Container Handle Collar Axial Retention Mechanism

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Solution Overview

Problem

Existing container handles lack secure attachment mechanisms to prevent axial and rotational movement, leading to instability and potential detachment during use.

Innovation Solution

A handle and container assembly featuring a collar with axially spaced container retention features that engage corresponding handle retention surfaces on the container neck, combined with anti-rotation features to prevent axial and rotational movement, ensuring a secure fit through interference fits or snap-fit mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple handle attachment mechanism is used, then the device complexity is reduced, but the reliability of handle attachment deteriorates

Engineering Contradiction:

Improvehandle attachment mechanismVSAvoidhandle attachment security

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The handle attachment mechanism is segmented into multiple independent retention features (axially spaced apart container retention features) that work together to secure the handle to the container. Each retention feature engages with corresponding handle retention surfaces, creating a distributed attachment system that is both simple in individual components but reliable in overall function.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The collar of the handle is received by interference fit over the container neck, with the container retention features nested within the collar structure. This nested arrangement allows the retention features to be integrated into the handle assembly while maintaining secure engagement with the container, achieving reliable attachment without adding external complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Stability of the object's composition

If axially spaced container retention features are used, then the stability of handle attachment is improved, but the device complexity increases

Engineering Contradiction:

Improvehandle attachment stabilityVSAvoidretention feature structure

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The collar incorporates axially spaced container retention features at specific locations along its length, with each feature having localized engagement surfaces. This local quality approach provides stable attachment at critical axial positions without requiring complex structures throughout the entire collar, maintaining simplicity while achieving stability.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The retention features utilize the axial dimension of the collar by spacing features along the axial length of the container neck engagement. This dimensional approach allows multiple retention points to be distributed along the axial direction, providing stable attachment without increasing radial or circumferential complexity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Reliability

If anti-rotation features are added, then the reliability of handle attachment is improved, but the device complexity increases

Engineering Contradiction:

Improvehandle attachment securityVSAvoidanti-rotation feature structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The anti-rotation features are merged with the existing container retention features, combining multiple functions into a single structural element. The same axially spaced features that provide axial retention also incorporate anti-rotation capability through their geometric configuration, eliminating the need for separate anti-rotation components and maintaining device simplicity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The container retention features are designed to perform multiple functions simultaneously: axial retention through interference fit engagement and anti-rotation through their geometric configuration. This multi-functionality allows a single feature structure to provide both axial and rotational security, improving reliability without adding dedicated anti-rotation components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10815031B2Container, handle for a container, and handle and container assembly

Publication Date: 2020.10.27 OWENS BROCKWAY GLASS CONTAINER INC

AI summary

A container may include a neck including an external surface and at least one handle retention feature with axially lower and upper handle retention surfaces. A handle for a container may include a collar including spaced apart container retention features having axially lower and upper container retention surfaces to cooperate with the corresponding handle retention feature of the container to prevent axial movement of the collar with respect to the container.