leak. The rails and tension members can be custom sized to proper dimension at a work site. In one embodiment, the guard assembly includes modular reinforcement components that spread out local clamping forces over a large area to mitigate the generation of yield and creep stresses that would otherwise cause the guard assembly to loosen over time. The guard assembly includes a guard structure that extends over the skylight and, in various embodiments, can be readily removed from the guard assembly for servicing of the skylight.