Sheet Container Side Bulging Part Soft Touch Stability

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Solution Overview

Problem

Existing sheet containers with partially unattached layers and enclosed fillers tend to have stiff sealed parts, which do not provide a soft touch experience.

Innovation Solution

A sheet container design featuring a container body composed of laminated film layers with a side bulging part that presses the skirt part from the inside, allowing at least part of the side sealed part to fall forward or rearward, providing a softer touch and improved stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the sheet container uses laminated film layers with enclosed filler in non-attached parts, then shape retention property is improved, but the sealed part becomes stiff and does not provide soft touch

Engineering Contradiction:

Improveshape retention propertyVSAvoidtouch softness of sealed part

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The container body is divided into multiple functional parts: a rigid container body portion for shape retention, a separate skirt part for flexibility, and a bulging part that acts as a buffer between them. This segmentation allows each part to perform its specific function without compromising the overall performance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different parts of the container are given different mechanical properties: the container body uses laminated film layers with enclosed filler for rigidity and shape retention, while the skirt part and bulging part are designed with greater flexibility to provide soft touch. The local quality principle allows the container to have both rigid and flexible regions as needed.

Inventive Principle:

Principle #3Local quality

Solution Approach 3:

The bulving part is designed to press against the skirt part from the inside beforehand, creating a cushioning effect. This pre-positioned buffer structure ensures that when the container is handled, the bulging part absorbs mechanical stress and allows the skirt part to move flexibly, providing soft touch before any actual deformation occurs.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Stability of the object's composition

If the side sealed part is made rigid to maintain structural integrity, then container stability is improved, but the container cannot self-stand effectively

Engineering Contradiction:

Improvecontainer stabilityVSAvoidself-standing ability

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The skirt part is designed to be dynamically movable relative to the container body, rather than being rigidly fixed. The bulging part presses against the skirt part, allowing it to flex and adapt its position. This dynamic structure enables the container to adjust its configuration for self-standing while maintaining overall structural integrity through the rigid container body portion.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11548689B2Sheet material container

Publication Date: 2023.01.10 KAO CORP

AI summary

A sheet container has, formed in the bottom face of the container body, a non-attached part where the film layers are left partially unattached to each other. An filled part is formed by enclosing a filler between the film layers at the non-attached part. A side part of the filled part is a side bulging part bulging toward the skirt part. The side bulging part presses a pressed part above the lower edge of the skirt part from the inside toward the sideward. The lower edge of the skirt part is disposed inwardly from the pressed part.