Boring Drill with Flat Surface for Fresh Air Inlet in Delaminatable Containers

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Solution Overview

Problem

Existing methods for forming a fresh air inlet in delaminatable containers are limited to the mouth area and struggle to create inlets in other portions without damaging the inner bag.

Innovation Solution

A method using a boring drill with a tubular end portion featuring a flat surface and a notch with a blade, allowing for the formation of a round hole in the outer shell while preventing contact with the inner bag, thus enabling the creation of a fresh air inlet at arbitrary positions on the container.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a punch cutter is used to form a fresh air inlet from outside the container, then the inlet can be formed, but it is difficult to securely form the inlet without damaging the inner bag and it is limited to the mouth area

Engineering Contradiction:

Improveposition flexibility for fresh air inletVSAvoidrisk of damaging inner bag

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces an intermediary protective structure (the support member or bearing) that mediates between the cutting tool and the inner bag. This intermediary element prevents direct contact between the cutter blade and the inner bag, eliminating the risk of damage while enabling cutting operations at various positions on the container exterior.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

Instead of forming the fresh air inlet from the inside out (which would risk damaging the inner bag), the patent inverts the approach by forming the inlet from the outside in, but with a protective bearing structure that prevents the cutter from contacting the inner bag. This inversion allows versatile positioning while maintaining safety.

Inventive Principle:

Principle #13The other way round (Inversion)

2Manufacturing precision

If the cutter blade is brought close to the inner bag to form the inlet, then the inlet can be formed, but the inner bag may be damaged

Engineering Contradiction:

Improveinlet formation accuracyVSAvoiddamage to inner bag

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The bearing or support member serves as a protective intermediary that maintains a precise gap between the cutter blade and the inner bag. This intermediary structure enables the cutter to operate close to the inner bag for precise inlet formation while simultaneously preventing direct contact that would cause damage.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs beforehand cushioning by providing a protective bearing structure in advance that cushions or absorbs any potential harmful contact between the cutter and the inner bag. This pre-positioned protective element ensures that even if positioning varies slightly, the inner bag remains protected.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Ease of manufacture

If a boring drill with flat surface is pressed against the outer shell, then a round hole can be formed, but the drill may contact and damage the inner bag

Engineering Contradiction:

Improveinlet formation simplicityVSAvoidinner bag integrity

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces a bearing or support member as an intermediary element between the boring drill and the inner bag. This intermediary structure allows the drill to be pressed against the outer shell for easy inlet formation while preventing the drill from contacting and damaging the inner bag.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enables the secure and efficient formation of a fresh air inlet in the outer shell of delaminatable containers without damaging the inner bag, facilitating air introduction between the outer shell and inner bag.

Implementation Method 1

machining to form a round hole in a workpiece using a boring drill by pressing the flat surface against the workpiece while rotating the drill to contact the blade with the workpiece

Methodology Applied

Scientific EffectCutting: Abrasion

Data Source

PatentEP3192602B1Method for processing article to be processed

Publication Date: 2019.11.27 KYORAKU CO LTD

Figure 1A~1C
Figure 2A~2D
Figure 3

AI summary

A method of machining a workpiece is provided that is capable of forming a fresh air inlet in an arbitrary position in an outer shell of a container. According to the present invention, a method of machining a workpiece is provided that includes: machining to form a round hole in a workpiece using a boring drill having a tubular end portion, the end portion provided with a flat surface and a notch, and having a blade on a side of the notch, by pressing the flat surface against the workpiece while rotating the drill to contact the blade with the workpiece.