Inflatable Refuse Bin Liner for Ergonomic Lifting
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Solution Overview
Problem
Manual lifting of heavy objects, particularly when transferring refuse from mobile garbage cans to taller commercial bins, often results in injuries due to the awkwardness and strain involved in lifting and maneuvering the contents.
Innovation Solution
A mobile refuse container with a sealed liner and inflatable space between the container and the liner, where air is pumped in to lift the contents to a height accessible for easy transfer into a commercial bin, optionally using a lid-lifting mechanism to open the bin and a movable insert to control the shape of the liner during inflation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual lifting is used to transfer refuse from mobile garbage cans to commercial bins, then the transfer operation can be completed, but worker injuries occur due to heavy lifting and awkward maneuvers
Solution Approach 1:
The patent uses an inflatable liner (pneumatic system) to lift the refuse bag automatically. Air is pumped into the liner, causing it to expand and raise the refuse bag to the level of the commercial bin, eliminating the need for manual lifting and reducing worker injury risk
Solution Approach 2:
The patent replaces the manual mechanical lifting system with an automated pneumatic lifting system. Instead of workers physically lifting heavy refuse bags, the inflatable liner performs the lifting action through air pressure, substituting human mechanical effort with a pneumatic mechanism
2Reliability
If the commercial bin lid is kept closed for safety and hygiene, then contamination is prevented, but refuse transfer becomes difficult
Solution Approach 1:
The patent employs a lid-lifting mechanism that automatically raises the commercial bin lid before the refuse bag is transferred. This preliminary action ensures the lid is open in advance, allowing smooth refuse transfer while maintaining bin seal integrity by ensuring the lid is properly positioned before opening
Solution Approach 2:
The lid-lifting mechanism acts as an intermediary between the closed bin state and the open bin state. It provides a controlled transition by mechanically raising the lid, serving as a mediator that enables refuse transfer while maintaining the bin's structural integrity and seal
3Ease of operation
If the liner is inflated to lift refuse, then manual lifting is eliminated, but the liner shape becomes uncontrollable
Solution Approach 1:
The patent uses a rigid insert placed inside the inflatable liner to provide structural support and shape control in specific areas. The insert has different properties than the flexible liner, creating local quality differences that guide the liner's expansion and maintain control over the refuse lifting process
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
Eliminates the need for manual lifting by inflating the liner to raise the refuse to a height where it can be easily transferred into a commercial bin, reducing the risk of injury and simplifying the process of disposing of waste.
Implementation Method 1
An inlet to the inflatable space allows an inflation device to pump or push a flow of air or another gas into the inflatable space, causing the liner to push upward and inflate like a bladder
Data Source
AI summary
A refuse bin includes a liner sealed to a container. An inflatable space is between the liner and the container, and an inlet to the inflatable space conducts a flow to inflate the inflatable space from a deflated state to an inflated state. In the deflated state, the liner lines a cavity for refuse in the container. In the inflated state, the liner extends above the open end of the container. The flow into the inlet pushes the inflatable space toward the inflated state causing the liner to lift the refuse. The refuse bin may further include a lid-lifting mechanism activation by inflation of the inflatable space or an insert that helps shape the liner in the inflated state.