Snap Fit Closure for Take-out Containers

Solution Overview

Problem

Existing take-out containers with lids that mash onto a base often fail to close securely, leading to potential spillage and uncertainty about whether the container is closed.

Innovation Solution

A container design featuring two parts with a snap fit closure, where tabs on one part are received into corresponding openings on the other part, providing a secure and reliable locking mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a lid is designed to mash onto a base for closure, then the container can be easily assembled, but the closure reliability is poor and the container may come open

Engineering Contradiction:

Improveease of assemblyVSAvoidclosure reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The closure mechanism is segmented into discrete tabs on one component and corresponding openings on the other component. This segmentation allows the lid and base to be easily assembled while providing multiple engagement points that enhance closure reliability and prevent accidental opening.

Inventive Principle:

Principle #1Segmentation

2Reliability

If tabs are received in openings to provide snap fit closure, then the closure reliability is improved, but the device complexity increases

Engineering Contradiction:

Improveclosure reliabilityVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The closure mechanism is segmented into discrete tabs on one component and corresponding openings on the other component. This segmentation allows the lid and base to be easily assembled while providing multiple engagement points that enhance closure reliability and prevent accidental opening.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If the container uses a secure fit closure, then leakage is minimized, but the ease of operation may be reduced

Engineering Contradiction:

Improveleakage preventionVSAvoidease of assembly

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The closure mechanism is segmented into discrete tabs on one component and corresponding openings on the other component. This segmentation allows the lid and base to be easily assembled while providing multiple engagement points that enhance closure reliability and prevent accidental opening.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250121988A1Container having snap fit closure

Publication Date: 2025.04.17 WADDINGTON NORTH AMERICA INC

AI summary

A container having first and second parts and having snap fit closure for holding contents therein. The first part has a trim extending outwardly along a perimeter of the first part and a first tab extending outwardly from the trim at a first side of the first part and the first part has a second tab extending outwardly from the trim at a second side of the first part; and a second part has a rim extending around its perimeter, the second part defining a first opening at the rim at a first side of the second part, the second part defining a second opening at the rim at a second side of the second part. The first tab is received in the first opening and the second tab is received in the second opening thereby providing a snap fit closure between the first part and the second part.