Harness for Wheeled Waste Container Leverage

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Solution Overview

Problem

Existing portable waste containers, such as trash cans with wheels, become heavy and awkward to handle when filled, requiring significant upper body strength, especially for the elderly or those with limited mobility.

Innovation Solution

A lever apparatus comprising a set of rod receptacles and a handle member with a rod and transverse handle member bar, which can be affixed to the back of a waste container, providing additional leverage to ease the movement of the container.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional wheeled container is used, then the container can be moved, but it requires significant upper body strength and causes bio-mechanical stress to the user

Engineering Contradiction:

Improveease of handlingVSAvoidupper body strength required

Core Design Contradiction:

Ease of operationVSForce

Solution Approach 1:

The container is divided into two functional parts: a stationary base with wheels and a separable lid assembly with handle. This segmentation allows the user to operate only the lid portion rather than moving the entire heavy container, reducing the force required for operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A lever mechanism acts as an intermediary between the user's hand and the lid. The lever provides mechanical advantage by transforming a small force applied at the handle into a larger force that tips the lid open, reducing the bio-mechanical stress on the user's upper body.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the container is designed with a fixed handle structure, then the structure is simple, but the handle may not accommodate users of different heights or preferences

Engineering Contradiction:

Improveadaptability to different usersVSAvoidstructural complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The handle structure incorporates dynamic elements including an adjustable-length telescopic bar and a flexible harness with straps. These dynamic features allow the handle configuration to be customized for different user heights and preferences while maintaining structural integrity through controlled mechanical connections.

Inventive Principle:

Principle #15Dynamics

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 apparatus reduces the bio-mechanical stress on the user, making it easier to tip and roll heavy waste containers, thereby improving handling capabilities for individuals with limited mobility.

Implementation Method 1

The motion required to tip/tilt the container adds stress to the upper body... a judiciously structured lever apparatus... providing additional leverage to ease the movement of the container

Methodology Applied

Scientific EffectLever: Lever

Implementation Method 2

The idea of easing the handling of waste containers... multiple versions of a hand truck type apparatus... that provide some mechanical advantage to the user

Methodology Applied

Scientific EffectMechanical advantage: Mechanical Advantage

Data Source

PatentUS20250145369A1Harness for container and use of same

Publication Date: 2025.05.08 ARIZONA RACK RENTALS LLC

AI summary

An apparatus devised to facilitate handling of a barrel-like wheeled container to provide leverage to the user and a method for operation of same.