Spring-Actuated Trash Bag Retaining Ring for Janitorial Carts
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Solution Overview
Problem
Existing janitorial cart trash bag retention systems require manual force to engage and release, leading to inefficiencies in maintaining the open ends of disposable trash bags, which can fall into the receptacle as debris is added.
Innovation Solution
A spring-force actuated retaining ring mechanism with a locking mechanism and pushbutton release, securely retaining the open ends of disposable trash bags against the upper interior rim of the trash receptacle, preventing them from falling and allowing easy removal and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double U-shaped wire is used to retain the trash bag, then the trash bag can be retained between the wire and the top of the trash container receptacle, but a physical force by hand is required to engage and release the wire
Solution Approach 1:
The retaining wire is made dynamic through spring force, allowing it to automatically engage with the trash bag rim and be easily released by overcoming the spring force, transforming a static manual engagement system into a dynamic spring-actuated system
Solution Approach 2:
The spring mechanism provides self-service by automatically engaging the retaining wire with the trash bag rim without requiring manual positioning, and the release is facilitated by the spring's own force when the retaining structure is actuated
2Ease of operation
If the retaining mechanism is simplified, then the operation becomes easier, but the security of trash bag retention may be compromised
Solution Approach 1:
The spring force acts as an intermediary between the simple pushbutton operation and the secure retention requirement, translating the simple release action into the necessary force to disengage the retaining wire from the trash bag rim
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 mechanism ensures the trash bags remain securely in place during filling, preventing debris from falling and facilitating quick disposal and replacement, enhancing operational efficiency.
Implementation Method 1
A spring force retained mechanism is used to retain the retaining ring or wire against an interior rim of the trash receptacle portion of a janitorial cart
Implementation Method 2
The retaining spring force is overcome by a counter force from a cleaning person releasing a spring force retaining mechanism so that a counter spring force raises the retaining ring above the upper interior circumference
Data Source
AI summary
An apparatus which is used to very securely retain a disposable trash bag onto the upper interior circumference of the trash receptacle portion of a janitorial cart. It includes a retaining ring which is securely retained by spring force action against the upper interior rim of the trash receptacle. A trigger mechanism is used to lock the retaining ring in a raised condition over the upper interior circumference so that the open ends of a disposable trash bag are inserted between the retaining ring and the upper interior surface. The trigger mechanism is retained in place by engaging teeth which engage ratcheted receiving teeth. A pair of pushbuttons serve to release the trigger mechanisms so that the return spring force causes the retaining ring to move upwardly and release the entrapped disposable garbage bag.