Door Hinge Lubrication Shield Preventing Aerosol Overspray

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Solution Overview

Problem

Aerosol propelled lubricants fail to effectively target door hinges, resulting in lubricant overspray to the surrounding door jam without the use of a lubricating hinge shield, making lubrication cumbersome, time-consuming, and messy.

Innovation Solution

A device that slides over and surrounds the door hinge, encapsulating it and isolating the lubricating spray stream within, using a hinge encasement tube and spray nozzle guide to contain the lubricant and prevent overspray.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If aerosol propelled lubricants are used without a hinge shield, then lubrication can be applied to the hinge, but lubricant overspray contaminates the surrounding door jam

Engineering Contradiction:

Improvelubrication applicationVSAvoidlubricant overspray contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The hinge shield acts as an intermediary device between the lubricant application source and the door hinge. It captures and contains the aerosol propelled lubricant, directing it precisely to the hinge while preventing escape to surrounding areas, thus eliminating overspray contamination

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The hinge shield employs a flexible or rigid shell structure that encloses the hinge area. This shell containment approach physically barriers the lubricant spray within a defined space, preventing harmful overspray while maintaining ease of lubricant application

Inventive Principle:

Principle #30Flexible shells and thin films

2Productivity

If aerosol propelled lubricants are sprayed without containment, then lubrication reaches the hinge, but the process becomes messy and time-consuming

Engineering Contradiction:

Improvelubrication efficiencyVSAvoidcleanup time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The hinge shield converts the potentially harmful overspray into a beneficial contained spray pattern. By directing the aerosol flow through the shield structure, the lubricant is channeled precisely where needed, transforming what would be waste into efficient targeted application, thereby improving productivity and eliminating cleanup time

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If lubricant is applied without a hinge shield, then application is simple, but lubrication effectiveness is reduced due to overspray dispersion

Engineering Contradiction:

Improvelubrication effectivenessVSAvoidlubrication system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The hinge shield segments the lubrication process into a contained zone and an excluded zone. By dividing the space around the hinge into a protected application area and a clean surrounding area, the device ensures lubricant remains where it is needed, improving effectiveness without significantly increasing overall system complexity

Inventive Principle:

Principle #1Segmentation

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

Effectively lubricates squeaky door hinges without removing the hinge pin, preventing and isolating aerosol propelled lubricant overspray, making the process more efficient and clean.

Implementation Method 1

aerosol propelled lubricants

Methodology Applied

Scientific EffectAerosol: Aerosol

Data Source

PatentUS10603682B1Device that assists in lubricating installed door hinges

Publication Date: 2020.03.31 ZALUCKI GEORGE

AI summary

A device that assists in lubricating installed door hinges is disclosed. This invention isolates aerosol propelled lubricant to the specific area of an installed door hinge while preventing overspray and containing the lubricating liquid within the device.