Nested Trash Liner Assembly with Collar and Venting
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Solution Overview
Problem
Current plastic liners for trash receptacles require frequent replacement, which is time-consuming and labor-intensive, especially in large settings like office buildings where hundreds of receptacles need daily attention.
Innovation Solution
A nested liner assembly with multiple liners stacked inside each other, featuring tabs for easy removal and a collar for secure attachment to the receptacle, allowing for sequential use and compact packaging, along with a durable outermost liner for extended use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single liner is used in a trash receptacle, then the liner is simple to insert and remove, but frequent replacement is required which is time-consuming and labor-intensive
Solution Approach 1:
Multiple liners are nested inside each other within a single receptacle, with each liner contained within the previous one. This allows sequential removal of liners as they fill with trash, eliminating the need to remove and replace entire liner assemblies frequently. The nested configuration enables one liner to be used while others remain ready for succession.
Solution Approach 2:
Multiple liners are pre-loaded into the receptacle in a nested configuration before use. This preliminary preparation ensures that when one liner becomes full, subsequent liners are already in position and ready for immediate use, eliminating downtime and frequent replacement operations.
2Productivity
If multiple liners are stacked inside each other, then liner replacement frequency is reduced, but the assembly becomes more complex and difficult to package
Solution Approach 1:
The nested configuration allows multiple liners to occupy the same spatial envelope, reducing the overall volume required for storage and transport. When packaged, the liners collapse into each other, creating a compact assembly that is easier to handle and store compared to multiple separate liners.
Solution Approach 2:
The nested liner assembly is divided into discrete, separable units (individual liners) that can be independently removed and replaced. This segmentation allows for simple manual operation where one liner is pulled out and the next is automatically revealed, maintaining operational simplicity despite having multiple liners.
3Duration of action of stationary object
If a durable outermost liner is used, then the liner can withstand multiple uses, but the cost of the liner increases
Solution Approach 1:
The liner system is segmented into two functional categories: a durable outermost liner that serves as a reusable receptacle, and inner liners that are disposable. This segmentation allows the expensive durable liner to be used repeatedly while the cheaper inner liners are replaced as needed, optimizing the balance between durability and cost.
Solution Approach 2:
Inner liners are designed as disposable, short-lived components that are replaced frequently, while the outermost liner is a durable, long-lived component. This approach uses inexpensive materials for the inner liners that don't need to withstand repeated use, while investing in durability only where necessary for the outer protective layer.
Data Source
AI summary
A nested liner assembly is a plurality of plastic trash liners, one inside the other, with tabs allowing liners to be pulled and separated, and which is held to a trash receptacle by a belt. A collar facilitates the assembling of the liners, holding the liners to the trash receptacle, and the orderly removal of the innermost liner from the remainder of the liners. Through a series of holes formed in the collar, trapped air inside the nested liners may be vented so that the assembly itself can be packaged compactly for shipment and storage.