Application Container Weakened Portion Cap Separation

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Solution Overview

Problem

Existing storage containers for paste-like materials risk damaging the material during cutting and can roughen the surface, leading to potential damage and poor application when used on target surfaces.

Innovation Solution

A tubular application container with a cap that separates from the main body via a weakened circumferential cutting portion positioned away from the opening, preventing contact with the material during cutting and minimizing rough surfaces from contacting the target.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the thin portion is broken to expose the paste-like filling material, then the material can be accessed, but the cut end or inner wall may contact and damage the material

Engineering Contradiction:

Improveease of material accessVSAvoidmaterial damage from contact with cut end or inner wall

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent forms a spherical protrusion of the paste-like filling material before the breaking operation. This preliminary shaping ensures that when the thin portion is broken, the pre-formed spherical shape is already in place and can be easily removed without contact damage from the breaking edges

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces a spherical protrusion as an intermediary form between the stored material and the final application state. This spherical shape acts as a mediator that can be easily separated from the container without direct contact between the breaking edges and the material bulk

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If cutting is performed at the thin portion to separate the cap, then the cap can be removed, but the cut surface may roughen and contact the application target

Engineering Contradiction:

Improveease of cap removalVSAvoidrough surface contact with application target

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent extracts the cap separation function from the material access function by creating a distinct breaking portion in the main body wall. This allows the cap to be removed through breaking the container wall separately, preventing the rough cut surface from contacting the application target

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the container into distinct functional portions: a cap portion and a main body portion with a designated breaking section. This segmentation allows independent optimization of each portion's function, with the breaking portion specifically designed for clean separation away from the material exposure area

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11745920B2Application container with weakened portion

Publication Date: 2023.09.05 TOKIWA CORP

AI summary

An application container includes a main body that holds an application material, a cap, and a weakened portion that connects the cap to an outer peripheral surface of the main body. The main body has a tubular shape that extends in an axial direction and forms an opening to expose the application material. The cap overlaps the opening of the main body in the axial direction. The weakened portion is oriented substantially in a circumferential direction of the main body, at a position that is located away from the opening in the axial direction of the main body, and is configured to be split in response to an external force, so as to separate the cap from the main body.