Elastic Support Base for Trash Bag Removal

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Solution Overview

Problem

Existing drawstring trash bags are difficult to remove from trash receptacles due to the need to pull them by the mouth, causing discomfort and potential spills, especially when filled, as they tend to swell and create tension on the body.

Innovation Solution

An elastic support structure with connected drawstrings and supporting straps that run along the front of the bag to a base at the bottom, allowing the bag to be pulled from the bottom, reducing tension and enabling easier removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the drawstring trash bag is pulled by the mouth to remove from the receptacle, then the bag can be removed, but the user experiences discomfort and the bag swells creating tension

Engineering Contradiction:

Improveease of removalVSAvoiduser discomfort and bag swelling

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

Instead of pulling the bag by the mouth (top), the invention inverts the pulling point to the bottom of the bag through the support base. This reversal eliminates the swelling problem and reduces user discomfort while maintaining effective removal capability.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The support base acts as an intermediary element between the user's hand and the trash bag contents. By introducing this intermediate structure at the bottom of the bag, the user can apply pulling force without directly stressing the bag mouth or causing swelling.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If the drawstring trash bag lacks a support base, then the structure is simple, but the bag swells and creates tension when filled

Engineering Contradiction:

Improvestructural simplicityVSAvoidbag stability when filled

Core Design Contradiction:

Device complexityVSStability of the object's composition

Solution Approach 1:

The invention segments the bag structure by adding a distinct support base component at the bottom, separate from the main bag body. This segmentation provides structural stability to counteract swelling while keeping the overall design relatively simple and modular.

Inventive Principle:

Principle #1Segmentation

3Ease of manufacture

If the drawstring is the only support structure, then the manufacturing is simple, but the bag cannot be easily removed when filled

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidease of removal when filled

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The invention merges the drawstring closure function with the support base structure. The support base is integrated with the drawstring system, combining two functions (closure and support for removal) into a unified structure that maintains manufacturing simplicity while improving ease of removal.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11628980B2Straps trash bag

Publication Date: 2023.04.18 PIERCE JASMINE L

AI summary

The invention is an improvement to the drawstring trash bag. The invention features a plastic bag made from two panels, and the straps are made from elastic material. The straps consist of a drawstring connected to the supporting straps, and the supporting straps connected to the supporting base. The straps from an elastic material. An elastic drawstring is provided within hems running along the top of the two panels and elastic support straps run down the font of both panels and connect to the support base. The support straps along the front of both panels are made to have slack in the straps. When the trash bag is filled the slack in the straps will lessen. When the filled trash bag is pulled by the drawstring and straps the trash bag will be easy to remove from the receptacle.