Document Pouch Assembly with Tear-Off Stub
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Solution Overview
Problem
Conventional document pockets lack effective protection against creases and creasing, and are not conveniently manufactured or used, as they are often arranged freely in batches without a stabilizing mechanism.
Innovation Solution
The document pockets are held together by a stub formed by extensions of the panels, with a linear frangible zone allowing easy detachment while maintaining rigidity, and are manufactured by forming weld lines and perforations for easy assembly and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If document pouches are arranged freely in a box or bag, then manufacturing and packaging are simple, but the pouches lack protection against creases and wrinkles
Solution Approach 1:
The assembly is segmented into individual pouches stacked in a specific order, with odd-numbered pouches oriented in one direction and even-numbered pouches oriented in the opposite direction. This segmentation allows each pouch to benefit from the structural support of adjacent pouches while maintaining manufacturing simplicity.
Solution Approach 2:
Multiple pouches are merged into a single assembled unit with alternating orientations. The combined structure provides mutual support among pouches, protecting them from creases and wrinkles while maintaining ease of manufacturing through a systematic arrangement.
2Stability of the object's composition
If pouches are held together by a stub formed by panel extensions, then protection and stability are enhanced, but manufacturing complexity increases
Solution Approach 1:
The panels are extended during the pouch manufacturing process itself to form stubs that will later serve as connection elements. This preliminary action integrates the stabilizing feature into the base manufacturing process, avoiding the need for separate assembly operations.
Solution Approach 2:
The stub acts as an intermediary element formed by the extension of pouch panels. This intermediate structure enables the connection between pouches and provides stability without requiring complex external fastening mechanisms.
3Ease of operation
If a linear frangible zone is created for easy detachment, then ease of operation improves, but manufacturing precision requirements increase
Solution Approach 1:
The linear frangible zone is created by locally modifying the panel extension area through perforations or score lines. This localized treatment provides the desired detachment functionality without requiring high-precision manufacturing across the entire pouch structure.
Solution Approach 2:
The panel extension is transformed into a frangible connection by changing its physical parameters - creating perforations or score lines that reduce the bond strength in a controlled manner. This allows easy detachment while maintaining the structural integrity of the rest of the pouch.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides enhanced protection against creases, is simple to manufacture and use, and allows for individual pocket extraction while maintaining the others, offering convenience and stability.
Implementation Method 1
the connection made on the other side by a weld line along that side
Implementation Method 2
said linear frangible zone being configured to be tearable with a force between 2 and 10 N
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
This assembly comprises a plurality of document pockets (11) and a stub (12) formed by a plurality of overlapping marginal strips held pressed against each other, each marginal strip being connected, along one side, by a linear frangible zone, to one side of said pocket (11). Thus, the pockets (11) are held together by the stub (12), and each pocket (11) is individually detachable from the stub (12) by tearing the linear frangible zone connecting that pocket (11) and the associated marginal strip.