Sheet Member Container Non-Attached Region Filler Flow
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Solution Overview
Problem
Existing sheet member containers face challenges in achieving optimal fillability of the filling portion with a filler, as the movement and regulation of film layers between the outer and inner film layers are difficult, leading to inefficient filling processes.
Innovation Solution
The sheet member container design includes a structure with a non-attached region between the outer and inner film layers, where the peripheral edge sealing portion is folded to create a space for easy filler flow between the first and second surface portions, allowing the filler to easily flow through the interfacial connecting portion, enhancing fillability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outer film layer and inner film layer are attached across the entire surface, then the structural strength is improved, but the fillability with filler deteriorates
Solution Approach 1:
The container body surface is divided into a sealing region (where film layers are attached) and a non-sealing region (where film layers are not attached). This segmentation allows the filling portion to extend onto the container body surface, improving fillability while maintaining structural strength in the sealing region.
Solution Approach 2:
Different regions of the container body have different attachment properties: the sealing region has attached film layers for structural strength, while the non-sealing region has non-attached film layers to allow filler flow and improve fillability. This local differentiation resolves the contradiction between strength and fillability.
2Ease of manufacture
If the filling portion is arranged only in the body portion, then the manufacturing simplicity is improved, but the filling efficiency deteriorates
Solution Approach 1:
The filling portion is extended from the traditional three-dimensional space inside the container to also include the two-dimensional surface of the container body. This dimensional extension allows filler to flow more efficiently across the surface, improving filling efficiency while maintaining manufacturing simplicity.
3Stability of the object's composition
If the peripheral edge sealing portion is folded along the folding line, then the containment structure is improved, but the filler flow between surface portions deteriorates
Solution Approach 1:
The non-attached region is positioned to allow filler flow across the folded peripheral edge sealing portion. By creating a continuous non-attached path, the filler can flow between the first and second surface portions even when the peripheral edge is folded, maintaining ease of operation while preserving containment structure.
Data Source
AI summary
A sheet member container including one or more sheet members, including a main-body forming sheet member having an outer film layer and an inner film layer laminated on each other. The sheet member container has a containing portion that accommodates contents, a container main body including the main-body forming sheet member, and a peripheral edge sealing portion in which the one or more sheet members are folded along a folding line.