Paper Slip Stack Packaging With Pull-Tab Tear Release

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Solution Overview

Problem

Conventional packaging methods for paper slip stacks are cumbersome, as they require cutting the packaging sheet, making it difficult to maintain the stack's order during refilling and can lead to disarrangement, and the uppermost slip must protrude for easy removal, complicating the process.

Innovation Solution

A packaging system using a synthetic-resin film or shrink film with a tab and perforation lines allows for easy removal of the packaging sheet by pulling a tab, maintaining the stack's order and facilitating insertion and removal from a paper holder without cutting, using a fragile cutting part that can be torn with minimal force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the packaging sheet is cut with scissors to remove it, then the paper slip stack can be accessed, but the paper slip stack may slip out of hand and become disarranged

Engineering Contradiction:
Improvepackaging sheet removalVSAvoidpaper slip stack order
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The packaging sheet is segmented into a main body and a tab portion that can be pulled separately. The tab is formed by folding back a portion of the packaging sheet and adhering it to itself, creating a dedicated pulling element that allows users to remove the packaging without directly handling the paper slip stack, thus preventing disarrangement while enabling easy removal.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the packaging sheet is made secure to hold the paper slip stack, then the stack remains stable, but the packaging sheet becomes difficult to remove

Engineering Contradiction:
Improvepaper slip stack bundlingVSAvoidpackaging sheet removal
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The packaging sheet is divided into a stable main body that secures the paper slip stack and a separate tab portion that facilitates removal. The tab is formed by folding back and adhering a portion of the packaging sheet, creating a dedicated pulling element that allows easy removal without compromising the overall security of the bundled paper slip stack during storage and handling.

Inventive Principle:
Principle #1Segmentation

3Volume of moving object

If the uppermost paper slip does not protrude, then the packaging is compact, but it becomes difficult to pull the paper slip out of the holder

Engineering Contradiction:
Improvepackage sizeVSAvoidpaper slip removal from holder
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The tab serves as an intermediary element that connects the user's pulling action to the paper slip stack. When the tab is pulled, it gradually releases the packaging sheet from the paper slip stack, allowing the uppermost paper slip to emerge from the holder without requiring it to protrude beforehand. This mediator mechanism enables easy paper slip removal while maintaining a compact package structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2243410B1Package of paper slip bunch
Publication Date: 2013.07.17 FUJI PAPER CHEM
  • EP2243410B1 patent drawingFigure 1~2
  • EP2243410B1 patent drawingFigure 3~4
  • EP2243410B1 patent drawingFigure 5~6

AI summary

There is provided a package for paper slip stack, which can steadily and stably store the paper slip stack bundled by a packaging sheet and being easily released from the packaging sheet after being contained in a paper holder. The paper slip stack is formed by alternately interlocking half parts 5a and 5b of twofold paper slips 5 with one another oppositely in their folded directions so as to stack the paper slips 5 in piles in their mutually interconnected state and bundled by a packaging sheet 3 which is provided with a tab 4 protruding outward from one side opposite to either of upper or lower surfaces of the paper slip stack 2 and a fragile cutting part 7 formed anywhere in a longitudinal direction of the packaging sheet 3 so as to be cut by a tensioning force produced by pulling the aforesaid tab 4.