Tapered Bag Roll Cassette for Easier Filled-Bag Removal
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Solution Overview
Problem
Conventional bag rolls in disposal units, such as garbage cans and compost bins, are difficult to remove due to increased volume when filled, making it hard to pull the filled bags out of the pail or wire rack.
Innovation Solution
A tubular bag design with a larger open diameter at the top and narrowing to a narrower diameter at the bottom, featuring parallel side edges, weld seams, and a flap, made of materials like ethylene vinyl alcohol or bioplastics, configured to hang on a tubular support with specific diameter and thickness ratios, allowing easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If bags are filled with waste, then the bag volume increases, but the bag becomes hard to remove from the pail or wire rack
Solution Approach 1:
The bag roll is divided into multiple individual bags that are interconnected. Each bag can be separated and removed independently from the roll, allowing easy removal of filled bags while maintaining volume capacity. The segmentation enables the user to pull out only the needed number of bags without having to handle the entire roll.
Solution Approach 2:
The bag roll is designed with a nested structure where multiple bags are contained within a single roll. The bags are stored in a compact nested arrangement that reduces storage space requirements, yet when a bag is pulled from the roll, it can be fully extended to its operational size for waste disposal.
2Volume of stationary object
If the bag roll is stored in a bottom of a pail or wire rack, then space is saved, but the filled bags are hard to pull upwardly out of the pail
Solution Approach 1:
The bag roll is designed with differentiated local qualities: the portion stored in the pail bottom maintains a compact configuration for space efficiency, while the portion extending upward for use maintains an expanded, accessible configuration. This local differentiation allows the same object to optimize both storage and operational characteristics in different spatial zones.
Solution Approach 2:
The bag roll system is designed to be dynamic rather than static. The roll can transition between a compact stored state when not in use and an extended operational state when bags are being dispensed. This dynamic adaptability allows the system to optimize for storage space when full and for ease of access when in use.
Data Source
AI summary
There is disclosed a bag having a tubular body with a top open end and a bottom closed end. The tubular body has a larger open diameter at the top open end. The tubular body narrows into a narrower open diameter adjacent to a bottom closed end. The tubular body in a flattened two-fold condition has a pair of side edges extending from a top edge to a bottom edge. The top edge delimits the top open end. The bottom edge delimits the bottom closed end. The pair of side edges are generally parallel to one another in a first portion adjacent to the top edge.