Breakable Spout With Interlocking Protrusions for Sealing Integrity

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Solution Overview

Problem

Conventional breakable spouts suffer from damaged sealing performance due to external forces during assembly, transportation, and storage, and they often retain chemical agents during washing, preventing effective filling with liquid content.

Innovation Solution

A breakable spout design featuring a deformable annular part with a communication hole that can be closed, allowing for individual manufacturing and assembly of the spout body and cover without direct force application to the breakable part, ensuring the spout can be washed and filled hygienically without leaving space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the cover is fitted into the breakable part using threading protrusion and sealing member, then the cover is secured to the spout body, but force is generated that damages the weakened part and deteriorates sealing performance

Engineering Contradiction:
Improvesealing performanceVSAvoidassembly process
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The invention divides the spout into separate components: spout body, cover, and breakable part. The cover is fitted to the spout body through engagement protrusions that distribute force across multiple contact points rather than concentrating force on the weakened part, thus avoiding damage while maintaining secure attachment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The engagement protrusions act as intermediaries between the cover and spout body, transferring the securing force through a distributed mechanism rather than directly to the weakened part. This intermediary structure protects the breakable part from damaging forces during assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If external force is applied to the cover during transportation or storage, then the cover is secured to the spout body, but the force damages the weakened part and deteriorates sealing performance

Engineering Contradiction:
Improvesealing performanceVSAvoidexternal force during transportation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The engagement protrusions are designed to absorb and distribute external forces applied during transportation and storage before these forces can reach the weakened part. This pre-cushioning mechanism protects the breakable part from damage during handling and transit.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

By segmenting the connection mechanism into multiple engagement protrusions, the structure creates force distribution paths that isolate the weakened part from external impacts, maintaining sealing integrity during transportation.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If one opening of the cylindrical spout is closed by the breakable part, then the spout structure is complete, but chemical agents remain in the spout during washing and content cannot enter

Engineering Contradiction:
Improvewashing and fillingVSAvoidspout structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The breakable part is designed to be easily broken by the user before use, creating an open flow channel that allows washing chemicals to reach all surfaces and enables content to enter the spout. This preliminary breakable state facilitates proper cleaning and filling operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The spout structure transitions from a closed state (with breakable part intact) to an open state (after breaking), allowing dynamic access for washing and filling while maintaining structural integrity when closed. This dynamic configuration resolves the contradiction between sealed structure and accessibility.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10035628B2Spout, package with spout and method of manufacturing the same
Publication Date: 2018.07.31 ORIHIRO ENGINEERING CO LTD
  • US10035628B2 patent drawing
  • US10035628B2 patent drawing
  • US10035628B2 patent drawing

AI summary

Breakable spout (100) of the present invention individually comprises spout body (110) and cover (160) that covers an outer circumference of spout body (110). Spout body (110) comprises cylindrical part (120) that has a center hole that serves as a flow channel (111) and breakable part (150) that is breakable at the tip end of cylindrical part (120). Cylindrical part (120) has a first protrusion (123) on an outer circumferential surface thereof. The cover has second protrusion (161) on an inner circumferential surface thereof. Second protrusion (161) engages first protrusion (123) when cover (160) is fitted to spout body (110) such that spout body (110) is covered with cover (120) from the tip end side of cylindrical part (120). Cover (160) covers spout body (110) and is secured when the first protrusion (123) engages the second protrusion (161). Opening (169) is formed in the portion of cover (160) that corresponds to communication hole (155) of annular part (154) when cover (160) is fitted to the spout body and covers spout body (110).