Bag storage case

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Solution Overview

Problem

Existing bag storage solutions face challenges in efficiently accommodating and retrieving stacked bags of varying sizes, as the take-out opening size can be either too large, allowing multiple bags to be removed at once, or too small, making it difficult to extract individual bags, while also ensuring visibility and easy access.

Innovation Solution

A bag storage case with a housing and holder design featuring a take-out opening that is narrower at the ends and wider in the middle, allowing for optimal insertion and retrieval of stacked and folded bags, with adjustable components to accommodate different bag sizes and improve visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the take-out opening is made large, then it is easy to take out the bag, but a plurality of bags may be taken out at a time

Engineering Contradiction:
Improveease of bag retrievalVSAvoidnumber of bags taken out at once
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The take-out opening has different widths at different locations: a first width at the end portion and a second width at the middle portion, where the second width is larger than the first width. This local variation allows the bag to be easily guided in at the narrow end while providing sufficient space in the middle for smooth retrieval operations.

Inventive Principle:
Principle #3Local quality

2Quantity of substance

If the take-out opening is made small, then only one bag can be taken out at a time, but it is difficult to take out the bag

Engineering Contradiction:
Improvecontrol of bag quantityVSAvoidease of bag retrieval
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The take-out opening is designed with a narrow first width at the end portion to control bag quantity and a larger second width at the middle portion to facilitate easy bag retrieval, combining both requirements in a single structure.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If the bag is contained in a drawer shelf or holder, then hygiene is improved, but the bag size and remaining amount are not visually recognizable

Engineering Contradiction:
ImprovehygieneVSAvoidvisibility of bag information
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The holder includes a transparent portion that allows visual recognition of the bag's size and remaining amount while maintaining containment for hygiene purposes.

Inventive Principle:
Principle #32Color changes

4Quantity of substance

If multiple bags are stacked for storage, then space efficiency is improved, but accessibility and visibility of individual bags deteriorate

Engineering Contradiction:
Improvestorage capacityVSAvoidbag accessibility
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The holder includes a curved surface that guides the bag toward the take-out opening, and the take-out opening itself has a curved profile with different widths at different portions, facilitating smooth bag retrieval from the stacked arrangement.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The transparent portion of the holder enables visual recognition of stacked bags, allowing users to see bag size and remaining amount without disturbing the compact stacked arrangement.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP3750454B1Bag storage case
Publication Date: 2024.11.20 TOSHIBA TEC KK
  • EP3750454B1 patent drawingFigure 1
  • EP3750454B1 patent drawingFigure 2
  • EP3750454B1 patent drawingFigure 3

AI summary

A bag storage case includes a holding part and a wall. The holding part holds a plurality of stacked bags. The wall has a take-out opening in a width direction of the plurality of stacked bags and a first width that is smaller than a second width of the plurality of stacked bags and a middle of the take-out opening is larger than opposite ends of the take-out opening in a stacking direction of the plurality of stacked bags.