Adjustable Stanchion Jaw Assemblies for Temporary Stair Guardrails
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a quick and safe method to erect a temporary guardrail on stairs during construction or remodeling to prevent injuries from falls, as existing solutions are not efficiently adaptable or easily removable.
Innovation Solution
A temporary guardrail assembly comprising a stanchion with adjustable jaw assemblies and brackets that can be securely attached to the stair stringer, allowing for rapid assembly and disassembly, and accommodating different angles and rail types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temporary guardrail is erected on stairs during construction, then safety is improved by preventing falls, but the complexity of installation and removal increases
Solution Approach 1:
The guardrail system is divided into separate modular components including stanchions, jaw assemblies, and handrail sections that can be independently handled and quickly assembled without complex integrated structures
Solution Approach 2:
The jaw assemblies incorporate movable adjustable mechanisms that allow the guardrail system to be dynamically configured for different stair geometries and easily repositioned or removed without permanent installation
2Loss of time
If a temporary guardrail system is designed to be quickly assembled and disassembled, then installation time is reduced, but the structural stability may be compromised
Solution Approach 1:
The system uses segmented modular components with standardized connection interfaces that enable rapid assembly while maintaining structural integrity through precise geometric fitting and mechanical interlocking
Solution Approach 2:
The jaw assemblies are pre-configured with adjustment mechanisms that allow for quick adaptation to different stair configurations, eliminating the need for complex field modifications while ensuring stable installation
3Adaptability or versatility
If the guardrail system is made adaptable to different stair configurations, then versatility is improved, but the device complexity increases
Solution Approach 1:
The stanchions and jaw assemblies are designed as universal components with standardized interfaces and adjustable features that can accommodate various stair types, angles, and configurations without requiring specialized parts for each application
Solution Approach 2:
The adjustable jaw mechanisms provide dynamic adaptability to different stair geometries through simple mechanical adjustments rather than complex reconfigurable structures, maintaining system simplicity while achieving versatility
Data Source
AI summary
An apparatus for use in erecting a temporary guardrail on a stair, having a stair stringer. The apparatus has an elongated stanchion. A first jaw assembly is operatively attached to the stanchion for engaging one side of the stringer, proximal the bottom edge thereof, and includes a first compression assembly to operatively urge the stanchion against the stringer. A second axially spaced, jaw assembly is operatively attached to the stanchion for engaging the one side of the stringer proximal a top edge thereof, and includes a second compression assembly to urge the stanchion against the stringer, and a bracket attached to the stanchion, and being adapted to receive a temporary guardrail member.