Scaffold Safety Assembly: Removable Step Platform and Fall Gate

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Solution Overview

Problem

Existing safety devices for scaffolds do not adequately prevent workers from inadvertently falling off the platform while servicing the scaffold.

Innovation Solution

A scaffold safety assembly comprising a step unit with a platform and a gate that is removably attachable to the scaffold frame, allowing workers to access various areas without climbing, and a gate positioned adjacent to the platform to prevent falls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a worker stands on the scaffold frame to service it, then the worker can access the scaffold structure, but the worker risks falling off the scaffold

Engineering Contradiction:

Improveworker access to scaffoldVSAvoidfall risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary platform (step unit with platform and gate) between the worker and the scaffold frame. This platform serves as a safe intermediate surface for workers to stand on while servicing the scaffold, eliminating direct contact with the potentially hazardous frame structure and providing fall protection through integrated gates.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If existing safety devices are used, then some fall protection is provided, but they do not adequately prevent workers from inadvertently falling off the platform

Engineering Contradiction:

Improvefall protectionVSAvoidinadvertent falls

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements beforehand cushioning by providing a gate that is positioned to prevent falls before they can occur. The gate acts as a preventive barrier rather than a reactive safety measure, stopping inadvertent falls before they happen by blocking the path of potential falls.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The gate structure provides preliminary anti-action by opposing and preventing the harmful action of falling. The gate is positioned and configured to counteract any inadvertent movement that could lead to a fall, applying a preventive force against the potential harmful action before it occurs.

Inventive Principle:

Principle #9Preliminary anti-action

3Ease of operation

If workers climb the scaffold to access areas, then they can reach high locations, but they increase the risk of falling

Engineering Contradiction:

Improveaccess to various areasVSAvoidfall hazard

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The platform serves as an intermediary structure that allows workers to access various areas of the scaffold without climbing. The platform extends laterally from the scaffold frame, providing a safe intermediate surface that eliminates the need for climbing while maintaining access to different locations.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12359450B2Scaffold safety assembly

Publication Date: 2025.07.15 CRUZ JOAO PAULO

AI summary

A scaffold safety assembly for facilitating a worker to service a scaffold includes a scaffold that has a frame comprising a leg portion. A step unit is removably attachable to the leg portion of the frame of the scaffold to facilitate a worker to stand on the step unit. The step unit extends laterally away from the leg portion when the step unit is removably attached to the leg portion. In this way the gate facilitates the worker to access various areas of the scaffold without standing on the scaffold. A gate is removably attachable to the leg portion of the frame of the scaffold. Additionally, the gate is positionable adjacent to the platform to inhibit the worker from falling off of the platform.